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. 29, 2003
Filed:
Sep. 27, 2001
Tsuaki Odaka, Tokyo-To, JP;
Abstract
In an ink composition comprising a phosphoric ester and a dye, if the phosphoric ester is composed of an acid-type phosphoric ester and a neutralized-type phosphoric ester, the phosphoric ester and the dye hardly react with each other. Therefore, when such an ink composition is used to form a dye layer, a constituent layer of a heat transfer printing sheet, the discoloration or fading of the dye layer is minimized. Further, a heat transfer printing sheet comprising a dye layer formed by using this ink composition shows improved separability from an image-receiving sheet after an image is thermally transferred to the image-receiving sheet, regardless of the material for the substrate of the image-receiving sheet. It is thus possible to obtain an excellent image on an image-receiving sheet.