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Bleaching shining and colouring processing method for pearl

A processing method and pearl technology, which is applied in jewelry, clothing, applications, etc., can solve the problems of peeling of pearls, increased difficulty of pearl bleaching and brightening process, and damage of pearls, so as to achieve the effect of increased luster

Inactive Publication Date: 2003-04-30
阮华君
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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. Both increase the difficulty of the pearl bleaching process
Usually, the color of bleached pearls turns 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] a. Washing and drying the pearls after pre-soaking to become clean pearls;

[0020] b. 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] c. 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] a. Washing and drying the pearls after pre-soaking to become clean pearls;

[0025] b. 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] c. 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] d. 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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Abstract

A process for bleaching, brightening and colouring pearl includes such steps as immersing, washing, putting in the mixture of solid reagent and infiltrant in constant temp condition for 3-8 days, washing, drying in air, putting in liquid reagent in constant temp comdition for 5-10 days, washing, drying in air, and then putting in dye liquid at constant temp for 5-10 days, washing and drying in air.

Description

technical field [0001] The invention relates to a method for bleaching, brightening and dyeing of pearls, and belongs to the technical field of bleaching and brightening and dyeing of pearls using chemical, physical and biological technologies. 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 tec...

Claims

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Application Information

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