Improvements relating to the manufacture of artificial threads

... 311,763. Aceta Ges. May 16, 1928, [Convention date]. Grant of Patent opposed. Apparatus for making filaments. - The lack of thermal homogeneity and consequent variation of viscosity in solutions emerging from the spinning nozzle in the dry spinning process, is obviated by guiding the solution in symmetrically disposed streams and in as thin layers as possible along surfaces of a body of high heat capacity placed directly above the nozzle. By making the mass of such a body sufficiently large compared with the volume of solution in contact therewith a homogeneous solution giving a thread of uniform titre is obtained. In the construction shown in Figs. 1 and 2, a comparatively thin hollow cylinder a, attached to the spinning nozzle at f is almost filled by a massive coaxial cylinder b leaving a narrow passage for the flow of solution. Perforations h as shown, or peripheral grooves in the direction of flow in the cylinder b may facilitate the flow. The heat capacity of the cylinder a is increased ...

Improvements in or relating to the production of artificial filaments

... In the production of artificial filaments or the like at high spinning speeds, the filaments on their way to collection are passed round a frictionally-driven feed roller which is slowed down during the initial stage of collection and allowed to increase in speed thereafter until the desired speed is attained. The process is particularly suitable for the collection or filaments of cellulose organic derivatives such as cellulose acetate. The feed roller may be slowed down by the fingers of the operator, or by a manually operated brake pad, or by a brake pad operated by a weighted lever. The brake may be released gradually or the feed roller may have a high moment of inertia in order that the acceleration may be slow. As shown in the drawings, the thread 6 leaving a dry or wet spinning apparatus 5 is passed round a roller 7 and then to a guide 8 and cap-spinning device 9. The roller 7 is freely mounted on a shaft 10 and is driven therefrom by a coned clutch 12 slidably ...

Improvements relating to the production of non-woven fabrics

... 1,132,575. Filamentary structures. CARL FREUDENBERG. 22 Oct., 1965 [24 Oct., 1964], No. 44844/65. Addition to 1,055,187. Heading B5B. [Also in Division D1] A non-woven fibre structure is made by extruding molten or dissolved fibre forming polymeric material through non-circular apertures arranged in one or more rows to form a sheet or sheets of parallel continuous filaments, stretching and setting the filaments while keeping them parallel to but separate from one another, and forming the sheet or sheets into a fleece, suitably by collecting the sheet or sheets of filaments on a carrier. Stretching and setting may be effected by gas or vapour suitably air, flowing in the same direction as the filaments but at a higher velocity. Preferably all the apertures through which each sheet is formed are in a single spinerette and all the filaments in the sheet pass from the spinnerette into an openended duct down which a current of gas or vapour flows without turbulence, which duct may be oscillated ...

Process and apparatus for use in the evaporative process of spinning artificial silk

... 338,881. Nelsons Silk, Ltd., and Nelson, J. July 25, 1929. Grant of Patent opposed. Apparatus for making filaments.-In the dry-spinning process a spinning head is employed having an annular liquid space which is closed at the bottom by a detachable annular, sheet-metal jet perforated with a ring of holes. The liquid is forced through the annular jet and air is supplied to or drawn off from the spaces inside and outside the jet. As shown in Fig. 1, spinning solution passes through a filter 2 and pipe 3 to an annular head 21, to which an annular jet 4 is detachably secured by a ring 22. The filaments 5 are extruded downwardly, and the air, which may be preheated, is caused to flow upwardly and is withdrawn centrally through a pipe 6 and externally through pipes 7, 8. Valves 9, 10, 11 permit of adjustment of the air flows. The jet, Fig. 4, comprises an annular trough of thin metal and is held against rotation within the spinning head by lugged washers. Fig, 2 shows a modified apparatus having ...

Apparatus for dry-spinning artificial filaments or threads

... In a dry-spinning apparatus for the production of artificial filaments, the evaporative atmosphere travels in a closed circuit comprising, in the direction of travel, an evaporating chamber in which the filaments are produced, a cooling chamber situated beyond the point of emergence of the filaments, and a heating chamber which is in communication with the evaporating chamber, these successive chambers being connected with one another without any constrictions, and without any means for accelerating or slowing up the circulation of the gas or vapour. The gas or vapour which circulates in the direction of the filaments moves with the same speed as the movement of the filaments, the motion of the gas or vapour being caused solely by mechanical entrainment by the movement of the filaments. As shown, the left-hand side of the upper part of tube 1 is used as the evaporative chamber of the dry spinning cell. The spinning-solution is extruded through nozzle 6, and the filaments ...

Improvements in the manufacture of artificial straws and the like

In a process for the production of straw-like material a heavy artificial filamentary product formed from a spinning solution containing a cellulose derivative and a plasticizer therefor is subjected to an operation of moulding under heat to produce permanent irregularities of shape such as crinkles, twists, partial twists, patterns or frizzed effects therein. The heavy artificial filamentary product may be formed by coalescing a number of fine filaments with a total weight of about 75 denier. The invention is of particular importance with straws of 500--2000 denier or more. The filamentary product may contain any cellulose derivative, together if desired with other materials such as cotton or wool incorporated with the cellulose derivative by means of solvents and pressure. The plasticizer preferably acts as a solvent for the cellulose derivative at elevated temperatures. Suitable plasticizers are e.g. triphenyl or tricresyl phosphate, paratoluene sulphonamide, triethylene glycol, diethylene ...

Improvements in and relating to the production of artificial threads by dry spinning

Artificial threads are produced by forming a number of filaments by a dry-spinning process in a spinning cell, withdrawing the bundle of filaments so formed from the cell, passing the bundle over and in contact with only a portion of the peripheral surface of a fixed and nonrotatable rod which is substantially at right angles to the path of the filaments, so that the bundle is formed into a ribbon of substantially parallel filaments, and then collecting the bundle of filaments as a twisted thread. The spinning machine may be provided with two brackets into which the rod may be dropped when required, the rod being heavy enough to maintain its position during operation against the forces exerted by the filament bundle. A single rod may be used for contacting all the threads in a conventional battery of spinning units. In the example, a cellulose acetate solution is extruded into a spinning cell, and the thread from the cell is passed over a one-inch diameter steel bar placed horizontally ...

Dry spinning method

... A method of dry spinning comprises injecting air in a longitudinal direction parallel to the direction of spinning, said air being injected into a perforated gas permeable hood (1, 2 or 3) mounted directly below the spinnerets 4 of the spinning cell, the longitudinal axis of said hood being parallel to the direction of flow of the spun filaments. The length of the hood may extend to the middle part of the drawing zone A (as in Fig. 1) or to the middle part of the subsequent drying zone B (Fig. 2) or over the total length of the spinning cell (Fig. 3). The hood may be made of wire gauze of 10-300 mesh, and may have local differences in mesh size.

Fibrous batt

... A fibrous batt is made by extruding a liquid comprising an organic filament-forming material through a plurality of orifices into a gaseous atmosphere to effect solidification of the material in the form of a multiplicity of continuous filaments and rendering turbulent the gaseous atmosphere in a zone in which the forming filaments are in a mutually adhesive condition, whereby the filaments come into contact and coalesce at randomly spaced points along their lengths and form a three-dimensional lace-like fibrous structure, and collecting the structure at a linear rate substantially below the linear rate of extrusion of the filament-forming material as a batt of a denier of at least 40,000, preferably 55,000-100,000. Desirably, the filament-forming material is extruded at a linear speed more than 400 times the linear speed of collection. Specified materials include cellulose ethers and esters, e.g. ethyl cellulose, cellulose acetate, cellulose propionate, cellulose ...

Improvements in or relating to the manufacture of artificial filaments, films and the like

... 543,062. Artificial filaments, films &c. DREYFUS, H. Aug. 5, 1940, No. 12587. [Class 2 (ii)] Filaments, films and the like are produced by extruding a solution of a filament-forming polymer or mixture of such polymers in an organic solvent under a pressure of about half an atmosphere. An elongated spinning chamber 1 is shown with heating pipes 2, and an outlet 3 to which suction can be applied to evacuate the chamber to the required degree. The solution of the polymer is fed from the container 4 to a measuring pump 5 by means of nitrogen or other inert gas supplied to the container through the pipe 6. It then passes through the filters 7, 8 to the jet 9, and the extruded filaments 10 are set, while passing through the chamber 1 and are cooled in the lower chamber 11 before being delivered by the roller 12 to the twisting spindle 13. The jet 9 may be filled with heated solution before being applied to the supply pipe, and steam pipes 16 serve as common heating means for the container 4 and ...

New process of spinning or working of cellulose solutions and articles thus obtained.

VERFAHREN ZUR BESEITIGUNG DER OBERFLAECHENKLEBRIGKEIT EXTRUDIERTER FAEDEN

TROCKENGESPONNENE FASERN UND FAEDEN AUS FADEN- BILDENDEN, SYNTHETISCHEN POLYMEREN UND VER- FAHREN ZU IHRER HERSTELLUNG

VERFAHREN ZUR HERSTELLUNG VON ACRYLFAEDEN ODER - FASERN

VERFAHREN ZUR HERSTELLUNG VON HYDROPHILEN FASERN

PROCEDURE FOR THE PRODUCTION OF A CELLULOSI MOLDED ARTICLE

PROCEDURE FOR THE PRODUCTION OF FIBERS

PROCEDURE AND DEVICE FOR THE PRODUCTION OF SHORT FIBRILLEN

DEVICE FOR THE PRODUCTION OF FIBRILLEN FROM SYNTHETIC POLYMERS IN FORM OF A SUSPENSION

VERFAHREN ZUR HERSTELLUNG VON SCHWER ENTFLAMMBAREN, HOCHTEMPERATURBESTAENDIGEN POLYIMIDFASERN

SPIN DEVICE

PROCEDURE AND DEVICE FOR THE PRODUCTION OF CELLULOSE FIBERS AND CELLULOSE FILAMENT YARNS

Molded fiber article

Disclosed is a molded fiber article having an average fiber diameter of 0.05-50 m, formed from a hydrophobic polymer and amphipathic molecules, and exhibiting excellent hydrophilicity through the segregation of the amphipathic molecules to the surface of the fibers.

EXTRUSION OF POLYACRYLONITRILE INTO PRESSURIZED ZONE WITH WATER INTO FILAMENTS

SPANDEX FIBER WITH COPOLYMER SOFT SEGMENT

A elastic fibers are formed from spandex polymer that is prepared by reacting a glycol prepared from a tetrahydrofuran/3-methyltetrahydrofuran copolymer with a diisocyanate and then chain extending the thusly capped glycol with a particular mixture of diamines. The fibers have a highly desirable combination of power, hot-wet creep and heat-set efficiency and can be prepared at high spinning and windup speeds.

METHOD AND APPARATUS FOR THE PRODUCTION OF SHORT FIBERS

BREVET D'INVENTION Procédé de production de fibrilles courtes et dispositifs pour sa réalisation La Société Anonyme dite : SOLVAY \A Cie Convention : Demandes de brevets luxembourgeois n.degree.69196 du 18 janvier 1974, n.degree. 70525 du 12 juillet 1974 et n.degree. du 18 octobre 1974 en sa faveura) L'invention concerne un procédé pour la production directe de fibrilles courtes par détente brusque d'un mélange biphasique de polymère fondu et de solvant. b) Le procédé consiste à perturber le flux de mélange biphasique au moment où il pénètre dans l'orifice de détente brusque. c) Le procédé permet la production de fibrilles qui peuvent être exploitées directement pour la production de textiles non tissés et de papiers synthétiques. Figure 1.

CELLULOSE SOLUTION EXTRUDING OR FORMING PROCESS, AND PRODUCTS THUS OBTAINED

EXTREMELY FINE POLYLACTIC ACID FIBER, FIBROUS STRUCTURE AND PROCESS FOR PRODUCING THESE

A fibrous structure obtained by spinning a solution of L-lactic acid condensation product and D-lactic acid condensation product in accordance with an electrostatic spinning technique. There can be provided a fibrous structure containing fibers that have an extremely small fiber diameter, exhibiting excellent heat resistance and biodegradability.

ELECTRO-SPINNING PROCESS FOR MAKING STARCH FILAMENTS FOR FLEXIBLE STRUCTURE

A flexible structure comprises a plurality of starch filaments. The structure comprises at least a first region and a second region, each of the first and second regions having at least one common intensive property selected from the group consisting of density, basis weight, elevation, opacity, crepe frequency, and any combination thereof. The common intensive property of the first region differs in value from the common intensive property of the second region.

PROCESS FOR MELT SPINNING ACRYLONITRILE POLYMER HYDRATES

APPARATUS FOR THE RECOVERY OF FIBRILS MADE OF SYNTHETIC POLYMER

METHOD OF PRODUCING FIBRE OR FILM

... 2141862 9404724 PCTABS00030 A water-absorbent water-insoluble fibre or film is produced by extruding an aqueous solution of a water-soluble polymer into a gaseous medium to form fibre or film. The extruded fibre or film is collected at a moisture content of 8 to 25 % based on the dry weight of the fibre or film and is further dried at a temperture no greater than 100 ·C before crosslinking the fibre or film at a temperature in the range 125 to 250 ·C to a degree sufficient that the crosslinked fibre or film is water-insoluble. The fibre or film entering the crosslinking step has a moisture content which is reduced, preferably by at least 5 %, and which is in the range 0 to 10 %. Heat-crosslinked fibre is preferably treated with moist air after crosslinking to raise the moisture content of the fibre to at least 10 %, particularly if the fibre is for textile processing. Water-absorbent water-insoluble coatings can be produced by a similar process.

