Apertured polymeric film webs and absorbent articles using such webs

Patent metadata

Field	Value
Publication number	US-10124556-B2
Application number	US-201715584165-A
Country	US
Kind code	B2
Filing date	May 16, 2017
Priority date	Apr 7, 2000
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A method for making an apertured polymeric film web is disclosed herein. The polymeric film web may be utilized as a topsheet in an absorbent article and can provide fluid handling and softness benefits.

First claim

What is claimed is:

1. A method for making an apertured polymeric film-based web for use in an absorbent article, the apertured polymeric film-based web comprising a first surface and an opposing second surface, said method comprising the steps of:
a. providing a forming structure comprising a plurality of perforations;
b. providing the polymeric film-based web to the forming structure;
c. forming a first plurality of apertures having a first diameter, wherein the first plurality of apertures are formed via hydroforming or vacuum forming; and
d. forming a second plurality of apertures having a second diameter that is greater than the first diameter, wherein the second plurality of apertures are formed via needles or heatable pins.

2. The method of claim 1 , further comprising the step of forming a composite structure wherein said polymeric film-based web is disposed on a nonwoven web layer.

3. The method of claim 2 , further comprising the step of extruding the polymeric film based web onto a carrier web.

4. The method of claim 3 , wherein the nonwoven web layer is the carrier web.

5. The method of claim 4 , further comprising the step of providing the nonwoven web layer to the forming structure with the polymeric film-based web as a composite structure.

6. The method of claim 1 , wherein the polymeric film-based web is hydrophobic.

7. The method of claim 1 , wherein the polymeric film-based web is hydrophilic.

8. The method of claim 1 , wherein the first plurality of apertures comprise a plurality of three dimensional surface structures.

9. The method of claim 8 , wherein the three dimensional surface structures extend from the first surface.

10. The method of claim 1 , further comprising the step of extruding the polymeric film-based web onto a carrier web.

11. The method of claim 10 , wherein the first plurality of apertures comprise a plurality of three dimensional surface structures.

12. The method of claim 3 further comprising the step of coordinating a speed of travel of the carrier web and a speed of extrusion of the polymeric film-based web.

13. The method of claim 2 , wherein the first surface of the composite structure is hydrophobic and wherein the second surface of the composite structure is hydrophilic.

14. The method of claim 13 , wherein the first surface is comprised by the polymeric film-based web and the second surface is comprised by the nonwoven web layer.

15. The method of claim 13 , wherein the first surface is comprised by the nonwoven web layer and the second surface is comprised by the polymeric film-based web.

Assignees

• Procter & Gamble

Inventors

• Lee Yann-Per
• Fereshtehkhou Saeed
• Stone Keith Joseph

Classifications

• B26F1/10

  Roller type punches · CPC title

• Y10T428/24273

  including aperture · CPC title

• B29C48/14

  characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration · CPC title

• A61F2013/1543

  with a density gradient in the horizontal plane · CPC title

• Y10T428/249953

  Composite having voids in a component [e.g., porous, cellular, etc.] · CPC title