Process of obscuring glass, comprises immersing glass surface object in composition comprising viscosifying agent, water-soluble bifluoride compound, insoluble filler in water, surface-active agent, water-soluble salt and water

摘要

Process of obscuring glass, comprises immersing the glass surface object for 2-20 (preferably 2-10) minutes in a composition, comprising a viscosifying agent (0.025-1.25 wt.%), a water-soluble bifluoride compound (10-49.975 wt.%), an insoluble filler in water (0-39.975 wt.%), a surface-active agent (0-5 wt.%), a water-soluble salt (0-39.975 wt.%) and water (50-75 wt.%).