IP Library › Granted Patent US 12,122,137
Granted Patent B2
US 12,122,137 · App. 18/190,606 · Granted Oct 22, 2024

Fibrous structure-containing articles that exhibit consumer relevant properties

Inventors: Christopher Michael Young (Loveland, OH); Michael Gomer Stelljes (Mason, OH); Michael Donald Suer (Cincinnati, OH); Timothy James Klawitter (North Bend, OH); Steven Lee Barnholtz (West Chester, OH); Jeffrey Glen Sheehan (Symmes Township, OH); Paul Dennis Trokhan (Hamilton, OH); James Roy Denbow (Mason, OH)
Assignee: The Procter & Gamble Company
B32B5/145B31F1/16B32B5/08B32B5/26B32B27/10B32B27/12B32B27/32B32B29/02D01D5/18D04H1/26D04H1/407D04H1/425D04H1/4374D04H1/593D04H1/60D21H13/10D21H15/10D21H21/20D21H27/002D21H27/004D21H27/005D21H27/007D21H27/02D21H27/30B31F1/126B32B2250/20B32B2262/0253B32B2262/062B32B2307/54B32B2307/546B32B2555/00D01D5/0985D04H1/4218D04H1/4309D04H1/435D04H1/4358Y10T442/693
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Quick Facts
Patent No.
US 12,122,137
App. No.
18/190,606
Granted
Oct 22, 2024
Kind
B2
Abstract

Articles, such as sanitary tissue products, including fibrous structures, and more particularly articles including fibrous structures having a plurality of fibrous elements wherein the article exhibits differential cellulose content throughout the thickness of the article and methods for making same are provided.

Claims (45)

1. A multi-ply osmotic material-free article comprising:

a. a first ply comprising: a plurality of wood pulp fibers at least a first portion of which are present in the form of a wet laid fibrous structure and a plurality of filaments wherein at least a portion of the plurality of filaments are spun from a die and directly laid on top of the wet laid fibrous structure and wherein a second portion of the plurality of wood pulp fibers are commingled together with another portion of the plurality of filaments in the form of a coform fibrous structure such that the multi-ply osmotic material-free article exhibits; and

b. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers associated with the first ply such that the multi-ply fibrous structure exhibits

a. one or more absorbent characteristics selected from the group consisting of:

i. HFS of greater than 17 g/g as measured according to the Horizontal Full Sheet (HFS) Test Method;

ii. CRT Rate of greater than 0.35 g/second as measured according to the Absorptive Rate and Capacity (CRT) Test Method;

iii. CRT Capacity of greater than 14 g/g as measured according to the Absorptive Rate and Capacity (CRT) Test Method;

iv. CRT Capacity of greater than 0.59 g/in 2 as measured according to the Absorptive Rate and Capacity (CRT) Test Method; and

v. a Pore Volume Distribution such that greater than 15% of the total pore volume present in the multi-ply osmotic material-free article exists in pores of radii of greater than 225 μm as measured according to the Pore Volume Distribution Test Method; and

vi. a Pore Volume Distribution such that greater than 6% of the total pore volume present in the multi-ply osmotic material-free article exists in pores of radii of from 301 to 600 μm as measured according to the Pore Volume Distribution Test Method; and

b. one or more of the following article properties:

i. one or more wet strength properties selected from the group consisting of:

(1). Geometric Mean Wet TEA of greater than 30 g*in/in 2 as measured according to the Wet Tensile Strength Test Method;

(2). Wet Burst: Dry Burst Ratio of greater than 0.5 as measured according to the Wet and Dry Burst Test Methods;

(3). Wet Burst Energy Absorption (BEA) of greater than 10 g-in/in 2 as measured according to the Wet Burst Test Method;

(4). Wet MD Tensile of greater than 420 g/in as measured according to the Wet Tensile Strength Test Method; and

(5). Wet Burst of greater than 450 g as measured according to the Wet Burst Test Method;

ii. a VFS of greater than 11 g/g as measured according to the Vertical Full Sheet (VFS) Test Method;

iii. a Pore Volume Distribution such that greater than 5% of the total pore volume present in the multi-ply osmotic material-free article exists in pores of radii from 2.5 to 30 μm as measured according to the Pore Volume Distribution Test Method;

iv. one or more softness properties selected from the group consisting of:

