Abstract: A coating for finishing paper or cardboard, with pigments in an aqueous dispersion including a binding agent in a portion of at least 7 percent by weight, preferably 9 to 15 percent by weight (depending on the pigment percentage). Also included is a thickener in a portion of 0.05 to 0.5 percent by weight, preferably 0.2 to 0.4 percent by weight (depending on the pigment percentage) and one surfactant in a portion of at least 0.1 percent by weight (depending on the pigment percentage), preferably 0.2 to 1 percent by weight. The solid content amounts to 50 to 75 percent by weight, preferably 55 to 65 percent by weight, and wherein the viscosity exhibited is no greater than 2500 mPas, preferably less than 500 mPas (Brookfield 100 UPM, 20° C.). A method for producing coated papers or cardboards, where the coating is thoroughly degassed prior to application.

Abstract: A coating for finishing paper or cardboard, with pigments in an aqueous dispersion including a binding agent in a portion of at least 7 percent by weight, preferably 9 to 15 percent by weight (depending on the pigment percentage). Also included is a thickener in a portion of 0.05 to 0.5 percent by weight, preferably 0.2 to 0.4 percent by weight (depending on the pigment percentage) and one surfactant in a portion of at least 0.1 percent by weight (depending on the pigment percentage), preferably 0.2 to 1 percent by weight. The solid content amounts to 50 to 75 percent by weight, preferably 55 to 65 percent by weight, and wherein the viscosity exhibited is no greater than 2500 mPas, preferably less than 500 mPas (Brookfield 100 UPM, 20° C.). A method for producing coated papers or cardboards, where the coating is thoroughly degassed prior to application.

Abstract: A metering system for the coating of webs of paper and cardboard uses a doctor bar received in an elastic bed which is urged toward the surface to be coated by a pressurizable bladder subdivided into compartments. An elastic continuous member between the diaphragm and the bed equalizes the pressure so that sudden changes in pressure in the regions between the compartments are eliminated.