PROCESS FOR CLEANING A TRANSPORT BELT FOR MANUFACTURING A PAPER WEB

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet. 1. A method for continuous cleaning of a papermaking fabric comprising:subjecting a fabric to be cleaned to an initial cleaning stage, wherein the initial cleaning stage includes the application of either steam or the application of water at a temperature of greater than 80° C. from an initial cleaning shower;subjecting the fabric to be cleaned to a second cleaning stage, wherein the second cleaning stage includes a second cleaning shower that spans the width of the fabric to be cleaned;wherein the paper machine production is not interrupted during cleaning.2. The method of claim 1 , wherein the water in the initial shower is superheated water.3. The method of claim 2 , wherein the superheated water is applied to a surface of the fabric after the application of steam.4. The method of claim 1 , wherein the initial cleaning shower is a traversing cleaning shower.5. The method of claim 1 , further comprising claim 1 , applying an air stream from an air knife to the fabric surface after the initial cleaning stage.6. The method of claim 1 , wherein the second cleaning shower is an encapsulated cleaning shower.7. The method of claim 1 , wherein superheated water is applied during the second cleaning stage.8. The method of claim 1 , wherein both steam and water are applied during the initial cleaning stage.9. The method of claim 1 , wherein steam is applied during the second cleaning stage.10. The method of claim 1 , wherein both steam ...

PROCESS FOR CLEANING A TRANSPORT BELT FOR MANUFACTURING A PAPER WEB

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet. 115-. (canceled)16. A papermaking apparatus comprising:a first cleaning assembly;a second cleaning assembly;a fabric to be cleaned travelling in a machine direction through the papermaking machine;wherein the first cleaning assembly and the second cleaning assembly are configured to apply a cleaning medium comprising either steam, water, or both to the fabric to be cleaned;wherein the second cleaning assembly is located downstream in the machine direction from the first cleaning assembly; andwherein the first cleaning assembly and the second cleaning assembly allow application of the cleaning media to the entire width of the fabric to be cleaned.17. The apparatus of claim 16 , wherein at least one of the first and second cleaning assemblies comprises an encapsulated shower.18. The apparatus of claim 16 , wherein at least one of the first and second cleaning assemblies comprises a traversing shower.19. The apparatus of claim 17 , wherein the at least one encapsulated shower comprises a shower that allows for application and withdrawal of cleaning media to the fabric to be cleaned without significant deposition on the papermaking machine.20. The apparatus of claim 18 , wherein the at least one traversing shower is configured to reticulate back and forth across the width of the papermaking fabric.21. The apparatus of claim 16 , wherein at least one of the first and second cleaning assemblies comprises one or more nozzles.22. The ...

Sheet Edge Trimming and Removal From a Structured Paper Fabric

The disclosure relates to a method for trimming unwanted edges from a moving paper web. The disclosure also relates to the trimming of unwanted edges while the web is traveling on a structured papermaking fabric. The method uses a water nozzle having a diameter of 0.02″ or less. The method also includes the removal of the unwanted edge trimmings to a trim chute through the use of moving air, for example, an air knife. The disclosure also relates to an edge trimming apparatus.

Sheet edge trimming and removal from a structured paper fabric

The disclosure relates to a method for trimming unwanted edges from a moving paper web. The disclosure also relates to the trimming of unwanted edges while the web is traveling on a structured papermaking fabric. The method uses a water nozzle having a diameter of 0.02″ or less. The method also includes the removal of the unwanted edge trimmings to a trim chute through the use of moving air, for example, an air knife. The disclosure also relates to an edge trimming apparatus.

AIR KNIFE CONFIGURED TO IMPROVE ROLLING OF PAPER PRODUCT

Described herein are methods and systems for minimizing folding defects when rolling a paper product. The method comprises rotating a roll in a manner that draws a paper product toward the roll. The location of a pick-up point between the roll and the paper product is altered by influencing the air pressure experienced by the paper product. This may be accomplished by flowing air in one of several manners described in the specification. 1. A method of receiving a paper product on a roll , comprising:rotating the roll in a manner that draws the paper product toward the roll; andaltering the location of a pick-up point between the roll and the paper product by influencing the air pressure experienced by the paper product.2. The method of claim 1 , wherein altering the location of the pick-up point comprises moving the pick-up point to a location where claim 1 , but for altering the air pressure experienced by the paper product claim 1 , the paper product would not have contacted the roll.3. The method of claim 1 , wherein the pick-up point is the location where a point on the paper product first contacts the roll.4. The method of claim 1 , wherein gas is applied in a direction away from the pick-up point.5. The method of claim 1 , wherein gas is applied such that it prevents the paper product from folding as the paper product engages the roll.6. A method for rolling a paper product without creating roll defects claim 1 , comprising:suspending the paper product between a roll and a papermaking component;applying a pressure difference to a portion of the suspended paper product by flowing air in a direction that causes the portion to move toward the roll; androlling the paper product.7. The method of claim 6 , wherein applying a pressure difference increases the tension in the portion of the suspended paper product.8. The method of claim 6 , wherein the papermaking component comprises a slitter.9. The method of claim 6 , wherein the papermaking component comprises a ...

