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Title:
PLANOGRAPHIC PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/132665
Kind Code:
A1
Abstract:
This planographic printing method involves a preparation step for preparing a planographic printing original plate comprising, on an aluminum support body, an image recording layer containing an acid color former and acid generator, an exposure step for exposing the planographic printing original plate, a developing step for supplying an acidic dampening solution onto the planographic printing original plate after exposure and removing the non-image part of the image recording layer, and a printing step; the aluminum support body includes an anodized film of aluminum, the anodized film has micropores, the value ΔS, calculated with ΔS = (Sx - S0)/S0×100(%) from the geometric measurement area S0 and the actual surface area Sx obtained using an atomic force microscope with the three-point approximation method from three-dimensional data obtained by 512×512 point measurement in a 25μm×25μm area on the image recording layer-side surface of the anodized film, is 15%-60%.

Inventors:
NAMBA YUSUKE (JP)
MATSUURA ATSUSHI (JP)
SAKAGUCHI AKIRA (JP)
Application Number:
PCT/JP2020/048991
Publication Date:
July 01, 2021
Filing Date:
December 25, 2020
Export Citation:
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Assignee:
FUJIFILM CORP (JP)
International Classes:
B41C1/10; B41M1/06; B41N1/14
Domestic Patent References:
WO2019087516A12019-05-09
WO2018043124A12018-03-08
WO2019013268A12019-01-17
WO2019044087A12019-03-07
WO2016047392A12016-03-31
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See also references of EP 4082791A4
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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