Changshou QiDian zipper Co., Ltd.
Contact: Mr. Jiang
Address: Changshu City, Jiangsu Province, Mo East Village East
No. 88 Green Road
Metal zipper with a long time after the discoloration of the reasons?
a, copper alloy (copper, copper, brass) made of metal zipper Color change reasons: When used in metal products or wool products, the metal zipper due to metal oxidation caused some of the teeth blackening phenomenon. This is because the manufacture of leather and leather products mature ...
a, copper alloy (white copper, copper, brass) made of metal zipper color change reasons:
Used in metal products or wool products, the metal zipper due to metal oxidation caused some of the teeth blackening phenomenon. This is because the manufacturing leather leather products and wool products on the processing of bleaching agent, the process remains in the product, the gas products will cause the metal zipper discoloration. Metal zipper manufacturers
Examples of chemical reactions: oxidized bleach (H2O2) → black (CuO) or red (CuO2);
B, bungee banding metal zipper discoloration reasons:
Rubber band itself contains sulfides, rubber bands tied metal zipper, the metal chain will produce curing phenomenon (dark).
Examples of chemical reactions: Excessive sulfide or HS2 gas conditions → Black [CuS]
C, discoloration due to contact with acidic compounds or chromium compounds.
Examples of chemical reactions are acidic compounds and chromium compounds [Cr2O3] → black [CuO, red [CuO2] or blue [CuSO4].