Importance

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Abstract

A release liner for business form and label constructions comprises a substrate of carbonizing bond paper having a weight of between about 35-80 grams per square meter. A radiation (e.g. U.V.) curable silicone polymer blend is coated on the first face of the substrate with a coating weight of between about 0.8-2.3 grams per square meter. The silicone polymer blend comprises a large part base silicone polymer and optionally up to 40% of tight release additive, about 1 to 5% photoinitiator, and possibly substantially inert ingredients. A paper face of the form or label having a weight of between about 65-99 grams per square meter has a hot melt permanent or removable pressure sensitive adhesive on one of its faces, either applied directly or transferred to it if coated on the silicone, the adhesive in contact with the release liner. The form or label is substantially curl free after running through a laser printer.

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First Claim