Abstract: An apparatus and a method for applying a liquid active substance onto surfaces moving in a circulating manner, including a metering unit with a pipe system and an application unit. The active substance is conducted to the application unit by the metering unit, and the application unit has a pad with an open-pore mesh structure for receiving and storing the active substance and for applying the active substance onto a moving surface as a film as a function of the degree of saturation and the contact pressure of the pad on the moving surface. Brackets fix the pad in a working position when pushed together and are capable of being pulled apart to exchange the pad. Also, the use of the apparatus for keeping the moving surfaces free from deposits, accumulations or contaminants.

Abstract: An apparatus and a method for applying a liquid active substance to surfaces moving in a circulating manner, such as of cylinders, rolls, fabrics or other moving webs, consisting of a metering unit and an application unit. The active substance is conducted to the application unit by the metering unit, and the application unit has a pad with an open-pore mesh structure for receiving and storing the active substance and for applying the active substance as a film as a function of the degree of saturation and the contact pressure of the pad on the moving surface. Also, the use of the apparatus for keeping moving surfaces free from deposits, accumulations or contaminants.

Abstract: A coating mix for the production of coated paper and board is described in form of an aqueous dispersion with a solids content of 50 to 80% consisting of pigments, binders, and additives. The coating mix exhibits thixotropic flow characteristics and is characterized by the usage of special amine-group or amide-group containing polymers, which act as protective colloids for the pigment particles. The coating mix contains preferably between 0.1 to 1 weight percent of a grafted gelatin.