High porosity carbon coated cigarette papers

Details High porosity carbon coated cigarette papers High porosity carbon coated cigarette papers

1979-03-08

1980-09-30

Lusignan, Michael R.

Coating processes

Foraminous product produced

131 1, 131 7, 131 9, 131 15R, 427395, B05D 302, B05D 500, A24D 102, A24D 108

Patent

active

042256364

ABSTRACT:
A method for producing high porosity, high carbon content cigarette papers in which a paper substrate having an initial Filtrona porosity of at least 10,000 air permeability units is coated with an aqueous suspension containing from 10 to 50% by weight finely divided carbon, up to 3% by weight of a water-soluble binder, and from 0.5 to 3% by weight of an alkali metal carbonate and thereafter dried resulting in a coated paper having a Filtrona porosity of not less than 5,000 air permeability units. Carbon coated cigarette papers made in accordance with the foregoing method may be used as the inner wrapper for the tobacco column of a cigarette in combination with an outer wrapper of porous or perforated cigarette paper to provide substantial reductions in the constituent yields in the mainstream and sidestream smoke emanating from the cigarette without increasing the carbon monoxide yield obtained in the smoke from the cigatette when compared to conventional cigarettes containing a single wrap of standard cigarette paper.

REFERENCES:
patent: 2755207 (1956-07-01), Frankenburg
patent: 2998012 (1961-08-01), Lamm
patent: 3744496 (1973-07-01), McCarty et al.
patent: 4112154 (1978-09-01), McCarty et al.

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