A lead-free low-cadmium stripping quantity selenium-cadmium dye, a preparation method and a using method thereof

A pigment and weight technology, applied in the direction of inorganic pigment treatment, chemical instruments and methods, fibrous fillers, etc., can solve the problems of lack of color rendering, high product price, lack of market competitiveness, etc., to achieve pure and rich color, good market Competitive, low price effect

Active Publication Date: 2009-03-04
山东省淄博市博山长虹陶瓷装饰材料厂
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  • Abstract
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Problems solved by technology

[0002] On-glaze ceramic pigments endow ceramic products with a beautiful appearance. The over-glaze color is used at a low temperature of 750-850°C, so 30-50% lead oxide needs to be added in the traditional production process to make the roasting temperature range of the ceramic over-glaze pigment It is wide and pure in color. It is confirmed by data that "lead acetate and lead compounds are potential carcinogens". For this reason, the scientific research and production institutions of the ceramic industry at home and abroad have been making unremitting efforts. British patent CB2250285A and Chinese patent CN1044595C Both provide a lead-free and cadmium-free overglaze ceramic pigment, which avoids the poisonous effect of lead and cadmium. Then, the unique and brilliant color formed by CdO with special color will no longer exist, making the color of the pigment There are vacancies, and the two technologies are widely used due to the expensive Bi 2 o 3 , so that the product price is too high and lacks market competitiveness, which will cause defects in the complete replacement of traditional lead-cadmium pigments by lead-free and cadmium-free ceramic pigments

Method used

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  • A lead-free low-cadmium stripping quantity selenium-cadmium dye, a preparation method and a using method thereof

Examples

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preparation example Construction

[0019] The method for preparing lead-free and low-cadmium selenium-cadmium pigments in the examples is to prepare flux and then pigments according to the composition ingredients. The following steps are:

[0020] ① Preparation of flux: mix the raw materials needed for the solvent uniformly according to the proportion, pass through a 100 mesh sieve, quench with molten water at a temperature of 1280±10℃, and dry for use;

[0021] ②Ball milling: ball mill the flux and the corresponding purchased toner until the particle size is less than 10 microns, and then dry out the mill for use;

[0022] ③Re-burning: re-burning and water-quenching the ball-milled mixture at 800±30℃;

[0023] ④Secondary grinding: Put the re-fired water quenched material into a ball mill for wet grinding until the particle size is less than 5 microns, and then grind, dry, and crush to obtain pigment products.

[0024] The method of use is basically the same as the usual pigments, except that after applying decorat...

Embodiment 9

[0036] The preparation method of the pigment, the steps are as follows:

[0037] ① Preparation of flux: mix the raw materials needed for the solvent uniformly according to the proportion, pass through an 80-mesh sieve, and quench with molten water at a temperature of 1300±30℃;

[0038] ②Ball milling: ball mill the flux and toner mixture until the particle size is less than 10 microns, and dry out the mill for use;

[0039] ③Re-burning: re-burning and water-quenching the ball-milled mixture at a temperature of 760±10℃;

[0040] ④Secondary grinding: Put the re-fired water quenched material into a ball mill for wet grinding until the particle size is less than 5 microns, and then grind, dry, and crush to obtain pigment products.

[0041] The ingredient weight of the dark emerald green pigment is divided into 100 groups:

[0042] 1# flux 85%, green agent 10% and cadmium yellow 5%;

[0043] Among them, the green agent ingredients are divided into 100% by weight: CoO 25%, chromium oxide...

Embodiment 10

[0045] The preparation method of the pigment, the steps are as follows:

[0046] ① Preparation of flux: mix the raw materials required for the solvent uniformly according to the proportion, pass through a 90-mesh sieve, and quench with molten water at a temperature of 1280±20℃;

[0047] ②Ball milling: ball mill the flux and toner mixture until the particle size is less than 10 microns, and dry out the mill for use;

[0048] ③Re-burning: re-burning and water-quenching the ball-milled mixture at a temperature of 820±10℃;

[0049] ④Secondary grinding: Put the re-fired water quenched material into a ball mill for wet grinding until the particle size is less than 5 microns, and then grind, dry, and crush to obtain pigment products.

[0050] The ingredients of the bamboo green pigment are divided into 100 groups by weight:

[0051] 3# flux 78%, green agent 8% and cadmium yellow 14%;

[0052] Among them, the green agent ingredients are divided into 100% by weight: CoO 35%, chromium oxide...

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Abstract

The invention relates to a Selenium-Cadmium type pigment without lead and with a low Cadmium release, which is composed of 70-88 wt.% of flux and 12-30 wt.% of toner. The components dosage of the flux material by weight is: SiO2 45-65%, B2O3 10-35%, Al2O3 3-15%, K2O 2-10%, Na2O 2-10%, Li2O 0-10%, SnO2 0-5%, ZrO2 0-5%, TiO2 0-5%, CaO 0-10%, ZnO 0-3%, MgO 0-3%, La2O3 0-1%. The invention avoids or relieves the poisonous effects of the poisonous components, eradicates the poison of lead, reduces the the Cadmium poison down to the degree which can be neglected by human body. It has a low price, a rich color, maintains and expands the CdO florid color to make decoration of the ceram product more colorful and can be used for screen print, offset printing, spray decoration, hand-drawing and etc.

Description

Technical field [0001] The invention relates to a selenium-cadmium pigment with a lead-free and low cadmium dissolution amount, and provides a preparation method and a use method thereof. Background technique [0002] The on-glaze ceramic pigments give ceramic products a beautiful appearance. The on-glaze color is used at a low temperature of 750-850°C. Therefore, 30-50% of lead oxide needs to be added in the traditional production process to make the ceramic on-glaze pigment barbecue temperature range It is wide, and the hair color is pure. There are data confirming that "lead acetate and lead compounds are potential carcinogens." For this reason, scientific research and production institutions in the ceramic industry at home and abroad have been making unremitting efforts. British patent CB2250285A and Chinese patent CN1044595C Both provide a lead-free and cadmium-free on-glaze ceramic pigment, which avoids the toxic effects of lead and cadmium, and subsequently, the unique and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/00C09C3/00C04B41/00C04B103/54
Inventor 任明祥陈克玲孙元清
Owner 山东省淄博市博山长虹陶瓷装饰材料厂
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