Lithographic printing plate original and method for producing lithographic printing plate

A technology of lithographic printing plate and manufacturing method, which is applied in lithographic printing equipment, printing, printing process and other directions, can solve the problems of lack of image part, lack of brush resistance, etc., and achieve the effect of excellent ink adhesion

Inactive Publication Date: 2014-11-05
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, it has been found that if the stock solution of dampening water comes into contact with the image portion after the lithographic printing plate is produced, the image portion will be lost due to corrosion by chemicals, and there is no problem in printing durability at all.

Method used

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  • Lithographic printing plate original and method for producing lithographic printing plate
  • Lithographic printing plate original and method for producing lithographic printing plate
  • Lithographic printing plate original and method for producing lithographic printing plate

Examples

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Comparison scheme
Effect test

Embodiment

[0419] Hereinafter, an Example is given and the characteristics of this invention are demonstrated more concretely. Materials, usage amounts, ratios, processing contents, processing procedures and the like shown in the following examples can be appropriately changed unless departing from the spirit of the present invention. Therefore, the scope of the present invention should not be limitedly interpreted by the specific examples shown below. In the present examples, "parts" indicating the compounding amount mean "parts by weight" unless otherwise stated.

[0420] 1. Production of the original lithographic printing plate

[0421] On the following support 1 formed with polyvinylphosphonic acid as an undercoat layer, any one of the following photosensitive layers was formed, and further the following protective layer 1 was formed to prepare a lithographic printing plate precursor.

[0422]

[0423] An aluminum plate (material 1050, tempered H16) having a thickness of 0.24 mm ...

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Abstract

Provided are: a lithographic printing plate exhibiting excellent plate durability, chemical resistance, scratch resistance and impression properties while maintaining dirt resistance; and a method for producing the lithographic printing plate. A lithographic printing plate original having a support body and a photosensitive layer on the support body, wherein the photosensitive layer contains: (A) a polymerizable compound; (B) a polymerization initiator; (C) a polyvinyl acetal resin having one or more hydroxyl groups; (D) a cross-linking agent capable of cross-linking by reacting with a hydroxyl group and / or an acid group in the polyvinyl acetal; and (E) a (meth)acrylic resin.

Description

technical field [0001] The present invention relates to a so-called direct-to-plate lithographic printing plate precursor and a method for manufacturing a lithographic printing plate capable of direct plate making using various lasers based on digital signals from a computer, etc., and particularly to a lithographic printing plate precursor and a lithographic printing plate suitable for easy handling manufacturing method. Background technique [0002] Solid-state lasers, semiconductor lasers, and gas lasers that emit ultraviolet light, visible light, and infrared light with a wavelength of 300nm to 1200nm have become easy to obtain high-output and compact lasers. When these lasers are used as digital data such as computers for direct plate making The recording of light sources is very useful. Various researches have been carried out on recording materials sensitive to these various lasers. As a representative example, first, as a material capable of recording with an infrar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/033B41N1/14G03F7/00G03F7/004G03F7/027G03F7/11G03F7/32G03F7/38
CPCB41C2210/06G03F7/32B41C2210/08B41C2210/04B41C2210/24G03F7/00B41C2210/10G03F7/027G03F7/38B41C2201/02G03F7/033B41C1/1016B41N1/14B41C1/1008G03F7/11G03F7/004G03F7/038G03F7/0385G03F7/3035G03F7/032G03F7/092C08F216/38C08F220/10C08F222/10
Inventor 阿部纯也
Owner FUJIFILM CORP
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