LITHOGRAPHIC PRINTING PLATE MASTER AND PLATE MAKING METHOD USING THE SAME

WIPO Patent Application WO/2012/043241

A1

A lithographic printing plate master, and plate making method using the same, that enable plates to be made directly from digital data of devices such as computers by printing using a laser beam, and specifically enable development on a printer, have superior developability, and are highly sensitive, with satisfactory plate durability and dirt resistance. The lithographic printing plate master has a support member, an undercoat layer, and an image recording layer, in that order, and enables deletion of an unexposed section by supplying printing ink after image exposure on the image recording layer, the image recording layer containing (A) a polymerization initiator, (B) a polymeric compound, and (C) a binder polymer, characterized in that the undercoat layer contains a copolymer (D1) having (a1) repeating units with a zwitterion structure, and (a2) repeating units with a structure that is congruent with the support body surface, and a copolymer (D2) having (a3) repeating units with ethylenically unsaturated bonds, and (a2) repeating units with a structure that is congruent with the support body surface, the weight of the copolymer (D1) being 5 to 95% with respect to the total weight of the copolymers (D1) and (D2).

SATO TAKASHI
ABE JUNYA
IWAI YU

PCT/JP2011/071007

April 05, 2012

September 14, 2011

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FUJIFILM CORP (JP)
SATO TAKASHI
ABE JUNYA
IWAI YU

B41N1/14; G03F7/00; G03F7/027; G03F7/11

JP2009237377A	2009-10-15
JP2009047754A	2009-03-05
JP2008213177A	2008-09-18
JP2008077078A	2008-04-03
JP2007118579A	2007-05-17
JP2006264333A	2006-10-05

TAKAMATSU Takeshi et al. (JP)
Takamatsu 猛 (JP)

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