Cigarette paper with filler material with special particle size distribution
Assigneedelfortgroup AG
InventorsDieter Möhring, Roland Zitturi, Kannika Pesendorfer, Dietmar Volgger
Life of this patent
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Abstract
A cigarette paper is disclosed which contains pulp fibres and filler material particles, wherein at least 50% by weight, preferably at least 70% by weight and particularly at least 90% by weight of the filler material has a particle size distribution measured in accordance with ISO 13320 for which for the distribution parameter p=d10+2·d30+2·d70-d90 holds: p≦5.0 μm, preferably p≦4.0 μm and particularly preferably p≦3.5 μm, and p≧−1.0 μm, preferably p≧0.0 μm and particularly preferably p≧1.0 μm.
Claims14
Cigarette paper which contains pulp fibers and filler material particles, wherein at least 90% by weight of the filler material has a particle size distribution, measured in accordance with ISO 13320 with Mie-correction for calcite, for which the distribution parameter p=d10+2·d30+2·d70-d90 holds:
- p≦5.0 μm, and
- p≧−1.0 μm, wherein said cigarette paper has an air permeability of x Coresta Unit and a diffusion capacity D*x for CO2, wherein D*x·√{square root over (50)}/√{square root over (x)}≧1.80 cm/s, in which the basis weight is between 10 g/m2 and 60 g/m2, and in which the paper is treated with burn-retardant materials in discrete areas which are suitable for providing a cigarette manufactured from the paper with self-extinguishing properties.
Cigarette comprising a tobacco rod and a cigarette paper wrapping the tobacco rod, wherein the cigarette paper
- contains pulp fibers and filler material particles, wherein at least 90% by weight of the filler material has a particle size distribution, measured in accordance with ISO 13320 with Mie-correction for calcite, for which the distribution parameter p=d10+2·d30+2·d70-d90 holds:
- p≦5.0 μm, and
- p≧−1.0 μm, wherein said cigarette paper has an air permeability of x Coresta Unit and a diffusion capacity D*x for CO2, wherein D*x ·√{square root over (50)}/√{square root over (x)}≧1.80 cm/s, in which the basis weight is between 10 g/m2 and 60 g/m2, and in which the paper is treated with burn-retardant materials in discrete areas which are suitable for providing the cigarette with self-extinguishing properties.
Dependencies are inferred from the claim text.