Why Metal Zipper will fade Metal Zipper color change reasons

The chemical properties of the copper alloy in the Metal Zippers are chemical reaction and easy discoloration when encountering acid, alkali, oxidant or reductant. Zippers may discolor when chemical residues on the clothing material chemically react with the fastener elements, slider or open end of the Zipper Metal. This chemical reaction is more likely to occur under hot and humid conditions (steaming of the sewn product, hermetically packaged in plastic bags and stored for a long time, etc.). This situation does not belong to the Zipper quality problems. Chinese clothing accessories network Xiaobian share Metal Zippers discoloration causes and prevention methods! First, the copper alloy (copper, copper, brass) made of Metal Zipper color change reason: used in metal products or wool products When the Metal Zip will be part of the metal oxide 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. Chemical reaction example: oxidized bleaching agent (H2O2) → black (CuO) or red (CuO2); Second, the bungee banding metal zipper discoloration reasons: rubber band itself contains sulfide, bungee banding metal zipper, the metal Splinter will produce vulcanization (darkening). Examples of Chemical Reactions: Excessive Sulfide or HS2 Gas Conditions → Black [CuS] III. Causes of discoloration due to contact with acidic or chromium compounds. Examples of chemical reactions are acidic compounds and chromium compounds [Cr2O3] → black [CuO, red [CuO2] or blue [CuSO4]. Four, hanging electric zipper discoloration reasons: Although the Zipper Head hanging anti-rust treatment has been done in advance, but the oxidation is a metal property, in order to reduce discoloration and surface scraping flowers, please zipper head wrapped with copy paper. Examples of chemical reactions: wet weather or steam → blue [Cu (OH) 2]. How to prevent metal zipper discoloration? 1, to avoid the metal zipper and acidic, alkaline, oxidant or reductant contact. 2, to avoid a long time ironing clothes or long-term sealed packaging in plastic bags, because the clothing residual chemicals in the high temperature, high humidity conditions easier with the metal zipper teeth, pull the head, the tail part of the chemical reaction Cause discoloration If necessary, use moisture-proof paper, moisture-proof metal zipper to reduce the degree of chemical reaction. 3, the correct method of washing: before washing or drying into the dryer, the zipper closed, the slider fixed. If you open the washing, the top of the top will damage the fabric, and the tape will shrink. Alkaline detergents or chlorinated bleaches coat the Metal Zipper with paraffin or oil film.