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Aqueous transparent pigment dispersion and preparation method thereof

A transparent pigment and dispersion technology, applied in the direction of pigment slurry, etc., can solve the problems of high oil absorption, large specific surface area of ​​transparent pigments, etc., and achieve the effect of strong coloring performance, low overall cost of coloring, and bright colors

Active Publication Date: 2012-08-08
SUZHOU SUNMUN TECH CO LTD
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Problems solved by technology

Transparent pigments have large specific surface area, high oil absorption and are difficult to disperse. Preparation of transparent color paste has become a major problem in the field of coatings.

Method used

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  • Aqueous transparent pigment dispersion and preparation method thereof

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Embodiment Construction

[0028] The formula of the embodiment of the invention is referring to Table 1:

[0029] Table 1: (unit: weight percentage)

[0030]

[0031] According to above-mentioned prescription, preparation method carries out as follows:

[0032] ①.Reserve 10% deionized water, add 90% deionized water and 1.5%~5.0% multiplier into the mixer and stir evenly, then add 12.0%~22.0% wetting and dispersing agent at 500~800r / min Rotate to disperse for 15 to 25 minutes to obtain the first mixed solution;

[0033] ②. Add 6.0% to 15.0% functional additives and 0.2% to 0.5% pH regulator into the first mixed solution obtained in step ① and mix evenly to obtain the second mixed solution;

[0034] ③ Add all the selected 1 to 3 kinds of 30.0% to 45.0% transparent pigments to the second mixed solution obtained in step ②, and fully stir to obtain a transparent pigment pre-dispersion;

[0035] ④. Disperse the transparent pigment pre-dispersion obtained in step ③ at a speed of 2000-3000r / min at a high...

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Abstract

The invention discloses aqueous transparent pigment dispersion, which consists of the following raw materials in percentage by weight: 30.0 to 45.0 percent of transparent pigment, 12.0 to 22.0 percent of wetting dispersant, 1.5 to 5.0 percent of multiplying agent, 0.2 to 0.5 percent of ph value regulator, 6.0 to 15.0 percent of functional additive, and deionized water. A preparation method comprises the following steps: mixing and polishing all components; and then performing quality test, vacuum defoamation and filtering and packaging on the mixture to obtain the required transparent pigmentdispersion. The particle diameter D50 of the obtained transparent pigment dispersion is less than or equal to 0.50 mu m and D99 thereof is less than or equal to 2.0 mu m; and the transparent pigment dispersion has the advantages of good condition of dispersibility, difficult flocculation, long-term storage at room temperature, simple preparation procedure and easy industrialized production.

Description

technical field [0001] The invention relates to the field of coating and pigment slurry, in particular to a water-based transparent pigment dispersion and a preparation method thereof. Background technique [0002] For a long time, oil-based wood lacquers have been used for a long time due to their excellent properties such as appearance, feel, hardness, yellowing resistance, fullness of color and smoothness. But in recent years, with the enhancement of people's awareness of environmental protection, water-based wood lacquer has attracted more and more attention from consumers, and the technology of water-based wood lacquer has been greatly improved, which can basically meet the requirements of home decoration. In the United States and the European Union, the production of oil-based wood lacquers has long been banned, and the utilization rate of water-based wood lacquers has reached 80% to 90%. The Chinese market is in line with international standards. Water-based wood lacq...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
Inventor 杜长森万强周华伍金平毕其兵许丹
Owner SUZHOU SUNMUN TECH CO LTD
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