Appareil pour la fabrication de la soie artificielle.

Vorrichtung zur Luftvorwärmung beim Trockenspinnen.

Verfahren zur Kühlung der Spinndüsen für die Kunstseidefabrikation.

Vorrichtung zur gleichmässigen Beheizung von Spinnschächten.

Verfahren zur Reinigung der Düsen bei Kunstseidespinnmaschinen.

Verfahren zur Herstellung von künstlichen Fäden und ähnlichen Gebilden aus lösliche Zelluloseverbindungen und flüchtige Lösungsmittel enthaltenden Spinnmassen nach dem Trockenspinnverfahren.

Rückgewinnungsanlage für Lösungsmittel von Spinnlösungen.

Trockenspinnverfahren zur Herstellung von Kunstseide.

Trockenspinnverfahren bei der Herstellung künstlicher Seide.

Procédé de filature, à l'état fondu, d'un produit organique, et appareil pour la mise en oeuvre de ce procédé.

Procédé de fabrication de produits extrudés à base de polymères vinyliques.

Verfahren und Vorrichtung zum Trockenspinnen von Kunstfasern.

Cellula per la filatura ad alta velocità di masse plastiche comportani un solvente volatile.

Procédé de fabrication de fibres artificielles en mèches, et appareil pour la mise en oeuvre de ce procédé.

Verfahren und Vorrichtung zum Trockenspinnen

Procédé de fabrication de produits extrudés à base de dérivés cellulosiques.

Spindellenkung für Kraftfahrzeuge.

Vorrichtung zum Trockenspinnen von Kunstfasern.

Vorrichtung zum Trockenspinnen von Kunstfasern.

HEAT INSULATION CRYSTAL AND FIBER

The invention discloses a preparation method of a heat-insulation crystal. The preparation method comprises the steps of mixing carbon, quartz, feldspar, and boron in the mass ratio of 5:1:1:3, then placing the mixture into a calciner for calcining, and cooling to obtain the heat-insulation crystal. The invention further discloses a preparation method of a heat-insulation fiber by using the heat-insulation crystal and a fiber to create a heat-insulation fiber. The heat-insulation crystal, the heat-insulation fiber and the heat-insulation product have superior warming and heat-insulation effects and deodorizing functions. 1. A heat insulating crystal comprising:Carbon, quartz, feldspar, and boron in a mass ratio of 5:1:1:32. A method of making heat insulation crystals comprising:Mixing carbon, quartz, feldspar, and boron at a mass ratio of 5:1:1:3 to create a mixture,Heating said mixture to about 3800-4200° F., at an increase of about 800-1200° F. per hour, then cooling the mixture,Further heating said mixture to a temperature of about 4500-5500° F., at an increase of about 1800-2200° F. per hour, then maintaining said temperature of about 4500-5500° F. for 15-30 minutes.Cooling the obtained crystal.32. A method of making insulation crystals as in claim () , further comprising:Heating said mixture to about 4000° F., at an increase of about 1000° F. per hour, then cooling the mixture,Further heating said mixture to a temperature of about 5000° F., at an increase of about 2000° F. per hour, then maintaining said temperature of about 5000° F. for 20 minutes.4. The composition of matter formed by the method of .5. The composition of matter formed by the method of .6. A method for manufacturing heat insulating fibers comprising:{'claim-ref': {'@idref': 'CLM-00002', 'claim 2'}, 'Producing heat insulation crystals according to'}Processing said heat insulation crystals into about 1-10 nanometer particles,Adding heat crystals to fibers at a mass ratio of about 3-5-% heat ...

COPOLYMER FIBERS AND YARNS AND PROCESSES FOR MAKING SAME

The present invention concerns methods for obtaining high-tenacity aramid yarn, wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising 5-(6)-amino-2-(p-aminophenyl)benzimidazole, an aromatic para-diamine, and an aromatic para-diacid; the method comprising: a) spinning said copolymer from an inorganic acid solvent to produce the aramid yarn; b) washing said yarn with a basic aqueous solution for at least 5 seconds; and c) heating said yarn; wherein the yarn is heated in at least two process steps, characterized in that (i) in a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed by (ii) a second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex. In some embodiments, the yarn has an effective polymer cation to sulfur content molar ratio of at least 0.3. In some embodiments, the yarn has a hydrolytic strength retention of the yarn is greater than 60% 1. A method for obtaining high-tenacity aramid yarn , wherein the yarn is made of a copolymer obtained from a mixture of monomers comprising 5-(6)-amino-2-(p-aminophenyl)benzimidazole , an aromatic para-diamine , and an aromatic para-diacid; said method comprising:a) spinning a dope solution comprising said copolymer and sulfuric acid to produce the aramid yarn;b) washing said yarn with a basic solution for at least 5 a time period of greater than 20 seconds; andc) heating said yarn; wherein the yarn is heated in at least two process steps, characterized in thatin a first step the yarn is heated at a temperature of 200 to 360° C. at a tension of at least 0.2 cN/dtex, followed bya second step wherein the yarn is heated at a temperature of 370 to 500° C. at a tension of less than 1 cN/dtex,wherein the hydrolytic strength retention of the yarn is greater than 60%; andwherein the hydrolytic strength retention is computed by dividing the strength of a skein of yarn treated with ...

METHOD AND APPARATUS FOR MANUFACTURING A STAPLE FIBER BASED ON NATURAL PROTEIN FIBER, A RAW WOOL BASED ON THE STAPLE FIBER, A FIBROUS YARN MADE OF THE STAPLE FIBER, A NON-WOVEN MATERIAL MADE OF THE STAPLE FIBER AND AN ITEM COMPRISING THE STAPLE FIBER.

Disclosed embodiments describe a method for manufacturing a staple fiber based on natural protein fiber. The method may include: providing a protein suspension, the protein suspension comprising fibrils of the natural protein fiber; directing the protein suspension through a nozzle onto a surface for forming a protein based fiber; drying the protein suspension on the surface; extracting the fiber from the surface; and providing the staple fiber. Disclosed embodiments may further describe a fiber based raw wool. The raw wool may include staple fibers, wherein the staple fibers are reconstructed on the basis of protein fibrils and are mechanically subdivided from natural protein fibers, wherein the protein fibrils are interlocked by hydrogen bonds, and wherein the raw wool comprises an unoriented, entangled, fluffy network of staple fibers. 148. -. (canceled)49. A method for manufacturing a staple fiber based on natural protein fiber , the method comprising:providing a protein suspension, the protein suspension comprising fibrils of the natural protein fiber;directing the protein suspension through a nozzle onto a surface for forming a protein based fiber;drying the protein suspension on the surface;extracting the fiber from the surface; andproviding the staple fiber.50. The method of claim 49 , wherein the natural protein fibers comprise collagen fibers.51. The method of claim 49 , wherein the natural protein fibrils are mechanically divided from a source of natural protein fibers.52. The method of claim 49 , wherein the protein suspension exits the nozzle in at least one of a round of elliptic cross-sectional shape.53. The method of claim 49 , wherein drying the protein suspension on the surface comprises drying via at least one of: radiation claim 49 , blowing claim 49 , and conduction.54. The method of claim 49 , wherein the surface comprises a hydrophobic external surface.55. The method of claim 49 , further comprising applying at least one of oil and wax to the ...

BIO-DERIVED POLYURETHANE FIBER

Included are elastomeric fibers and method for preparing such fibers, which include a bio-derived butanediol. The bio-derived butanediol is used to prepare a polymeric glycol composition, which is contacted with a diisocyanate and spun to provide an elastomeric fiber. 1. A method for preparing an elastomeric fiber comprising:(a) providing a polymeric glycol composition; from a bio-derived butanediol;(b) contacting said polymeric glycol composition with at least one diisocyanate;(c) dissolving the capped glycol in a solvent to provide a capped glycol solution;(d) contacting the capped glycol solution with a chain extender composition; and 'wherein said polymeric glycol composition includes at least one polymeric glycol which is prepared using from a bio-derived 1,4-butanediol.', '(e) spinning the solution to form the elastomeric fiber;'}2. The method of claim 1 , wherein said elastomeric fiber is spandex.3. The method of claim 1 , wherein said bio-derived 1 claim 1 ,4-butanediol is converted to tetrahydrofuran prior to polymerization to form a polymeric glycol.4. The method of claim 3 , wherein said polymeric glycol is a copolymer of tetrahydrofuran and at least one member of the group consisting of ethylene oxide claim 3 , propylene oxide claim 3 , trimethylene oxide claim 3 , 3-methyltetrahydrofuran claim 3 , and combinations thereof.5. The method of claim 1 , wherein said diisocyanate includes at least one diisocyanate selected from the group consisting of 4 claim 1 ,4′-methylene bis(phenyl isocyanate) claim 1 , 2 claim 1 ,4′-methylene bis(phenyl isocyanate) 1-isocyanato-4-[(4-isocyanatophenyl)methy]benzene claim 1 , 1-isocyanato-2-[(4-cyanatophenyl)methyl]benzene claim 1 , bis(4-isocyanatocyclohexyl)methane claim 1 , 5-isocyanato-1-(isocyanatomethyl)-1 claim 1 ,3 claim 1 ,3-trimethylcyclohexane claim 1 , 1 claim 1 ,3-diisocyanato-4-methyl-benzene claim 1 , 2 claim 1 ,2′-toluenediisocyanate claim 1 , 2 claim 1 ,4′-toluenediisocyanate claim 1 , and mixtures thereof ...

FLEXIBLE EMBEDDED INTERCONNECTS

Flexible electronically functional fibers are described that allow for the placement of electronic functionality in traditional fabrics. The fibers can be interwoven with natural fibers to produce electrically functional fabrics and devices that can retain their original appearance. 1. A flexible electrically functional fiber comprising:a core;a first conductive layer adjacent the core;a dielectric layer adjacent the first conductive layer;a second conductive layer adjacent the dielectric layer; andan insulative coating surrounding the second conductive layer, wherein the flexible electrically functional fiber has a natural bending radius of less than 2.0 mm.23-. (canceled)4. The functional fiber of wherein the fiber has an average diameter of less than 1 μm.5. The functional fiber of wherein the fiber has a natural bending radius of less than 1.0 mm.6. (canceled)7. The functional fiber of wherein the fiber has a natural bending radius of less than 0.5 mm.8. The functional fiber of wherein the core comprises a textile fiber.9. The functional fiber of wherein the core comprises a natural fiber.1011-. (canceled)12. The functional fiber of wherein the core comprises a polymer.1314-. (canceled)15. The functional fiber of wherein at least one of the conductive layers has a resistance of less than 10Ω·m.1618-. (canceled)19. The functional fiber of wherein the dielectric layer is interrupted along the length of the functional fiber.20. The functional fiber of comprising an input device claim 1 , a power source claim 1 , memory cell claim 1 , a communication channel claim 1 , an interconnect claim 1 , a capacitor claim 1 , and/or an output device.21. The functional fiber of comprising an input device wherein the input device comprises a piezoelectric material.2223-. (canceled)24. The functional fiber of comprising an output device wherein the output device comprises a piezo luminescent material.2526-. (canceled)27. The functional fiber of wherein each of the layers is less ...

MULTIFILAMENT AND BRAID

It is provided that a multifilament and a braid that are capable of being processed into products in a wide range of temperature and are excellent in dimensional stability and abrasion resistance. A multifilament comprising 5 or more monofilaments, wherein the multifilament contains polyethylene having an intrinsic viscosity [η] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and shows 1000 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 5 cN/dtex in accordance with JIS L-1095. 1. A multifilament comprising 5 or more monofilaments , whereinthe multifilament contains polyethylene having an intrinsic viscosity [η] of 5.0 dL/g or more and 40.0 dL/g or less and substantially including ethylene as a repeating unit, and shows 1000 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 5 cN/dtex in accordance with JIS L-1095.2. The multifilament according to claim 1 , which shows 100 times or more in number of reciprocating abrasions at break in an abrasion resistance test measured at a load of 10 cN/dtex in accordance with JIS L-1095.3. The multifilament according to claim 1 , wherein the monofilament has a titer of 3 dtex or more and 40 dtex or less.4. The multifilament according to claim 1 , which has a maximum thermal stress of 0.20 cN/dtex or more.5. The multifilament according to claim 1 , wherein a coefficient of variation CV of initial modulus defined by Equation (1) below is 30% or less:{'br': None, 'Coefficient of variation CV (%)=(standard deviation of initial modulus of the monofilament)/(average value of initial moduli of monofilament)×100\u2003\u2003(1)'}6. The multifilament according to claim 1 , which has a thermal stress of 0.15 cN/dtex or more at 120° C.7. The multifilament according to claim 1 , which has a thermal shrinkage of 0.20% or less at 70° C. and a thermal shrinkage of 3.0% ...

