Treated apertures

Patent metadata

Field	Value
Publication number	US-9237973-B2
Application number	US-201213362915-A
Country	US
Kind code	B2
Filing date	Jan 31, 2012
Priority date	Jan 31, 2012
Publication date	Jan 19, 2016
Grant date	Jan 19, 2016

Abstract

A personal care article comprising a nonwoven fluid permeable topsheet having a body-facing surface and an opposing backside surface, a fluid impermeable backsheet and at least one intermediate layer disposed therebetween, wherein said fluid permeable topsheet comprises apertured holes wherein at least 10% of the aperture holes are treated with a hydrophilic treatment agent.

First claim

What is claimed is:

1. A personal care article comprising a nonwoven fluid permeable topsheet having a body-facing surface and an opposing backside surface, a fluid impermeable backsheet and at least one intermediate layer disposed therebetween, wherein the fluid permeable topsheet comprises apertured holes wherein at least 10% of the aperture holes include a treatment rendering the aperture holes more hydrophilic than untreated portions of the fluid permeable topsheet, and wherein the fluid permeable topsheet other than the aperture holes comprises a surface composition selected from a hydrophobic composition, a superhydrophobic composition and combinations thereof.

2. The personal care article of claim 1 wherein the treatment rendering the aperture holes more hydrophilic is a surfactant.

3. The personal care article of claim 2 wherein said surfactant is nonionic.

4. The personal care article of claim 1 wherein the treatment rendering the aperture holes more hydrophilic further comprises a viscoelastant agent selected from the group consisting of sodium citrate, dextran, cysteine, glucopan and combinations thereof.

5. The personal care article of claim 1 wherein the treatment rendering the aperture holes more hydrophilic is selected from the group consisting of polyethylene glycol laurates, polyethylene glycol lauryl ethers, and combinations thereof.

6. The personal care article of claim 1 wherein the nonwoven fluid permeable topsheet is spunbond, meltblown, coform, air-laid, bonded-carded web materials, hydroentangled (spunlace) materials, combinations thereof and the like.

7. The personal care article of claim 1 wherein the surface composition is a hydrophobic composition disposed on the body-facing surface and/or the opposing back side surface.

8. The personal care article of claim 7 wherein said hydrophobic composition is a modified perfluorinated polymer.

9. The personal care article of claim 7 wherein said hydrophobic composition is selected from the group consisting of silicones, fluorochemicals, zirconium compounds, oils, latexes, waxes, crosslinking resins, and blends thereof.

10. The personal care article of claim 9 wherein said flourochemical compounds are selected from urethanes, ureas, esters, ethers, alcohols, epoxides, allophanates, amides, amines (and salts thereof), acids (and salts thereof), carbodiimides, guanidines, oxazolidinones, isocyanurates, and biurets.

11. The personal care article of claim 1 wherein said apertured holes comprises a diameter that is larger on said body-facing surface of the nonwoven topsheet than on the opposing backside of said nonwoven topsheet.

12. The personal care article of claim 11 wherein said aperture hole diameter measured on said body-facing surface of said nonwoven topsheet is from less than about 2 mm to less than about 5 mm.

13. The personal care article of claim 12 wherein said aperture hole density measured on said body-facing surface of said nonwoven topsheet is less than about 9.3×10 5 holes per m 2 .

14. The personal care article of claim 13 wherein said aperture hole density is from about 1.6×10 5 to about 3.1×10 5 holes/m 2 .

15. A personal care product comprising an absorbent article wherein the absorbent article comprises a nonwoven fluid permeable topsheet, a fluid impermeable backsheet, an absorbent core and at least one intermediate layer disposed there between, wherein the fluid permeable topsheet comprises apertured holes wherein at least 10% of the aperture holes include a treatment rendering the aperture holes more hydrophilic than untreated portions of the fluid permeable topsheet, and wherein the fluid permeable topsheet other than the aperture holes comprises a surface composition selected from a hydrophobic composition, a superhydrophobic composition and combinations thereof.

16. A personal care article comprising a nonwoven fluid permeable topsheet having a body-facing surface and an opposing backside surface, a fluid impermeable backsheet and at least one intermediate layer disposed therebetween, wherein the fluid permeable topsheet comprises apertured holes wherein at least 10% of the aperture holes include a treatment rendering the aperture holes more hydrophilic than untreated portions of the fluid permeable topsheet, and wherein the fluid permeable topsheet comprises a surface composition is a superhydrophobic composition.

Assignees

• Abuto Frank P
• Forthofer Marsha R
• Cieslak Nicole E
• Waldroup Donald E
• Kimberly Clark Co

Inventors

• Abuto Frank P
• Forthofer Marsha R
• Cieslak Nicole E
• Waldroup Donald E

Classifications

• A61P17/00

  Drugs for dermatological disorders · CPC title

• A61F13/47

  Sanitary towels, incontinence pads or napkins (A61F13/49 takes precedence) · CPC title

• A61K31/195

  having an amino group · CPC title

• A61F13/51

  characterised by the outer layers of the pads (A61F13/20 takes precedence) · CPC title

• A61F13/472

  specially adapted for female use · CPC title