Process for the treatment of textile materials, especially knitted fabric, constituted by fibers, filaments or threads of elevated linear polymers, such as polyexamethylene adipamide, characterized by wetting said materials with 6 to 20 times their dry weight of a composition formed by an acidic diluted aqueous solution, with a ph comprised between 3 and 6.5, containing: a) from 0.025% to 0.4% by weight of colloidal silica and b) from 0.3% to 7% by weight of a water-soluble salt selected from the group consisting of the ammonium and alkali metal salts of the hydrochloric and sulfuric acids; until practically all the colloidal silica present in said composition migrates from said composition and deposits on said textile materials, whereby said composition is practically free of colloidal silica, then said textile material is dried. (Machine-translation by Google Translate, not legally binding)
展开▼
