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Anticorrosion treatment technology of pearl

A treatment process and anti-erosion technology, which is applied in jewelry, clothing, applications, etc., can solve the problems of poor anti-erosion treatment effect, increase metallic luster and durable wear resistance, improve quality and grade, and improve durable wear resistance sexual effect

Inactive Publication Date: 2008-01-02
浙江千足珠宝有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of poor anti-erosion treatment effect in the prior art, the present invention provides an anti-erosion treatment process for pearls

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Mix 45ml of isopropyl titanate and 350ml of isopropanol evenly to make a solution;

[0025] 2. Add 15ml of acetylacetone and mix well, then add 30ml of water, and adjust the pH value to 7-8 with 25% ammonia water;

[0026] 3. Raise the temperature of the mixed solution to about 60°C in the reflux device and keep it warm for 5 hours to prepare the titanium dioxide sol;

[0027] 4. Wash away the moisture in the sol with isopropanol for 5 times to prepare the titanium dioxide alcohol colloid precursor;

[0028] 5. Immerse 200g pearl sample, and react with the precursor at about 60°C for 7 days;

[0029] 6. After removing the solvent contained in the pearl sample taken out under reduced pressure at 80°C, the pearl product treated with nano-titanium dioxide can be obtained by washing, drying and polishing.

Embodiment 2

[0031] 1. Mix 45ml n-butyl titanate and 350ml n-butanol evenly to make a solution;

[0032] 2. Add 15ml of acetylacetone and mix well, then add 30ml of water, and adjust the pH value to 7-8 with 25% ammonia water;

[0033] 3. Raise the temperature of the mixed solution to about 60°C in the reflux device and keep it warm for 5 hours to prepare the titanium dioxide sol;

[0034] 4. Wash away the moisture in the sol with n-butanol for 3 times to prepare the titanium dioxide alcohol colloid precursor;

[0035] 5. Immerse 150g pearl sample, and react with the precursor at about 60°C for 4 days;

[0036] 6. After the taken-out pearl sample is evaporated to remove the contained solvent under reduced pressure at 60°C, the pearl product treated with nano-titanium dioxide can be obtained by washing, drying and polishing.

Embodiment 3

[0038] 1. Mix 50ml n-butyl titanate and 350ml isopropanol evenly to make a solution;

[0039] 2. Add 15ml of acetylacetone and mix well, then add 20ml of water, and adjust the pH value to 7-8 with 25% ammonia water;

[0040] 3. Raise the temperature of the mixed solution to about 60°C in the reflux device and keep it warm for 10 hours to prepare the titanium dioxide sol;

[0041] 4. Wash away the moisture in the sol with propanol for 5 times to prepare the titanium dioxide alcohol colloid precursor;

[0042] 5. Immerse 200g pearl sample, and react with the precursor at about 60°C for 5 days;

[0043] 6. After removing the solvent contained in the pearl sample taken out under reduced pressure at 80°C, the pearl product treated with nano-titanium dioxide can be obtained by washing, drying and polishing.

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PUM

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Abstract

An anticorrosion process for pearl includes dissolving titanate in alcohol solvent, adding stabilizer, regulating pH=6-9, hydrolyzing, polycondensating to obtain TiO2 sol, eluting with alcohol solvent for dewatering it, immersing the pearl in it at 40-80 deg.C for 2-10 days, vacuum distilling for removing alcohol solvent, and drying to obtain anticorrosion pearl.

Description

(1) Technical field [0001] The invention relates to an anti-corrosion treatment process for pearls. (2) Background technology [0002] The formation of broken bonds and the loss of some groups during the bleaching process of pearls are prone to defects, due to the defects and oxygen, pollutants in the atmosphere, human sweat, oil, alcohol and other organic solvents produced during the long-term natural oxidation process of pearls The reaction takes place to make the pearl luster and permeability of the pearl continuously decline, and the defect is very easy to participate in the reaction with the external impurities in order to reduce its own energy, so that the "jewelry" is completely lost. [0003] In terms of the anti-environment erosion resistance of pearls, in the prior art, the pearls are soaked in hot paraffin oil or the polishing powder is added with paraffin oil, and the pearl surface is coated with a film for protection. Paraffin wax can effectively increase the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A44C27/00
Inventor 陈海军杨天擎翁学庆
Owner 浙江千足珠宝有限公司
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