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Title:
METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE
Document Type and Number:
WIPO Patent Application WO/2013/046856
Kind Code:
A1
Abstract:
A method for producing a lithographic printing plate characterized in comprising the steps of: (a) supplying a negative-type lithographic printing plate precursor having, on a supporting body, an image-recording layer comprising a polymerizable compound, an infrared absorption agent, and an initiator represented by general formula (I) Ar1-I+-Ar2Z-, where Ar1 and Ar2 are benzene rings which may have a substituent group and which represent structures different from each other, and Z- represents a counter anion, the image-recording layer being removable by ink and/or dampening water, (b) subjecting the negative-type lithographic printing plate precursor to image exposure with an infrared laser, (c) exposing the plate for five minutes or more to white light each having an light emission peak at 400-500 nm and 500-600 nm but not emitting light at 380 nm or less, and (d) remove an unexposed portion by ink and/or dampening water to produce the lithographic printing plate.

Inventors:
MORI TAKANORI
Application Number:
PCT/JP2012/067584
Publication Date:
April 04, 2013
Filing Date:
July 10, 2012
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
MORI TAKANORI
International Classes:
B41C1/10; B41N1/14; G03F7/00; G03F7/029; G03F7/38
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Attorney, Agent or Firm:
TAKAMATSU Takeshi et al. (JP)
Takamatsu 猛 (JP)
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