Bleaching liquor for marine cultured pearl and preparing method thereof

A technology of mariculture and bleaching solution, which is applied in fish farming, application, climate change adaptation, etc. It can solve the problems of insufficient luster of pearls, expensive additives, and increased processing costs, and achieves low pitting rate, low price, good gloss effect

Inactive Publication Date: 2005-09-07
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a small number of pearl processing units in my country have begun to use the low-temperature bleaching method, but the auxiliary agents used are relatively expensive, which greatly increases the processing cost; there are also people who use the solid-liquid two-phase bleaching method with solid-phase decolorizing agents as the main body, but this kind of method bleaches out. The pearl luster is not good enough

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Use a graduated cylinder to measure 16mL of 30% hydrogen peroxide into a clean beaker, then use a pipette to pipette 0.2mL of the surfactant polyethylene glycol dimethyl ether into the beaker, stir it with a glass rod to dissolve it, and set it with sea water. Make up to 100mL, and finally adjust the pH value of the solution to 8.10 with dilute ammonia water. Store the prepared bleaching solution away from light for bleaching. Generally, the storage time should not exceed seven days.

[0009] When using the bleaching solution of the present invention, put the perforated stain beads into a conical flask with a stopper (the amount of pearls put in can just cover the bottom of the bottle), and add the bleaching solution until the liquid level exceeds the bead surface by about 2cm. Then put the Erlenmeyer flask containing the bleached sample into the bleaching box, control the temperature at about 35°C, change the bleaching solution every two days, and shake the Erlenmeyer...

Embodiment 2

[0011] Use a graduated cylinder to measure 150mL of 30% hydrogen peroxide into a clean beaker, then use a pipette to pipette 2.5mL of surfactant polyethylene glycol dimethyl ether into the beaker, stir it with a glass rod to dissolve it, and set it with sea water. Make up to 1000mL, and finally adjust the pH value of the solution to 8.4 with dilute ammonia water. Store the prepared bleaching solution away from light for bleaching. Generally, the storage time should not exceed seven days.

[0012] When using the bleaching solution of the present invention, the perforated stain beads are put into a stoppered conical flask (the amount of pearls put in can just cover the bottom of the bottle), and the bleaching solution is added until the liquid level exceeds about 2 cm of the pearl surface. Then put the Erlenmeyer flask containing the bleached sample into the bleaching box, control the temperature at about 33°C, change the bleach solution every two days, and shake the Erlenmeyer...

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PUM

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Abstract

The invention discloses a pearl bleaching liquid for mariculture characterized by using sea water as solvent, using surface active agent polyethylene glycol dimethyl ether and bleaching agent hydrogen peroxide solution as solute, wherein the volume percentage concentration of the two solutes are 0.1-0.3% and 4-6%, the pH of the bleaching bath is 8.00-8.60. The preparation comprises measuring bleaching agent hydrogen peroxide and charging into surface active agent polyethylene glycol dimethyl ether, stirring to dissolve the latter, charging in seawater, and finally adjusting the pH of the solution.

Description

technical field [0001] The invention relates to a seawater cultured pearl bleaching solution and a preparation method thereof. Background technique [0002] Since the 1950s, Professor Xiong Daren, the founder of China's marine cultured pearls, Jinan University's Department of Biology, successfully used Pinctada martensii to insert nuclei, my country's seawater pearl culture has developed rapidly, and has now become an important marine culture industry. industry. Cultured pearls collected from shells often have uneven color and luster, and most of them need to be processed to become seawater pearl products with uniform color and luster, clean and translucent. The core step of processing is "bleaching". The research on pearl bleaching technology has been going on for a long time, and it is also quite effective. Among them, Japan, China and Southeast Asian countries have more researches, and Japan has the most advanced bleaching technology, and has developed the third and four...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 李雪英王海增郭鲁钢徐华伟
Owner OCEAN UNIV OF CHINA
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