AIR PURIFICATION

Embodiments herein generally relate to the use, devices, and compounds for generating singlet oxygen. In some embodiments, the singlet oxygen can be used for fluid purification and/or sterilization. 1. An air filter comprising a polymer fiber comprising a polymer comprising a monomer unit of:a material capable of excited state energy transfer; anda polymerized moiety covalently attached to the material capable of excited state energy transfer.2. The air filter of claim 1 , wherein the material capable of excited state energy transfer comprises a material capable of causing a triplet state to be excited in oxygen.3. The air filter of claim 2 , wherein the material capable of causing a triplet state comprises at least one of a metal or an organic molecule.4. The air filter of claim 3 , wherein the metal comprises at least one of iridium claim 3 , copper claim 3 , nickel claim 3 , tin claim 3 , lead claim 3 , europium claim 3 , gadolinium claim 3 , samarium claim 3 , terbium claim 3 , neodymium claim 3 , thorium claim 3 , uranium claim 3 , rhenium claim 3 , osmium claim 3 , ruthenium claim 3 , rhodium claim 3 , platinum claim 3 , silver claim 3 , palladium claim 3 , gold claim 3 , cadmium claim 3 , or mercury.5. The air filter of claim 3 , wherein the metal comprises iridium.6. The air filter of claim 3 , wherein the organic molecule comprises at least one of coumarin claim 3 , fluorescein claim 3 , or rhodamine.7. The air filter of claim 6 , further comprising iodine claim 6 , bromine claim 6 , selenium claim 6 , tellurium claim 6 , or a combination thereof claim 6 , attached to the organic molecule.8. The air filter of claim 1 , wherein the polymerized moiety comprises at least one polymerized molecule from the group of: an acrylic group claim 1 , a styrenic group claim 1 , polyurethane claim 1 , polyurea claim 1 , or a vinyl group.9. (canceled)10. The air filter of claim 1 , wherein the fiber is positioned in a filter.11. The air filter of claim 10 , wherein the ...

POLYURETHANE UREA ELASTIC YARN HAVING IMPROVED DYEABILITY AND MANUFACTURING METHOD THEREFOR

The present invention relates to a polyurethane urea elastic yarn having improved dyeability and a manufacturing method therefor. Through a process of forming a prepolymer by mixing polyethyleneglycol with polyol and then adding diisocyanate to the same in a prepolymer manufacturing step during the manufacture of a polyurethane urea elastic yarn, the hydrophilicity of the polyurethane urea elastic yarn is improved such that the accessibility of an acid dye is enhanced, thereby enabling the dyeability of the polyurethane urea elastic yarn to be enhanced and an advantage of dye color deepening of a fabric, in which nylon and a polyurethane urea elastic yarn are knitted together, to be expected. 1. A polyurethane urea elastic yarn having improved dyeability , the yarn comprising (a) a polyol including a first polyol and a second polyol; (b) at least one of diisocyanates; (c) at least one of diamine chain extenders; and (d) at least one of amine chain terminators ,wherein the second polyol is polyethylene glycol; andthe first polyol and the second polyol are materials different from each other.2. The polyurethane urea elastic yarn having improved dyeability of claim 1 , wherein the second polyol is mixed in 5.0 mol % to 20.0 mol % with respect to the total amount of polyol.3. The polyurethane urea elastic yarn having improved dyeability of claim 1 , which has an amine-terminated number of 20.0 meq/kg to 45.0 meq/kg.4. A method for manufacturing a polyurethane urea elastic yarn having improved dyeability claim 1 , the method comprising:(a) preparing a polyurethane prepolymer by bringing a polyol including a first polyol and a second polyol into contact with at least one of diisocyanates;(b) adding a solvent to the prepolymer in the step (a);(c) bringing the product in the step (b) into contact with at least one of diamine chain extenders and at least one of amine chain terminators; and(d) preparing a polyurethane urea elastic yarn by spinning the product in the step (c), ...

DRY-WET SPINNING DEVICE AND METHOD FOR MANUFACTURING SYNTHETIC FIBER

There is provided a dry-wet spinning device for an acrylic precursor fiber bundle for manufacturing carbon fibers, the device enabling stable spinning by making the coagulability of spun yarn () uniform by suppressing the vibration of the coagulating liquid surface to make the spun yarn () spun downward from a spinneret () without the liquid surface being in contact with the spinning surface of the spinneret less susceptible to an accompanying flow reflected by the bottom surface of a spinning bath. To this end, in the present invention, a horizontal flow straightening plate () produced from a porous plate or a plate material extending in the direction approximately perpendicular to the direction in which the spun yarn () is spun is disposed in a coagulation bath so as to surround the circumference of the yarn spun downward from the spinneret (). Further, a vertical flow straightening plate () extending vertically across part or all of the outer periphery of the horizontal flow straightening plate () can be provided. 1. A method for manufacturing a synthetic fiber , the method comprising:spinning a synthetic fiber while, when stock solution for spinning is spun downward from a spinneret and discharged to a vapor phase part for forming fibers, which are then coagulated by introduction to a coagulation bath, a reflecting flow moving in an upward direction is blocked by a horizontal flow straightening plate as an accompanying flow accompanying running of a spun yarn in a downward direction is reflected by a bottom surface of the coagulation bath, whereinthe horizontal flow straightening plate includes a single piece or plural pieces of plates, has an opening part for passing the yarn at the center, and is disposed in a range of 50% or more of the circumference of the yarn spun downward from the spinneret,the opening part is connected to an outside of the horizontal flow straightening part by forming a connecting part on the horizontal flow straightening plate, andeach ...

METHOD FOR PRODUCING GRAPHENE FIBRES

The invention relates to a method for producing graphene fibres, comprising the following steps: a. providing single- or multi-layer graphene or graphene oxide platelets based on graphene or graphene oxide; b applying a transition metal or a transition metal oxide to the graphene or graphene oxide platelets by means of a deposition method; c. spinning, in particular wet-spinning or dry-spinning, a graphene fibre or graphene oxide fibre by injecting a spinning solution, in which the graphene or graphene oxide platelets obtained in step b) are dispersed; d. treating, in particular reducing, the graphene fibre or the graphene oxide fibre in a process atmosphere containing a reducing agent, in particular hydrogen, at a determined treatment temperature; wherein, where there is a graphene oxide fibre, this is reduced to form a graphene fibre, wherein the graphene fibre or graphene oxide fibre is treated in such a way that the transition metal oxide in step d) is only partially reduced or the transition metal in a step following step d) is partially oxidised, wherein the partial reducing or partial oxidation occurs, in particular in such a way that there is a certain proportion of the transition metal oxide in the finished graphene fibre that is smaller than the proportion of the transition metal, in particular smaller than 10 wt. %. 1. A process for producing graphene fibers , the process comprising the steps:a. providing single-layer or multilayer graphene flakes or graphene oxide flakes based on graphene or on graphene oxide,b. applying a transition metal or a transition metal oxide to the graphene flakes or graphene oxide flakes by a deposition process,c. spinning a graphene fiber or graphene oxide fiber by injection of a spinning solution comprising in dispersed form the graphene flakes or graphene oxide flakes obtained from step b),d. treating the graphene fiber or the graphene oxide fiber in a process atmosphere containing a reducing agent at a defined treatment ...

Filter materials and filters made therefrom

The present invention relates to filter material for inclusion in a smoking article, wherein the filter material is in the form of a fibrous tow or a non-woven sheet comprising fine cellulose acetate fibres having a mean diameter of from about 1 μm to about 15 um. The invention also relates to processes for preparing filter material for inclusion in a smoking article, the filter material comprising fine cellulose acetate fibres having a mean diameter of from about 1 μm to about 15 μm. The invention further relates to filters or filter elements comprising the filter material, smoking articles comprising the same, and use of the filter material in smoke filtration. 1. A filter material for inclusion in a smoking article , wherein the filter material is in the form of a fibrous tow comprising fine cellulose acetate fibres having a mean diameter of from about 1 μm to about 10 μm.2. A filter material as claimed in claim 1 , wherein the tow is formed from fibres and at least about 80% by weight of the fibres are fine cellulose acetate fibres.3. A filter material as claimed in claim 1 , wherein the fine cellulose acetate fibres have a diameter of no less than 0.3 μm.4. A filter material as claimed in claim 1 , wherein the fine cellulose acetate fibres comprise cellulose acetate and an additive.5. A filter material as claimed in claim 1 , wherein filter material further comprises a plasticizer which is one or more selected from the group consisting of: triacetin; polyethylene glycol; triethyl citrate; andtriethylene glycol diacetate.6. A filter material as claimed in claim 1 , wherein the filter material removes from about 50% to about 90% phenol from tobacco smoke.7. A filter material as claimed in claim 1 , wherein the filter material removes from about 50% to about 90% cresol from tobacco smoke.8. A process for preparing filter material for inclusion in a smoking article claim 1 , the filter material comprising fine cellulose acetate fibres having a mean diameter of from ...

COMPOSITES COMPRISING RIGID-ROD POLYMERS AND GRAPHENE NANOPARTICLES AND PROCESS FOR MAKING THE SAME

The present invention relates to composites comprising rigid-rod polymers and graphene nanoparticles, processes for the preparation thereof, nanocomposite films and fibers comprising such composites and articles containing such nanocomposite films and fibers. 1. A polymer composite comprising a polymer and graphene nanoparticles dispersed in the polymer , the polymer comprising at least 50 wt % rigid rod polymer repeat units.2. The polymer composite of wherein at least 50 wt % of the polymer are rigid rod ladder polymer repeat units.6. The polymer composite of wherein Xand Xare each a bond.14. The polymer composite of wherein Xand Xare each a bond.16. The composite of wherein the graphene nanoparticles claim 1 , on average claim 1 , contain less than 50 graphene sheets in a stacked arrangement.17. The composite of wherein the graphene nanoparticles contain on average less than 25 graphene sheets in a stacked arrangement.18. The composite of wherein the graphene nanoparticles contain on average less than 10 graphene sheets in a stacked arrangement.19. The composite of wherein graphene nanoparticles are present at a concentration in the range of about 5 wt % to about 50 wt % of the polymer composite.20. The composite of wherein graphene nanoparticles are present at a concentration in the range of about 10 wt % to about 50 wt % of the polymer composite.21. The composite of wherein the graphene nanoparticles claim 1 , on average claim 1 , contain less than 50 graphene sheets in a stacked arrangement.22. The composite of wherein the graphene nanoparticles contain on average less than 25 graphene sheets in a stacked arrangement.23. The composite of wherein the graphene nanoparticles contain on average less than 10 graphene sheets in a stacked arrangement.24. The composite of wherein the tensile strength of the polymer composite is at least 50% greater than the tensile strength of the base polymer of the polymer composite.25. The composite of wherein the tensile strength ...

SPINNERET FOR ELECTROSTATIC SPINNING

A spinneret () for electrostatic spinning is configured from a structure of an electrically conductive metal material. The structure is provided with a long-axis direction (X), a short-axis direction (Z), and a thickness direction (Y). An inflow port () for a spinning starting material fluid is provided to one surface of the structure. A plurality of protrusions () are formed on another surface of the structure so as to be aligned along the long-axis direction (X). Each of the plurality of protrusion () extends so as to protrude from the structure. The protrusions () have, provided to apexes () thereof, discharge holes () for discharging the starting material fluid. The pitch of the discharge holes () exceeds 1 mm. 1. A spinneret for electrostatic spinning , comprising a structure of an electrically conductive metal material ,wherein the structure is provided with a long-axis direction, a short-axis direction, and a thickness direction,one surface of the structure is provided with an inflow port for a spinning starting material fluid, a plurality of protrusions are formed on another surface of the structure so as to be aligned along the long-axis direction, each of the plurality of protrusions extends so as to protrude from the structure, the protrusions have, provided to apexes thereof, discharge holes for discharging the starting material fluid, and the pitch of the discharge holes exceeds 1 mm.2. The spinneret for electrostatic spinning according to claim 1 , wherein the height of each protrusion is 0.1 mm or more.3. The spinneret for electrostatic spinning according to claim 1 , wherein the structure comprises two or more parts claim 1 , and adjoining planes of the parts are provided with flow passages for uniformly distributing the starting material fluid to each discharge hole.4. The spinneret for electrostatic spinning according to claim 1 , comprising distributing plates for uniformly distributing the starting material fluid to each discharge hole claim 1 , ...

