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Metal Zipper Discoloration?

Jun 21, 2017

Under normal circumstances, copper alloy with acid, alkali, oxides, reducing substances and sulfide reaction, the formation of colored salts. When the chemical elements in the surrounding fabric are very full, the metal parts of the zipper, such as the teeth, the pull head, the upper and lower ends and the opening of the gold, will be discolored, and such chemical reactions easily occur under high temperature and humidity conditions The For example, if a product is directly packaged in a sewing process or packaged in a plastic bag for a long time, such chemical reactions may occur. The colored fabric that produces the reaction will undergo discoloration, and the sulfur-containing soft cloth will fade the copper alloy and produce a stain.

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