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A kind of blue effect pigment and its preparation method and application

An effect pigment and blue technology, which is applied in the field of blue effect pigment and its preparation, can solve the problems of high temperature resistance and cannot use medium and high temperature ceramic products, etc., and achieves the effect of easy dispersion and large color effect.

Active Publication Date: 2016-05-11
SHANTOU LONGHUA PEARL LUSTRE PIGMENTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] So far, all these blue or blue two-color pigments are not resistant to high temperature (above 1000°C), and cannot be used in medium and high temperature ceramic products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of blue effect pigment, its preparation method is:

[0040] (1) Weigh 30 grams of blue interference color synthetic mica titanium pearlescent pigment with a particle size of 10-60 microns and put it into a reaction kettle with a volume of 2 liters, add 800 milliliters of deionized water, and stir to evenly disperse it into a suspension;

[0041] (2) Heat the suspension in a constant temperature water bath and stabilize it at 75°C, adjust the pH of the suspension to 7.50 with 16% dilute hydrochloric acid;

[0042] (3) Use a metering pump to add according to nCo 2+ :nAl 3+ =1:4 Configured CoCl 2 ·6H 2 O(0.25M) and AlCl 3 ·6H 2 239.1 milliliters of O (0.25M) mixed solution, simultaneously use 15% sodium hydroxide solution to regulate the pH of solution and make it constant at above-mentioned pH value, after adding, keep stirring at constant temperature for 15 minutes;

[0043] (4) Adjust the pH value of the suspension to 8.5 with 15% sodium hydroxide, and stir...

Embodiment 2

[0049] A kind of blue effect pigment, its preparation method is:

[0050] (1) Weigh 30 grams of yellow interference color synthetic mica titanium pearlescent pigment with a particle size of 10-60 microns and put it into a reaction kettle with a volume of 2 liters, add 800 milliliters of deionized water, and stir to evenly disperse it into a suspension;

[0051] (2) Heat the suspension in a constant temperature water bath and stabilize it at 75°C, adjust the pH of the suspension to 7.50 with 16% dilute hydrochloric acid;

[0052] (3) Use a metering pump to add according to nCo 2+ :nAl 3+ =1:3 Configured CoCl 2 ·6H 2 O(0.25M) and AlCl 3 ·6H 2 O (0.25M) mixed solution 1225mL, simultaneously use 15% sodium hydroxide solution to adjust the pH of the solution to make it constant at the above pH value, when the addition is complete, stir at constant temperature for 15 minutes.

[0053] (4) Adjust the pH value of the suspension to 8.5 with 15% sodium hydroxide, and stir for 15 m...

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PUM

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Abstract

The invention provides a blue effect pigment which comprises a compound layer coated on the surface of a base material and a carbon dioxide layer coated outside the compound layer. The pigment is cobalt blue in appearance and has good dispersity and double color effect. As the carbon dioxide layer and silicon dioxide balls with a certain grain size are coated on the outermost layer of the pigment, adhesion of the pigment during high temperature calcining can be prevented to ensure that particles exist in a dispersed state to the maximum extent, thereby facilitating dispersion of the pigment and exerting the color effect of the pigment as much as possible when the pigment is applied. Meanwhile, the pigment applied has a three-dimensional light scattering effect, so that the reflected light is more flexible. The pigment has high-temperature-resistance and weather-resistance, and can be widely applied to ceramic, plastic and coatings.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a blue effect pigment and its preparation method and application. Background technique [0002] The use of effect pigments in decoration has very good optical effects. One is to give the product a pearly luster. This phenomenon is produced by the multi-layered arrangement of pearlescent pigment layered translucent particles. It is the light that passes between the pigment and the substrate. The different interfaces between them, as well as the boundary layers of the effect pigment itself reflect and refract light multiple times and form the result of light interference. The second is the surprising color-dependent effect that makes the vision elusive. Therefore, this kind of pigment with special effect is often used to beautify the optical effect of articles, and is widely used in cosmetics, plastics, paints, leather and ceramics. [0003] Traditional two-color pigments are col...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/40C09C1/28C09C1/36C09C3/06C04B41/86
Inventor 付建生庄育麟张军礼
Owner SHANTOU LONGHUA PEARL LUSTRE PIGMENTS CO LTD