Release compositions for printable linerless labels

Details Release compositions for printable linerless labels Release compositions for printable linerless labels

C - Chemistry, Metallurgy

09

J

C09J 183/07 (2006.01) C09D 183/07 (2006.01) G09F 3/10 (2006.01)

Patent

CA 2144487

Linerless label stock is produced from a single substrate utilizing a coating machine by moving the substrate through the coating machine and applying a tie coating to the substrate first face, a release coating to the substrate second face, and a pressure sensitive adhesive to the tie coating. The release coating comprises a mixture of (a) about 55 to about 95 parts by weight of a first acrylated polysiloxane having the formula I: (see formula I) wherein m is about 40 and n ranges from about 8 to about 12; (b) about 5 to about 45 parts by weight of a second acrylated polysiloxane having the formula II: (see formula II) wherein m is about 180 and n ranges from about 8 to about 12; and c) about 2 to about 6 parts by weight of a photoinitiator. The substrate is cut out from individual labels, and is rolled up into a roll with the release coated second face on the outside of the roll. Printing may advantageously be applied to the release coating.

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