Sanitary tissue products with free fibers and methods for making same

Patent metadata

Field	Value
Publication number	US-9622625-B2
Application number	US-201414574422-A
Country	US
Kind code	B2
Filing date	Dec 18, 2014
Priority date	Dec 19, 2013
Publication date	Apr 18, 2017
Grant date	Apr 18, 2017

Abstract

Sanitary tissue products that exhibit novel free fiber numbers compared to known sanitary tissue products as measured according to the Free Fiber Test Method described herein, and methods for making same, are provided.

First claim

What is claimed is:

1. A sanitary tissue product comprising a 3D patterned fibrous structure ply comprising a plurality of pulp fibers, wherein the sanitary tissue product exhibits a Free Fiber number of greater than 26 as measured according to the Free Fiber Test Method.

2. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a lint of less than 15 as measured according to the Lint Test Method.

3. The sanitary tissue product according to claim 1 wherein the pulp fibers comprise wood pulp fibers.

4. The sanitary tissue product according to claim 1 wherein the pulp fibers comprise non-wood pulp fibers.

5. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply comprises an embossed 3D patterned fibrous structure ply.

6. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply comprises a through-air-dried fibrous structure ply.

7. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply is a creped through-air-dried fibrous structure ply.

8. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply is an uncreped through-air-dried fibrous structure ply.

9. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply is a fabric creped fibrous structure ply.

10. The sanitary tissue product according to claim 1 wherein the 3D patterned fibrous structure ply is a belt creped fibrous structure ply.

11. The sanitary tissue product according to claim 1 wherein the sanitary tissue product comprises a conventional wet-pressed fibrous structure ply.

12. The sanitary tissue product according to claim 1 wherein the sanitary tissue product comprises a consumer user side that exhibits the Free Fiber number.

13. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a Free Fiber number of 27 or greater as measured according to the Free Fiber Test Method.

14. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a Free Fiber number of 29 or greater as measured according to the Free Fiber Test Method.

15. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a Free Fiber number of 30 or greater as measured according to the Free Fiber Test Method.

16. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a Free Fiber number of 35 or greater as measured according to the Free Fiber Test Method.

17. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a lint of less than 10 as measured according to the Lint Test Method.

18. The sanitary tissue product according to claim 1 wherein the sanitary tissue product exhibits a lint of less than 9 as measured according to the Lint Test Method.

19. A method for making a single- or multi-ply sanitary tissue product, the method comprising the steps of:
a. contacting a patterned molding member with a fibrous structure comprising a plurality of pulp fibers such that a 3D patterned fibrous structure ply that exhibits a Free Fiber number of greater than 26 as measured according to the Free Fiber Test Method is formed; and
b. making a single- or multi-ply sanitary tissue product according to the present invention comprising the 3D patterned fibrous structure ply.

Assignees

• Procter & Gamble

Inventors

• Maladen Ryan Dominic
• Manifold John Allen
• Ostendorf Ward William
• Sheehan Jeffrey Glen

Classifications

• D21H27/40

  at least one of the sheets being non-planar, e.g. crêped (crêping or corrugating paper B31F) · CPC title

• A47K10/16 Primary

  Paper towels; Toilet paper; Holders therefor · CPC title

• D21H27/004

  characterised by specific parameters (D21H27/008 takes precedence) · CPC title

• D21H27/002

  Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title

• Y10T428/24628

  Nonplanar uniform thickness material · CPC title