METHOD FOR PRODUCING CERAMIC FIBERS OF A COMPOSITION IN THE SIC RANGE AND FOR PRODUCING SIC FIBERS

A method for producing ceramic fibers of a composition in the SiC range, starts from a spinning material that contains a polysilane-polycarbosilane copolymer solution. The spinning material is extruded through spinnerets in a dry spinning method and spun through a spinning duct into green fibers, and the green fibers are subsequently pyrolyzed. Accordingly, the polysilane-polycarbosilane solution contains between 75 wt. % and 95 wt. %, in particular between 80 and 90 wt. %, of an indifferent solvent, and the spinnerets have a capillary diameter between 20 and 70 μm, in particular between 30 and 60 μm, in particular between 40 and 50 μm. 1. A method for producing ceramic fibers with a composition in an SiC range formed from a spin dope containing a polysilane-polycarbosilane copolymer solution , which comprises the steps of:providing the spin dope containing the polysilane-polycarbosilane copolymer solution in a range 75% by weight to 95% by weight of an inert solvent;extruding the spin dope through spin nozzles in a dry spinning process and spun through a spinning duct resulting in green fibers, the spin nozzles having a capillary diameter in a range 20 to 70 μm; andpyrolyzing the green fibers resulting in pyrolyzed fibers.2. The method according to claim 1 , which further comprises carrying out the dry spinning process at a draw rate in a of range 50 m/min to 1 claim 1 ,000 m/min.3. The method according to claim 1 , which further comprises setting a viscosity of the spin dope in a range of 0.1 to 6 Pas.4. The method according to claim 1 , which further comprises carrying out the dry spinning process with 50 to 50 claim 1 ,000 spin nozzles.5. The method according to claim 1 , which further comprises carrying out the dry spinning process at shear rates in a range of 10 claim 1 ,000 sto 60 claim 1 ,000 s.6. The method according to claim 1 , wherein the spin dope contains a spinning aid selected from the group consisting of polyethylene claim 1 , polypropylene claim 1 ...

ELECTROSPINNING APPARATUS

According to an embodiment, an electrospinning apparatus includes: a transport roll; and a head unit. The transport roll is a roll that transports a substrate. The transport has a transport surface that is in contact with the substrate when transporting the substrate. The transport surface of the transport roll has a surface roughness Ra of 1.6 or less. The head unit ejects a raw material liquid of fiber toward the substrate transported by the transport roll to form a film of the fiber on the substrate. 1. An electrospinning apparatus , comprising:a transport roll capable of transporting a substrate, the transport roll having a transport surface that is in contact with the substrate when transporting the substrate, the transport surface of the transport roll having a surface roughness Ra of 1.6 or less; anda head unit capable of ejecting a raw material liquid of fiber toward the substrate transported by the transport roll to form a film of the fiber on the substrate.2. The electrospinning apparatus according to claim 1 , whereinthe transport surface of the transport roll includes a coating film, the coating film containing a fluorine resin.3. The electrospinning apparatus according to claim 2 , whereinthe coating film contains at least one resin selected from polytetrafluoroethylene, a tetrafluoroethylene/perfluoroalkyl vinyl ether copolymer, a tetrafluoroethylene/hexafluoropropylene copolymer, and a tetrafluoroethylene/ethylene copolymer.4. The electrospinning apparatus according to claim 1 , whereinthe transport roll includes grooves formed uniformly on the transport surface, and a relationship of W≤0.5×φ1 is satisfied where a diameter of the transport roll is φ1 and a width of each of the grooves is W.5. The electrospinning apparatus according to claim 4 , whereina pitch between the grooves is 1.1 times or more of the width of each of the grooves.6. The electrospinning apparatus according to claim 1 , whereinthe transport roll includes a base and a coating film, ...

Methods, Apparatus, and Systems for Fabrication of Polymeric Nano-and Micro-Fibers in Aligned Configurations

Provided herein are apparatus and systems for fabricating highly aligned arrays of polymeric fibers having isodiameters ranging from sub 50 nm to microns with lengths of several millimeters. The approach disclosed herein uses (e.g.) a micropipette to deliver polymeric solution which is collected in the form of aligned fibers on a rotating and linearly translating substrate. The methods deposit polymeric fibers on spherical surfaces and gapped surfaces with precise control, thus heralding new opportunities for a variety of applications employing polymeric fibers. The design workspace for depositing fibers disclosed herein is dependent upon processing parameters of rotational/linear translational speeds and material properties of solution rheologies. Techniques for fabrication of multilayer fiber arrays, for fabrication of cell growth scaffolds and for attachment of particles to the fiber arrays are also disclosed. 157-. (canceled)58. A scaffold comprising one or more layers of one or more high aspect ratio , bead-free polymer fibers having a diameter of between about 10 nm and 10 μm , wherein the polymer is one or more of a polystyrene , a polyester , a polyurethane , a polyacrylamide , a poly(methyl methacrylate) , a polylactic acid , a poly(lactic-co-glycolic acid) , a poly(caprolactone) , fibrinogen , collagen , and mixtures and copolymers thereof.59. The scaffold of claim 58 , wherein the fibers are formed into one or more bundles of substantially parallel fibers.60. The scaffold of claim 58 , wherein the fibers are formed into one of more bundles of substantially criss-crossed fibers claim 58 , or fibers deposited in any orientation.61. The scaffold of claim 58 , wherein the scaffold comprises two or more layers of fibers.62. The scaffold of claim 61 , wherein one layer is substantially parallel to other layers.63. The scaffold of claim 61 , wherein one layer is substantially criss-crossed to other layers claim 61 , or is in any other non-parallel orientation to ...

Process for Making an Article of Manufacture

A process, for example a continuous process, for making an article of manufacture containing a fibrous structure, for example a composite structure, and more particularly to a process for making an article of manufacture containing a fibrous structure, such as a soluble fibrous structure, containing soluble filaments is provided. 1. A process for coforming a plurality of soluble filaments and a plurality of solid additives , the process comprising the steps of:a. spinning a plurality of soluble filaments from one or more dies;b. commingling the plurality of soluble filaments with a plurality of solid additives; andc. collecting the commingled soluble filaments and solid additives in a formation zone on a collection device to form a composite structure.2. The process according to wherein the step of spinning further comprises the step of providing a filament-forming composition comprising one or more filament-forming materials to the one or more dies.3. The process according to wherein the step of commingling comprises introducing the solid additives into the plurality of soluble filaments between at least one of the dies and the collection device.4. The process according to wherein the soluble filaments comprise filament forming material which is a polymer.5. The process according to wherein the polymer comprises polyvinyl alcohol.6. The process according to wherein at least one of the soluble filaments comprises one or more active agents present within the filament.7. The process according to wherein at least one of the one or more active agents comprises a surfactant.8. The process according to wherein the solid additives comprise particles.9. The process according to wherein the particles comprise water-soluble particles.10. The process according to wherein the particles comprise water-insoluble particles.11. The process according to wherein at least one of the particles is an agglomerate.12. The process according to wherein the particles exhibit a D50 particle ...

WHOLLY AROMATIC POLYAMIDE FIBER

A wholly aromatic polyamide fiber has a reduced total fineness and a reduced single yarn fineness and is also excellent in quality and reinforcing property. The wholly aromatic polyamide fiber is characterized in that it has a single yarn fineness of 0. 4 dtex to 3. 5 dtex, a total fineness of 5 dtex to 30 dtex, a breaking strength of 15 cN/dtex or more, an initial tensile modulus of 500 cN/dtex to 750 cN/dtex, and the number of fibrils of less than 100/m. 1. A wholly aromatic polyamide fiber characterized in that it has a single yarn fineness of 0.4 dtex to 3.5 dtex , a total fineness of 5 dtex to 30 dtex , a breaking strength of 15 cN/dtex or more , an initial tensile modulus of 500 cN/dtex to 750 cN/dtex , and the number of fibrils of less than 100/m.2. The wholly aromatic polyamide fiber according to claim 1 , characterized in that it has a variation in single yarn diameter per 1 m of less than 15%.3. The wholly aromatic polyamide fiber according to claim 1 , characterized in that it has an average value of the thickness of the twisted fiber of less than 40 μm claim 1 , [{'br': None, 'Weight (g)=fineness (dtex)/40\u2003\u2003(1)'}, {'br': None, 'Number of twists (times/m)=1055/√fineness (tex)\u2003\u2003(2).'}], 'wherein the average value of the thickness of the twisted fiber is an average value of the thicknesses determined by twisting the fiber the number of times calculated based on the following formula (2) using the weight calculated based on the following formula (1) and by measuring the thickness of the twisted fiber in the length direction of the fiber at five points 10 cm apart4. The wholly aromatic polyamide fiber according to claim 1 , characterized in that an average degree of adhesion is 10 or less.5. The wholly aromatic polyamide fiber according to claim 1 , which is a polyparaphenylene terephthalamide fiber.6. The wholly aromatic polyamide fiber according to claim 1 , which is a copolyparaphenylene 3 claim 1 , 4′-oxydiphenylene terephthalamide ...

THREE-DIMENSIONAL STRUCTURES FOR CELL OR TISSUE CULTURE

Among others, the present invention provides devices for cell or tissue culture, comprising a three-dimensional structure, which further includes fibrils with beads and/or particles. The present invention also relates to novel methods for manufacturing devices for cell or tissue culture. 1. A device for cell or tissue culture comprising a three-dimensional structure which comprises one or more fibrils and one or more beads.2. The device of claim 1 , wherein the three-dimensional structure is open and controllable.3. The device of claim 1 , wherein the three-dimensional structure comprises open pores.4. The device of claim 1 , wherein the fibrils have a size range of from 50 nm to 5 claim 1 ,000 nm.5. The device of claim 4 , wherein at least one fibril comprises an oligomer claim 4 , prepolymer claim 4 , momomer claim 4 , or polymeric material.6. The device of claim 5 , wherein the polymeric material is aliphatic polyester claim 5 , polystyrene claim 5 , polyolefin claim 5 , polysaccharide claim 5 , collagen claim 5 , gelatin claim 5 , zein claim 5 , polyvinylpyrrolidone claim 5 , hydroxypropyl methyl cellulose claim 5 , polyethylene oxide claim 5 , polyethylenimine polyvinyl alcohol claim 5 , polyamides claim 5 , or polyurethanes.7. The device of claim 6 , wherein the aliphatic polyester comprises polycarprolactone claim 6 , poly(lactate) claim 6 , poly(glycolate) claim 6 , poly(dioxanone) claim 6 , polyhydroxyalkanoates claim 6 , or a copolymer thereof.8. The device of claim 1 , wherein at least one bead is non-cytotoxic.9. The device of claim 1 , wherein at least one bead comprises an organic claim 1 , inorganic claim 1 , synthetic claim 1 , or natural material.10. The device of claim 9 , wherein at least one bead comprises powder of a natural material.11. The device of claim 10 , wherein at least one bead comprises chitosan powder claim 10 , collagen powder claim 10 , gelatin powder claim 10 , zein powder claim 10 , or a combination of these.12. The device of ...

SPINNING METHOD AND SPINNING DEVICE

A nozzle device for spinning comprising a nozzle, a polymer solution supply means that supplies a polymer solution to the nozzle and ejects the polymer solution from the nozzle tip, and a solvent vapor supply means that supplies a gas containing vapor of the same solvent as the solvent of the polymer solution at least to the vicinity of the polymer solution just ejected, and a spinning method using the nozzle device for spinning. Solidification of a spinning solution is prevented at the nozzle tip from which the spinning solution is ejected. 1. A nozzle device for spinning , comprising a nozzle , a polymer solution supply means for supplying a polymer solution to a nozzle to eject it from a nozzle tip , and a solvent vapor supply means for supplying a gas containing the vapor of the same solvent as a solvent of the polymer solution at least to the periphery of the polymer solution just ejected.2. The nozzle device for spinning according to claim 1 , wherein the device has a double tubular structure part composed of an inner tube claim 1 , the inner tube being a nozzle claim 1 , and an outer tube surrounding it claim 1 , and is configured such that a gas containing the vapor of the same solvent as the solvent of the polymer solution is supplied from a space between the inner tube and the outer tube.3. A method of spinning fibers containing a polymer claim 1 , comprising a step of ejecting a polymer solution from a nozzle tip claim 1 , wherein spinning is performed while supplying a gas containing the vapor of the same solvent as a solvent of the polymer solution at least to the periphery of the polymer solution just ejected.4. The spinning method according to claim 3 , wherein the gas to be supplied contains a substance that is in a gaseous phase under the condition at the time of spinning claim 3 , and is saturated with the vapor of the same solvent as the solvent of the polymer solution. The present invention relates to a method of spinning fibers including a ...

FIBERS COMPRISING CULTIVATED MICROALGAE, METHOD FOR MANUFACTURING THE SAME, AND YARNS, FABRICS AND GARMENTS COMPRISING SUCH FIBER.

