АКТИВИРОВАННЫЙ УГЛЕРОДНЫЙ ВОЛОКНИСТЫЙ МАТЕРИАЛ ДЛЯ ОЧИСТКИ ВОДЫ ОТ ТОКСИЧНЫХ ХИМИКАТОВ И СПОСОБ ЕГО ПОЛУЧЕНИЯ

Изобретение относится к области экологии, в частности к сорбционной очистке водных растворов от токсичных соединений фторангидрида метилфторфосфоновой кислоты CH3POF2, цианидов и мышьяковистых соединений, и может быть использовано в фильтрах для очистки воды коллективного пользования и в полевых средствах водообеспечения. Предложен активированный углеродный волокнистый материал, представляющий собой высокопористое углеродное волокно на основе углеродной ткани типа БУСОФИТ Т-55, состоящее из тонких нитей диаметром от 5 до 15 мкм, образованных преимущественно атомами углерода, при этом активированный углеродный волокнистый материал содержит оксид меди в количестве 2,0-3,0% мас. и гидроксид железа в количестве 12,0-14,0% мас. Способ получения активированного углеродного волокнистого материала включает приготовление пропиточного раствора путем разбавления концентрированного раствора солей железа и меди дистиллированной водой, подогретой до 30-40°С из расчета 0,340 кг/дм3 хлорного железа и 0,06 ...

A washing apparatus for 3D-Printed articles

A washing apparatus for a 3D-printed article is provided for the removal of support material from the article. The apparatus comprises a glove isolation cabinet 1 that is provided with a liquid-discharging nozzle (35, fig 2) to enable an operator to spray an article (A, fig 2) located in the cabinet 1 with a washing liquid and a drain (38, fig 3). A first filter arrangement 4 receives washing liquid discharged from the cabinet 1 via the drain (38, fig 3). The washing liquid drains through the first filter arrangement 4 under the influence of gravity. A pump (45, fig 6) is provided to pump liquid that has passed through the first filter arrangement 4 through a second filter arrangement (5, fig 5) such that solid material equal to or greater than 25μm in size is filtered out by the filter arrangements. Preferably, a platform 10 is provided within the glove isolation cabinet 1 on which the article (A, fig 2) is located.

FILTERING MEDIUM AS WELL AS PROCEDURE FOR ITS PRODUCTION AND USE

FILTRATIONSMITTEL FOR REMOVING FROM LEUKOCYTEN

FILTER CLOTH

Nonwoven filter media

Filter medium for leukocyte removal

PREPARATION OF A CATALYTIC FABRIC FILTER WITH LOWER PRESSURE DROP

Method for preparing a catalytic fabric filter comprising the steps of a) providing a fabric filter substrate, preferably consisting of glass fibers, having a gas inlet surface and a gas outlet surface, the gas inlet surface is coated with a polymeric membrane, preferably consisting of polytetrafluoroethylene; b) providing an aqueous impregnation liquid comprising one or more catalyst metal precursor compounds; c) impregnating the fabric filter substrate with the impregnation liquid; and d) drying and thermally activating the impregnated fabric filter substrate at a temperature below 300 °C to convert the one or more metal compounds of the catalyst precursor to their catalytically active form, wherein the drying of the impregnated fabric filter substrate in step d) is performed from the gas outlet surface.

ACTIVATED CARBON FIBER FILTER MEDIA LAMINATE

In one example, a filter media laminate is provided that includes a first non-woven layer, a second non-woven layer, and an activated carbon fiber (ACF) layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form the laminate.

HYBRID FILTER ELEMENT AND METHOD

The present invention relates to an apparatus for filtering a gas or liquid stream of impurities and to filter elements used in such an apparatus. The apparatus includes a closed vessel having a longitudinally extending length, an initially open interior, an input port at one extent and an output port at an opposite extent thereof. A partition located within the vessel interior divides the vessel interior into a first stage and a second stage. At least one opening is provided in the partition. A filter element is disposed within the vessel to extend from within the first stage. The filter element is made up of a carbon block filter media surrounded by a protective porous depth filter media.

RETAINING MATERIAL FOR POLLUTION CONTROL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND POLLUTION CONTROL DEVICE

A retaining material that can sufficiently maintain the function of retaining a pollution control element in a pollution control device at high temperature. In one aspect, the retaining material has a mat shape and contains inorganic fiber material, with the retaining material containing: a surface layer containing inorganic colloid particles; and an internal region positioned further to the inside than the surface layer, impregnated with inorganic colloid particles and organic binder; wherein the surface layer contains inorganic colloid particles at a higher concentration than the internal region; and the amount of inorganic colloid particles in the internal region is 1 mass% to 10 mass% based on the total mass of the retaining material.

BELT EDGE

The present invention relates to a belt comprising a warp yarn and a weft yarn, wherein the belt comprises a fused region along each longitudinal edge of the belt, said fused region being formed from the warp yarn, the weft yarn and a yarn provided for fusing the warp yarn and the weft yarn together.

BELT EDGE

The present invention relates to a belt comprising a warp yarn and a weft yarn, wherein the belt comprises a fused region along each longitudinal edge of the belt, said fused region being formed from the warp yarn, the weft yarn and a yarn provided for fusing the warp yarn and the weft yarn together.

GEOSYNTHETIC COMPOSITE FOR FILTRATION AND DRAINAGE OF FINE-GRAINED GEOMATERIALS

A geocomposite with a geonet and a geotextile. The geotextile has a nonwoven fabric layer and a woven fabric layer, with the nonwoven fabric connecied by needle-punching to the woven fabric whereby fibers of the nonwoven fabric extend through and beyond the woven fabric, and the woven fabric and fibers of the nonwoven fabric extending through the woven fabric are bonded to one side of the geonet.

IMPROVED COMPOSITION AND DESIGN OF A FILTER FABRIC USEFUL IN PULP AND PAPER MAKING APPARATUS

Filtering mediums are disclosed composed of fabric having a plurality of fibers where the surfaces thereof are coated with an ethylene chlorotrifluoroethylene copolymer. The fibers may also be extruded ethylene chlorotrifluoroethylene copolymer.

Procedure for the production, for the avoidance of ladders trained Filterhulle of a drainage element.

Polyarylene sulfide sulfone ultrafine fiber as well as preparation method and application thereof

FILTRATION MEDIA AND APPLICATIONS THEREOF

In some embodiments, the present invention provide filtration media for the treatment of flue gas streams and methods of making and using the same. In one embodiment, a filtration medium comprises a pollutant absorbent layer comprising a plurality of activated carbon fibers, at least one woven fabric, and at least one non-woven fabric, wherein the pollutant absorbent layer is positioned between the at least one woven fabric and the at least one non-woven fabric.

TACKY ALLERGEN TRAP AND FILTER MEDIUM, AND METHOD FOR CONTAINING ALLERGENS

An allergen trap is provided. The allergen trap includes a woven or nonwoven substrate having at least one strata. The trap is impregnated with or otherwise treated with a tacky adhesive by which allergens may be trapped. An example of an allergen is a dust mite. The tacky adhesive, in turn, may be treated with a miticide or activated carbon.

Melt processable perfluoropolymer forms

Melt processable perfluoropolymer forms in woven, non-woven and knitted manifestations, and products produced therefrom such as filters and filtration support media are made of melt processable single and/or multicomponent yarns from a wide range of deniers, shapes and crimps.

IMPROVED FABRICS

SEPARATION-MEMBRANE SUPPORT

A separation membrane support substrate characterized by being composed of a laminated nonwoven fabric comprising a front layer as the resin coating layer, a middle layer and a back layer which are integrally formed by heat bonding, and by satisfying the following conditions (1) to (5): (1) The front layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-30 µm ; (2) the middle layer has at least one layer comprising melt blown fibers with a single fiber diameter of no greater than 5 µm, and a fiber basis weight of at least 1 g/m2 and comprising no more than 30 wt% of the total fiber basis weight; (3) the back layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-20 µm, and has a fiber basis weight of 3-40 g/m2; (4) the laminated nonwoven fabric has an apparent density of 0.67-0.91 g/cm3; and (5) the laminated nonwoven fabric has a thickness of 45-110 µm.

VERFAHREN ZUR VERMEIDUNG VON LAUFMASCHEN AN DER FILTERHÜLLE EINES DRAINAGEELEMENTS.

A filter medium

A high temperature filter medium for use in a filtering operation comprises, a nonwoven fabric substrate having a physical structure and comprising a plurality of polymeric fibers, wherein at least a portion of the plurality of polymeric fibers comprise a base polymer and at least a portion of the plurality of polymeric fibers comprise a secondary polymer, and wherein the base polymer, the secondary polymer, or both bond at least a portion of the polymeric fibers together, the nonwoven fabric substrate being capable of retaining the physical structure at a filtering temperature greater than 135{C. A method for making a filter medium being capable of retaining the physical structure at a filtering temperature greater than 135{C.

PROCEDURE FOR THE PRODUCTION OF A FLEECE MATERIAL FOR A FILTER VOLUME

SCHLAUCHFÖRMIGE FILTER DIAPHRAGM

USE OF MATERIAL AS FILTER MATERIAL CONTAINING THERMOPLASTIC ONE, ELASTOMERS OF COPOLYETHERESTER

Geosynthetic composite for filtration and drainage of the fine-grained geomaterials

A geocomposite with a geonet and a geotextile. The geotextile has a nonwoven fabric layer and a woven fabric layer, with the nonwoven fabric connected by needle-punching to the woven fabric whereby fibers of the nonwoven fabric extend through and beyond the woven fabric, and the woven fabric and fibers of the nonwoven fabric extending through the woven fabric are bonded to one side of the geonet.

GEOSYNTHETIC COMPOSITE FOR FILTRATION AND DRAINAGE OF FINE-GRAINED GEOMATERIALS

A geocomposite with a geonet and a geotextile. The geotextile has a nonwoven fabric layer and a woven fabric layer, with the nonwoven fabric connecied by needle-punching to the woven fabric whereby fibers of the nonwoven fabric extend through and beyond the woven fabric, and the woven fabric and fibers of the nonwoven fabric extending through the woven fabric are bonded to one side of the geonet.

LEUKOCYTE-REMOVING FILTER MATERIAL

A leukocyte-removing filter material which consists of a porous element having fine pores of an average pore diameter of not less than 1.0 .mu.m but less than 100 .mu.m and a fiber structure composed of a plurality of fibers having an average fiber diameter of not less than 0.01 .mu.m but less than 1.0 .mu.m kept on the above porous element, wherein the porosity of the above filter material is not less than 50% but less than 95%, the proportion of the above fiber structure to the above filter material is not less than 0.01% by weight but less than 30% by weight, the ratio between the average pore diameter of the above porous element and the average fiber diameter of the above fiber structure is not less than 2 but less than 2,000 and the above fiber structure forms a reticulate structure; a process for producing the same; and an apparatus for removing leukocyte using the above filter material.

PROCESS FOR PREVENTING RUNS IN THE FILTER WRAP OF A DRAINING ELEMENT

At both ends of the filter wrap (6), in the fastening zones of the filter wrap to the draining element (1), attachments (12, 14, 15, 16, 17, 18, 19, 20, 21) of stitches (10) are intermittently located in one or several of the first rows (11) of stitches and are offset in the circumferential direction in one or several rows of stitches at the end of each fastening zone. In another embodiment, the attachment (22) of the stitches at the end of the fastening zone is continuous in the circumferential direction. These steps allow the formation of partial or complete runs in the fastening zone of the filter wrap (6), so that it is possible to enlarge the filter wrap (6) before mounting it, but prevent the formation of runs outside a fastening zone.

MULTI-LAYER, FLUID TRANSMISSIVE FIBER STRUCTURES CONTAINING NANOFIBERS AND A METHOD OF MANUFACTURING SUCH STRUCTURES

A multi-layer, fluid transmissive structure is provided that comprises first and second fiber layers each comprising a plurality of polymeric fibers bonded to each other at spaced apart contact points. The polymeric fibers of these fiber layers have diameters greater than one micron and collectively define interconnected interstitial spaces providing tortuous fluid flow paths through the first and second fiber layers. The structure also comprises a plurality of nanofibers disposed intermediate at least a portion of the first fiber layer and at least a portion of the second fiber layer.

Chemically charged-modified filter for removing particles from a liquid and method thereof

A chemically charged-modified filter for removing charged, micron to sub-micron sized particles from an aqueous liquid, the filter being composed of a filter sheet having a plurality of individual exposed surfaces, at least a portion of which having a surface energy of less than about 45 dynes per centimeter; amphiphilic macromolecules adsorbed onto at least some individual exposed surfaces having a surface energy of less than about 45 dynes per centimeter; and chemical charge modifiers incorporated onto at least a portion of the amphiphilic macromolecules; so that when said charge-modified substrate is in contact with the aqueous liquid containing the charged, micron to sub-micron sized particles, said particles are adsorbed onto the chemically charge-modified filter. Also disclosed is a method of removing charged, micron to sub-micron sized particles from an aqueous liquid in which an aqueous liquid containing charged, micron to sub-micron sized particles is passed through a chemically ...

FILTER MEDIA AND DEVICES FOR HIGH TEMPERATURE FILTRATION AND METHODS

A high temperature filter medium for use in a filtering operation comprising, a nonwoven fabric substrate having a physical structure and comprising a plurality of polymeric fibers, wherein at least a portion of the plurality of polymeric fibers comprise a base polymer and at least a portion of the plurality of polymeric fibers comprise a secondary polymer, and wherein the base polymer, the secondary polymer, or both bond at least a portion of the polymeric fibers together, the nonwoven fabric substrate being capable of retaining the physical structure at a filtering temperature greater than 135° C. A method for making a filter medium being capable of retaining the physical structure at a filtering temperature greater than 135° C.

RESPIRATORY MASK

The multifunctional respiratory mask according to the invention for separating fine dust, pollen and/or viruses from breathing air has a shielding device that forms an outer and/or inner air chamber in the face region of a wearer and shields it from the environment against fine dust, pollen and/or viruses. In addition, a forehead bracket is provided having a housing arranged in the region of the forehead of the wearer and having two holding brackets, each formed laterally thereon, in the manner of eyeglass temples. A connecting line connects the housing with the air chamber closest to the face of the wearer, wherein at least one blower integrated into an air duct, a power supply, and a textile filter element are arranged in the housing. In addition, a metal plate filter element is arranged in the air duct, which forms a filter unit with the textile filter element, wherein the metal plate filter element and the textile filter element are arranged to be individually exchangeable in the housing ...

Use of material as filter material containing thermoplastic elastomeric copolyetheresters

Feinfiltermatte mit Gewirk-Zwischenlage für Farbspritzkabinen und andere Reinräume

Vorrichtung zum Feinfiltern von Luft für Reinräume bzw. Farbspritzkabinen, enthaltend an sich bekannte, aus geschichteten Fasern bestehende Feinfiltermatten, die an der Decke des Reinraumes bzw. der Farbspritzkabine in bekannter Weise angeordnet sind, in bevorzugt senkrechter Strömungsrichtung von der zu filternden Luft durchströmt werden und von Stützgittern gegen den vom Durchströmwiderstand verursachten Differenzdruck abgestützt bzw. getragen werden, dadurch gekennzeichnet, dass auf der Reingasseite bzw. Unterseite der Matten ein vorzugsweise aus monofilen Kunststoff-Fäden bestehendes, maschenförmig gestricktes, schwingungsdämpfendes Gewirk an sich bekannter Form dergestalt angebracht ist, dass das Gewirk zusammen mit dem Hauptbestandteil, der Filtermatte, auf dem Stützgitter aufliegt.

Filter material used for filtering effluent or waste gases comprises a fibrous web forming the filter element for foreign materials arranged on a back which is formed as a fabric consisting of warp and weft threads

Filter material comprises a fibrous web forming the filter element for foreign materials arranged on a back which is formed as a fabric consisting of warp and weft threads. The warp and weft threads of the fabric partially consist of monofilaments. Preferred Features: The monofilaments of the fabric have a smooth surface which rejects foreign material and are made of plastic (polymer). The monofilaments are provide with a coating of a molten adhesive.

A washing apparatus for 3D-Printed articles

FILTER CLOTH, FILTER PROCEDURE AND FILTER DEVICE FOR THE LIQUID FILTRATION

FILTER CLOTH AND PROCEDURE FOR ITS PRODUCTION

FILTER CLOTH

The invention relates to a filter cloth for a filter, provided with a supporting surface, a fixing area for attachment to the filter and a filtration area which is borne on the supporting surface. An extensible fabric structure is provided at least in the filtration area in order to raise said filtration area from the supporting surface.Highly elastic monofilament threads are selectively incorporated into the fabric structure, at least in said filtration area, in order to produce a defined amount of elasticity.

