Fibrous structure-containing articles that exhibit consumer relevant properties

Patent metadata

Field	Value
Publication number	US-12122137-B2
Application number	US-202318190606-A
Country	US
Kind code	B2
Filing date	Mar 27, 2023
Priority date	Oct 17, 2016
Publication date	Oct 22, 2024
Grant date	Oct 22, 2024

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.

First claim

What is claimed is:

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 a

Assignees

• Procter & Gamble

Inventors

• Young Christopher Michael
• Stelljes Michael Gomer
• Suer Michael Donald
• Klawitter Timothy James
• Barnholtz Steven Lee
• Sheehan Jeffrey Glen
• Trokhan Paul Dennis
• Denbow James Roy

Classifications

• D21H13/10

  Organic non-cellulose fibres · CPC title

• B32B2555/00

  Personal care · CPC title

• B32B2307/546

  Flexural strength; Flexion stiffness · CPC title

• B32B2307/54

  Yield strength; Tensile strength · CPC title

• B32B2262/062

  Cellulose fibres, e.g. cotton · CPC title