AIR KNIFE CONFIGURED TO IMPROVE ROLLING OF PAPER PRODUCT

Described herein are methods and systems for minimizing folding defects when rolling a paper product. The method comprises rotating a roll in a manner that draws a paper product toward the roll. The location of a pick-up point between the roll and the paper product is altered by influencing the air pressure experienced by the paper product. This may be accomplished by flowing air in one of several manners described in the specification. 120-. (canceled)21. An air-knife system for applying air away from a paper product during a rolling process , comprising:a source of compressed air;a hose for transferring the compressed air;a nozzle configured to direct air away from the paper product;a frame supporting at least the nozzle;a roll configured to receive the paper product;a first plane defined by a portion of the paper product not yet in contact with the roll; anda second plane, parallel to the first plane, which intersects the rotational axis of the roll,wherein the nozzle is configured to direct air away from the portion of the paper product such that the air travels through the second plane.22. The air-knife system of claim 21 , wherein the roll is configured to rotate in a manner that draws the paper product toward the roll and rolls the paper product onto the roll.23. The air-knife system of claim 21 , wherein the nozzle is configured to direct air away from both the paper product and the roll.24. The air-knife system of claim 21 , wherein the nozzle is configured to direct air at a vector angle of about 90 degrees to the first plane.25. The air-knife system of claim 21 , wherein the nozzle is configured to direct air at a vector angle less than 90 degrees and greater than 45 degrees to the first plane.26. The air-knife system of claim 21 , wherein the nozzle is configured to direct air such that it biases the paper product closer to the second plane.27. The air-knife system of claim 26 , wherein the nozzle is configured to direct air such that it prevents the ...

Moist crepe process

The present invention relates to the creation of toweling with surprisingly high absorbency using a furnish comprising a major proportion of recycle furnish when the furnish is creped from a Yankee dryer coated with a creping adhesive comprising polyvinyl alcohol and an epichlorohydrin crosslinked polyamide creping adhesive at a consistency corresponding to a sheet temperature (immediately prior to the creping blade) of between 225°F and 255°F (107°C and 124°C) , preferably ranging from about 230°F (110°C) up to about 250°F (121°C).

Fabric-Crepe Process With Prolonged Production Cycle and Improved Drying

A method of manufacturing absorbent sheet is directed to a wet-press/fabric-crepe process wherein add-on of adhesive to the Yankee surface is at relatively low levels, yet sheet transfer is maintained and production increased. Materials are selected and process parameters are controlled such that a paper machine can be operated for at least 4 hours before the Yankee coating needs to be stripped. Preferably, average increase in Yankee hood temperature is less than 1° F./minute during a production interval.

Process for cleaning a transport belt for manufacturing a paper web

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet.

Fabric-creped sheet for dispensers

Fabric-creped absorbent sheet has an MD bending length of about 3.5 cm or more as well as an absorbency of about 3g/g or more. The sheet is preferably produced without through drying or dry creping and is a low-dust product especially suitable for automatic towel dispensers.

Energy-efficient yankee dryer hood system

A paper machine configured as a swing machine capable of producing both light and heavy grades providing a Yankee hood split into a wet end half and a dry end half, at least one hood half being a flex-hood half wherein the supply for that half is capable of being run with either combustion heat or recycled heat and is capable of either recirculating the exhaust from the hood or discharging it to the atmosphere. The heater for the flex-hood half comprises both a primary combustion heat source and an indirect heat source capable of extracting by-product heat from another operation. The exhaust system for the flex hood half is capable of being run in either a straight through mode or in a recirculating mode.

Fabric-creped sheet for dispensers

Fabric-creped absorbent sheet has an MD bending length of about 3.5 cm or more as well as an absorbency of about 3g/g or more. The sheet is preferably produced without through drying or dry creping and is a low-dust product especially suitable for automatic towel dispensers.

A process for cleaning a transport belt for manufacturing a paper web

A papermaking apparatus has a first cleaning assembly and a second cleaning assembly. A fabric to be cleaned travels in a machine direction through the papermaking machine. The first cleaning assembly is configured to apply a cleaning medium comprising steam and the second cleaning assembly is configured to apply a cleaning medium comprising superheated water at a temperature of greater than 80°C. The second cleaning assembly is located downstream in the machine direction from the first cleaning assembly. The first cleaning assembly and the second cleaning assembly allow application of the cleaning media to the entire width of the fabric to be cleaned.

