YKK dealers, large Langla chain, YKK zipper preferred Rui Shi

YKK metal zipper color - Leather goods in the production process of genuine leather YKK zippers, tanning agents such as sulfuric acid; carbonate; chromium compounds; tannins and aldehyde compounds are generally chemicals will be used. When these tanning chemicals in contact with the metal zipper, it may cause a metallic color. And this color is more likely because the air does not circulate or genuine YKK zipper in a closed state, and or high temperature environments and at the squeezed state of conservation and to accelerate the rate of discoloration. In order to avoid appearing in the use of metal zipper on leather discoloration YKK dealer, please note the following precautions: leather processing and after must be thoroughly washed and leather elements. Avoid metal zippers and leather products packaged together in an enclosed or poorly ventilated environment. Please try to avoid contact with metal zippers or leather Overlaid on the zipper. Strength check standard zip fastener strength, there are a variety of inspection methods, basic strength can be used to check the results of the following methods to represent income from these results to determine appropriate use of the comprehensive strength of the fastener. (According to JIS-S3015 and ASTM D2061 requirements) Tension test machine: tensile speed 300mm / min, clip width 25mm YKK zipper JIS except through a strength test, but also in full compliance with the provisions of the UK durability standards. YKK dealers, large 朗拉 chain, YKK zipper preferred 瑞仕 provided by the Dongguan City 瑞仕 Trading Limited.瑞仕 Trade Co., Ltd. of Dongguan City (www.risiykk.com) (www.risiykk.com) strong, credible, zippers and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Rui Shi zipper hardware into the brilliant and you work for a better future!