IMAGEABLE COATING, THERMAL NEGATIVE-WORKING LITHOGRAPHY PRINTING PLATE, AND PLATEMAKING METHOD THEREFOR

Title:

IMAGEABLE COATING, THERMAL NEGATIVE-WORKING LITHOGRAPHY PRINTING PLATE, AND PLATEMAKING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2018/033115

Kind Code:

A1

Abstract:

An imageable coating, a thermal negative-working lithography printing plate, and a platemaking method therefor. The imageable coating comprises the following constituents in parts by weight: a radically polymerizable compound 20-60 parts, a radiation-absorbing compound 0.5-12 parts, a free radical initiator 1-25 parts, a binding agent 10-70 parts, and a development accelerator 0.5-15 parts. The platemaking method comprises the following steps: S1, manufacturing a printing plate precursor, the printing plate precursor comprising a substrate having a hydrophilic surface or being provided with a hydrophilic layer and the imageable coating covering the substrate; S2, patternedly exposing the printing plate precursor, thus forming an exposed area and an unexposed area; and S3, removing the unexposed area via a development process. The employment of the imageable coating and the plate making method allows the implementation of a flexible development process of "in-unit development" or "off-unit development" and produces a printing plate provided with great printing performance.

Inventors:

TAO TING (CN)
YUNG NGANHAU (CN)
YING ZUOTING (CN)
HUANG YING (CN)
GAO MIAO (CN)
XU NENGPING (CN)
LIU CHONGSHUANG (CN)

Application Number:

PCT/CN2017/097860

Publication Date:

February 22, 2018

Filing Date:

August 17, 2017

Export Citation:

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Assignee:

ZHEJIANG KONITA NEW MAT CO LTD (CN)

International Classes:

B41C1/10

Foreign References:

CN105612057A	2016-05-25
CN101305324A	2008-11-12
CN106313870A	2017-01-11
CN103797421A	2014-05-14
CN101322075A	2008-12-10
EP1788450B1	2009-02-04
EP2753981B1	2015-10-14

Other References: