High-moisture-retention fountain solution compounded by k-carrageenan and konjac glucomannan and preparation method thereof

A high moisturizing, konjac gum technology, used in the preparation and printing of the printing surface, can solve the problems of low elasticity, easy dehydration shrinkage, and high gel brittleness, and achieves improved durability, delayed release, and anti-oxidation. improved effect

Inactive Publication Date: 2016-09-07
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

Embodiment 1

[0025] In this embodiment, a highly moisturizing dampening solution containing κ-carrageenan-konjac gum compound, comprising the following components and contents in parts by weight: 80 parts of deionized water, 12 parts of κ-carrageenan, and 8 parts of konjac gum , 4 parts of tea polyphenols, 3 parts of ancient oil, 2 parts of sorbitol, 4 parts of pH regulator, 2 parts of coconut oil fatty acid diethanolamide, 2 parts of wetting agent;

[0026] The wetting agent is prepared by mixing the following components by weight: 0.5 part of N-octylpyrrolidone, 1 part of sodium L-pyrrolidone carboxylate, and 0.5 part of glycerol.

[0027] Wherein the resistivity of deionized water at 25° C. is 1018 mΩ•cm; the pH adjuster is prepared by mixing phosphoric acid and ammonium dihydrogen phosphate, and the mass ratio of phosphoric acid and ammonium dihydrogen phosphate is 2:1.

[0028] Specific steps are as follows:

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

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PUM

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Abstract

The invention discloses high-moisture-retention fountain solution compounded by k-carrageenan and konjac glucomannan. The fountain solution consists of the following raw materials in parts by weight: 70-85 parts of deionized water, 10-15 parts of k-carrageenan, 6-10 parts of konjac glucomannan, 3-6 parts of tea polyphenol, 2-5 parts of Turkey red oil, 1-3 parts of sorbitol, 3-6 parts of pH modifier, 1-3 parts of coconut oil fatty acid diethanolamide, and 1-3 parts of wetting agent. The fountain solution serves as a hydrophilic film-forming agent through compounding k-carrageenan with konjac glucomannan, improves durability of a water film, and is excellent in wettability and permeability in use.

Description

technical field [0001] The invention relates to the technical field of offset printing fountain solution, in particular to a highly moisturizing fountain solution containing κ-carrageenan-konjac gum 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 ab...

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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