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Processing method for bleaching brightening and colorizing pearl

A processing method and pearl technology, applied in jewelry, clothing, applications, etc., can solve the problems of pearl color yellowing, pearl peeling, luster loss, etc., and achieve good adsorption performance

Inactive Publication Date: 2011-05-04
HUNAN YISILI PEARL
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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 processing method for bleaching, brightening and colorizing pearls belongs to the technical field of bleaching, brightening, colorizing and processing pearls by chemical, physical, and biological technologies, and is characterized by soaking the clean pearls subjected to soaking pretreatment in a container containing solid-phase reagents and sizing agents for 3-8 days at a constant temperature, taking out the pearls, washing and drying in air to obtain solid bleaching pearls; putting the solid bleaching pearls in a container containing liquid-phase reagents, and allowing the solid bleaching pearls to stand for 5-10 days at a constant temperature, taking out the pearls, washing and drying in air to obtain liquid bleaching pearls; also putting the liquid bleaching pearls in a container containing a staining solution and allowing the liquid bleaching pearls to stand for 5-10 days at a constant temperature, taking out the pearls, washing and drying in air to obtain colorized pearls. The invention utilizes a comprehensive mechanism of adsorption bleaching, oxidation bleaching and fluorescence brightening, and adopts an alternative manner of solid-phase reagents and liquid-phase reagents for pearl process so that color pearls can be processed into glittering and translucent jade-white pearl artworks with shining brilliance, and after a colorizing process the pearls can be processed into colorized pearls with various colors.

Description

technical field [0001] The invention relates to a method for bleaching, enhancing and coloring pearls, and belongs to the technical field of bleaching, enhancing and coloring 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 technological value. Among them, ble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44C27/00
Inventor 徐旭辉卞德朱正美
Owner HUNAN YISILI PEARL
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