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Relief printing plate precursor for laser engraving, relief printing plate, and method of manufacturing relief printing plate

A technology of laser engraving and printing plate, applied in the preparation of printing surface, printing, printing process, etc., to achieve the effect of high engraving sensitivity

Inactive Publication Date: 2009-10-07
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the case of letterpress printing plates produced by analog platemaking, the platemaking process requires time and cost for the manufacture of original image films since an original image film of silver salt material is usually required

Method used

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  • Relief printing plate precursor for laser engraving, relief printing plate, and method of manufacturing relief printing plate
  • Relief printing plate precursor for laser engraving, relief printing plate, and method of manufacturing relief printing plate
  • Relief printing plate precursor for laser engraving, relief printing plate, and method of manufacturing relief printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

1. Preparation of crosslinkable resin composition for laser engraving

In a three-necked flask equipped with a stirring blade and a cooling tube, 50 parts by mass of polyvinyl butyral (trade name: BL-1, manufactured by Sekisui Chemical Co., Ltd.) as the specific polymer (A) was charged. , Mw: 19,000), 1 part by mass of carbon black (trade name: KETJENBLACK EC600JD, manufactured by Lion Corporation) as a light-to-heat conversion agent (E), 20 parts by mass of diethylene glycol as a plasticizer, and 47 parts by mass of ethanol, and heated at 70° C. for 120 min while stirring to dissolve the specific polymer (A). Further, the resultant was cooled to 40° C., and 15 parts by mass of ethylenically unsaturated monomer M-1 having the structure shown below, 13 parts by mass of hydroxyethyl (meth)acrylate (trade name; BLEMMER PME200 , manufactured by NOF Corp.) and 1 mass part of tert-butyl peroxybenzoate (t-butyloxybenzoate) (trade name: PERBUTYLZ, manufactured by NOF Corp.) as a polym...

Embodiment 2 to 17 and comparative example 1 to 8

1. Preparation of crosslinkable resin composition for laser engraving

Coating solutions (crosslinkable resin compositions for laser engraving) of Examples 2 to 17 and Comparative Examples 1 to 8 for forming a crosslinkable relief-forming layer were prepared in the same manner as in Example 1, respectively, with different The point is that, as shown in Tables 4 and 5 below, Specific Polymers 2 to 14 and Comparative Polymers C-1 to C-6 were used instead of BL-1 (as described above) as Specific Polymer (A), respectively. , and the polymerizable compound (C), polymerization initiator (D) and light-to-heat conversion agent (E) were changed as shown in the following Tables 4 and 5, respectively.

[0327] Details of the specific polymer (A) and the comparative binder polymer used in Examples and Comparative Examples are as follows.

Specific polymer 2: polyvinyl butyral (Mw: 66000) (trade name: BH-S, manufactured by Sekisui Chemical Co., Ltd.)

Specific polymer 3: polyvinyl butyral (...

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Abstract

The invention provides a relief printing plate precursor for laser engraving, comprising a relief forming layer, the relief forming layer comprising a resin composition for laser engraving, and the resin composition for laser engraving comprising a binder polymer (A) that is insoluble in water and soluble in an alcohol having 1 to 4 carbon atoms. The invention further provides a method for manufacturing a relief printing plate having crosslinking components of the relief forming layer and laser engraving the relief forming layer, and a relief printing plate formed thereby.

Description

Technical field [0001] The invention relates to a relief printing plate precursor for laser engraving, a relief printing plate and a method for manufacturing the relief printing plate. Background technology [0002] As a method of forming a printing plate by forming a concavo-convex structure on a photosensitive resin layer laminated on the surface of a support, it is known that a relief-forming layer formed using a photosensitive composition is exposed to ultraviolet radiation via an original image film to be selectively cured The image area, and the method of removing the uncured part with a developer solution, that is, the so-called "analog plate making". [0003] A relief printing plate is a letterpress printing plate having a relief layer having a concavo-convex structure, and such a relief layer having a concavo-convex structure can be obtained by patterning a relief-forming layer composed of a photosensitive combination The photosensitive composition contains as a ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N1/12B41N3/03B41C1/05C08J3/09
CPCB41N1/12B41C1/05
Inventor 菅崎敦司今井真佐子
Owner FUJIFILM CORP
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