Patent ID: 8557371
Filing Date: 2013-10-15
Classification: B32B,B41M,C09D,Y10T

Abstract:
1. A coating composition for a facestock, comprising: a binder being a crosslinkable water-dispersible polymer comprising an ethylenically unsaturated moiety which is either provided as part of the backbone of or as a pendent sidechain of the water dispersible polymer, and wherein the coating composition is formulated so that said ethylenically unsaturated moiety is able to form a covalent bond with an ink by virtue of ethylenically unsaturated groups extant in the coating at the time the ink is applied thereto; and an aziridine crosslinker which is effective on its own to bind to both a surface of a facestock and components of the coating composition, wherein said aziridine crosslinker is the only crosslinker present in the coating composition, wherein said aziridine crosslinker is suitably formulated in the coating composition to be capable of binding and adhering the coating composition to the facestock, and wherein said aziridine crosslinker is present in the coating composition in an amount in excess of that required for stoichiometric crosslinking of the water dispersible polymer.