Microperforated filter tip cigarette

Details Microperforated filter tip cigarette Microperforated filter tip cigarette

1977-06-29

1979-11-20

Millin, V.

Tobacco

Cigar or cigarette making

Including cooperating surfaces to induce rolling

131 11, 131261A, A24B 1502, A24D 104

Patent

active

041747194

ABSTRACT:
An improved ventilated filter tip cigarette is provided utilizing a unique combination of porous filter plug wrap having a porosity of from about 300 to 4000 Filtrona air permeability units with a microperforated tipping envelope having perforations averaging less than about 0.01 mm.sup.2 each in open area. The relationship of plug wrap porosity combined with the size of microperforations in the tipping envelope provide cigarettes with maximum selective reductions in carbon monoxide yields and only minor reductions in nicotine yields as compared to constituent yields heretofore obtained in the smoke from ventilated cigarettes.

REFERENCES:
patent: 3805800 (1974-04-01), Summers
patent: 4094324 (1978-06-01), Bolsinger et al.

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