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Water-based color paste and preparation method thereof

A water-based color paste and color paste technology, which is applied in the fields of dyeing, pigment paste, textiles, and papermaking, can solve the problems of time-consuming, laborious, and poor environmental protection performance, achieve environmental protection dispersion performance, and reduce grinding and dispersion time. Effect

Inactive Publication Date: 2010-09-29
LIWANG CHEM NANTONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when preparing color paste, it is necessary to grind and disperse the components for a long time, which is time-consuming and laborious, and the dispersion performance of the finished product is not good enough, and the environmental protection performance is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0028] A preparation method for water-based color paste, comprising the following steps:

[0029] A. Preparation of high-efficiency dispersant: Add 30% fatty alcohol polyoxyethylene ether into the reaction kettle, then add 50% water to the reaction kettle, raise the temperature to 80-100 degrees to dissolve, and wait for the reaction kettle to dissolve. After the substance is completely dissolved, add 10% triethanolamine, fully stir the mixture for 30 minutes at a speed of 200 rpm, then cool down to 45-55 degrees, add 10% acrylic acid solution, continue stirring for 30 minutes, and finally lower to room temperature, High-efficiency dispersant can be discharged;

[0030] B. Preparation of water-based color paste: add 20-22% high-efficiency dispersant, 41-45% water, 35-45% organic pigment, and 0.15-0.25% preservative obtained above into the disperser for low-speed dispersion at 150 rpm / min, the dispersion time is 10 minutes, after all the ingredients are fully wetted, then hig...

Embodiment 1

[0031] Embodiment 1: A, preparation of high-efficiency dispersant: 63 kilograms of fatty alcohol polyoxyethylene ethers are added in the reactor, and then 105 kilograms of water are added in the reactor, and the temperature is raised to 80-100 degrees for dissolving, etc. After the material in the reaction kettle is completely dissolved, add 21 kg of triethanolamine, fully stir the mixture for 30 minutes at a speed of 200 rpm, then lower the temperature by 45-55 degrees, add 21 kg of acrylic acid solution, continue stirring for 30 minutes, and finally As low as room temperature, the high-efficiency dispersant can be discharged; B. Preparation of water-based color paste: add 210 kg of high-efficiency dispersant, 440 kg of water, 350-450 kg of organic pigments, and 2 kg of preservative to the disperser for low-speed dispersion. The speed is 150 rpm, and the dispersion time is 10 minutes. After all the ingredients are fully wetted, the high-speed dispersion is carried out. The rot...

Embodiment 2

[0032] Embodiment two: A, preparation of high-efficiency dispersant: 126 kilograms of fatty alcohol polyoxyethylene ethers are added in the reactor, and then 210 kilograms of water are added in the reactor, and the temperature is raised to 80-100 degrees for dissolution, etc. After the material in the reaction kettle is completely dissolved, add 42 kg of triethanolamine, fully stir the mixture for 30 minutes at a speed of 200 rpm, then lower the temperature by 45-55 degrees, add 42 kg of acrylic acid solution, continue stirring for 30 minutes, and finally As low as room temperature, the high-efficiency dispersant can be discharged; B. Preparation of water-based color paste: 420 kg of high-efficiency dispersant, 840 kg of water, 720 kg of organic pigments, and 5 kg of preservatives are added to the disperser for low-speed dispersion at a speed of 150 Turn / min, the dispersion time is 10 minutes, after all the ingredients are fully wetted, then carry out high-speed dispersion, the...

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Abstract

The invention discloses a water-based color paste and a preparation method thereof. The water-based color paste comprises a dispersant, water, an organic pigment and a preservative. The preparation method of the water-based color paste comprises the following steps: firstly, preparing a high-efficiency dispersant; adding 20-22% of high-efficiency dispersant, 41-45% of water, 35-45% of organic pigment and 0.15-0.25% of preservative into a dispersion machine; dispersing at low speed for 10 minutes; after all components are fully wetted, dispersing at high speed for 30 minutes; mixing all components into slurry; after dispersing, injecting the slurry into a horizontal sand mill for milling for 8-16 hours at the temperature lower than 20 DEG C to obtain the water-based color paste; then, filtering the color paste, and discharging the filtered color paste; and finally, detecting the discharged color paste. The invention has the advantages of simple preparation method, safety and environmental protection, shortens the reaction time, improves the production efficiency, and ensures the dispersibility of products.

Description

Technical field: [0001] The invention relates to a water-based color paste and a preparation method thereof. The water-based color paste is in a liquid state and is packed in barrels, which is convenient for transportation and is suitable for exterior wall paint, latex paint, printing and dyeing and other industries. Background technique: [0002] As a colorant, color paste is an important part of paint, which determines the appearance performance, partial fastness performance and environmental protection performance of printing. With the development of science and technology, the requirements for colorants are getting higher and higher, among which dispersant is an important component. It is a surfactant with two opposite properties of lipophilicity and hydrophilicity in the molecule. It can uniformly disperse the solid particles of inorganic and organic pigments that are difficult to dissolve in liquid, and at the same time prevent the sedimentation and aggregation of soli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D17/00D06P1/613
Inventor 郁金华张晓明
Owner LIWANG CHEM NANTONG
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