Water-base inorganic pigment color paste and its preparing method

An inorganic pigment, water-based technology, applied in the direction of pigment paste, etc., can solve the problems of poor compatibility, floating color, coarse particles, etc., and achieve the effect of wide color stability and good storage stability.

Inactive Publication Date: 2007-06-27
SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a water-based inorganic pigment color paste and its preparation method. The color paste can solve the common problems of traditional inorganic color paste, suc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1、 Embodiment 2

[0046] Example 1, Example 2: The specific formula and preparation process and raw material manufacturers are as follows:

[0047]

[0048] Preparation process: reserve 5 parts of water, put the rest of the water, glycol, dispersant, defoamer, preservative, etc. into the dispersion tank at 500-600rpm / min, disperse for 10 minutes, put the pigment in 2500-3000rpm / after wetting min, disperse for at least 30 minutes, the pressure is controlled at 1.8~2kg / cm3, the temperature is controlled at 40~50℃, sanding is carried out, until the fineness is less than <20um, stop sanding, and dilute with reserved water to change the rheology The sex agent is slowly added to the color paste to thicken, dispersed at 2500~3000rpm / min for 20 minutes, the viscosity of STOMER is 80~90KU, and packaged.

[0049] The performance of the present invention is compared with that of the traditional formula. Comparative Examples 1 and 2 of the traditional formula use surface active dispersant combined ...

Embodiment 3

[0054] The preparation process is the same as in Example 1.

[0055] Store the produced paint in Example 3 and three comparative examples 3, 4, and 5 in Table 3 at room temperature and 50°C for a week, check its viscosity, fineness and state stability, and dilute it by 20 times and 100 times. Check the pigment particle distribution and association state under a microscope, and check whether there are flocculated particles. Comparative Examples 3, 4, and 5 are color pastes prepared by traditional techniques, Comparative Example 3 is a hydrophobic dispersant combined with a hydrating rheology modifier (HEC), and Comparative Example 4 is a common dispersant combined with an associative rheology modifier (HEUR), contrast

[0056] Example 5 is a common dispersant with a hydratable rheology modifier (HEC).

[0057] Table 3 Comparison of the storage stability of the formula of the present invention and the traditional formula (containing alcohol)

serial number

...

Embodiment 4 and Embodiment 5

[0064] Water

[0065] The preparation process is the same as in Example 1.

[0066] The coatings produced in Examples 4, 5 and the four comparative examples 6, 7, 8, 9 in Table 4 were stored at room temperature and at a high temperature of 50 degrees for one week, and their viscosity, fineness and state stability were tested and diluted by 20 times. , Check the pigment particle distribution and association state under a 100 times microscope, and check whether there are flocculated particles. Comparative Examples 6, 7, 8, 9 are color pastes prepared by traditional technology, Comparative Example 6 is a hydrophobic dispersant with a hydrating rheology modifier (HEC), and Comparative Example 7 is a common dispersant with an associative rheology modifier (HEUR), Comparative Example 8 is a common dispersant combined with an associated rheology modifier (HMPE), and Comparative Example 9 is a common dispersant combined with a hydratable rheology modifier (HEUR).

[0067] ...

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PUM

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Abstract

The water-base inorganic pigment color paste consists of water, dispersant, defoaming agent, wetting agent, antiseptic, inorganic pigment, pH regulator and rheologic modifier. The dispersant is polymer with surface activity, average molecular weight of 2000-5000 and hydrophobic group; the rheologic modifier is associated rheologic modifier of hydrophobic modifying polyurethane or polyether of average molecular weight 30,000-50,000. The present invention is superior to traditional color paste, and has excellent storage stability, color mixing stability, excellent compatibility, low thixotropy and high flowability.

Description

【Technical Field】 [0001] The invention relates to the field of coatings, in particular to water-based inorganic pigment color paste and a preparation method thereof. 【Background technique】 [0002] Pigments are generally divided into organic and inorganic pigments, and color pastes are divided into inorganic and organic color pastes. The coloring power and saturation of inorganic pigments are not as good as organic pigments, but they have good weather resistance and stable chemical properties. The colors range from yellow, red, green, blue, black, white, etc., such as iron black in the iron oxide series. Iron red, iron yellow, iron brown, etc., lead chrome yellow, titanium nickel yellow in the yellow series of pigments, and ultramarine blue in the blue series are widely used in the field of coatings and inks. [0003] Professional color pastes have many performance requirements, but good storage stability, wide compatibility, and stable color difference between batches are the mo...

Claims

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Application Information

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IPC IPC(8): C09D17/00
Inventor 陈素平何唯平
Owner SHENZHEN OCEAN POWER INDUSTRIAL CO LTD
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