Georgia-pacific Consumer Products LP

Gpcp IP Holdings LLC

Georgia-pacific Chemicals LLC

Fort James Corporation

Clay E. Ringold

Nancy S. Clungeon

Jeffery J. Boettcher

Dexter C. Johnson

Hung Liang Chou

Kang Chang Yeh

Frank David Harper

Stephen J McCullough

John Henry Dwiggins

Steven L Edwards

Joseph Henry Miller

Ronald Richard Reeb

Guy H Super

Daniel H Sze

Xiaolin Fan

Steven R Olson

Mark S Hunter

Stephen J Mccullough

Ronald R Reeb

Clay E Ringold

Daniel James Geddes

Gary L Worry

Christopher J Peters

Taiye Philips Oriaran

Farminder Singh Anand

Thomas E Lyse

Jeffery J Boettcher

Martin A Hynnek

Dexter C Johnson

Nancy S Clungeon

Mark L Robinson

Frank D Harper

John H Dwiggins

Kang C Yeh

Dean Joseph Baumgartner

Daniel J Geddes

An absorbent sheet made by a process that includes the steps of forming a nascent web from an aqueous papermaking furnish, and creping the nascent web on a multilayer belt that includes (i) a first layer made from a polymeric material having a plurality of openings, and (ii) a second layer attached to the first layer, with the nascent web being deposited onto a surface of the first layer. The absorbent sheet includes a plurality of hollow domed regions projecting from a side of the absorbent sheet, with each of the hollow domed regions being shaped such that a distance from at least one first point on an edge of a hollow domed region to a second point on an edge at an opposite side of the hollow domed region is at least about 0.5 mm.

Absorbent sheet made by creping a nascent web on a multilayer belt having openings

A cellulosic sheet includes a single ply providing a first surface of the cellulosic sheet on one side and a second surface of the cellulosic sheet on a second side. The single ply has a caliper of at least about 130 mils/8 sheets, a basis weight of less than about 16 lbs/ream, and a dry machine direction/cross machine direction (MD/CD) tensile ratio of less than about 1.0.

Absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets

A system for fabricating a sheet product. A first rotatable roller includes a rotatable drum portion having an outer surface that rotates about a rotational axis in a first direction and conveys a sheet product. The rotatable drum portion also has a plurality of ports communicative between an inner surface and an outer surface. The ports extend along and around the drum portion. The first rotatable roller emits a pressurized fluid. A second rotatable roller has an outer surface arranged proximate to the outer surface of the rotatable drum portion of the first rotatable roller, and a heat source portion to heat the second rotatable roller to dry the sheet product. The second rotatable roller rotates in a second direction that is opposite to the first direction. A gap is defined between the second rotatable roller and the first rotatable roller through which the sheet product passes.

System and methods involving fabricating sheet products

A method of creping a cellulosic sheet and a creped web made by a creping process. The method includes preparing a nascent web from an aqueous papermaking furnish, depositing and creping the nascent web on a multilayer creping belt that includes (i) a first layer made from a polymeric material having a plurality of openings, and (ii) a second layer attached to a surface of the first layer, with the nascent web being deposited on the first layer, and applying a vacuum to the creping belt such that the nascent web is drawn into the plurality of openings, but not drawn into the second layer.

Method of creping a cellulosic sheet using a multilayer creping belt having openings to make paper products, and paper products made using a multilayer creping belt having openings

A process of determining features of a fabric. A representation of a portion of a surface of the fabric is formed showing locations and sizes of knuckles and pockets in the fabric surface. The representation is a print or a photograph of the fabric surface. An image is generated based on the representation. At least a portion of the image is displayed on a computer screen. The sizes and locations of the knuckles or pockets is determined. A unit cell is drawn for the portion of the fabric surface in the image. The unit cell is defined by guidelines that (i) pass through the centers of the knuckles and (ii) form shapes that surround areas of the image that correspond to where the pockets are formed between the knuckles. A fabric planar volumetric index is calculated based on properties of the unit cell formed by the guidelines.

