Tobacco filters and method of producing the same

Details Tobacco filters and method of producing the same Tobacco filters and method of producing the same

1997-05-16

1999-09-07

Mullis, Jeffrey C.

Tobacco

Smoke separator or treater

Having a polymer

131342, 131343, 131345, A24D 300, A24D 302, A24D 306, A24D 310

Patent

active

059471271

ABSTRACT:
A filter rod is produced by adding a water-soluble polymer in the form of an aqueous solution or dispersion, or in a particulate form, to a tow of cellulose ester fiber, with the amount of any water used being controlled within 25 parts by weight relative to 100 parts by weight of the tow, and wrapping the treated tow in wrapping paper. The water contained in the filter rod is removed or the particulate water-soluble polymer is melted by heating to bond the fiber to provide a tobacco filter. The proportion of the water-soluble polymer is 0.5 to 30 parts by weight to 100 parts by weight of the tow. To reduce the amount of water relative to the tow, a hot-melt adhesive water-soluble polymer may be employed. As the amount of water added to the tow is thus decreased, the tow can be smoothly wrapped up even at a high speed so that filter productivity is improved. This tobacco filter is highly wet-disintegratable and, hence, contributes to mitigation of the environmental pollution.

REFERENCES:
patent: 3365346 (1968-01-01), Fritz et al.
patent: 4022740 (1977-05-01), Morie et al.
patent: 4074724 (1978-02-01), Morie et al.
patent: 4357188 (1982-11-01), Machida et al.
patent: 4379465 (1983-04-01), Coq
patent: 5022964 (1991-06-01), Crane et al.
Nakatsuka et al., CA Abstract 78:121,618, Abstracting DE 2140346 (1973).

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