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Title:
LITHOGRAPHIC PRINTING PLATE MATERIAL AND ITS MANUFACTURING METHOD AND PRINTER
Document Type and Number:
Japanese Patent JP2003312158
Kind Code:
A
Abstract:

To enable a lithographic printing plate material to be repeatedly used by recycling the material and to further shorten an image writing time and a plate recycling time occupying in a printing step in the recyclable material having a photosensing layer containing a photocatalyst, a method for manufacturing the same and a printer.

The lithographic printing plate material 5 comprises a layer containing the photocatalyst. An image can be written by an active light having a larger energy than the band gap energy of the photocatalyst, and a lithographic printing plate can be manufactured without wet developing. The plate can be repeatedly recycled and used. The material 5 further comprises: a base material 1; the photosensitive layer 3 containing the photocatalyst reacting with the light; and an intermediate layer 2 containing two or more types of oxide semiconductors and interposed between the material 1 and the layer 3 to improve the charge separating efficiency of the layer 3.


Inventors:
SUDA YASUHARU
OFUJI TOYOO
Application Number:
JP2002126722A
Publication Date:
November 06, 2003
Filing Date:
April 26, 2002
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
B01J35/02; B41C1/10; B41N1/14; G03F7/00; G03F7/004; B41F7/02; (IPC1-7): B41N1/14; B01J35/02; B41C1/10; B41F7/02; G03F7/00; G03F7/004
Attorney, Agent or Firm:
Yu Sanada