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Often used in the context of dyeing in the textile industry, color fastness refers to the color resistance of certain materials to bleed or fade. In general, color fastness tests should be performed before cleaning products are used.Color fastness can be basically classified as;Washing Fastness: It varies from Level 1 to Level 5. A higher lev..

The durability of the zipper is the most important physical performance index that determines the usage range and durability of zippers. There are clear provisions on zipper strength in zipper standards of different countries around the world, which are also the basis for testing the quality of zippers. Zippers with varying specifications and typ..

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Measurement StandardsThe physical performance of zippers can be measured and determined in a variety of ways, depending on zipper types and desired end use or applications. There are several internationally accredited Test Standards that we zipper manufacturers and suppliers refer to, including but not limited to:ASTM D2051-D2054, D2057-D2062..