IP Library Granted Patent US 8,545,676
Granted Patent B2
US 8,545,676 · App. 13/397,756 · Granted Oct 1, 2013

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

Inventors: Guy H. Super (Menasha, WI); Steven L. Edwards (Fremont, WI); Stephen J. McCullough (Mount Calvary, WI); Frank C. Murray (Marietta, GA)
Assignee: Georgia-Pacific Consumer Products LP
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Quick Facts
Patent No.
US 8,545,676
App. No.
13/397,756
Granted
Oct 1, 2013
Kind
B2
Abstract

An absorbent cellulosic sheet includes a papermaking-fiber reticulum. The paper-making-fiber reticulum includes a plurality of fiber-enriched regions that are oriented in a cross-machine direction (CD) of the sheet, and the fiber-enriched regions have (i) a local basis weight and (ii) papermaking fibers that are oriented in the CD of the sheet. The paper-making-fiber reticulum further includes a plurality of linking regions that link corresponding ones of the fiber-enriched regions together in linking directions. The linking regions have (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.

Claims (20)

1. A drawn fabric-creped absorbent cellulosic sheet, the drawn sheet comprising:

a papermaking-fiber reticulum including:

(a) a plurality of fiber-enriched regions that are oriented in a cross-machine direction (CD) of the sheet prior to the sheet being drawn, the fiber-enriched regions having (i) a local basis weight and (ii) papermaking fibers that are oriented in the CD of the sheet, wherein the fiber-enriched regions of the drawn sheet are attenuated or dispersed in the machine direction (MD); and

(b) 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.

2. The drawn fabric creped absorbent cellulosic sheet according to claim 1 , wherein the fiber-enriched regions have a plurality of expanded micro-folds.

3. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits an absorbency of at least about 5 g/g.

4. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits an absorbency of from about 6 g/g to about 9 g/g.

5. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a caliper at least about 50 mils/8 sheets.

6. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a caliper of from 50 mils/8 sheets to 115 mils/8 sheets.

7. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a machine direction of the sheet to cross-machine direction of the sheet (MD/CD) tensile ratio of less than about one.

8. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a CD stretch of greater than about five percent.

9. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a CD stretch of from about five percent to about fifteen percent.

10. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits an absorbency of from about 6 g/g to 9 g/g, a caliper of from about 50 mils/8 sheets to 115 mils sheets, a machine direction to nosy-machine direction (MD/CD) tensile ratio of less than about one, and CD stretch of from about five percent to about fifteen percent.

11. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits an increase in void volume upon being drawn.

12. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a twenty percent increase in void volume upon being drawn.

13. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a thirty percent increase in void volume upon being drawn.

14. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a forty percent increase in void volume upon being drawn.

15. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits absorbency suitable for use in tissue and towel products.

16. The drawn fabric-creped absorbent cellulosic sheet according to claim 1 , wherein the sheet exhibits a decrease in sidedness upon being drawn.

17. The absorbent cellulosic sheet according to claim 1 , wherein the sheet has a void volume of from about 4.8 g/g to about 9.8 g/g.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2018
From: GEORGIA-PACIFIC CONSUMER PRODUCTS LP
To: GPCP IP HOLDINGS LLC
Reel/Frame 045188/0257 →
Continuity (5)
Continuation 12804210 · Jul 16, 2010
Division 11108375 · Apr 18, 2005
Continuation In Part 10679682 · Oct 6, 2003
Provisional Application 60416666 · Oct 7, 2002
Related Publication 20120180966A1 · Jul 19, 2012