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Preparation method of water-based self-dispersion nano organic pigment powder

A nano-organic and organic pigment technology, which is applied in the fields of fine chemicals and materials science, can solve the problems of wide particle size distribution of modified pigments, large pigment particle size, and absence of nanomaterials.

Inactive Publication Date: 2014-11-12
KUNSHAN YIJIAJU TEXTILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although there are some examples about the preparation of self-dispersing pigment powders, the modified pigments prepared by them have a wide particle size distribution, and the pigment particle size is relatively large, which is not within the scope of nanomaterials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Weigh 8 kg of styrene-acrylic acid copolymer and dissolve it in 200 kg of ethanol, stir with a stirrer for 15 minutes, after the copolymer is completely dissolved, add 40 kg of C.I. Pigment Yellow 74, and disperse on a high-speed disperser for 2 hours. Spray-dry the dispersed suspension with a spray dryer, grind the dried pigment powder with a colloid mill or a pulverizer, and filter it with a 200-mesh filter, and then place the powder in a discharge power density of 0.10w / cm 2 The water-based self-dispersing nano-organic pigment powder can be obtained by treating for 4 minutes in a normal-pressure plasma environment.

Embodiment 2

[0017] Weigh 3kg of acrylic acid-methyl methacrylate copolymer and dissolve it in 200kg of butanone, stir with a stirrer for 30min, after the copolymer is completely dissolved, add 30kg of C.I. Pigment Blue 15:3, and disperse on a high-speed disperser for 5h. Spray-dry the dispersed suspension with a spray dryer, grind the dried pigment powder with a colloid mill or a pulverizer, and filter it with a 200-mesh filter, and then place the powder in a discharge power density of 0.24w / cm 2 The water-based self-dispersing nano-organic pigment powder can be obtained by treating for 3 minutes in a normal-pressure plasma environment.

Embodiment 3

[0019] Weigh 10kg of acrylic acid-acrylonitrile-styrene copolymer and dissolve it in 300kg of cyclohexane, stir with a stirrer for 20min, after the copolymer is completely dissolved, add 50kg of C.I. Pigment Red 122, and disperse on a high-speed disperser for 1h . Spray-dry the dispersed suspension with a spray dryer, grind the dried pigment powder with a colloid mill or a pulverizer, and filter it with a 200-mesh filter, and then place the powder in a discharge power density of 0.32w / cm 2 Water-based self-dispersing nano-organic pigment powder can be obtained by treating for 1.5 minutes in a normal-pressure plasma environment.

[0020] Table 1 prepared water-based nano-pigment color paste performance index

[0021] self-dispersing pigment

[0022] Note: 1) The particle size is measured by Nanosizer ZS90 (Malvern Instruments Ltd); the pigment content accounts for 20% of the dispersion system.

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PUM

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Abstract

The invention relates to a preparation method of water-based self-dispersion nano organic pigment powder, belonging to the fields of fine chemical engineering and material science. The polymer containing hydrophilic and hydrophobic chains is used in the preparation method, the organic pigment is coated and modified by a spray drying method, and the coated organic pigment has excellent self-dispersion performance in water phase. The method is applicable to surface coating of various organic pigments and has the characteristics of low investment, simple production process, stable product quality and suitability for large-scale production, etc.

Description

technical field [0001] The invention discloses a preparation method of water-based self-dispersing nanometer organic pigment powder. The self-dispersing nanometer organic pigment powder prepared by using the invention has the advantages of simple production process, small equipment investment, stable product quality, low transportation cost, etc., and belongs to the fields of fine chemical industry and material science. Background technique [0002] Pigment is the main coloring substance in nature. It has the characteristics of high light fastness, weather fastness and solvent resistance, and bright and bright color. It has been widely used in textiles, papermaking, construction, food, plastics, metal spraying and other fields. . However, commercialized pigments mainly exist in the form of aggregates, aggregates or flocs, and the particles are coarse and unevenly distributed, resulting in low pigment coloring power and can not play their coloring effect well. Therefore, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/08C09C1/56C09C3/10
Inventor 付少海张桂芳关玉田安丽王潮霞
Owner KUNSHAN YIJIAJU TEXTILE CO LTD
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