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1.发明公开
公开(公告)号：EP4270107A1
公开(公告)日：2023-11-01
申请号：EP21910854.5
申请日：2021-12-22
申请人： FUJIFILM Corporation
发明人： WATANABE, Kazuki
摘要： An object of the present invention is to provide a flexographic printing plate precursor in which a sensitivity of a heat-sensitive image forming layer is high and occurrence of white spots in a line drawing can be suppressed in a case of being used for a flexographic printing plate, and a manufacturing method of a flexographic printing plate using the same. The flexographic printing plate precursor of the present invention is a flexographic printing plate precursor including, in the following order, a support, a photosensitive resin layer, a barrier layer, and a heat-sensitive image forming layer, in which the barrier layer contains a first infrared absorbing dye, the heat-sensitive image forming layer contains an ultraviolet absorber and a second infrared absorbing dye, and in the barrier layer, a content of a compound having substantially no absorption in a wavelength range of 900 to 1200 nm and having an absorption in a wavelength range of 300 to 400 nm is 0% by mass or more and less than 0.1% by mass with respect to a mass of the barrier layer.
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公开(公告)号：EP3991987A1
公开(公告)日：2022-05-04
申请号：EP20831892.3
申请日：2020-06-26
申请人： FUJIFILM Corporation
摘要： Provided is an on-press development type lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains a compound A that has a partial structure satisfying 8d ≥ 15.5 wherein 8d is a value of a dispersion element in the Hansen solubility parameters, and a content of the partial structure satisfying δd ≥ 15.5 in the compound A is 50% by mass or more with respect to a total mass of the compound. Also provided is a method of preparing lithographic printing plate or a lithographic printing method using the lithographic printing plate precursor.
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