Title:
FLEXOGRAPHIC PRINTING PLATE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2022/181418
Kind Code:
A1
Abstract:
The present invention provides a flexographic printing plate production method for achieving both desired recess depth and reproducibility of independent dots by increasing a hardened area around the respective independent dots and resolving the problem of insufficient depth of the recesses. This flexographic printing plate production method comprises: an exposure step for subjecting a flexographic original plate, which is at least sequentially equipped with a support, a photosensitive layer, and a mask portion having an image formed thereon, to irradiation with energy rays via the mask portion to expose the photosensitive layer; and a development step for removing unexposed portions of the photosensitive layer. The exposure step comprises a step for performing irradiation with energy rays in a state in which the mask portion and a film-like optical element are located, in this sequence from the photosensitive layer side, between an energy ray source and the photosensitive layer. The film-like optical element is an element that converges incoming energy rays to enhance directivity of the energy rays and emits the energy rays onto the mask portion.
Inventors:
KANO KENJI (JP)
Application Number:
PCT/JP2022/006155
Publication Date:
September 01, 2022
Filing Date:
February 16, 2022
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
B41C1/00; G03F1/88; G03F7/20
Foreign References:
| JP2010040831A | 2010-02-18 | |||
| JP2012055262A | 2012-03-22 | |||
| JP2001154181A | 2001-06-08 | |||
| JPH0273230A | 1990-03-13 | |||
| JPH0664050A | 1994-03-08 | |||
| JP2007501951A | 2007-02-01 |
Attorney, Agent or Firm:
ITOH Hideaki et al. (JP)
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