Manufacture of smoking articles with ventilated mouth pieces

Details Manufacture of smoking articles with ventilated mouth pieces Manufacture of smoking articles with ventilated mouth pieces

A - Human Necessities

24

D

131/11, 131/21

A24D 3/04 (2006.01)

Patent

CA 1283832

"Manufacture of Smoking Articles With Ventilated Mouth Pieces" A B S T R A C T There is disclosed a method of operating on a cigarette, which comprises a tobacco rod and a filter element interattached by a thermoplastic tipping wrapper, to allow for the ingress of ventilation air. The filter element also comprises ventilation duct(s) extending therewithin. A heated former is brought into contact with the tipping wrapper in such a way as to form indentations which intersect with a ventilation duct(s) of the filter element and to seal upstream end portions thereof.

526044

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