Frank S Murray

US Patent:

7416637, Aug 26, 2008

Filed:

Jun 27, 2005

Appl. No.:

11/167348

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US

Assignee:

Georgia-Pacific Consumer Products LP - Atlanta GA

International Classification:

D21F 11/00
D21H 25/00

US Classification:

162111, 162109, 162113, 162116, 162205, 162207

Abstract:

A low-compaction method of making an absorbent cellulosic web includes: forming a nascent web from a papermaking furnish; dewatering the nascent web to a consistency of from about 10 to about 30 percent on a foraminous forming support traveling at a first speed; rush-transferring the web at a consistency of from 10 to about 30 percent to an open texture fabric traveling at a second speed slower than the first speed of the forming support; further dewatering the web on the impression fabric to a consistency of from about 30 to about 60 percent by way of (i) combining the open texture fabric bearing said web with a fluid distribution membrane and an anti-rewet felt as the three pass through a nip into a pressure chamber defined in part by a plurality of nip rolls, the fluid distribution membrane bearing against the side of the open texture fabric away from the web, with the anti-rewet felt bearing against the web, and (ii) applying a pneumatic pressure gradient from the distributor membrane through the web thereby dewatering the web; and drying the web. Preferably the process includes the steps of selecting the papermaking furnish and controlling the process such that the dried web has a void volume fraction of at least 0. 7, a hydraulic diameter in the range of from about 3 to about 20 microns and a Wet Springback Ratio of at least about 0. 65.

US Patent:

7442278, Oct 28, 2008

Filed:

Apr 18, 2005

Appl. No.:

11/108458

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Menasha WI, US

Assignee:

Georgia-Pacific Consumer Products LP - Atlanta GA

International Classification:

B31F 1/16
B31F 1/07

US Classification:

162111, 162117, 162123, 156183, 264282

Abstract:

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.

US Patent:

7651589, Jan 26, 2010

Filed:

Sep 18, 2007

Appl. No.:

11/901599

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Menasha WI, US

Assignee:

Georgia-Pacific Consumer Products LLC - Atlanta GA

International Classification:

D21H 25/04
B31F 1/12

US Classification:

162111, 162117, 162197, 162204

Abstract:

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.

US Patent:

7662255, Feb 16, 2010

Filed:

Sep 18, 2007

Appl. No.:

11/901673

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Memasha WI, US

Assignee:

Georgia-Pacific Consumer Products LLC - Atlanta GA

International Classification:

D21H 25/04
B31F 1/12

US Classification:

162111, 162117, 162197, 162204, 428153, 428156

Abstract:

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.

US Patent:

7670457, Mar 2, 2010

Filed:

Sep 30, 2008

Appl. No.:

12/286435

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Menasha WI, US

Assignee:

Georgia-Pacific Consumer Products LLC - Atlanta GA

International Classification:

B31F 1/12

US Classification:

162111, 162117, 162197, 162204

Abstract:

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.

US Patent:

7927456, Apr 19, 2011

Filed:

Jan 25, 2010

Appl. No.:

12/657645

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Menasha WI, US

Assignee:

Georgia-Pacific Consumer Products LP - Atlanta GA

International Classification:

D21H 25/04
B31F 1/12

US Classification:

162111, 162117, 162197, 162204, 428153, 428156

Abstract:

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.

US Patent:

8142612, Mar 27, 2012

Filed:

Jan 21, 2009

Appl. No.:

12/321448

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US

Assignee:

Georgia-Pacific Consumer Products LP - Atlanta GA

International Classification:

D21H 27/02
D21F 11/00
B31F 1/16

US Classification:

162113, 162111, 162116, 162207

Abstract:

A method of making a cellulosic web having an elevated absorbency. The method includes (a) forming a nascent web having an apparently random distribution of fiber orientation from a papermaking furnish, (b) non-compactively drying the nascent web to a consistency of from about 30 to about 60 percent, (c) thereafter, transferring the web to a translating transfer surface that is moving at a first speed, and (d) fabric-creping the web from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric. The creping step occurs 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 that is slower than the speed of the transfer surface. The fabric pattern, nip parameters, velocity delta and web consistency are selected such that the web is creped from the transfer surface and redistributed on the creping fabric. The method further includes (e) retaining the wet web in the creping fabric, and (f) drying the wet web while it is held in the creping fabric to a consistency of at least about 90 percent.

US Patent:

8226797, Jul 24, 2012

Filed:

Mar 7, 2011

Appl. No.:

13/041706

Inventors:

Frank C. Murray - Marietta GA, US
Greg A. Wendt - Neenah WI, US
Steven L. Edwards - Fremont WI, US
Stephen J. McCullough - Mount Calvary WI, US
Guy H. Super - Menasha WI, US

Assignee:

Georgia-Pacific Consumer Products LP - Atlanta GA

International Classification:

D21H 25/04
B31F 1/12

US Classification:

162111, 162117, 162197, 162204, 156183, 264282

Abstract:

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. The web is fabric-creped from the transfer surface at a consistency of from about 30 to about 60 percent utilizing a creping fabric, under pressure, in a fabric creping nip defined between the transfer surface and the creping fabric. The fabric is traveling a fabric speed that is slower than the speed of the transfer surface. The web is creped from the transfer surface and redistributed on the creping fabric to form a web with a drawable reticulum having a plurality of interconnected regions of different local basis weights. The web is dried and the web is drawn. The step of drawing the web preferentially attenuates the fiber-enriched regions of the web.