公开(公告)号：US20210001618A1

公开(公告)日：2021-01-07

申请号：US17029188

申请日：2020-09-23

Applicant: FUJIFILM Corporation

Inventor： Yusuke IKEYAMA ,  Nobuyuki SONE ,  Yusuke NAMBA ,  Atsushi OSHIMA

IPC: B41C1/10 ,  B41N1/14

Abstract: Provided are a planographic printing plate precursor and a method of producing a planographic printing plate precursor, in which an image forming region during printing on newspaper page is ensured and edge stains are eliminated. Provided are a planographic printing plate precursor (10b) including an aluminum support (12) which has an anodized film (14), and an image recording layer (16) on the aluminum support (12), in which an end portion of the planographic printing plate precursor (10b) has a sagging shape having a sagging amount (X) of 25 μm to 150 μm and a sagging width (Y) of 70 μm to 300 μm, the image recording layer (16) contains an infrared absorbing agent, and a part or an entire side surface of two sides of the aluminum support (12), the two sides having the sagging shape and opposing each other contains an ink repellent agent (44); and a method of producing the planographic printing plate precursor (10b).

公开(公告)号：US20150114243A1

公开(公告)日：2015-04-30

申请号：US14591169

申请日：2015-01-07

Applicant: FUJIFILM CORPORATION

Inventor： Yusuke NAMBA

IPC: B41C1/10 ,  B41N1/20 ,  B41N1/22 ,  B41C1/18

CPC classification number: B41C1/1008 ,  B41C1/05 ,  B41C1/18 ,  B41N1/20 ,  B41N1/22

Abstract: A cylindrical printing plate precursor of the present invention comprising a cured resin sheet formed into a cylindrical shape, the cylindrical printing plate precursor comprising an overlap margin part comprising opposite end parts of the cured resin sheet superimposed on one another, each end part of the cured resin sheet in the overlap margin part having a thickness that is smaller than the thickness of the cured resin sheet other than in the overlap margin part, and a joining part, in the overlap margin part, in which a hole providing communication between the opposite end parts of the cured resin sheet is filled with a cured resin, the overlap margin part having a specific width, the joining part having a specific size, and the joining part having a specific cross-sectional area in the plate surface direction.

Abstract translation: 本发明的圆筒形印版前体包含形成为圆筒形状的固化树脂片，所述圆柱形印版前体包括重叠边缘部分，该重叠边缘部分包括彼此重叠的固化树脂片的相对端部，固化的 重叠边缘部分中的树脂片的厚度小于重叠边缘部分以外的固化树脂片的厚度;以及接合部，在重叠间隔部分中，在相对端之间提供连通的孔 固化树脂片的部分填充有固化树脂，重叠边缘部分具有特定宽度，接合部分具有特定尺寸，并且接合部分在板表面方向上具有特定的横截面积。

公开(公告)号：US20230127702A1

公开(公告)日：2023-04-27

申请号：US18059256

申请日：2022-11-28

Applicant: FUJIFILM Corporation

Inventor： Kazuaki ENOMOTO ,  Akira YAMAMOTO ,  Yusuke NAMBA ,  Keisuke NOGOSHI

IPC: B41C1/10 ,  G03F7/031 ,  G03F7/029 ,  G03F7/033 ,  G03F7/004

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-accepting polymerization initiator, and a polymerizable compound, LUMO of the electron-accepting polymerization initiator-LUMO of the infrared absorber is 0.45 eV or more, and the outermost layer contains a discoloring compound. Also provided is 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.

公开(公告)号：US20220219478A1

公开(公告)日：2022-07-14

申请号：US17703414

申请日：2022-03-24

Applicant: FUJIFILM Corporation

Inventor： Yusuke NAMBA ,  Akinori FUJITA

IPC: B41N1/14 ,  B41M1/06 ,  C08F220/28

Abstract: Provided is a lithographic printing plate recursor having a support and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymer A that has a weight-average molecular weight of more than 15,000 and 150,000 or less, and a polymerizable compound B that has a weight-average molecular weight of 1,000 or more and 15,000 or less, and the polymer A is a polymer represented by Formula (I). AP-(BP)nP  Formula (I) In Formula (I), AP represents an nP-valent organic group having a hydrogen bonding group, BP represents a group having 2 or more Polymerizable groups, nP represents an integer of 2 or more, and weight-average molecular weight of AP/(molecular weight of BP×nP) is 1 or less.

