Title:
PLANOGRAPHIC PRINTING PLATE FOR BACK EXPOSURE
Document Type and Number:
Japanese Patent JP2549779
Kind Code:
B2
Abstract:
PURPOSE: To provide a planographic printing plate for back exposure high it sensitivity and excellent in ink/water responsiveness, contamination resistance by silver complex salt diffusion transfer process.
CONSTITUTION: In the planographic printing plate for back exposure made by successively applying at least one of an under coating layer, a silver halide emulsion layer and a physical development nuclear on a supporting body, which is a polyester film coated with an organic copolymer and treated for hydrophilicity, sum of transmitting density of each constituting layer, through which light is passed when exposing from back side, is ≤0.8, a mat making agent of 0.1-2.0g/m2 is contained in a coating layer of surface side containing the silver halide emulsion layer, a non-expansive latex to water is contained in the under coating layer and center line av. roughness, Ra value, of the planographic printing plate is regulated to ≤1.2.
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Inventors:
YOSHIDA AKIO
BABA HIDEAKI
MURAGATA TETSUNOBU
BABA HIDEAKI
MURAGATA TETSUNOBU
Application Number:
JP26876491A
Publication Date:
October 30, 1996
Filing Date:
September 19, 1991
Export Citation:
Assignee:
MITSUBISHI PAPER MILLS LTD
International Classes:
G03F7/07; G03F7/09; G03F7/11; (IPC1-7): G03F7/07; G03F7/09; G03F7/11
Domestic Patent References:
| JP63249852A | ||||
| JP63226658A |