2011年8月22日星期一

Why gols jewelry easy fade

Wearing gold jewelry at some time, found that change color or fade, many people think that this is insufficient purity of gold jewelry, so shop representations or complaints to the Consumers Association, however, was not accused of fading gold jewelry is insufficient purity of gold jewelry , but other reasons.
   
If gold jewelry to wear cosmetics applied in parts of the skin, it will undoubtedly contain chemicals corrosive chemicals in cosmetics and fear of gold jewelry "enemy heads together" to provide opportunities, the result can be imagined. Some cosmetics, it also contains some minor durum, it constitutes another type of dirt, wear gold jewelry. Geographical environmental factors also may lose the bright color of gold jewelry. For example: the more dry regions, where the air contains more original fine dust contamination on the human body will form a "human sandpaper", which can be a very fine gold jewelry abrasive debris, partial black stain. It is worth mentioning that, talcum powder or cream also contain similar particles, such as the above will be eclipsed as the gold jewelry.

Discoloration or fading of gold jewelry and the body's sweat has a close relationship. 99% of people's sweat is water, the other 1% is human body waste and harmful substances, such as: Chlorides, lactic acid, urea, ammonia and so on. These substances and gold jewelry in silver and copper exposure, will produce a chemical reaction to produce silver chloride and copper sulfide, and showed dark chemical salt. The chemical salts often fall on the gold jewelry from the pollution of the wearer's skin, the skin is very clear on the left black stains.

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