Cigarette filter rod elements and cigarettes incorporating such

Details Cigarette filter rod elements and cigarettes incorporating such Cigarette filter rod elements and cigarettes incorporating such

1989-10-12

1990-11-27

Millin, V.

Tobacco

Smoke separator or treater

Interior surface causes particular flow characteristic

131340, A24D 304

Patent

active

049728539

ABSTRACT:
A cigarette filter rod element including an axially extending barrier tube of micro-fine fibres with a diameter of between 0.5 and 10 microns and located so that at least part of the gas flow passes through the wall of said barrier tube.

REFERENCES:
patent: 3046994 (1962-07-01), Schuv
patent: 3621851 (1971-11-01), Heskett et al.
patent: 3685523 (1972-08-01), Labbe
patent: 3854384 (1974-12-01), Naylor
patent: 4809717 (1989-03-01), Imbery
patent: 4869275 (1989-09-01), Berger
patent: 4896682 (1990-01-01), Liew

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