Fibrous structures comprising regions having different solid additive levels

Patent metadata

Field	Value
Publication number	US-11358182-B2
Application number	US-201916542402-A
Country	US
Kind code	B2
Filing date	Aug 16, 2019
Priority date	Dec 15, 2015
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

Fibrous structures containing solid additives, and more particularly, fibrous structures containing two or more regions that comprise different average weight % levels of solid additives and methods for making same are provided.

First claim

What is claimed is:

1. A fibrous structure comprising a plurality of filaments present in the fibrous structure at a level of less than 90% by weight of the fibrous structure on a dry basis and a plurality of solid additives, the fibrous structure further comprising:
(a) a first region, wherein the solid additives are present in the first region at a first average weight % as measured according to the TGA Test Method; and
(b) a second region, wherein the solid additives are present in the second region at a second average weight % different from the first average weight % as measured according to the TGA Test Method.

2. The fibrous structure according to claim 1 wherein the second region is dispersed throughout the first region.

3. The fibrous structure according to claim 1 wherein the first average weight % is from about 10% to about 90% as measured according to the TGA Test Method.

4. The fibrous structure according to claim 1 wherein the second average weight % is from about 10% to about 90% as measured according to the TGA Test Method.

5. The fibrous structure according to claim 1 wherein the ratio of the first average weight % to the second average weight % is greater than 1 as measured according to the TGA Test Method.

6. The fibrous structure according to claim 1 wherein the ratio of the first average weight % to the second average weight % is less than 1 as measured according to the TGA Test Method.

7. The fibrous structure according to claim 1 wherein the first region is a macroscopically monoplanar, patterned, first region.

8. The fibrous structure according to claim 1 wherein the filaments are present in the fibrous structure at a level of less than 90% but greater than 5% by weight of the fibrous structure on a dry basis.

9. The fibrous structure according to claim 1 wherein the solid additives are present in the fibrous structure at a level of greater than 10% by weight of the fibrous structure on a dry basis.

10. The fibrous structure according to claim 1 wherein the filaments and solid additives are commingled together.

11. The fibrous structure according to claim 1 wherein at least one of the filaments comprises a thermoplastic polymer.

12. The fibrous structure according to claim 11 wherein the thermoplastic polymer is selected from the group consisting of: polyolefins, polyesters, polyhydroxyalkanoates, polyhydroxybutyrates, and mixtures thereof.

13. The fibrous structure according to claim 1 wherein the solid additives comprise fibers.

14. The fibrous structure according to claim 1 wherein the first region and the second region exhibit a different value of at least one common micro-CT intensive property as measured according to the Micro-CT Test Method.

15. The fibrous structure according to claim 1 wherein the fibrous structure is a core component.

16. The fibrous structure according to claim 15 wherein the fibrous structure further comprises a scrim component.

17. The fibrous structure according to claim 16 wherein the scrim component comprises greater than 99% by weight of filaments.

18. The fibrous structure according to claim 1 wherein the fibrous structure comprises a liquid composition.

19. The fibrous structure according to claim 18 wherein the fibrous structure is a wet wipe.

20. The fibrous structure according to claim 1 wherein the fibrous structure is a floor cleaning pad.

Assignees

• Procter & Gamble

Inventors

• Wang Fei
• Suer Michael Donald
• Algers John Daniel
• Song Cunming
• Bao Hailing
• Debeer Antonius Lambertus
• Pung David John
• Barnholtz Steven Lee
• Weisman Paul Thomas

Classifications

• D21H27/005

  relating to physical or mechanical properties, e.g. tensile strength, stretch, softness · CPC title

• A47L13/17

  containing cleaning agents (A47L13/19 takes precedence {; chemical compositions C11D17/049}) · CPC title

• D21H27/002 Primary

  Tissue paper; Absorbent paper (D21H21/22, D21H27/02, D21H27/20 take precedence; toilet paper A47K10/00; absorbent pads for physiological fluids A61L15/16; making on paper-making machines D21F11/00) · CPC title

• D21H27/004

  characterised by specific parameters (D21H27/008 takes precedence) · CPC title

• A47K7/03

  containing soap or other cleaning ingredients, e.g. impregnated · CPC title