Patent application number | Description | Published |
20090038768 | Process for producing absorbent sheet - A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric such that the web has a plurality of fiber-enriched regions arranged in a pattern corresponding to the patterned creping surface of the fabric, optionally drying the wet web while it is held in the creping fabric. Preferably, the formed web is characterized in that its void volume increases upon drawing. | 02-12-2009 |
20100126682 | Absorbent sheet - A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric such that the web has a plurality of fiber-enriched regions arranged in a pattern corresponding to the patterned creping surface of the fabric, optionally drying the wet web while it is held in the creping fabric. Preferably, the formed web is characterized in that its void volume increases upon drawing. | 05-27-2010 |
20100282423 | Fabric crepe/draw process for producing absorbent sheet - A method of making a fabric-creped absorbent cellulosic sheet comprising: a) compactively dewatering a papermaking furnish to form a nascent web having an apparently random distribution of papermaking fiber; b) applying the dewatered web having the apparently random fiber distribution to a translating transfer surface moving at a first speed; c) fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric, the creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric to form a web with a drawable reticulum. | 11-11-2010 |
20110155337 | Fabric Crepe And In Fabric Drying Process For Producing Absorbent Sheet - A method of making a cellulosic web includes: forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber; b) transferring the web having a generally random distribution of papermaking fiber to a translating transfer surface moving at a first speed; drying the web to a consistency of from about 30 to about 60 percent including compactively dewatering the web prior to or concurrently with transfer to the transfer surface; fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric with a patterned creping surface, the fabric creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric wherein the fabric is traveling at a second speed slower than the speed of said transfer surface, the fabric pattern, nip parameters, velocity delta and web consistency being selected such that the web is creped from the transfer surface and redistributed on the creping fabric such that the web has a plurality of fiber-enriched regions arranged in a pattern corresponding to the patterned creping surface of the fabric, optionally drying the wet web while it is held in the creping fabric. Preferably, the formed web is characterized in that its void volume increases upon drawing. | 06-30-2011 |
20120145341 | Method of Making a Fabric-Creped Absorbent Cellulosic Sheet - A method of making a fabric-creped absorbent cellulosic sheet includes applying a jet of papermaking furnish to a forming wire, the jet having a jet velocity and the forming wire moving at a forming wire velocity. The papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a transfer surface that is moving at a transfer surface speed. The nascent web is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric that is traveling at a fabric-creping speed, the fabric-creping speed being slower than the transfer surface speed, and the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, such that the nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web. The creped web is dried. The jet/wire velocity delta and the fabric-creping step are controlled such that the dry machine direction to cross-machine direction (MD/CD) tensile ratio of the dried web is about at most 1.5. | 06-14-2012 |
20120152474 | Fabric-Creped Absorbent Cellulosic Sheet Having A Patterned Distribution Of Fibers - A fabric-creped absorbent cellulosic sheet having a patterned distribution of fibers includes a plurality of fiber-enriched pileated regions having a fiber orientation bias in a direction transverse to the machine direction (MD), and a plurality of linking regions having a fiber orientation bias offset from the fiber orientation bias of the plurality of fiber-enriched regions. The plurality of fiber-enriched pileated regions are interconnected by the plurality of linking regions. | 06-21-2012 |
20120160434 | High Solids Fabric Crepe Process For Producing Absorbent Sheet With In-Fabric Drying - A method of making a cellulosic web having an elevated absorbency includes forming a nascent web having a random distribution of fiber orientation from a papermaking furnish, non-compactively drying the nascent web to a consistency of from about 30 to about 60 percent, thereafter, transferring the nascent web to a translating transfer surface that is moving at a transfer surface speed, and fabric-creping the nascent web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric, the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, such that the nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped wet web. The creped wet web is dried while the web is held in the creping fabric. | 06-28-2012 |