SOLUTION-SPUN POLYAMIDE NANOFIBER NONWOVENS

A polymer, applications thereof, and method of making a nanofiber nonwoven product is disclosed which includes: providing a spinnable polyamide polymer composition comprising a solution of a polyamide in a suitable solvent, wherein the polyamide has a Relative Viscosity of from 30-300; a basis weight greater than 1 gm/m2, solution-spinning the polyamide polymer composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron (1000 nanometers); and forming the nanofibers into said nonwoven product which thereby has an average nanofiber diameter of less than 1 micron (1000 nanometers). Preferably, the nonwoven product is solution-spun from a process selected from (i) centrifugal spinning using a rotating spinneret or (ii) 2-phase propellant-gas spinning including extruding the polyamide polymer composition in liquid form with pressurized gas through a fiber-forming channel. Suitable solvents include formic acid, sulfuric acid, trifluoroacetic acid, hexafluoroisopropanol ...

PROCESS FOR PREVENTING RUNS IN THE FILTER COVER OF A DRAINING ELEMENT

Abstract of the Disclosure At both ends of a filter cover (6), respectively in the fastening area of the filter cover on draining element (1) r bondings or settings (12, 14, 15, 16, 17, 18, 19, 10, 21) of stitches (10) are applied, which are interrupted in one or more of first rows of stitches (11) and are offset in one or more rows of stitches at the end of the fastening area in the peripheral direction. In a modification, setting (22) of stitches (10) at the end of the fastening area is placed uninterrupted in the peripheral direction. These settings partially or completely allow runs in the fastening area of a filter cover (6), so that, on the one hand, an enlargement of filter cover (6) is made possible for the assembly, and, on the other hand, the formation of runs outside the fastening area is prevented

NONWOVEN FILTER MEDIA FOR GAS

The present invention provides a filter medium, which contains an electretized nonwoven web of crimped fibers selected from the group consisting of spunbond filaments and staple fibers, wherein the nonwoven web has a Frazier permeability equal to or greater than about 100 ft3/min/ft2 and a density between about 0.01 g/cm3 and about 0.095 g/cm3.

meio de filtração de feltro de múltiplas camadas termicamente ligado?

FILTER CLOTH

The invention relates to a filter cloth for a filter, provided with a supporting surface, a fixing area for attachment to the filter and a filtration area which is borne on the supporting surface. An extensible fabric structure is provided at least in the filtration area in order to raise said filtration area from the supporting surface.Highly elastic monofilament threads are selectively incorporated into the fabric structure, at least in said filtration area, in order to produce a defined amount of elasticity.

AIR-FILTER MEDIA COMPRISING A RELOFTED SPUNBONDED WEB, AND METHODS OF MAKING AND USING

A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0%, to at least 3.0%, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof. 1. An air-filter media comprising a relofted , spunbonded nonwoven web exhibiting a solidity of from less than 8.0% , to at least 3.0% , and exhibiting a Quality Factor of at least 0.30.2. The air-filter media of wherein the relofted web comprises a solidity of from less than 7.0% to at least 4.0%.3. The air-filter media of wherein the relofted web comprises at least some meltspun fibers that are charged.4. The air-filter media of wherein the relofted web comprises at least some meltspun fibers that are hydrocharged.5. The air-filter media of wherein the relofted web comprises at least some meltspun claim 1 , charged fibers that are monocomponent fibers.6. The air-filter media of wherein the air-filtration web comprises a Quality Factor of at least about 0.70.7. The air-filter media of wherein the web comprises a Quality Factor of at least about 1.0.8. The air-filter media of wherein the relofted web comprises fiber-fiber bonds and also comprises broken fiber-fiber bonds.9. The air-filter media of wherein the relofted web comprises multi-fiber area-bonds that are present at an area ratio of no more than 2.5%.10. The air-filter media of wherein the relofted web is a pleated relofted web.11. The air-filter media of further comprising a perimeter support frame mounted on each of four major edges of the air-filter media.12. The air-filter media of wherein the relofted web is a mechanically worked web.13. The air-filter media of wherein the mechanically worked web comprises a one-dimensional claim 12 , continuous working pattern.14. The air-filter media of wherein the mechanically worked web comprises a two-dimensional claim 12 , discrete working pattern.15. A method of filtering a ...

Method and device for removing contaminates from fluid-material

A method for removing contaminants from a fluid-material comprising: providing at least one substrate comprising a three-dimensional knit in an initial configuration made of knitted polymeric fiber which substantially resumes the initial configuration after it is released from stretching or compressing force; and submerging said at least one substrate in a fluidic material for treatment of the fluidic material.

SHEET MATERIAL AND FILTER ELEMENT WITH HYDROPHOBIC SEPARATING LAYER, USE THEREOF AND PROCESS FOR PRODUCTION OF SAME

The present invention relates to a sheet material and filter element, where the sheet material and the filter element have a hydrophobic separating layer, and also to use thereof and to a process for production of same.

Improved fabrics

Fabric comprising a plurality of fibers comprising at least one polymer material which is a blend composed of at least one poly(aryl ether ketone) and at least one poly(aryl ether sulfone). Filter assemblies and filtration systems incorporating such fabric, and use thereof.

АППАРАТ ДЛЯ ФИЛЬТРОВАНИЯ ТЕХНОЛОГИЧЕСКИХ ПОТОКОВ ТЕКУЧИХ СРЕД, ГИБРИДНЫЙ ФИЛЬТРУЮЩИЙ ЭЛЕМЕНТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

... 1. Аппарат для фильтрования технологических потоков текучих сред, содержащий: ! закрытый резервуар, имеющий удлиненную форму и открытую внутреннюю часть, внутри которой расположена перегородка с плоской внутренней и плоской наружной сторонами, соответственно разделяющая внутреннюю часть резервуара на первую ступень и вторую ступень; при этом в разделительной перегородке выполнено, по меньшей мере, одно отверстие; ! входное отверстие для приема жидкости в первую ступень резервуара; ! выходное отверстие для выхода жидкости из второй ступени; ! по меньшей мере, один цилиндрический фильтрующий элемент, который монтируется вокруг отверстия перегородки и располагается в первой ступени внутри резервуара и имеет герметичное уплотнение; ! цилиндрический фильтрующий элемент определенной длины с центральным отверстием-каналом, проходящим между его противоположными концами, при этом центральное отверстие окружено фильтрующим материалом угольного блока, причем фильтрующий материал угольного блока, в ...

Feinfiltermatte mit Schaumstoffunterlage für Spritzkabinen und andere Reinräume

Vorrichtung zum Feinfiltern von Luft für Farbspritzkabinen bzw. Reinräume, enthaltend an sich bekannte, aus geschichteten Fasern bestehende Feinfiltermatten, die an der Decke des Reinraumes bzw. der Farbspritzkabine in bekannter Weise angeordnet sind, in bevorzugt senkrechter Strömungsrichtung von der zu filternden Luft durchströmt werden und von Stützgittern gegen den vom Durchströmwiderstand verursachten Differenzdruck abgestützt bzw. getragen werden, dadurch gekennzeichnet, dass auf der Reingasseite bzw. Unterseite der Filtermatten eine vorzugsweise aus offenporigem Kunststoff-Schaum bestehende schwingungsdämpfende Unterlage in Form einer Matte sich über die gesamte Unterfläche erstreckend dergestalt angebracht ist, dass der Schaumstoff unter der Filtermatte, diese tragend, auf dem Stützgitter aufliegt.

Filter belt

Tower press belt

FILTER CLOTH AND EXCHANGEABLE FILTER MODULE

IMPROVED TEXTILE PLANAR FORMATIONS

PROCEDURE FOR THE AVOIDANCE OF LADDERS AT THE FILTER COVERING OF A DRAINAGE ELEMENT.

MATERIAL FOR THE FILTRATION OF VISCOUS LIQUIDS

Nonwoven filter media

Charge-modified nonwoven filter

FILTER CLOTH AND REPLACEABLE FILTER MODULE

The invention relates to filter cloth whose underside comprises substantially parallel, additional yarns (8) that are thicker than the rest of the yarns of the cloth, substantially parallel channels (9) being formed between the yarns, wherein filtered liquid passed through the cloth is allowed to flow in the direction of the surface of a filtering element (10) between the filtering portion of the cloth and the surface of the element. The invention further relates to a filtering module manufactured from the filter cloth of the invention.

AIR-FILTER MEDIA COMPRISING A RELOFTED SPUNBONDED WEB, AND METHODS OF MAKING AND USING

A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0 %, to at least 3.0 %, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.

TOWER PRESS BELT

A belt, for use in a tower press, comprises a first surface and a second surface having different properties such as differing permeability and/or particle capture properties.

CORRUGATED NONWOVEN WEBS OF POLYMERIC MICROFIBER

Of The Invention CORRUGATED NONWOVEN WEBS OF POLYMERIC MICROFIBER A composite structure contains a lofty corrugated nonwoven web of polymeric microfiber that is maintained in a corrugated condition by securing a fabric to the corrugated web at the valleys of the corrugations. The composite structure is made without substantially effecting web loft by (i) introducing the nonwoven web to the ends of a plurality of spaced paddles, (ii) causing the spacing between the ends of the paddles to decrease to corrugate the nonwoven web, and (iii) securing the fabric to the corrugated nonwoven web at the valleys of the corrugations. A composite structure of this construction made by this method provides very good filtration performance, making it particularly suitable for use as a filter in a cup-shaped face mask. The composite structure also is very suitable for use as thermal insulation in apparel.

NONWOVEN FILTER MEDIA

There is provided in accordance with the present invention a lofty filter medium for filtering fluid-borne particles, which comprises a nonwoven fiber web of crimped fibers selected from the group consisting of spunbond fibers and staple fibers, wherein the filter medium has a density between about 0.005 g/cm3 and about 0.1 g/cm3. The lofty filter medium is highly suitable for fluid-borne particle filtration applications, such as filtration media for transmission fluids, hydraulic fluids, swimming pool water, coolant oil or cutting fluid for metalworking, metal forming and metal rolling, air-borne particle filtration and the like.

SOLUTION-SPUN POLYAMIDE NANOFIBER NONWOVENS

Filter medium, method and device used in high temperature filtration processes

A high temperature filter medium for use in a filtering operation comprising, a nonwoven fabric substrate having a physical structure and comprising a plurality of polymeric fibers, wherein at least a portion of the plurality of polymeric fibers comprise a base polymer and at least a portion of the plurality of polymeric fibers comprise a secondary polymer, and wherein the base polymer, the secondary polymer, or both bond at least a portion of the polymeric fibers together, the nonwoven fabric substrate being capable of retaining the physical structure at a filtering temperature greater than 135 DEG C. A method for making a filter medium being capable of retaining the physical structure at a filtering temperature greater than 135 DEG C.

오염 제어 요소용 보유 재료, 그의 제조 방법, 및 오염 제어 장치

... 고온에서 오염 제어 장치 내에 오염 제어 요소를 보유하는 기능을 충분히 유지할 수 있는 보유 재료. 일 태양에서, 보유 재료는 매트 형상을 갖고 무기 섬유 재료를 함유하며, 보유 재료는 무기 콜로이드 입자를 함유하는 표면 층; 및 무기 콜로이드 입자 및 유기 결합제가 함침된, 표면 층보다 내부로 더 나아가 위치된 내부 영역을 함유하며; 표면 층은 내부 영역보다 더 높은 농도로 무기 콜로이드 입자를 함유하고; 내부 영역 내의 무기 콜로이드 입자의 양은 보유 재료의 총 질량을 기준으로 하여 1 질량% 내지 10 질량%이다.

Filtro não tecido de carga modificada

IMPROVED FABRICS

Fabric and mask

A fabric which desirably has antimicrobial and/or dustproof properties includes a textile material layer which is composed of microfibers with an average fiber diameter of from 1 to 100 µm and contains an inorganic porous substance, and a nanofiber nonwoven fabric layer which is laminated on the textile material layer and has an average fiber diameter of at least 1 nm but less than 1,000 nm. Hygienic products such as masks obtained using the fabric efficiently block microbes such as viruses, and inactivate or destroy the captured microbes.

PROCESS FOR PREVENTING RUNS IN THE FILTER WRAP OF A DRAINING ELEMENT

At both ends of the filter wrap (6), in the fastening zones of the filter wrap to the draining element (1), attachments (12, 14, 15, 16, 17, 18, 19, 20, 21) of stitches (10) are intermittently located in one or several of the first rows (11) of stitches and are offset in the circumferential direction in one or several rows of stitches at the end of each fastening zone. In another embodiment, the attachment (22) of the stitches at the end of the fastening zone is continuous in the circumferential direction. These steps allow the formation of partial or complete runs in the fastening zone of the filter wrap (6), so that it is possible to enlarge the filter wrap (6) before mounting it, but prevent the formation of runs outside a fastening zone.

FILTER CLOTH, FILTER METHOD AND FILTERING DEVICE FOR LIQUID FILTRATION

ФИЛЬТРОВАЛЬНАЯ ТКАНЬ ДЛЯ ФИЛЬТРАЦИИ ТВЕРДОГО ВЕЩЕСТВА ИЗ ЖИДКОСТИ

... 1. Фильтровальная ткань для фильтрации твердого вещества из жидкости, содержащая ткань-основу, сотканную из полимерных нитей (1, 2) машинного направления и поперечного направления, отличающаяся тем, что ткань-основа обработана после ткацкого переплетения полимерным материалом, имеющим более лучшую электропроводность, чем нити ткани-основы, и содержит покрытие (3) из электропроводного полимерного материала по меньшей мере на одной стороне ткани-основы. 2. Фильтровальная ткань по п. 1, отличающаяся тем, что по существу все нити ткани-основы содержат покрытие электропроводного полимерного материала. 3. Фильтровальная ткань по п. 1 или 2, отличающаяся тем, что указанный полимерный материал выполнен на основе полианилина. 4. Фильтровальная ткань по п. 1 или 2, отличающаяся тем, что полимерный материал выполнен на основе полипиррола. 5. Фильтровальная ткань по любому из предыдущих пунктов, отличающаяся тем, что фильтровальная ткань имеет водопроницаемость в пределах значений от 10 до 200 л/м2 ...

VERFAHREN ZUR HERSTELLUNG EINER FASERIGEN STRUKTUR MIT IMMOBILISIERTEM TEILCHENFÖRMIGEM MATERIAL

Belt edge

The present invention relates to a belt comprising a warp yarn and a weft yarn, wherein the belt comprises a fused region along each longitudinal edge of the belt, said fused region being formed from the warp yarn, the weft yarn and a yarn provided for fusing the warp yarn and the weft yarn together.

Filter cloth and method for producing the same

FILTER CLOTH, FILTER METHOD AND FILTERING DEVICE FOR LIQUID FILTRATION

The invention concerns a filter cloth for liquid filtration made from pile Polycloth, the pile threads (21) of which are on the flow side and lie flat against the backing fabric during filtration, creating a deep-bed filter. During the backwash they are raised by the reverse flow and the dirt particles are released. Backwash is preferably initiated by a movable suction device (13) on the front of the filter, which at the same time has a mechanical effect on the pile threads, making them stand upright during the backwash and lie flat afterwards.

FILTER CLOTH, FILTER METHOD AND FILTERING DEVICE FOR LIQUID FILTRATION

A filter cloth for liquid filtration is made as a long-pile fabric, the pile threads 21 of which lie on the flow side and are displaced against the supporting fabric during the filtration and form a deep filter, which at the time of back washing they are straightened by the back washing and release the dirt particles. The back washing is performed preferably by means of a sucti on bar 13, which at the same time acts mechanically on the pile threads, in order to promote an abrupt straightening of the pile threads at the time of back washing and the flattening of the pile threads after the back washing.

METHOD FOR MANUFACTURING SHRINK FABRIC, AND SHRINK FABRIC

A method for manufacturing a shrink fabric, and a shrink fabric to be used for filtering. The method is used for manufacturing a shrink fabric (1, 1') comprising a seam assembly (4) which is substantially diagonal with respect to the lateral direction of the shrink fabric (1, 1'). When arranged in place onto a drum filter, the seam assembly (4) of the shrink fabric (1, 1') is substantially diagonal with respect to the lateral direction of the drum (2) of the drum filter.

Method for retrovirus removal

Air-filter media comprising a relofted spunbonded web, and methods of making and using

A relofted, spunbonded nonwoven web exhibiting a solidity of from less than 8.0 %, to at least 3.0 %, and exhibiting a Quality Factor of at least 0.30. Methods of making a relofted web; and, methods of using a relofted web as an air-filtration web, e.g. as a filter media or a layer thereof.

