Materials, equipment, and methods for manufacturing cigarettes
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A24D-001/02
D21H-011/00
D21H-013/00
D21H-015/00
D21H-017/00
D21H-019/00
D21H-021/00
D21H-023/00
D21H-025/00
D21H-027/00
A24C-005/00
A24C-005/34
출원번호
US-0537840
(2009-08-07)
등록번호
US-9220297
(2015-12-29)
발명자
/ 주소
Sebastian, Andries D.
Norman, Alan Benson
Chapman, Paul Stuart
Oglesby, Robert Leslie
Foor, Scott William
출원인 / 주소
R. J. Reynolds Tobacco Company
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
47
초록▼
Cigarettes are manufactured using modified automated cigarette making apparatus. Those cigarettes possess smokable rods having wrapping paper having additive materials applied thereto as patterns. The additive materials, which can include a starch and/or a polymer, are applied to a continuous paper
Cigarettes are manufactured using modified automated cigarette making apparatus. Those cigarettes possess smokable rods having wrapping paper having additive materials applied thereto as patterns. The additive materials, which can include a starch and/or a polymer, are applied to a continuous paper web either online or offline the cigarette making apparatus. The formulation can be applied to the paper web using application apparatus possessing a series of rollers. In particular, a wrapping paper for a smokable rod can include a pattern of bands having a water-insoluble material comprising a starch ester, a starch-coated inorganic filler, and/or a thermoplastic polymer in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of pressure to apply the bands, (b) decrease paper diffusivity, and (c) maintain paper opacity at a level acceptable for commercial production of the smokable rods.
대표청구항▼
1. A wrapping paper for a smokable rod comprising: a pattern of intermittent bands applied to a wire side surface of the wrapping paper,the bands comprising a water-insoluble material comprising a starch in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of
1. A wrapping paper for a smokable rod comprising: a pattern of intermittent bands applied to a wire side surface of the wrapping paper,the bands comprising a water-insoluble material comprising a starch in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of pressure to apply the bands,(b) decrease paper diffusivity, and(c) maintain paper opacity at a level acceptable for commercial production of the smokable rodswherein the starch in the water-soluble material comprises a starch-coated inorganic filler, and the starch-coated inorganic filler comprises calcium carbonate, and wherein the ratio of the thickness of the starch to the thickness of the calcium carbonate in the starch-coated inorganic filler is about 1:1 to about 1:3. 2. The wrapping paper of claim 1, wherein the pattern of bands is adapted to reduce a porosity of the paper so as to decrease a supply of oxygen to a smokable material inside the rod and thereby reduce ignition propensity of the smokable rod. 3. The wrapping paper of claim 1, wherein the starch comprises a starch ester. 4. The wrapping paper of claim 1, wherein the starch comprises a particle size of about 200 nm to about 1000 nm. 5. The wrapping paper of claim 1, wherein the starch has a size of about 200 nm to about 400 nm and the starch comprises a filler loading of about 20% based on the total weight of the filler and the calcium carbonate comprises a filler loading of about 6% based on the total weight of the filler. 6. The wrapping paper of claim 1, wherein the calcium carbonate filler comprises a size in the range of about 0.5 microns to about 2.4 microns. 7. The wrapping paper of claim 1, wherein the calcium carbonate comprises a scalenohedron-shaped or a rhombic-shaped precipitated calcium carbonate. 8. The wrapping paper of claim 1, wherein the material further comprises a hot melt formulation comprising a thermoplastic polymer. 9. The wrapping paper of claim 8, wherein the hot melt formulation comprises a melting temperature in a range of about 60 degrees C. to about 130 degrees C. 10. The wrapping paper of claim 8, wherein the thermoplastic polymer comprises a polycaprolactone. 11. The wrapping paper of claim 10, wherein heating the paper above 220 degrees C. decreases the paper diffusivity. 12. The wrapping paper of claim 8, wherein the hot melt material is applied to the paper without a solvent and is curable at ambient temperature. 13. The wrapping paper of claim 8, wherein the hot melt formulation comprises an electrostatic powder adapted for application to the paper utilizing ultrasonic waves. 14. The wrapping paper of claim 8, wherein the starch comprises a starch derivative grafted with an aliphatic polyester formed from copolymerization of the starch with a cyclic ester. 15. The wrapping paper of claim 1, wherein the paper without the material comprises a dry basis weight in the range of about 20 g/m2 to about 30 g/m2. 16. The wrapping paper of claim 1, wherein the bands are adapted to be applied to the paper on-line on a cigarette making apparatus without changing a speed of the paper. 17. The wrapping paper of claim 1, wherein commercial production of the smokable rods comprises a paper speed of about 600 meters per minute. 18. The wrapping paper of claim 3, wherein the starch ester comprises a starch acetate. 