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Lithographic printing original plate, layered body of lithographic printing original plates, and method for producing lithographic printing plate

A technology of lithographic printing plates and laminates, which is applied in printing, printing process, printing plates, etc., can solve the problems of rising costs, poor peeling of backing paper, etc., and achieve the effect of excellent scratch resistance

Inactive Publication Date: 2021-06-11
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of the liner itself involves problems such as cost increase and disposal, and it needs to be removed before the exposure process, so it becomes a load on the plate making process, and there is a risk of poor liner peeling failures

Method used

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  • Lithographic printing original plate, layered body of lithographic printing original plates, and method for producing lithographic printing plate
  • Lithographic printing original plate, layered body of lithographic printing original plates, and method for producing lithographic printing plate
  • Lithographic printing original plate, layered body of lithographic printing original plates, and method for producing lithographic printing plate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～ Embodiment 30 and comparative example 1 and comparative example 2

[0505]

[0506] The support body was manufactured by the method similar to paragraph 0224-0297 of international publication 2015 / 152209. This support was used in all Examples and Comparative Examples.

[0507]

[0508] 〔Binder Polymer P1-1〕

[0509] The binder polymer P1-1 was synthesized by the same method as described in paragraph 0221 of Japanese Patent No. 6243010, thereby obtaining the binder polymer P1-1 having the constituent units shown below .

[0510] In addition, in the following structural units, the subscript of a parenthesis represents content (molar ratio) of each structural unit. The following are the same.

[0511] [chemical formula 18]

[0512]

[0513] 〔Binder polymer P2-1〕

[0514] As the binder polymer P2-1, a binder polymer (commercially available) (manufactured by Sumitomo Bakelite Co., Ltd., trade name; SUMILITERESIN PR54046) having the following structural units was used.

[0515] [chemical formula 19]

[0516]

[0517] 〔Binder polymer...

Embodiment 31

[0563]

[0564] After coating the following underlayer-forming composition (I) on the same supports as those in Examples 1 to 30 and Comparative Examples 1 and 2 above using a wire bar, dry them in a drying oven at 150°C After drying for 40 seconds and applying the specific binder polymer in an amount described in Table 3, after forming the lower layer, the upper layer-forming coating liquid composition (I) with the following composition became 0.22 g / m 2 After coating with a wire-wound bar, drying was carried out at 150° C. for 40 seconds to obtain the lithographic printing plate precursor of Example 31 having a lower layer and an upper layer.

[0565] [Coating liquid composition for lower layer formation (I)]

[0566] - Specific binder polymers listed in Table 3: Amounts listed in Table 3

[0567] ・Infrared absorber (IR pigment (1): the above structure): 0.045 parts

[0568] · Megaface F-780: 0.03 parts

[0569] · Methyl ethyl ketone: 13.0 parts

[0570] · 1-methoxy-2-...

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PUM

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Abstract

Provided are: a lithographic printing original plate that comprises a positive-type image recording layer on an aluminum support and in which the Bekk smoothness of the surface of the outermost layer on the opposite side from the side on which the image recording layer is present is 1,000 seconds or less, the outermost layer contains particles, and the modulus of elasticity of the particles is 3.0 GPa or less; a layered body of lithographic printing original plates; a method for producing a lithographic printing plate; and a lithographic printing method.

Description

technical field [0001] The present invention relates to a lithographic printing plate precursor, a lithographic printing plate precursor laminate, and a method for producing a lithographic printing plate. Background technique [0002] Lithographic printing plate precursors are often stored and transported as a laminated body in which a plurality of sheets are stacked. In this laminated body, usually for the purpose of preventing the integrated displacement of the lithographic printing plate precursors, preventing the lithographic printing plate precursors from sticking to each other, and preventing scratches on the image recording layer side surface of the lithographic printing plate precursors, etc., between the lithographic printing plate precursors Insert backing paper in between. However, the use of the liner itself involves problems such as cost increase and disposal, and it needs to be removed before the exposure process, so it becomes a load on the plate making proce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41C1/10B41N1/14G03F7/00G03F7/004G03F7/039G03F7/09G03F7/11G03F7/32
CPCB41C1/10B41N1/14G03F7/00G03F7/004G03F7/039G03F7/11G03F7/09G03F7/32
Inventor 柏木加奈佐藤尚志
Owner FUJIFILM CORP