Solid agent for the treatment of keratinous fibres

摘要

The invention relates to agents for the treatment of keratinous fibres which are frequently in the form of solid agents mixed with water before use. The aqueous solution has particularly good mixing behaviour and very good application properties when the solid agent contains 5 - 80 wt% of a solid inert ingredient, the 20 wt% solution or dispersion thereof in water at 20 DEG C having a viscosity which does not exceed 500 mPa s. Preferred embodiments are hair dyes and hair bleaching agents. The invention also relates to a special method for producing said solution and a commercially-used unit appropriate for said method.