Carbon sol modified fountain solution compounded by kappa-carrageenan-konjac glucomannan and preparation method thereof

A technology of konjac gum and carbon sol, which is applied in the preparation and printing of the printing surface, can solve the problems of small elasticity, high brittleness of the gel, easy dehydration and shrinkage, etc., and achieve improved durability, improved oxidation resistance, and delayed release Effect

Inactive Publication Date: 2016-12-07
HEFEI DINGLIANG OPTICAL TECH
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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 brittleness, low elasticity, and easy dehydration and shrinkage of the gel. These problems can be solved by synergistic effect with other food gums. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In this embodiment, a modified carbon sol-modified fountain solution containing κ-carrageenan and konjac gum includes the following components and 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 Taikoo oil, 2 parts of sorbitol, 4 parts of pH regulator, 2 parts of non-ionic fluorocarbon surfactant, 2 parts of nano carbon sol, 1 part of sorbitol fatty acid ester.

[0025] 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.

[0026] Specific steps are as follows:

[0027] (1) Preparation of κ-carrageenan-konjac gum-tea polyphenol microspheres:

[0028] ①. Dissolve κ-carrageenan, konjac gum and tea polyphenols in deionized water as the water phase for use;

[0029] ② Measure the Taikoo oil, the volume ratio of Taikoo oil to ...

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PUM

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Abstract

The invention discloses carbon sol modified fountain solution compounded by kappa-carrageenan-konjac glucomannan. The carbon sol modified fountain solution comprises the following raw materials in parts by weight: 70-85 parts of de-ionized water, 10-15 parts of kappa-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 non-ionic fluorocarbon surface active agent, 1-3 parts of nanocarbon sol, and 0.5-1 part of sorbitol fatty acid ester. The fountain solution serves as a hydrophilic film forming agent through compounding of kappa-carrageenan and konjac glucomannan, so that the durability of a water film is improved, and the fountain solution is excellent in wettability and permeability during using; and kappa-carrageenan-konjac glucomannan-tea polyphenol microballs have the characteristics of fine average particle sizes and slow tea polyphenol release, and the release of tea polyphenol is slowed in use of the fountain solution, so that the oxidation resistance of tea polyphenol is greatly improved, and the use stability of the fountain solution is guaranteed.

Description

Technical field [0001] The invention relates to the technical field of offset printing fountain solution, in particular to a carbon sol modified fountain solution containing κ-carrageenan-konjac gum compound 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. The copied graphics and blank parts are jointly established on the surface of a unified printing plate after technical treatment, so that the blank parts have Very strong water absorption, 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 printing plate absorbs water to form a water film, and then ink is supplied to the printing plate. At this time, because there is already a layer of water film in the blank part of the printing plate, the ink cannot be absorbed in the blank part, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41N3/08
CPCB41N3/08
Inventor 范春平
Owner HEFEI DINGLIANG OPTICAL TECH
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