FIELD: tobacco industry.
SUBSTANCE: low-flammability cigarette paper is intended for smoking materials. It contains a base with areal density more than 22 g/m2 and many burning limiting areas which are spread over base cigarette paper surface. Burning limiting areas are made by application of sodium alginate with polymerisation degree from approx. 500 to approx. 900 or by application of 3% sodium alginate water solution with density degree 19000 centipoise or more at 25°C. Low-flammability base-containing cigarette paper contains filler in quantity 2 g/m2 or more, have air permeability from 30 to 60 KOREST units and sodium alginate is applied in quantity less than 3 g/m2.
EFFECT: flammability lowering.
14 cl, 1 dwg, 2 tbl
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