Discoloration or fading with human sweat jade bracelets gold jewelry have a close relationship. 99% of people sweat is water, in addition to about 1% of the human body wastes and hazardous substances, such as: Chlorides, lactic acid, urea and ammonia. After exposure to these substances silver and copper and gold jewelry, it will produce a chemical reaction to produce silver chloride and copper sulfide, a chemical salt and showed deep black. This chemical salts often fall from gold jewelry, contaminated skin of the wearer, so that leaves a very distinct black stains on the skin. Cosmetics now has become one of people's lives indispensable "role." If applied in the gold jewelry worn parts of the skin, then no doubt afraid to cosmetics and chemical erosion gold jewelry contain chemical substances "enemy poly head" provide opportunities, the results can be imagined. Some cosmetics, it also contains some fine durum, it can constitute another type of dirt, so wear gold jewelry. Regional Environmental factors may also make gold jewelry lose bright color. For example: more dry area, the air contains more original fine dust, will form a "human sandpaper" after tainted by the body, it can be a very fine gold jewelry abrasive debris, such as a partial black stain. It is worth mentioning that, talcum powder or cream also contains similar particles of gold jewelry will be the same as the above eclipsed. Approach: with soapy water mixed with a little alcohol scrub, then rinse dry. Generally in the market by selling jade pendant 925 silver pure silver are all rather than 999 silver, 925 silver is because the addition of other metals into gold and silver together, this 925 silver in the international community has also been recognized as a Silver, Its ratio of 7.5% and 92.5% silver alloy, such as sterling silver jewelry forge a firmer also relatively easy to wear and deformation, the real 999 sterling silver is very soft, like gold, silver alloy added over jewelry will be made out of both durable and will not wear a few days on the deformation and surface wear too much and need constant polishing. How to care for sterling silver jewelry? The biggest reasons why silver is oxidized oxygen in the air, so the air barrier is the best way of maintenance, for example, silver in a resealable plastic bag and then into the jewelry box, blocking air contact with the silver when silver available in silver wash water or rub silver cloth to polish the silver oxidation, but lethality strong silver wash water, so please try to use the non-resort to rub silver cloth to wipe, such as the use of washing after washing bright silver to immediately pick up flush and soft rubbing, and chemical surface clean and clear, and with a hair dryer or oxygen in the water will accelerate the oxidation of silver Oh! In addition, soaked in alcohol 90 degrees in 12 hours, and then wipe it dry; or toothpaste on a dry cloth to wipe the direct effect is also very good. Desire for a long time, when an elegant and beautiful platinum jewelry to bring you a good feeling, if you can imagine how good care of your beloved platinum jewelry, it has been bright as earth accompany How about you? Here are some simple ways to teach you. When you do housework, do not let wear platinum jewelry contracted oil or bleach, oil will affect the shiny jewelry; jewelry produce bleach may cause spots. Although the younger you want attention, but certainly not to platinum jewelry and gold jewelry while wearing, because gold soft texture, if mutual friction, gold powder adsorbed on platinum, platinum gold yellow, affecting platinum unique pure luster . If you frequently wear, platinum jewelry should try to be cleaned once a month to keep the shiny gloss. Available special jewelry detergent can also be self-cleaning. The correct way is: the toothpaste in the towel rub open hand holding platinum jewelry rubbing back and forth on it, to remove fine lines and dirt surface, then diluted household detergent wash, then rinse with water luster can be restored as new. If your diamond encrusted platinum jewelry, I suggest you annually platinum jewelry to the jewelry store to test it in a timely manner for professional cleaning and refurbishment, so platinum diamond jewelry often wear new. Like beautiful flowers need intensive care, your platinum jewelry need you care - and you can spend quality time together, oh. Pearl color, although very beautiful, but can not stand the test of time. Usually after a few decades, it will become an ordinary yellow pearl, while losing a beautiful pearl luster, which is the saying goes, "become old." Pearl jewelry with a long yellow why it? This is mainly composed of the physical properties of unstable pearl aragonite mineral, over time, it becomes normal calcite. Aragonite together