19. A wrapping paper for a smokable rod comprising: a pattern of intermittent bands applied to a wire side surface of the wrapping paper,the bands comprising a water-insoluble material comprising a filler, and the filler comprises at least one of a starch and a starch-coated inorganic filler in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of pressure to apply the bands,(b) decrease paper diffusivity, and(c) maintain paper opacity at a level acceptable for commercial production of the smokable rodswherein the starch comprises a starch ester and has a size of about 200 nm to about 400 nm,wherein the filler further comprises a calcium carbonate filler, andwherein the starch comprises a filler loading of about 20% based on the total weight of the filler and the calcium carbonate comprises a filler loading of about 6% based on the total weight of the filler. 20. The wrapping paper of claim 19, wherein the pattern of bands is adapted to reduce a porosity of the paper so as to decrease a supply of oxygen to a smokable material inside the rod and thereby reduce ignition propensity of the smokable rod. 21. The wrapping paper of claim 19, wherein the starch ester and/or a starch-coated filler comprise a total loading weight in a range of about 25 percent to about 30 percent of the total weight of the paper and starch ester and/or filler. 22. The wrapping paper of claim 19, wherein the calcium carbonate is starch-coated, andwherein the ratio of the thickness of the starch to the thickness of the calcium carbonate in the starch-coated calcium carbonate is in the range of about 1:1 to about 1:3. 23. The wrapping paper of claim 19, wherein the material is applied to the paper without a solvent and is curable at ambient temperature. 24. The wrapping paper of claim 19, wherein the material further comprises a hot melt formulation comprising a thermoplastic polymer having a melting temperature in a range of about 60 degrees to about 130 degrees C. 25. The wrapping paper of claim 19, wherein the paper further comprises a fire standard compliant paper having a self-extinction rate of at least 75% in a standard (ASTM) test of ignition strength. 26. The wrapping paper of claim 19, wherein the bands are adapted to be applied to the paper on-line on a cigarette making apparatus without changing a speed of the paper. 27. A cigarette, comprising: a column of smokable material;a wrapping paper having a wire side surface and a felt side surface circumscribing the smokable material such that the felt side surface of the paper faces the smokable material; anda pattern of intermittent bands applied to the wire side surface of the paper, the bands comprising a water-insoluble material comprising at least one of a starch ester and a starch-coated inorganic filler in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of pressure to apply the bands,(b) decrease paper diffusivity, and(c) maintain paper opacity at a level acceptable for commercial production of the cigarette,wherein the pattern of bands is adapted to reduce a porosity of the paper so as to decrease a supply of oxygen to the smokable material inside the paper and thereby reduce ignition propensity of the cigarettewherein the starch-coated inorganic filler comprises calcium carbonate and wherein the ratio of the thickness of the starch ester to the thickness of the calcium carbonate in the starch-coated inorganic filler is about 1:1 to about 1:3. 28. The cigarette of claim 27, wherein the starch ester and/or starch-coated filler comprise a total loading weight in a range of about 25 percent to about 30 percent of the total weight of the paper and starch ester and/or filler. 29. The wrapping paper of claim 27, wherein the material further comprises a hot melt formulation comprising a thermoplastic polymer having a melting temperature in a range of about 60 degrees C. to about 130 degrees C. 30. A cigarette, comprising: a column of smokable material;a wrapping paper having a wire side surface and a felt side surface circumscribing the smokable material such that the felt side surface of the paper faces the smokable material; anda pattern of intermittent bands applied to the wire side surface of the paper, the bands comprising a water-insoluble material comprising at least one of a starch ester having a size of about 200 nm to about 400 nm and a starch-coated inorganic filler comprising calcium carbonate in an amount such that the material is sufficiently deformable so as to (a) reduce an amount of pressure to apply the bands,(b) decrease paper diffusivity, and(c) maintain paper opacity at a level acceptable for commercial production of the cigarette,wherein the pattern of bands is adapted to reduce a porosity of the paper so as to decrease a supply of oxygen to the smokable material inside the paper and thereby reduce ignition propensity of the cigarettewherein the material comprises a filler comprising the starch ester and the calcium carbonate, and wherein the starch ester comprises a filler loading of about 20% percent based on the total weight of the filler and the calcium carbonate comprises a filler loading of about 6% based on the total weight of the filler. 31. The cigarette of claim 30, wherein the ratio of the thickness of the starch ester to the thickness of the calcium carbonate in the starch-coated inorganic filler is about 1:1 to about 1:3. 32. The cigarette of claim 30, wherein the starch ester and/or starch-coated filler comprise a total loading weight in a range of about 25 percent to about 30 percent of the total weight of the paper and starch ester and/or filler. 33. The wrapping paper of claim 30, wherein the material further comprises a hot melt formulation comprising a thermoplastic polymer having a melting temperature in a range of about 60 degrees C. to about 130 degrees C.
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