Patent ID: 8252400

Claim:
A heat-transfer label assembly suitable for use in labeling a glass container, said heat-transfer label assembly consisting of: (a) a carrier, said carrier consisting of a paper substrate overcoated with a layer of polyethylene; (b) a wax skim coat deposited onto said polyethylene layer of said carrier, said wax skim coat having a thickness of about 0.1-0.4 lbs, per 3000 square feet; and (c) a heat-transfer label, said heat-transfer label being deposited directly onto said wax skim coat for transfer of said heat-transfer label from said carrier to an article under conditions of heat and pressure, said heat-transfer label consisting of one or more ink design layers, each of said ink design layers being thermosetting and consisting of a binder, a colorant and a cross-linking system, said binder consisting of a copolyester resin and a vinyl chloride/vinyl acetate resin, said cross-linking system consisting of (i) a cross-linking resin for cross-linking said binder, said cross-linking resin consisting of a melamine-formaldehyde resin and (ii) a heat-activatable catalyst for catalyzing said cross-linking within about 1-2 minutes after said ink design layer has been transferred to an article that has been pre-heated, prior to label transfer, to a temperature of about 250° F.-325° F., said heat-activatable catalyst consisting of an amine-blocked sulfonic acid catalyst.