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Patent Searching and Data


Title:
PLATE MAKING METHOD FOR PLANOGRAPHIC PRINTING PLATE
Document Type and Number:
Japanese Patent JPH05289347
Kind Code:
A
Abstract:

PURPOSE: To enable rapid processing, to enhance a maintenance characteristic and to enable the formation of a uniform printing image by recovering an unused developer by width adjusting type scraping blades from the developer in the non-contact part of a planographic printing plate and a liquid lifting roller.

CONSTITUTION: The liquid lifting coating roller 1a is partly immersed in the developer of a developer tank 2. This roller lifts the developer by rotation and applies and supplies the developer to a planographic printing plate P transported with its photosensitive surface downward. The developer is transferred to the planographic printing plate P from the coating roller 1a when the plate arrives at between the nips of the coating roller pair. The width adjusting type scraping blade 4 is brought into contact with the liquid lifting coating roller 1a to recover the unused developer in such a case. This width adjusting type scraping blade 4 has a function to adjust the scraping part in conformity with the width of the planographic printing plate P. The blade 5 for scraping the used developer sticking to the liquid lifting coating roller 1a is provided.


Inventors:
TANNO YOSHIYUKI
ANDO MASAKAZU
NOZAKI TSUNETO
Application Number:
JP9301792A
Publication Date:
November 05, 1993
Filing Date:
April 13, 1992
Export Citation:
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Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
G03F7/00; G03F7/07; G03F7/30; (IPC1-7): G03F7/07; G03F7/00; G03F7/30