The present invention is directed to fibers, yarns and fabrics comprising at least one cultivated microalgae. 1. A fiber comprising at least one cultivated microalgae.2. A fiber according to claim 1 , wherein said at least one at least one cultivated microalgae is selected from red algae claim 1 , brown algae claim 1 , green algae claim 1 , red algae claim 1 , blue algae and mixtures thereof.3. (canceled)4. (canceled)5. (canceled)6. A fiber according to claim 1 , wherein said at least one cultivated microalgae is grown/cultivated outside a marine environment.7. A fiber according to claim 1 , wherein said at least one cultivated microalgae comprises at least 5% of the fiber.8. A fiber according to claim 1 , being a cellulose base fiber.9. (canceled)10. A fiber according to claim 1 , being a protein based fiber.11. A fiber according to claim 1 , being a petroleum based fiber.12. (canceled)13. (canceled)14. (canceled)15. A fiber according to claim 1 , further comprising at least one of cellulose claim 1 , saccharide claim 1 , protein claim 1 , amino acid claim 1 , vitamin claim 1 , metal ion claim 1 , fiber claim 1 , unsaturated fatty acid claim 1 , anti-irritating agent claim 1 , anti-inflammatory agent claim 1 , anti-oxidant claim 1 , anti-viral agent or zeaxanthine claim 1 , fluridoside and any combinations thereof.16. (canceled)17. (canceled)18. (canceled)19. (canceled)20. (canceled)21. A yarn claim 1 , a fabric or garment comprising fibers according to .22. (canceled)23. (canceled)24. (canceled)25. A method of manufacturing a fiber comprising the steps of: (a) preparing a base material comprising at least 5% of at least one cultivated microalgae; (b) forming the fiber from said base material through spinneret; (c) fixating the formed fiber; (d) post-treating the fixated fiber.26. (canceled)27. A method according to claim 25 , wherein said base material is melted at step (a).28. A method according to claim 25 , wherein fiber fixation of step (c) is performed by ...

Non-round solution spun spandex filaments and methods and devices for production thereof

Non-round or shaped solution spun spandex filaments as well as methods and devices for production of these non-round or shaped solution spun spandex filaments are provided.

SILICONE OIL ELIMINATION FROM SPANDEX POLYMER SPINNING SOLUTIONS

A method of making polyurethane or polyurethane urea strands containing siloxane in the polyurethane or polyurethane urea backbone including the steps of: (a) reacting a macroglycol with a diisocyanate to form a prepolymer; (b) reacting the prepolymer with a diamine to form a spinning solution; (c) spinning the spinning solution to form polyurethane or polyurethane urea strands, wherein: i. a diol-polydimethylsiloxane is reacted with the macroglycol and the diisocyanate in step (a); ii. a diamine-polydimethylsiloxane is reacted with the prepolymer prior to the reaction of the prepolymer with the diamine in step (b); or iii. a diamine-polydimethylsiloxane is reacted at the same time as the prepolymer and diamine in step (b), and wherein the polyurethane or polyurethane urea strands comprise less than or equal to 6% of siloxane by weight based on the weight of the polyurethane or polyurethane urea strands and elastic fibers made thereby. An elastic fiber including two or more polyurethane or polyurethane urea strands including siloxane in the polyurethane or polyurethane urea backbone that are bundled together, wherein the siloxane is present in an amount of greater than or equal to 0.01% and less than or equal to 4.0% by weight based on the weight of the fiber. In some aspects, the siloxane is free of urethane radicals. 2. A method according to claim 1 , wherein the siloxane is free of any urethane radical.3. A method according to claim 1 , wherein the polyurethane or polyurethane urea strands comprise greater than 0.01% and less than or equal to 4% of siloxane by weight based on the weight of the polyurethane or polyurethane urea strands.4. A method according to claim 1 , wherein the diamine-polydimethylsiloxane or diol-polydimethylsiloxane has a molecular weight between about 1 claim 1 ,460 and about 5 claim 1 ,600 grams per mole.5. A method according to claim 1 , further comprising coalescing 2 or more of the siloxane-containing polyurethane or polyurethane urea ...

METHOD OF DRY-SPINNING PARA-ARAMID FIBER

The present invention provides a method for manufacturing para-aramid fibers, which includes: spinning a polymeric solution containing aramid polymer in an organic solvent through a spinneret into an inert gas to partially remove the organic solvent contained in the spun fiber; contacting the spun fiber with conditioning solution, so as to maintain residual water in fiber in a range of 10 to 15%; and subjecting the treated fiber to drawing, washing and heating in a dry-spinning manner. The present invention may greatly reduce energy consumption and costs for recovery of the solvent, as compared to a conventional manufacturing method of aramid fiber in a wet-spinning manner. Further, the present invention may solve conventional problems such as corrosion of apparatus, deterioration of working environments, or the like, since a concentrated sulfuric acid solvent is not used in a spinning process. Still further, the present invention may conduct drawing and heating after maintaining the residual water in fiber in a range of 10 to 15% before drawing, thereby remarkably improving the strength and elastic modulus of the fiber. 2. The method according to claim 1 , wherein the conditioning solution is injected to the fiber which has passed through the inert gas to be in contact with the same.3. The method according to claim 1 , wherein the conditioning solution contains 5 to 40 wt. % of organic solvent and 1 to 10 wt. % of inorganic salt claim 1 , and has a temperature of 30 to 100° C. The present invention relates to a method of dry-spinning para-aramid fiber, and more particularly, to a dry-spinning method of para-aramid fiber by manufacturing the para-aramid fiber through a dry-spinning manner so that a solvent may be easily recovered and strength and elastic modulus of a fiber may be remarkably improved.Aromatic aramid commonly called aramid includes para-aramid with a structure of benzene rings straightly linked through amide group (CONH) and meta-aramid without the ...

MODIFIED AEROGEL POWDER WITH SPECIAL FUNCTION GROUP FOR USE IN PLASTIC COMPOSITE AND FIBER SPINNING AND PREPARATION METHOD THEREOF

A surface modified aerogel powder with special function group for used in plastic composite and fiber spinning applications are made from the following steps: (1) mixing step; (2) hydrolysis step; (3) condensation step within dispersion condition; (4) surface modification step; (5) solvent evaporation and drying step. 1. A method for manufacturing a function group modified aerogel particle for textile and fiber spinning , comprising:mixing step: blending an alkoxysilane compound mixed with a function group modified alkoxysilane compound and an organic solvent to form a mixture solution;hydrolysis step: adding one acid catalyst to the mixture solution for the hydrolysis reaction;condensation plus dispersion step: adding one base catalyst to the mixture solution for condensation reaction, and then adding a dispersing solvent during the condensation reaction with rapid stir, so that the mixture solution forms function group modified aerogel particles after gelation and dispersion;surface function group modification step: adding a surface modifier into the function group modified aerogel particles to further modify function group on the surface of each function group modified aerogel particle; andsolvent evaporation and drying step: when the surface modified aerogel particles are formed in the dispersion solvent, evaporating the solvent at a high temperature or filtrating the surface modified aerogel particles with a colander, and later removing the solvent in a high-temperature dry oven to obtain the dried surface modified aerogel powder.2. The manufacturing method of a function group modified aerogel particle for textile and fiber spinning as claimed in claim 1 , wherein the function group modified alkoxysilane compound is a hydrophilic function group modified alkoxysilane compound selected from the group consisting of R group-trimethoxysilane (R-TMS) and R group-triethoxysilane (R-TES); each R group is a hydrophilic group comprising a carboxyl group (—COOH) claim 1 , ...

FIBER DEPOSIT PRODUCTION METHOD, MEMBRANE PRODUCTION METHOD, AND MEMBRANE ADHESION METHOD

A fiber collection tool for collecting a fiber spun by electrospinning is described. The fiber collection tool has a size holdable by the hand of a user, and includes, in its interior, an electroconductive section. Preferably, the fiber collection tool further includes a surface section outside the electroconductive section. In a fiber deposit production method, a user collects, with the fiber collection tool, a fiber spun by the user by performing electrospinning using an electrospinning device having a size holdable by the hand of the user, and thereby produces a film including a deposit of the fiber on a surface of the fiber collection tool. The fiber collection tool, having the deposit formed thereon, is pressed against a surface of an object, and the deposit is transferred onto the surface of the object, to form a film including the fiber deposit on the surface of the object. 115-. (canceled)16. A method for producing a fiber deposit , the method comprising:collecting a fiber with a fiber collection tool, the fiber being spun by a user by performing electrospinning using an electrospinning device; andproducing a deposit of the fiber on a surface of the fiber collection tool,wherein: 'the user holds the fiber collection tool with a hand; or', 'the fiber collection tool includes, in its interior, an electroconductive section, and the electrospinning is performed in in a state wherethe user holds an electric conductor by a hand, and the electric conductor is in contact with the fiber collection tool.17. A method for producing a fiber deposit , comprising:collecting a fiber with a fiber collection tool, the fiber being spun by a user by performing electrospinning using an electrospinning device; andproducing a deposit of the fiber on a surface of the fiber collection tool,wherein:the fiber collection tool includes, in its interior, an electroconductive section, andthe electroconductive section of the fiber collection tool is made from a material deformable by ...

Apparatus and method for forming fibers

一种利用溶液吹纺技术制备定向排列纤维的装置和方法

本发明公开了一种利用溶液吹纺技术制备定向排列纤维的装置和方法，包括溶液吹纺系统和利用气流定向排列的纤维收集系统，溶液吹纺系统包括纺丝溶液、气流控制系统和吹纺装置，吹纺装置和纺丝溶液、气流控制系统连接，纺丝收集系统包括平铺收集网，平铺收集网与负压装置连接，通过调节纺丝气流与平铺收集网的角度，溶液吹纺系统利用高速气流作为定向驱动力，在平铺收集网上收集得到定向排列的纳米纤维。本发明操作相对简单，可调控参数多、精度高，制备得到的纤维排列程度高，制备量大，均一性较好。

폴리우레탄계 탄성섬유의 제조방법

본 발명은 분자량이 1000~3000인 폴리에테르 디올 및 분자량이 500~3000인 폴리카보네이트 디올로 구성된 디올화합물,제 3 급 아미노기를 최소한 1개 포함하는 것으로 아미노기 2~7개를 갖고 탄소수 3~12개인 폴리올 및 디이소시아네이트화합물을 혼합하여 예비중합물을 제조한 다음, 용제와 일정비율로 혼합한 후, 쇄성장제와 쇄정지제를 첨가하여 방사에 적당한 점도의 중합체를 제조한 후 내열성 향상제를 첨가함을 특징으로 하는 폴리우레탄계 탄성섬유의 제조방법에 관한 것이다.

一种耐热聚氨酯弹性纤维及其制备方法

本发明涉及一种耐热聚氨酯弹性纤维及其制备方法，制备步骤为：先将二异氰酸酯与端羟基聚醚混合后进行预聚合反应得到预聚体1，同时将二异氰酸酯、端胺基聚醚与碱金属混合后进行预聚合反应得到预聚体2；分别溶解得到预聚体1溶液和预聚体2溶液；混合两溶液后加入扩链剂和终止剂进行扩链反应得到聚氨酯溶液；最终纺丝得到耐热聚氨酯弹性纤维。最终产品分子主链上同时含有两种硬段结构，产品在保证优良的弹力性能的同时还具有优良的耐热性能，具有巨大的经济价值。本发明的制备方法，工艺简单、安全环保、便于大规模生产，具有极佳的推广价值。

Spandex from high molecular weight poly (tetramethylene-co-ethyleneether) glycols

The invention provides polyurethaneurea compositions comprising poly(tetrarnethylene-co-ethyleneether) glycol having high number average molecular weight, from about 1900 to about 4000 Dalton. The invention further relates to the use of high number average molecular weight poly(tetramethylene-co-ethyleneether) glycol as the soft segment base material in spandex compositions. The invention also relates to new polyurethane compositions comprising poly(tetramethylene-co- ethyleneether) glycols with such high number average molecular weight, from about 1900 to about 4000 Dalton, and their use in spandex.

Method for manufacturing carbon fiber

본 발명은 탄소섬유 제조방법에 관한 것으로, 폴리아크릴로니트릴(PAN)계 탄소섬유의 전구체인 PAN계 중합체를 포함하는 방사용액을 습식 방사, 건식 방사 또는 건습식 방사하여 프리커서를 얻은 후, 이것을 200~400℃의 산화로에서 가열하여 내염화 섬유로 전환시키고, 적어도 1000℃의 온도의 불활성 분위기하에서 탄소화하여 제조되는 탄소섬유 제조방법에 있어서; 상기 프리커서는, 방사시 30~50m/min의 낮은 토출 선속도로 토출되어 낮은 연신배율을 갖도록 제조되고; 이렇게 제조된 프리커서를 산화로에서 내염화처리할 때 내염화 초기단계에서 열연신하는 것을 특징으로 하는 탄소섬유 제조방법을 제공한다. The present invention relates to a method for producing carbon fibers, wherein a spinning solution containing a PAN polymer, which is a precursor of polyacrylonitrile (PAN) carbon fiber, is wet-spun, dry-spun or dry-wet-spun to obtain a precursor. A carbon fiber production method produced by heating in an oxidation furnace at 200-400 ° C. to convert it into flame resistant fiber and carbonizing in an inert atmosphere at a temperature of at least 1000 ° C .; The precursor is manufactured to have a low draw ratio by being discharged at a low discharge linear velocity of 30-50 m / min during spinning; The precursor prepared in this way provides a carbon fiber manufacturing method characterized in that the thermal stretching in the initial stage of the flame resistance when subjected to the flame resistance treatment in the oxidation furnace. 본 발명에 따르면, 프리커서의 생산성과 연신배율의 향상을 통한 고물성 탄소섬유 제조가 가능하여 탄소섬유의 제조원가를 낮출 수 있고, 나아가 방사에 따른 조업성을 향상시키는 효과를 얻을 수 있다. According to the present invention, it is possible to manufacture a high-performance carbon fiber through the improvement of the productivity and the draw ratio of the precursor to reduce the manufacturing cost of the carbon fiber, it is possible to obtain the effect of improving the operability according to the spinning. 탄소섬유, 전구체 섬유, 프리커서, 연신배율, 고물성 Carbon fiber, precursor fiber, precursor, draw ratio, high physical properties

Methods, apparatus, and systems for fabrication of polymeric nano- and micro-fibers in aligned configurations

Provided herein are apparatus and systems for fabricating highly aligned arrays of polymeric fibers having isodiameters ranging from sub 50 nm to microns with lengths of several millimeters. The approach disclosed herein uses (e.g.) a micropipette to deliver polymeric solution which is collected in the form of aligned fibers on a rotating and linearly translating substrate. The methods deposit polymeric fibers on spherical surfaces and gapped surfaces with precise control, thus heralding new opportunities for a variety of applications employing polymeric fibers. The design workspace for depositing fibers disclosed herein is dependent upon processing parameters of rotational/linear translational speeds and material properties of solution rheologies. Techniques for fabrication of multilayer fiber arrays, for fabrication of cell growth scaffolds and for attachment of particles to the fiber arrays are also disclosed.

