The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 02, 2024
Filed:
Mar. 05, 2021
Dai Nippon Printing Co., Ltd., Tokyo, JP;
Yuuki Iwasaki, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo, JP;
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/m) for 50 hours, the portion having a reflection density of 0.5 or greater before being irradiated by the xenon lamp.