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Title:
WATER-DEVELOPABLE PHOTOSENSITIVE RESIN COMPOSITION FOR FLEXOGRAPHIC PRINTING USE, AND PHOTOSENSITIVE RESIN ORIGINAL PLATE FOR FLEXOGRAPHIC PRINTING USE WHICH IS PRODUCED FROM SAME
Document Type and Number:
WIPO Patent Application WO/2019/049786
Kind Code:
A1
Abstract:
Provided is a photosensitive resin composition for a flexographic printing original plate that is a low-hardness plate capable of being used in flexographic printing, is reduced in the adhesion of dust, dirt and paper dust onto a relief part formed therein, satisfies UV ink resistance and printing original plate long-term storage stability, and has high quality. The present invention is a water-developable photosensitive resin composition for flexographic printing use, which contains at least (a) polyamide and/or a polyamide block copolymer, (b) a crosslinking agent having at least one unsaturated group, (c) a photopolymerization initiator and (d) a fatty acid ester, the resin composition being characterized in that the fatty acid ester (d) is a fatty acid ester having at least two hydroxyl groups and 24 or 25 carbon atoms in the molecule thereof and is a fatty acid ester of a compound selected from fatty acids each having 12 to 22 carbon atoms, and also characterized in that the content of the fatty acid ester (d) in the photosensitive resin composition is 0.2 to 6% by weight.

Inventors:
KAWASHIMA WATARU (JP)
HASUIKE JUN (JP)
Application Number:
PCT/JP2018/032375
Publication Date:
March 14, 2019
Filing Date:
August 31, 2018
Export Citation:
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Assignee:
TOYO BOSEKI (JP)
International Classes:
G03F7/004; B41N1/12; G03F7/00; G03F7/037; G03F7/11
Domestic Patent References:
WO2017159199A12017-09-21
Foreign References:
JPS60191237A1985-09-28
JP2004514159A2004-05-13
JPH1078657A1998-03-24
JPH0519459A1993-01-29
JP2017005672W2017-02-16
JP2000206677A2000-07-28
JPH09288356A1997-11-04
JP2015074140W2015-08-27
Other References:
See also references of EP 3680715A4
Attorney, Agent or Firm:
KAZAHAYA, Nobuaki et al. (JP)
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