IP Library › Granted Patent US 7,938,932
Granted Patent B2
US 7,938,932 · App. 12/871,036 · Granted May 10, 2011

Tissue sheets having good strength and bulk

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Quick Facts
Patent No.
US 7,938,932
App. No.
12/871,036
Granted
May 10, 2011
Kind
B2
Abstract

A method of making soft, strong, high bulk tissue is disclosed. The method includes pre-conditioning a wet web by straining the wet web in the cross-machine direction prior to transferring the wet web to a throughdrying fabric. The pre-conditioned web provides improved sheet softness and conforms more readily to the surface contour of the throughdrying fabric, thereby creating greater caliper (bulk) in the resulting dried sheet. The bulk is maintained during a subsequent creping step by maintaining the dried sheet in registration with the throughdrying fabric when the dried sheet is applied to the surface of the creping cylinder.

Claims (10)

1. A tissue sheet having a geometric mean slope of from about 1.0 to about 3.5 kilograms of force per 3 inches of sample width, a geometric mean tensile strength of from about 350 to about 900 grams of force per 3 inches of sample width and a bulk of from about 15 to about 22 cubic centimeters per gram.

2. The tissue sheet of claim 1 having a geometric mean slope of from about 1.5 to about 3.5 kilograms of force per 3 inches of sample width.

3. The tissue sheet of claim 1 having a geometric mean slope of from about 2.0 to about 3.5 kilograms of force per 3 inches of sample width.

4. The tissue sheet of claim 1 having a geometric mean slope of from about 2.0 to about 3.0 kilograms of force per 3 inches of sample width.

5. The tissue sheet of claim 1 having a geometric mean slope of from about 2.2 to about 3.0 kilograms of force per 3 inches of sample width.

6. The tissue sheet of claim 1 having a geometric mean tensile strength of from about 350 to about 800 kilograms of force per 3 inches of sample width.

7. The tissue sheet of claim 1 having a geometric mean tensile strength of from about 375 to about 700 grams of force per 3 inches of sample width.

8. The tissue sheet of claim 1 having a geometric mean tensile strength of from about 400 to about 700 grams of force per 3 inches of sample width.

9. The tissue sheet of claim 1 having a bulk of from about 15 to about 20 cubic centimeters per gram.

10. The tissue sheet of claim 1 having a bulk of from about 18 to about 20 cubic centimeters per gram.

Assignments (1)
NAME CHANGE Recorded Feb 3, 2015
From: KIMBERLY-CLARK WORLDWIDE, INC.
To: KIMBERLY-CLARK WORLDWIDE, INC.
Reel/Frame 034880/0704 →