The pearls with pleated crowns and dorsal tumors can be harvested in normal summer and winter and some in the same year. The triangular nucleus and other beluga are generally passed through the three summers. "Winter" can be harvested, with nuclear pearls being shorter than non-nuclear pearls. Why do pearl formation take such a long time? Because no matter which type of pearl is used for cultivation, no matter which type of pearl is cultured, it must undergo the formation of bead sac, the period of embryogenesis, the period of pearl nucleation, the rounding period, The five phases of the round. The time required for these five stages generally takes 500 days to 800 days. At this time, the time should be collected in time. The longest breeding period should not exceed 1,100 days. The number of pearls grows slightly, but the secretion of pearls may increase slightly, but the quality of pearls and pearls is not as good as timely harvesting, and some of them may be shed due to the swelling of the pearls, resulting in the loss of the skin. Loss.
Pearls are harvested for three times a year: First, in the late autumn, because the weather is getting colder this season, the temperature of the water drops, and the pearl production of the pearl-producing oysters gradually slows down, prompting the surface of the pearl to gradually become delicate and bright in color; the second is winter. At the beginning, at this time, the equinoxes had entered a semi-dormant state and completely stopped the secretion of nacre, so the quality of harvested pearls was also the best during this period. In the early spring, not only the quality of the bead was good, but the most important thing was this time. Pearl mining can be linked to the next round of pearl-bearing surgery. The first production of the pearl can be used, and the beads can be taken afterwards. The last round of annual growth can be used to make the next round of production. The water temperature also increases in spring. It is good for pearl wound healing and pearl growth.
Summer is forbidden to harvest pearls. The main reason is that the secretion of summer natristic, resulting in uneven bead surface, texture, loose, dark luster; At the same time, due to high temperatures, pearl larvae are susceptible to infection, easy to pollute the water quality, resulting in a large number of deaths.
Beading method: First, the pearls for preparing pearls are removed from the bamboo racks or baskets, transported to the interior, and the front and rear shell muscles are cut with a knife, and the pearls in the mantle are pinched with fingers, and then cleaned in time. In order to remove the liquid and dirt attached to its surface, it would make the pearl luster dark and the quality worse. The pearl can be washed in saturated saline solution to wash off the mucus, bead sac and attachments, and then wash the brine on the pearl with water, and finally washed with 0.15% to 0.2% sodium dodecyl sulfate. The pearls are then placed in a container and the pearls are submerged with a liquid solution, and gently agitated for about 3 minutes to 5 minutes so that the liquid and the surface of the pearl are in full contact and allowed to stand overnight. The next day gently stir for about 15 minutes, rinse with water, wash the foam and dirt thoroughly, then dry with a flannel, white silk cloth light, and separate the grades.
On the dim pearl, you can use 3% ~ 5% of hydrogen peroxide (hydrogen peroxide) or dilute hydrochloric acid impregnated to make it glossy but the dipping time must be appropriate, otherwise it is easy to cause deterioration. After immersion, wash with water. After the treatment, the pearl with poor luster can still be rubbed with sawdust mixed with sawdust to increase the luster.
Pearls are harvested for three times a year: First, in the late autumn, because the weather is getting colder this season, the temperature of the water drops, and the pearl production of the pearl-producing oysters gradually slows down, prompting the surface of the pearl to gradually become delicate and bright in color; the second is winter. At the beginning, at this time, the equinoxes had entered a semi-dormant state and completely stopped the secretion of nacre, so the quality of harvested pearls was also the best during this period. In the early spring, not only the quality of the bead was good, but the most important thing was this time. Pearl mining can be linked to the next round of pearl-bearing surgery. The first production of the pearl can be used, and the beads can be taken afterwards. The last round of annual growth can be used to make the next round of production. The water temperature also increases in spring. It is good for pearl wound healing and pearl growth.
Summer is forbidden to harvest pearls. The main reason is that the secretion of summer natristic, resulting in uneven bead surface, texture, loose, dark luster; At the same time, due to high temperatures, pearl larvae are susceptible to infection, easy to pollute the water quality, resulting in a large number of deaths.
Beading method: First, the pearls for preparing pearls are removed from the bamboo racks or baskets, transported to the interior, and the front and rear shell muscles are cut with a knife, and the pearls in the mantle are pinched with fingers, and then cleaned in time. In order to remove the liquid and dirt attached to its surface, it would make the pearl luster dark and the quality worse. The pearl can be washed in saturated saline solution to wash off the mucus, bead sac and attachments, and then wash the brine on the pearl with water, and finally washed with 0.15% to 0.2% sodium dodecyl sulfate. The pearls are then placed in a container and the pearls are submerged with a liquid solution, and gently agitated for about 3 minutes to 5 minutes so that the liquid and the surface of the pearl are in full contact and allowed to stand overnight. The next day gently stir for about 15 minutes, rinse with water, wash the foam and dirt thoroughly, then dry with a flannel, white silk cloth light, and separate the grades.
On the dim pearl, you can use 3% ~ 5% of hydrogen peroxide (hydrogen peroxide) or dilute hydrochloric acid impregnated to make it glossy but the dipping time must be appropriate, otherwise it is easy to cause deterioration. After immersion, wash with water. After the treatment, the pearl with poor luster can still be rubbed with sawdust mixed with sawdust to increase the luster.
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