NZ617760B2 - Rods for use in smoking articles - Google Patents
Rods for use in smoking articles Download PDFInfo
- Publication number
- NZ617760B2 NZ617760B2 NZ617760A NZ61776012A NZ617760B2 NZ 617760 B2 NZ617760 B2 NZ 617760B2 NZ 617760 A NZ617760 A NZ 617760A NZ 61776012 A NZ61776012 A NZ 61776012A NZ 617760 B2 NZ617760 B2 NZ 617760B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- tobacco material
- sheet
- homogenised tobacco
- rod
- rods
- Prior art date
Links
- 230000000391 smoking Effects 0.000 title claims abstract description 59
- 241000208125 Nicotiana Species 0.000 claims abstract description 218
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 218
- 239000000463 material Substances 0.000 claims abstract description 204
- 239000000654 additive Substances 0.000 claims abstract description 30
- 239000000443 aerosol Substances 0.000 claims abstract description 13
- 239000000758 substrate Substances 0.000 claims description 36
- 238000002788 crimping Methods 0.000 description 17
- 239000000796 flavoring agent Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 239000000203 mixture Substances 0.000 description 11
- 239000011230 binding agent Substances 0.000 description 8
- 235000019634 flavors Nutrition 0.000 description 8
- 235000019504 cigarettes Nutrition 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000005266 casting Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- -1 for example Substances 0.000 description 4
- 229920002301 Cellulose acetate Polymers 0.000 description 3
- 230000000996 additive Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 235000011187 glycerol Nutrition 0.000 description 3
- 238000004537 pulping Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 2
- 229920002907 Guar gum Polymers 0.000 description 2
- 229960004873 LEVOMENTHOL Drugs 0.000 description 2
- 229940041616 Menthol Drugs 0.000 description 2
- 229920002522 Wood fibre Polymers 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 235000010417 guar gum Nutrition 0.000 description 2
- 239000000665 guar gum Substances 0.000 description 2
- 229960002154 guar gum Drugs 0.000 description 2
- 239000003906 humectant Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QOWAMIUFBNBINS-UHFFFAOYSA-N 2-[6-[4,5-diethoxy-2-(ethoxymethyl)-6-methoxyoxan-3-yl]oxy-4,5-dimethoxy-2-(methoxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)-5-methoxyoxane-3,4-diol Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(OC)C(OC)C(OC2C(C(O)C(OC)C(CO)O2)O)C(COC)O1 QOWAMIUFBNBINS-UHFFFAOYSA-N 0.000 description 1
- CWSZBVAUYPTXTG-UHFFFAOYSA-N 5-[6-[[3,4-dihydroxy-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxymethyl]-3,4-dihydroxy-5-[4-hydroxy-3-(2-hydroxyethoxy)-6-(hydroxymethyl)-5-methoxyoxan-2-yl]oxyoxan-2-yl]oxy-6-(hydroxymethyl)-2-methyloxane-3,4-diol Chemical compound O1C(CO)C(OC)C(O)C(O)C1OCC1C(OC2C(C(O)C(OC)C(CO)O2)OCCO)C(O)C(O)C(OC2C(OC(C)C(O)C2O)CO)O1 CWSZBVAUYPTXTG-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229920001817 Agar Polymers 0.000 description 1
- XJKJWTWGDGIQRH-BFIDDRIFSA-N Alginic acid Chemical compound O1[C@@H](C(O)=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C(O)=O)O[C@@H](C)[C@@H](O)[C@H]1O XJKJWTWGDGIQRH-BFIDDRIFSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 108091005937 Cerulean Proteins 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 210000003128 Head Anatomy 0.000 description 1
- 210000003284 Horns Anatomy 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229920000161 Locust bean gum Polymers 0.000 description 1
- XAPRFLSJBSXESP-UHFFFAOYSA-N Oxycinchophen Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=C(O)C=1C1=CC=CC=C1 XAPRFLSJBSXESP-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 229940005550 Sodium alginate Drugs 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N Triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 235000010489 acacia gum Nutrition 0.000 description 1
- 239000001785 acacia senegal l. willd gum Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000001154 acute Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000008272 agar Substances 0.000 description 1
- 235000010419 agar Nutrition 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 239000000783 alginic acid Substances 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 229960001126 alginic acid Drugs 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 235000019437 butane-1,3-diol Nutrition 0.000 description 1
- PUPZLCDOIYMWBV-UHFFFAOYSA-N butylene glycol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- IZMOTZDBVPMOFE-UHFFFAOYSA-N dimethyl dodecanedioate Chemical compound COC(=O)CCCCCCCCCCC(=O)OC IZMOTZDBVPMOFE-UHFFFAOYSA-N 0.000 description 1
