Thermal transfer sheet
AssigneeDai Nippon Printing Co., Ltd.
InventorsMegumi Ikeda, Tadahiro Ishida, Yuzu Imakura, Yusuke Narumi
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Abstract
Provided is a thermal transfer sheet that can form a good image on both a transfer object made of a polyethylene terephthalate and a transfer object made of a polypropylene, as well as can form an image with high alcohol resistance. The thermal transfer sheet of the present invention includes a substrate, and a transfer layer including a colored layer and an adhesive layer, in which the adhesive layer has a phase-separated structure formed by a polyester and a polyolefin that are incompatible with each other, and in which the percentage of the region formed by one of the polyester and the polyolefin to the total area (100%) of the adhesive layer is 55% or more and 85% or less.
Claims10
A thermal transfer sheet, comprising:
- a substrate;
- and
- a transfer layer comprising a colored layer and an adhesive layer,
- wherein the adhesive layer has a phase-separated structure formed by a polyester and a polyolefin that are incompatible with each other,
- wherein a percentage of a region formed by one of the polyester and the polyolefin to a total area (100%) of the adhesive layer is 55% or more and 85% or less,
- wherein the polyolefin is a chlorinated polyolefin,
- wherein the transfer layer further comprises a peeling layer located under the colored layer,
- wherein the peeling layer contains polyethylene glycol having a number average molecular weight in a range of 8,000 to 23,000, and
- wherein a content of the polyester in the adhesive layer is in a range of 61% by mass to 87% by mass.
Dependencies are inferred from the claim text.