Cigarettes

Details Cigarettes Cigarettes

1976-09-30

1978-05-09

Michell, Robert W.

Tobacco

Cigar or cigarette making

Including cooperating surfaces to induce rolling

131 15B, A24D 102, A24B 1500

Patent

active

040881423

ABSTRACT:
The invention is concerned with a wrapped cigarette and a method of producing the wrapper. A very highly porous wrapping paper, with an air porosity within the range from 2,450 to 20,000cm.sup.3 min.sup.-1 10cm.sup.-2 10cmWG.sup.-1 is produced by perforation from a base paper having a tensile breaking strength of not less than 85 g per mm width of paper. The means number of perforations is suitably within the range from 10 to 150 per cm.sup.2 of the paper and the mean diameter within the range from 30 to 200 microns. A cigarette wrapped in the highly porous paper may advantageously be provided with a tobacco-smoke filter having a filtration efficiency for nicotine within the range of 15 to 30%.

REFERENCES:
patent: 2269995 (1942-01-01), Trane
patent: 2304009 (1942-12-01), Muth
patent: 3046994 (1962-07-01), Schur
patent: 3475591 (1969-10-01), Fujii
Tobacco, Publication Date of 9/28/73; pp. 26 & 28 cited; "Low-tar-nicotine Content Design" by Samfield.
Tobacco, Publication date of 6/5/1970; pp. 17-20 cited; "Alteration of Cigarette Smoke Composition II. Influence of Cigarette Design" by Terrell et al.
Tobacco and Tobacco Smoke by Wynder et al.; Academic Press, N. Y. & London, 1967 p. 537 cited.

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