IP Library Granted Patent US 10,024,000
Granted Patent B2
US 10,024,000 · App. 12/170,578 · Granted Jul 17, 2018

Fibrous structures and methods for making same

Inventors: Steven Lee Barnholtz (West Chester, OH); Paul Dennis Trokhan (Hamilton, OH); Michael Donald Suer (Cincinnati, OH)
Assignee: The Procter & Gamble Company
D21H27/30D04H1/407D04H1/425D04H1/56D21H11/12D21H13/14D21H15/06D21H17/25D21H17/28
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Quick Facts
Patent No.
US 10,024,000
App. No.
12/170,578
Granted
Jul 17, 2018
Kind
B2
Abstract

Fibrous structures that exhibit improved consumer recognizable properties, especially a VFS of greater than about 11 g/g, and to methods for making such fibrous structures are provided.

Claims (11)

1. A multi-ply absorbent towel product in roll form comprising a plurality of perforated sheets, wherein the multi-ply absorbent towel product comprises a co-formed fibrous structure comprising a plurality of filaments, wherein the filaments comprise an internal wetting agent and wherein at least one of the filaments exhibits a length of 5.08 cm or greater and a plurality of solid additives randomly dispersed throughout the co-formed fibrous structure wherein at least one of the solid additives comprises a fiber, wherein the multi-ply absorbent towel product exhibits a pore volume distribution such that greater than 60% of the total pore volume present in the multi-ply absorbent towel product exists in pores of radii of greater than 121 μm, and wherein the multi-ply absorbent towel product exhibits a VFS of greater than about 11 g/g, a basis weight of from about 10 g/m 2 to about 120 g/m 2 , and a density of less than 0.60 g/cm 3 .

2. The multi-ply absorbent towel product according to claim 1 wherein the fiber comprises a wood pulp fiber.

3. The multi-ply absorbent towel product according to claim 2 wherein the wood pulp fiber is selected from the group consisting of: Southern Softwood Kraft pulp fibers, Northern Softwood Kraft pulp fibers, Eucalyptus pulp fibers, Acacia pulp fibers.

4. The multi-ply absorbent towel product according to claim 1 wherein at least one of the plurality of filaments comprises a thermoplastic polymer.

5. The multi-ply absorbent towel product according to claim 4 wherein the thermoplastic polymer is selected from the group consisting of: polypropylene, polyethylene, polyester, polylactic acid, polyhydroxyalkanoate, polycaprolactone and mixtures thereof.

6. The multi-ply absorbent towel product according to claim 1 wherein at least one of the plurality of filaments comprises a natural polymer.

7. The multi-ply absorbent towel product according to claim 6 wherein the natural polymer is selected from the group consisting of: starch, starch derivatives, cellulose, cellulose derivatives, hemicellulose, hemicellulose derivatives and mixtures thereof.

8. The multi-ply absorbent towel product according to claim 1 wherein at least one surface of the multi-ply absorbent towel product comprises a layer of the filaments.

9. The multi-ply absorbent towel product according to claim 1 wherein the multi-ply absorbent towel product further exhibits one or more of the following properties: a Dry CD Tensile Modulus of less than about 1500 g/cm and/or a Wet CD TEA of greater than about 35 (g·in)/in 2 and/or a Wet MD TEA of greater than about 40 (g·in)/in 2 .

10. An osmotic material-free multi-ply absorbent towel product in roll form comprising a plurality of perforated sheets, wherein the multi-ply absorbent towel product comprises a co-formed fibrous structure comprising a plurality of filaments, wherein the filaments comprise an internal wetting agent and wherein at least one of the filaments exhibits a length of 5.08 cm or greater and a plurality of solid additives randomly dispersed throughout the co-formed fibrous structure wherein at least one of the solid additives comprises a fiber, wherein the multi-ply absorbent towel product exhibits a pore volume distribution such that greater than 60% of the total pore volume present in the multi-ply absorbent towel product exists in pores of radii of greater than 121 μm, and wherein the multi-ply absorbent towel product exhibits a VFS of greater than about 11 g/g, and wherein the multi-ply absorbent towel product further exhibits a basis weight of from about 10 g/m 2 to about 120 g/m 2 and a density of less than 0.60 g/cm 3 .

11. The multi-ply absorbent towel product according to claim 10 wherein the multi-ply absorbent towel product further exhibits one or more of the following properties: a Dry CD Tensile Modulus of less than about 1500 g/cm and/or a Wet CD TEA of greater than about 35 (g·in)/in 2 and/or a Wet MD TEA of greater than about 40 (g·in)/in 2 .

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 13, 2008
From: BARNHOLTZ, STEVEN LEE; TROKHAN, PAUL DENNIS; SUER, MICHAEL DONALD
To: PROCTER & GAMBLE COMPANY, THE
Reel/Frame 021379/0849 →
Continuity (2)
Provisional Application 60959809 · Jul 17, 2007
Related Publication 20090084513A1 · Apr 2, 2009
Cited By (1)
US 12,258,684