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Lead-free low-cadmium stripping quantity selenium-cadmium dye, preparing method and using method thereof

A pigment and weight technology, applied in inorganic pigment processing, chemical instruments and methods, fibrous fillers, etc., can solve the problems of color vacancy, high product price, lack of market competitiveness, etc., and achieve pure and rich color and good market. Competitive, low-cost effects

Active Publication Date: 2007-10-17
山东省淄博市博山长虹陶瓷装饰材料厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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preparation example Construction

[0019] The preparation method of lead-free and low-cadmium selenium-cadmium-based pigments in the embodiment is to prepare the flux first and then the pigment according to the composition ingredients, and the steps are as follows:

[0020] ①Preparation of flux: Mix the raw materials required for the solvent according to the proportion and evenly pass through a 100-mesh sieve, quench in molten water at a temperature of 1280±10°C, and dry for later use;

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

[0022] ③ Re-burning: the ball-milled mixture is re-fired and water-quenched at a temperature of 800±30°C;

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

[0024] The method of use is basically the...

Embodiment 9

[0033] The preparation method of pigment, successive steps are:

[0034] ①Preparation of flux: Mix the raw materials required for the solvent according to the proportion and evenly pass through an 80-mesh sieve, and quench in molten water at a temperature of 1300±30°C;

[0035] ②Ball milling: mix the flux and the colorant and ball mill until the particle size is less than 10 microns, and then dry it for later use;

[0036] ③ Re-burning: the ball-milled mixture is re-fired and water-quenched at a temperature of 760±10°C;

[0037] ④Secondary grinding: put the water-quenched material after reburning into a ball mill for wet grinding until the particle size is less than 5 microns, then grind, dry, and pulverize to obtain pigment products.

[0038] The batching weight percentage of deep emerald green pigment is composed of:

[0039] 1# flux 85%, green agent 10% and cadmium yellow 5%;

[0040] The weight percent of the green agent ingredients is: 25% CoO, 64% chromium oxide, 8% z...

Embodiment 10

[0042] The preparation method of pigment, successive steps are:

[0043] ①Preparation of flux: Mix the raw materials required for the solvent according to the proportion and evenly pass through a 90-mesh sieve, and quench in molten water at a temperature of 1280±20°C;

[0044] ②Ball milling: mix the flux and the colorant and ball mill until the particle size is less than 10 microns, and then dry it for later use;

[0045] ③ Re-burning: the ball-milled mixture is re-fired and water-quenched at a temperature of 820±10°C;

[0046] ④Secondary grinding: put the water-quenched material after reburning into a ball mill for wet grinding until the particle size is less than 5 microns, then grind, dry, and pulverize to obtain pigment products.

[0047] The batching weight percentage of bamboo green pigment is composed of:

[0048] 3# flux 78%, green agent 8% and cadmium yellow 14%;

[0049] The weight percent of green agent ingredients is: 35% of CoO, 50% of chromium oxide, 10% of zi...

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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 lead-free, low-cadmium selenium-cadmium pigment, and simultaneously provides a preparation method and a use method thereof. Background technique [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...

Claims

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Application Information

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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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