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Preparation method of water-based flexographic printing ink

A flexographic and ink technology, applied in the field of preparation of water-based flexographic inks, can solve the problems of inhibiting rapid development and application, poor scratch resistance and wear resistance, single applicable substrate, etc., and achieves good storage stability, not easy to blur, The effect of low production cost

Pending Publication Date: 2021-01-05
黄展才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although water-based flexographic inks have obvious advantages, most of the flexographic inks currently in the domestic market have the disadvantages of single applicable substrate, slow drying speed, poor water resistance, poor scratch resistance and low gloss, etc. These shortcomings also inhibit its rapid development and application

Method used

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  • Preparation method of water-based flexographic printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of water-based flexographic printing ink, comprises the steps:

[0023] (1) Take the raw materials according to parts by weight: 55 parts of water-soluble acrylic resin, 45 parts of water-based pigment, 2 parts of ethanol, 0.5 part of polydimethylsiloxane, 1 part of sodium lignosulfonate, CW-0601 defoaming 0.3 parts of antibacterial agent linoleum oil, 0.5 parts of wax emulsion; 2 parts of triethanolamine buffer with a pH value of 8.5 to 9.0, 3 parts of sodium alginate and 50 parts of water, set aside;

[0024] (2) Add water to the reaction kettle first, control the temperature of the reaction kettle between 90°C, then slowly add water-soluble acrylic resin, ethanol and CW-0601 defoamer in turn under stirring conditions, keep warm for 40 minutes, mix Stir well to form a base material;

[0025] (3) Reduce the temperature of the reactor to 35°C-40°C, add triethanolamine buffer to the base material in step (2), and adjust the pH value of the base mate...

Embodiment 2

[0028] A preparation method of water-based flexographic printing ink, comprises the steps:

[0029] (1) Raw materials by weight: 60 parts of water-soluble acrylic resin, 47 parts of water-based pigment, 3 parts of ethanol, 0.9 part of polydimethylsiloxane, 1.2 parts of sodium lignosulfonate, CW-0601 defoaming 0.4 parts of antibacterial agent Zanthoxylum volatile oil, 0.7 parts of wax emulsion; 2.5 parts of triethanolamine buffer with a pH value of 8.5 to 9.0, 4 parts of sodium alginate and 55 parts of water, set aside;

[0030] (2) Add water to the reaction kettle first, control the temperature of the reaction kettle between 80°C and 90°C, then slowly add water-soluble acrylic resin, ethanol and CW-0601 defoamer under stirring conditions, and keep warm for 45 Minutes, mix and stir evenly to form a bottom material;

[0031] (3) Reduce the temperature of the reactor to 35°C-40°C, add triethanolamine buffer to the base material in step (2), and adjust the pH value of the base ma...

Embodiment 3

[0034] A preparation method of water-based flexographic printing ink, comprises the steps:

[0035] (1) Raw materials by weight: 62 parts of water-soluble acrylic resin, 48 parts of water-based pigment, 3.5 parts of ethanol, 1.0 part of polydimethylsiloxane, 1.3 parts of sodium lignosulfonate, CW-0601 defoaming 0.4 parts of antibacterial agent linoleum oil, 0.8 parts of wax emulsion; 2.8 parts of triethanolamine buffer with a pH value of 8.5 to 9.0, 4.5 parts of sodium alginate and 58 parts of water, set aside;

[0036] (2) Add water to the reaction kettle first, control the temperature of the reaction kettle between 80°C and 90°C, then slowly add water-soluble acrylic resin, ethanol and CW-0601 defoamer under stirring conditions, and keep warm for 48 Minutes, mix and stir evenly to form a bottom material;

[0037] (3) Reduce the temperature of the reactor to 35°C-40°C, add triethanolamine buffer to the base material in step (2), and adjust the pH value of the base material t...

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Abstract

The invention relates to the technical field of printing ink, in particular to a preparation method of water-based flexographic printing ink. The preparation method adopts the following raw materialsin parts by weight: 55-65 parts of water-soluble acrylic resin, 45-50 parts of water-based pigment, 2-4 parts of ethanol, 0.5-1.2 parts of polydimethylsiloxane, 1-1.5 parts of sodium lignin sulfonate,0.3-0.5 part of a defoamer CW-0601, 0.5-1 part of an antibacterial agent, 0.5-1 part of a wax emulsion, 2-3 parts of a triethanolamine buffer agent, 3-5 parts of sodium alginate and 50-60 parts of water. The water-based flexographic printing ink prepared by the method is safe and environment-friendly, and has strong coloring effect, high drying speed, good water resistance and wear resistance, low production cost and good storage stability.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a preparation method of water-based flexographic inks. Background technique [0002] With the development of social culture, science and technology, and economy, the printing industry is developing at an unprecedented speed. Ink is an important material for printing. It expresses patterns and characters on substrates by printing or inkjet painting, and is used for books, periodicals, packaging and decoration. , architectural decoration and electronic circuit boards and other printing. With the increase of social demand, the variety and output of ink have also expanded and increased accordingly. Ink is widely used in the printing industry. It is mainly composed of resins, pigments, solvents, additives and other components. At present, most of the inks used in the printing industry are solvent-based inks. This type of ink will emit harmful substances to the human body and the environ...

Claims

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Application Information

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IPC IPC(8): C09D11/107C09D11/033C09D11/03
CPCC09D11/107C09D11/033C09D11/03
Inventor 黄展才
Owner 黄展才
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