Process for producing plastic sealing sheets with internal nonwoven fabric

摘要

According to the invention, a plastic sealing sheet with internal nonwoven fabric is produced by first of all, with a vertical arrangement of the calender rolls in a trio frame, moving the nonwoven fabric into a nip between two calender rolls and there coating it on one side with plasticated plastic material and subsequently moving it in the coated state into the other roll nip and there providing the side which is still uncoated with a further plastic layer.