Preparation method for raw material used for printing ink

A raw material and ink technology, applied in the field of preparation of ink raw materials, can solve problems affecting ink performance, poor dispersion, etc.

Inactive Publication Date: 2017-06-06
衡阳唯美印务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the existing ink raw materials have poor water dispersibility, which affects the performance of the ink

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of preparation method of printing ink raw material, comprises the steps:

[0021] (1) Pre-emulsify 60 parts by weight of deionized water, 100 parts by weight of mixed monomers and the first part of compound emulsifier for 1 hour to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, butyl acrylate, A mixture of acrylic acid and hydroxyethyl acrylate, the compound emulsifier uses N-methylol acrylamide;

[0022] (2) Add the second part of compound emulsifier, 30 parts by weight of deionized water, and 0.3 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 83 ℃, add 3wt% of the pre-emulsion and 1 / 3 of the initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol polyoxyethylene Ether-9 mixture;

[0023] (3) After the...

Embodiment 2

[0025] A kind of preparation method of printing ink raw material, comprises the steps:

[0026] (1) Pre-emulsify 90 parts by weight of deionized water, 150 parts by weight of mixed monomers and the first part of compound emulsifier for 2 hours to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, butyl acrylate, A mixture of acrylic acid and hydroxyethyl acrylate, the compound emulsifier uses N-methylol acrylamide;

[0027] (2) Add the second part of compound emulsifier, 50 parts by weight of deionized water, and 0.7 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 85 ℃, add 15wt% pre-emulsion and 1 / 3 initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol polyoxyethylene Ether-9 mixture;

[0028] (3) After the blue phase ...

Embodiment 3

[0030] A kind of preparation method of printing ink raw material, comprises the steps:

[0031] (1) Pre-emulsify 80 parts by weight of deionized water, 120 parts by weight of mixed monomers and the first part of compound emulsifier for 1.5 hours to prepare a pre-emulsion. The mixed monomers include methyl methacrylate, styrene, and butyl acrylate , a mixture of acrylic acid and hydroxyethyl acrylate, and the compound emulsifier uses N-methylol acrylamide;

[0032] (2) Add the second part of compound emulsifier, 40 parts by weight of deionized water, and 0.5 parts by weight of sodium bicarbonate into the reactor equipped with a stirrer, thermometer, reflux condenser and constant pressure dropping funnel, stir and heat up to 84 ℃, add 3wt%-15wt% pre-emulsion and 1 / 3 initiator, the mass ratio of the first composite emulsifier to the second composite emulsifier is 2:1, and the initiator includes ammonium persulfate, alkylphenol Mixtures of polyoxyethylene ether-9;

[0033] (3) A...

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PUM

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Abstract

The invention provides a preparation method for a raw material used for printing ink. The preparation method comprises the following steps: subjecting 60 to 90 parts by weight of deionized water, 100 to 150 parts by weight of mixed monomers and the first part of a composite emulsifier to pre-emulsification for 1 to 2 h so as to prepare a pre-emulsion; adding the second part of the composite emulsifier, 30 to 50 parts by weight of deionized water and 0.3 to 0.7 part by weight of sodium bicarbonate into a reaction vessel equipped with a stirrer, a thermometer, a reflux condensing tube and a constant-pressure dropping funnel, carrying out stirring and heating to 83 to 85 DEG C, and adding 3 to 15 wt% of the pre-emulsion and 1 / 3 of an initiator; and when a blue phase occurs, adding the rest pre-emulsion and an aqueous solution of the rest initiator drop by drop within 3 to 4 h, carrying out heating to 86 to 89 DEG C, maintaining the temperature for 3 to 5 h, then carrying out cooling to 42 to 45 DEG C, adjusting a pH value to 7 by using ammonia water and then carrying out filtering and discharging. The raw material prepared in the invention has good water dispersibility and improves the final product quality of the printing ink.

Description

technical field [0001] The invention belongs to the technical field of printing inks, and specifically refers to a method for preparing ink raw materials. Background technique [0002] At present, the inks used in flexographic printing, gravure printing and other printing processes in China are basically solvent-based inks, and the organic volatile compounds (VOC) in these solvent-based inks are usually not treated and directly discharged into the air, not only through Inhalation enters the human body and damages the human liver and nervous system, etc., and pollutes the environment, causing harm to the environment. With the progress of society and the enhancement of people's awareness of environmental protection, water-based inks, UV-curable inks and soybean oil inks have become the focus of current ink research and development and the future development direction. [0003] UV curable inks contain little to no solvents, are fast drying, are VOC compliant, and are environme...

Claims

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Application Information

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IPC IPC(8): C08F220/14C08F212/08C08F220/18C08F220/06C08F220/28C08F2/30C09D11/107
Inventor 吴公社
Owner 衡阳唯美印务有限公司
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