But if you don't pay attention to hygiene and wear it for a long time, it will induce "jewelry disease". Most alloy ornaments are electroplated products. If you often come into contact with acid stick salt or get soaked by sweat, it will become moldy and do great harm to human body.

Wearing alloy jewelry for a long time will cause local skin around the jewelry to be moist, airtight and difficult to clean, and bacteria and molds will grow and multiply in large quantities, which will induce skin diseases.

Cleaning of brass jewelry;

1, copper is difficult to clean after oxidation. Generally, it is wiped with toner and then washed with water. Wax after cleaning. If brass jewelry is badly oxidized and cannot be cleaned with toner, then potassium permanganate is needed. The procedure is the same as the previous one.

2, be sure to wax after cleaning, otherwise it will be oxidized again. When waxing, it is best to use paraffin. Evenly apply a layer on the surface of the article. Waxing is similar to polishing, which ensures that the surface of the object is no longer in contact with the outside air, and at the same time, a thick layer of grease can be felt.

Disadvantages of using copper as jewelry chain;

1, wearing it for a long time is harmful to your health.

On the one hand, because copper ornaments are rich in copper substances, long-term wearing can easily lead to excessive copper ions in the body, and serious metal poisoning may occur. On the other hand, if copper jewelry comes into contact with food and cannot be digested after entering the body, it will affect the digestive system. So take it off after wearing it for a while and don't leave your body all the time.

2, easy to oxidize, affecting the appearance.

On the one hand, copper ornaments are often in contact with water and are easy to oxidize, forming a layer of black oxide on the surface.