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A kind of aqueous solid predispersed pigment and its preparation process

A preparation process and pre-dispersion technology, which is applied in the treatment of inorganic pigments, organic dyes, fibrous fillers, etc., can solve the problems of wide particle distribution, serious dust pollution, dark color and light, etc., and achieve good dispersion effect

Active Publication Date: 2019-01-22
美利达颜料工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing pigments are dry powder pigments, which are mixed and stirred with the processed materials during use. In order to achieve a better coloring effect, the mixing and stirring time is generally longer. The dry powder pigments are mainly prepared by drying the pigment filter cake. It is made after pulverization, the pigment particles are easy to aggregate during the drying process, resulting in a wide particle distribution, the formed large particle pigment is not easy to disperse, the color is dark, and the dust pollution is serious during use and transportation. Therefore, it is necessary to develop a water-based pigment. solid predispersed pigment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, the preparation technology of aqueous solid predispersed pigment comprises the following concrete steps:

[0022] A. mix

[0023] Each component in the pre-dispersed pigment raw material is proportioned according to weight percentage, and its raw material includes 60% pigment, 5% auxiliary agent, 30% resin and 5% auxiliary material proportioned according to weight percentage, and the pigment According to the color requirements, choose from organic pigments, inorganic pigment carbon black and inorganic pigment titanium dioxide in various colors, and choose one or more than one mixture. Organic pigments in various colors include yellow, orange, red, purple, blue, green, There are eight color systems of brown and black. The auxiliary agent is a mixture of N,N-dimethylpropylenediamine and dispersant NNO. The auxiliary material is sodium sulfate. The raw materials are put into a mixing tank for stirring, stirring The time is 30 minutes, the stirring speed is 8...

Embodiment 2

[0030] Example 2, as another embodiment, the raw materials for preparing the pre-dispersed pigment include 70% of pigment, 3% of auxiliary agent, 20% of resin and 7% of auxiliary material in proportion by weight.

Embodiment 3

[0031] Example 3, as another embodiment, the raw materials for preparing the pre-dispersed pigment include 80% pigment, 6% auxiliary agent, 10% resin and 4% auxiliary material in proportion by weight.

[0032] The preparation process of the present invention is simple and efficient, and the prepared water-based solid pre-dispersed pigment has relatively high polarity, good wettability, dispersibility and stability, and the pigment has no dust flying and accurate measurement during transportation and use , convenient to transport and use, and the pigment has no shelf life limit, avoiding waste, and can be widely used in environmentally friendly water-based paint, water-based ink, pesticides, compound fertilizers and seeds and other industries.

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Abstract

The invention relates to a waterborne solid predispersed pigment and a preparation process thereof, belonging to the technical field of pigment production. The predispersed pigment comprises the following raw materials in percentages by weight: 50% to 90% of a pigment, 2% to 15% of an auxiliary agent, 0% to 40% of resin and 3% to 10% of an auxiliary material, wherein the pigment is a mixture of one or more selected from the group consisting of various organic pigments, inorganic pigment carbon black and inorganic pigment titanium dioxide; the auxiliary agent is a mixture of one or more selected from the group consisting of triethanolamine, quaternary ammonium salt, N,N-dimethyl propylene diamine, and dispersants like NNO, FM, BYK190 and BYK192; the resin is a mixture of two or more selected from the group consisting of waterborne acrylic acid, waterborne alcohol acid, acrylate and polyether; and the auxiliary material is a mixture of one or more selected from the group consisting of calcium carbonate, kaolin and sodium sulfate. The preparation process comprises the following steps: subjecting the above-mentioned raw materials to mixing and stirring, and carrying out grinding and spray drying so as to obtain a waterborne solid predispersed pigment product. The waterborne solid predispersed pigment product has the advantages of good wettability, dispersibility and stability, no dust pollution, and accurate measurement.

Description

technical field [0001] The invention belongs to the technical field of pigment production, and in particular relates to a water-based solid pre-dispersed pigment and a preparation process thereof. Background technique [0002] Most of the existing pigments are dry powder pigments, which are mixed and stirred with the processed materials during use. In order to achieve a better coloring effect, the mixing and stirring time is generally longer. The dry powder pigments are mainly prepared by drying the pigment filter cake. It is made after pulverization, the pigment particles are easy to aggregate during the drying process, resulting in a wide particle distribution, the formed large particle pigment is not easy to disperse, the color is dark, and the dust pollution is serious during use and transportation. Therefore, it is necessary to develop a water-based pigment. Solid predispersed pigments. Contents of the invention [0003] The invention overcomes the shortcomings of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/20C09C1/36C09C1/56C09C3/06C09C3/08C09C3/10
CPCC09B67/0061C09C1/3692C09C1/56C09C3/006C09C3/06C09C3/08C09C3/10
Inventor 李庆豹郑进峰王西元
Owner 美利达颜料工业有限公司
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