Thermal transfer sheet, thermal transfer method and thermal transfer system
AssigneeDai Nippon Printing Co., Ltd.
InventorToshifusa Hirano
Life of this patent
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Abstract
The present invention provides a thermal transfer sheet, a thermal transfer method and a thermal transfer system using thermal transfer sheet. The thermal transfer sheet provided with a coloring layer and the adhesive layer being disposed on the substrate in this order, wherein the adhesive layer is formed of a mixture comprising a copolymerization product (A) obtainable by polymerizing an α-olefin/a maleic acid anhydride copolymer with a maleic acid anhydride monoester and an ethylene/vinyl acetate copolymer (B). The thermal transfer sheet is superior in storage stability in a rolled condition and in printing quality, and also capable of forming a print products having excellent functions as to durability such as wear resistance and heat resistance in high-speed printing.
Claims7
A thermal transfer sheet comprising a substrate, a coloring layer including a heat meltable ink, and an adhesive layer, the coloring layer and the adhesive layer being disposed on one side of the substrate in this order from a side near the substrate, wherein the adhesive layer is farmed of a mixture comprising a copolymerization product (A) obtainable by polymerizing an α-olefin/a inside acid anhydride copolymer with a maleic acid anhydride monoester and an ethylene/vinyl acetate copolymer (B).
A thermal transfer method comprising the steps of:
- providing a thermal transfer sheet comprising a substrate, a coloring laye including a heat meltable ink, and an adhesive layer, the coloring, layer and the adhesive layer being disposed on one side of the substrate in this order from a side near the substrate, wherein the adhesive layer is formed of a mixture comprising a copolymerization product (A) obtainable copolymerizing an α-olefin/a maleic acid anhydride copolymer with a maleic acid anhydride monoester and an ethylene/vinyl acetate copolymer (B), end carrying out the printing by heating the thermal transfer sheet by means of a thermal transfer printer having an end face type thermal head.
A thermal transfer system comprising:
- A thermal transfer sheet comprising a substrate, a coloring layer and an adhesive layer, the coloring layer including a treat meltable ink, and the adhesive layer being disposed on one side of the substrate in this order from a side near the substrate, wherein the adhesive layer is formed of a mixture comprising a copolymerization product (A) obtainable by polymerizing an α-olefin/a maleic acid anhydride copolymer with a maleic acid anhydride monoester and an ethylene/vinyl acetate copolymer (B), and a thermal transfer printer having an end face type thermal head for heating the thermal transfer sheet according to the image information.
Dependencies are inferred from the claim text.