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:
Sep. 02, 1980
Filed:
Sep. 20, 1978
Applicant:
Inventors:
Yasuo Tsubai, Nagaokakyo, JP;
Shigeyoshi Suzuki, Nagaokakyo, JP;
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ; G03F / ;
U.S. Cl.
CPC ...
430204 ; 430302 ;
Abstract
A lithographic printing plate which utilizes a photographic process and which is excellent in ink-repellency of non-image areas, have no stains with oily materials or fingerprints of workers, shows no reduction of ink-repellency of non-image areas and ink-receptivity of image areas with the lapse of time and can provide prints with no stains and clear images is produced by a neutralizing solution used in photographic treatment containing colloidal fine particles, preferably in combination with a hygroscopic polyol compound.