(1) an Overhang Length of less than 10.6 cm as measured according to the Flexural Rigidity and Bending Modulus Test Method;

(2) a Plate Stiffness, Basis Weight Normalized of less than 0.20 N*mg/M as measured according to the Plate Stiffness and Basis Weight Test Methods;

(3) a Bending Modulus of less than 9.0 milligram·cm·grams/mils 3 as measured according to the Flexural Rigidity and Bending Modulus Test Method;

(4) a TS7 Value of less than 17.0 dB V 2 rms as measured according to the Emtec Test Method;

(5) a TS750 Value of greater than 20.0 dB V 2 rms as measured according to the Emtec Test Method; and

(6) a Geometric Mean Dry Modulus of less than 2250 g/cm*% at 15 g/cm as measured according to the Dry Tensile Strength Test Method.

2. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits an HFS of greater than 17 g/g as measured according to the Horizontal Full Sheet (HFS) Test Method and a Wet MD Tensile of greater than 420 g/in as measured according to the Wet Tensile Strength Test Method.

3. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits an HFS of greater than 17 g/g as measured according to the Horizontal Full Sheet (HFS) Test Method and a Wet Burst of greater than 450 g as measured according to the Wet Burst Test Method.

4. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Rate of greater than 0.35 g/second as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet MD Tensile of greater than 420 g/in as measured according to the Wet Tensile Strength Test Method.

5. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Rate of greater than 0.35 g/second as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet Burst of greater than 450 g as measured according to the Wet Burst Test Method.

6. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Capacity of greater than 14 g/g as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet MD Tensile of greater than 420 g/in as measured according to the Wet Tensile Strength Test Method.

7. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Capacity of greater than 14 g/g as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet Burst of greater than 450 g as measured according to the Wet Burst Test Method.

8. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Area of greater than 0.59 g/in2 as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet MD Tensile of greater than 420 g/in as measured according to the Wet Tensile Strength Test Method.

9. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article exhibits a CRT Area of greater than 0.59 g/in2 as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet Burst of greater than 450 g as measured according to the Wet Burst Test Method.

10. The multi-ply osmotic material-free article according to claim 1 wherein the wet-laid fibrous structure comprises a through-air dried wet-laid fibrous structure.

11. The multi-ply osmotic material-free article according to claim 1 wherein the wet-laid fibrous structure comprises a surface having a surface pattern.

12. The multi-ply osmotic material-free article according to claim 11 wherein the surface pattern is a non-random, repeating pattern.

13. The multi-ply osmotic material-free article according to claim 12 wherein the surface pattern comprises a plurality of discrete regions dispersed throughout a continuous network.

14. The multi-ply osmotic material-free article according to claim 13 wherein at least a portion of the plurality of discrete regions exhibits a value of a common intensive property that is different from the value of the common intensive property exhibited by the continuous network.

15. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article further comprises a plurality of non-wood pulp fibers.

16. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article further comprises a plurality of cellulosic fibers selected from the group consisting of: cotton linter fibers, rayon fibers, lyocell fibers, trichome fibers, seed hair fibers, rice straw fibers, wheat straw fibers, bamboo fibers, bagasse fibers and mixtures thereof.

17. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article further comprises a plurality of synthetic staple fibers.

18. The multi-ply osmotic material-free article according to claim 17 wherein the synthetic staple fibers are selected from the group consisting of: polypropylene fibers, polyethylene fibers, polyester fibers, polypropylene copolymer fibers, polyethylene copolymer fibers, polyester copolymer fibers, rayon fibers, lyocell fibers, glass fibers, polyvinyl alcohol fibers and mixtures thereof.

19. The multi-ply osmotic material-free article according to claim 1 wherein the multi-ply osmotic material-free article is in roll form.

20. The multi-ply osmotic material-free article according to claim 19 wherein the multi-ply osmotic material-free article in roll form exhibits a Roll Firmness of less than 11.5 mm as measured according to the Roll Firmness Test Method.

Continuity (3)
Continuation 15785689 · Oct 17, 2017
Provisional Application 62409202 · Oct 17, 2016
Related Publication 20230226800A1 · Jul 20, 2023
Cited By (5)
US 12,529,191 US 12,565,737 US 12,606,961 US 12,715,682 US 12,735,246