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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 durable wear resistance, improve quality and The effect of grade

Inactive Publication Date: 2005-10-26
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 isopropyl titanate and 350ml isopropanol to form a solution;

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

[0026] 3. The mixed solution is heated to about 60°C in a reflux device and kept for 5 hours to prepare a titanium dioxide sol;

[0027] 4. Elute the water in the sol with isopropanol 5 times to prepare the precursor of titanium dioxide alcohol gel;

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

[0029] 6. After the removed pearl sample is evaporated under reduced pressure at 80°C to remove the contained solvent, washed with water, dried, and polished to obtain a pearl product treated with nano-titanium dioxide.

Embodiment 2

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

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

[0033] 3. The mixed solution is heated to about 60°C in a reflux device and kept for 5 hours to prepare a titanium dioxide sol;

[0034] 4. Use n-butanol to elute the water in the sol three times to prepare a titanium dioxide alcohol gel precursor;

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

[0036] 6. After the removed pearl sample is evaporated under reduced pressure at 60°C to remove the contained solvent, washed with water, dried, and polished to obtain a pearl product treated with nano-titanium dioxide.

Embodiment 3

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

[0039] 2. After adding 15ml of acetylacetone and mixing well, add 20ml of water and adjust the pH to 7-8 with 25% ammonia;

[0040] 3. The mixed solution is heated to about 60°C in a reflux device and kept for 10 hours to prepare a titanium dioxide sol;

[0041] 4. Elute the water in the sol with propanol 5 times to prepare the precursor of titanium dioxide alcohol gel;

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

[0043] 6. After the removed pearl sample is evaporated under reduced pressure at 80°C to remove the contained solvent, washed with water, dried, and polished to obtain a pearl product treated with nano-titanium dioxide.

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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 certain groups during the bleaching process of pearls are prone to defects. Due to the defects generated by the bleaching of pearls during the long-term natural oxidation process, oxygen, atmospheric pollutants, human sweat, grease, alcohol and other organic solvents Reactions cause the pearly luster and permeability of the pearl to continue to decrease. The defects can easily participate in the reaction with external impurities in order to reduce its own energy and cause the "pearl light" to be lost. [0003] In terms of the resistance to environmental erosion and durability of pearls, in the prior art, the pearls are soaked in hot paraffin oil or the polishing powder is added with paraffin oil to coat the surface of the pearls for protection. Paraffin wax can effectively increase the resistance of pe...

Claims

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Application Information

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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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