公开(公告)号：US20220276560A1

公开(公告)日：2022-09-01

申请号：US17748317

申请日：2022-05-19

Applicant: FUJIFILM Corporation

Inventor： Masato SHIRAKAWA ,  Taira MURAKAMI

IPC: G03F7/32 ,  G03F7/20

Abstract: An object of the present invention is to provide an aqueous developer for a flexographic printing plate, which has excellent concentration suitability and good storage stability in a case of being made into a concentrated solution, an aqueous developing concentrated solution for a flexographic printing plate, and a manufacturing method of a flexographic printing plate using these. The aqueous developer for a flexographic printing plate of the present invention is an aqueous developer for a flexographic printing plate including an anionic surfactant, a nonionic surfactant, and water, in which the anionic surfactant is a compound represented by Formula (1). R1—X1  (1) Here, in Formula (1), R1 represents an alkyl group having 3 to 20 carbon atoms, an alkenyl group having 3 to 20 carbon atoms, or an alkynyl group having 3 to 20 carbon atoms, which may have a substituent, and X1 represents a carboxylic acid group or a salt of the carboxylic acid group, a sulfonic acid group or a salt of the sulfonic acid group, a sulfate group or a salt of the sulfate group, or a phosphoric acid group or a salt of the phosphoric acid group.

公开(公告)号：US20220229365A1

公开(公告)日：2022-07-21

申请号：US17706006

申请日：2022-03-28

Applicant: FUJIFILM Corporation

Inventor： Akira SAKAGUCHI ,  Akinori FUJITA ,  Taira MURAKAMI

IPC: G03F7/004 ,  G03F7/029 ,  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 has an infrared absorber, a polymerization initiator, a polymerizable compound 1, a polymerizable compound 2, and a polymerizable compound 3, in which a molecular weight of the polymerizable compound 1 is less than 1,000, a weight-average molecular weight of the polymerizable compound 2 is 1,000 or more and 3,000 or less, and a weight-average molecular weight of the polymerizable compound 3 is more than 3,000 and 15,000 or less.

公开(公告)号：US20170123315A1

公开(公告)日：2017-05-04

申请号：US15407254

申请日：2017-01-17

Applicant: FUJIFILM CORPORATION

Inventor： Akio MIZUNO ,  Keisuke NOGOSHI ,  Kyosuke TSUMURA ,  Taira MURAKAMI ,  Kohei AIZU

IPC: G03F7/004 ,  G03F7/16 ,  B41M5/333 ,  G03F7/26 ,  C09B23/16 ,  B41C1/10 ,  G03F7/11 ,  G03F7/20

CPC classification number: G03F7/0045 ,  B41C1/1016 ,  B41C2201/02 ,  B41C2201/12 ,  B41C2210/04 ,  B41C2210/08 ,  B41M5/286 ,  B41M5/333 ,  B41M5/3333 ,  C09B23/00 ,  C09B23/0025 ,  C09B23/0066 ,  C09B23/086 ,  C09B23/164 ,  G03F7/11 ,  G03F7/16 ,  G03F7/168 ,  G03F7/20 ,  G03F7/26

Abstract: An object of the present invention is to provide a color developing composition which develops colors in a high density and does not significantly discolor when aged, a lithographic printing plate precursor which has excellent plate-inspecting properties by means of color development and is capable of maintaining strong color development even when aged after color development, a plate making method for a lithographic printing plate in which the lithographic printing plate precursor is used, and a new compound that can be preferably used as a color developer.The color developing composition of the present invention includes a compound represented by Formula 1. The compound in the present invention is represented by Formula 1. In Formula 1, R1 represents a group in which an R1—O bond is cleaved by heat or exposure to infrared rays.

公开(公告)号：US20200180299A1

公开(公告)日：2020-06-11

申请号：US16792900

申请日：2020-02-18

Applicant: FUJIFILM Corporation

Inventor： Kenjiro ARAKI ,  Shizuka ISHIKAWA ,  Taira MURAKAMI

IPC: B41F7/24 ,  B41N1/14 ,  B41C1/10

Abstract: Provided is a lithographic printing plate precursor having: a support; and an image-recording layer as an outermost surface layer on the support, in which the image-recording layer includes a hydrophilic polymer, an ion intensity derived from the hydrophilic polymer has a maximum value I1, the ion intensity being measured by a time-of-flight secondary ion mass spectrometry in such a manner that cutting is carried out from an image-recording layer surface in a direction of the support by an Ar gas cluster ion beam method, a ratio d0/d1 of a thickness d0 of the image-recording layer to a depth d1 from an outermost layer at which the I1 is obtained is 2.0 or more, and a ratio I1/I0 of the I1 to an ion intensity I0 derived from the hydrophilic polymer at a depth from the outermost layer of the d0 is 1.5 or more.

公开(公告)号：US20190329545A1

公开(公告)日：2019-10-31

申请号：US16409856

申请日：2019-05-12

Applicant: FUJIFILM CORPORATION

Inventor： Tadao SHIBAMOTO ,  Taira MURAKAMI ,  Kyosuke TSUMURA ,  Kotaro KUDO

IPC: B41C1/10

Abstract: A planographic printing plate precursor includes: a support; and an image recording layer which includes a radical initiator, a radical polymerizable component, and a radiation absorption compound, and in which the image recording layer shows two or more peaks of a radical generation amount in a radical generation amount-versus-time curve after exposure to image forming radiation, in which the radical initiator includes an electron-donating radical initiator and an electron-accepting radical initiator, and the radiation absorption compound comprises a compound represented by the following Formula 1.