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Low-temperature coloring agent for glass decoration

A colorant, low-temperature technology, applied in the field of low-temperature colorants for glass decoration, can solve problems such as skin diseases, respiratory diseases and immune system diseases, slow dissolution of heavy metal ions, carcinogenicity, strong toxicity, etc., and achieve cost savings. , to achieve environmental protection, improve the effect of adsorption capacity

Active Publication Date: 2019-08-23
JIANGSU BAIFU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention patent with the application number CN201710886824.7 discloses a black colorant for low-temperature color glass and its preparation method and use method. The low-temperature colorant is prepared by compounding quartz powder, borax, sodium carbonate, coloring additives and other auxiliary raw materials, and The coloring additives used are one or more of cobalt oxide, nickel oxide, chromium oxide, and iron oxide. However, due to the carcinogenicity and toxicity of hexavalent chromium, it is easy to cause skin diseases, respiratory diseases and immune system diseases. Therefore, the prepared glass directly uses chromium oxide, so that the chromium in it is directly distributed in the glass and the glass surface. As the glass is used for a long time, the heavy metal ions in it will slowly dissolve after the glass is eroded, especially when the glass product is used. When preparing tableware, it is extremely harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The specific preparation process of loaded ferrochrome pigment is as follows:

[0020] Step 1: Add 160mL of ammonia water and 230mL of absolute ethanol into 100mL of water, mix well, add 15mLTEOS to it, then stir for 2-3 hours, then centrifuge to collect the precipitated product, and dry the collected precipitated product. Obtain nano-silica, then add 100g of nano-silica obtained in 1000g water, add 210g sodium hydroxide to it simultaneously, stir and react for 20-22h, then carry out centrifugation to obtain the precipitated product, and the precipitated product is washed with distilled water and no Washing with water and ethanol and then drying to obtain silica carrier powder;

[0021] Step 2: Add 100g of the silica carrier powder prepared in step 1 and 2Lg of absolute ethanol into the reaction vessel, continue to pump nitrogen into the reaction vessel for 30min, and then add 680g of 3-aminopropyltriethyl dropwise to the reaction vessel Oxysilane, after the dropwise a...

Embodiment 2

[0026] The specific preparation process of loaded ferrochrome pigment is as follows:

[0027] Step 1: Add 100g of nano-silica powder and 2Lg of absolute ethanol to the reaction vessel, continue to pump nitrogen into the reaction vessel for 30min, then add 680g of 3-aminopropyltriethoxysilane dropwise to the reaction vessel, drop After the addition is complete, stir and react at a constant temperature for 3-4 hours, then perform centrifugal precipitation, wash and dry to obtain aminated silica carrier powder;

[0028]Step 2: Prepare 50mL of potassium dichromate solution with a chromium ion concentration of 500mg / L, then add the aminated silica carrier powder prepared in step 1, and react with static shaking at room temperature for 3-4h, then filter and dry , and re-add the dried solid powder into the newly configured potassium dichromate solution with a chromium ion concentration of 500mg / L, statically shake the reaction for 3-4 hours at room temperature, then filter and dry ag...

Embodiment 3

[0032] The specific preparation process of loaded ferrochrome pigment is as follows:

[0033] Step 1: Prepare 50mL of potassium dichromate solution with a chromium ion concentration of 500mg / L, then add the silica carrier powder prepared in step 1 to it, perform static shaking reaction at room temperature for 3-4h, then filter and dry, and Add the dried solid powder to the newly configured potassium dichromate solution with a chromium ion concentration of 500 mg / L, and react with static shock at room temperature for 3-4 hours, then filter and dry again, and dry the dried powder again Adsorption, repeated adsorption 5 times, filtered and dried to obtain loaded chromium silica;

[0034] Step 2: Add 100g of the loaded chromium silica prepared in step 1 to 2L of water, add 100g of sodium hydroxide to it at the same time, then configure a ferric chloride solution with a concentration of 1mol / L, and add 24mL of the ferric chloride solution dropwise Add it into the reaction vessel, ...

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Abstract

The invention discloses a low-temperature coloring agent for glass decoration. The low-temperature coloring agent comprises the following components in parts by weight: 8-12 parts of silica, 13-14 parts of zinc oxide, 26-28 parts of borax, 15-18 parts of sodium carbonate, 0.81-0.83 part of talcum powder, 1.3-1.6 parts of aluminum oxide and 15-20 parts of a supported ferrochromium pigment. According to the low-temperature coloring agent, chromium ions are supported by a silica substrate material, meanwhile, the surface of the chromium ions is coated by a layer of ferric oxide, the prepared coloring agent is capable of achieving a dark red brown coloring effect, meanwhile, the chromium ions are directly fixed by the supported substrate material and the ferric oxide, heavy metals in glass canbe effectively prevented from slow dissolution because of erosion, and particularly the problem that great hurt of human bodies can be caused when a glass product is used as tableware can be solved.

Description

technical field [0001] The invention belongs to the field of colored glass preparation and relates to a low-temperature colorant for glass decoration. Background technique [0002] Colored glass can absorb, reflect and transmit light of different wavelengths to present different colors. It is used in various glass decorations. It is beautiful and gorgeous and is popular with the public. In the prior art, coloring is usually added during the glass preparation process Through the melting and mixing of colorants and glass raw materials, the prepared glass has the color of the colorants, and then gives the glass different colors. [0003] The invention patent with the application number CN201710886824.7 discloses a black colorant for low-temperature color glass and its preparation method and use method. The low-temperature colorant is prepared by compounding quartz powder, borax, sodium carbonate, coloring additives and other auxiliary raw materials, and The coloring additives ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/04
CPCC03C1/04
Inventor 王美兰范良成韩强
Owner JIANGSU BAIFU TECH CO LTD