公开(公告)号：US20220212460A1

公开(公告)日：2022-07-07

申请号：US17703365

申请日：2022-03-24

Applicant: FUJIFILM Corporation

Inventor： Yusuke NAMBA ,  Akinori FUJITA

IPC: B41C1/10

Abstract: Provided is a lithographic printing plate precursor having a support and an image-recording layer on the support, in which the image-recording layer contains an infrared absorber, a polymerization initiator, and a polymer A, a weight-average molecular weight of the polymer A is more than 15,000 and 150,000 or less, and an ethylenically unsaturated bond valence of the polymer A is 3.0 mmol/g or more.

公开(公告)号：US20180186161A1

公开(公告)日：2018-07-05

申请号：US15904894

申请日：2018-02-26

Applicant: FUJIFILM Corporation

Inventor： Seiichiro MORIKAWA ,  Yusuke NAMBA

IPC: B41N1/12 ,  B41C1/05

CPC classification number: B41N1/12 ,  B41C1/05 ,  B41C1/18 ,  B41M1/04 ,  B41N1/16 ,  B41N1/22 ,  B41P2200/12 ,  G03F7/00

Abstract: An object of the present invention is to provide a flexographic printing plate having excellent ink transferability in a solid portion and the like and having good printing quality in a halftone portion. The flexographic printing plate of the present invention is a flexographic printing plate having a relief layer including a non-image area and an image area, in which the image area has a halftone dot portion having a halftone dot area ratio of more than 0% and less than 100%, and a solid portion having a halftone dot area ratio of 100%, small dots in the halftone dot portion and the solid portion or small dots in the halftone dot portion have two or more recessed portions having different depths according to a halftone dot area ratio, and the two or more recessed portions having different depths are recessed portions whose depth becomes deeper as the halftone dot area ratio increases.

公开(公告)号：US20170348993A1

公开(公告)日：2017-12-07

申请号：US15686468

申请日：2017-08-25

Applicant: Fujifilm Corporation

Inventor： Yusuke NAMBA ,  Seiichiro MORIKAWA ,  Masato SHIRAKAWA

IPC: B41N1/12 ,  B41C1/05 ,  B41M1/04

CPC classification number: B41N1/12 ,  B41C1/05 ,  B41M1/04 ,  B41P2200/12

Abstract: The present invention is to provide a flexographic printing plate having excellent ink uniformity in an image area, particularly, in a solid portion regardless of a printing speed, a method for manufacturing the flexographic printing plate, and a flexographic printing plate precursor used in the manufacturing of the flexographic printing plate. The flexographic printing plate of the present invention is a flexographic printing plate having a relief layer provided with a non-image area, and an image area having an uneven structure formed on the surface, in which a concave portion constituting the uneven structure is formed of at least one of a plurality of grooves having a fixed width extending in one direction or a plurality of hole groups constituted of a plurality of bottomed holes having the same diameter scattered in the one direction, a depth of the concave portion is 2 to 20 μm, each of the plurality of grooves and the plurality of hole groups is arranged in an orthogonal direction orthogonal to the one direction, and the grooves and the bottomed holes respectively have two or more kinds of widths and diameters.

公开(公告)号：US20140326151A1

公开(公告)日：2014-11-06

申请号：US14331727

申请日：2014-07-15

Applicant: FUJIFILM Corporation

Inventor： Yusuke NAMBA ,  Keio OKANO ,  Shinya KUROKAWA ,  Hirokazu SAWADA

IPC: B41N1/08 ,  C25D7/00 ,  B41N3/03 ,  C25D11/12

CPC classification number: B41N1/083 ,  B41N3/034 ,  C25D7/00 ,  C25D11/005 ,  C25D11/12 ,  C25D11/18 ,  G03F7/09

Abstract: The present invention provides a lithographic printing plate support, comprising an aluminum plate and an anodized film of aluminum formed on the aluminum plate and having micropores extending in the anodized film from a surface of the anodized film opposite from the aluminum plate in a depth direction, wherein each of the micropores has a large-diameter portion having a specific shape and a small-diameter portion having a specific shape and communicating with a bottom of the large-diameter portion; at least a part of an inside of the small-diameter portion is sealed with protrusions made of boehmite; and a ratio of an average height of protrusions made of boehmite inside the large-diameter portion to an average diameter of the large-diameter portion at the surface of the anodized film is up to a predetermined value.

Abstract translation: 本发明提供一种平版印刷版支撑体，其包括在铝板上形成的铝板和阳极氧化膜，并且在阳极氧化膜上从阳极氧化膜的与铝板相反的表面在深度方向上延伸的微孔， 其中每个微孔具有特定形状的大直径部分和具有特定形状并与大直径部分的底部连通的小直径部分; 小直径部分的内部的至少一部分由勃姆石制成的突起密封; 大直径部分内由勃姆石构成的突起的平均高度与阳极氧化膜表面的大直径部分的平均直径的比率达到预定值。