Non-alcoholic fountain solution containing composite surfactant and preparation method of non-alcoholic fountain solution

A compound surfactant and alcohol-free technology, which is applied in the preparation and printing of printing surfaces, can solve the problems of low elasticity, high brittleness of gel, easy dehydration shrinkage, etc., and achieve improved durability, improved oxidation resistance, delayed release effect

Pending Publication Date: 2016-09-28
HEFEI ALL ROUND POLYMER MATERIAL FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gel formed by κ-carrageenan has the advantages of low required concentration and high transparency, but there are problems such as high brittlene

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1

[0025] In this embodiment, an alcohol-free fountain solution containing a composite surfactant includes the following components and parts by weight: 80 parts of deionized water, 12 parts of κ-carrageenan, 8 parts of konjac gum, and 4 parts of tea polyphenols. 2 parts Taikoo oil, 2 parts sorbitol, 3 parts pH regulator, 4 parts composite surfactant, 2 parts glycerol polyoxypropylene ether;

[0026] The composite surfactant is made by mixing the following parts by weight: 2 parts of alkylphenol polyoxyethylene ether, 0.5 parts of sodium dodecyl sulfonate, 0.5 parts of cetyltrimethylammonium bromide, Alkyl dimethyl betaine constitutes 1 part.

[0027] The resistivity of deionized water at 25℃ is 10 18 mΩ•cm; The pH regulator is made by mixing phosphoric acid and ammonium dihydrogen phosphate, and the mass ratio of phosphoric acid to ammonium dihydrogen phosphate is 2:1.

[0028] Specific steps are as follows:

[0029] (1) Preparation of κ-carrageenan-konjac gum-tea pol...

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PUM

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Abstract

The invention discloses a non-alcoholic fountain solution containing a composite surfactant. The non-alcoholic fountain solution comprises the following raw materials in part by weight: 70-85 parts of deionized water, 10-15 parts of kappa-carrageenan, 6-10 parts of amorophophallus konjac, 3-6 parts of tea polyphenol, 2-5 parts of sulfated caster oil, 1-3 parts of sorbitol, 3-6 parts of a pH regulator, 3-5 parts of a composite surfactant, and 1-3 parts of POP glycerin ether. Kappa-carrageenan and amorophophallus konjac are compounded to form a compound, and the compounded as a hydrophilic film former improves the water film persistence, so that the fountain solution has high wettability and permeability when used; kappa-carrageenan-amorophophallus konjac-tea polyphenol microspheres have the characteristics of small mean grain size and slow release of tea polyphenol, and the release of tea polyphenol is slowed during the using process of the fountain solution, so that the oxidation resistance of tea polyphenol is improved greatly, and the using stability of the fountain solution is ensured; and a multielement compounding system of the composite surfactant improves the surface tension reducing efficiency greatly, meets the working solution surface tension requirement of the fountain solution, and is beneficial for enabling the printing process to reach the water-ink balance quickly.

Description

technical field [0001] The invention relates to the technical field of offset printing fountain solution, in particular to an alcohol-free fountain solution containing a composite surfactant and a preparation method thereof. Background technique [0002] Offset printing uses the two natural laws of immiscibility of oil and water and selective adsorption of solids to liquids, and builds the copied graphics and blank parts on the surface of the unified printing plate after technical treatment, so that the blank part has Strong water absorption performance, the graphic part is lipophilic and water repellent. In the printing process, water is supplied to the entire printing plate first, so that the blank part of the layout absorbs water to form a water film, and then ink is supplied to the printing plate. At this time, since a layer of water film already exists in the blank part of the printing plate, the ink cannot be adsorbed on the blank part, and the graphic part absorbs a ...

Claims

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Application Information

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IPC IPC(8): B41N3/08
CPCB41N3/08
Inventor 王贵东宋睿
Owner HEFEI ALL ROUND POLYMER MATERIAL FACTORY
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