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:
Jan. 01, 2013
Filed:
Dec. 08, 2006
Hiroyuki Yamashita, Tokyo-to, JP;
Tadahiro Ishida, Tokyo-to, JP;
Keiji Hirose, Tokyo-to, JP;
Hirotaka Watanabe, Tokyo-to, JP;
Toshikazu Kuwabara, Tokyo-to, JP;
Daisuke Fukui, Tokyo-to, JP;
Hideo Ito, Tokyo-to, JP;
Hiroyuki Yamashita, Tokyo-to, JP;
Tadahiro Ishida, Tokyo-to, JP;
Keiji Hirose, Tokyo-to, JP;
Hirotaka Watanabe, Tokyo-to, JP;
Toshikazu Kuwabara, Tokyo-to, JP;
Daisuke Fukui, Tokyo-to, JP;
Hideo Ito, Tokyo-to, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
It is an object of the present invention to provide a thermal transfer sheet which has a high transfer sensitivity in thermal transfer printing to obtain a high density print, has a high sharpness of thermal transfer images, can prevent an abnormal transfer in printing even after being stored at high temperature and high humidity, and can provide a sufficiently satisfactory printed matter. The above object is achieved by a thermal transfer sheet comprising: a substrate; a heat resistant slip layer provided on one side of the substrate; an undercoat layer and a dye layer provided in that order on the other side of the substrate, wherein the undercoat layer is formed by applying and drying a coating liquid which contains, as main components, a water soluble self cross-linking resin and colloidal inorganic pigment ultrafine particles, and cross-linking polymerizing the water soluble self cross-linking resin, or wherein the undercoat layer is formed by using colloidal inorganic pigment ultrafine particles and a copolymer resin of vinyl pyrrolidone and vinyl acetate as main components.