Title:
LITHOGRAPHIC PRINTING PLAT AN ITS TREATMENT
Document Type and Number:
Japanese Patent JP3474371
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain excellent printing quality without white spots in an image part by incorporating an acetylene glycol compd.
SOLUTION: Acetylene grycol is a compd. having acetylene bonds (carbon- carbon triple bonds) and alcohols (ROH, wherein R is an alkyl group) in the molecule, and especially each of two carbons adjacent to triple bounds of the alkyne have two hydroxyl groups. This acetylene grycol compd. is incorporated into a lithographic printing plate. By this method, corrosion of an aluminum supporting body during storage after the production of a lithographic printing plate and before the plate making process can be prevented. Or, corrosion of the aluminum supporting body is prevented by treating the plate with a developer containing an acetylene glycol compd. Or, by adding an acetylene grycol compd. to a soln. and/or finishing soln., corrosion of the aluminum supporting body when the plate is stored after the plate making process can be prevented.
Inventors:
Toshiro Kondo
Application Number:
JP25628096A
Publication Date:
December 08, 2003
Filing Date:
September 27, 1996
Export Citation:
Assignee:
Mitsubishi Paper Mills Co., Ltd.
International Classes:
G03F7/004; C07C33/042; G03C8/28; G03F7/00; G03F7/07; G03F7/32; (IPC1-7): G03F7/07; C07C33/042; G03C8/28; G03F7/00
Domestic Patent References:
| JP5232619A |
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