FILTER MATTER FOR AIR CLEANING, FILTER MADE OF THE SAME, AND METHOD FOR MAKING THE SAME

A filter matter for air cleaning, an air-cleaning filter made of the matter, and a method for making the filter are provided. The filter matter for air cleaning includes a ventilating support and a porous web laminated on one side of the ventilating support and made of ultra- fine fibers formed by electro-spinning. The ultra-fine fibers are made of any one material or a mixture of at least two materials selected from the group consisting of polysulfone (PSU), polyethersulfone (PES), polycarbonate (PC), polystyrene (PS), polymethylmethacrylate (PMMA), polyethyleneterephthalate (PET), polyetherimide(PEI), polyimide (PI) and polyamideimide (PAI). Since the ultra- fine fiber web with a low adhesion characteristic is coated on a ventilating support by means of electro-spinning, the filter matter may give an excellent dust collecting efficiency with small energy consumption, so it may be effectively used for an air-cleaning filter.

FIBER STRUCTURE AND APPLICATION THEREOF

Provided is a fiber structure in which an extra-fine fiber layer and a substrate layer are integrated deeply. The fiber structure includes an extra-fine fiber layer 10 spreading in a plane direction, and a substrate layer 20 adjoining the extra-fine fiber layer, wherein the extra-fine fiber layer 10 includes extra-fine fibers having a number average single fiber diameter of 5 μm or less; the substrate layer 20 includes non-extra-fine fibers having a number average single fiber diameter of 7 μm or more; and in a cross section along a thickness direction of the fiber structure, the substrate layer 20 contains mixture portions 12 in each of which some of the extra-fine fibers pushed between the non-extra-fine fibers are widened in a crosswise direction.

Filter cloth and method for producing the same

The invention relates to a filter cloth for a filter press and to a method for producing said filter cloth. The inventive filter cloth has a filtration section through which the filtrate reaches a filter element of the filter press, and an edging section which rests against the edge of the filter element. The filtration area is provided with a cloth that differs from that of the edging section. The filtration area is woven from monofil yarns while multifil yarns are woven into the edging section.

MELTBLOWN FABRIC

A meltblown web is composed of fibers having a narrow fiber size distribution and low packing density. The web is characterized as a soft lofty web and exhibits exceptional filtration capability.

Filter material containing thermoplastic elastomeric copolyetherester, process for its production, its use and filter press containing it

Filter material (FM) contains synthetic yarn, at least 70 wt% of which consists of a thermoplastic, elastomeric copolyether-ester (CPEE) containing at least 95 wt% repeating units of formula -O-OC-Ar<2>-CO-OR<4> (I) and -O-OC-Ar<3>-CO-O-R<5> (II), in which Ar<2>, Ar<3> = arylene groups; R<4> = divalent aliphatic or cycloaliphatic group; R<5> = the divalent residue of a polyalkylene ether. Also claimed is (i) a process for the production of FM by weaving, knitting or spiralising yarn(s) as above to form a textile sheet and then making this into filter cloth by known methods; (ii) a filter press containing FM.

СПОСОБ ПРЕДОТВРАЩЕНИЯ СХОДА ПЕТЕЛЬ НА ВЯЗАНОЙ ТЕКСТИЛЬНОЙ ОБОЛОЧКЕ ДРЕНАЖНОГО ЭЛЕМЕНТА ФИЛЬТРА

FIELD: textile industry. SUBSTANCE: method involves fixing links on both ends of enclosure of filter 6, on portion by which filter enclosure is to be fastened on drainage member 1, with links on one or several first link rows being interrupted and positioned on first or several link rows at the end of fastening portion with offset in circumferential direction. In other version, links are fixed at the end of fastening portion in circumferential direction in continuous sequence. It allows links to come off partially or completely from fastening portion of filter enclosure. The filter enclosure may be thus stretched for mounting and, besides, formation of coming off links beyond fastening portion is prevented. EFFECT: increased efficiency and simplified method. 15 cl, 13 dwg 89716 0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ ” 2 097 458 ' О 04 В 1/14, О 06 С 29/00 13) СЛ 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93005265/12, 26.08.1992 (30) Приоритет: 12.09.1991 СН 2684/91 (46) Дата публикации: 27.11.1997 (56) Ссылки: ГЕ, заявка, 380203У7, кл. О 04 В 1/14, 1988. (86) Заявка РСТ: СН 9200169 (26.08.92) (71) Заявитель: Бухер-Гуйер АГ Машиненфабрик (СН) (72) Изобретатель: Эдуард Хартманн[СН] (73) Патентообладатель: Бухер-Гуйер АГ Машиненфабрик (СН) (54) СПОСОБ ПРЕДОТВРАЩЕНИЯ СХОДА ПЕТЕЛЬ НА ВЯЗАНОЙ ТЕКСТИЛЬНОЙ ОБОЛОЧКЕ ДРЕНАЖНОГО ЭЛЕМЕНТА ФИЛЬТРА (57) Реферат: На обоих концах оболочки фильтра 6 по необходимости на участке крепления оболочки фильтра на дренажном элементе 1 производится фиксирование петель, которые на одном или нескольких первых петельных рядах прерываются и располагаются на первом или на нескольких петельных рядах в конце участка закрепления со смещением в окружном направлении. В другой форме выполнения фиксация петель осуществляется в конце участка крепления в окружном направлении в непрерывной последовательности. Путем этих мер на участке крепления оболочки фильтра допускается частично или ...

АППАРАТ ДЛЯ ФИЛЬТРОВАНИЯ ТЕХНОЛОГИЧЕСКИХ ПОТОКОВ ТЕКУЧИХ СРЕД, ГИБРИДНЫЙ ФИЛЬТРУЮЩИЙ ЭЛЕМЕНТ И СПОСОБ ЕГО ИЗГОТОВЛЕНИЯ

FIELD: process engineering. SUBSTANCE: invention serves to separate impurities from gases and fluids. Proposed apparatus comprises closed vessel accommodating partition dividing it into first and second separation stages, inlet and outlet holes and cylindrical filtration element. Said filtration element comprises central bore-channel running between opposite ends of filtration element. Note here that said central bore is surrounded by filtration material representing coal blocks which, in its turn, is surrounded by protective filtration material with wavy-grained pores. The latter is made up of sheets of nonwoven material consisting of the mix of base fiber and binder material to be compacted to form preset-porosity sheet. Said protective filtration material represents a tube consisting of multiple coiled sheets. Note here that each sheet is heated and compacted to bind base fibers into porous filtration material. EFFECT: higher efficiency of filtration. 15 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 396 102 (13) C1 (51) МПК B01D 27/00 B01D 46/24 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008147007/15, 29.03.2007 (24) Дата начала отсчета срока действия патента: 29.03.2007 (72) Автор(ы): КРОГ Джон А. (US), КЛОУД Дэниел (US) (45) Опубликовано: 10.08.2010 Бюл. № 22 2 3 9 6 1 0 2 (56) Список документов, цитированных в отчете о поиске: US 2003222010 A1, 04.12.2003. RU 2082481 C1, 27.06.1997. RU 2058802 C1, 27.04.1996. RU 29859 U1, 10.06.2003. US 5827430 A, 27.10.1998. (85) Дата перевода заявки PCT на национальную фазу: 28.11.2008 2 3 9 6 1 0 2 R U (87) Публикация PCT: WO 2007/126828 (08.11.2007) C 1 C 1 (86) Заявка PCT: US 2007/007587 (29.03.2007) Адрес для переписки: 103735, Москва, ул. Ильинка, 5/2, ООО "Союзпатент", пат.пов. Ю.В.Пинчуку (54) АППАРАТ ДЛЯ ФИЛЬТРОВАНИЯ ТЕХНОЛОГИЧЕСКИХ ПОТОКОВ ТЕКУЧИХ СРЕД, ГИБРИДНЫЙ ФИЛЬТРУЮЩИЙ ЭЛЕМЕНТ И СПОСОБ ЕГО ...

FILTERTUCH UND AUSTAUSCHBARES FILTERMODUL

Refrigerant filter/drier

Hybrid filter element and method

NONWOVEN FILTER MEDIA

There is provided in accordance with the present invention a lofty filter medium for filtering fluid-borne particles, which comprises a nonwoven fiber web of crimped fibers selected from the group consisting of spunbond fibers and staple fibers, wherein the filter medium has a density between about 0.005 g/cm3 and about 0.1 g/cm3. The lofty filter medium is highly suitable for fluid-borne particle filtration applications, such as filtration media for transmission fluids, hydraulic fluids, swimming pool water, coolant oil or cutting fluid for metalworking, metal forming and metal rolling, air-borne particle filtration and the like.

MELTBLOWN FABRIC

A meltblown web is composed of fibers having a narrow fiber size distribution and low packing density. The web is characterized as a soft lofty web and exhibits exceptional filtration capability.

REFRIGERANT FILTER/DRIER

A filter/drier for receiving and discharging a flow of refrigerant having a head er with an inlet passage forming a plenum and an outlet passage through the header. A louvered baffle plate has peripheral tabs crimped over an annular flange on the header to form a subassembly. A cup-shaped shell containing desiccant, with a layer of fib rous filter material over the desiccant, is assembled over the header subassembly and sealed to the header by weldment. The peripheral spaces between the crimped baffle tabs provid e exclusive flow dispersion to an annular collector space in the header which comm unicates with the outlet passage.

Tacky allergen trap and filter medium

An allergen trap is provided. The allergen trap includes a woven or nonwoven substrate having at least one strata. The trap is impregnated with or otherwise treated with a tacky adhesive by which allergens may be trapped. An example of an allergen is a dust mite. The tacky adhesive, in turn, may be treated with a miticide or activated carbon.

PROCESS FOR PREVENTING RUNS IN THE FILTER WRAP OF A DRAINING ELEMENT

Filtercloth

An air induction system comprises a flow body and a filter housing. A pleated filter support (10) is connected to the housing (Figure 1). A filter (14) is supported by the pleated filter support (10), thereby supporting pleats on the filter (Figure 1). The pleated filter support may comprise support members (22) that define a pleated shape (Figure 1).

SURFACTANT-ASSISTED SYNTHESIS OF SURFACE-FUNCTIONALIZED NANOPARTICLE-POLYMER ELECTROSPUN COMPOSITES

A method is disclosed for synthesizing nanofilters for water treatment. The method includes: dispersing an active binding agent in an organic solvent solution to create a suspension of the active binding agent and the solution of the solvent; dissolving an organic polymer resin and an anionic surfactant in the suspension of the active binding agent and the solvent solution to create a sol gel; and electrospinning the sol gel to form electrospun nanofiber composites with embedded, surface-active nanoparticles. 1. A method for synthesizing nanofilters for water treatment , the method comprising:dispersing an active binding agent in an organic solvent solution to create a suspension of the active binding agent and the solution of the solvent;dissolving an organic polymer resin and an anionic surfactant in the suspension of the active binding agent and the solvent solution to create a sol gel; andelectrospinning the sol gel to form electrospun nanofiber composites with embedded, surface-active nanoparticles.2. The method of claim 1 , wherein the organic solvent comprises dimethylformamide (DMF) claim 1 , the organic polymer resin comprises poly-acrylonitrile (PAN) claim 1 , the active binding agent is amorphous iron oxide nanoparticles claim 1 , or silver nanoparticles claim 1 , and the anionic surfactant is sodium dodecyl sulfate (SDS) or a quaternary ammonium surfactant.3. The method of claim 2 , wherein the amorphous iron oxide nanoparticles are FeOnanoparticles claim 2 , the method further comprising:removing lead (Pb), Copper (Cu), and/or Cadmium (Cd) from a water source with the electrospun polyacrylonitrile (PAN) composite with surface-active nanoparticles.4. The method of claim 2 , wherein the active binding agent comprises silver nanoparticles claim 2 , the method further comprising:inactivating viruses from a water source with the surface-active nanoparticles.5. The method of claim 2 , wherein the iron oxide nanoparticle are Ferrihydrite (Fh) nanoparticles and ...

LONG-FIBER NONWOVEN FABRIC AND FILTER REINFORCEMENT MATERIAL USING THE SAME

A long-fiber nonwoven fabric includes fibers having a birefringence (Δn) of more than or equal to 0.005 and less than or equal to 0.020, a degree of crystallization of less than or equal to 25%, and an average fiber diameter of more than or equal to 30 μm and less than or equal to 60 μm, and has a basis weight amount of more than or equal to 50 g/mand less than or equal to 120 g/m, and a folding angle after being pressed for 10 seconds under a pressure of 5.2 kPa at 80° C. of less than or equal to 15°. Thus, the long-fiber nonwoven fabric has pleating property suitable for a filter reinforcement material, and also has rigidity that satisfies pleat shape retention property. 1. A long-fiber nonwoven fabric comprising fibers having a birefringence index (Δn) of more than or equal to 0.005 and less than or equal to 0.020 , a degree of crystallization of less than or equal to 25% , and an average fiber diameter of more than or equal to 30 and less than or equal to 60 the long-fiber nonwoven fabric having a basis weight amount of more than or equal to 50 g/mand less than or equal to 120 g/m , and a folding angle after being pressed for 10 seconds under a pressure of 5.2 kPa at 80° C. of less than or equal to 15°.2. The long-fiber nonwoven fabric according to claim 1 , wherein an average value of aspect ratios of fiber cross sections of the fibers constituting the long-fiber nonwoven fabric is more than or equal to 1.05 and less than or equal to 1.2.3. The long-fiber nonwoven fabric according to [[ or ]] claim 1 , wherein the fibers constituting the long-fiber nonwoven fabric are single fibers made of a resin containing polyethylene terephthalate serving as a main component and more than or equal to 0.02 mass % and less than or equal to 5 mass % of a thermoplastic polystyrene-based copolymer mixed thereto.4. The long-fiber nonwoven fabric according to claim 3 , wherein the thermoplastic polystyrene-based copolymer has a glass transition point temperature of more than or ...

WASHING APPARATUS FOR 3D-PRINTED ARTICLES

A washing apparatus for a 3D-printed article is provided for the removal of support material from the article. The apparatus includes a glove isolation cabinet with a liquid-discharging nozzle to enable an operator to spray an article with a washing liquid, and a drain. A first filter arrangement receives liquid discharged from the cabinet. The washing liquid drains through the first filter arrangement under the influence of gravity but the first filter arrangement is located in a trough in which washing liquid that has passed through the first filter arrangement accumulates whereby, in use, one or more filters of the first filter arrangement are submerged to ensure filtered-out residue remains submerged in the washing liquid. A pump is provided to pump liquid that has passed through the first filter arrangement through a second filter arrangement adapted to filter out solid material equal to or greater than 5 μm in size. 1. A washing apparatus for a 3D-printed article for removing support material from the article comprising:a glove isolation cabinet provided with a liquid-discharging nozzle to enable an operator to spray an article located in the cabinet with a washing liquid and a drain;a platform removably provided within the glove isolation cabinet on which said article to be washed is located, the platform comprising a tray above which is mounted a support plate on which the article sits; anda first filter arrangement that receives washing liquid discharged from the cabinet via the drain and through which the washing liquid drains under the influence of gravity;2. An apparatus as claimed in claim 1 , wherein the tray comprises a flat plate with a raised edge forming a weir over which the washing liquid can cascade but which predominantly retains solid particles in the tray.3. An apparatus as claimed in claim 2 , wherein the flat plate of the tray is covered by a mat.4. An apparatus as claimed in claim 1 , wherein a plurality of rollers is mounted in the ...

Vent cover for gas pressure regulator

Disclosed is a gas pressure regulator for gas or liquid that has inlet, an outlet and a diaphragm positioned between said inlet and said outlet in an manner that one side of the diaphragm controls the flow of fluid through the inlet to the outlet, a vent exposed to the opposite side of said diaphragm, and a spring in association with the opposite side of the diaphragm to adjust the position of the diaphragm, and a gas porous filter positioned in an manner that is adjacent the vent.

TOWER PRESS BELT

A belt, for use in a tower press, comprises a first surface and a second surface having different properties such as differing permeability and/or particle capture properties. 1. A belt for use in a tower press , the belt comprising a first surface and a second surface having differing properties.2. A belt according to claim 1 , wherein the differing properties comprise differing permeability and/or particle capture properties.3. A belt according to claim 1 , wherein the belt is divided into at least two segments claim 1 , and wherein when the belt is laid flat claim 1 , each segment has an upper face and a lower face claim 1 , such that the upper face of a first segment is the first surface and the lower face of this first segment is the second surface claim 1 , and that the upper face of each segment adjacent to the first segment is the second surface and the lower face of each segment adjacent to the first segment is the first surface.4. A belt according to claim 1 , wherein the belt is divided into at least two segments claim 1 , wherein when the belt is laid flat each segment has an upper face and a lower face claim 1 , and wherein:(a) the upper faces of all segments alternate, from one end of the belt, between the first surface and the second surface;(b) the lower faces of all segments alternate, from the same end of the belt, between the second surface and the first surface.5. A belt according to claim 3 , wherein an RFID tag is present between at least one pair of adjacent segments.6. A belt according to claim 5 , wherein an RFID tag is present between each adjacent pair of segments.7. A belt according to claim 1 , wherein the belt is woven.8. A belt according to claim 7 , wherein the belt comprises interlaced warp and weft multifilament yarns having a linear density of 470-3300 dtex (g/10 claim 7 ,000 m).9. A belt according to claim 7 , wherein the belt comprises interlaced warp and weft monofilament yarns having a diameter of 0.16-0.6 mm.10. A belt ...

