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US 12,122,137 B2Granted
Fibrous structure-containing articles that exhibit consumer relevant properties
AssigneeThe Procter & Gamble Company
InventorsChristopher Michael Young, Michael Gomer Stelljes, Michael Donald Suer, Timothy James Klawitter, Steven Lee Barnholtz, Jeffrey Glen Sheehan, Paul Dennis Trokhan, James Roy Denbow
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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.
Claims20
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/in2 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/in2 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/in2 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/mils3 as measured according to the Flexural Rigidity and Bending Modulus Test Method;
- (4) a TS7 Value of less than 17.0 dB V2 rms as measured according to the Emtec Test Method;
- (5) a TS750 Value of greater than 20.0 dB V2 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.
30 more elements
Dependencies are inferred from the claim text.