procedure and means for tvettning and rengoring of surface of solid materials, in particular textiles

摘要

A method of washing soiled textiles, wherein the soiled textiles are immersed in an aqueous liquor which contains at least one compound inhibiting alkaline earth metal ion precipitation on said soiled articles comprising using finely-dispersed, water-insoluble silicate compounds having a calcium-binding power of at least 50 mg CaO/gm of anhydrous active substance and having the formula, combined water not shown (M2/nO)x ? Me2O3 ? (SiO2)y where M is a gallon of the valence n, exchangeable with calcium, x is a number of from 0.7 to 1.5, Me 18 a member selected from aluminum and boron and y 18 a number of from 0.8 to 6, as said compound inhibiting alkaline earth metal ion precipitation; as well as washing compositions containing said silicate compounds.