Process of determining features of a papermaking fabric based on sizes and locations of knuckles and pockets in the fabric

An absorbent cellulosic sheet made by a method that includes forming an aqueous cellulosic web on a structuring fabric in a papermaking machine, non-compactively dewatering the cellulosic web on the structuring fabric, and drying the cellulosic web to form the absorbent cellulosic sheet. A portion of the structuring fabric on which the cellulosic web is formed has an adjusted planar volumetric index of at least about 27.

An absorbent cellulosic sheet made by a method that includes forming an aqueous cellulosic web on a portion of a structuring fabric in a papermaking machine, and drying the cellulosic web to form the absorbent cellulosic sheet. The portion of the structuring fabric on which the cellulosic web is formed has a planar volumetric index of at least about 26. The absorbent cellulosic sheet has a caliper of at least about 160 mils/8 sheets and a dry machine direction (MD) to cross machine direction (CD) tensile ratio of less than about 1.0.

Soft, absorbent sheets having high absorbency and high caliper, and methods of making soft, absorbent sheets

An absorbent sheet of cellulosic fibers that has an upper side and a lower side. A plurality of hollow domed regions projects from the upper side of the absorbent sheet. Each of the hollow domed regions is shaped such that a distance from at least one first point on an edge of a hollow domed region to a second point on an edge at an opposite side of the hollow domed region is at least about 0.5 mm. Connecting regions form a network interconnecting the hollow domed regions of the absorbent sheet. A singly-ply of the absorbent sheet has a caliper of at least about 140 mils/8 sheets.

Absorbent sheet of cellulosic fibers having an upper side and a lower side with connecting regions forming a network interconnecting hollow domed regions

A system for fabricating a sheet product includes a first rotatable roller assembly operative to emit a pressurized fluid through an outer surface of the first rotatable roller assembly, and a second rotatable roller assembly having an outer surface arranged proximate to the outer surface of the first rotatable roller assembly, the second rotatable roller assembly and the first rotatable roller assembly are operative to rotate in opposing directions, the second rotatable roller assembly and the first rotatable roller assembly defining a gap therebetween through which a sheet material passes in contact with the outer surface of the first rotatable roller assembly and the outer surface of the second rotatable roller assembly, the emitted pressurized fluid operative to impinge a surface of the sheet material and separate contact between the outer surface of the first rotatable roller assembly and the sheet material.

A papermaking machine for making a paper product using a through air drying process. A headbox supplies an aqueous furnish. A structuring fabric has a surface with a contact area and (i) receives the furnish from the headbox on the surface to thereby form a cellulosic web from the furnish and (ii) non-compactively dewaters the cellulosic web. At least one through air drier dries the cellulosic web on the structuring fabric. A portion of the structuring fabric on which the cellulosic web is formed has an adjusted planar volumetric index of at least about 27.

A method of making a paper product includes forming an aqueous cellulosic web on a structuring fabric in a papermaking machine, non-compactively dewatering the cellulosic web on the structuring fabric, and drying the cellulosic web to form the paper product. The portion of the structuring fabric on which the cellulosic web is formed has a planar volumetric index of at least about 26.

Paper products, such as hand towels, have high absorbency, high caliper, and good perceived softness. The paper products are made using a structuring fabric that has a high adjusted planar volumetric index, which indicates a relation between the contact area ratio of a papermaking web contacting surface of the structuring fabric and the volume of pockets of the fabric, with the contact area ratio and the volume of pockets being calculated on the basis of a non-rectangular, parallelogram unit cell.

Paper products, such as hand towels, have high absorbency, high caliper, and good perceived softness. Two-ply products have a caliper of at least about 260 mils/8 sheets and an SAT capacity of at least about 650 g/m. The paper products are made using a structuring fabric that has a high planar volumetric index, which indicates a relation between the contact area ratio of a papermaking web contacting surface of the structuring fabric and the volume of pockets of the fabric.

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 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.

Growing community of inventors

Neenah, WI, United States of America

Hung Liang Chou