20120180965 | Method of Making a Fabric-Creped Absorbent Cellulosic Sheet - A method of making a fabric-creped absorbent cellulosic sheet includes compactively dewatering a papermaking furnish to form a nascent web having a random distribution of papermaking fiber, applying the nascent web to a translating transfer surface that is moving at a transfer surface speed, fabric-creping the nascent web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a patterned creping fabric that is traveling at a fabric-creping speed that is slower than the transfer surface speed, the fabric-creping step occurring under pressure in a fabric creping nip defined between the transfer surface and the creping fabric, such that the nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. | 07-19-2012 |
20120180966 | Fabric-Creped Absorbent Cellulosic Sheet Having A Variable Local Basis Weight - A fabric-creped absorbent cellulosic sheet having a variable local basis weight includes a papermaking-fiber reticulum provided with (a) a plurality of fiber-enriched regions of a high local basis weight, interconnected by way of (b) a plurality of lower local basis weight linking regions, wherein the sheet has been drawn such that the fiber-enriched regions are attenuated or dispersed in the machine direction (MD). | 07-19-2012 |
20120211186 | Method Of Making A Cellulosic Absorbent Sheet - A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the void volume of the dried web. | 08-23-2012 |
20120211187 | Method Of Making A Cellulosic Absorbent Sheet - A method of making a cellulosic absorbent sheet. A cellulosic web is prepared from an aqueous papermaking furnish. The web is fabric-creped. The fabric-creping step forms a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights including at least: (i) a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of (ii) a plurality of lower local basis weight linking regions. The drawable reticulum includes a cohesive fiber matrix capable of increasing in void volume upon drawing. The creped web is dried, while substantially preserving the drawable reticulum, to form a dried web, and the dried web is drawn. The drawing step increases the bulk of the dried web. | 08-23-2012 |
20120216972 | Method Of Making A Fabric-Creped Absorbent Cellulosic Sheet - A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web. The nascent web is applied to a translating transfer surface and is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping fabric travels at a fabric speed that is slower than the speed of the transfer surface. The nascent web is creped from the transfer surface and redistributed on the creping fabric to form a creped web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The creped web is dried to form a dried web, and the dried web is drawn. The drawing step includes drawing the dried web between a first draw roll and a second draw roll. | 08-30-2012 |
20120247698 | Absorbent Fabric-Creped Cellulosic Web For Tissue And Towel Products - An absorbent fabric-creped cellulosic web includes a plurality of fiber-enriched regions of a relatively high local basis weight, interconnected by way of a plurality of lower local basis weight linking regions. The fiber-enriched regions comprise a plurality of microfolds with fold lines extending transverse to the machine direction (MD). | 10-04-2012 |
20130186581 | Fabric-Creped Absorbent Cellulosic Sheet Having A Variable Local Basis Weight - An absorbent cellulosic sheet includes (i) a plurality of fiber-enriched pileated regions having fibers that are oriented in a direction transverse to a machine direction (MD) of the sheet, and (ii) a plurality of linking regions that link the fiber-enriched regions together. The linking regions have fibers that have an orientation that is offset from the orientation of the fibers in the plurality of fiber-enriched pileated regions. | 07-25-2013 |
20130292074 | Absorbent Cellulosic Sheet Having a Variable Local Basis Weight - An absorbent cellulosic sheet includes a papermaking-fiber reticulum. The papermaking-fiber reticulum includes a plurality of fiber-enriched regions that are oriented in a cross-machine direction (CD) of the sheet. The fiber-enriched regions have (i) a local basis weight and (ii) papermaking fibers that are oriented in the CD of the sheet. The papermaking-fiber reticulum also includes a plurality of linking regions that link corresponding ones of the fiber-enriched regions together in linking directions, the linking regions having (i) basis weights that are lower than those of the corresponding ones of the fiber-enriched regions and (ii) papermaking fibers that are oriented in the linking directions. | 11-07-2013 |
20140238627 | METHOD OF MAKING A FABRIC-CREPED ABSORBENT CELLULOSIC SHEET - A method of making a fabric-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a nascent web having an apparently random distribution of papermaking fiber. The dewatered web is applied to a translating transfer surface that is moving at a transfer surface speed. The web is fabric creped from the transfer surface utilizing a patterned creping fabric. The fabric creping step occurs under pressure in a fabric creping nip defined between the transfer surface and the creping fabric. The creping fabric travels at a fabric speed that is slower than the transfer surface speed. The creping fabric contacts the transfer surface and applies pressure to the web against the transfer surface such that the fibers of the web are redistributed on the creping fabric to form a web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. | 08-28-2014 |