WOVEN GEOTEXTILE FILTRATION FABRICS INCLUDING CORE-SHEATH SPUN YARNS

Disclosed are exemplary embodiments of woven filtration fabrics that include core-sheath spun yarns in either or both of the warp and weft directions. 1. A woven geotextile filtration fabric comprising:core-sheath spun yarn in one of a warp direction and a weft direction, the core-sheath spun yarn including a polypropylene or polyester core and a polypropylene or polyester fiber sheath having a round, oval, or multi-lobed cross section; andpolypropylene or polyester yarn in the other one of the warp and weft directions and having a round, oval, or multi-lobed cross-section;wherein the polypropylene or polyester core comprises monofilament yarn having a round, oval, or multi-lobed cross section, fibrillated yarn, or filament yarn; and2. The woven geotextile filtration fabric of claim 1 , wherein the polypropylene or polyester yarn in the other one of the warp and weft directions comprises polypropylene monofilament yarn having an oval claim 1 , round claim 1 , or multi-lobed cross section.3. The woven geotextile filtration fabric of claim 1 , wherein:the polypropylene or polyester yarn in the other one of the warp and weft directions comprises polypropylene monofilament yarn having an oval, round, or multi-lobed cross section;the polypropylene or polyester fiber sheath comprises a polypropylene or polyethylene terephthalate fiber sheath having a round cross section; andthe polypropylene or polyester core comprises polypropylene monofilament yarn having a round cross section, polypropylene fibrillated yarn, or polyethylene terephthalate filament yarn.4. The woven geotextile filtration fabric of claim 1 , wherein:the polypropylene or polyester yarn in the other one of the warp and weft directions comprises polypropylene monofilament yarn having a round cross section;the polypropylene or polyester core has a round cross section; andthe polypropylene or polyester fiber sheath has a round cross section.5. The woven geotextile filtration fabric of claim 1 , wherein:the ...

ELECTRET FIBER SHEET

Problem: The present invention allows a fiber sheet to be densely charged with electric charge and provides an electret fiber sheet that has excellent dust-collecting characteristics. 2. The electret fiber sheet according to claim 1 , wherein the a* and the b* are such that the maximum among −(b*)−(a*) values calculated at different points satisfies the following expression:{'br': None, 'i': b', 'a, 'sub': 'Max', '18≦[−(*)−(*)].'}3. The electret fiber sheet according to claim 1 , wherein the average a*of the a* values is in the range of 0 to 10 and the average b*of the b* values is in the range of −40 to −20.4. The electret fiber sheet according to claim 1 , wherein the maximum a*of the a* values is in the range of 5 to 18 and the minimum b*of the b* values is in the range of −40 to −20.5. The electret fiber sheet according to claim 1 , wherein the electret fiber sheet is produced by an electretizing method comprising a spraying step of impinging jets of water or a stream of water droplets on a non-conductive fiber sheet. The present invention relates to electretized fiber sheets. More specifically, the present invention relates to electret fiber sheets that achieve a charge distribution which is significantly different from one obtained by a conventional hydrocharging method and which is, in other words, a charge distribution having positive polarity charge unevenly distributed so as to be denser toward the surface in the fiber sheet, and that have excellent dust-collecting characteristics.Electretized fiber sheets are widely used because they exhibit high dust-collecting performance with low pressure loss when used as air filters. As a method for producing such electret fiber sheets, a method in which a high voltage is applied to fiber sheets such as a nonwoven web that are made of synthetic fiber and thus the fiber sheets are electretized by corona discharge is proposed (see Patent Literature 1).Electret fiber sheets produced by this corona discharge method ...

Depth filter

A depth filter with excellent filtration accuracy and pressure resistance performance even for fluids containing high density and high viscosity powder fine particles. A depth filter having a base material layer, a filtration layer, and a skin layer, in that order, wherein: the substrate layer and the skin layer are layers made by a nonwoven fabric being wound and thermally fused; the filtration layer is a laminate in which at least a nonwoven fabric and a net are laminated, being wound twice or more; and the nonwoven fabric contained in the filtration layer contains a mixed-fiber nonwoven fabric containing two or more types of fibers with mutually different average fiber diameters.

RETAINING MATERIAL FOR POLLUTION CONTROL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND POLLUTION CONTROL DEVICE

A retaining material that can sufficiently maintain the function of retaining a pollution control element in a pollution control device at high temperature. In one aspect, the retaining material has a mat shape and contains inorganic fiber material, with the retaining material containing: a surface layer containing inorganic colloid particles; and an internal region positioned further to the inside than the surface layer, impregnated with inorganic colloid particles and organic binder; wherein the surface layer contains inorganic colloid particles at a higher concentration than the internal region; and the amount of inorganic colloid particles in the internal region is 1 mass % to 10 mass % based on the total mass of the retaining material. 1. A retaining material comprising:a sheet comprising inorganic fiber material with inorganic colloid particles and organic binder essentially uniformly dispersed in the thickness direction of the sheet; anda surface layer containing inorganic colloid particles adhered so as to coat a surface of the sheet,wherein the amount of inorganic colloid particles in the sheet is 1 mass % to 10 mass % based on the total mass of the retaining material, and the surface layer contains a higher concentration of inorganic colloid particles than the sheet.2. The retaining material according to claim 1 , wherein the surface layer is adhered so as to coat opposite surfaces of the sheet.3. The retaining material according to claim 1 , wherein the amount of inorganic colloid particles per unit area of the surface layer is 1 g/mto 20 g/m.4. The retaining material according to claim 1 , wherein the amount of organic binder is 3 mass % or less based on the total mass of retaining material.5. The retaining material according to claim 1 , wherein the sheet is a needle punched molded material.6. The retaining material according to claim 1 , wherein the organic binder is an acrylic latex.7. The retaining material according to claim 1 , wherein the ...

THERMALLY BONDED MULTI-LAYER FELT FILTRATION MEDIA

A filter formed essentially from a staple fiber is provided. A nonwoven staple fiber is compressed in to a mat or sheet of selected porosity. The mat or sheet does not include a binder or bicomponent fibers. The staple fibers may be heat treated. The sheet is formed into a selected geometric shape and the staple fibers are thermally fused to bind the staple fibers into a porous filter element. The preferred shape is a helically wound tube or plural sheets, each sheet being self-overlapped and compressed to overlap another sheet. Each sheet is preferably heated and compressed individually and the sheets may be selected to have different porosities and densities. 1. A multi-layer laminated filter media comprising:a first layer of filter media, the first layer of filter media comprising fibers that are non-bicomponent and free of binder material to comprise a first single melt component;a second layer of filter media, the second layer of filter media comprising fibers that are non-bicomponent and free of binder material to comprise a second single melt component;a thermally bonded interface between the first layer of filter media and the second layer of filter media utilizing at least one of the first single melt component and the second single melt component.2. The multi-layer laminated filter media of claim 1 , wherein the first layer of filter media and the second layer of filter media are formed from a single filter media sheet that is overlayed upon itself such that the filter media of the first layer is the same as the filter media of the second layer.3. The multi-layer laminated filter media of claim 1 , wherein the first layer of filter media and the second layer of filter media are formed from different first and second filter media sheets claim 1 , respectively claim 1 , and wherein first filter media sheet has a different filtration efficiency and porosity as compared to the second filter media sheet.4. The multi-layer laminated filter media of claim 1 , ...

Geosynthetic Composite for Filtration and Drainage of Fine-Grained Geomaterials

A geocomposite with a geonet and a geotextile. The geotextile has a nonwoven fabric layer and a woven fabric layer, with the nonwoven fabric connected by needle-punching to the woven fabric whereby fibers of the nonwoven fabric extend through and beyond the woven fabric, and the woven fabric and fibers of the nonwoven fabric extending through the woven fabric are bonded to one side of the geonet. 1. A geotechnical layer for use in a geotechnical project site , comprising:(a) a geotextile for cross-plane filtering of fine particles from a fluid comprising:a primary layer consisting of a first nonwoven fabric with opposite faces and adapted to initially filter fluid having fine particles, anda secondary layer consisting of a first woven fabric with opposite faces and adapted to secondarily filter particles not filtered from the fluid by the first nonwoven fabric of the primary layer,wherein one of the opposite faces of said first nonwoven fabric is directly against one of the opposite faces of said first woven fabric, said first nonwoven fabric connected to said first woven fabric by needle punching whereby fibers of said first nonwoven fabric are punched into said first woven fabric to extend through said one opposite face of said first woven fabric; and(b) a drainage medium for in-plane flow of the fluid directly against the other of the opposite faces of the first woven fabric.2. The geotechnical layer of wherein said geotechnical layer is a geocomposite and said drainage medium is a geonet.3. The geotechnical layer of claim 1 , wherein said first woven fabric comprises woven high-modulus polymeric filaments.4. The geotechnical layer of claim 3 , wherein said filaments are monofilaments.5. The geotechnical layer of claim 3 , wherein said filaments are multifilament.6. The geotechnical layer of claim 1 , wherein said first nonwoven fabric has a cross-plane water flow rate of greater than 3 claim 1 ,000 liter/min/m.7. The geotechnical layer of claim 1 , wherein said ...

Spunbonded Air-Filtration Web

A single-layer spunbonded air-filtration web including meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 9.0 microns. The air-filtration web exhibits a mean flow pore size of from 8.0 to 19 microns and exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5. Also disclosed are methods of making such webs, and methods of using such webs to perform air filtration. 1. A spunbonded air-filtration web comprising meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 3.0 microns to 9.0 microns;wherein the web exhibits a mean flow pore size of from 8 to 19 microns and exhibits a ratio of mean flow pore size to pore size range of from 0.55 to 2.5.2. The air-filtration web of wherein the web exhibits a solidity of from greater than 8.0% to 18.0% claim 1 , a basis weight of from 60 to 200 grams per square meter claim 1 , and a Gurley stiffness of at least 500.3. The air-filtration web of wherein the meltspun autogenously bonded electret fibers are monocomponent fibers.4. The air-filtration web of wherein the web comprises meltspun autogenously bonded electret fibers with an Actual Fiber Diameter of from 5.0 microns to 8.0 microns.5. The air-filtration web of wherein the web is at least substantially free of nanofibers.6. The air-filtration web of wherein the web exhibits a ratio of mean flow pore size to pore size range of from 0.70 to 1.2.7. The air-filtration web of wherein the web exhibits a mean flow pore size of from 10 to 15 microns.8. The air-filtration web of wherein the web exhibits a Pore Size Range of 10-20 microns.9. The air-filtration web of wherein the web exhibits a Gurley stiffness of at least 800.10. The air-filtration web of wherein the web exhibits a pressure drop of less than 25 mm HO when tested at 85 liters per minute (LPM).11. The air-filtration web of wherein the web exhibits a Quality Factor of at least about 0.50 l/mm HO claim 1 , when tested with NaCl ...

HOLDING MATERIAL, METHOD FOR PRODUCING SAME AND GAS TREATMENT DEVICE USING SAME

A holding material includes a stack of a first mat and a second mat, the first mat including alumina fibers that include 60 wt % or more of alumina and 40 wt % or less of silica, and the second mat including silica fibers that include 60 wt % or more of silica and 40 wt % or less of alumina and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm. 1. A holding material comprising a stack of a first mat and a second mat ,the first mat comprising alumina fibers that comprise 60 wt % or more of alumina and 40 wt % or less of silica, and{'sup': '3', 'the second mat comprising silica fibers that comprise 60 wt % or more of silica and 40 wt % or less of alumina, and having a surface pressure higher than that of the first mat as measured at a gap bulk density of 0.30 g/cm.'}2. The holding material according to claim 1 , wherein either or both of the first mat and the second mat further comprise 1 to 20 wt % of an organic binder.3. The holding material according to claim 1 , having a thickness of 6 mm to 20 mm.4. The holding material according to claim 1 , the holding material being a cylindrical laminate in which the first mat is situated on an inner side claim 1 , and the second mat is situated on an outer side.5. The holding material according to claim 1 , the holding material being to be used for a gas treatment device.6. A method for producing a holding material comprising:producing a first mat using alumina fibers that comprise 60 wt % or more of alumina and 40 wt % or less of silica;producing a second mat using silica fibers that comprise 60 wt % or more of silica and 40 wt % or less of alumina, the second mat having a surface pressure higher than that of the first mat; andstacking and bonding the first mat and the second mat.7. A gas treatment device comprising:a processing structure that is formed to have a tubular shape;a casing that accommodates the processing structure therein; and{'claim-ref': {'@idref': ' ...

Fine fibers made from room temperature crosslinking

The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and ter substrates including the fine fibers.

FITER MEDIA INCLUDIING ADHESIVES

Articles and methods involving filter media are generally provided. In certain embodiments, the filter media includes at least a first layer, a second layer, and an adhesive resin positioned between the first layer and the second layer. In some embodiments, the first layer may be a pre-filter layer or a support layer. The second layer may, for example, comprise fibers formed by a solution spinning process and/or may comprise fine fibers. In some embodiments, the adhesive resin may be present in a relatively low amount and/or may have a low glass transition temperature. The filter media as a whole may have one or more advantageous properties, including one or more of a high stiffness, a high bond strength between the first layer and the second layer, a high gamma, and/or a low increase in air resistance after being subjected to an IPA vapor discharge. The filter media may be, for example, a HEPA filter and/or an ULPA filter. 1. A filter media , comprising:a first layer;a second layer, wherein the second layer is formed of fibers having an average fiber diameter of less than 1 micron; andan adhesive between the first layer and the second layer, wherein the first layer is bonded to the second layer by the adhesive,wherein the filter media has a stiffness of greater than or equal to 200 mg,{'sup': '2', 'wherein a bond strength between the first and second layers is greater than or equal to 150 g/in,'}wherein the filter media exhibits a gamma value of greater than or equal to 18 at the most penetrating particle size.2. A filter media , comprising:a first layer;a second layer, wherein the second layer is formed of fibers having an average fiber diameter of less than 1 micron; andan adhesive between the first layer and the second layer, wherein the first layer is bonded to the second layer by the adhesive,wherein the adhesive comprises a solvent-based resin comprising a polymer having a glass transition temperature of less than or equal to 24° C.3. A method of fabricating ...

PROCESS FOR TREATING A GAS CONTAMINATED BY METALS OR ORGANICS COMPOUNDS USING A CALCIUM-PHOSPHATE REACTANT COMPRISING APATITE

Process for treating a gas contaminated by at least one element selected from the group consisting of heavy metals, organic compounds, and combinations thereof, wherein a calcium-phosphate reactant (reagent) particle comprising apatite is brought into contact with the contaminated gas at a temperature of at least 30° C. and preferably at most 1100° C. The metal(s) and/or organic compound(s) to be removed from the contaminated gas may be selected among the list of: Al, Ag, As, Ba, Be, Bi, Ce, Co, Cd, Cu, Cr, Fe, Hf, Hg, La, Li, Mg, Mn, Mo, Ni, Pb, Pd, Rb, Sb, Se, Sn, Sr, Th, Ti, U, V, Y, Zn, Zr, VOC, aromatic compounds, PAHs, dioxins, furans, or any mixture thereof. In such process, an alkaline compound particle comprising sodium bicarbonate, sodium carbonate, sodium sesquicarbonate (trona), quick lime, hydrated lime, lime stone or combinations thereof, may be further brought into contact with the contaminated gas. 1. A process for treating a gas stream contaminated by at least one element , said gas stream presenting peaks of concentration of the at least one element in the gas stream versus time , wherein the at least one element is selected from the group consisting of metals , organic compounds , and combinations thereof ,according to which a particulate calcium-phosphate reactant comprising apatite is brought into contact with the contaminated gas stream at a temperature of at least 30° C. and preferably at most 1100° C., (a) measuring the at least one element concentration in the contaminated gas stream,', '(b) injecting in the contaminated gas stream an alkaline compound particle selected from the group consisting of sodium bicarbonate, sodium carbonate, trona, quick lime, hydrated lime, lime stone and any mixture thereof,', '(c) injecting the calcium-phosphate reactant at a given flow-rate in the contaminated gas stream,', '(d) removing the calcium-phosphate reactant and the at least one alkaline compound that have been in contact with the contaminated gas ...

