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Title:
ON-PRESS DEVELOPMENT TYPE LITHOGRAPHIC PRINTING ORIGINAL PLATE, METHOD FOR PRODUCING LITHOGRAPHIC PRINTING PLATE, AND LITHOGRAPHIC PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/262691
Kind Code:
A1
Abstract:
An on-press development type lithographic printing original plate which comprises a supporting body and an image recording layer on the supporting body, wherein: the image recording layer contains an infrared absorbent, a polymerization initiator, a polymerizable compound and a color developer precursor; and if the image recording layer is exposed to infrared laser light at the wavelength of 830 nm at the energy density of 110 mJ/cm2, the ethylenically unsaturated bond disappearance rate in the exposed region of the image recording layer relative to that in the unexposed region is from 10% to 40%. A method for producing a lithographic printing plate with use of the above-described lithographic printing original plate; and a lithographic printing method.

Inventors:
YOKOKAWA NATSUMI (JP)
ENOMOTO KAZUAKI (JP)
FUJITA AKINORI (JP)
NAMBA YUSUKE (JP)
SAKAGUCHI AKIRA (JP)
YAMAMOTO AKIRA (JP)
KOYAMA ICHIRO (JP)
Application Number:
PCT/JP2020/025413
Publication Date:
December 30, 2020
Filing Date:
June 26, 2020
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
B41N1/14; G03F7/00; G03F7/004; G03F7/027; G03F7/029; G03F7/033; G03F7/09; G03F7/11
Domestic Patent References:
WO2019013268A12019-01-17
WO2017141882A12017-08-24
WO2019004471A12019-01-03
WO2019150788A12019-08-08
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WO2018043125A12018-03-08
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Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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