Fabric-crepe process with prolonged production cycle and improved drying

A method of manufacturing absorbent sheet is directed to a wet-press/fabric-crepe process wherein add-on of adhesive to the Yankee surface is at relatively low levels, yet sheet transfer is maintained and production increased. Materials are selected and process parameters are controlled such that a paper machine can be operated for at least 4 hours before the Yankee coating needs to be stripped. Preferably, average increase in Yankee hood temperature is less than 1°F/minute (0.55°C/minute) during a production interval.

Creping process on a felt with prolonged production cycle and improved drying

Un método de fabricar una hoja celulósica absorbente (44) crespada sobre un fieltro, que comprende (a) desgotar compactamente una suspensión de pasta papelera para formar una hoja continua celulósica y aplicar simultáneamente la hoja continua a un cilindro de apoyo rotativo calentado (60); (b) crespar sobre un fieltro la hoja continua procedente de la superficie (64) del cilindro de apoyo calentado, a una consistencia de aproximadamente 30% a aproximadamente 60%, utilizando un fieltro estructurado de crespado (18), produciéndose la etapa de crespado bajo presión en una línea de tangencia de crespado (76) definida entre la superficie (64) del cilindro de apoyo y el fieltro de crespado (18), en el que el fieltro se desplaza a una segunda velocidad más lenta que la velocidad de la superficie (64) del citado cilindro de apoyo, seleccionándose la estructura del fieltro, parámetros de la línea de tangencia, velocidad delta y consistencia de la hoja continua de modo que la hoja continua se crespa desde la superficie (64) del cilindro de apoyo y se transfiere al fieltro de crespado (18); (c) proporcionar una composición de revestimiento de adhesivo resinoso a una superficie (86) de un cilindro secador calentado (80) de un secador Yankee (20) de modo que se forma un revestimiento de adhesivo resinoso, teniendo también el secador Yankee (20) una campana (88) del secador con un límite operatuvo característico de la temperatura; (d) transferir la hoja continua desde el fieltro de crespado (18) a la superficie (86) del cilindro secador calentado (80) del secador Yankee (20) de modo que la hoja continua se adhiere al cilindro secador (80) por el revestimiento de adhesivo resinoso; (e) secar la hoja continua sobre la superficie del cilindro secador (80); (f) separar de la superficie (86) del cilindro secador la hoja continua seca; caracterizado por (g) separar periódicamente de la superficie (86) del cilindro secador por lo menos una porción del revestimiento de adhesivo resinoso ...

Fabric-crepe process with prolonged production cycle and improved drying

A method of manufacturing absorbent sheet is directed to a wet-press/fabric-crepe process wherein add-on of adhesive to the Yankee surface is at relatively low levels, yet sheet transfer is maintained and production increased. Materials are selected and process parameters are controlled such that a paper machine can be operated for at least 4 hours before the Yankee coating needs to be stripped. Preferably, average increase in Yankee hood temperature is less than 1°F/minute (0.55°C/minute) during a production interval.

Fabric-creped sheet for dispensers and method of making the same

Device for cleaning a transport belt for manufacturing a paper web

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet.

Anti-microbial paper products including silver ions

Aspects of the present disclosure include disposable articles made of cellulosic fiber and comprising silver ions. The disposable articles include napkins, guest towels, placemats, and tray mats, and these articles can be used in schools, hospitals, clinics, doctor's offices, dental offices, long term and assisted living facilities, and restaurant and foodservice facilities.

Air knife configured to improve rolling of paper product

Described herein are methods and systems for minimizing folding defects when rolling a paper product. The method comprises rotating a roll in a manner that draws a paper product toward the roll. The location of a pick-up point between the roll and the paper product is altered by influencing the air pressure experienced by the paper product. This may be accomplished by flowing air in one of several manners described in the specification.

Creping process on a felt with prolonged production cycle and improved drying

A process for cleaning a transport belt for manufacturing a paper web

A papermaking apparatus has a first cleaning assembly and a second cleaning assembly. A fabric to be cleaned travels in a machine direction through the papermaking machine. The first cleaning assembly is configured to apply a cleaning medium comprising steam and the second cleaning assembly is configured to apply a cleaning medium comprising superheated water at a temperature of greater than 80°C. The second cleaning assembly is located downstream in the machine direction from the first cleaning assembly. The first cleaning assembly and the second cleaning assembly allow application of the cleaning media to the entire width of the fabric to be cleaned.

Air knife configured to improve rolling of paper product.

Se describe aquí procedimientos y sistemas para minimizar los defectos de plegado al enrollar un producto de papel. El método comprende la rotación de un rodillo de manera que atrae un producto de papel hacia el rodillo. La ubicación de un punto de recogida entre el rodillo y el producto de papel se ve alterada por influir la presión del aire experimentada por el producto de papel. Esto se puede lograr haciendo fluir el aire en una de las varias maneras descritas en la especificación.

