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Special luminous pearlescent pigment for ceramic firing

A technology of pearlescent pigments and ceramics, which is applied in the field of ceramic firing pigments. It can solve the problems of difficult control and industrialization, low brightness and saturation, and long reaction time, so as to achieve products with good brightness, good color saturation, and glaze. excellent surface quality

Inactive Publication Date: 2014-06-11
许志永
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the current research on pearlescent pigments for ceramic firing in my country still cannot meet the market demand. Most of the high-end products need to be imported from abroad, and the price is very expensive.
In particular, the preparation method is cumbersome, the steps are many, the reaction process takes a long time, and it is not easy to control and realize industrialization; the interference effect between the layers of the finished pigment product is weak, and there are low brightness and saturation. , easy to fade and other deficiencies

Method used

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  • Special luminous pearlescent pigment for ceramic firing

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Embodiment

[0013] Example: This embodiment provides a special luminous pearlescent pigment for ceramic firing, which includes a sheet-like substrate 1 coated with a layer of high refractive index coating 2, and the high refractive index coating is coated with a layer of colored pigment. Agent 3, forming a metal oxide composite coating layer.

[0014] The coloring agent is ferric oxide or other metal oxides.

[0015] The sheet-like base material is a synthetic mica composed of long-lasting luminescent material and basic flux.

[0016] In the specific implementation process, at a temperature of 70°C-80°C, the stirring of the substrate suspension is kept, the pH value of the reaction is stable, and the surface of the substrate is coated with titanium dioxide and ferric oxide in sequence. After the reaction is completed, filter and use Ionized water washing, drying, calcination and other processes can obtain the special luminous pearlescent pigment for ceramic firing.

[0017] The lumino...

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Abstract

The invention discloses a special luminous pearlescent pigment for ceramic firing. The pigment is characterized in that the pigment comprises a sheet substrate, the substrate is coated with a high-refractive-index coat, and the high-refractive-index coat is coated with a layer of a coloring agent to form a metal oxide composite coat. The coloring agent is ferric oxide. The sheet substrate is synthetic mica composed of a long-afterglow luminous material and a base flux. The special luminous pearlescent pigment is optically variable, and has the advantages of good brightness and color saturation, high brightness, intelligible pattern, color variety, excellent glaze quality, strong mechanical performances, and high chemical stability; and the coating of the inorganic metal oxide-ferric oxide makes the pigment have a high stability and not fade under high temperature firing conditions.

Description

technical field [0001] The invention relates to a ceramic firing pigment, in particular to a special luminescent pearlescent pigment for ceramic firing. Background technique [0002] Pearlescent pigments are non-toxic, odorless, acid and alkali resistant, non-flammable, non-explosive, non-conductive, non-migrating, easy to disperse, and have high heat resistance and weather resistance. They are ideal ceramic firing pigments. It has the shimmering effect of metallic pigments and produces the soft shades of natural pearls. The excellent performance of pearlescent pigments makes it a new idea in today's color field and has higher commodity value. Pearlescent pigments are widely used in architectural coatings, rubber, ceramics and other industries. [0003] However, the current research on pearlescent pigments for ceramic firing in my country still cannot meet the market demand. Most of the high-end products need to be imported from abroad, and the price is very expensive. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B41/86
Inventor 许志永
Owner 许志永
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