초록 ▼

An improved release coating for heat transferable laminates wherein an ink design layer is transferred from a carrier web onto an article such as a plastic or glass container upon application of heat and pressure. The improved release coating transfers with the ink design layer and forms an opticall

An improved release coating for heat transferable laminates wherein an ink design layer is transferred from a carrier web onto an article such as a plastic or glass container upon application of heat and pressure. The improved release coating transfers with the ink design layer and forms an optically clear protective coating over the transferred ink design layer. The transferred release coating upon resolidification has an exceedingly high optical clarity, with no hazing, spotting, or halo discernible over the transferred ink design layer. The improved release coating incorporates a tackifying resin in a wax base. The wax base includes a montan wax and a crystalline wax such as paraffin wax. The wax base may also include a microcrystalline wax component. The preferred tackifying resin is selected from the polyterpene class.

대표청구항 ▼

An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article upon application of heat to the support member while said article contacts the substrate, wherein the substrate comprises in sequence a release lay

An improved heat transferable laminate of the type comprising a substrate affixed to a support member for transfer from the support member to an article upon application of heat to the support member while said article contacts the substrate, wherein the substrate comprises in sequence a release layer in contact with the support member and an ink design layer over the release layer, wherein an improved release layer comprises: a paraffin wax comprising linear saturated C18 to C32 hydrocarbon having a melting point between about 110°F. and 150°F., a montan wax being oxidized, esterified, and partially saponified, and a thermoplastic tackifying resin comprising a transparent nonwax hydrocarbon polymer comprising polyterpene, said tackifying polymer having a softening point between about 80°C. and 135°C., which tackifying polymer resists oxidation under ambient conditions and has a Color Gardner No. of between about 1 and 4, the tackifying polymer\s resistance to oxidation preventing dulling of the ink design layer after the substrate has been transferred to an article, wherein the paraffin wax comprises between about 15 to 30 percent by weight of said release layer, the montan wax comprises between about 15 to 35 percent by weight of said release layer and the tackifying polymer comprises between about 15 to 50 percent by weight of said release layer.