Thermal transfer sheet and printed article
AssigneeDai Nippon Printing Co., Ltd.
InventorYuuki IWASAKI
Life of this patent
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Abstract
A thermal transfer sheet includes a dye layer disposed on a first surface of a substrate film. The dye layer includes a decolorizable dye. The decolorizable dye has a color difference ΔE*ab between a color A and a color B of 10 or less, where the color A is a color of a transfer-receiving body before the decolorizable dye is transferred to the transfer-receiving body, the color B is a color of a portion of the transfer-receiving body with the decolorizable dye having been transferred thereto, and the color of the portion is a color after the portion is irradiated by a xenon lamp at an irradiation intensity of 1.2 (W/m2) for 50 hours, the portion having a reflection density of 0.5 or greater before being irradiated by the xenon lamp.
Claims10
A thermal transfer sheet comprising a dye layer disposed on a first surface of a substrate film, wherein
- the dye layer includes a decolorizable dye, and
- the decolorizable dye has a color difference ΔE*ab between a color A and a color B of 10 or less, where the color A is a color of a transfer-receiving body before the decolorizable dye is transferred to the transfer-receiving body, the color B is a color of a portion of the transfer-receiving body with the decolorizable dye having been transferred thereto, and the color of the portion is a color after the portion is irradiated by a xenon lamp at an irradiation intensity of 1.2 (W/m2) for 50 hours, the portion having a reflection density of 0.5 or greater before being irradiated by the xenon lamp.
A thermal transfer sheet comprising a dye layer disposed on a first surface of a substrate film, wherein
- the dye layer includes a decolorizable dye, and
- the decolorizable dye is at least one of a compound represented by structural formula (1) below, a compound represented by structural formula (2) below, a compound represented by structural formula (3) below, and a compound represented by structural formula (4) below:
8-15. (canceled)
A printed article comprising:
- a substrate;
- a receiving layer disposed on the substrate and having an image formed therein;
- a protective layer disposed on the receiving layer;
- and
- a melt transfer layer disposed on the protective layer and including a decolorizable dye, wherein
- the decolorizable dye includes at least one of a dye including a compound represented by structural formula (1) below, a dye including a compound represented by structural formula (2) below, a dye including a compound represented by structural formula (3) below, and a dye including a compound represented by structural formula (4) below:
(canceled)
Dependencies are inferred from the claim text.