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:
Oct. 22, 2002
Filed:
Dec. 22, 2000
Toshifusa Hirano, Tokyo, JP;
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Abstract
A thermal transfer ribbon comprises a substrate and a color layer formed on the substrate, the color layer comprising a binder resin and a color material, and the color material is composed of a first carbon black having a dibutyl phthalate (DBP) oil absorption of 50-150 ml/100 g and a BET specific surface area of 50-250 m /g and a second carbon black having a DBP oil absorption of 350-500 ml/100 g and a BET specific surface area of 800-1300 m /g. The color layer contains the first and second carbon blacks at a total amount of 10-25 wt %. According to the structure described above, there can be provided a thermal transfer ribbon having a good anti-static property and capable of forming printed matters or images excellent in durability and image quality.