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:
Aug. 09, 1988
Filed:
Jul. 30, 1986
Hiroshi Matsumoto, Kanagawa, JP;
Hitoshi Hagiwara, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The present invention provides a method of treating photosensitive printing plate, which comprises subjecting a photosensitive lithographic plate to exposure, development and burning-in treatment, characterized in that an aqueous solution containing phytic acid and aminobenzenesulfonic acid is applied to the lithographic plate after the development but prior to the burning-in treatment and then the burning-in treatment is conducted in the presence of these compounds. According to the invention, there can be prepared a lithographic plate free from background stain and having an excellent ink-receptive property in its image-forming area.