Title:
FLEXOGRAPHIC PRINTING ORIGINAL PLATE, METHOD FOR MANUFACTURING FLEXOGRAPHIC PRINTING ORIGINAL PLATE, FLEXOGRAPHIC PRINTING PLATE, AND FLEXOGRAPHIC PRINTING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/223917
Kind Code:
A1
Abstract:
Provided is a flexographic printing original plate in which at least a support (a) and a photosensitive resin composition layer (b) are laminated, wherein the photosensitive resin composition layer (b) contains a naphthenic hydrocarbon compound having a naphthene content of 60-80%, and below is satisfied. A cured product, obtained by molding a photosensitive resin composition, which constitutes the photosensitive resin composition layer (b), to a thickness of 1.5 mm and irradiating the top and bottom surfaces of the molded product with 3000 mJ of ultraviolet rays, has a Shore A hardness of 60-75, and the cured product has a storage modulus G' (MPa) and a loss modulus G" (MPa) satisfying expressions (1) and (2) below, as obtained by dynamic viscoelasticity measurement at -30°C and 2.5 Hz. (1): 1.04≤G'+G"≤1.79 (2): 0.15≤G"≤0.30
Inventors:
SUEZAKI MASAHIRO (JP)
NAKANO KATSUYA (JP)
NAKANO KATSUYA (JP)
Application Number:
PCT/JP2023/017605
Publication Date:
November 23, 2023
Filing Date:
May 10, 2023
Export Citation:
Assignee:
ASAHI CHEMICAL IND (JP)
International Classes:
B41N1/12; B41C1/05; B41M1/04; G03F7/00; G03F7/095
Domestic Patent References:
| WO2007058163A1 | 2007-05-24 |
Foreign References:
| JP2019171730A | 2019-10-10 | |||
| JP2019109444A | 2019-07-04 | |||
| JP2019109436A | 2019-07-04 | |||
| JP2017114024A | 2017-06-29 | |||
| JP2013111903A | 2013-06-10 | |||
| JPH05134425A | 1993-05-28 | |||
| US20200009787A1 | 2020-01-09 |
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
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