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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AI-Extracted 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...
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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.

Application Domain

Printing pre-treatment

Technology Topic

Examples

  • Experimental program(1)

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 polyphenol microspheres:
[0030] ①. Dissolve κ-carrageenan, konjac gum and tea polyphenols in deionized water as the water phase for use;
[0031] ② Measure the Taikoo oil, the volume ratio of Taikoo oil to deionized water is 5:1, add sorbitol to it, fully dissolve and stir evenly, as the oil phase for later use;
[0032] ③. Add the water phase to the oil phase, homogenize for 5 minutes under the condition of 18000 rpm, and then separate the obtained microemulsion with a separatory funnel for oil-water separation, and take the separated aqueous solution for freeze drying to obtain κ-carrageenan-konjac Gum-tea polyphenol microspheres;
[0033] (2) Add the colloidal microspheres, composite surfactants, and glycerol polyoxypropylene ether of step (1) to a part of deionized water, stir and mix thoroughly to prepare a mixed solution;
[0034] (3) Add the pH adjuster to the remaining deionized water, stir and mix uniformly, stir for 30-50 minutes, then add it to the mixed solution of step (2), stir and disperse fully to obtain a composite surfactant-containing Alcohol-free fountain solution.
[0035] Various performance index data: pH value is 5.4, conductivity is 1260μs/cm, surface tension is 44mN/m, dynamic viscosity is 1.25cPs, ink emulsification rate <20% when used for printing.
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PUM

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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