Method of moist creping absorbent paper base sheet

The present invention relates to the creation of toweling with surprisingly high absorbency using a furnish comprising a major proportion of recycle furnish when the furnish is creped from a Yankee dryer coated with a creping adhesive comprising polyvinyl alcohol and an epichlorohydrin crosslinked polyamide creping adhesive at a consistency corresponding to a sheet temperature (immediately prior to the creping blade) of between 225°F and 255°F (107°C and 124°C) , preferably ranging from about 230°F (110°C) up to about 250°F (121°C).

Fabric-creped sheet for dispensers

Air knife configured to improve rolling of paper product

Air knife configured to improve rolling of paper product

Described herein are methods and systems for minimizing folding defects when rolling a paper product. The method comprises rotating a roll in a manner that draws a paper product toward the roll. The location of a pick-up point between the roll and the paper product is altered by influencing the air pressure experienced by the paper product. This may be accomplished by flowing air in one of several manners described in the specification.

Crepe tissue sheet for dispensers

Una hoja celulósica absorbente que comprende una banda celulósica (74) que incorpora fibras de fabricación de papel que tienen un alargamiento en la dirección de máquina (MD) de al menos el 5%, un valor de tasa de absorción de agua (WAR) de menos de 35 segundos, y una longitud de doblado en MD de al menos 3,5 cm, caracterizada además por que la banda es pelada de un cilindro de secado (110) durante la preparación de la misma y no tiene, por tanto, sustancialmente barras de crepado. An absorbent cellulosic sheet comprising a cellulosic web (74) incorporating papermaking fibers having an elongation in the machine direction (MD) of at least 5%, a water absorption rate (WAR) value of less than 35 seconds, and a bending length in MD of at least 3.5 cm, further characterized in that the band is stripped from a drying cylinder (110) during the preparation thereof and therefore does not have substantially crepe bars

A process for cleaning a transport belt for manufacturing a paper web

A process for cleaning a transport belt for manufacturing a paper web

The disclosure relates to a continuous cleaning method for cleaning a moving fabric in a paper machine. The method uses one or more cleaning stages. In one embodiment, one cleaning stage applies steam to heat and soften contaminants on the fabric followed by the application of water, preferably superheated water, to remove the contaminants. Another cleaning stage may apply hot water, steam and/or superheated water via an encapsulated shower and evacuation chamber making it possible to clean the width of the fabric without substantial rewet.

Fabric-creped sheet for dispensers

Fabric-creped absorbent sheet has an MD bending length of about 3.5 cm or more as well as an absorbency of about 3 g/g or more. The sheet is preferably produced without through drying or dry creping and is a low-dust product especially suitable for automatic towel dispensers.

Anti-microbial and anti-viral paper products including silver ions

Aspects of the present disclosure include antimicrobial and/or antiviral disposable articles made of cellulosic fiber and comprising silver ions. The disposable articles include napkins, guest towels, placemats, and tray mats, and these articles can be used in schools, hospitals, clinics, doctor's offices, dental offices, long term and assisted living facilities, and restaurant and foodservice facilities.

Sheet edge trimming and removal from a structured paper fabric

The disclosure relates to a method for trimming unwanted edges from a moving paper web. The disclosure also relates to the trimming of unwanted edges while the web is traveling on a structured papermaking fabric. The method uses a water nozzle having a diameter of 0.02" or less. The method also includes the removal of the unwanted edge trimmings to a trim chute through the use of moving air, for example, an air knife. The disclosure also relates to an edge trimming apparatus.

Sheet edge trimming and removal from a structured paper fabric

Sheet edge trimming and removal from a structured paper fabric

The disclosure relates to a method for trimming unwanted edges from a moving paper web. The disclosure also relates to the trimming of unwanted edges while the web is traveling on a structured papermaking fabric. The method uses a water nozzle having a diameter of 0.02" or less. The method also includes the removal of the unwanted edge trimmings to a trim chute through the use of moving air, for example, an air knife. The disclosure also relates to an edge trimming apparatus.

Recorte y eliminación de bordes de hojas de una tela de papel estructurada

Un procedimiento para recortar un borde no deseado de una banda de papel en movimiento (10), que comprende: proporcionar la banda de papel en movimiento (10) en contacto con una tela de fabricación de papel estructurada, en la sección de secado de una máquina de fabricación de papel; y cortar el borde no deseado de la banda (10) cuando está sobre la tela de fabricación de papel con una o más boquillas de agua (220); caracterizado por que las una o más boquillas de agua (220) tienen un diámetro inferior a aproximadamente 0,51 mm (0,02"), y el agua se suministra desde las una o más boquillas (220) a una presión de 48 bares a 83 bares (700 psig a 1200 psig).