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:
Jul. 25, 2000
Filed:
Oct. 30, 1998
Applicant:
Inventor:
John Michael Kitteridge, Leeds, GB;
Assignee:
Agfa-Gevaert, N.V., Mortsel, BE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430432 ; 134 15 ; 134 34 ;
Abstract
A wash liquor for use in the decoating of a silver halide diffusion transfer printing plate comprises an aqueous solution containing at least one organic or inorganic acid salt, such as the silicate, metasilicate, tartrate, citrate, hydroxycarboxylate, borate, hexametaphosphate, tripolyphosphate or pyrophosphate of sodium or potassium. The liquor preferably also contains at least one of a non-ionic surfactant, an enzyme and a biocide. A process for the decoating of the said printing plate is also disclosed.