Production of tobacco smoke filter rod

Details Production of tobacco smoke filter rod Production of tobacco smoke filter rod

1974-06-20

1976-03-16

Coan, James F.

Tobacco

Tobacco users' appliance

Cigar tip perforators or slitters

93 1C, 131261R, A24C 550

Patent

active

039438350

ABSTRACT:
The invention relates to a method for wrapping a continuous filter rod and producing tobacco-smoke filter sections which comprises feeding a wrapping strip of a thermoplastics film material, particularly a heat-shrinkable thermoplastics material, past an applicator for applying adhesive to the edges of the strip and, together with a filtering medium, to garniture means for wrapping the said strip around the said medium, which means includes a sealing station consisting of or comprising a cooled long folder, provided with a semicylindrical groove closely matching the rod size and of a length sufficient to permit setting of the adhesive to form a seam between the said edges, and feeding the wrapped rod thus produced to a cut-off device with guiding means for the cut-off sections. Preferably the adhesive is a solvent for the thermoplastics material.

REFERENCES:
patent: 3060814 (1962-10-01), Wagner et al.
patent: 3128680 (1964-04-01), Schaaf, Jr.
patent: 3373750 (1968-03-01), Beam
patent: 3405717 (1968-10-01), Berger et al.
patent: 3485144 (1969-12-01), Willis et al.
patent: 3824906 (1974-07-01), Vanhall

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