Pearls are soft, and their hardness is lower than the dust in the air. Avoid contact or friction with hard objects or even hard objects when wearing. Therefore, it is not advisable to wear coarse clothes when wearing pearl jewelry to avoid scratches or scratches. In addition, pearls are afraid of acid, alkali and water loss, and should not be exposed to the sun or placed in a heated high temperature environment; You should also avoid contact with cosmetics such as vinegar, wine, perfume, powder, hair oil and various strong acid and alkali substances; Prevent pearls from fading or losing luster due to the erosion of harmful substances. During X-ray fluoroscopy, it is also best to take out the pearl ornaments and save them to avoid pearl damage.

2. Maintenance methods during collection

Pearls should be washed regularly. When washing, you can rinse with thin soapy water first, and then rinse with clear water. When you don't wear it at ordinary times, you can store it in a jewelry box with soft and clean flannel or silk. It is not suitable to put it in plastic bags or plastic boxes for sealed preservation, so as to avoid the pearl losing water and affecting its luster.

3. Method of reproducing pearlescent light

Some pearls worn or stored by ancestors for decades may turn dark yellow. For pearls whose yellowing is still limited to the surface layer, they can be soaked in 1%-5% dilute hydrochloric acid or hydrogen peroxide for a period of time. After the yellow shell is dissolved, take out the pearl quickly, wash it with clear water and dry it, and the pearl will regain its luster. However, special attention should be paid not to soak in dilute hydrochloric acid for too long to prevent pearls from being damaged. Of course, if the color becomes very thick, it is difficult to reverse it. For black, dull and heavily dyed pearl jewelry, it can also be soaked in 10% salt water, rinsed with 3% dilute hydrochloric acid solution, and then rinsed with clear water, which can also restore luster.

4. Regular maintenance and maintenance

Due to the weak resistance of pearls to acid and alkali, they can't stand the erosion of sweat, so they should be maintained regularly at ordinary times. Always wipe with a clean soft cloth to remove the dust and dirt attached to the pearl surface. When wiping, it can be wiped with soft paper or soft cloth containing silicone oil. When washing with water, you should not use acidic or strong alkaline liquid, let alone hot water or boiled water, so as to avoid the solution eroding the skin structure and surface luster of pearls. Only use neutral cleaning solution, and then rinse thoroughly with clean water.

Du Niang's other questions are excerpted, hoping to help you.