Polyurethaneurea elastic fiber with high uniformity and excellent heat settable property

The present invention relates to a polyurethaneurea elastic fiber produced by the steps of: 1) producing pre-polymer by using a composition including 2 to 25 mol% of 2,4′ diphenylmethane diisocyanate with respect to total weight of diisocyanate; 2) adding a chain extender to the pre-polymer to 3) obtain polyurethaneurea polymer having 40 mol% or more of a solidity content; ripening and spinning a polyurethaneurea spinning solution obtained by stirring the polyurethaneurea polymer. Since a polyurethaneurea elastic fiber produced by the steps has excellent uniformity and heat settable properties, and union cloth/knitted fabric using the elastic fiber has uniformity which is not deteriorated, a quality of the fabric is excellent, and since the elastic fiber is heat settable at low temperatures, thermal embrittlement of a relative fabric is prevented, thereby presenting excellent effects in yellowing and touch of the union cloth/knitted fabrics.

Process for the production of polymer filaments having high tensile strength

An improved process for the preparation of polymer filaments having a high tensile strength and modulus by spinning a solution of high-molecular weight polymer and thereafter stretching the filament thus formed. A solution of an ethylene polymer or copolymer, containing at least 80 percent by weight solvent, is spun at a temperature above the gel point of the solution. The ethylene polymer or copolymer contains at most about 5 percent by weight of an alkene having 3 to 8 carbon atoms, has a weight-average molecular weight Mw higher than 4×10 5 kg/kmole, and has a weight/number average molecular weight ratio Mw/Mn lower than 5. The spun polymer solution is thereafter cooled to a temperature below its gel point to form a gel filament, which gel filament is thereafter stretched to form a polymer filament having a tensile strength of at least about 1.5 GPa at room temperature.

METHOD FOR PRODUCING POLYMER FIBERS WITH HIGH TENSILE STRENGTH AND HIGH MODULE.

Trough of spinning bath

FIELD: textiles, paper. SUBSTANCE: invention relates to a trough of spinning bath containing a trough for receiving liquid of the spinning bath, at least one roller provided inside the trough for guiding the spun fibres, and a system for supplying and draining the liquid for the spinning bath. According to the invention, it is provided that the trough (SBW) of the spinning bath has a structure which is used for wet spinning through the spinning nozzle (SD) located inside the liquid (SBF) of the spinning bath, and for dry/wet spinning through the spinning nozzle (SD) located above the liquid (SBF) of the spinning bath. EFFECT: enhancement of the technological capabilities. 4 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 541 284 C1 (51) МПК D01D 5/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2014101030/12, 06.06.2012 (24) Дата начала отсчета срока действия патента: 06.06.2012 (72) Автор(ы): ГЛАВИОН Эрвин (DE), ЦЕНКЕР Дитер (DE) (73) Патентообладатель(и): ТРЮТЦШЛЕР НОНВОУВЕНЗ ГМБХ (DE) Приоритет(ы): (30) Конвенционный приоритет: R U 15.06.2011 DE 102011104194.3 (45) Опубликовано: 10.02.2015 Бюл. № 4 2 5 4 1 2 8 4 (56) Список документов, цитированных в отчете о поиске: SU 1612003 A1, 07.12.1990. RU 2132418 C1, 27.06.1999. US 6036895 A, 14.03.2000. SU 452634 A1, 05.12.1974. RU 2027283 C1, 20.01.1995 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.01.2014 (86) Заявка PCT: EP 2012/060686 (06.06.2012) 2 5 4 1 2 8 4 R U WO 2012/171835 (20.12.2012) C 1 C 1 (87) Публикация заявки PCT: Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) КОРЫТО ПРЯДИЛЬНОЙ ВАННЫ (57) Реферат: Изобретение относится к корыту прядильной ванны, содержащему корыто для приема жидкости прядильной ванны, по меньшей мере один ролик, обеспеченный внутри корыта, для направления спряденных волокон, и систему подачи и слива для жидкости ...

METHOD FOR MANUFACTURING POLYETHENE FILAMENTS WITH GREAT TENSILE STRENGTH

Spinning bath vat

本发明涉及一种纺丝浴槽，包括：水槽，用于容纳纺丝浴液；设置在该水槽内的至少一个滚筒，用于引导纺丝长丝；以及用于纺丝浴液的引入与排出系统。根据本发明提出，纺丝浴槽（SBW）具有一种设计，该设计可用于通过设置在纺丝浴液（SBF）内的喷丝嘴（SD）进行湿纺并且可用于通过设置在纺丝浴液（SBF）之上的喷丝嘴（SD）进行干/湿纺。

A kind of nano-fiber material for the extraction of uranium from seawater and preparation method thereof

本发明公开了一种用于海水提铀的纳米纤维材料的制备方法，包括以下步骤：将聚丙烯腈偕胺肟化处理后得到偕胺肟化聚丙烯腈；利用压缩气流将偕胺肟化聚丙烯腈溶液吹拉为纳米纤维，后用接收装置收集；偕胺肟化聚丙烯腈的溶液浓度为5wt％‑20wt％。采用本发明提供的制备方法，条件温和、过程简便、成本低廉，克服了先制备聚丙烯腈纤维再胺肟化改性所导致的纤维严重收缩、脆断等问题，克服了熔喷工艺中复杂的高温熔融加热组件及其高能耗缺陷，同时克服了静电纺丝工艺中高压电场组件及其参数难以控制缺陷，不受收集装置的限制，易于规模化生产。通过控制溶液浓度和工艺参数，提高其比表面积，增加吸附位点和扩散速率，从而获得高吸附性的海水提铀纳米纤维材料。

Bicomponent spandex with reduced friction

Disclosed herein are spandex fibers having reduced friction. The spandex fibers have a sheath-core cross-section with a lubricating additive is included in the sheath. A fusing additive is optionally included where a coalesced multifilament spandex yarn is desired.

Antibacterial spandex using organic antibacterial agent

The present invention provides an antibacterial spandex comprising at least one of Dichloro-2-n-octyl-4-isothiazolin-3-one and Propylene glycol phenyl ether as an organic antimicrobial agent.

Rapid plasticization of quenched yarns

본 발명은 중합체, 염, 용매 및 물의 농도를 갖는 중합체 용액으로부터 섬유를 제조하는 연속 건식 방사 방법에 관한 것이다. 섬유가 압출 및 급냉된 후, 섬유는 용매, 염 및 물의 농도를 포함하는 컨디셔닝 용액과 접촉하여 배치된다. 컨디셔닝 용액은 연신되기 전에 섬유를 가소화시키도록 섬유에 작용한다. 컨디셔닝 용액은 섬유가 연신을 위해 필요한 정도까지 가소화되게 하지만 섬유를 중합체 용액 내로 재용해시키는 정도까지 섬유를 가소화시키지 않도록 용매, 염 및 물의 농도를 갖는다. 이 방법으로부터 제조된 열처리된 섬유는 개선된 수축을 갖고 더 짙은 색조로 착색될 수 있다. The present invention relates to a continuous dry spinning process for producing fibers from a polymer solution having a concentration of polymer, salt, solvent and water. After the fibers are extruded and quenched, the fibers are placed in contact with a conditioning solution comprising a concentration of solvent, salt and water. The conditioning solution acts on the fibers to plasticize the fibers before stretching. The conditioning solution has a concentration of solvent, salt and water such that the fiber is plasticized to the extent necessary for stretching but does not plasticize the fiber to the extent that the fiber is redissolved in the polymer solution. The heat treated fibers produced from this process can have improved shrinkage and can be colored with a darker hue.

Polyurethaneurea elastic fiber with low temperature workability

본 발명은, 저온 가공성 폴리우레탄우레아 탄성사에 관한 것으로서, 보다 상세히는, 폴리올, 및 디이소시아네이트가 1차 중합하여 예비중합체를 형성하고, 상기 예비중합체, 제1사슬연장제, 및 제2사슬연장제가 2차 중합하여 형성되는 폴리우레탄우레아 탄성사로서, 상기 제1사슬연장제는, 방향족, 지방족, 및 지환족 아민류 중에서 선택되어지는 1종 이상이고, 상기 제2사슬연장제는, 방향족, 지방족, 및 저분자량 디올에서 선택되어지는 1종 이상인 것을 특징으로 하는 폴리우레탄우레아 탄성사에 관한 것이다. 본 발명의 폴리우레탄우레아 탄성사는, 원사 균일성 및 작업성이 개선되고 열세트성이 향상됨으로써, 낮은 온도에서 열세팅을 실시하여 상대사의 열적 취화가 일어나지 않아 원단의 태(touch)를 향상시킬 수 있고 열세팅 후의 가공지의 변무말림을 방지할 수 있다. TECHNICAL FIELD The present invention relates to a low-temperature processable polyurethane-urea elastic yarn, and more particularly, to a process for producing a polyurethane-urea elastomeric yarn by a first-order polymerization of a polyol and a diisocyanate to form a prepolymer, the prepolymer, Wherein the first chain extender is at least one selected from aromatic, aliphatic and alicyclic amines, and the second chain extender is at least one selected from the group consisting of aromatic, aliphatic, And at least one selected from low-molecular-weight diols. The polyurethane-urea elastic yarn of the present invention improves yarn uniformity and workability and improves the heat setting property, so that thermal setting is performed at a low temperature so that thermal embrittlement of the counterpart yarn does not occur and the touch of the fabric can be improved And it is possible to prevent the change of the processed paper after heat setting.

Stabilized spandex

본 발명의 스판덱스 섬유는 세그먼트 폴리우레탄 중합체, 및 스판덱스 섬유 총 중량을 기준으로, (A) 힌더드 페놀계 화합물 0.5∼3 중량%, (B) 세미카바지드계 화합물 0.2∼2 중량%, (C) 3급 질소원자를 포함하는 폴리우레탄 0.2∼5 중량%, 및 (D) 산화아연 1∼5 중량%를 포함한다. The spandex fiber of the present invention is based on the total weight of the segmented polyurethane polymer and the spandex fiber, (A) hindered phenolic compound 0.5 to 3% by weight, (B) 0.2 to 2% by weight of semicarbazide-based compound, (C ) 0.2 to 5% by weight of a polyurethane containing tertiary nitrogen atoms, and (D) 1 to 5% by weight of zinc oxide.

A polyurethane urea elastic fiber, and a process of preparing for the same

본 발명은 폴리우레탄우레아 탄성섬유 및 그의 제조방법에 관한 것으로서, 폴리우레탄우레아 중합시 물을 첨가하여 중합시 겔(Gel) 발생을 억제하므로서 조업성 및 폴리우레탄우레아 탄성섬유의 물성을 향상시킴을 특징으로 한다. 본 발명의 제조방법은 중합시 겔(Gel) 발생이 적어 필터의 교체주기가 연장되고 절사 및 웨이브(wave)사 발생율을 낮출 수 있다. 본 발명의 폴리우레탄우레아 탄성섬유는 신장시 모듈러스 변화가 작아(100% 신장시 모듈러스 대비 300% 신장시 모듈러스 증가율 : 5~20%) 후가공이 용이하며 의류 제조시 착용감도 우수하다. The present invention relates to a polyurethane urea elastic fiber and a method of manufacturing the same, by adding water during the polymerization of polyurethane urea to suppress the generation of gel (Gel) during polymerization characterized by improving the operability and physical properties of the polyurethane urea elastic fiber. It is done. In the manufacturing method of the present invention, since the generation of gel during polymerization is small, the replacement cycle of the filter is extended, and the incidence of cut and wave yarns can be lowered. Polyurethane urea elastic fiber of the present invention has a small modulus change when elongated (300% elongation modulus when compared to 100% elongation: 5 ~ 20%) is easy to post-processing and excellent wearing comfort when manufacturing clothes.

