Lightweight Separating Base Paper
Assigneedelfortgroup AG
InventorTuomas Turtola
Life of this patent
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Assigneedelfortgroup AG
InventorTuomas Turtola
Estimating the term…
The invention relates to a separating base paper, having a mass per unit area of at least 25 g/m2 and at most 40 g/m2 and a density of at least 0.90 g/cm3 and at most 1.15 g/cm3. The separating base paper comprises at least 50 wt % of long-fiber pulp and is coated on at least one side with at least two coatings. The first coating is located between a paper surface and the second coating. The second coating is a topmost coating and comprises a water-soluble film-forming polymer, nanofibrillated cellulose, microfibrillated cellulose or nanocrystalline cellulose. The Cobb-Unger (120 s) value of the surface having said first and second coatings is at least 0.01 g/m2 and at most 0.90 g/m2.
Smoking article comprising a smokable material, which is capable of generating an aerosol upon combustion or heating, wherein the smokable material is wrapped with a paper serving as a wrapping material, said paper having a basis weight of at least 25 g/m2 and at most 40 g/m2, and is coated with a density of a at least 0.90 g/cm3 and at most 1.15 g/cm3, wherein the release base paper comprises at least 50% by weight softwood pulp and is coated on at least one side with at least two coatings,
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Smoking article according to claim to, wherein said water-soluble film-forming polymers are formed by starch, starch derivatives, cellulose derivatives or latex.
Dependencies are inferred from the claim text.