초록 ▼

The invention describes a smoking article (1) comprising a wrapper (3) enwrapping a tobacco smoking material (2), the wrapper comprising a ceramic material and being capable of mechanically trapping mainly aqueous particulate phase materials in the sidestream smoke, thereby reducing sidestream smoke

The invention describes a smoking article (1) comprising a wrapper (3) enwrapping a tobacco smoking material (2), the wrapper comprising a ceramic material and being capable of mechanically trapping mainly aqueous particulate phase materials in the sidestream smoke, thereby reducing sidestream smoke deliveries considerably despite the use of the wrapper with conventional tobacco materials.

대표청구항 ▼

1. A smoking article comprising a wrapper material enwrapping a smoking material comprising at least 50% tobacco, said wrapper comprising a binder, a material selected from the group consisting of a burn additive, ash improver, and combinations thereof, said wrapper further having particles of ceram

1. A smoking article comprising a wrapper material enwrapping a smoking material comprising at least 50% tobacco, said wrapper comprising a binder, a material selected from the group consisting of a burn additive, ash improver, and combinations thereof, said wrapper further having particles of ceramic filler selected from the group consisting of non-activated alumina, silica, alumina-silicate, silicon carbide, stabilized zirconium oxide, un-stabilized zirconium oxide, zircon, garnet, feldspar, and combinations thereof, said particles of ceramic filler having a predefined shape and being present in a range of about 50-95% by weight of dry materials in a slurry producing said wrapper.2. A smoking article according to claim 1, wherein said wrapper is a green ceramic wrapper.3. A smoking article according to claim 1, wherein said predefined shape of said particles of ceramic filler is spherical, substantially spherical, oval, substantially oval, or another irregular shape approximating thereto.4. A smoking article according to claim 1, wherein said particles of ceramic filler have a mean particle size in a range of about 2-90 μm.5. A smoking article according to claim 4, wherein said particles of ceramic filler have a mean particle size in a range of about 2-75 μm.6. A smoking article according to claim 5, wherein said particles of ceramic filler have a mean particle size in a range of about 25-70 μm.7. A smoking article according to claim 6, wherein said mean particle size of said particles of ceramic filler is greater than 30 μm.8. A smoking article according to claim 7, wherein said mean particle size of said particles of ceramic filler is greater than 35 μm.9. A smoking article according to claim 8, wherein said mean particle size of particles of ceramic filler is about 50 μm.10. A smoking article according to claim 1, wherein said particles of ceramic filler have a non-platelet particle shape.11. A smoking article according to claim 1, wherein said particles of ceramic filler are an insoluble or low solubility metal oxide or metal salt.12. A smoking article according to claim 1, wherein said particles of ceramic filler are present in a range of about 70-90%.13. A smoking article according to claim 1, wherein said particles of ceramic filler are present in a range of about 70-87.5%.14. A smoking article according to claim 1, wherein said particles of ceramic filler arc not an activated filler.15. A smoking article according to claim 1, wherein said binder is an organic binder.16. A smoking article according to claim 15, wherein said organic binder is one or more of an alginate, a gum, a modified cellulose, a natural cellulose, a pectin or pectinaceous binder, starch, or the Group I or II metal salts of these binders.17. A smoking article according to claim 1, wherein said binder is an inorganic binder.18. A smoking article according to claim 17, wherein said organic binder is an activated inorganic material.19. A mucking article according to claim 1, wherein said binder is present in a range of about 2-30% by weight or dry materials in said slurry.20. A smoking article according to claim 19, wherein said binder is present in a range of about 3-10%.21. A smoking article according to claim 1, wherein said wrapper has a permeability of <200 Coresta Units (C.U.).22. A smoking article according to claim 21, wherein said wrapper has a permeability in a range of about 5-50 C.U.23. A smoking article according to claim 1, wherein said wrapper has a density in a range of about 0.5-3.0 g/cm3.24. A smoking article according to claim 1, wherein said smoking material is cut tobacco comprising cut lamina and stem.25. A smoking article according to claim 1, wherein said smoking material comprises one or more of reconstituted tobacco material, non-tobacco material or alternative smoking materials.26. A smoking article according to claim 1 wherein said wrapper has a burn additive.27. A smoking article according to claim 1 wherein said wrapper has an ash improver.28. A smoking article comprising a wrapper material circumscribing a smoking material, said wrapper having particles of ceramic filler of predefined shape, a binder, a bum additive in a range of about 1-15% by weight of dry materials in a slurry used to produce said wrapper and an ash improver in a range of less than 5% by weight of said wrapper, said particles of ceramic filler being selected from the group consisting of non-activated alumina, silica, alumino-silicate, silicon carbide, stabilized zirconium oxide, un stabilized zirconium oxide, zircon, garnet, feldspar, and combinations thereof and being resent in a range of about 50-95% by weight of dry materials in said slurry producing said wrapper.29. A smoking article according to claim 28 wherein said particles of ceramic filler have a mean particle size in a range of about 25-70 μm.30. A smoking article according to claim 28 wherein said mean particle size of said particles of ceramic filler is about 50 μm.31. A smoking article according to claim 28 wherein said binder is one or more of an alginate, a gum, a modified cellulose, a natural cellulose, a pectin or pectinaceous binder, starch, or the Group I or II metal salts of these binders.32. A smoking article according to claim 31, wherein said binder is present in a range of about 3-10%.33. A smoking article according to claim 28 wherein said burn additive is selected from one or more of salts of Group I or II metals.34. A smoking article according to claim 28 wherein said wrapper has a permeability in a range of about 5-50 C.U.35. A smoking article according to claim 28 wherein said wrapper has a density in a range of about 0.5-3.0 g/cm3.36. A smoking article comprising a wrapper material enwrapping a tobacco smoking material, said smoking material has at least 50% tobacco, said wrapper has a material selected from the group consisting of a burn additive, as improver, and combinations thereof, said wrapper further has a binder and particles of ceramic filler, said particles of ceramic filler being present in a range of about 50-95% by weight of dry materials in a slurry producing said wrapper.37. A smoking article according to claim 36, wherein said burn additive is present in a range of about 1-15% by weight of dry materials in said slurry used to produce said wrapper.38. A smoking article according to claim 37, wherein said burn additive is present in a range of about 2-5%.39. A smoking article according to claim 38, wherein said burn additive is selected from one or more of salts of Group I or II metals.40. A smoking article according to claim 38, wherein said burn additive is a burn promoter.41. A smoking article comprising a wrapper material circumscribing a tobacco smoking material, said smoking material having at least 50% tobacco, said wrapper having particles of ceramic filler of predefined shape, a binder, a burn additive in a range of about 1-15% by weight of dry materials in a slurry used to produce said wrapper and an ash improver in a range of less than about 5% by weight of said wrapper, said particle of ceramic filler being present in a range of about 50-95% by weight of dry materials is in said slurry producing said wrapper.42. A smoking article according to claim 41, wherein said ash improver is present in said wrapper in a range of up to 5% by weight of dry materials in said slurry used to produce said wrapper.43. A smoking article according to claim 42, wherein said ash improver is one or more of mica, chalk, perlite, or clays.