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Preparation method of high-coating-ratio zirconium silicate coated ceramic pigment and product prepared therethrough

A ceramic pigment, zirconium silicate technology, applied in chemical instruments and methods, fibrous fillers, inorganic pigment treatment, etc., can solve the problems of blocking color development, loss of color development contribution, limiting the application of zirconium silicate, etc. The effect of wrapping rate and improving hair color strength

Active Publication Date: 2016-06-15
JINGDEZHEN CERAMIC INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to improve the encapsulation rate, this structure requires a higher content of zirconium silicate, resulting in the zirconium silicate encapsulation layer being too thick and blocking the hair color of the encapsulation
Moreover, because the wrapping layer is too thick, the wrapped object at the center loses its contribution to the color development of the wrapped color material, which greatly affects the color development intensity of the wrapped object
In addition, the preparation methods of existing zirconium silicate coated pigments are generally only suitable for specific coated objects, such as cadmium sulfoselenide or carbon black, which limits the application of zirconium silicate as a coating material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this embodiment, a method for preparing a high-encapsulation rate zirconium silicate-encapsulated ceramic pigment, the steps are as follows:

[0029] (1) Preparation of suspension

[0030] Adding 6g of carbon black to 300g of ZrCl with a concentration of 30wt% 4 In the ethanol solution, add 2g of 10wt% CTAB ethanol solution to promote the dispersion of carbon black, and stir to obtain a suspension;

[0031] (2) Preparation of zirconium coating

[0032] Put the suspension in an oven at 60°C to volatilize ethanol until it is completely dry to obtain a primary powder; then put the primary powder and excess concentrated ammonia water into two containers respectively, and then put the two containers into an upside-down button at the same time In an airtight plastic container, leave it to stand for reaction for 12 hours to obtain a jelly-like substance coated with a zirconium hydroxide coating on the surface of carbon black;

[0033] (3) Preparation of silicic acid coat...

Embodiment 2

[0039] In this example, a method for preparing a high-encapsulation rate zirconium silicate-encapsulated ceramic pigment differs from Example 1 in that in step (2), the suspension is placed in a vacuum drying oven, and ethanol is volatilized at a temperature of 30°C , to obtain a powder after complete drying, and then feed 10vol% NH 3 -N 2 , Let stand for 12h.

[0040] The zirconium silicate wrapped carbon black material obtained in this example has a wrapping rate of 93%, and the chromaticity is: L*=24.85, a*=-0.54, b*=-1.43.

Embodiment 3

[0042] In this embodiment, a method for preparing a high-encapsulation rate zirconium silicate-encapsulated ceramic pigment, the steps are as follows:

[0043] (1) Preparation of suspension

[0044] Adding 10 grams of cadmium sulfur selenide to 50 g of ZrCl with a concentration of 30 wt % 4 In the ethanol solution, add 1g10wt% CTAB ethanol solution to promote the dispersion of cadmium sulfoselenide, and obtain a suspension after ultrasonication and stirring;

[0045] (2) Preparation of zirconium coating

[0046]Put the suspension in a 60°C oven to volatilize the ethanol until it is completely dry to obtain a primary powder; then put the primary powder and concentrated ammonia water into two containers respectively, and then put the two containers into an upside-down container at the same time , in an airtight plastic container, leave it to stand for 12 hours to react, and obtain a jelly-like substance coated with a zirconium hydroxide coating layer on the surface of cadmium ...

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PUM

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Abstract

The invention discloses a preparation method of a high-coating-ratio zirconium silicate coated ceramic pigment. The preparation method includes the steps of: dispersing and wetting a to-be-coated substance in a zirconium tetrachloride ethanol solution to prepare a suspension liquid, and volatilizing the ethanol and drying the liquid, and performing a reaction with ammonia gas to form a zirconium hydroxide coating layer on the surface of the to-be-coated substance; mixing the to-be-coated substance with a silicon source solution, and performing gelatination / precipitation to form a silicic acid coating layer on the surface of the zirconium hydroxide coating layer; and drying the substance, mixing the substance with a mineralizing agent and calcining the substance to form the zirconium silicate coated ceramic pigment. The invention also discloses a product prepared through the method. In the invention, a core-shell structure with the to-be-coated substance as a core and the zirconium silicate as a coating layer is formed, so that the coating ratio and the coloring intensity of the coated substance are significantly increased. Meanwhile, applicability of the zirconium silicate as a coating layer material is developed, so that application and development of the zirconium silicate coating ceramic pigment are effectively promoted.

Description

technical field [0001] The invention relates to the technical field of ceramic pigments, in particular to a method for preparing zirconium silicate-wrapped ceramic pigments and a product thereof. Background technique [0002] Zirconium silicate ZrSiO 4 With the characteristics of high melting point, high refractive index, stable chemical properties, and high temperature melt resistance, it has become the preferred coating material for ceramic pigments. 2 o 3 Good application effect has been achieved on the color material. However, at present, the encapsulation rate of zirconium silicate-encapsulated ceramic pigments still generally has a problem of low encapsulation rate. 8~11%, unwrapped cadmium sulfoselenide can only be removed by pickling, which not only causes great waste, but also pollutes the environment; similarly, due to the low wrapping rate, zirconium silicate wrapped carbon black can only It is gray (color lightness value L*>30), which greatly restricts its...

Claims

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Application Information

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IPC IPC(8): C09C3/06C09C1/48C09C1/12
CPCC01P2006/62C01P2006/63C01P2006/64C01P2006/65C09C1/0012C09C1/12C09C1/48C09C3/063
Inventor 常启兵汪永清汪其堃王霞周健儿杨柯
Owner JINGDEZHEN CERAMIC INSTITUTE
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