Method for Retrovirus Removal

A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism retention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat. 1. A porous nanofiber filtration medium for removing retroviruses from a liquid sample , resulting in the full retention of retroviruses , comprising:a porous nanofiber filtration medium having a retrovirus Log Reduction Value (LRV) greater than about 6, a porosity from about 80% to about 95%, and a liquid permeability greater than about 100 LMH/psi,wherein the nanofiber has a fiber diameter from about 10 nm to about 100 nm.2. The medium of claim 1 , further comprising a mean flow bubble point claim 1 , as tested with isopropanol claim 1 , from about 100 to about 150 psi.3. The medium of claim 1 , having a thickness from about 1 um to about 500 um.4. The medium of claim 1 , having a thickness from about 1 um to about 50 um.5. The medium of claim 1 , formed by a process selected from the group consisting of electrospinning and electroblowing.6. The medium of claim 1 , wherein the retrovirus is Human Immunodeficiency Virus (HIV).7. The medium of claim 1 , wherein the retrovirus is Human T-cell leukemia virus (HTLV).8. The medium of claim 1 , wherein the nanofiber comprises a polymer selected from the group consisting of polyimide claim 1 , aliphatic polyamide claim 1 , aromatic polyamide claim 1 , polysulfone claim 1 , cellulose acetate claim 1 , polyether sulfone claim 1 , polyurethane claim 1 , poly(urea urethane) claim 1 , polybenzimidazole claim 1 , polyetherimide claim 1 , polyacrylonitrile claim 1 , poly(ethylene ...

MULTI-LAYER FILTER FABRIC

A multi-layer filter fabric includes a first layer that includes a first non-woven fabric and a second layer that includes a second non-woven fabric. Each layer may include multiple webs. The first and second layers have different median pores sizes and porosities, with the first layer having a larger median pore size and/or porosity than the second layer. The first and second layers may be separated by a scrim. The first and second layers are colored or have visible markings such that the first and second layers are readily distinguished from each other. The multi-layer filter fabric is arranged so that a fluid may enter the multi-layer filter fabric through the first layer and exit through the second layer. 1. A multi-layer filter fabric , comprising a first layer including a first non-woven fabric and a second layer including a second non-woven fabric , said first layer having a first plurality of pores , said second layer having a second plurality of pores , said first plurality of pores having a first median pore size , said second plurality of pores having a second median pore size , wherein said first median pore size is greater than said second median pore size.2. The multi-layer filter fabric of claim 1 , wherein said first layer has a first porosity claim 1 , said second layer has a second porosity claim 1 , and said first porosity is greater than said second porosity.3. The multi-layer fabric of claim 1 , wherein said first layer includes a plurality of first webs claim 1 , and at least one of said first webs includes said first non-woven fabric.4. The multi-layer fabric of claim 1 , wherein said second layer includes a plurality of second webs claim 1 , and at least one of said second webs includes said second non-woven fabric.5. The multi-layer filter fabric of claim 1 , wherein said multi-layer filter fabric is arranged so that a fluid enters said multi-layer filter fabric through said first layer claim 1 , and exits said multi-layer filter fabric ...

POLYMER NONWOVEN NANOWEB HAVING IONIC FUNCTIONAL GROUP AND RESPIRATOR MASK COMPRISING THE SAME

Polymer nonwoven nanoweb containing ionic functional group and respiratory mask including the same are provided. The polymeric nonwoven web comprises polymer fibers having a diameter in the nanometer range and having a polymer with an ionic functional group in its main chain or side chain. The ionic functional group may be a sulfonate group, an ammonium group, an azanide group, a phosphonate group, a phosphate group, or a zwitterion group having two of these ionic functional groups linked. The polymeric nonwoven web may further comprise a counter ion having a charge of opposite sign to the charge of the ionic functional group, such as Ag or I. 1. A polymeric nonwoven web comprising:polymer fibers having a diameter in the nanometer range and having a polymer with an ionic functional group in its main chain or side chain.2. The polymeric nonwoven web of claim 1 ,wherein the ionic functional group includes a sulfonate group, an ammonium group, an azanide group, a phosphate group, or a zwitterion group having two of these linked.3. The polymeric nonwoven web of claim 2 ,wherein the ammonium group is a quaternary ammonium group.4. The polymeric nonwoven web of claim 2 ,wherein the ionic functional group including the azanide group is a sulfadiazinyl group.5. The polymeric nonwoven web of claim 2 ,wherein the ionic functional group including the zwitterion group is a phosphorylcholine group.6. The polymeric nonwoven web of claim 1 , further comprising:{'sup': +', '−, 'Agor I as a counter ion having a charge of opposite sign to the charge of the ionic functional group.'}7. The polymeric nonwoven web of claim 1 ,wherein the polymer is polystyrene, polymethyl methacrylate, polyarylene ether, polyurethane or a copolymer of two or more thereof.8. The polymeric nonwoven web of claim 1 ,wherein the polymer is a copolymer of a monomer unit having the ionic functional group and a monomer unit having no ionic functional group.9. The polymeric nonwoven web of claim 8 ,wherein the ...

A WASHING APPARATUS FOR 3D-PRINTED ARTICLES

A washing apparatus for a 3D-printed article is provided for the removal of support material from the article. The apparatus includes a glove isolation cabinet with a liquid-discharging nozzle to enable an operator to spray an article with a washing liquid, and a drain. A first filter arrangement receives liquid discharged from the cabinet. The washing liquid drains through the first filter arrangement under the influence of gravity but the first filter arrangement is located in a trough in which washing liquid that has passed through the first filter arrangement accumulates whereby, in use, one or more filters of the first filter arrangement are submerged to ensure filtered-out residue remains submerged in the washing liquid. A pump is provided to pump liquid that has passed through the first filter arrangement through a second filter arrangement adapted to filter out solid material equal to or greater than 5 μm in size. 1. A washing apparatus for a 3D-printed article for removing support material from the article comprising:a glove isolation cabinet provided with a liquid-discharging nozzle to enable an operator to spray an article located in the cabinet with a washing liquid and a drain;a first filter arrangement that receives washing liquid discharged from the cabinet via the drain and through which the washing liquid drains under the influence of gravity;a first pump; anda second filter arrangement comprising at least one filter cartridge through which liquid that has passed through the first filter arrangement is pumped by the first pump;characterised in that the first filter arrangement is located in a trough in which washing liquid that has passed through the first filter arrangement accumulates whereby, in use, one or more filters of the filter arrangement are submerged to ensure filtered-out residue remains submerged in the washing liquid.2. A washing apparatus as claimed in claim 1 , wherein said at least one filter cartridge is adapted to filter out ...

INTERNAL COMBUSTION ENGINE

An internal combustion engine including a urea-water solution injection in the exhaust system, includes at least one urea-water solution tank, at least one pump, at least one intake line leading to the pump, at least one urea-water solution metering valve which is connected to the pump with the aid of a pressure line, and at least one return line which leads from the pump to the urea-water solution tank and at whose end opposite to the pump a filter element is situated, as well as at least one urea-water solution sensor situated in the urea-water solution tank. 110-. (canceled)11: An internal combustion engine including a urea-water solution injection in an exhaust system , the internal combustion engine comprising:a urea-water solution tank;a pump;an intake line leading to the pump;a urea-water solution metering valve connected to the pump via a pressure line;a return line leading from the pump to the urea-water solution tank;a filter situated at an end of the return line opposite to the pump; anda urea-water solution sensor situated in the urea-water solution tank.12: The internal combustion engine as recited in claim 11 , wherein the filter is a precoat filter or a cartridge filter claim 11 , or a spatial filter claim 11 , or a multi-layer bed filter claim 11 , or a magnetic filter.13: The internal combustion engine as recited in wherein the filter includes flexible filter media claim 11 , rigid filter media or packed beds.14: The internal combustion engine as recited in wherein a filter material of the filter is a strainer claim 11 , a paper filter claim 11 , a glass fiber mat claim 11 , a ceramic claim 11 , a sintered metal or a needle felt.15: The internal combustion engine as recited in wherein a pore size of the filter is smaller than 70 micrometers.16: The internal combustion engine as recited in wherein the filter is a two-dimensional filter claim 11 , a three-dimensional filter claim 11 , a multilayer filter claim 11 , a surface filter or a depth filter. ...

RETAINING MATERIAL FOR POLLUTION CONTROL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND POLLUTION CONTROL DEVICE

A retaining material that can sufficiently maintain the function of retaining a pollution control element in a pollution control device at high temperature. In one aspect, the retaining material has a mat shape and contains inorganic fiber material, with the retaining material containing: a surface layer containing inorganic colloid particles; and an internal region positioned further to the inside than the surface layer, impregnated with inorganic colloid particles and organic binder; wherein the surface layer contains inorganic colloid particles at a higher concentration than the internal region; and the amount of inorganic colloid particles in the internal region is 1 mass % to 10 mass % based on the total mass of the retaining material. 1. A method for manufacturing a retaining material , comprising:a step of impregnating a first liquid containing inorganic colloid particles and an organic binder into a sheet including an inorganic fiber material so that inorganic colloid particles are essentially uniformly dispersed in the thickness direction of the sheet and organic binder is essentially uniformly dispersed in the thickness direction of the sheet;a step of drying the sheet impregnated with the first liquid; anda step of forming a surface layer by coating a surface of the sheet with a second liquid containing inorganic colloid particles.2. The method according to claim 1 , wherein the second liquid is coated respectively onto opposite surfaces of the sheet.3. The method according to claim 1 , wherein the composition of the first liquid is adjusted such that the amount of inorganic colloid particles in an internal region of the sheet positioned further to the inside than the surface layer is 1 mass % to 10 mass % based on the total mass of the internal region.4. The method according to claim 1 , wherein the composition of the second liquid and the amount of coating of the second liquid are adjusted such that the amount of inorganic colloid particles per unit ...

Solution-Spun Polyamide Nanofiber Nonwovens

A polymer, applications thereof, and method of making a nanofiber nonwoven product is disclosed which includes: providing a spinnable polyamide polymer composition comprising a solution of a polyamide in a suitable solvent, wherein the polyamide has a Relative Viscosity of from 30-300; a basis weight greater than 1 gm/m, solution-spinning the polyamide polymer composition into a plurality of nanofibers having an average fiber diameter of less than 1 micron (1000 nanometers); and forming the nanofibers into said nonwoven product which thereby has an average nanofiber diameter of less than 1 micron (1000 nanometers). Preferably, the nonwoven product is solution-spun from a process selected from (i) centrifugal spinning using a rotating spinneret or (ii) 2-phase propellant-gas spinning including extruding the polyamide polymer composition in liquid form with pressurized gas through a fiber-forming channel. Suitable solvents include formic acid, sulfuric acid, trifluoroacetic acid, hexafluoroisopropanol (HFIP) and phenols including m-cresol. 1. A nanofiber nonwoven product comprising a polyamide with a Relative Viscosity of from 30-300 spun into nanofibers with an average diameter of less than 1000 nanometers , a basis weight greater than 1 gm/m , and formed into said nonwoven product.2. The nanofiber nonwoven product according to claim 1 , wherein said polyamide is Nylon 6 claim 1 ,6.3. The nanofiber nonwoven product according to claim 1 , wherein said polyamide is a copolymer claim 1 , blend or alloy of Nylon 6 claim 1 ,6 and Nylon 6.4. (canceled)5. (canceled)6. The nanofiber nonwoven product according to claim 1 , wherein the nanofiber nonwoven product has a 5 GSM Normalized Air Permeability Value of less than 10 CFM/ft.7. (canceled)8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. The nanofiber nonwoven product of claim 1 , wherein the polyamide has a Relative Viscosity of from 40-52.5.14. (canceled)15. (canceled)16. The nanofiber nonwoven ...

FILTERING PIPE SMOKE

A smoking pipe has a a combustion bowl, a mouthpiece, and an inhalation conduit. An inhalation check valve is connected to the inhalation conduit and positioned between the bowl and the mouthpiece, oriented to pass smoke of combustion in one direction from the bowl to the mouthpiece. An exhalation check valve is positioned between the mouthpiece and the atmosphere, and is oriented to pass exhalation in one direction from the mouthpiece to the atmosphere. A body is partially fillable to retain water, and the inhalation conduit passes from the bowl into the body and extends to an upper area inside the body, and then turns to extend towards a lower area inside the body, terminating in an open end. The inhalation conduit has a second portion that has an opening in the upper inner area and extends to the inhalation check valve. 1. A pipe for smoking , comprising:a combustion bowl;a mouthpiece;an inhalation conduit;an inhalation check valve connected to the inhalation conduit and positioned between the bowl and the mouthpiece and oriented to pass smoke of combustion in one direction from the bowl to the mouthpiece; andan exhalation check valve positioned between the mouthpiece and the atmosphere and oriented to pass exhalation in one direction from the mouthpiece to the atmosphere.2. The pipe of claim 1 , further including an exhaust filter connected to the exhalation check valve and having a chamber containing a filter material interposed between the exhalation check valve and an exhaust.3. The pipe of claim 2 , wherein the filter material includes activated carbon.4. The pipe of claim 2 , wherein the chamber has an opening through which filter material may be inserted into the chamber.5. The pipe of claim 1 , wherein the exhaust filter is connected to the exhalation valve by an elongate conduit.6. The pipe of claim 1 , wherein the mouthpiece includes a chamber connected to the inhalation check valve and the exhalation check valve on a first end claim 1 , and passage ...

HIGH EFFICIENCY SYNTHETIC FILTER MEDIA

The present invention is generally related to a high capacity, high efficiency nonwoven filtration media comprising a gradient pore structure. In particular, the filtration media can comprise thermoplastic synthetic microfibers, fibrillated fibers, staple fibers, and a binder. Furthermore, the filtration media may be produced without the use of glass fibers or microglass fibers. Consequently, the filtration media of the present invention does not cause the same issues as conventional filtration media that comprises glass fibers and/or microglass fibers. Moreover, the filtration media can be used to treat fuel, lubrication fluids, hydraulic fluids, and various other industrial gases. 1. A nonwoven filter media comprising a primary layer , wherein said primary layer comprises:(a) a synthetic microfiber;(b) a fibrillated cellulosic fiber; and(c) a monocomponent staple fiber comprising at least one of (i) a lobed-shaped fiber, (ii) a bent fiber having an average effective length that is not more than 75 percent of the actual length, and (iii) a bent lobed-shaped fiber having an average effective length that is not more than 75 percent of the actual length.2. The nonwoven filter media of claim 1 , wherein said primary layer comprises less than 5 weight percent of an inorganic fiber.3. The nonwoven filter media of claim 1 , wherein said primary layer comprises less than 1.5 weight percent of a glass fiber and/or a microglass fiber.4. The nonwoven filter media of claim 1 , wherein said monocomponent staple fiber comprises said bent lobed-shaped fiber.5. The nonwoven filter media of claim 1 , wherein said primary layer comprises at least 5 weight percent and not more than 80 weight percent of said synthetic microfiber.6. The nonwoven filter media of claim 1 , wherein said primary layer comprises at least 0.5 and not more than 50 weight percent of said fibrillated cellulosic fiber.7. The nonwoven filter media of claim 1 , wherein said primary layer comprises at least 5 and ...

ACTIVATED CARBON FIBER FILTER MEDIA LAMINATE

In one example, a filter media laminate is provided that includes a first non-woven layer, a second non-woven layer, and an activated carbon fiber (ACF) layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form the laminate. 1. A filter medium , comprising:a first non-woven layer;a second non-woven layer; andan ACF layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form a laminate.2. The filter medium as recited in claim 1 , wherein one of the non-woven layers has a permeability that is about the same as claim 1 , or greater than claim 1 , a permeability of the ACF layer.3. The filter medium as recited in claim 1 , wherein one of the non-woven layers has first and second sides claim 1 , and one of the first and second sides has an adhesive disposed thereon.4. The filter medium as recited in claim 3 , wherein the adhesive is a heat-activated adhesive.5. The filter medium as recited in claim 3 , wherein the adhesive is a dispersed polyethylene binder.6. The filter medium as recited in claim 3 , wherein the first non-woven layer has a length that is greater than a length of the second non-woven layer.7. The filter medium as recited in claim 3 , wherein the adhesive has a melting point that is lower than a melting point of the non-woven layer.8. The filter medium as recited in claim 1 , wherein one of the non-woven layers substantially comprises polyester.9. The filter medium as recited in claim 1 , wherein the first non-woven layer and the second non-woven layer cooperatively define first and second wings claim 1 , each of the wings being disposed proximate a respective edge of the ACF layer.10. A filter medium claim 1 , comprising:a first non-woven layer having first and second sides and ...

