EXTRUSION COATED PERFORATED NONWOVEN WEB AND METHOD FOR MAKING

Title:

EXTRUSION COATED PERFORATED NONWOVEN WEB AND METHOD FOR MAKING

Document Type and Number:

WIPO Patent Application WO/2011/075669

Kind Code:

A3

Abstract:

A method for making an extrusion coated perforated nonwoven web. The method comprises the steps of extruding a molten polyethylene coating onto a nonwoven web, and aperturing the molten polyethylene coating through heat and pneumatic pressure differential to create microperforations therein at a density of between about 35 and about 120 perforations per linear inch. The resulting microperforated nonwoven web is then thermomechanically perforated by feeding it through perforating rolls, at least one of which has raised protuberances to create macroperforations that extend through at least the polyethylene coating. The macroperforations have a density of between about 6 and about 35 perforations per linear inch. The perforated nonwoven web is useful as a topsheet for absorbent articles.

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Inventors:

CREE JAMES W (US)

Application Number:

PCT/US2010/061084

Publication Date:

November 03, 2011

Filing Date:

December 17, 2010

Export Citation:

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Assignee:

ADVANTAGE CREATION ENTPR LLC (US)
CREE JAMES W (US)

International Classes:

B32B27/12; B32B37/00; B32B38/06

Foreign References:

US20070249253A1	2007-10-25
US20060234586A1	2006-10-19
US20060087053A1	2006-04-27
US5399174A	1995-03-21
US20040005457A1	2004-01-08
US6286145B1	2001-09-11
US7476632B2	2009-01-13
US5695377A	1997-12-09

Other References: