Importance

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Abstract

An adhesive strip, with improved barrier effect, encapsulates electronic arrangements against permeates, whereby the composite system comprises at least (a) an adhesive strip containing at least one pressure-sensitive adhesive substance for direct application on a substrate; and (b) at least one release liner which lies directly upon the pressure-sensitive adhesive substance, wherein the surface of the release liner, that faces the pressure-sensitive adhesive substance, has a surface roughness of less that 100 nm, measured as an arithmetic mean Sa as per ISO/FDIS 25178-2:2011 of the amounts of at least 10,000 height values of the profile of a partial surface of at least 200 μm×200 μm. A method produces a release liner with a smooth surface for equipping barrier adhesive strips by removing the liner in order to encapsulate electronic arrangements with the adhesive strip.

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First Claim