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Alcohol-free fountain solution with high viscosity and low surface tension

A low surface tension, alcohol-free technology, applied in the field of fine chemicals, can solve the problems of less high-viscosity fountain solution, the demand for high-viscosity fountain solution cannot be well met, etc., to achieve low surface tension and improve the efficiency of samples. Content, good use effect

Inactive Publication Date: 2014-07-23
苏州禾川化学技术服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, there are relatively few high-viscosity fountain solutions on the market, and the demand for high-viscosity fountain solutions in the offset printing process has not been well met

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A high-viscosity, low-surface-tension, alcohol-free fountain solution formulated from the following raw materials:

[0029] 44 parts of alcohol-free solvent (ethylene glycol monobutyl ether 17g, dipropylene glycol methyl ether 28g), buffer agent 3 parts (acetic acid 1g, sodium acetate 2g), wetting agent propylene glycol 5g, surfactant 3.5 parts (E-13102g, Fatty alcohol polyoxyethylene ether AEO-91.5g), silicone defoamer 0.3g, thickener sodium carboxymethyl cellulose 1g, antiseptic and bactericide sodium benzoate 0.5g, penetrant rapid penetrant T2g, electrolyte magnesium nitrate 1.5 g, the balance of water.

[0030] A preparation method of high viscosity, low surface tension alcohol-free fountain solution, comprising the following steps:

[0031] 1) Add 1g of sodium carboxymethyl cellulose to 5g of propylene glycol and stir to moisten, add water under stirring conditions, and disperse evenly until clear and transparent;

[0032] 2) Add 17g of ethylene glycol monobutyl ...

Embodiment 2

[0035] A high viscosity, low surface tension alcohol-free fountain solution formulated from the following raw materials:

[0036] 44g alcohol-free solvent (propylene glycol monobutyl ether 17g, triethanolamine 7g, diethylene glycol ethyl ether 20g), buffering agent citric acid 4g, wetting agent glycerol 7g, surfactant 3g (Tween 802g, coconut oil fatty acid two Ethanolamide 65011g), silicone defoamer 0.3g, thickener sodium carboxymethyl cellulose 0.5g, antiseptic and bactericide isothiazolinone 1g, penetrant JFC 2g, electrolyte trisodium phosphate 1g, the balance of water.

[0037] 1) Add 0.5g sodium carboxymethyl cellulose to 7g glycerol and stir to moisten, add water while stirring, and disperse evenly until clear and transparent;

[0038] 2) Add 17g propylene glycol butyl ether, 15g diethylene glycol ethyl ether, and 7g triethanolamine to the above dispersed solution and stir evenly, then add 1g isothiazolinone, 2g penetrant JFC, 2g Tween 80, 1g6501, 1g phosphoric acid Add ...

Embodiment 3

[0041] A high-viscosity, low-surface-tension, alcohol-free fountain solution, prepared from the following raw materials:

[0042]51g alcohol-free solvent (ethylene glycol mono-n-propyl ether 15g, diethylene glycol ethyl ether 13g, dipropylene glycol methyl ether 23g), buffer 2.8g (malic acid 1.3g, sodium citrate 1.5g), wetting agent glycerine Alcohol 6g, surfactant 2.3g (alkylphenol polyoxyethylene ether TX-100.8g, Surfynol440 surfactant 1.5g), defoamer 2.2g (2,4,7,9-tetramethyl-5-decane Alkyne-4,7-diol 2g, tributyl phosphate 0.2g), thickener hydroxypropyl methylcellulose 0.5g, antiseptic and bactericide sodium hexametaphosphate 1.2g, fast penetrating agent T1.5g, electrolyte chlorine Sodium chloride 1g, the balance water.

[0043] 1) Add 0.5g of hydroxypropyl methylcellulose into 6g of glycerol and stir to moisten, add water under stirring conditions, and disperse evenly until clear and transparent;

[0044] 2) Add 15g of ethylene glycol propyl ether, 13g of diethylene glyc...

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PUM

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Abstract

The invention discloses alcohol-free fountain solution with high viscosity and low surface tension. The alcohol free fountain solution with high viscosity and low surface tension comprises the following components by weight, 30-55 parts of alcohol solvents, 2-6 parts of buffer agents, 3-8 parts of wetting agents, 1-4 parts of surface active agents, 0.3-2.2 parts of antifoaming agents, 0.5-3 parts of thickening agents, 0.5-1.2 parts of anticorrosion and bactericidal agents, 1-3 parts of penetrating agents, 0-2 parts of electrolyte and 20-45 parts of viscosity modifier water. The fountain solution is free of volatile solvents containing alcohol and isopropyl alcohol and pollution to the environment, the surface tension ranges from 4*10-2N / m to 7*10-2N / m, pH ranges from 4.8 to 5.5, the heat conduction rate ranges from 800mus / cm to 1200mus / cm, and therefore, quality requirements of the fountain solution can be met better.

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to an alcohol-free dampening solution with high viscosity and low surface tension. Background technique [0002] Fountain solution is an indispensable auxiliary in the process of offset printing. In offset printing, the printing plate is first used with fountain solution to form a water film on the surface of the blank part, and then contacts the ink, so that the blank part of the printing plate will not touch Ink, which forms a uniform and stable water film on the blank part of the printing plate to resist ink infiltration to the blank part and prevent dirty plates. On the other hand, supplementing the hydrophilic layer of the layout can prolong the life of the printing plate, adjust and control the temperature of the layout, prevent the emulsification of the ink, and remove powder, hair loss, paper dust, lint and other impurities of the ink and printing materials. The function of fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/08
Inventor 景欣欣王婷婷陈珍珍杜威劲
Owner 苏州禾川化学技术服务有限公司
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