Patent ID: 6403190
Filing Date: 2002-06-11
Classification: B32B,C09J,D21H,Y10T

Abstract:
A composite release liner for use with label face stock, said release liner comprising:a paper substrate having first and second sides; and a paper-like polymer base layer extrusion coated onto the first side of said paper substrate, the polymer of said base layer being selected from the group consisting of polypropylene, high density polyethylene, medium density polyethylene, low density polyethylene, high molecular weight HDPE, linear low density polyethylene, and straight chained or branched or blends thereof, said paper-like polymer base layer containing filler material wherein the filler material is at least 10% by weight based on the total weight of said base layer, and said base layer has an exposed surface with a roughness of between about 10 to 400 Sheffield units and with coefficients of static and kinetic friction of between about 0.1 to 0.6.