公开(公告)号：US20180361772A1

公开(公告)日：2018-12-20

申请号：US16111186

申请日：2018-08-23

Applicant: FUJIFILM CORPORATION

Inventor： Genki TAKANASHI ,  Noriaki WATANABE

IPC: B41N1/08 ,  B41N3/03 ,  B41C1/10

Abstract: Provided are a planographic printing plate precursor for on-press development, including: an aluminum support; an interlayer which contains a compound containing a support absorptive group and a hydrophilic group; and an image recording layer which contains an infrared absorbing agent, a polymerization initiator, a polymerizable compound, and polymer particles formed of a styrene copolymer, on the aluminum support, in which the aluminum support is an aluminum plate having an anodized film on a surface in contact with the interlayer and the anodized film has micropores extending in a depth direction from a surface in contact with the interlayer, and an average pore diameter of the micropores in the surface of the anodized film is in a range of 20 to 40 nm; a method of preparing a planographic printing plate and a planographic printing method obtained by using the planographic printing plate precursor for on-press development.

公开(公告)号：US20140065538A1

公开(公告)日：2014-03-06

申请号：US14079034

申请日：2013-11-13

Applicant: FUJIFILM Corporation

Inventor： Yoshinori TAGUCHI ,  Noriaki WATANABE ,  Norio AOSHIMA

IPC: G03F7/09 ,  G03F7/12

CPC classification number: G03F7/091 ,  B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/262 ,  B41C2210/266 ,  G03F7/095 ,  G03F7/11 ,  G03F7/12 ,  G03F7/322

Abstract: A positive-working lithographic printing plate precursor for infrared laser is provided that includes, layered sequentially above a support, a lower layer and an upper layer, the lower layer and/or the upper layer including an infrared absorbing agent, either the lower layer comprising an alkali-soluble group-containing graft copolymer or the upper layer comprising a sulfonamide group-, active imide group-, and/or amide group-containing graft copolymer, and the graft copolymer being a polyurethane resin having as a graft chain an ethylenically unsaturated monomer-derived constitutional unit. There is also provided a process for making a lithographic printing plate, the process including in sequence an exposure step of imagewise exposing by means of an infrared laser the positive-working lithographic printing plate precursor for infrared laser and a development step of developing using an aqueous alkali solution with a pH of 8.5 to 10.8.

Abstract translation: 提供一种用于红外激光的正性平版印刷版原版，其包括在支撑体，下层和上层之上顺序层叠，下层和/或上层包括红外线吸收剂，下层包含 含有碱溶性基团的接枝共聚物或含有磺酰胺基，活性酰亚胺基和/或酰胺基的接枝共聚物的上层，所述接枝共聚物是具有作为接枝链的烯属不饱和基团的聚氨酯树脂 单体衍生的结构单元。 还提供了一种制备平版印刷版的方法，该方法依次包括通过红外激光成像曝光的曝光步骤，用于红外激光的正性平版印刷版原版和使用水性显影的显影步骤 pH为8.5〜10.8的碱溶液。