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:
Jun. 13, 1989
Filed:
Jan. 15, 1988
Applicant:
Inventors:
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ;
U.S. Cl.
CPC ...
503212 ; 427151 ; 428913 ; 503216 ; 503217 ; 503218 ; 503220 ; 503223 ; 503226 ;
Abstract
A heat-sensitive recording material is disclosed. The material is comprised of a support having thereon a heat-sensitive color forming layer comprising at least one electron-donating colorless dye and at least one electron-accepting compound, wherein the electron-donating colorless dye is a fluorene derivative having at least one substituted amino group and the electron-accepting compound has an acid group and a solubility in ethanol of 10 or less at 25.degree. C. The material exhibits improved color developability, improved preservability before recording, improved image stability, and improved chemical resistance.