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.

Date of Patent:
Jun. 14, 1994

Filed:

Sep. 11, 1992
Applicant:
Inventors:

Kazuhiro Shimura, Hino, JP;

Masafumi Uehara, Hino, JP;

Shinya Watanabe, Hino, JP;

Assignee:

Konica Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03D / ;
U.S. Cl.
CPC ...
354324 ;
Abstract

The improved method of development is implemented with an automatic processor for developing presensitized offset printing plates with a substantially virgin aqueous solution that contains an alkali silicate and that is supplied for each printing plate, said aqueous solution containing calcium ions in an amount of up to 10 mg/L. The improved developing apparatus comprises a means of mixing a concentrated developing solution with diluent water to prepare a working solution and a means of applying the working solution onto the surface of a presensitized offset printing plate being transported. The apparatus is characterized by further including a mechanism that performs ion-exchange on the diluent water before it is mixed with the concentrated developing solution.


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