calcite, although the same chemical composition, and their crystal form and gloss is not much different. This is the cause of discoloration of pearls. After pearl yellow, there are some remedies that dilute * soaked yellow shell can be melted, leaving glistening pearl reproduce brilliant, charming color brilliance. But if the color becomes very powerful, it will be difficult to reverse the need to Bahrain after wearing pearl jewelry in technology, as any beauty products (powder, foundation cream, etc.) are on the pearl damage, including perfume and hairspray. Use water pearls worn after soaking rinse, dry, and then covered up, otherwise easily pearl yellow. In Riga water and detergent containers, put your diamond ring on the water and cook for 10 minutes to soften the dirt above, then scrub with a toothbrush, rinse in clean water, and then 90 degrees alcohol wash, and finally come up with dry. Wearing turquoise jewelry must be careful, it can absorb the grease. When your body coated with sunscreen or milk when not wearing turquoise jewelry. Once the stain is difficult because of turquoise make it to restore it. Emerald personality must be placed in a cool place. Because stone egg contains a lot of moisture, exposure to the sun or bright light for too long will be dehydrated. Care is to soak in water for two days or sweet almond oil in it will ever recover. In addition to the maintenance of jewelery general principle, for some jewelry gems are different due to the different character, so the maintenance of some special requirements and precautions, respectively, are as follows: (1) diamonds, rubies, sapphire, tourmaline, topaz (ie topaz) and other gemstone jewelry. These gems hard, can withstand greater pressure, but they also present a common drawback - brittle, for diamonds and topaz also has cleavage, so these gems can not stand drop, knock, otherwise they will be a brittle The avalanche, or due to a cleavage cracks along the cleavage direction, even fragmentation. Remember that even the largest diamond hardness, can not withstand the impact. (2) jade jewelry. While Emerald hard and with toughness, with some impact resistance. However, after the emerald processed products, are often thin, will be damaged by the impact. (3) emerald jewelry. Slightly larger than the hardness of emerald jade, but to be brittle than emerald, and so it can not withstand the shocks and beaten than emerald. In addition, the emerald afraid of high temperature, fire color will fade at high temperatures easily burst. (4) opal jewelry. Opal lower hardness should avoid friction with other items. Opal contains water, avoid high temperature, or lost due to evaporation points, ranging from loss of transparency, heavy burst occurred. In addition, the opal is not acid, so wear opal jewelry should avoid high temperatures and acidic substances. When opal jewelry collections, should pay attention to the environment can not be too dry, or will cause dehydration and cracks, and even rupture. To prevent dehydration, in the dry season, a certain time interval should be placed 清水中浸泡 once opal jewelry. (5) amethyst jewelry. Amethyst color instability, when the temperature or by prolonged exposure can cause fading. Worn or collection process, should avoid high temperature or exposure. (6) malachite and turquoise jewelry. These two gems hardness compared with water, very easy to wear. Both chemically unstable, the case of acid will corrode dissolved. Tesco turquoise color at high temperatures, and even long-time exposure and by the sweat soaked, but also make turquoise color. These are worn and the collection process must be noted. (7) pearl and coral jewelry. Pearl and coral low hardness, easily leaving the surface dull due to friction. Both ingredients are calcium carbonate, the event will suffer from acid corrosion dissolved. Easy summer sweat, sweat also make pearls, coral surface damage and lose their luster. Cosmetic powders, perfumes and hair cream, etc., but also make pearls gradually degenerate. So, summer is best not to wear such jewelry. If after perspiration stain, can be placed in clean water for rinsing, and then a soft fabric gently wiped away. Prior to the collection of pearl jewelry, be sure to rinse after, storage place must also avoid cosmetics. (8) lapis lazuli jewelry. After lapis lazuli jewelry tarnished, must not be soaked in water and rinse. Because lapis is granular aggregates a variety of minerals, if soaked in water and rinse the dirt surface of stones will penetrate to the interior, so that will change lapis original luster. After the stain, use a damp cloth to gently wipe the lapis lazuli jewelry, wipe dirt. Contact: Yujing Li Tel: 4006156603 Website: http: //www.yucunyuye.com Address: Nanyang City Tianguan Li River Logistics Park Avenue in the middle