Protective solution for CTP plate material in the baking process

A technology of protective liquid and plate material, applied in the field of printing plate material production, which can solve the problems of reduced printing suitability of plate material, limited protective effect of baked plate, large dot deformation rate, etc.

Inactive Publication Date: 2017-11-03
HUANGSHAN YINJIANG TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing protective liquids have limited protective effect on the baked plate. The dots in the graphics and text part have a large deformation rate when baked at high temperature, and the physical and chemical properties of the blank part will also change, resulting in a decrease in the printing suitability of the plate. Dirty phenomenon is more frequent in the process

Method used

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  • Protective solution for CTP plate material in the baking process
  • Protective solution for CTP plate material in the baking process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: A protective solution for CTP plate baking, including the following raw materials in mass fractions: ammonium pentaborate 1.0-5.0%, ammonium tetraborate 0.5-2.0%, TX-100.3-0.5%, NP-100.2-0.5% %, 0.5-1.2% of alkyl diphenyl ether disulfonate, and the balance is water; wherein, TX-10+NP-10: alkyl diphenyl ether disulfonate=1:1.0-1.2.

[0013] Its preparation method comprises the following steps:

[0014] (1) add borate, anionic surfactant and nonionic surfactant to water successively, all carry out stirring and dissolving after adding each time, make it mix evenly;

[0015] (2) Filter and remove slag from the above solution with a 10um filter element to obtain a colorless and transparent protective solution;

[0016] Its use method includes the following steps:

[0017] (1) Take the CTP plate after the development process (produced by Jinruitai Technology Co., Ltd., JRT200-8 positive thermal CTP plate), scrape off the excess water on the plate, and then evenly...

Embodiment 2

[0020] Embodiment 2: A protective solution for CTP plate baking, including the following raw materials in mass fractions: sodium tetraborate 1.0-3.0%, ammonium pentaborate 1.0-3.0%, NP-100.5-1.0%, fatty alcohol polyoxyethylene Ether sulfosuccinic acid half ester disodium salt 0.3-0.6%, alkyl ether sulfosuccinic acid sodium 0.3-0.6%, the balance is water; among them, NP-10: fatty alcohol polyoxyethylene ether sulfosuccinic acid half Ester disodium salt + sodium alkyl ether sulfosuccinate = 1: 1.0 ~ 1.2.

Embodiment 3

[0021] Embodiment 3: a kind of protective solution for baking CTP plates, including the following raw materials in mass fraction: ammonium tetraborate 2.0~5.0%, ammonium fluoroborate 1.0~2.0%, NP-100.3~0.5%, AEO-9 0.2~ 0.5%, alkyl diphenyl ether disulfonate 0.3-0.6%, sodium dodecylbenzene sulfonate 0.3-0.6%, the balance is water; among them, NP-10+AEO-9: alkyl diphenyl ether Disulfonate+sodium dodecylbenzenesulfonate=1:1.0~1.2.

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Abstract

The invention belongs to the technical field of printing plate material production, in particular to a protective solution for a CTP printing plate material in the baking process. The protective solution comprises the following raw materials, by mass percentage, 1.0-7.0% of borate, 0.5-1.0% of a nonionic surfactant, 0.5-1.2% of an anionic surfactant, and the balance water, wherein the borate is at least one selected from ammonium pentaborate, sodium tetraborate, ammonium tetraborate and ammonium fluoborate, the nonionic surfactant is at least one selected from alkylphenol ethoxylates and fatty alcohol-polyoxyethylene ether, and the anionic surfactant is at least one selected from alkyl diphenyl ether disulfonate, fatty alcohol-polyoxyethylene ether sulfosuccinic acid half-ester disodium salt, alkyl ether sulfonated sodium succinate and sodium dodecyl benzene sulfonate. The protective solution for the CTP printing plate material in the baking process has the advantages that the pressrun of the printing plate material can be increased, and the layout can be ensured not to be dirty.

Description

technical field [0001] The invention belongs to the technical field of printing plate production, and in particular relates to a protective liquid for CTP plate baking. Background technique [0002] The surface of the CTP plate includes the lipophilic graphic part and the hydrophilic blank part, and the purpose of printing can be realized because of the characteristics of the region's lipophilicity and hydrophilicity. The graphics and text of ordinary CTP plates are easily dissolved by UV curable inks, and printing cannot be completed, so it needs to be baked. Plate baking in the printing industry refers to the operation of baking the developed plate at high temperature to improve the printing number and printing effect of the plate. Since the micropores on the surface of the plate that have been sealed and filled are reopened under high temperature to restore the adsorption activity of the plate, dirtying will occur during the printing process. Therefore, it is necessary t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/08
CPCB41N3/08
Inventor 李煜翁宏飏
Owner HUANGSHAN YINJIANG TECH
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