Patent ID: 7887667
Filing Date: 2011-02-15
Classification: B41M,Y10T

Abstract:
1. A method of making a heat transfer material for use to transfer toner ink to a substrate, the method comprising: forming a splittable layer overlying a base sheet; forming a toner ink image-receptive coating overlying the splittable layer to form the heat transfer material, wherein the toner ink image-receptive coating comprises thermoplastic polyolefin wax microparticles in an amount from about 10% to about 75% by weight based on the dry weight of the toner ink image-receptive coating, a thermoplastic binder, and a humectant, wherein the thermoplastic polyolefin wax microparticles have an average particle size of from about 30 microns to about 50 microns and melt at temperatures between about 130° C. and about 200° C., wherein the thermoplastic polyolefin wax microparticles comprise a thermoplastic polyolefin wax polymer having a weight average molecular weight of about 10,000 to about 15,000, and wherein the humectant comprises urea; and drying the heat transfer material, wherein the humectant is configured to draw moisture back into the heat transfer sheet after drying.