Metal closures used in leather goods may show a change in the metallic finish due to chemical agents applied to the leather that are not properly washed or neutralized. Chemicals used in the dyeing and bleaching of garments may cause a change in the color of the metal elements of the closure or lead to a problem with stain migration. Metal closures subjected to harsh denim washes (enzyme and stone washing) may be affected by chemical and physical abrasion. Before proceeding to production, it is recommended that you conduct production tests and trials for all uses / applications of closures to verify that the product meets the requirements of the end customer and the demands of internal processing conditions. Rubí Industria de Cremalleras supports customers with advice on individual applications upon request. If you have any questions or concerns, please do not hesitate to contact us.