Pearl composition and cause of yellowing Pearls are loved by people because they are soft and lovely, elegant and generous. Pearl is a medium-quality calcium carbonate. Each pearl contains more than 90% calcium carbonate and about 4% water. The chemical stability is poor. When the pearl is exposed to the air for a long time, the pearl layer is oxidized and will turn from white to yellow. Pearls rely on this moisture to make them shine, and pearls that are not used for a long time are easy to run away. Pearl daily wear and maintenance need to pay attention to 1. Avoid contact with acid and alkaline materials: In order to prevent the pearl's luster and color from being affected, the pearl should be protected from acid, alkali and chemicals, such as perfume, soap, and shaped water. Do not wear pearl jewelry to swim or bathe. Please wear your lovely pearls after makeup. There are tiny pores on the surface of the pearl. Do not wear beautiful pearls to cook. Steam and soot may penetrate into the pearl and make it yellow. 2, cashmere cloth wipe: every time you wear pearls (especially on hot days) must be cleaned after the pearls are put away, you can maintain the luster of the pearl. It is best to use sheepskin or delicate flannel, do not use facial tissue, because some rubbing of the paper will wear the pearl. 3, no need to clean water: water can enter the small hole of the bead, not only difficult to dry, may also make the inside fermentation, the bead line may turn green. Wipe it off with a soft, damp towel, dry it naturally and put it back in the jewelry box. 4, pearls need air: do not put pearls in the safe for a long time, do not use plastic bags to seal. Fresh air is needed between the pearls, and they are worn out every few months to let them breathe. If the pearl is easily yellowed in the box for a long time ("people are old and yellow", this is what it means.) 5, to avoid exposure: Because the pearl contains a certain amount of water, the pearl should be placed in a cool place, try to avoid direct exposure in the sun, or placed in a too dry place, so as not to dehydrate the pearl. 6, anti-hard scraping: the pearl jewelry should be stored separately, so as to avoid other jewelry scratching the pearl skin. If you are going to wear a bead chain on your clothes, the texture of the clothes is preferably soft and slippery. Too rough material may scratch your precious pearls. 7, flat storage: Do not hang the bead chain for a long time, the silk will be loose and deformed for a long time, it should be placed flat. 8. Pearl ring: When removing the pearl ring, grab the handle or metal part of the ring, do not use the beads as the place of force, so as to avoid the looseness of the bearing surface of the pearl and prevent the dirt in your hand. And the oil secreted by the skin sticks to the beads. 9. Regular inspection: 3 years change line, the silk thread is easy to loose for a long time, can check the silk thread loosely and replace the silk thread once every 1-2 years; pearls should be re-stringed every 3 years, of course, depending on wear Depending on the number of times. The dirt entering the hole of the bead will produce a frictional force, causing the nylon thread to break, and the broken position is close to the button. Remedy after pearls turn yellow After the pearl turns yellow, it can be remedy: soaking in dilute hydrochloric acid can dissolve the yellowish outer shell, so that the pearl can reproduce the brilliant and radiant color. Coffee Set,Heat Resistant Coffee Set,Handmade Nice Coffee Set,Easy Cleaning Coffee Set shaoxing qinzi business company ltd , https://www.qinzisx.com
August 25, 2021