IP Library Granted Patent US 11,285,690
Granted Patent B2
US 11,285,690 · App. 15/785,942 · Granted Mar 29, 2022

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); James Roy Denbow (Mason, OH); Steven Lee Barnholtz (West Chester, OH); Jeffrey Glen Sheehan (Symmes Township, OH); Paul Dennis Trokhan (Hamilton, 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 11,285,690
App. No.
15/785,942
Granted
Mar 29, 2022
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 (16)

1. A multi-ply fibrous structure comprising:

a. a first ply comprising: a plurality of wood pulp fibers and a plurality of thermoplastic meltblown filaments selected from the group consisting of polyester thermoplastic meltblown filaments, nylon thermoplastic meltblown filaments, polyolefin thermoplastic meltblown filaments, biodegradable thermoplastic meltblown filaments, compostable thermoplastic meltblown filaments, and mixtures thereof, wherein the plurality of thermoplastic meltblown filaments exhibit a length of greater than or equal to 5.08 cm, wherein a first portion of the plurality of wood pulp fibers are in the form of a first wet laid fibrous structure and a second portion of the plurality of wood pulp fibers are commingled together with a portion of the thermoplastic meltblown filaments in the form of a coform fibrous structure; and

b. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers, wherein the portion of the thermoplastic meltblown filaments in the form of the coform fibrous structure of the first ply are spun from a die and directly laid on top of the second wet laid fibrous structure such that the multi-ply fibrous structure exhibits an Absorptive Rate and Capacity of greater than 0.35 g/sec as measured according the Absorptive Rate and Capacity (CRT) Test Method and a Dry Thick Compression of greater than 700 mils*mils/log (gr force/in 2 ) as measured according to the Dry Compressive Modulus Test Method.

2. The multi-ply fibrous structure according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is selected from the group consisting of polyolefin thermoplastic meltblown filaments, polylactic acid thermoplastic meltblown filaments, polyhydroxyalkanoate thermoplastic meltblown filaments, polyesteramide thermoplastic meltblown filaments, polycaprolactone thermoplastic meltblown filaments, and mixtures thereof.

3. The multi-ply fibrous structure according to claim 2 wherein the thermoplastic polymer is a polyolefin selected from the group consisting of: polypropylene, polyethylene, and mixtures thereof.

4. The multi-ply fibrous structure according to claim 1 wherein the multi-ply fibrous structure further exhibits a Bending Modulus of less than 10.00 [(mg*cm·g)/mils 3 ] as measured according to the Flexural Rigidity and Bending Modulus Test Method.

5. The multi-ply fibrous structure according to claim 1 wherein the multi-ply fibrous structure further exhibits a TS7 of less than 17.0 dB V 2 rms as measured according to the Emtec Test Method.

6. The multi-ply fibrous structure according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is selected from the group consisting of biodegradable thermoplastic meltblown filaments, compostable thermoplastic meltblown filaments and mixtures thereof.

7. The multi-ply fibrous structure according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is selected from the group consisting of polylactic acid thermoplastic meltblown filaments, polyhydroxyalkanoate thermoplastic meltblown filaments, polyesteramide thermoplastic meltblown filaments, polycaprolactone thermoplastic meltblown filaments, and mixtures thereof.

8. The multi-ply fibrous structure according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is a polylactic acid thermoplastic meltblown filament.

9. The multi-ply fibrous structure according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is a polyhydroxyalkanoate thermoplastic meltblown filament.

10. A multi-ply fibrous structure comprising:

a. a first ply comprising: a plurality of wood pulp fibers and a plurality of thermoplastic meltblown filaments selected from the group consisting of polyester thermoplastic meltblown filaments, nylon thermoplastic meltblown filaments, polyolefin thermoplastic meltblown filaments, biodegradable thermoplastic meltblown filaments, compostable thermoplastic meltblown filaments, and mixtures thereof, wherein the plurality of thermoplastic meltblown filaments exhibit a length of greater than or equal to 5.08 cm, wherein a first portion of the plurality of wood pulp fibers are in the form of a first wet laid fibrous structure and a second portion of the plurality of wood pulp fibers are commingled together with a portion of the thermoplastic meltblown filaments in the form of a coform fibrous structure; and

b. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers, wherein the portion of the thermoplastic meltblown filaments in the form of the coform fibrous structure of the first ply are spun from a die and directly laid on top of the second wet laid fibrous structure such that the multi-ply fibrous structure exhibits an Absorptive Rate and Capacity of greater than 0.35 g/sec as measured according the Absorptive Rate and Capacity (CRT) Test Method and a Wet Thick Compression of greater than 1800 mils*mils/log (gr force/in 2 ) as measured according to the Wet Compressive Modulus Test Method.

11. The multi-ply fibrous structure according to claim 10 wherein the multi-ply fibrous structure further exhibits a Bending Modulus of less than 10.00 (mg*cm·/gram)/mils 3 as measured according to the Flexural Rigidity and Bending Modulus Test Method.

12. The multi-ply fibrous structure according to claim 10 wherein the multi-ply fibrous structure further exhibits a TS7 of less than 17.0 dB V 2 rms as measured according to the Emtec Test Method.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 6, 2017
From: YOUNG, CHRISTOPHER MICHAEL; STELLJES, MICHAEL GOMER; SUER, MICHAEL DONALD; KLAWITTER, TIMOTHY JAMES; DENBOW, JAMES ROY; BARNHOLTZ, STEVEN LEE; SHEEHAN, JEFFREY GLEN; TROKHAN, PAUL DENNIS
To: THE PROCTER & GAMBLE COMPANY
Reel/Frame 044036/0534 →
Continuity (2)
Provisional Application 62409202 · Oct 17, 2016
Related Publication 20180105995A1 · Apr 19, 2018
Cited By (1)
US 12,377,631