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Resin composition for laser engraving, relief printing plate precursor for laser engraving, process for producing relief printing plate and relief printing plate

一种树脂组合物、激光雕刻的技术，应用在凸版印刷版领域，能够解决画质下降、雕刻形状(边缘形状不良、难以去除胶粘性渣滓等问题

Inactive Publication Date: 2012-01-11
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The method described in Japanese Patent Application Laid-Open No. 2004-174758 has the problem of poor engraving shape (edge ​​shape) due to the inclusion of particles, resulting in a decrease in image quality
In addition, the method described in Japanese Patent Application Laid-Open No. 2009-262370 has the problem of flushability, and the method described in International Publication No. 2005 / 070691 pamphlet uses organic solvents to remove adhesive residues, while using water systems with excellent environmental adaptability Difficult to remove sticky residue

Method used

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  • Resin composition for laser engraving, relief printing plate precursor for laser engraving, process for producing relief printing plate and relief printing plate
  • Resin composition for laser engraving, relief printing plate precursor for laser engraving, process for producing relief printing plate and relief printing plate
  • Resin composition for laser engraving, relief printing plate precursor for laser engraving, process for producing relief printing plate and relief printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0356] 1. Preparation of resin composition for laser engraving

[0357] In a three-necked flask with a stirring blade and a condenser, 40 parts of Denka Butyral #3000-2 (polyvinyl butyral, manufactured by Denka Kogyo Co., Ltd.) as (component C) binder polymer, and ( Component F) 0.75 parts of Ketjenblack EC600JD (F-1) (manufactured by Lion Co., Ltd.) as a photothermal conversion agent, 20 parts of RS-540 (manufactured by ADEKA Co., Ltd.) as a plasticizer, and propylene glycol monomethyl ether acetic acid as a solvent 47 parts of ester were heated at 70° C. for 2 hours while stirring to dissolve the polymer. A-1 (manufactured by Wako Pure Chemical Industries, Ltd., 10.9 parts) as (component A) a compound having at least 2 mercapto groups, and B-4 (Tokyo Chemical Industry Co., Ltd.) as (component B) ethylenically unsaturated compound were added. Co., Ltd., 9.1 parts; component A and component B are equimolar in terms of molar ratio), (component D) silane compound D-1 (KBE-846, ...

Embodiment 2～41、 comparative example 1 and 2

[0363] In Examples 2 to 41 and Comparative Examples 1 and 2, Component A, Component B, Component C, Component D, Component E, and Component F were combined as shown in Table 1, and the same procedure as in Example 1 was performed, A resin composition for laser engraving is prepared, followed by forming a crosslinked relief-forming layer.

[0364] In addition, component A and component B were compounded so that the molar ratios of the mercapto groups and ethylenically unsaturated groups as the respective functional groups were the molar ratios shown in Table 1, and their The total weight is 20 parts. Component C, component D, component E, and component F are the same parts by weight as in Example 1.

[0365] In addition, the compound used as component A is selected from the said exemplified compound.

[0366] The compound used as component B is selected from the above-mentioned Exemplary Compounds B-1 to 22.

[0367] As component C, the following compounds were used.

[036...

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Abstract

There are provided a resin composition for laser engraving that can give a relief printing plate having excellent hardness, film elasticity, printing durability, and aqueous ink transfer properties and that has excellent rinsing properties for engraving residue generated when laser-engraving a printing plate and excellent engraving sensitivity in laser engraving, a relief printing plate precursor employing the resin composition for laser engraving, a process for producing a relief printing plate employing the same, and a relief printing plate obtained thereby.

Description

technical field [0001] The present invention relates to a resin composition for laser engraving, a relief printing plate precursor for laser engraving, a plate making method for a relief printing plate, and a relief printing plate. Background technique [0002] Conventionally, a hydrophobic laser-engraved printing plate using natural rubber, synthetic rubber, thermoplastic elastomer, etc. has been used (Japanese Patent Application Laid-Open No. 11-338139). As a technique for improving the washability of engraving residues produced by laser engraving, a technique has been proposed in which porous inorganic fine particles are contained in the relief-forming layer and liquid residues are adsorbed on the particles to improve removability (Japan Japanese Patent Laid-Open No. 2004-174758). In addition, a laser-engravable photosensitive resin composition containing a binder polymer and a polyfunctional thiol compound and having a non-sticky surface has been proposed (JP-A-2009-262...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/00G03F7/075B41C1/05B41N1/12
CPCG03F7/0755B41N1/12B41C1/05G03F7/0275Y10T428/24479
Inventor 吉田健太
Owner FUJIFILM CORP
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