STRUCTURED FLEXIBLE CARRIER WEB BEARING A LAYER OF SILICONE ON PREDETERMINED SURFACES

摘要

A flexible carrier web has a planar surface bearing thereon a predetermined pattern consisting of at least one flat land area and at least one recess having a base and walls, and a layer of silicone on the land and/or the base of the recess while the walls of tho recess are substantially free from the silicone. When that flexible carrier web is used as the backing of a pressure-sensitive adhesive layer, release values can be controlled simply by selecting the siz e and/or number of recesses.