any desired distance from the applicator device 6 wall 55 may be specially profiled to form a channel 53 through which the foam can most expeditiously flow downwards rear wall 52 is supported via a sealing strip 152 on the surface of the roller squeegee 6 the seal is adjustable to keep it tight this wall also is supported on a traverse member which can be secured to the left and right of the workpiece in the machine frame suction device 4 is similar to the one in fig1 the embodiment of fig3 has another roller squeegee as the applicator device 6 but it has a stationary container 5 and therebelow a suction device 4 the figures all show that the printing blanket 3 can be guided over rollers 30 31 evidently it is both air and liquid permeable the rollers for it can be driven continuously or discontinuously the former is generally preferred the low grade vacuum whose strength can be controlled removes air from the workpiece so that a uniform resistance free entry of the liquid into the workpiece is obtained all embodiments show a napped workpiece because the invention is particularly advantageous for such material the suction generating device may also be an area spanning box due to the adjustability of.