Why do gold jewelry, gold bars, and gold coins purchased in jewelry stores have yellow-brown spots? Why do some people wear gold jewelry after darkening? Today, Jintou.com will bring everyone to reveal the black jewelry. what is the reason.
1. For a long time, gold jewelry has no luster. Daily wear or environmental factors may cause the gold jewelry to lose its bright color. For example, in a dry area, the air contains more fine dust. When it is contaminated with the human body, it will form a kind of “human sandpaperâ€, which can rid the gold jewelry with extremely fine debris and local black stains.
2, the reason for the blackening of gold jewelry black body waste and harmful substances chlorine, lactic acid, urea ammonia, etc., will be in contact with silver and copper in gold jewelry to produce a chemical reaction, producing dark black silver chloride and copper sulfide This chemical salt sometimes falls from the gold jewelry and also contaminates the wearer's skin, leaving a very noticeable black stain.
3. The gold in the gold jewelry will be worn less and less. The gold in the gold jewelry will be worn less and less, but this quality consumption is invisible to the human eye.
At present, cosmetics has become one of the "characters" indispensable to people's lives. If it is applied to the skin of the gold jewelry wearing parts, it will undoubtedly provide opportunities for cosmetics containing chemical substances and gold jewelry that is most afraid of chemical substances to smash. The result can be imagined. Some cosmetics also contain some fine hard particles, which can form another type of dirt, thus consuming gold jewelry.
The industry leader in custom Metal dog tag pricing, quality, and selection. We can make any Dog Tags in any quantity in a variety of styles, materials and colors. They are great for identification and used as school participation medals, business promotional products, church fundraisers and camp prizes. We do not charge front side setup fees for our custom dog tags, and like all of our promotional products, we offer FREE artwork proofs and FREE changes! Request a free quote or order your custom dog tags online!
Metal Dog Tag,Dog Tags For Pets,Custom Dog Tags,Dog Tags
Shenzhen MingFengXing Art & Craft Products CO., LTD. , https://www.goodkeyring.com