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Alcohol-free fountain solution

A technology of alcohol fountain solution and mixture, which is applied in the field of lithographic fountain solution, can solve the problems of difficulty in stable control of dosage and large performance fluctuation, and achieve the effects of good performance, reduced surface tension and strong stability

Inactive Publication Date: 2015-09-16
倪娉娉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are still problems such as difficult to control the dosage stably and large fluctuations in performance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Prepare the raw material mixture by the following mass percentages: water (tap water) accounts for 49% of the total mass of the mixture, citric acid accounts for 6.5% of the total mass of the mixture, zinc nitrate accounts for 1.6% of the total mass of the mixture, glycerol accounts for 22% of the total mass of the mixture, poly Oxyethylene polyoxypropylene ether accounts for 7.4% of the total mass of the mixture, thiosalicylic acid accounts for 1% of the total mass of the mixture, sodium dehydroacetate accounts for 0.6% of the total mass of the mixture, and sodium edetate accounts for 1% of the total mass of the mixture. 3%, polyether accounts for 0.5% of the total mass of the mixture, and gum arabic accounts for 8.4% of the total mass of the mixture.

[0028] The alcohol-free fountain solution preparation method of the present embodiment is as follows:

[0029] Add water into the reaction vessel, heat to 50°C, then add citric acid, zinc nitrate, glycerin, alkylphenol ...

Embodiment 2

[0034] Prepare the raw material mixture by the following mass percentages: water (tap water) accounts for 52% of the total mass of the mixture, citric acid accounts for 5.8% of the total mass of the mixture, zinc nitrate accounts for 1.5% of the total mass of the mixture, glycerol accounts for 26% of the total mass of the mixture, poly Oxyethylene polyoxypropylene ether accounts for 5.6% of the total mass of the mixture, thiosalicylic acid accounts for 0.78% of the total mass of the mixture, sodium dehydroacetate accounts for 0.93% of the total mass of the mixture, sodium edetate accounts for 1.2%, polyoxypropylene polyoxyethylene glyceryl ether accounts for 0.59% of the total mass of the mixture, and gum arabic accounts for 5.6% of the total mass of the mixture.

[0035] The preparation method of the alcohol-free fountain solution of this embodiment is the same as that of Embodiment 1.

[0036] After measurement, the main properties of the alcohol-free fountain solution prepa...

Embodiment 3

[0040] Prepare the raw material mixture by the following mass percentages: water (deionized water) accounts for 56% of the total mass of the mixture, citric acid accounts for 5% of the total mass of the mixture, zinc nitrate accounts for 1.2% of the total mass of the mixture, and glycerin accounts for 25% of the total mass of the mixture , alkylphenol polyoxyethylene polyoxypropylene ether accounts for 5% of the total mass of the mixture, thiosalicylic acid accounts for 0.85% of the total mass of the mixture, sodium dehydroacetate accounts for 0.9% of the total mass of the mixture, polyoxypropylene polyoxyethylene Glycerol ether accounts for 0.55% of the total mass of the mixture, and gum arabic accounts for 5.5% of the total mass of the mixture; wherein, the deionized water satisfies a resistivity of 10 at 25°C. 18 mΩ·cm.

[0041] The preparation method of the alcohol-free fountain solution of this embodiment is the same as that of Embodiment 1.

[0042] After measurement, t...

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Abstract

The invention discloses an alcohol-free fountain solution which is a mixture containing water, citric acid, zinc nitrate, glycerol, alkylphenol polyoxyethylene polyoxypropylene ether, thiosalicylic acid, sodium dehydroacetate, sodium ethylenediaminetetraacetate, polyoxypropylene polyoxyethylene glyceryl ether and Arabic gum, wherein the mixture contains the following components by mass percent: 45-65% of water, 3-7% of citric acid, 0.5-2.0% of zinc nitrate, 20-30% of glycerol, 2-8% of alkylphenol polyoxyethylene polyoxypropylene ether, 0.2-1.5% of thiosalicylic acid, 0.3-1.5% of sodium dehydroacetate, 0-5% of sodium ethylenediaminetetraacetate, 0.2-1% of polyoxyethylene polyoxypropylene glyceryl ether and 3-10% of Arabic gum. According to the invention, the alcohol-free fountain solution can completely replace the alcohol fountain solution widely used at present, has the appropriate surface tension and good adhesion, and is easy to control the use of materials, high in stability, green and environmental friendly.

Description

technical field [0001] The invention relates to the technical field of lithographic printing fountain solution, in particular to an alcohol-free fountain solution. Background technique [0002] Fountain solution is an indispensable chemical additive in the printing process of the printing machine. It forms a uniform water film on the blank part of the printing plate to resist the infiltration of ink on the graphic and text to the blank part, thereby preventing dirty plates; it also It can replenish the hydrophilic layer damaged during the printing process, reduce the temperature of the surface of the printing plate and clean the surface of the printing plate. Fountain solutions mainly include ordinary fountain solution, alcohol fountain solution and non-ionic surface active fountain solution. Currently, the most widely used fountain solution is alcohol fountain solution, that is, the fountain solution containing alcohol or isopropanol Plate liquid. Alcohol and isopropanol ...

Claims

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Application Information

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IPC IPC(8): B41N3/08
Inventor 倪娉娉
Owner 倪娉娉
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