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. 27, 1996
Filed:
Apr. 03, 1995
Konica Corporation, , JP;
Abstract
A method of producing a printing plate is disclosed, which comprises the steps of a) providing, on an aluminium support, a photo-hardenable light-sensitive layer on a 50 .mu.m or less thick film to obtain a light-sensitive plate, the surface on the light-sensitive layer side of said support is electrolytically etched in a nitric acid solution to have an average surface roughness R.sub.a of 0.1 to 0.6 .mu.m; b) imagewise exposing the photo-hardenable photosensitive layer of the light-sensitive plate; c) applying heat or pressure to the exposed light-sensitive plate; d) removing the exposed light-sensitive layer from the light-sensitive plate to leave an unexposed light-sensitive layer on the aluminium support; and e) overall exposing the unexposed light-sensitive layer to harden the same.