New device in order to establish a zone of it is the air predetermined in a strip of material covering for the articles in the form of sticks of the treatment of the tobacco industry.

摘要

P device in order to provide such a zone of the permeability. / p & & p & the machine comprises a transverse conveyor, produced in the form of a drum of the tread 424, which is associated with a corresponding bearing surface 439, driven in opposite directions of the drum. This article, in the region where it is in a fixed position, is subjected during its rotation, to the action of a source of coherent radiation 447. / p & & p & application: treatment of the tobacco. / p