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:
Feb. 20, 2001
Filed:
Mar. 26, 1999
Applicant:
Inventors:
Tomoyuki Idehara, Tokyo-to, JP;
Keiji Hirose, Tokyo-to, JP;
Assignee:
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/40 ;
U.S. Cl.
CPC ...
B41M 5/40 ;
Abstract
A thermal transfer sheet of the present invention comprises a substrate, a primer layer and a heat fusible ink layer, the heat fusible ink layer being disposed on one side of the substrate via the primer layer containing at least fine particles of urethane resin at an amount in a range of 10 to 60% by weight. The thermal transfer sheet is improved in retentivity of the substrate for the heat fusible ink layer and transfer sensitivity of the heat fusible ink layer as well as quality of print and resistances to solvent and friction.