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公开(公告)号：US20240359500A1
公开(公告)日：2024-10-31
申请号：US18764457
申请日：2024-07-05
Applicant: FUJIFILM Corporation
Inventor： Yusuke NAMBA
CPC classification number: B41N3/08 , B41C1/1008 , G03F7/038 , G03F7/30 , B41C2210/04 , B41C2210/08 , B41C2210/262
Abstract: An on-press development type lithographic printing plate precursor includes a support and an image-recording layer on the support. The image-recording layer contains a polymerization initiator, an infrared absorber, a color forming substance precursor, and an auxiliary capable of donating an electron to the infrared absorber. A polymer having an ethylenically unsaturated group and a water-soluble monofunctional monomer are present on a surface of the support on an image-recording layer side, a layer in contact with the support on the image-recording layer side contains the polymer having an ethylenically unsaturated group and the water-soluble monofunctional monomer, or a layer in contact with the support on the image-recording layer side, other than the image-recording layer, contains the polymer having an ethylenically unsaturated group and the image-recording layer contains the water-soluble monofunctional monomer.
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2.发明申请
公开(公告)号：US20170087915A1
公开(公告)日：2017-03-30
申请号：US15374852
申请日：2016-12-09
Applicant: FUJIFILM CORPORATION
Inventor： Yusuke NAMBA
Abstract: An object of the present invention is to provide a flexographic printing plate precursor for laser engraving which makes it possible to obtain a flexographic printing plate having excellent solid quality and a wide printing pressure latitude and a flexographic printing plate which is obtained by laser-engraving the flexographic printing plate precursor for laser engraving. A flexographic printing plate precursor for laser engraving of the present invention includes a first resin layer, a second resin layer, and a support in this order, in which a thickness of the first resin layer is equal to or less than 0.03 mm, and a ratio of a dynamic hardness of the first resin layer to a dynamic hardness of the second resin layer is equal to or less than 0.9.
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公开(公告)号：US20230400771A1
公开(公告)日：2023-12-14
申请号：US18359391
申请日：2023-07-26
Applicant: FUJIFILM Corporation
Inventor： Kazuaki ENOMOTO , Yusuke NAMBA , Keisuke NOGOSHI
CPC classification number: G03F7/11 , B41C1/1075 , B41F5/00 , G03F7/029
Abstract: Provided are: an on-press development type planographic printing plate precursor having a support, an image-recording layer, and an overcoat layer in this order, in which a content of an inorganic compound in the overcoat layer is zero or is more than 0% by mass or less than 1% by mass with respect to a total mass of the overcoat layer, and the image-recording layer contains an infrared absorber, a polymerization initiator, a polymerizable compound, and an oil agent; and a method of preparing a planographic printing plate and a planographic printing method in which the on-press development type planographic printing plate precursor is used.
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公开(公告)号：US20210356865A1
公开(公告)日：2021-11-18
申请号：US17386174
申请日：2021-07-27
Applicant: FUJIFILM Corporation
Inventor： Yusuke NAMBA , Kazuhiro Fujimaki , Taira Murakami
IPC: G03F7/033 , C08F236/06 , B41N1/12
Abstract: An object of the present invention is to provide a water-developable flexographic printing plate precursor which has excellent water developability and exhibits excellent printing durability in a case of being made into a flexographic printing plate, a flexographic printing plate, and a photosensitive resin composition. The water-developable flexographic printing plate precursor of the present invention includes a photosensitive layer, in which the photosensitive layer contains a monomer, a polymerization initiator, a base polymer, and water-dispersible particles, the water-dispersible particles have carbon-carbon double bonds, and an amount of the carbon-carbon double bonds on a surface of the water-dispersible particles is 21 or less.
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5.发明申请
公开(公告)号：US20200166846A1
公开(公告)日：2020-05-28
申请号：US16778806
申请日：2020-01-31
Applicant: FUJIFILM Corporation
Inventor： Yusuke NAMBA , Yoshiki MORITA
Abstract: An on-press development type lithographic printing plate precursor including an aluminum support having an anodized film and an image-recording layer provided on the support, a shear droop shape in which an amount X of shear droop is from 25 to 150 μm and a width Y of shear droop is from 70 to 300 μm is provided on an edge portion of the lithographic printing plate precursor, and an area ratio of cracks present on a surface of the anodized film in a region corresponding to the width of shear droop Y of the lithographic printing plate precursor is 30% or less, and a method for producing a lithographic printing plate using the on-press development type lithographic printing plate precursor are provided.
