Tobacco-smoke filters

Details Tobacco-smoke filters Tobacco-smoke filters

1973-08-22

1976-01-20

Reich, Joseph S.

Tobacco

Tobacco users' appliance

Supports

93 1C, 93 77FT, A24c 550

Patent

active

039331601

ABSTRACT:
This invention concerns improvements relating to tobacco-smoke filters, particularly cigarette filters, and to a method and apparatus for their production. According to the invention in a tobacco-smoke filter composed of absorbent paper and a filtering composition comprising a tow of fibrous or filamentary material, such as cellulose acetate, fibrillated or filamentary polypropylene, viscose or the like, associated with the paper in superimposed layers which are rolled or folded substantially parallel to the longitudinal axis of the filter, the absorbent paper and filtering composition are in the form of strips extending longitudinally of the filter, the filtering-composition strip having a greater width than the paper strip and being so associated with the paper strip that it covers one face of the latter and is folded over along the two longitudinal edges of the paper strip to cover at least part and preferably the whole of the other face thereof.

REFERENCES:
patent: 2064239 (1936-12-01), Aviaz
patent: 2159121 (1939-05-01), Alley
patent: 2916039 (1959-12-01), Muller
Hawkins, Def. Pub. Search Copy of Serial No. 775,576, CL 131-10.7X, Filed 9-12-1965, Published in 860 06 1007, Def. Pub. No. T860,013.

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