a second coating layer of a pigment substance immediately successive to the application of the first layer while the first layer is still moist application_number US 81874692 A description marked 1 in fig1 is the first web guide roll i e the one of the first coating device while 2 marks the pertaining press roll and 3 the web guide roll of the second coating device the threading of the web is marked w the first coating device features an applicator chamber 4 for the coating or pigment substance such as kaolin with the latter being fed into said chamber through the feed pipe 5 in this case the applicator chamber is fashioned as a nozzle chamber with an overflow permitting excess coating substance to flow into the collector tub 7 which is attached to the applicator chamber 4 pigment substance exits from the nozzle chamber and is applied on a portion of the shell surface of guide roll 1 not covered by the material web the applicator chamber 4 is held by a support beam 6 located on the exit end of the applicator chamber 4 in the direction of rotation of the web guide roll 1 is the dosing element a rolling blade 8 which preferably features a surface that is provided with peripheral grooves provided as second coating device is as well such an applicator chamber 13 with feed pipe 14 also available is a collecting trough 16 and a support beam.