IP Library Granted Patent US 11,667,103
Granted Patent B2
US 11,667,103 · App. 15/785,689 · Granted Jun 6, 2023

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
B32B5/145B31F1/16B32B5/08B32B5/26B32B27/10B32B27/12B32B27/32B32B29/02D01D5/18D04H1/26D04H1/407D04H1/425D04H1/4374D04H1/593D04H1/60D21H13/10D21H15/10D21H21/20D21H27/002D21H27/004D21H27/005D21H27/007D21H27/02D21H27/30B31F1/126B32B2250/20B32B2262/0253B32B2262/062B32B2307/54B32B2307/546B32B2555/00D01D5/0985D04H1/4218D04H1/435D04H1/4309D04H1/4358Y10T442/693
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Quick Facts
Patent No.
US 11,667,103
App. No.
15/785,689
Granted
Jun 6, 2023
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 (39)

1. An osmotic material-free article 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 the portion of the plurality of filaments in the form of a coformed fibrous structure such that the osmotic material-free article 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 Win′ 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 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 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 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 g/cm*% at 15 g/cm as measured according to the Dry Tensile Strength Test Method.

2. The osmotic material-free article according to claim 1 wherein the 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 Win as measured according to the Wet Tensile Strength Test Method.

3. The osmotic material-free article according to claim 1 wherein the 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 osmotic material-free article according to claim 1 wherein the 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 osmotic material-free article according to claim 1 wherein the 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 osmotic material-free article according to claim 1 wherein the 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 osmotic material-free article according to claim 1 wherein the 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 osmotic material-free article according to claim 1 wherein the osmotic material-free article exhibits a CRT Capacity of greater than 0.59 Win′ as measured according to the Absorptive Rate and Capacity (CRT) Test Method and a Wet MD Tensile of greater than 420 Win as measured according to the Wet Tensile Strength Test Method.

9. The osmotic material-free article according to claim 1 wherein the osmotic material-free article exhibits a CRT Capacity of greater than 0.59 Win′ 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 osmotic material-free article according to claim 1 wherein the osmotic material-free article comprises a plurality of thermoplastic filaments.

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

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

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

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

15. The osmotic material-free article according to claim 14 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.

16. The osmotic material-free article according to claim 1 wherein the osmotic material-free article further comprises a nonwood pulp fiber.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2017
From: YOUNG, CHRISTOPHER MICHAEL; STELLJES, MICHAEL GOMER; SUER, MICHAEL DONALD; KLAWITTER, TIMOTHY JAMES; BARNHOLTZ, STEVEN LEE; SHEEHAN, JEFFREY GLEN; TROKHAN, PAUL DENNIS; DENBOW, JAMES ROY
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 044035/0861 →
Continuity (2)
Provisional Application 62409202 · Oct 17, 2016
Related Publication 20180105992A1 · Apr 19, 2018