Double wrapped cigarettes with reduced spotting and method of ma

Details Double wrapped cigarettes with reduced spotting and method of ma Double wrapped cigarettes with reduced spotting and method of ma

1990-08-13

1992-09-01

Millin, V.

Tobacco

Tobacco or tobacco substitute product or component part thereof

Cigar or cigarette

131331, A24D 102

Patent

active

051430991

ABSTRACT:
The invention concerns cigarette spotting.
To reduce or prevent cigarette paper spotting, the cigarette is provided with an inner wrapper placed between the tobacco column and the external envelope, this inner wrapper being a paper made of cellulose fibers, with a basis weight at the utmost equal to 30 g/m.sup.2, presenting pores made during paper manufacture, or perforations made after manufacture in such a way that the air permeability is at leaste 500 Coresta units.
This invention applies to all cigarettes and similar smoking products.

REFERENCES:
patent: 3633589 (1972-01-01), Kahane et al.
patent: 4366826 (1983-01-01), Horsewell
patent: 4505282 (1985-03-01), Cogbill et al.
patent: 4561454 (1985-12-01), Guess
patent: 4615345 (1986-10-01), Durocher
patent: 4622983 (1986-11-01), Matthews et al.
patent: 4779631 (1988-10-01), Durocher et al.
patent: 4911184 (1990-03-01), Case et al.
patent: 5007439 (1991-04-01), Chumney, Jr.
Annales Du Tabac (Paris) vol. 14, 33-43 (1976).
Investigations on the Internal Structure of Cigarette Paper W/Use of Mercury Porosimetry, Comm. to Coresta Congress, 1976, Tokyo Coresta Information Bulletin (3-4) 40-41 (1975).
W. F. Owens Recent Advances in Tobacco Science (4) 3-24 (1978) and Specifically 19-21 describing Poiseville law and Bernouilli theorem.

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