Multi-ply Fibrous Structures

Patent metadata

Field	Value
Publication number	US-2018209101-A1
Application number	US-201815875036-A
Country	US
Kind code	A1
Filing date	Jan 19, 2018
Priority date	Jan 20, 2017
Publication date	Jul 26, 2018
Grant date	—

Abstract

Multi-ply fibrous structures and more particularly multi-ply fibrous structures containing three or more different fibrous structure plies, and methods for making same are provided.

First claim

What is claimed is:

1 . A multi-ply fibrous structure comprising:
a. a first ply comprising a layered fibrous structure comprising:
i. a first web material comprising a plurality of first fibers; and
ii. a plurality of first hydroxyl polymer filaments associated with at least one surface of the first web material; and
b. a second ply comprising a second web material comprising a plurality of second fibers wherein the second web material is different from the first web material; wherein the layered fibrous structure and the second web material are associated with each other such that the first web material is adjacent to the second web material.

2 . The fibrous structure according to claim 1 wherein the second web material is positioned between at least two of the first plies.

3 . The fibrous structure according to claim 1 wherein the second web material exhibits a greater bulk density than the first web material.

4 . The fibrous structure according to claim 1 wherein the second web material is more textured than the first web material.

5 . The fibrous structure according to claim 1 wherein the second web material exhibits a different basis weight than the first web material.

6 . The fibrous structure according to claim 1 wherein the fibrous structure further comprises a third web material comprising a plurality of third fibers.

7 . The fibrous structure according to claim 1 wherein the hydroxyl polymer filaments exhibit an average diameter of less than 10 μm as measured according to the Average Diameter Test Method.

8 . The fibrous structure according to claim 1 wherein at least one of the hydroxyl polymer filaments comprises starch and/or starch derivative.

9 . The fibrous structure according to claim 1 wherein at least one of the hydroxyl polymer filaments comprises polyvinyl alcohol.

10 . The fibrous structure according to claim 1 wherein at least one of the hydroxyl polymer filaments comprises a crosslinked polymer.

11 . The fibrous structure according to claim 1 wherein the first fibers comprise pulp fibers.

12 . The fibrous structure according to claim 1 wherein the first web material comprises a wet laid fibrous structure ply.

13 . The fibrous structure according to claim 1 wherein the second fibers comprise pulp fibers.

14 . The fibrous structure according to claim 1 wherein the second web material comprises a wet laid fibrous structure ply.

15 . The fibrous structure according to claim 1 wherein the fibrous structure comprises an exterior surface that is void of surface chemistry agents.

16 . The fibrous structure according to claim 1 wherein the first hydroxyl filaments exhibit greater surface smoothness relative to the surface of the first fibers.

17 . The fibrous structure according to claim 1 wherein the layered fibrous structure is associated with the second web material through one or more bond sites.

18 . The fibrous structure according to claim 17 wherein at least one of the bond sites comprises an adhesive bond.

19 . The fibrous structure according to claim 1 wherein the first web material exhibits a basis weight that is different from the basis weight of the hydroxyl polymer filaments.

20 . A method for making a fibrous structure according to claim 1 wherein the method comprises the steps of:
a. providing a first web material;
b. spinning a plurality of hydroxyl polymer filaments onto a surface of the first web material to form a layered fibrous structure; and
c. associating a second web material to the layered fibrous structure.

Assignees

• Procter & Gamble

Inventors

• Cabell David William
• Mckee Matthew Gary
• Kraus Christopher Scott
• Trokhan Paul Dennis
• Popham Benjamin J

Classifications

• D21F11/16

  Making paper strips for spinning or twisting · CPC title

• D21H13/30

  Non-cellulose polysaccharides · CPC title

• D21H27/38 Primary

  at least one of the sheets having a fibrous composition differing from that of other sheets · CPC title

• D21H13/16

  Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters · CPC title

• D21H27/30

  Multi-ply (for surface covering D21H27/18; making on paper-making machines D21F9/00, D21F11/00) · CPC title