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Preparation method of water-based pigment dispersion, water-based pigment dispersion and application

A technology of water-based pigments and dispersions, which is applied in the preparation of water-based pigment dispersions, water-based pigments, water-based pigment dispersions and their applications, can solve the problems of polymer inconsistency, achieve low cost, high safety, and reduce production costs Effect

Active Publication Date: 2020-05-12
东莞市浩彩油墨科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the polymer of this method is not a cross-linked structure

Method used

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  • Preparation method of water-based pigment dispersion, water-based pigment dispersion and application

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Experimental program
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Effect test

Embodiment 1

[0034] The raw material formula includes 24 parts of titanium dioxide, 3 parts of sodium monoalkyl sulfonate maleate, 12 parts of structural formula C 6 h 13 OOCCH=CHCOO(CH 2 CH 2 O) 13.2 (CH 2 CHCH 3 O) 3.6 CH 3 Monoalkyl maleate polyether, 4 parts of butyl acrylate, 1.3 parts of hexanediol diacrylate, 0.1 part of pentaerythritol tetraacrylate, 0.2 parts of azobisisobutyronitrile, appropriate amount of triethanolamine and 55 parts of deionized water;

[0035] Grind titanium dioxide, monoalkyl maleate sodium sulfonate, monoalkyl maleate polyether, butyl acrylate, pentaerythritol tetraacrylate and hexanediol diacrylate in a grinder for 3 times, add Azodiisobutyronitrile, stir evenly, add deionized water dropwise under high-speed stirring at a speed of 800-2000rpm, after the dropwise addition, adjust the speed to 200-300rpm, raise the temperature to 60°C for 2.5 hours, then raise the temperature to 70°C for 3-54 hour, lower the temperature, add triethanolamine to adjust...

Embodiment 2

[0037] The raw material formula includes 32 parts of phthalocyanine blue, 5 parts of monoalkyl maleate sulfonate sodium, 5 parts of structural formula C 6 h 13 OOCCH=CHCOO(CH 2 CH 2 O) 13.2 (CH 2 CHCH 3 O) 3.6 CH 3 Monoalkyl maleate polyether, 2 parts of butyl acrylate, 3 parts of styrene, 3 parts of divinylbenzene, 0.1 part of pentaerythritol tetraacrylate, 0.25 parts of azobisisobutyronitrile, appropriate amount of triethanolamine and 70 parts deionized water;

[0038] Grind phthalocyanine blue, sodium monoalkyl sulfonate maleate, polyether monoalkyl maleate, butyl acrylate, styrene, pentaerythritol tetraacrylate, and divinylbenzene 3 times in a grinder , add azobisisobutyronitrile, stir evenly, add deionized water dropwise under high-speed stirring at a speed of 1300rpm, after the dropwise addition, adjust the speed to 200-300rpm, heat up to 58°C for 3 hours, then heat up to 75°C for 3.5 hours , lower the temperature, add triethanolamine to adjust the pH to 8.0-5.5...

Embodiment 3

[0040] The raw material formula includes 45 parts of carbon black, 7 parts of sodium 4-vinylbenzene sulfonate, 3 parts of sodium acrylamide alkyl sulfonate, 20 parts of structural formula C 6 h 13 OOCCH=CHCOO(CH 2 CH 2 O) 15.2 (CH 2 CHCH 3 O) 4.1 CH 3 Monoalkyl maleate polyether, 7 parts of ethyl acrylate, 4 parts of divinylbenzene, 0.1 part of trivinylbenzene, 0.3 part of azobisisoheptanonitrile, appropriate amount of diethanolamine and 80 parts of deionized water;

[0041] Carbon black, sodium 4-vinylbenzenesulfonate, sodium acrylamide alkylsulfonate, monoalkyl maleate polyether, ethyl acrylate, divinylbenzene, and trivinylbenzene were ground in a mill for 3 The second time, add azobisisoheptanonitrile, stir evenly, add deionized water dropwise under high-speed stirring at a speed of 1500rpm, after the dropwise addition, adjust the speed to 200-300rpm, heat up to 50°C for 3 hours, and then heat up to 70°C for 3 hours hour, lower the temperature, add diethanolamine to...

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Abstract

The invention belongs to the technical field of water-based ink, and relates to a water-based pigment, in particular to a preparation method of a water-based pigment dispersion, the water-based pigment dispersion and application. Raw materials comprise (by weight): 20-50 parts of a pigment, 2-10 parts of an anionic polymerizable emulsifier, 3-25 parts of maleic acid monoalkyl ester polyether, 2-10parts of a hydrophobic monofunctional polymerizable monomer, 1-5 parts of a hydrophobic polyfunctional polymerizable monomer, 0.05-0.5 part of an oil-soluble azo radical initiator, a proper amount ofa pH regulator and 50-100 parts of deionized water. After full emulsification, free radical polymerization is carried out, and a cross-linked dispersant coating layer is formed on the surface of thepigment; the water-based pigment dispersion is prepared through a one-pot method, and compared with an existing method for preparing a dispersing agent firstly and then preparing a water-based pigmentdispersion, the method has the characteristics that the production procedures are reduced, the production efficiency is improved and the cost is reduced, the dispersing agent coats the surface of thepigment in a cross-linking mode, the stability is good, and the application effect in water-based ink is good.

Description

technical field [0001] The invention belongs to the technical field of water-based inks, and relates to water-based pigments, in particular to a preparation method of water-based pigment dispersions, water-based pigment dispersions and applications. Background technique [0002] Water-based ink is an ink that uses water as a solvent or dispersant. Since it does not contain or contains a small amount of organic solvents, it meets the current environmental protection requirements, so it has developed rapidly in recent years. However, there are still some technologies restricting the application of water-based inks in wider fields, among which the stable dispersion of pigments is a technical restriction point. In the prior art, the most commonly used pigment dispersion method is to use a dispersant to disperse the pigment in water in advance to prepare a water-based pigment slurry or directly disperse the pigment in the preparation of the water-based ink. However, a problem st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/06C08F220/18C08F222/14C08F2/44C09D17/00C09D11/037
CPCC08F283/065C08F2/44C09D17/008C09D17/001C09D11/037
Inventor 张佳毅
Owner 东莞市浩彩油墨科技有限公司
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