How about the process steps of irradiated pearls ?

How about the process steps of irradiated pearls ?

The process steps of irradiated pearls mainly include the following aspects:

Raw Material Screening: Select pearls with good quality, regular shape, and smooth surface as raw materials. These pearls usually have a certain consistency in terms of size, roundness, and luster to ensure a uniform effect after irradiation.

Cleaning and Pretreatment: Clean the selected pearls to remove surface dirt, impurities, oil, and other substances. This helps to improve the irradiation effect and prevent impurities from causing adverse reactions during the irradiation process. After cleaning, the pearls may be dried for subsequent operations.

Clamping and Fixing: To ensure the stable position of the pearls during the irradiation process and enable them to receive radiation evenly, the pearls need to be clamped in a specific fixture or container. The clamping method should ensure an appropriate interval between the pearls to avoid mutual shielding and ensure the uniformity of irradiation.

Irradiation Treatment: This is a crucial step. Place the clamped pearls in an irradiation device and irradiate them with gamma rays generated by a radioactive source such as cobalt-60. Parameters such as the irradiation dose, time, and intensity need to be precisely controlled according to the type, size, and expected color effect of the pearls. Generally, the irradiation dose is between several tens and several hundreds of kilogray (kGy), and the irradiation time ranges from several hours to several tens of hours.

Post-treatment: After the irradiation is completed, take out the pearls from the irradiation device and carry out necessary post-treatment. This may include cleaning again to remove some surface substances that may be generated during the irradiation process; then drying and sorting, and grading the pearls according to their color, luster, quality, and other characteristics.

Quality Inspection: Conduct a comprehensive quality inspection on the irradiated pearls, including the inspection of color uniformity, glossiness, surface integrity, and the presence of radioactive residues. Only the pearls that meet the relevant standards and quality requirements can enter the market for circulation.

It should be noted that the production process of irradiated pearls needs to strictly comply with relevant safety standards and operating procedures to ensure the safety of operators and the quality of the pearls. At the same time, the irradiated pearls should be clearly labeled during sales to protect consumers' right to know.