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. 11, 1996
Filed:
Jan. 27, 1995
Hiroyuki Kurokawa, Tokyo, JP;
Kazuhiko Ibaraki, Tokyo, JP;
Jun Urasaki, Tokyo, JP;
Akio Yoshida, Tokyo, JP;
Mitsubishi Paper Mills Limited, Tokyo, JP;
Abstract
The present invention provides a treating solution for lithographic printing plates having ink receptive silver images in which the compound having a mercapto group or a thione group and an oleophilic group which is added to improve ink-receptivity can be solubilized without damaging the ink-receptivity and with using no solvent and in which hydrophilic colloid particles are excellent in time stability. The solution contains at least one alkanolamine and a compound having a mercapto group or a thione group and an oleophilic group and being free from sulfo group and carboxyl group. Preferably, the solution additionally contains an amino acid and hydrophilic colloid particles which are inorganic fine particles having an average particle size of 0.1 .mu.m or less.