Printable coating
AssigneeInnovia Films Limited
InventorsAlastair Hugh Servante, Simon James Read
Life of this patent
Estimating the term…
Abstract
A primer-less coating composition for facestock comprises: a binder being a water-dispersible polymer; an ethylenically unsaturated compound which is aqueous-dispersible and miscible with or bonded to said water-dispersible polymer, wherein said ethylenically unsaturated compound is able to form a covalent bond with an ink; and a crosslinker, wherein said crosslinker is suitable for binding the coating to the facestock. The coating composition may be applied to a substrate to form a printable film. A printed film in accordance with the invention may be used in a label, for example for use on a container such as a bottle.
Claims20
A coating composition for facestock, comprising:
- a binder being a crosslinkable water-dispersible polymer comprising an ethylenically unsaturated moiety able to form a covalent bond with an ink, wherein said binder comprises a polyurethane acrylate, wherein said polyurethane acrylate is the only compound in said coating composition comprising an ethylenically unsaturated moiety;
- and
- a crosslinker,
- wherein said crosslinker is present in an amount in excess of that required for stoichiometric cross-linking of the water dispersible polymer,
- wherein said coating composition is formulated so that the crosslinker is able to substantially adhere the coating composition to the facestock in the absence of a primer layer therebetween and so that the coating composition is capable of forming an ink-receptive surface suitable for printing.
Dependencies are inferred from the claim text.