Extensible and stretch laminates with comparably low cross-machine direction tension and methods of making same

US7833917B2 · kind B2 · utility

Assignee

• Kimberly-Clark Worldwide, Inc. · US

Inventors

• Lindsay Shelley · Appleton, US
• Thomas Brock · Hürth, DE
• Joy Francine Jordan · Marietta, US
• Renette E. Richard · Atlanta, US
• Christian Sanders · Winston-Salem, US
• Eric Scott Kepner · Fletcher, US
• Jared L. Martin · Cumming, US
• Wing-Chak Ng · Suwanee, US

Key dates

• Filing date: Dec 30, 2004
• Grant date: Nov 16, 2010
• Expiry date: Aug 3, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T442/601
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method of producing a laminate material includes the steps of providing a first flexible sheet material; providing a second flexible sheet material having a first surface and a second surface, and also having a first width of 1×; stretching the second flexible sheet material in a cross-machine direction to a second width of between about 1.2× and 3× when in a flattened state; necking the second flexible sheet material to produce an accordion shape, thereby reducing the second width of the sheet material to a third width, less than the width of the first width, such that the third width is between 0.65× to 0.975× when in an accordion shape; applying adhesive to the first surface of the second flexible sheet material with a slot coat adhesive process; and joining the first flexible sheet material to the first surface of the second flexible sheet material.