Abstract: The invention relates to the field of cleaning and disinfection of hard surfaces. The cleaning and disinfection of the surfaces is achieved by means of a deaning textile and an aqueous preparation, comprising disinfection agents and additives selected from a group comprising a quatemary ammonium compound of formula (II), polydialkyldiallylammonium salts and derivatives thereof and the copolymers of dialkyldiallylammonium salts with acrylamide, and/or acrylic acid, and/or vinyl acetate, and derivatives thereof. The invention further relates to an aqueous concentrate, an aqueous preparation produced therefrom and a method for the reduction of active ingredient losses in disinfection solutions when using said concentrate.

Abstract: The invention relates generally to the cleaning and disinfection of hard surfaces. The surfaces are cleaned and disinfected with a cleaning textile and a water-based preparation containing disinfectants and additive. More particularly, the invention relates to a water-based concentrate, to a water-based preparation made up therefrom and to a process for reducing the loss of active substance from disinfectant solutions using the concentrate.