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Lithographic printing carrier, method for mfg. carrier and pre-sensitized board

一种平版印刷版、预敏化板的技术，应用在印刷表面的制备、印刷、印刷工艺等方向，能够解决难以制造抗浮渣性和印刷寿命预敏化板等问题

Inactive Publication Date: 2004-05-12
FUJIFILM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Conventionally, using a presensitized sheet having an image recording layer containing an infrared absorber like this, it is particularly difficult to manufacture a presensitized sheet excellent in both the above-mentioned scum resistance and printing life

Method used

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  • Lithographic printing carrier, method for mfg. carrier and pre-sensitized board
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  • Lithographic printing carrier, method for mfg. carrier and pre-sensitized board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0407]

[0408] With Si: 0.06wt%, Fe: 0.30wt%, Cu: 0.005wt%, Mn: 0.001wt%, Mg: 0.001wt%, Zn: 0.001wt% and Ti: 0.03wt%, the rest is aluminum and not Avoid impurities in aluminum alloys for preparing molten metals. After molten metal treatment and filtration, an ingot with a thickness of 500 mm and a width of 1200 mm was produced by DC casting. After cutting the surface to an average thickness of 10 mm with a surface slicer, the ingot was soaked at 550° C. for about 5 hours. When the temperature was lowered to 400° C., the ingot was made into a rolled plate with a thickness of 2.7 mm using a hot rolling mill. Furthermore, after heat treatment at 500° C. with a continuous annealing machine, the rolled sheet was finally cold-rolled into an aluminum sheet with a thickness of 0.24 mm to obtain an aluminum sheet of JIS 1050 material. This aluminum plate was processed to a width of 1030 mm, and treated continuously by the surface treatment method described below.

[0409]

[04...

Embodiment 2～16

[0461] The presensitized plates of Examples 2 to 16 were obtained in the same manner as in Example 1, except that the types of salt compounds in (1) above and the concentration of cations in the aqueous solution were changed as shown in Table 1.

Embodiment 17

[0463] Obtain the presensitization plate of embodiment 17 with the same method as embodiment 1, just replace above-mentioned (k) with following hydrophilic treatment (m), and change above-mentioned (1) as shown in table 1 Cerium cation concentration of cerium acetate.

[0464] (m) Hydrophilic treatment (polyvinylphosphonic acid treatment)

[0465] The aluminum plate was immersed in an aqueous treatment pool containing 1 wt% polyvinylphosphonic acid at 500°C for 10 seconds to perform hydrophilic treatment.

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Abstract

A presensitized plate in which an image recording layer is formed on a support for a lithographic printing plate obtainable by performing a treatment with an aqueous solution containing one or more divalent or multivalent cations at a concentration ranging from 0.0001 mol / L to less than 0.020 mol / L is excellent in both scum resistance and press life when processed into a lithographic printing plate.

Description

technical field [0001] The invention relates to a lithographic printing plate carrier, a method for manufacturing the carrier and a presensitized plate. More particularly, the present invention relates to a lithographic printing plate support having both high scum resistance and long print life when the support is processed into a lithographic printing plate, a method of manufacturing the support, and the use of This is a presensitized plate for lithographic printing plate supports. Background technique [0002] It is known that, in order to enhance the developability of a presensitized plate, after anodizing a lithographic printing plate, a hydrophilic treatment typified by silicate treatment is performed on the surface of the lithographic printing plate. If the surface of the lithographic printing plate carrier is hydrophilically treated, the scum resistance can be improved, because the hydrophobic ink hardly adsorbs on the non-image area of ​​the lithographic printing pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03F7/09B41N1/00B41N1/08B41N3/00B41N3/03B41N3/08C25D11/18G03F7/00G03F7/11
CPCB41N1/08B41N3/08Y10S430/145B41N3/03B41N3/006B41N1/00Y10S430/165
Inventor 佐佐木秀人堀田久
Owner FUJIFILM CORP