Coating of substrates
AssigneeCCL Label, Inc.
InventorMartin C. Sanderson
Life of this patent
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Abstract
The invention provides a substrate forming a web of primary labels. One side has a silicone release coating and the other side has pressure sensitive adhesive so that the web can be wound into roll form without the use of a carrier sheet. In order to enable overprinting or secondary labels to be anchored to the primary labels a keying coating is applied over the silicone release coating, said keying coating comprising basically a silicone low tack pressure sensitive adhesive mixed with an organic solvent.
Claims9
An improved linerless label of the type including a sheet substrate having silicone release coating on one side thereof and a pressure sensitive adhesive on the other side thereof, wherein the improvement comprises a keying coating applied to the release coating, at least a portion of said keying coating being outermost and exposed, said keying coating comprising a mixture of silicone low tack pressure sensitive adhesive and a solvent.
Dependencies are inferred from the claim text.