Polyurethanurea elastic fiber having a high resilience and method of manufacturing the same

본 발명은, 응력유지율이 우수한 폴리우레탄우레아 탄성사 및 이의 제조방법에 관한 것으로서, 보다 상세히는, 폴리올과 디이소시아네이트를 반응시켜 폴리우레탄을 1차 중합하여 예비 중합체를 수득한 후, 상기 예비 중합체를 용매에 용해시키고 사슬연장제 및 사슬종결제를 첨가하여 2차 중합을 수행하여 수득한 방사원액을 방사시켜 제조되는 폴리우레탄우레아 탄성사에 있어서, 상기 폴리올은, 제 1 폴리올과 제 2 폴리올의 적어도 1종 이상의 것이고, 폴리우레탄우레아 탄성사의 응력유지율은 70% 이상인 것을 특징으로 한다. 본 발명의 폴리우레탄우레아 탄성사는 상기 방법으로 제조한 폴리우레탄우레아 탄성사는 내열성 및 균일성의 저하 없이 응력유지율이 적어도 70% 이상인 효과가 있으며, 상기 탄성사를 사용한 교 편직물은 촉감(soft handfeeling)과 피팅(fitting)성을 나타낸다.

Spinning cell and method for dry spinning spandex

본 발명은 사각 바에서의 방사구 모세관 군들의 비균일한 배열로부터 필라멘트를 압출하고 이 필라멘트를 고온 비활성 가스의 교류와 접촉하게 함으로써 스판덱스를 건식 스피닝하는 스피닝 셀을 제공하는 것이다. The present invention provides a spinning cell for dry spinning the spandex by extruding a filament from a non-uniform arrangement of spinneret capillary groups in a square bar and bringing the filament in contact with an alternating flow of hot inert gas.

The polyurethane system elastic fiber manufacture method

본 발명은 탄성력, 탄성회복력 등의 물성이 우수하여 스타킹이나 여성용 속옷류 및 스포츠의류등에 사용되는 폴리우레탄 탄성섬유의 제조방법에 관한 것으로, 특히 내열성, 해사성 및 방사속도의 향상을 그 목적으로 한 것이다. The present invention relates to a method for producing a polyurethane elastic fiber used in stockings, women's underwear and sports clothing with excellent physical properties such as elasticity, elastic recovery, etc., and particularly to improve the heat resistance, maritime resistance and spinning speed. . 본 발명은 구체적으로 폴리에테르 디올과 폴리카보네이트계 디올을 혼합시킨 장쇄 디올과 아미노기수 2-7개, 탄소수 3-12개의 폴리올을 과잉의 유기디이소시아네이트 화합물과 예비중합하여 용제와 일정비율로 혼합시킨 후 쇄성장제와 쇄정지제를 사용하여 제조된 중합물에 본 발명에서 사용되는 내열성 향상첨가제와 해사성 향상첨가제를 첨가한 중합물을 사용하여 제조하는 것을 특징으로 하는 폴리우레탄 탄성섬유의 제조방법에 관한 것으로서, 이와 같은 제조방법을 사용하는 경우 기존의 탄성섬유에 비해 용매의 투입량을 현저하게 감소시킬 수 있기 때문에 용매증발을 위한 과도한 열량을 사용하지 않게 되어 섬유표면의 손상이 적고 따라서 방사성이 향상되어 생산성을 증진시킬 수 있을뿐만 아니라 내열성 및 해사성의 향상을 도모할 수 있는 것이다. In the present invention, a long-chain diol in which a polyether diol and a polycarbonate-based diol are mixed, a polyol having 2-7 amino groups and 3-12 carbon atoms is prepolymerized with an excess of an organic diisocyanate compound to be mixed with a solvent at a constant ratio. Regarding a method for producing a polyurethane elastic fiber, characterized in that the polymer produced by using the post-chain growth agent and the chain stopper is prepared using a polymer added with the heat resistance improving additive and the nautical resistance improving additive used in the present invention. In this case, the use of such a manufacturing method can significantly reduce the amount of solvent input compared to the conventional elastic fibers, so that excessive heat for solvent evaporation is not used. Not only can it improve the heat resistance, but also improve the heat resistance and maritime resistance. A.

FILTER MATERIALS AND FILTERS MADE FROM THEM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 142 581 A (51) МПК A24D 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016142581, 27.03.2015 (71) Заявитель(и): БРИТИШ АМЕРИКЭН ТОБЭККО (ИНВЕСТМЕНТС) ЛИМИТЕД (GB) Приоритет(ы): (30) Конвенционный приоритет: 31.03.2014 GB 1405757.4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.10.2016 R U (43) Дата публикации заявки: 04.05.2018 Бюл. № 13 (72) Автор(ы): БРЭНТОН Питер (GB), ГАЛАТИ Роуз (GB), ГРИРСОН Гордон (GB), СЭМПСОН Джон (GB) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/150751 (08.10.2015) R U (54) ФИЛЬТРОВАЛЬНЫЕ МАТЕРИАЛЫ И ИЗГОТОВЛЕННЫЕ ИЗ НИХ ФИЛЬТРЫ (57) Формула изобретения 1. Фильтровальный материал для включения в состав курительного изделия, в котором фильтровальный материал находится в форме волокнистого жгута, содержащего тонкие волокна ацетата целлюлозы, имеющие средний диаметр от около 1 мкм до примерно 10 мкм. 2. Фильтровальный материал по п. 1, в котором жгут формируют из волокон и, по меньшей мере, около 80 мас.% волокон представляют собой тонкие волокна ацетата целлюлозы. 3. Фильтровальный материал по любому из предшествующих пунктов, в котором тонкие волокна ацетата целлюлозы имеют диаметр не менее 0,3 мкм. 4. Фильтровальный материал по любому из предшествующих пунктов, в котором тонкие волокна ацетата целлюлозы содержат ацетат целлюлозы и добавку. 5. Фильтровальный материал по любому из предшествующих пунктов, который дополнительно содержит пластификатор, который представляет собой одно или несколько веществ, выбранных из группы, состоящей из триацетина, полиэтиленгликоля, триэтилцитрата и диацетата триэтиленгликоля. 6. Фильтровальный материал по любому из предшествующих пунктов, который удаляет из табачного дыма от около 50% до примерно 90% фенола. 7. Фильтровальный материал по любому из предшествующих пунктов, который удаляет из табачного дыма от около 50% до примерно 90% крезола. Стр.: 1 A 2 0 1 6 1 4 2 5 8 1 ...

Antibacterial nanofiber and preparation method and application thereof

本发明涉及一种抗菌纳米纤维及其制备方法和用途，使用的纺丝工艺简单，不需要使用电场，所制备的纳米纤维直径较静电纺丝纤维直径要小的多，可达260‑420nm，由于采用硅烷偶联剂对纳米氢氧化镁和二氧化钛进行预处理，避免了无机粒子间的团聚，有助于提高其分散性，同时，硫化锌和二氧化钛作为抗菌材料，当其两者共同使用时，具有长久的抗菌效果。此外，本发明制备得到的抗菌纳米纤维力学性能良好，抗菌性能较好，能够达到98％以上，且水洗40次后仍具有较好的抗菌性，抗菌率仍可达90％以上。

Patent RU2016142581A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 142 581 A (51) МПК A24D 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016142581, 27.03.2015 (71) Заявитель(и): БРИТИШ АМЕРИКЭН ТОБЭККО (ИНВЕСТМЕНТС) ЛИМИТЕД (GB) Приоритет(ы): (30) Конвенционный приоритет: 31.03.2014 GB 1405757.4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 31.10.2016 R U (43) Дата публикации заявки: 04.05.2018 Бюл. № 13 (72) Автор(ы): БРЭНТОН Питер (GB), ГАЛАТИ Роуз (GB), ГРИРСОН Гордон (GB), СЭМПСОН Джон (GB) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/150751 (08.10.2015) R U (54) ФИЛЬТРОВАЛЬНЫЕ МАТЕРИАЛЫ И ИЗГОТОВЛЕННЫЕ ИЗ НИХ ФИЛЬТРЫ (57) Формула изобретения 1. Фильтровальный материал для включения в состав курительного изделия, в котором фильтровальный материал находится в форме волокнистого жгута, содержащего тонкие волокна ацетата целлюлозы, имеющие средний диаметр от около 1 мкм до примерно 10 мкм. 2. Фильтровальный материал по п. 1, в котором жгут формируют из волокон и, по меньшей мере, около 80 мас.% волокон представляют собой тонкие волокна ацетата целлюлозы. 3. Фильтровальный материал по любому из предшествующих пунктов, в котором тонкие волокна ацетата целлюлозы имеют диаметр не менее 0,3 мкм. 4. Фильтровальный материал по любому из предшествующих пунктов, в котором тонкие волокна ацетата целлюлозы содержат ацетат целлюлозы и добавку. 5. Фильтровальный материал по любому из предшествующих пунктов, который дополнительно содержит пластификатор, который представляет собой одно или несколько веществ, выбранных из группы, состоящей из триацетина, полиэтиленгликоля, триэтилцитрата и диацетата триэтиленгликоля. 6. Фильтровальный материал по любому из предшествующих пунктов, который удаляет из табачного дыма от около 50% до примерно 90% фенола. 7. Фильтровальный материал по любому из предшествующих пунктов, который удаляет из табачного дыма от около 50% до примерно 90% крезола. Стр.: 1 A 2 0 1 6 1 4 2 5 8 1 ...

Manufacturing method of polyurethaneurea elastic fiber by high speed spinning method

본 발명은 폴리올, 제 1디이소시아네이트, 제 2디이소시아네이트 및 사슬 연장제를 기재로 하는 폴리우레탄우레아를 포함하는 탄성사로서, 상기 제 1 디이소시아네이트는 방향족, 지방족 및 지환족 디이소시아네이트 중에서 선택된 1종 또는 2종 이상의 유기 디이소시아네이트이고, 상기 제 2디이소시아네이트는 1,4-비스(이소시아나토메틸)싸이클로헥산(1,4-H 6 XDI) 이며, 제 2디이소시아네이트는 전체 디이소시아네이트의 약 2 내지 약 25몰%를 함유하며 고속방사(방사속도 900m/min 이상)를 하더라도 기존과 유사한 신도 물성을 얻을 수 있는 고속방사용 폴리우레탄우레아 탄성사의 제조방법에 관한 것이다. The present invention relates to an elastic yarn comprising a polyol, a first diisocyanate, a second diisocyanate and a polyurethane urea based on a chain extender, wherein the first diisocyanate is one selected from aromatic, aliphatic and alicyclic diisocyanates or Two or more organic diisocyanates, the second diisocyanate is 1,4-bis (isocyanatomethyl) cyclohexane (1,4-H 6 XDI), and the second diisocyanate is about 2 to about 2 of the total diisocyanates Containing about 25 mol% and even a high-speed spinning (more than 900m / min spinning speed) relates to a manufacturing method of high-speed spinning polyurethane urea elastic yarn that can obtain elongation properties similar to the existing.

Manufacturing method of polyurethaneurea elastic fiber by high speed spinning method

본 발명은 제 1 폴리올, 제 2 폴리올, 디이소시아네이트 및 사슬 연장제를 기재로 하는 폴리우레탄우레아를 포함하는 탄성사로서, 상기 제 1 폴리올은 무게평균 분자량 1,000-2,000 수준, 제 2폴리올은 무게평균 분자량 2,000-3,500 수준이며, 각 폴리올은 폴리에테르계 글리콜, 폴리에스테르계 글리콜, 폴리프로필렌 글리콜 1종 또는 2종 이상 혼합물 중에서 선택된 것이고, 제 2 폴리올은 전체 폴리올의 약 2 내지 약 25몰%의 범위 내로 존재하는 폴리우레탄우레아이다. 상기 방법으로 제조한 폴리우레탄우레아 탄성사는 우수한 신도를 나타내며, 고속방사를 하더라도 신도의 물성의 저하가 적을 수 있다.

Polyurethane elastic yarn and preparation method for thereof

유기용제의 사용 없이, 수성 이온성 친수성 폴리우레탄 분산액의 건식 방사 공정에 의한 폴리우레탄 탄성사의 제조방법을 제공함으로써, 친환경적이고 인체에 무해한 폴리우레탄 탄성사의 제조방법을 제공한다. By providing a method for producing a polyurethane elastic yarn by a dry spinning process of an aqueous ionic hydrophilic polyurethane dispersion without the use of an organic solvent, it provides an environmentally friendly and harmless method for producing a polyurethane elastic yarn.

A dope-dyed polyurethaneurea yarn, and a process of preparing for the same

본 발명은 폴리우레탄우레아 원착사 및 그의 제조방법에 관한 것으로서, 방사전의 폴리우레탄우레아 탄성사 중합물에 카본블랙 또는 카본블랙과 중합인산염계 분산제를 첨가하는 것을 특징으로 한다. 본 발명의 폴리우레탄우레아 원착사는 L치(심색도)가 8~40이며, 색도좌표상 a*치 및 b*치가 ±2.0 이내 이다. 그 결과, 폴리에스테르 원사 또는 나일론 원사와 교직물을 제조한 후 분산염료 또는 산성염료로 염색시 심색성 및 염색견뢰도가 매우 우수하다.

