Method for optimizing pearl color, light and brightness

A pearl and color technology, applied in jewelry, clothing, applications, etc., can solve the problems of decreased luster, peeling of pearls, and large difference in numerical value.

Inactive Publication Date: 2008-04-23
蒋玉琼
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the unique physical and chemical properties and crystal structure of pearls, greater density and hardness, specific optical surface, and the water environment and breeding cycle of artificially cultured pearls in my country, the numerical range of the above characteristics is quite different. Added difficulty to optimization of pearl color, luster and brightness
Pearls after bleaching tend to turn white, but the luster decreases and the pearl quality is damaged. After a period of time, the pearl color turns yellow and the pearl quality peels off.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1) Washing and drying the pearls after pre-soaking to become clean pearls;

[0020] 2) Put the cleaned beads into a container containing solid-phase reagents and wetting agents, place them at a constant temperature of 25±5°C for 5-8 days, take them out, wash and dry them to form solid floating beads:

[0021] 3) Put the solid floating beads into a container containing liquid phase reagents, place them at a constant temperature of 30±5°C for 5-10 days, take them out, wash them and dry them to form liquid floating beads.

[0022] The solid-phase reagent is made of magnesium-aluminum compound salt as the main body, added with sodium carbonate, chemically modified, and then dried and crushed. The wetting agent is a compound of pyrophosphate and urea. The liquid phase reagent is a compound of peroxide, chloroform and triethanolamine.

Embodiment 2

[0024] 1) Washing and drying the pearls after pre-soaking to become clean pearls;

[0025] 2) Put the cleaned beads into a container containing solid-phase reagents and wetting agents, place them at a constant temperature of 50±5°C for 3 to 5 days, take them out, wash and dry them to form solid floating beads;

[0026] 3) Put the solid floating beads into a container containing a liquid phase reagent, place them at a constant temperature of 45±5°C for 5 to 7 days, take them out, wash them and dry them to form liquid floating beads.

[0027] 4) Put the liquid bleaching beads treated by the above bleaching process into a container containing the dyeing solution, place them at a constant temperature of 40±5°C for 2 to 3 days, take them out, wash them and dry them to form dyed beads.

[0028] The solid-phase reagent is made of magnesium-aluminum compound salt as the main body, added with magnesium oxide and sodium dodecylsulfonate, chemically modified, dried and crushed. The wett...

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PUM

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Abstract

The present invention belongs to the field of pearl processing technology, and relates to an optimized processing method for pearl colour, luster and brightness. It is characterized by that according to the original physico-chemical properties and crystal structure of pearl said invention utilizes the comprehensive mechanism of adsorption bleaching, oxidation bleaching and fluorescent bleaching, and adopts a solid-liquid phase alternative action so as to implement optimum processing of pearl colour, luster and brightness. The results show that the bleaching rate for pearl with light assorted colour is up to above 80%, and the bleaching rate of for pearl with dark colour is up to above 70%, and the pearl luster can be greatly raised and brightness also can be improved.

Description

technical field [0001] The invention belongs to the technical field of pearl processing. It involves an optimized processing technology for pearl color, luster and brightness. Background technique [0002] Pearl is the secretion of mantle cells of certain molluscs bivalves. It is a specific crystal structure formed by the alternating arrangement of thousands of layers of inorganic molecular calcium carbonate crystal layers and thin layers of biological macromolecular shell keratin. Artificially cultivated freshwater seedless pearls are mostly round, oblate, oval and shaped. The colors are miscellaneous white series, red series, yellow series, black series and so on. Raw pearls collected from cultured pearl oysters need to go through a series of processing procedures such as sorting, punching, bleaching, brightening, and stringing before they can become decorative ornaments with technological value. Among them, bleaching and brightening are the most critical process in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44C27/00
Inventor 蒋玉琼
Owner 蒋玉琼
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