- ZDJFDFNNEAPGOP-UHFFFAOYSA-N dimethyl tetradecanedioate Chemical compound COC(=O)CCCCCCCCCCCCC(=O)OC ZDJFDFNNEAPGOP-UHFFFAOYSA-N 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 235000010944 ethyl methyl cellulose Nutrition 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 150000004676 glycans Polymers 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010420 locust bean gum Nutrition 0.000 description 1
- 239000000711 locust bean gum Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920003087 methylethyl cellulose Polymers 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 150000004804 polysaccharides Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- MSXHSNHNTORCAW-UHFFFAOYSA-M sodium 3,4,5,6-tetrahydroxyoxane-2-carboxylate Chemical compound [Na+].OC1OC(C([O-])=O)C(O)C(O)C1O MSXHSNHNTORCAW-UHFFFAOYSA-M 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-M triacetate(1-) Chemical compound CC(=O)CC(=O)CC([O-])=O ILJSQTXMGCGYMG-UHFFFAOYSA-M 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- 235000010493 xanthan gum Nutrition 0.000 description 1
- 239000000230 xanthan gum Substances 0.000 description 1
- 229940082509 xanthan gum Drugs 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
- A24B15/165—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/18—Forming the rod
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/08—Cigars; Cigarettes with lighting means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/22—Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F25/00—Devices used by the smoker for controlling the moisture content of, or for scenting, cigars, cigarettes or tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
Abstract
rod for use in a smoking article comprises a gathered sheet of homogenised tobacco material (2) circumscribed by a wrapper (12) is disclsoed. The sheet of homogenised tobacco material may comprises one or more aerosol-formers and have an aerosol former content of greater than 5% on a dry weight basis or of between 5% and 30% by weight on a dry weight basis. The rod may comprise a continuous element to which one or more additives have been applied, which is incorporated into the gathered continuous sheet of homogenised tobacco material. A method of forming the rod comprises the steps of: providing a continuous sheet of homogenised tobacco material (2); gathering the continuous sheet of homogenised tobacco material (8) transversely relative to the longitudinal axis thereof; circumscribing the gathered continuous sheet of homogenised tobacco material (8) with a wrapper (12) to form a continuous rod; and severing the continuous rod into a plurality of discrete rods. The sheet of homogenised tobacco material is preferably crimped or otherwise textured. sis or of between 5% and 30% by weight on a dry weight basis. The rod may comprise a continuous element to which one or more additives have been applied, which is incorporated into the gathered continuous sheet of homogenised tobacco material. A method of forming the rod comprises the steps of: providing a continuous sheet of homogenised tobacco material (2); gathering the continuous sheet of homogenised tobacco material (8) transversely relative to the longitudinal axis thereof; circumscribing the gathered continuous sheet of homogenised tobacco material (8) with a wrapper (12) to form a continuous rod; and severing the continuous rod into a plurality of discrete rods. The sheet of homogenised tobacco material is preferably crimped or otherwise textured.
Description
RODS FOR USE IN SMOKING ARTICLES
The present invention relates to rods comprising a gathered sheet of homogenised tobacco material
for use in smoking articles, smoking articles comprising such rods and methods for forming such rods.
Processes and apparatus for producing shreds, strands or strips of tobacco material are known in
the art. Typically, the width of such shreds, stands and strips of tobacco material is about 3 mm or less.
For example, US-A-4,000,748 discloses a process and apparatus for shredding a sheet of
reconstituted tobacco into strips and crimping the resultant strips in a substantially simultaneous operation.
The sheet of tobacco material is moved between a pair of rotating and intermeshing stacks of disks which
shred the sheet into a plurality of strips about 0.65 to 1.55 mm in width. The forward motion of the
resultant strips is retarded by engagement with facing surfaces of neighbouring disks causing a buckling of
the strips into a crimped configuration. The crimped strips are reported to provide an increase in fill value.