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公开(公告)号：US20180339536A1
公开(公告)日：2018-11-29
申请号：US16045892
申请日：2018-07-26
Applicant: FUJIFILM Corporation
Inventor： Masato SHIRAKAWA , Yusuke NAMBA
Abstract: Provided is to provide a cylindrical printing plate with which printing of excellent solid density and high halftone dot quality is made possible, and further print medium followability and printing durability are excellent, a cylindrical printing plate precursor, a method for manufacturing a cylindrical printing plate precursor, and a method for manufacturing a cylindrical printing plate. A cylindrical printing plate includes a relief layer having a first hard layer, a soft layer, and a second hard layer in this order from a printing surface side, in which a hardness K1 of the first hard layer is 10 MPa or more and less than 20 MPa, a ratio K1/K2 of the hardness K1 of the first hard layer with respect to a hardness K2 of the soft layer is 2.7 or more, a ratio K3/K2 of a hardness K3 of the second hard layer with respect to the hardness K2 of the soft layer is 1.2 or more, a thickness of the first hard layer is 0.05 mm or more and 0.3 mm or less, and a thickness of the soft layer is 0.3 mm or more and 2.0 mm or less.
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公开(公告)号：US20160221379A1
公开(公告)日：2016-08-04
申请号：US15091663
申请日：2016-04-06
Applicant: FUJIFILM Corporation
Inventor： Yusuke NAMBA , Seiichiro MORIKAWA , Hiroshi TASHIRO
IPC: B41N1/12
Abstract: Provided is a flexo printing plate which enables printing that inhibits the occurrence of voids in the rear end portion of an image portion while preventing decrease in solid density and prevents discontinuity of density from becoming visible. The flexo printing plate has one or more image portions, and in at least one of the image portions, a plurality of depressions having a predetermined width measured from the edge is formed. The depressions have a depth of 2 μm to 9 μm, and an area ratio of the depressions in the end region is a maximum at the edge side and a minimum at the central side of the image portion.
Abstract translation: 提供了一种柔性版印刷版，其能够抑制图像部分的后端部分中的空隙的发生，同时防止固体密度的降低并且防止密度的不连续性变得可见。 柔版印刷版具有一个或多个图像部分，并且在至少一个图像部分中形成从边缘测量的具有预定宽度的多个凹陷。 凹陷的深度为2μm〜9μm，端部区域的凹部的面积比在边缘侧为最大值，图像部的中央侧的面积比为最小。
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公开(公告)号：US20240278550A1
公开(公告)日：2024-08-22
申请号：US18582657
申请日：2024-02-21
Applicant: FUJIFILM CORPORATION
Inventor： Yusuke NAMBA , Shumpei WATANABE
IPC: B41C1/10
CPC classification number: B41C1/1016 , B41C2201/02 , B41C2201/06 , B41C2210/22
Abstract: A stack including: a lithographic printing plate precursor including an image-recording layer which contains an infrared absorber, a polymerizable compound, and a polymerization initiator; and an interleaving paper stacked on the lithographic printing plate precursor, in which air permeation resistance of the interleaving paper is 55 seconds or more, or a stack including: a lithographic printing plate precursor including an image-recording layer which contains an infrared absorber, a polymerizable compound, and a polymerization initiator; and an interleaving paper stacked on the lithographic printing plate precursor, in which the interleaving paper is overlapped with the lithographic printing plate precursor to be in contact with a surface of the lithographic printing plate precursor on an image-recording layer side, and a color difference ΔE of the image-recording layer before and after storage in a dark room in an environment of 25° C. and 55% RH for 3 days is less than 3.0.
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公开(公告)号：US20230219336A1
公开(公告)日：2023-07-13
申请号：US18059304
申请日：2022-11-28
Applicant: FUJIFILM Corporation
Inventor： Kazuaki ENOMOTO , Akira YAMAMOTO , Yusuke NAMBA , Keisuke NOGOSHI
IPC: B41C1/10
CPC classification number: B41C1/1016 , B41C2201/02 , B41C2201/14 , B41C2210/02 , B41C2210/22 , B41C2210/24
Abstract: Provided is an on-press development type lithographic printing plate precursor having a support, an image-recording layer, and an outermost layer in this order, in which the image-recording layer contains an infrared absorber, an electron-donating polymerization initiator, and a polymerizable compound, HOMO of the infrared absorber - HOMO of the electron-donating polymerization initiator is 0.60 eV or less, and the outermost layer contains a discoloring compound. Also provided are a method of preparing a lithographic printing plate and a lithographic printing method in which the on-press development type lithographic printing plate precursor is used.
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公开(公告)号：US20220339952A1
公开(公告)日：2022-10-27
申请号：US17849143
申请日：2022-06-24
Applicant: FUJIFILM Corporation
Inventor： Yusuke NAMBA , Atsushi MATSUURA , Akira SAKAGUCHI
IPC: B41M1/06
Abstract: Provided is a lithographic printing method including a preparing step of preparing a lithographic printing plate precursor which includes an aluminum support, and an image recording layer containing an acid color developing agent and an acid generator on the aluminum support, an exposing step of exposing the lithographic printing plate precursor, a developing step of supplying acidic dampening water to the exposed lithographic printing plate precursor and removing a non-image area of the image recording layer, and a printing step, in which the aluminum support includes an anodized aluminum film, the anodized film has micropores, and a value ΔS is 15% or greater and 60% or less.
