The normal storage period of metal buttons is one year or more. If it is a leather item that is bound in leather clothing, leather bags, leather shoes and caps, it must be noted that it may be oxidized.
Daily life should pay attention to copper buttons in the process of use and storage do not get wet, do not contact with alkaline and acidic substances, can effectively prevent moisture, oxidation corrosion.
Metal buttons generally use a rack plating/barrel plating process and then do not fade the protective film on a layer, but this layer of protective film wears off after a long period of use. The role of nail polish and protective film is almost the same
1, this is not oxidation, is a button metal to corrosion, (the leather contains acid). This is to do special treatment during the production of buttons. At present, the button oxidation protection technology we produce still has a certain degree of functionality.
2, it may be that the metal zipper plating process is not good, it may also lead to fade.
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