Fibrous structure-containing articles that exhibit consumer relevant properties

Patent metadata

Field	Value
Publication number	US-12128665-B2
Application number	US-202318306665-A
Country	US
Kind code	B2
Filing date	Apr 25, 2023
Priority date	Oct 17, 2016
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

Articles, such as sanitary tissue products, comprising fibrous structures, and more particularly articles comprising fibrous structures comprising a plurality of fibrous elements wherein the articles exhibit improved consumer relevant properties, for example improved bulk and absorbent properties, compared to known articles and methods for making same are provided.

First claim

What is claimed is:

1. A sanitary tissue product roll comprising a multi-ply fibrous structure, wherein the multiply
fibrous structure comprises:
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, wherein the portion of the thermoplastic meltblown filaments in the form of the coform fibrous structure are spun from a die and directly laid on top of the first wet laid fibrous structure; and
b. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers associated with the first wet laid fibrous structure such that the multi-ply fibrous structure exhibits a Dry Burst Energy Absorption of greater than 20.0 (g-in/in2) as measured according to the Dry Burst Test Method and a Dry Thick Compression of greater than 700 mils*mils/log(gr force/in2) as measured according to the Dry Compressive Modulus Test Method.

2. The sanitary tissue product roll 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 sanitary tissue product roll according to claim 2 wherein the thermoplastic polymer is a polyolefin selected from the group consisting of: polypropylene, polyethylene, and mixtures thereof.

4. The sanitary tissue product roll according to claim 1 wherein the multi-ply fibrous structure further exhibits a Bending Modulus of less than 10.00 [(mg*cm·g)/mils3] as measured according to the Flexural Rigidity and Bending Modulus Test Method.

5. The sanitary tissue product roll according to claim 1 wherein the multi-ply fibrous structure further exhibits a TS7 of less than 17.0 dB V2 rms as measured according to the Emtec Test Method.

6. The sanitary tissue product roll 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 sanitary tissue product roll 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 sanitary tissue product roll according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is a polylactic acid thermoplastic meltblown filament.

9. The sanitary tissue product roll according to claim 1 wherein at least one of the plurality of thermoplastic meltblown filaments is a polyhydroxyalkanoate thermoplastic meltblown filament.

10. The sanitary tissue product roll according to claim 1 wherein the sanitary tissue product roll is a paper towel roll.

11. A sanitary tissue product roll comprising a multi-ply fibrous structure, wherein the multiply fibrous structure comprises:
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, wherein the portion of the thermoplastic meltblown filaments in the form of the coform fibrous structure are spun from a die and directly laid on top of the first wet laid fibrous structure; and
b. a second ply comprising a second wet laid fibrous structure comprising a plurality of wood pulp fibers associated with the first wet laid fibrous structure such that the multi-ply fibrous structure exhibits a Dry Burst Energy Absorption of greater than 20.0 (g-in/in2) as measured according to the Dry Burst Test Method and a Wet Thick Compression of greater than 1800 mils*mils/log(gr force/in2) as measured according to the Wet Compressive Modulus Test Method.

12. The sanitary tissue product roll according to claim 11 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.

13. The sanitary tissue product roll according to claim 12 wherein the thermoplastic polymer is a polyolefin selected from the group consisting of: polypropylene, polyethylene, and mixtures thereof.

14. The sanitary tissue product roll according to claim 11 wherein the multi-ply fibrous structure further exhibits a Bending Modulus of less than 10.00 [(mg*cm·g)/mils3] as measured according to the Flexural Rigidity and Bending Modulus Test Method.

15. The sanitary tissue product roll according to claim 11 wherein the multi-ply fibrous structure further exhibits a TS7 of less than 17.0 dB V2 rms as measured according to the Emtec Test Method.

16. The sanitary tissue product roll according to claim 11 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.

17. The sanitary tissue product roll according to claim 11 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.

18. The sanitary tissue product roll according to claim 11 wherein at least one of the plurality of thermoplastic meltblown filaments is a polylactic acid thermoplastic meltblown filament.

19. The sanitary tissue product roll according to claim 11

Assignees

• Procter & Gamble

Inventors

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

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