FILTER MEDIA INCLUDING FINE STAPLE FIBERS

Filter media comprising fine staple fibers and related components, systems, and methods associated therewith are provided. In some embodiments, a filter media may include a layer (e.g., a wet laid layer) comprising polymeric staple fibers having a relatively small average diameter (e.g., less than or equal to about 1 micron). The polymeric staple fiber layer may be designed to impart desirable properties to the filter media, such as a high particulate efficiency and/or fluid separation efficiency, while having relatively minimal or no adverse effects on one or more properties of the filter media that are important for a given application. The filter media, described herein, may be particularly well-suited for a variety of applications. 1. A filter media comprising:a first layer comprising a first plurality of polymeric staple fibers having an average fiber diameter of less than or equal to about 3 microns and an average length of less than or equal to about 10 cm;a second layer comprising fibers having an average fiber diameter of greater than or equal to about 4 microns; anda third layer, wherein the third layer is a non-wetlaid layer,wherein at least one surface of the first, second, and third layers is surface modified, and{'sup': 2', '2, 'wherein the filter media has an air permeability between 0.3 CFM and 300 CFM and a basis weight of between 5 g/mand 1,000 g/m.'}2. A filter media comprising:a modified layer comprising a first plurality of polymeric staple fibers having an average fiber diameter of less than or equal to about 1 micron and an average length of less than or equal to about 10 cm, wherein the thickness of the first layer is less than or equal to about 0.2 mm; anda second layer comprising fibers having an average fiber diameter of greater than or equal to about 4 microns, wherein the filter media has a dry Mullen burst strength between 0.5 psi and 200 psi.3. A filter media comprising:a modified layer comprising a first plurality of polymeric staple ...

WOVEN GEOTEXTILE FILTRATION FABRICS INCLUDING CORE-SHEATH SPUN YARNS

Disclosed are exemplary embodiments of woven filtration fabrics that include core-sheath spun yarns in either or both of the warp and weft directions. 1. A woven geotextile filtration fabric comprising core-sheath spun yarn in at least one of the warp and weft directions.2. The woven geotextile filtration fabric of claim 1 , wherein the woven geotextile filtration fabric comprises:core-sheath spun yarn in the warp direction and monofilament yarn in the weft direction; orcore-sheath spun yarn in the warp direction and multifilament yarn in the weft direction; orcore-sheath spun yarn in the warp direction and core-sheath spun yarn in the weft direction; ormonofilament yarn in the warp direction and core-sheath spun yarn in the weft direction; ormultifilament yarn in the warp direction and core-sheath spun yarn in the weft direction.3. The woven geotextile filtration fabric of claim 1 , wherein the woven geotextile filtration fabric consists of only:core-sheath spun yarn in the warp direction and monofilament yarn in the weft direction; orcore-sheath spun yarn in the warp direction and multifilament yarn in the weft direction; orcore-sheath spun yarn in the warp direction and core-sheath spun yarn in the weft direction; ormonofilament yarn in the warp direction and core-sheath spun yarn in the weft direction; ormultifilament yarn in the warp direction and core-sheath spun yarn in the weft direction.4. The woven geotextile filtration fabric of claim 1 , wherein the core-sheath spun yarn comprises a polypropylene core and/or a polypropylene fiber sheath.5. The woven geotextile filtration fabric of claim 4 , wherein:the polypropylene core has a denier of about 1100 or about 1800 and a round cross section; and/orthe polypropylene fiber sheath has a denier about 1100 or about 1600 and a round cross section.6. The woven geotextile filtration fabric of claim 1 , wherein the woven geotextile filtration fabric comprises:core-sheath spun yarn in the weft direction comprising a ...

Belt edge

The present invention relates to a belt comprising a warp yarn and a weft yarn, wherein the belt comprises a fused region along each longitudinal edge of the belt, said fused region being formed from the warp yarn, the weft yarn and a yarn provided for fusing the warp yarn and the weft yarn together.

Membrane-like filter element for chemical mechanical polishing slurries

A filter media for physically separating agglomerations of abrasive particles from a chemical-mechanical polishing (CMP) process slurry stream. The media is provided as being formed of at least one fabric sheet having a first and second surface defining a first thickness dimension of the sheet therebetween, with the fabric being woven of polymeric monofilament fibers. In service, the slurry stream is supplied to the first side of the filter media, and is passed through the media to the second side thereof such that at least a substantial portion of the agglomerations of abrasive particles are retained on the first side of the media.

Assembly type controllable fiber filter

PURPOSE: An assembled fiber media filter is provided to form a filter with a plastic material by forming a coaxial strainer and a cylindrical filter tank as a spare part. CONSTITUTION: An assembled fiber media filter comprises the following: a fiber media(3) in which an air gap is controlled inside of a cylindrical filter tank(1); and a coaxial strainer(2) surrounded with the fiber media. The cylindrical filter tank is formed by equally dividing a cylinder into the length and circumference direction, forming unit assembly pieces, and flange combining each assembly pieces. The unit assembly pieces is formed with a transparent plastic material while including reinforcement ribs to enhance the internal force toward water pressure.

Porous substrates, articles, systems and compositions comprising nanofibers and methods of their use and production

Porous and/or curved nanofiber bearing substrate materials are provided having enhanced surface area for a variety of applications including as electrical substrates, semipermeable membranes and barriers, structural lattices for tissue culturing and for composite materials, production of long unbranched nanofibers, and the like.

가스터빈 및 압축기 유입공기 정화용 심층여과 에어필터 여재 및 이를 사용한 심층여과 에어필터 카트리지

본 발명은 가스터빈 및 압축기 유입공기 정화용 심층여과 에어필터 여재 및 이를 사용한 심층여과 에어필터 카트리지에 관한 것으로, 그 목적은 가스터빈 및 압축기 유입공기 정화용 심층여과 에어필터 카트리지를 위한 압력손실이 낮게 유지되고, 탈진조작이 필요 없고, 에어 필터 여재의 공극크기 변화가 없는 심층여과용 에어필터 여재 및 이를 사용한 심층여과용 에어필터 카트리지를 제공하는데 있다. 본 발명의 심층여과 에어필터 여재는 멀티 층을 포함하는 탈진조작이 필요 없는 심층여과에 관한 것으로 정전 멜트블로운, 정전 단 섬유, 서멀본드로 이루어진 절곡 가능한 압력손실이 낮고, 먼지 등 먼지 등 입자상물질 포집성능이 우수하며 단위면적당 먼지 누적포집량(dust holding capacity)이 크며, 우수한 발수성과 내수성을 갖는다.

深层过滤型空气过滤介质及深层过滤型空气滤筒

本发明公开了一种用于净化燃气轮机入口空气和压缩机入口空气的深层过滤型空气过滤介质，该空气过滤介质包括：第一层，该第一层由细度为0.5-6旦的静电纤维无纺布和纺黏支撑层形成，用来收集大的颗粒；中间层，该中间层由细度为6-20旦的合成纤维制成的热轧无纺布形成，用来增大容尘量；可弯曲的最终层，该可弯曲的最终层由细度为0.07-0.9旦的超细静电熔喷织物形成，使颗粒(如细灰尘等)成团，从而防止压降升高并增大容尘量。所述深层过滤型空气过滤介质的优点在于它的压降维持较低，不需要滤筒清洁过程，具有高的容尘量，且具有很好的防水性和抗水性。

Method for retrovirus removal

액체 샘플로부터 레트로바이러스를 제거하는 방법 및 높은 액체 투과도와 높은 미생물 보유성을 동시에 나타내는 액체 여과 매질을 함유하는 나노섬유가 개시되어 있다. 상기 레트로바이러스는 약 6보다 큰 레트로바이러스 LRV를 갖는 여과 매질을 함유하는 다공성 나노섬유를 통하여 액체를 통과시키는 것에 의해 액체로부터 제거되며, 상기 나노섬유(들)은 약 10 nm 내지 약 100 nm의 직경을 갖는다. 상기 여과 매질은 섬유성 전기방사 중합체성 나노섬유 액체 여과매질 매트 형태일 수 있다. Disclosed are nanofibers containing a liquid filtration medium that simultaneously exhibits both high liquid permeability and high microbial retention, as well as methods of removing retroviruses from liquid samples. Wherein the retrovirus is removed from the liquid by passing the liquid through porous nanofibers containing a filtration medium having a retroviral LRV greater than about 6, the nanofiber (s) having a diameter of about 10 nm to about 100 nm Respectively. The filtration media may be in the form of a fibrous electrospun polymeric nanofiber liquid filtration media mat.

Manufacturing method and manufacturing apparatus of spunbond nonwoven fabric

본 발명의 스펀본드 부직포의 제조 방법은 방사구금으로부터 토출시킨 연속 섬유군을 직사각형 이젝터에 의해 세화 연신시켜서 부직포 형상으로 포집시키는 스펀본드 부직포의 제조 방법으로서, 직사각형 이젝터의 분사구 부분에 분사구의 장변방향으로 연속하여 대향하는 한 쌍의 슬릿폭 규정부를 갖고, 슬릿폭 규정부의 적어도 한쪽이 분사구의 장변방향으로 연속한 일체물로 이루어지는 슬릿폭 규정 부재이며, 슬릿폭 규정 부재의 장변방향으로 슬릿폭 규정 부재를 미소 변형시키는 미소 변형 수단이 복수 배치되어 있고, 선행되어 포집된 부직포의 폭방향의 단위면적당 질량 분포를 측정하고, 그 측정값에 의거하여 슬릿폭 규정 부재를 미소 변형 수단에 의해 부분적으로 미소 변형시키고, 그 미소 변형에 의해 분사구의 슬릿폭을 부분적으로 변동시켜서 단위면적당 질량 분포의 조정을 행하는 것을 특징으로 하는 스펀본드 부직포의 제조 방법이다. The method for producing a spunbond nonwoven fabric of the present invention is a method for producing a spunbond nonwoven fabric in which a group of continuous fibers discharged from a spinneret is finely drawn and drawn by a rectangular ejector to collect it in a nonwoven shape, A slit width regulating member having a pair of successively opposed slit width regulating parts, at least one of the slit width regulating parts is a slit width regulating member consisting of an integral body continuous in the longitudinal direction of the jetting port, A plurality of micro-deformation means for micro-straining are arranged, and the mass distribution per unit area in the width direction of the previously collected nonwoven fabric is measured, and based on the measured value, the slit width regulating member is partially micro-deformed by the micro-deformation means, , is a method for producing a spunbond nonwoven fabric characterized by adjusting the mass distribution per unit area by partially varying the slit width of the injection port by its micro-deformation.

Filters employing particulate porous polymers

Novel filters are prepared, and filtrations are performed, using porous fibers and filaments which are comprised of normally solid, thermoplastic, orientable, organic polymers which have reactive or reactable groups pendent from the polymer chain, said polymers being made using a process which involves reactions of said pendent groups while the polymer is in an oriented condition. One of the preferred polymers is a copolymer of ethylene/acrylic acid. Ionomers of the polymers can be used.

Woven geotextile filtration fabrics including core-sheath spun yarns

Disclosed are exemplary embodiments of woven filtration fabrics that include core-sheath spun yarns in either or both of the warp and weft directions.

Porous composite materials comprising a plurality of bonded fiber component structures

An integrally formed multi-component structure is disclosed, the multi-component structure comprising a plurality of components, at least one of which is a three-dimensional bonded fiber fluid transmissive component comprised of a plurality of polymeric fibers bonded to each other at spaced apart contact points, the fibers collectively defining tortuous fluid flow paths, and wherein each component has an interface with at least one other component.

THIN FIBERS RECEIVED BY SEWING AT ROOM TEMPERATURE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 137 905 A (51) МПК B01D 39/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018137905, 06.04.2017 (71) Заявитель(и): ДОНАЛЬДСОН КОМПАНИ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ШЕНОЙ Суреш Лаксман (US) 06.04.2016 US 62/318,951 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 06.11.2018 R U (43) Дата публикации заявки: 12.05.2020 Бюл. № 14 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/177033 (12.10.2017) R U (54) ТОНКИЕ ВОЛОКНА, ПОЛУЧЕННЫЕ ПУТЕМ СШИВАНИЯ ПРИ КОМНАТНОЙ ТЕМПЕРАТУРЕ (57) Формула изобретения 1. Способ получения тонкого волокна, причем способ включает: обеспечение полимерного компонента, где полимерный компонент содержит полимер, содержащий 4-винилпиридин; обеспечение растворителя, который не образует комплекс с 4-винилпиридином; обеспечение эпоксида, где эпоксид является по меньшей мере дифункциональным; и объединение полимерного компонента, растворителя и эпоксида с образованием композиции и образование множества волокон из композиции таким образом, чтобы полный объем каждого волокна был получен из композиции. 2. Способ получения тонкого волокна, причем способ включает: обеспечение полимерного компонента, где полимерный компонент содержит полимер, содержащий 4-винилпиридин; обеспечение растворителя; обеспечение эпоксида, где эпоксид является по меньшей мере дифункциональным; и объединение полимерного компонента, растворителя и эпоксида с образованием композиции и образование множества волокон из композиции таким образом, чтобы полный объем каждого волокна был получен из композиции без повышения температуры композиции выше 80°С. 3. Способ по п. 2, где полимерный компонент, растворитель и эпоксид объединяют при комнатной температуре и образуют множество волокон без повышения температуры Стр.: 1 A 2 0 1 8 1 3 7 9 0 5 A Адрес для переписки: 119019, Москва, ул. Гоголевский бульвар, 11 2 0 1 8 1 3 7 9 0 5 ...

Corrugated nonwoven webs of polymeric microfiber

PURPOSE: A composite structure containing a corrugated, nonwoven web of polymeric microfiber, a fibrous-filtration-face-mask (hereinafter face mask) having a corrugated filtration layer, a thermal insulation including a corrugated, nonwoven web of polymeric microfiber, a filter for removing particulate and gaseous contaminants from a fluid, a method of making a corrugated, nonwoven web of polymeric microfiber, and a corrugating apparatus are provided. CONSTITUTION: The apparel(10) having a thermal insulation secured thereto where the thermal insulation comprises a corrugated nonwoven web(12) and a means(16) for retaining the corrugated shape of the corrugated nonwoven web; the corrugated nonwoven web having a solidity of 0.1 or less and containing microfiber and crimped staple fibers that have a percent crimp of at least fifteen percent, the shape-retaining means being secured to valleys(20) of the corrugations in the corrugated nonwoven web such that the shape-retaining means is not coextensive with the corrugated nonwoven web. The apparel having a thermal insulation secured thereto where the thermal insulation comprises a corrugated nonwoven web and a member that is capable of retaining the corrugated shape of the corrugated nonwoven web; the corrugated nonwoven web having a solidity of 0.1 or less and containing microfiber and crimped staple fibers that have a percent crimp of at least fifteen percent, the member being secured to valleys of the corrugations in the corrugated nonwoven web such that the shape-retaining member is not coextensive with the corrugated nonwoven web.

Corrugated nonwoven web of polymer microfibers

본 발명은 직물을 파형의 밸리(valley)에서 파형 웹에 고정시킴으ㄹ써 파형 형성된 상태로 유지되는 중합체 미세섬유의 로프트한 파형 부직웹을 함유하는 복합 구조물에 관한 것이다. 본 발명은 또한 (ⅰ) 부직웹을 다수의이격된 패들의 단부에 도입시키고, (ⅱ) 패들의 단부사이의 간격을 감소시켜 부직 웹을 파형 형성시키고 (ⅲ) 직물을 파형의 밸리에서 파형 부직 웹에 고정시킴으로써 웹로프트(loft)에 실질적으로 손상을 주지 않고 상기 복합 구조물을 제조하는 방법을 제공한다. 이러한 방법에 의해서 제조된 복합 구조물은 컵 형상의 안면 마스크에 필터로서 사용하기에 특히 적합한, 매우 양호한 여과능을 제공한다. 이러한 복합 구조물은 또한 의복 중에 단열재로서 사용하기에도 매우 적합하다.

Process for utilizing a high efficiency synthetic filter media

The present invention is generally related to a high capacity, high efficiency nonwoven filtration media comprising a gradient pore structure. In particular, the filtration media can comprise thermoplastic synthetic microfibers, fibrillated fibers, staple fibers, and a binder. Furthermore, the filtration media may be produced without the use of glass fibers or microglass fibers. A process for making the filtration media is also provided. Consequently, the filtration media of the present invention does not cause the same issues as conventional filtration media that comprises glass fibers and/or microglass fibers. Moreover, the filtration media can be used to treat fuel, lubrication fluids, hydraulic fluids, and various other industrial gases.

