Support for lithographic printing plate material, process for producing the same and lithographic printing plate material therefrom

A technology for lithographic printing plates and manufacturing methods, applied to the field of supports for lithographic printing plate materials and lithographic printing plate materials, capable of solving the problems of tone reproducibility, printing resistance, insufficient pollution prevention, contamination, small dot damage, etc., Achieve excellent effect of pollution prevention
CN101341031AInactive Publication Date: 2009-01-07KONICA MINOLTA MEDICAL & GRAPHICS INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
KONICA MINOLTA MEDICAL & GRAPHICS INC
Publication Date
2009-01-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

A photosensitive lithographic printing plate material that at the time of printing under high printing pressure, realizes excellent tone reproduction, plate wear resistance and stain prevention performances; a support for providing the same; a process for producing the support; and a process for producing the photosensitive lithographic printing plate material. The process for producing the support for lithographic printing plate material is characterized by sequentially subjecting an aluminum plate containing 0.1 to 0.4 mass% Mg (magnesium), 0.001 to 0.02 mass% Ga (gallium) and 99.0 mass% or more Al (aluminum) to specified treatments.
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Description

technical field

[0001] The present invention relates to a support for lithographic printing plate materials, a method for producing the same, and a lithographic printing plate material using the same. In particular, the present invention relates to photosensitive lithographic printing plate materials used in so-called computer-to-plate (hereinafter referred to as CTP) systems. Background technique

[0002] In recent years, digital technology that uses computer for electronic processing, storage, and output of image information has been widely popularized. In the printing plate production technology for offset printing, according to the digital image information, scanning directional high laser, in the direct photosensitivity A so-called CTP system for recording on lithographic printing plates has been developed and is moving toward practical use.

[0003] Among them, in the field of printing which requires high printing resistance, it is known to use a printing plate materi...

Claims

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