Aq. cleaning dispersion for pressure-washing vehicles - contains surfactant and aluminium silicate having high calcium bonding capacity and dirt absorption

摘要

Aq cleaner dispersion for press.-washing vehicles contains a surfactant resistant to hard water, and a finely-divided Al silicate having a Ca bonding capacity of 50-200 (80-175)mg CaO/g anhydrous active substance and formula (Cat2/nO)x.Al2O3.(SiO)2y (I) (where Cat is a non-surfactant cation, capable of exchange with Ca and having valency n; x is no. 0.7-1.5, esp. 0.9-1.3; and y is no. 0.8-6, esp. 1.3-4). Mixts. are used partic. for cleaning buses and trains or trams. Dirt is removed without damag ing lacquer. (I) have a high absorption capacity for dirt and water-hardeners. Addn. of further surfactant improves draining on cleaned surface, and drying without striation and cloudiness.