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Novel cadmium-free red ceramic pigment color agent

A technology for ceramic pigments and cadmium red, applied in the field of new cadmium-free red ceramic pigments, can solve the problems of easy decomposition, inability to use ceramic pigments, harm to people's health, etc.

Inactive Publication Date: 2008-09-03
山东省硅酸盐研究设计院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For a long time, cadmium-based pigments have been widely used because of their bright red color. However, cadmium-containing pigments will cause serious pollution to the environment during production and use, and cause serious harm to people's health. Therefore, cadmium-containing pigments Alternative research has aroused widespread attention in various countries
Rhodia company in France has successfully developed rare earth sulfide red pigments. The color tone is very close to cadmium-based red pigments. It has been used in paints and is a good substitute for cadmium-based red pigments. It is expected to be used in plastics, rubber, inks and other products. It can be applied, but the temperature resistance of rare earth sulfide red pigments is low, only 350 ° C, and it is easy to decompose in an oxidizing atmosphere, so it cannot be applied in ceramic pigments
The research on the replacement of cadmium red pigment in ceramic pigments has long been considered a big problem, and the research progress in this area is slow

Method used

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  • Novel cadmium-free red ceramic pigment color agent
  • Novel cadmium-free red ceramic pigment color agent
  • Novel cadmium-free red ceramic pigment color agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The composition of the novel cadmium-free red ceramic pigment toner of the present invention is shown in Table 1.

[0014] Table 1, the present invention's novel cadmium-free red ceramic pigment toner ingredient percentage composition table

[0015]

[0016] Preparation method: After ball milling, mixing, drying and crushing the ingredients in sequence, firing at 1450±20°C, heat preservation for 3 hours, natural cooling, rinsing, drying, ball milling, drying and crushing to obtain the finished product.

Embodiment 2

[0018] The composition of the novel cadmium-free red ceramic pigment toner of the present invention is shown in Table 2.

[0019] Table 2, the present invention's novel cadmium-free red ceramic pigment toner ingredient percentage composition table

[0020]

[0021] Preparation method: after ball milling, mixing, drying and crushing the ingredients in sequence, firing at 1440±20°C, heat preservation for 4.5h, natural cooling, then rinsing, drying, ball milling, drying and crushing to get the finished product .

Embodiment 3

[0023] The composition of the novel cadmium-free red ceramic pigment toner of the present invention is shown in Table 3.

[0024] Table 3, the present invention's novel cadmium-free red ceramic pigment toner ingredient percentage composition table

[0025]

[0026] Preparation method: after ball milling, mixing, drying and crushing the ingredients in sequence, firing at 1460±20°C, heat preservation for 3.5h, natural cooling, rinsing, drying, ball milling, drying and crushing to get the finished product .

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Abstract

The invention relates to a novel cadmium-free red ceramic paint color, which belongs to the technology field of decorative ceramic materials and the ingredient mol percentage are as follows: 75-98 per cent CeO2, 1-15 per cent Pr6O11 and 1-10 per cent rare earth oxide and the weight percentage of mineralization agent is 2-5 per cent, wherein the rare earth oxide are one of Nd2O3, La2O3, Er2O3 and Sm2O3 and the mineralization agents are two or three of CaF2, NaF, KF, LiF, MgF2 and BaF2 mixing at any proportion. The paint color is used to producing cadmium-free red ceramic paint, which is good in color and has a using temperature of 800-1200 DEG C, which can meet the requirements of high temperature using.

Description

technical field [0001] The invention relates to a novel cadmium-free red ceramic pigment toner, which belongs to the technical field of ceramic decoration materials. Background technique [0002] For a long time, cadmium-based pigments have been widely used because of their bright red color. However, cadmium-containing pigments will cause serious pollution to the environment during production and use, and cause serious harm to people's health. Therefore, cadmium-containing pigments Alternative research has attracted extensive attention from various countries. Rhodia company in France has successfully developed rare earth sulfide red pigments. The color tone is very close to cadmium-based red pigments. It has been used in paints and is a good substitute for cadmium-based red pigments. It is expected to be used in plastics, rubber, inks and other products. It can be applied, but the temperature resistance of the rare earth sulfide red pigment is low, only 350 ° C, and it is e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/85
Inventor 桑爱美殷书建孙立香樊震坤
Owner 山东省硅酸盐研究设计院
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