External causes of pearl formation
The mantle of mussels is stimulated by the invasion of foreign bodies (sand and parasites). The epidermal cells in the stimulation area take foreign bodies as the core and fall into the connective tissue of the mantle. Some of the trapped epidermal cells divide themselves to form nacre, which secretes nacre and the nucleus is wrapped layer by layer to form pearl. What's the name of taking foreign bodies as the core? Nucleated pearls? .
internal cause
After pathological stimulation, a part of the outer skin of the mantle undergoes cell division, and then it is separated, coated with organic substances secreted by itself, and gradually falls into the connective tissue of the mantle, forming pearl sacs, and then forming pearls. Because there is no foreign body as the core, it is called? Seedless pearls? .
At present, cultured pearls are cut from the mantle of pearl-breeding mussels by artificial methods according to the above principles, and implanted into the connective tissue of the mantle together with the artificial nucleus prepared by mussel shells. The implanted cell fragments proliferate rapidly around the artificial nucleus by the nutrition provided by connective tissue, forming pearl sacs and secreting nacre, thus producing artificial nucleated pearls. Artificial seedless pearls are pearls produced by implanting only small pieces of cells into the mantle, forming pearl sacs through cell proliferation, and secreting mother-of-pearl into the sacs.
According to the survey of old customers of Pearl Beauty, about 55% customers have the habit of maintaining pearls; About 9% of customers said they had been to maintenance, but they didn't know much about maintenance methods. About 27% of customers said they knew they needed maintenance, but they didn't insist. About 17% of customers have no maintenance habits. Consumers reflect that they want to know more about some knowledge and maintenance skills of pearls. From this point of view, most people still have a little knowledge of the maintenance doorway of pearl necklaces, and have no in-depth understanding.
The maintenance method of pearl necklace, let Pearl Beauty teach you some of the most professional and meticulous maintenance methods. Perseverance will keep our pearl baby brilliant!
1, the attitude towards pearls should be correct: if you regard her as an inanimate thing, just to satisfy your vanity, then maybe you don't deserve to be a woman wearing pearl jewelry. Only when she is regarded as a symbol of all beings, full of vitality and your friend, can she raise your temperament to a higher level, bring you elegance and nobility, and let you know how to cherish pearls and have a caring attitude towards her.
2. Anti-acid and alkali oil: In order to keep the bright color of pearls, it is necessary to avoid pearls from contacting with acid and alkali chemicals, such as acid and alkali soap, shower gel, perfume, qualitative spray, vinegar, lemon juice or other chemical solutions. Pearls should be picked before cooking. There are fine pores on the surface of pearls, which may turn yellow when absorbing oil and fumes.
Reason: The composition of pearls is calcium carbonate containing organic matter. Each pearl contains more than 90% calcium carbonate and about 4% water, so its chemical stability is not strong.
3. Waterproof washing: Pearl necklaces should not be washed directly with water or soaked for a long time. When bathing, soaking in hot springs and swimming, you should pay attention to remember to pick the beautiful pearls first!
Reason: It is easy to make the water vapor in the main line in the pearl hole difficult to volatilize by directly washing the pearl necklace with water. In the long run, the beads may show signs of mildew or become fragile and easy to loosen.
4. Wipe with flannel: When not in use, don't forget to wipe the dust, sweat or grease left on the pearl surface with flannel before putting it into the jewelry box. In case of dirt or dryness, wipe the surface with a little distilled water (pure water) dipped in flannel, dry it and store it.
Reason: Generally, regular businesses will provide professional bead-wiping flannel with delicate and soft surface, which won't hurt pearls and has strong adsorption, so don't use tissue paper or other rough fabrics, because the friction of some tissue paper will wear pearls. It is recommended not to wipe with tap water or mineral water, because tap water contains chlorine, and long-term contact with pearls also has a certain impact on luster.
5. Keep the water vapor: the pearl necklace should be placed in a cool place, avoiding direct sunlight as much as possible, or in an excessively dry place to avoid dehydration of pearls. When the weather is dry, put a cup of pure water beside it to let the pearl absorb water vapor. Housewives who often cook should take them off before entering the kitchen to avoid being close to fire or heat sources. You should wear it every once in a while, too.
Reason: Pearls contain about 4% water, and it takes a certain amount of water to shine. Just like your skin, you need to replenish water in dry and hot weather. Long-term sealed environment, or hot and dry places, make pearls easy to lose, lose light or change color.
6, separate storage: pearls are suitable for separate storage in suede jewelry boxes, and can also be stored in suede portable bags when traveling. Avoid hard object collision. If you plan to wear bead chains on your clothes, the clothes should be soft and slippery, and avoid wearing too hard fabrics, such as wool clothes, which will also scratch the skin of pearls.
Reason: Together with other metals or gem jewelry, it is easy to rub against each other, scratch or absorb the color of other metals.
Avoid pulling: pearl necklaces should not be pulled when they are taken off. Just grab the bead chain with your fingers. You can easily remove the button in the right way, don't use brute force. Store it flat, don't hang it vertically, and don't throw it around. Check the tightness of beads and buttons regularly. If there are signs of looseness, it is recommended to contact the merchant in advance to arrange re-threading.
Reason: Professional pearl necklaces have artificial knots between each pearl, which not only prevents the pearls from rubbing against each other, but also reduces the stress on the bead line, making the whole more firm and not easy to loosen. Even if they fall off, the pearls will not be scattered all over the floor. If the string is pulled for a long time or scratched by a sharp object, the firmness of the string will be reduced. Most jewelry cleaning agents on the market contain ammonia. Do not use bleach, soap powder, detergent, soda water or detergent containing frosted ingredients to clean pearl jewelry. These substances will corrode the pearl skin, causing discoloration and pearl layer shedding. The way of high-temperature steam cleaning jewelry will change the color of pearls.
Other misunderstandings about maintaining pearls There may be many strange ways to maintain pearls online. Pearl Beauty advises consumers not to believe everything without practical experience.
Wash with toothpaste: There are various toothpastes with different ingredients on the market. Toothpaste contains fine abrasive particles with high hardness, which will wear the surface of pearls. After all, pearls are not teeth!
Washing: Although pearls need a certain amount of moisture and humidity, as mentioned above, pearl necklaces should not be washed with tap water, let alone added with acid-base detergent. Soaking for a long time can easily lead to mildew of beads and loss of luster of pearls. When it is really dry, put a glass of water beside it, or soak it in distilled water to wipe the surface.
Long-term storage in a safe: a long-term sealed environment is not good for pearls. Because of the low relative humidity, the storage conditions are not suitable for pearls. If you must store it, you'd better put a glass of pure water next to it. It is best to take out the pearl necklace and wear it every month.
That is, dilute hydrochloric acid immersion: under the guidance of non-professionals, do not operate indiscriminately. If the acidity ratio and soaking time are not well controlled, the skin of pearls will often be damaged. Even if it turns white, it will lose its original luster, which is not worth the loss.