Georgia-pacific Consumer Products LP

Georgia-pacific Corporation

Gpcp IP Holdings LLC

Stephen J McCullough

Guy H Super

Steven L Edwards

Greg Wendt

Frank C Murray

Hung Liang Chou

Kang Chang Yeh

Ronald Richard Reeb

John Henry Dwiggins

Frank David Harper

Joseph Henry Miller

Daniel H Sze

Paul James Ruthven

Dean J Baumgartner

Colin A Jones

Richard W Eggen

David P Duggan

Jeffrey E Krueger

David W Lomax

Robert J Marinack

Gary L Worry

Jeffrey Charles McDowell

Michael John Vander Wielen

Mark S Hunter

Thomas E Lyse

Greg A Wendt

David W Lomasx

A method of making a belt-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a dewatered web. The dewatered web is applied to a translating transfer surface. The web is belt-creped from the transfer surface utilizing a polymeric creping belt having perforations. The web is creped from the transfer surface and redistributed on the creping belt to form a web including a plurality of fiber-enriched hollow domed regions protruding from an upper surface of the web, the hollow domed regions having sidewalls being formed along at least a leading edge of the web. Connecting regions form a network interconnecting the hollow domed regions. Transition areas include fibers that transition from the connecting regions into the hollow domed regions, by extending upwardly from the connecting regions into the sidewalls of the domed regions. The web is dried to produce the sheet.

Method of making a belt-creped, absorbent cellulosic sheet with a perforated belt

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 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.

Method of making a fabric-creped absorbent cellulosic sheet

An absorbent cellulosic sheet having a variable local basis weight. The sheet includes a papermaking-fiber reticulum having a plurality of fiber-enriched pileated regions of a relatively high local basis weight each extending a distance in a cross-machine direction (CD) of the sheet, and a plurality of elongated densified regions that interconnect the plurality of fiber-enriched pileated regions. The elongated densified regions (i) have a relatively low local basis weight, and each extending a distance in a machine direction (MD) of the sheet, and (ii) are arranged in a repeating pattern having leading and trailing edges, such that the elongated densified regions are longitudinally staggered with respect to each other.

Multi-ply absorbent sheet of cellulosic fibers

A method of making a belt-creped absorbent cellulosic sheet. A papermaking furnish is compactively dewatered to form a dewatered web having an apparently random distribution of papermaking fiber orientation. The dewatered web is applied to a translating transfer surface moving at a transfer surface speed. The web is belt-creped from the transfer surface utilizing a generally planar polymeric creping belt provided with a plurality of perforations through the belt, the belt-creping step occurring under pressure in a belt creping nip defined between the transfer surface and the creping belt. The belt travels at a belt speed that is slower than the transfer surface speed, and the web is creped from the transfer surface and redistributed on the creping belt to form a web. The web includes hollow domed regions, connecting regions, and transition areas. The web is dried to produce the belt-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.

A method of making a belt-creped absorbent cellulosic sheet that has an upper surface and a lower surface. A papermaking furnish is compactively dewatered to form a dewatered web having an apparently random distribution of papermaking fiber orientation. The dewatered web is applied to a translating transfer surface. The web is belt creped from the transfer surface at a consistency of from about 30% to about 60% utilizing a generally planar polymeric creping belt having a plurality of perforations. The belt-creping step occurs under pressure in a belt creping nip defined between the transfer surface and the creping belt. The belt is traveling at a belt speed that is slower than the speed of the transfer surface, and the web is creped from the transfer surface and redistributed on the creping belt to form a web.

Methods of making a belt-creped absorbent cellulosic sheet prepared with a perforated polymeric belt

A multi-ply absorbent sheet of cellulosic fiber includes continuous outer surfaces, and an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network comprising a plurality of pileated fiber enriched regions of a relatively high local basis weight interconnected by way of a plurality of lower local basis weight linking regions whose fiber orientation is biased along the direction between pileated fiber enriched regions, interconnected thereby, and a plurality of fiber-deprived cellules between the fiber enriched regions and the linking regions, also being characterized by a local basis weight lower than that of the fiber enriched regions.

A method of making a belt-creped absorbent cellulosic sheet. The method includes compactively dewatering a papermaking furnish to form a dewatered web having an apparently random distribution of papermaking fiber orientation. The dewatered web is applied to a translating transfer. The web from the transfer surface is belt-creped at a consistency of from about 30% to about 60%, utilizing a generally planar polymeric creping belt having a plurality of perforations. The belt-creping step occurs under pressure in a belt creping nip defined between the transfer surface and the creping belt. The belt travels at a belt speed that is slower than the speed of the transfer surface, and the web is creped from the transfer surface and redistributed on the creping belt to form a web having a plurality of interconnected regions of different local basis weights.

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.

Absorbent cellulosic sheet having a variable local basis weight

A method of making a fabric-creped absorbent cellulosic sheet includes forming a nascent web from a papermaking furnish, the nascent web having a generally random distribution of papermaking fiber, transferring the nascent web having the generally random distribution of papermaking fiber to a translating transfer surface that is moving at a transfer surface 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 of the web 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, the web being creped from the transfer surface and redistributed on the creping fabric.

A method of making a belt-creped absorbent cellulosic sheet. A paper making furnish is compactively dewatered to form a dewatered web having an apparently random distribution of papermaking fiber orientation. The dewatered web is applied to a translating transfer surface that is moving at a transfer surface speed. The web is belt-creped from the transfer surface at a consistency of from about 30% to about 60% utilizing a generally planar polymeric creping belt having a plurality of perforations, under pressure, in a belt creping nip defined between the transfer surface and the creping belt. The belt travels at a belt speed that is slower than the speed of the transfer surface. The web is creped from the transfer surface and redistributed on the creping belt to form a web having a plurality of interconnected regions of different local basis weights. The web is then dried.

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.

Fabric-creped absorbent cellulosic sheet having a variable local basis weight

A method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics. The method includes compactively dewatering a papermaking furnish to form a nascent web, applying the nascent web to a translating transfer surface, 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 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 fabric speed that is slower than the speed of the transfer surface, the web being creped from the transfer surface and transferred to the creping fabric, adhering the web to a drying cylinder with a resinous adhesive coating composition, drying the web on the drying cylinder to form a dried web, and peeling the dried web from the drying cylinder.

Method of making a fabric-creped absorbent cellulosic sheet with improved dispensing characteristics

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.

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.

Growing community of inventors

Mount Calvary, WI, United States of America

Stephen J McCullough