Pattern embossed multilayer microporous films
AssigneeKimberly-Clark Worldwide, Inc.
InventorsAnn Louise McCormack, Joy Francine Jordan, William Bela Haffner, Mark John Beitz, Hong Y. Lin
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Abstract
Pattern embossed low gauge films are disclosed having multiple microporous film layers with distinct coloration, such as a dark colored layer and a light colored layer, wherein the color of the underlying film causes a visible color contrast only at the embossed regions and yet does not discolor the outer most layer. Also disclosed are film laminates and personal care articles incorporating such multilayer films.
Claims23
A multilayer film comprising:
- a first microporous layer having a thickness less than about 30 micrometers and comprising (i) at least 35%, by weight, filler and (ii) polymer;
- a second microporous layer substantially continuously joined to said first layer, said second layer having a thickness less than about 30 micrometers and comprising (i) at least 35%, by weight, filler, (ii) polymer and (iii) a coloring agent;
- said multilayer film having a total basis weight less than about 45 g/m2, a WVTR in excess of 500 g/m2/24 hours and a hydrohead of at least 50 mbars and further wherein said multilayer film has embossed and non-embossed regions wherein the embossed regions color-contrast with said non-embossed regions.
The multilayer film of clam 9 wherein the color of said second layer is selected form the group consisting of purple, blue, pink, green, yellow and red.
Dependencies are inferred from the claim text.