A kind of polysulfones-polyurethane-urea composite elastic fiber and preparation method thereof

本发明涉及一种聚砜‑聚氨酯脲复合弹性纤维及其制备方法，将含有特殊化学结构的相容剂与聚砜在极性非质子溶剂中搅拌混合均匀，得到聚砜溶液，将聚砜溶液加入到聚氨酯脲原液中，进一步搅拌熟化混合均匀，经干法纺丝得到聚砜/聚氨酯脲复合弹性纤维。由于特殊化学结构的相容剂存在，能有效降低聚砜和聚氨酯脲之间的表面张力，在干法纺丝成纤后使得分散相聚砜在聚氨酯体系中降低了分散尺寸，提高了分布的稳定性，两种聚合物能够稳定相容，从而使聚砜‑聚氨酯脲复合弹性纤维的机械力学强度及耐高温性能得到显著提升。

Polyketone having high strength and its manufacturing method

The present invention relates to a high strength polyketone fiber and a manufacturing method thereof, and more specifically, to a high strength polyketone fiber and a manufacturing method thereof, in which a polyketone fiber is treated with an aqueous solution obtained by dissolving polyphosphoric acid (PPA), a phosphorus compound, in water as an antioxidant before a drying process and a stretching process for manufacturing the polyketone fiber, thereby allowing the user to manufacture the high strength polyketone fiber.

Spinning tank

本发明涉及一种纺丝浴槽，包括：水槽，用于容纳纺丝浴液；设置在该水槽内的至少一个滚筒，用于引导纺丝长丝；以及用于纺丝浴液的引入与排出系统。根据本发明提出，纺丝浴槽（SBW）具有一种设计，该设计可用于通过设置在纺丝浴液（SBF）内的喷丝嘴（SD）进行湿纺并且可用于通过设置在纺丝浴液（SBF）之上的喷丝嘴（SD）进行干/湿纺。

Dope-dyed araid fiber and method of manufacturing the same

본 발명은 메타-페닐렌 디아민(M-phenylene diamine, MPD)과 이소프탈로일클로라이드(Isophthaloyl chloride, IPC)로 중합된 메타 아라미드 도프와 안료를 포함하는 마스터배치 도프 및 상기 메타 아라미드 도프를 혼합한 혼합 도프를 혼합 방사하여 제조된 아라미드 원착사 및 그의 제조방법에 관한 것으로, 균일한 안료분산으로 인해 색상 편차가 적고 일광 견뢰도가 우수한 아라미드 원착사를 제공할 수 있다.

Viscose fibre prepn. - by spinning, coagulating in a volatile gas, partially regenerating and then completely regenerating

Improvements in or relating to the treatment of textile materials

<PICT:0392904/IV/1> <PICT:0392904/IV/2> <PICT:0392904/IV/3> A yarn or thread particularly an artificial thread of cellulose acetate or other cellulose derivative is passed over absorbent material to which a controlled amount of liquid is supplied under pressure and by which the liquid is transferred to the thread. The liquid may be supplied under a gravity head or by means of a pump. The wick or pad of absorbent material is mounted in a container connected to the source of supply of liquid under pressure and is enclosed except for a gap in which the thread makes contact and through which the liquid is forced to pass. A flat or circular wick or cylindrical pad may be used. The devices may be used for applying oils, water, sizes, dyes, resists, molten waxes, de-electrifying, or other liquids to artificial threads continuously with their production, and after receiving the liquid the threads may be wound by cap-spinning or other twisting and winding devices, or by simple winding devices such as drum, bobbin, or reeling devices. The moistening devices may be used in other twisting or winding operations, or continuously with the consumption of thread in knitting machines particularly seamless hose and other circular knitting machines. They may be used for applying liquids to weft yarn for looms with stationary weft supplies. As shown in Figs. 1 and 2, artificial filaments 8 from a dry spinning cell 10 are led in the form of a thread 11 over the moistening device to a godet roller 14 and thence to a winding device. A reservoir 17 is filled to a constant level with the liquid which is to be applied to the threads. Liquid flows from the tank 17 to a header 20 provided with a number of outlet pipes 21 each of which has a valve 22. Bell mouthed U-tubes 23 are placed <PICT:0392904/IV/4> <PICT:0392904/IV/5> <PICT:0392904/IV/6> beneath the outlets 21. The shorter limbs 24 of the tubes 23 bear wick devices at their extremities. The valves 22 on ...

Patent FR2377462B2

Improvements in the treatment of cellulose derivatives

Improvements in processes and apparatus for the manufacture of artificial silk threads and the like

Improvements in the manufacture of artificial filaments or threads

Patent FR2350410B1

Further training in the construction of machines for spinning dry cellulosic collodions

Improvements in the manufacture or treatment of filaments, yarns or threads of cellulosic derivatives

Improvements in the treatment of cellulose derivatives

Improvements in processes for the manufacture of artificial silk threads and the like

Method and apparatus for dry spinning polyurethane elastic filaments

HYDROPHILIC FIBER MANUFACTURING PROCESS

L'invention se rapporte à un procédé de fabrication de filaments ou de fibres hydrophiles par filature d'une solution de polymère par un procédé de filature à sec; on met en contact les filaments directement après la sortie de la filière, au plus tard à un moment où la consolidation du filament n'est pas encore terminée, avec de la vapeur d'eau ou la vapeur d'un autre liquide coagulant les filaments. The invention relates to a process for making hydrophilic filaments or fibers by spinning a polymer solution by a dry spinning process; the filaments are brought into contact directly after leaving the die, at the latest when the consolidation of the filament has not yet been completed, with water vapor or the vapor of another liquid coagulating the filaments .

Improvements in the manufacture of artificial silk

Improvements in the manufacture of artificial filaments or threads

Improvements in the manufacture and production of artificial silk and the apparatus used for this manufacture

Improvements in the manufacture of artificial filaments

Viscose fibre prepn. - by spinning, coagulating in a volatile gas, partially regenerating and then completely regenerating

Procédé pour la fabrication de filaments de viscose selon le brevet principal. Après passage à travers le milieu gazeux à action coagulante Après passage à travers le milieu liquide et eventuelletnent après passage à travers le milieu liquide acide à action prérégénérante, on soumet les filaments au moins un traitement d'ouvrairon. Concerne l'industrie de la fabrication des filaments artificiels.

Spinning apparatus for preparing artificial threads by the dry spinning process

Improvements in the treatment of cellulose derivatives

Artificial silk dry-spinning improvements

Improvements in apparatus for the production of artificial silk and the like

Patent FR2375353B1

Device for pre-heating the air in dry spinning

Improvements in the treatment of filaments, yarns or threads

Improvements in the manufacture of artificial filaments or threads

Process for the production of continuously dyed, high-shrinkage filaments and fibres

ABSTRACT OF THE DISCLOSURE The invention relates to a process for the continuous pro-duction of filaments of high-shrinking dyed acrylonitrile copolymer which contains at least 150 milliequivalents of acid groups per kg of polymer, where-in the dry-spun and unstretched filaments are exposed to a special washing-, squeezing- and drying procedure prior to the dyeing and stretching.

Improvements in the manufacture of artificial filaments

Improvements in processes and apparatus for the manufacture of artificial filaments or threads

Improvements in processes and apparatus intended for the manufacture of artificial threads or filaments

Improvements in processes and apparatus intended for the manufacture of artificial threads or filaments

Manufacturing process for artificial silk and artificial threads or filaments

Improvements in the manufacture of artificial silk

Hygroscopic filaments and fibers

HYGROSCOPIC FILAMENTS AND FIBERS Abstract of the Disclosure The Invention relates to a process for the production of hygroscopic filaments or fibers by dry-spinning a polymer solution wherein immediately they issue from the spinning jet or at the latest at a time when their solidification is still not complete, the filaments are brought into contact with water-vapour or with the vapour of another liquid which coagulates filaments. Le A 17 956

A kind of superhigh-flexibility graphene fiber and preparation method thereof prepared by dry spinning

本发明公开了一种干法纺丝制备的超高柔性石墨烯纤维及其制备方法，所述石墨烯纤维使用氧化石墨烯溶液，通过干法纺丝的方式制备氧化石墨烯纤维，然后还原氧化石墨烯纤维即得所述石墨烯纤维。本发明突破组成纤维的材料必须是长链状大分子高聚物的思路约束，首次把纳米二维片层的氧化石墨烯，利用干法纺丝，成功实现了连续制备具有优异柔韧性能的氧化石墨烯纤维，且通过还原法成功制备了具有优异柔韧性能的石墨烯纤维。与湿纺纺丝比制备的工艺过程更为简便，纤维柔韧性能更为突出，更利于大规模的生产和应用。石墨烯纤维的主要应用在柔性电极，超级电容器，智能可穿戴设备上。

"continuous dry spinning process"

Dry Spinning Apparatus including conditioning device

The present invention relates to a dry spinning apparatus and, more specifically, to a dry spinning apparatus including a conditioning unit, which can secure the processibility of a post process and the physical properties of final products by cooling yarns, that has been passed through a spinning container, using a cooling liquid. The present invention provides a dry spinning apparatus including a conditioning unit, which comprises a spinning container having an inner space; a head arranged on the upper end of the spinning container with a spinneret for ejecting an undiluted spinning solution, which is supplied from the outside, downward; and a conditioning unit arranged under the spinning container so that the yarns discharged from the spinneret can pass through, and increasing the contact of the yarns with cooling liquid, wherein the conditioning unit is arranged to be rotatable, and includes a jet roller spraying the cooling liquid from the inside to the outside, and a support bath for detaining a predetermined amount of the cooling liquid sprayed from the jet roller.

METHOD FOR FORMING FIBERS AND DEVICE FOR FORMING FIBERS

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 127 383 A (51) МПК D01D 4/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018127383, 26.12.2016 (71) Заявитель(и): ТЕЙДЗИН ФАРМА ЛИМИТЕД (JP) Приоритет(ы): (30) Конвенционный приоритет: 28.12.2015 JP 2015-256373 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 30.07.2018 R U (43) Дата публикации заявки: 30.01.2020 Бюл. № 4 (72) Автор(ы): ЯГУРА, Ясусиге (JP), КУВАХАРА, Хироюки (JP), ОХМОРИ, Гаку (JP) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/115876 (06.07.2017) R U (54) СПОСОБ ФОРМОВАНИЯ ВОЛОКОН И УСТРОЙСТВО ДЛЯ ФОРМОВАНИЯ ВОЛОКОН (57) Формула изобретения 1. Форсуночное устройство для формования волокон, содержащее форсунку, средство подачи раствора полимера для подачи раствора полимера к форсунке для его выпускания из наконечника форсунки, и средство подачи пара растворителя для подачи газа, содержащего пар того же растворителя, что и растворитель указанного раствора полимера, по меньшей мере к периферии только что выпущенного раствора полимера. 2. Форсуночное устройство для формования волокон по п. 1, которое имеет двухтрубчатую часть конструкции, образованную из внутренней трубки, которая является форсункой, и окружающей ее наружной трубки, причем указанная двухтрубчатая часть конструкции выполнена таким образом, что газ, содержащий пар того же растворителя, что и растворитель указанного раствора полимера, подается из пространства между внутренней трубкой и наружной трубкой. 3. Способ формования волокон, содержащих полимер, включающий стадию выпускания раствора полимера из наконечника форсунки, в котором формирование волокон выполняют одновременно с подачей газа, содержащего пар того же растворителя, что и растворитель указанного раствора полимера, по меньшей мере к периферии только что выпущенного раствора полимера. 4. Способ формования волокон по п. 3, в котором газ, подлежащей подаче, содержит вещество, которое в условиях во время ...

Nozzle head and electrospinning apparatus

【課題】ノズルヘッドの小型化と駆動電圧の低減とを図り得るノズルヘッド及び電界紡糸装置の提供。【解決手段】ノズルヘッド２は、原料液が収納される空間を内部に有する本体部２２と、本体部２２と接続され、少なくとも１つのノズル２０を含む第１のノズル群１２ａと、本体部２２と接続され、少なくとも１つのノズル２０を含む第２のノズル群１２ｂと、を備えており、本体部２２が延びる方向から見て、第２のノズル群１２ｂに属するノズルは、先端側になるに従い第１のノズル群１２ａに属するノズルから離れる方向に延びているノズルヘッド２。【選択図】図１ Provided are a nozzle head and an electrospinning apparatus capable of reducing the size of the nozzle head and reducing the driving voltage. A nozzle head includes a main body having a space in which a raw material liquid is stored, a first nozzle group connected to the main body and including at least one nozzle, and a main body. And a second nozzle group 12b including at least one nozzle 20, and the nozzles belonging to the second nozzle group 12b as viewed from the direction in which the main body portion 22 extends become closer to the tip side. A nozzle head 2 extending in a direction away from the nozzles belonging to the first nozzle group 12a. [Selection] Figure 1

Device for dry spinning of artificial silk