Pivoting joint infusion system with seal

An infusion system for delivery of therapeutic fluids from a remote source into a patient's body. The system has an infusion assembly, a rotating pivot joint member, a fluid connector assembly, and a sealing assembly retained within the infusion assembly between the housing of the infusion assembly and the rotating pivot joint member. The seal reduces leakage of fluids. The rotating joint may be pivoted to three distinct positions to allow for emplacement on the patient, delivery of the therapeutic fluid to the patient, and protected, sealed closure of the fluid channels to avoid patient fluid backflow.

Ternary denitration sulfur-resistant catalyst in-situ loaded compound filter material and preparation method thereof

本发明公开了一种原位负载三元脱硝抗硫催化剂的复合滤料及其制备方法，其是以聚苯硫醚滤料为催化剂载体，先采用十二烷基硫酸钠对聚苯硫醚针刺毡进行表面改性，使聚苯硫醚滤料活化，然后以高锰酸钾、无水氯化铁和七水合三氯化铈为催化剂前驱体，以去离子水为溶剂，将三元MnO 2 ‑Fe 2 O 3 ‑CeO x 催化剂一步原位负载在经活化处理的聚苯硫醚滤料表面。本发明复合滤料中催化剂与聚苯硫醚纤维结合牢固，低温活性优异，对烟气中的氮氧化物具有优异的脱硝效果，同时还具有很强的抗硫功能，可解决现有技术中尾部净化系统的复杂和高成本等缺点，且其制备工艺简单、环境友好、生产成本低廉，因而具有广阔的应用前景。

The preparation method of the superfine modified glass fiber filter material of fluorine silicon oxygen

本发明适用于除尘过滤材料技术领域，提供一种氟硅氧超细改性玻璃纤维过滤材料的制备方法，解决现有技术中玻璃纤维韧性较差、耐温性、耐磨耐折性，以及对二氧化硫及其他有害气体的抗氧性能较差的技术问题，该制备方法包括以下步骤：酸浸渍、水洗、烘干、高锰酸钾氧化处理、热清洗、化学浸润剂浸渍、烘干制得成品。本发明制备方法生产的产品性能优良，化学稳定性好，耐温度从原始玻璃纤维过滤材料的280℃左右提高到了600℃以上，高强低延、耐磨、耐折及抗酸碱、耐腐蚀性能突出，制得的玻璃纤维材料广泛应用在钢铁、冶炼、水泥、燃煤锅炉、炭黑、电力等行业，氟硅氧超细改性纤维过滤材料的收尘率可达到99.99％，粉尘排放5‑20mg/N·m以下，在国内、国外发展前景十分广阔及巨大的市场潜力。

The ceramic filter composition that can be used under HI high impact

本发明提供一种可在高冲击下使用的陶瓷过滤组合物，至少包括：纤维组分A：金属络合物、溶剂、PVP、纳米钛酸锶；颗粒组分B：铜‑有机配体和二氧化硅的复合物；基本组分C：陶瓷基体；其中，所述金属络合物为金属和配体的络合物，金属选自Bi、Cu、Ni、Ba、Ca中的一种或多种；所述配体选自含有极性基团的芳香类羧酸，所述极性基团为硝基或者氟元素；所述溶剂为水、乙醇按体积比为1：(3‑8)。

Filtering for clean water

본 고안은 각종 오폐수 처리시설의 여과시설이나 고도처리시설의 전처리 여과시설로 사용되는 통상의 여과장치의 여과탱크 내부에 일정수량을 내포하여 유입수에 존재하는 부유물은 물론 BOD 및 COD 성분을 제거할 수 있도록 구성하는 것으로서 일정길이의 미세한 폴리에스테르 섬유사를 다수 나열시킨 다음 고정고리로 중앙부를 묶어 폴리에스테르 섬유사가 하나의 볼형태로 형성되도록 구성시킨 정수용 여과재에 관한 것이다. The present invention can remove BOD and COD as well as suspended solids in the influent by containing a certain amount in the filtration tank of a conventional filtration device used as a filtration facility of various wastewater treatment facilities or a pretreatment filtration facility of an advanced treatment facility. The present invention relates to a filter medium for water purification, in which a plurality of fine polyester fiber yarns of a certain length are arranged, and then a central portion is tied with a fixing ring so that the polyester fiber yarns are formed in a single ball shape. 즉, 다수의 미세한 폴리에스테르 섬유사(11)를 한 방향으로 정렬한 다음 일정거리를 두고 고정고리(12)로 묶은 후 고정고리(12)를 중심으로 양방향으로 일정 거리를 두고 절단하여 고정고리(12)를 중심으로 절단된 폴리에스테르 섬유사(11)의 양측 끝부분이 방사형으로 펼쳐서 고정고리(12)가 외부에서 보이지 않도록 형성된 다수의 미세한 폴리에스테르 섬유사(11)가 알루미늄 재질의 고정고리(12)에 의해 중앙부가 묶여서 끝단부가 방사형으로 분산되어 하나의 볼형태로 형성된 수질정화용 여과재(1)가 구성되도록 한 것을 특징으로 하는 것이다. That is, after aligning a plurality of fine polyester fiber yarns 11 in one direction and tying them with a fixed ring 12 at a certain distance, the fixed ring 12 is cut at a predetermined distance in both directions about the fixed ring 12. 12, a plurality of fine polyester fiber yarns 11 formed at both ends of the polyester fiber yarns 11 that are cut about the radially unfolded so that the fixing ring 12 is not visible from the outside are fixed rings of aluminum material ( It is characterized in that the center portion is bound by the 12) so that the end portion is radially dispersed so that the water purification filter material 1 formed in one ball shape is formed. 여과재, 폴리에스테르 섬유사, 고정고리, 여과장치, 여과탱크, 역세관 Filtration material, polyester fiber yarn, fixing ring, filtration device, filtration tank, backwashing pipe

Water Purifying Filter Having Antibacterial Property Molded with Staple Fibers, and the Method for the Preparation thereof

본 발명은 셀룰로스 아세테이트 단섬유(短纖維), 폴리에스테르 해도형(海島形) 단섬유 및 은-제올라이트 함유 폴리에스테르 단섬유를 혼합 및 타면한 후 금형에서 용융압착하여 성형한 다음 탈형하여 얻은 정수용(淨水用) 필터 및 그 제조방법에 관한 것이다. The present invention is a water purification obtained by melting and pressing in a mold after mixing and crushing cellulose acetate short fibers, polyester islands-in-sea short fibers and silver-zeolite-containing polyester short fibers It relates to a filter and a method of manufacturing the same. 또한 본 발명은 셀룰로스 아세테이트 단섬유, 저융점 폴리에스테르 수지로 코팅된 폴리에스테르 단섬유 및 은-제올라이트 함유 폴리에스테르 단섬유를 혼합 및 타면한 후 금형에서 용융압착하여 성형한 다음 탈형하여 얻은 정수용 필터 및 그 제조방법에 관한 것이다. In addition, the present invention is a filter for water purification obtained by melting and pressing in a mold after mixing and crushing the cellulose acetate short fibers, polyester short fibers coated with a low-melting polyester resin and silver-zeolite-containing polyester short fibers and molding It relates to a manufacturing method. 본 발명의 정수용 필터는 내구성이 뛰어나고 살균성이 우수하며 인체에 유익한 미네랄성분도 제거되지 아니한다. The water filter of the present invention is excellent in durability, excellent sterilization, and does not remove the mineral components beneficial to the human body.

Corrugated non-woven webs of polymeric microfiber

A composite structure contains a lofty corrugated nonwoven web of polymeric microfiber that is maintained in a corrugated condition by securing a fabric to the corrugated web at the valleys of the corrugations. The composite structure is made without substantially effecting web loft by (i) introducing the nonwoven web to the ends of a plurality of spaced paddles, (ii) causing the spacing between the ends of the paddles to decrease to corrugate the nonwoven web, and (iii) securing the fabric to the corrugated nonwoven web at the valleys of the corrugations. A composite structure of this construction made by this method provides very good filtration performance, making it particularly suitable for use as a filter in a cup-shaped face mask. The composite structure also is very suitable for use as thermal insulation in apparel.

Spunbond nonwoven fabric manufacturing method and manufacturing device

This method for manufacturing a spunbond nonwoven fabric is a method in which a continuous fiber group discharged from a spinneret is thinned and drawn by a rectangular ejector and gathered into the form of a nonwoven fabric, wherein the method for manufacturing a spunbond nonwoven fabric is characterized in that: an ejection port portion of the rectangular ejector is provided with a pair of slit width restricting parts, which face each other in continuation in the long-side direction of the ejection port; at least one of the slit width restricting parts is a slit width restricting member comprising an integrated item continuous in the long-side direction of the ejection port; a plurality of minute deformation means for causing the slit width restricting member to minutely deform are disposed in the long-side direction of the slit width restricting member; the basis weight distribution in the width direction of the nonwoven fabric gathered in advance is measured; the slit width restricting member is caused by the minute deformation means to partially minutely deform on the basis of the resulting measurement value; and the slit width of the ejection port is partially varied by the minute deformation to adjust the basis weight distribution.

Filter cloth and method for producing the same

The invention relates to a filter cloth for a filter press and to a method for producing said filter cloth. The inventive filter cloth has a filtration section through which the filtrate reaches a filter element of the filter press, and an edging section which rests against the edge of the filter element. The filtration area is provided with a cloth that differs from that of the edging section. The filtration area is woven from monofil yarns while multifil yarns are woven into the edging section.

The manufacture method and manufacture device of spun-bonded non-woven fabrics

本发明的纺粘无纺布的制造方法的特征在于，其是利用矩形喷射器将从喷丝头排出的连续纤维组进行细化拉伸并以无纺布状捕集的纺粘无纺布的制造方法，其中，矩形喷射器的喷射口部分具有在喷射口的长边方向上连续并相对的一对狭缝宽度规定部，狭缝宽度规定部中的至少一者为由在喷射口的长边方向上连续的整体物形成的狭缝宽度规定部件，在狭缝宽度规定部件的长边方向上配置有多个使狭缝宽度规定部件微量变形的微量变形构件，测定先前所捕集的无纺布在宽度方向上的单位面积重量分布，基于其测定值利用微量变形构件来使狭缝宽度规定部件部分地微量变形，利用该微量变形使得喷射口的狭缝宽度部分地变动，从而进行单位面积重量分布的调节。

Stable electret polymeric articles

A porous polymeric sheet is provided having an electrostatic charge and comprising a zero-three composite of a polymeric matrix and a ferroelectric material dispersed therein. The polymeric component comprises a non-polar thermoplastic polymer, such as a polyolefin, and a second thermoplastic polymer having polar functional units, such as a telomer. The composite material is formed into a porous sheet and is electrically or corona poled to create an electret material which is well suited four use in various filtration, air-masking and dust wipe applications.

Improved method for sealing the edge of a filter medium to a filter assembly and the filter assembly produced thereby

Improved filter assemblies are provided having a pleated filter medium (23) attached to a support frame (20) utilizing an improved manufacturing method employing a welding process to seal the pleated edges of the filter medium to an inwardly protruding sealing means (22) provided on the frame (20) around the inside perimeter thereof, forming a final filter assembly exhibiting an essentially leak-proof edge seal.

Antifungal and antibacterial air filter

Purification method of trace contaminated air in clean room

Rotary type Filtering Plant

본 발명에 따른 회전식 여과장치는 직립된 원통형상의 여과지본체; 방사형으로 설치된 격벽에 의해 다수의 구간으로 분리되며, 상기 여과지본체 내부에 상기 여과지본체의 중심부를 기준으로 정위치 회전가능하게 설치되는 회전여과지; 상기 회전여과지 중 하나의 구간을 상기 회전여과지의 다른 부분과 공간적으로 분리가능하도록 상기 회전여과지 중 하나의 구간에 해당되는 크기로 상기 여과지본체에 고정설치되는 역세척실; 상기 회전여과지를 통과하는 유입수를 여과가능하도록 상기 회전여과지에 설치되며, 상기 회전여과지와 함께 회전이동되면서 상기 역세척실 내, 외부에 교대로 위치하게 되는 섬유사 여재; 상기 역세척실 외부에 위치하는 섬유사 여재의 공극이 축소되도록 상기 섬유사 여재를 수직방향으로 압축하는 압축수단; 상기 역세척실 내부에 위치하는 섬유사 여재의 공극이 확장되도록 상기 섬유사 여재의 압축수단을 수직방향으로 해제시키는 압축해제수단; 및 상기 여과지본체의 수위 측정을 통해 수위가 기준값 이상일 경우만 회전여과지를 회전시켜 구간별 역세공정이 수행되도록 하는 제어부;를 포함하여 구성됨을 특징으로 한다. Rotary filter device according to the present invention is an upright cylindrical filter paper body; A rotary filter which is divided into a plurality of sections by a radially installed partition wall and is rotatably installed in the filter paper body with respect to the center of the filter paper body; A backwashing chamber fixed to the filter paper main body having a size corresponding to one section of the rotary filter paper so as to be spatially separable from the other portion of the rotary filter paper; A fiber yarn filter installed in the rotary filter to filter the inflow water passing through the rotary filter, and alternately positioned inside and outside of the backwashing chamber while being rotated with the rotary filter; Compression means for compressing the fiber yarn media in a vertical direction so that the voids of the fiber yarn media located outside the backwashing chamber are reduced; Decompression means for releasing the compression means of the fiber yarn media in a vertical direction so that the voids of the fiber yarn media located in the backwashing chamber are expanded; And a controller configured to rotate the rotary filter only when the water level is equal to or greater than a reference value by measuring the water level of the filter paper body so that the backwashing process for each section is performed.

Filtration cloth for solid-liquid systems

The invention relates to a solid-liquid filtration cloth comprising a base fabric woven from polymer yarns (1, 2). After the weaving, the base fabric has been treated by a polymer material, which has better electric conductivity than the polymer yarns of the base fabric. The polymer treatment is carried out by means of a polyaniline solution or a polypyrrole solution, for instance. After the polymer treatment, at least the yarns on the surface of the base fabric comprise a coating (3) of an electrically conductive polymer.

Air Filtration Material, Air Filtration Decontamination Device and Manufacturing Process

Matériau filtrant perméable à l’air et imperméable aux excrétions aqueuses liquides humaines buccales, nasales et/ou oculaires comprenant au moins une liasse, dite liasse hydrophobe, d’au moins deux feuillets hydrophobes superposés et formés chacun de papier poreux, de grammage inférieur à 30 g/m2, chaque feuillet hydrophobe étant formé de fibres de cellulose, dites fibres de cellulose réticulées, liées entre elles par des liaisons hydrogène et par des liaisons covalentes formées avec au moins un groupement d’atomes de réticulation,caractérisé en ce qu’au moins une partie des hydroxyles desdites fibres de cellulose réticulées non engagés dans des liaisons hydrogène et accessibles aux gaz forment une liaison covalente avec un groupement acyle à chaîne hydrophobe. Figure d’abrégé : figure 4 Filtering material permeable to air and impermeable to aqueous liquid human oral, nasal and/or ocular excretions comprising at least one bundle, called hydrophobic bundle, of at least two superimposed hydrophobic sheets and each formed of porous paper, of weight less than 30 g/m2, each hydrophobic sheet being formed of cellulose fibers, called crosslinked cellulose fibers, linked together by hydrogen bonds and by covalent bonds formed with at least one group of crosslinking atoms, characterized in that at least a portion of the hydroxyls of said crosslinked cellulose fibers not involved in hydrogen bonds and accessible to gases form a covalent bond with an acyl group with a hydrophobic chain. Abstract Figure: Figure 4

Method and device for removing contaminates from fluid-material

A method for removing contaminants from a fluid-material comprising: providing at least one substrate comprising a three-dimensional knit in an initial configuration made of knitted polymeric fiber which substantially resumes the initial configuration after it is released from stretching or compressing force; and submerging said at least one substrate in a fluidic material for treatment of the fluidic material.

Filter cloth for wet filtration

Tacky allergen trap and filter medium, and method for containing allergens

An allergen trap is provided. The allergen trap includes a woven or nonwoven substrate having at least one strata. The trap is impregnated with or otherwise treated with a tacky adhesive by which allergens may be trapped. An example of an allergen is a dust mite. The tacky adhesive, in turn, may be treated with a miticide or activated carbon.

