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Zippers play a crucial role in the production of clothing, footwear, and accessories. Their reliability defines the overall quality of the final product. That\u2019s why Molniya<\/a><\/span> places special emphasis on thorough zipper strength testing and zipper durability testing. These procedures are carried out in the company’s own accredited laboratory, equipped with high-precision German and Japanese machines. They allow for physical and mechanical testing at every stage of manufacturing <\/span>\u2014<\/span> from raw material inspection to final product quality control.<\/span><\/p>\n One of the key procedures in testing zippers for strength is the assessment of the breaking force of closed zipper elements. This test simulates real-life usage conditions and evaluates how well the chain links hold under high tension. The zipper is mounted in a testing machine that gradually increases the load until the chain breaks. The results determine whether the zipper meets local (DSTU) and international standards of strength and whether it can withstand the loads expected during actual use.<\/span><\/p>\nTesting a woven zipper for chain strength<\/b><\/h2>\n