Separator Support

수지의 코팅면이 되는 표면층, 중간층 및 이면층이 열접착에 의해 일체화된 적층 부직포로 구성되어 있고, 또한, 하기 (1)∼(5) 를 만족하는 것을 특징으로 하는 분리막용 지지체: (1) 표면층이, 섬유 직경 7∼30㎛ 인 열가소성 수지 장섬유의 층을 적어도 한 층 갖는다; (2) 중간층이, 섬유 직경 5㎛ 이하인 멜트 블로우 섬유로 이루어지는 층을 적어도 한 층 갖고, 섬유량이 1g/㎡ 이상이고 또한 전체 섬유량의 30wt% 이하이다; (3) 이면층이, 섬유 직경이 7∼20㎛ 인 열가소성 수지 장섬유로 이루어지는 층을 적어도 한 층 갖고, 섬유량이 3∼40g/㎡ 이다; (4) 적층 부직포의 겉보기 밀도가 0.67∼0.91g/㎤ 이다; (5) 적층 부직포의 두께가 45∼110㎛ 이다. 분리막

Polymer nonwoven nano-net having ionic functional group and respiratory mask comprising the same

提供了一种具有离子官能团的聚合物非织造纳米网以及包括该聚合物非织造纳米网的呼吸口罩。所述聚合物非织造网是由聚合物纤维形成的非织造网，所述聚合物纤维在主链或侧链上具有离子官能团并且具有纳米范围的直径。所述离子官能团可以是包括磺酸盐基团、羧酸盐基团、铵基、胺基、膦酸盐基团、磷酸盐基团或者具有彼此连接的两个上述基团的两性离子基团的离子官能团。所述聚合物非织造网还可以包含作为具有与离子官能团的电荷相反符号的电荷的反离子的Ag + 或I ‑ 。

Fine fibers made from room temperature crosslinking

The present disclosure provides a unique method of making a fine fiber that is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine- containing polymer. The present disclosure also provides a unique method of coating a fine fiber with a composition including an epoxy and a polymer component including a 4-vinyl pyridine- containing polymer. The present disclosure further provides fine fibers wherein the entirety of the fiber is formed from a composition including an epoxy and a polymer component including a 4-vinyl pyridine-containing polymer. Also provided are filter media and filter substrates including the fine fibers.

Tacky allergen trap and filter medium, and method for containing allergens

An allergen trap is provided. The allergen trap includes a woven or nonwoven substrate having at least one strata. The trap is impregnated with or otherwise treated with a tacky adhesive by which allergens may be trapped. An example of an allergen is a dust mite. The tacky adhesive, in turn, may be treated with a miticide or activated carbon.

Fine fibers made from room temperature crosslinking.

La presente descripción proporciona un método único de generación de una fibra fina que se forma a partir de una composición que incluye un componente epoxi y un componente polimérico que incluye un polímero que contiene 4-vinil piridina. La presente descripción también proporciona un método único de recubrimiento de una fibra fina con una composición que incluye un componente epoxi y un componente polimérico que incluye un polímero que contiene 4-vinil piridina. La presente descripción proporciona además fibras finas donde la totalidad de la fibra se forma a partir de una composición que incluye un componente epoxi y un componente polimérico que incluye un polímero que contiene 4-vinil piridina. También se proporcionan medios de filtrado y sustratos de filtrado que incluyen las fibras finas.

Fibrous structures containing immobilized particulate matter

A fibrous structure comprising a composite fiber matrix loaded with immobilized functional particulate and including void spaces forming tortuous flow paths, is provided. The particulate is beneficially distributed in the interior of the fibrous structure in three dimensions and fused to a low melting component of the composite fibers without substantially reducing the available surface area of the particulate. A filtration structure of a composite staple having a nylon sheath and a polyester core, with activated carbon particles bonded to the fiber matrix, and including a microfiber web located within the structure, is specifically disclosed.

Process for making a fibrous structure containing immobilized particulate matter

Fibrous structures containing immobilized particulate matter and processes for making them are disclosed. These structures may be used for filters and for fabrics including chemical defense garments and others. The fibrous structures have webs containing composite fibers having a lower melting component and a higher melting component. The particles are distributed into the interior of the web and fused to the low melting component of the individual fibers without substantially reducing the available surface area of the particle. A fibrous structure of a composite staple having a nylon sheath and a polyester core, with activated carbon particles bonded to the sheath is specifically disclosed. The processes for producing such a fibrous structure include carding a web of staple fibers and distributing particulate matter therein, air laying a web of staple fibers and distributing particulate matter therein, spin bonding a web of continuous filaments and distributing particulate matter therein, and wet forming a web of staple fibers and particulate from a suspension thereof between two wet formed layers of staple fibers. One or more additional layers of nonwoven, woven, or knit webs or fabrics may be bonded thereto.

Belt edge

The present invention relates to a belt comprising a warp yarn and a weft yarn, wherein the belt comprises a fused region along each longitudinal edge of the belt, said fused region being formed from the warp yarn, the weft yarn and a yarn provided for fusing the warp yarn and the weft yarn together.

Filter medium and method for preparing same

This invention provides a filter medium 1 comprising at least 5,000 thermoplastic synthetic resin monofilaments 2 of 0.03 to 0.001 mm in diameter aligned in parallel orderly in a tape-like form, said monofilaments being linked with each other in the longer direction thereof to form a plurality or number of linkage band portions crossing therewith at almost right angles in substantial width direction thereof so as to keep the thus aligned monofilaments in parallel. There is also provided a method for preparing a filter medium of membrane type made of thermoplastic synthetic resin monofilaments of 0.03 to 0.001 mm in diameter in which said monofilaments are spun out of a melt thermoplastic synthetic resin through a number of parallel or plurally lined spinning nozzles, air-cooled, drawn to reduce fineness thereof, subjected to a modification treatment, orderly aligned in parallel to form a mono-layer, linked by linkage band portions formed thereon at certain intervals to keep a parallel alignment thereof, and then stretched, said alignment being done by feeding said monofilaments between at least one pair of two tapered rollers fixed in the reverse direction with each other.

Filter cloth and replaceable filter module

A fitter cloth whose underside comprises substantially parallel, additional yarns 8 that are thicker than the rest of the yarns of the cloth, substantially parallel channels 9 being formed between the yarns, wherein filtered liquid passed through the cloth is allowed to flow in the direction of the surface of a filtering element 10 between the filtering portion of the cloth and the surface of the element. The invention further relates to a filtering module manufactured from the fitter cloth of the invention.

Filter cloth, filtering method and filtering device for liquid filtration

The invention concerns a filter cloth for liquid filtration made from pile Polycloth, the pile threads (21) of which are on the flow side and lie flat against the backing fabric during filtration, creating a deep-bed filter. During the backwash they are raised by the reverse flow and the dirt particles are released. Backwash is preferably initiated by a movable suction device (13) on the front of the filter, which at the same time has a mechanical effect on the pile threads, making them stand upright during the backwash and lie flat afterwards.

Carbon fiber fabric filters and method for manufacturing the same

본 발명은 고온가스 중에 함유된 먼지를 제거하는 고온가스 집진필터 및 그 제조방법에 관한 것으로서, 카본 파이버 단섬유로 형성된 웹이 교차 적층된 복수의 웹층 및 상기 웹층 사이에 삽입된 카본 파이버로 형성된 스크림을 포함하는 부직포를 스펀레이스 방법에 의해 제작된 집진효율, 내열성 및 강도가 우수한 집진필터와 그 제조방법에 관한 것이다. 본 발명은 카본 파이버를 소재로 하여 300℃ 이상의 고온에서도 강도와 집진효율이 우수하므로 산업체 현장에서 발생하는 배가스 내에 함유된 분진을 제거하는 집진필터로서 유용성이 매우 크며, 다른 소재(테프론 등)로 만든 고온용 집진필터에 비하여 가격이 매우 저렴하다. The present invention relates to a hot gas dust collecting filter for removing dust contained in hot gas and a method for manufacturing the same, comprising: a plurality of web layers in which webs made of short carbon fibers are cross-laminated and carbon fibers inserted between the web layers The present invention relates to a dust collecting filter having excellent dust collection efficiency, heat resistance and strength produced by a spunlace method, and a method of manufacturing the nonwoven fabric including the same. The present invention is very useful as a dust collecting filter that removes the dust contained in the exhaust gas generated in the industrial field because it is excellent in strength and dust collection efficiency at a high temperature of more than 300 ℃ made of carbon fiber, made of other materials (Teflon, etc.) It is very inexpensive compared to the high temperature dust collecting filter.

A kind of artificial pulmonary surfactant is used for the method for removing PM2.5

本发明涉及一种人工肺表面活性物质用于去除PM2.5的方法，包括丝素蛋白的改性、纤维膜的制备和粉尘的吸附，通过静电纺丝技术将丝素蛋白和人工肺表面活性物质的纺丝液制备成纳米纤维膜，用于去除重金属离子本发明通过静电纺丝制备纳米纤维膜，能有效控制纤维膜的孔隙率，去除不同粒径的PM2.5的颗粒。本发明采用天然的丝素蛋白和人工肺表面活性物质，能有效提高吸附剂与金属离子的接触面积，去除重金属离子。本发明所制备的薄膜应用方便，方法简单，可操作性强。

Tubular knitted filter cover and process for preventing runs

At both ends of a filter cover (6), respectively in the fastening area of the filter cover on draining element (1), bondings or settings (12, 14, 15, 16, 17, 18, 19, 10, 21) of stitches (10) are applied, which are interrupted in one or more of first rows of stitches (11) and are offset in one or more rows of stitches at the end of the fastening area in the peripheral direction. In a modification, setting (22) of stitches (10) at the end of the fastening area is placed uninterrupted in the peripheral direction. These settings partially or completely allow runs in the fastening area of a filter cover (6), so that, on the one hand, an enlargement of filter cover (6) is made possible for the assembly, and, on the other hand, the formation of runs outside the fastening area is prevented.

Patent RU2018137905A3

ВИ“? 2018137905” АЗ Дата публикации: 10.08.2020 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018137905/05(062823) 06.04.2017 РСТ/О$2017/026396 06.04.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/318,951 06.04.2016 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ТОНКИЕ ВОЛОКНА, ПОЛУЧЕННЫЕ ПУТЕМ СШИВАНИЯ ПРИ КОМНАТНОЙ ТЕМПЕРАТУРЕ Заявитель: ДОНАЛЬДСОН КОМПАНИ, ИНК., 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ВО1О 39/16 (2006.01) ро1р 5/06 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВОТЬ 39/00, 39/14, 39/16, ВОТЬ 5/00, 5/06, РОТЕ 1/00, 1/10, 6/00, 6/44, 6/56, 6/88, 6/90, 206мМ 13/00, 13/10, 1ЗЛТ, 15/00, 15/19, 15/21, 15/356, С08 77/00, 7/04, СОТ, 39/00, 39/04, 39/08 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУ\У/РТ, Ебрасепе, Раеагсь, КОРТО, ИЗРТО 6 ...

The method of the fabric filter of catalysis with low pressure drop

用于制备催化的织物过滤器的方法，包括以下步骤：a)提供具有气体入口表面和气体出口表面的织物过滤器基材，其优选由玻璃纤维组成，所述气体入口表面涂布有聚合物膜，其优选由聚四氟乙烯组成；b)提供包含一种或多种催化剂金属前体化合物的水性浸渍液；c)用浸渍液浸渍织物过滤器基材；和d)在低于300℃的温度下干燥和热活化经浸渍的织物过滤器基材，以将一种或多种催化剂前体的金属化合物转化为其催化活性形式，其中在步骤d)中，经浸渍的织物过滤器基材的干燥是从气体出口表面进行的。

Method for retrovirus removal

A method for removing retroviruses from liquid samples and a nanofiber containing liquid filtration medium that simultaneously exhibits high liquid permeability and high microorganism intention is disclosed. Retroviruses are removed from a liquid by passing the liquid through a porous nanofiber containing filtration medium having a retrovirus LRV greater than about 6, and the nanofiber(s) has a diameter from about 10 nm to about 100 nm. The filtration medium can be in the form of a fibrous electrospun polymeric nanofiber liquid filtration medium mat.

Cohesion Spun Nonwoven Fabric Manufacturing Method and Device

Un proceso para producir una tela no tejida hilada por cohesión (10) al expulsar un grupo de fibras continuas (2) desde una hilera (1), adelgazar y estirar el grupo de fibras continuas con un eyector rectangular (3), y recoger el grupo de fibras continuas (2) en una forma de tela no tejida, en donde el eyector rectangular (3) tiene una pieza de orificio de chorro que tiene una pareja de piezas de regulación de anchura de rendija que se encaran entre sí y se extienden continuamente a lo largo de una dirección de lado largo del orificio de chorro, al menos una de las piezas de regulación de anchura de rendija es un miembro de regulación de anchura de rendija que se compone de un miembro integrado que se extiende continuamente a lo largo de la dirección de lado largo del orificio de chorro, una pluralidad de medios de deformación diminuta (5), que deforman diminutamente el miembro de regulación de anchura de rendija, se dispone a lo largo de una dirección de lado largo del miembro de regulación de anchura de rendija, y una tela no tejida (10), que se ha recogida, se examina para determinar una distribución de peso base de la misma en una dirección de anchura y el miembro de regulación de anchura de rendija es deformado parcial y diminutamente por los medios de deformación diminuta (5) sobre la base de un valor determinado del mismo para cambiar parcialmente una anchura de rendija del orificio de chorro por su deformación diminuta, regulando de ese modo una distribución de peso base de la misma, en donde la pareja de piezas de regulación de anchura de rendija tiene una longitud (6) de 10 mm o más a lo largo de una dirección de marcha del grupo de fibras continuas.

Method and device for evading ladder on knitted filtering hull of pipe elements

COMPOSITE STRUCTURE, FIBROUS FACE MASK FOR FILTERING, FILTER, PROCESS FOR MANUFACTURING A NON-WOVEN POLYMERIC FIBERED FABRIC AND FOR MANUFACTURING A COMPOSITE STRUCTURE AND THERMAL INSULATION

Fine fibers made from room temperature crosslinking

본 개시 내용은 에폭시, 및 4-비닐 피리딘-함유 중합체를 포함하는 중합체 성분을 포함하는 조성물로부터 형성되는 미세 섬유를 제조하는 특유의 방법을 제공한다. 본 개시 내용은 또한 에폭시, 및 4-비닐 피리딘-함유 중합체를 포함하는 중합체 성분을 포함하는 조성물로 미세 섬유를 코팅하는 특유의 방법을 제공한다. 본 개시 내용은, 에폭시, 및 4-비닐 피리딘-함유 중합체를 포함하는 중합체 성분을 포함하는 조성물로부터 섬유 전체가 형성되는 미세 섬유를 추가로 제공한다. 미세 섬유를 포함하는 필터 매체 및 필터 기재가 또한 제공된다.

Refrigerant filter/drier

Filter cloth and replaceable filter module

A filter cloth whose underside comprises substantially parallel, additional yarns that are thicker than the rest of the yarns of the cloth, substantially parallel channels being formed between the yarns, wherein filtered liquid that passed through the cloth, is allowed to flow in the direction of the surface of a filtering element between the filtering portion of the cloth and the surface of the element. The invention further relates to a filtering module manufactured from the filter cloth of the invention.

Activated carbon fiber filter media laminate

In one example, a filter media laminate is provided that includes a first non-woven layer, a second non-woven layer, and an activated carbon fiber (ACF) layer disposed between, and attached to, the first non-woven layer and the second non-woven layer such that the ACF layer, the first non-woven layer, and the second non-woven layer collectively form the laminate.

Purification of very slightly contaminated air within a clean room

hybrid filter element and method

ELEMENTO DE FILTRO HìBRIDO E MéTODO A presente invenção diz respeito a um aparelho para filtrar impurezas de uma corrente de gás ou de líquido e elementos de filtro usados em um aparelho como este. O aparelho inclui um recipiente fechado com um comprimento que se estende longitudinalmente, um interior inicialmente aberto, um orifício de entrada em uma extensão e um orifício de saída na sua extensão oposta. Uma partição localizada no interior do recipiente divide o interior do recipiente em um primeiro estágio e em um segundo estágio. Pelo menos uma abertura é fornecida na partição. Em elemento de filtro fica disposto no recipiente para se estender a partir do primeiro estágio. O elemento de filtro é constituído por um meio de filtro de bloco de carbono envolto por um meio de filtro de profundidade poroso protetor. HYBRID FILTER ELEMENT AND METHOD The present invention relates to an apparatus for filtering impurities from a gas or liquid stream and filter elements used in such an apparatus. The apparatus includes a closed container with a length that extends longitudinally, an initially opened interior, an entrance orifice in one extension and an exit orifice in its opposite extension. A partition located inside the container divides the interior of the container into a first stage and a second stage. At least one opening is provided in the partition. A filter element is arranged in the container to extend from the first stage. The filter element consists of a carbon block filter means surrounded by a protective porous depth filter means.