US-A-4,598,721 discloses a method and apparatus for producing crimped fibre pieces of
reconstituted tobacco. Tobacco dust and/or tobacco waste is processed with binders and possibly additives
to a plastifiable mixture that is extruded through a special die head to obtain individual filiform crimped
intermediate products, which are then separated into individual crimped fibre pieces. The crimped fibre
pieces should have a thickness of 0.1 to 0.3 mm, a width of 0.4 to 3 mm and a stretched length of 5 to 40
US-A-4,889,143 discloses cigarette rods having a plurality of substantially longitudinally extending
strands provided from shredded sheet-like reconstituted tobacco material which are contained in a
circumscribing wrapping material. Strips of sheet-like reconstituted tobacco material are shredded into a
plurality of strands which are gathered into a rod-like shape and circumscribed by a paper wrap in order to
form a continuous rod. The continuous rod is then severed at regular intervals to provide a plurality of rods
of the desired length. To control the pressure drop of the cigarette rod, strands having a crimped character
may be produced and positioned in a longitudinally extending manner such that air can flow longitudinally
through the rod in the spaces between the strands. Strands travelling through the rod-forming means at a
slightly lesser speed than that speed at which the strands leave the shredding means can tend to provide
crimped strands, that is somewhat bent, wrinkled, wavy or sinusoidal shaped strands, capable of providing
increased quantity of material per unit length of rod section.
The formation of rods for smoking articles comprising crimped or uncrimped shreds of tobacco
material suffers from a number of disadvantages including those discussed below.
Firstly, shredding tobacco material undesirably generates tobacco fines and other waste.
Secondly, rods comprising shreds of tobacco material exhibit ‘loose ends’, that is the loss of shreds
of tobacco material from the ends of the rod. This is exacerbated by breakage of the shreds of tobacco
material during rod formation. Loose ends are not only aesthetically undesirable, but can also
disadvantageously lead to the need for more frequent cleaning of manufacturing equipment and smoking
devices.
Thirdly, rods comprising shreds of tobacco material exhibit high weight standard deviations, that is
rods of the same dimensions tend to be of inconsistent weight. This is due in part to the tendency of the
rods to exhibit loose ends as mentioned above. The high weight standard deviation of rods comprising
shreds of tobacco material leads to an undesirably high rejection rate of rods whose weight falls outside of a
selected acceptance range.
Finally, rods comprising shreds of tobacco material exhibit non-uniform densities, that is, the density
along the length of the rod tends to be inconsistent. This is due to variations in the quantity of tobacco
material at different locations along the rod, which results in ‘voids’, that is reduced quantities of tobacco
material, and ‘pads’, that is increased levels of tobacco material. The non-uniform density of rods
comprising shreds of tobacco material can undesirably affect the resistance to draw (RTD) of the rods. In
addition, the non-uniform density of rods comprising shreds of tobacco material can lead to loose ends
when a void is located at the end of the rod.
Loose ends, high weight standard deviations and non-uniform densities as exhibited by rods
comprising shreds of tobacco material are particularly problematic and undesirable in rods of short length.
Rods of short length are sometimes referred to as plugs.
It would be desirable to provide rods comprising tobacco material for use in smoking articles that
exhibit fewer loose ends than rods comprising shreds of tobacco material.
Alternatively or in addition, it would be desirable to provide rods comprising tobacco material for
use in smoking articles that exhibit lower weight standard deviations than rods comprising shreds of
tobacco material.
Alternatively or in addition, it would be desirable to provide rods comprising tobacco material for
use in smoking articles that exhibit more uniform densities than rods comprising shreds of tobacco material.
According to the disclosure, there is provided a rod comprising a gathered sheet of homogenised
tobacco material comprising one or more aerosol-formers circumscribed by a wrapper, wherein the sheet of
homogenised tobacco material has an aerosol former content of greater than 5% on a dry weight basis.
Alternatively or in addition, it would be desirable to at least provide the public with a useful choice.
According to a first aspect of the invention, there is provided a heated smoking article comprising an
aerosol-generating substrate, wherein the aerosol-generating substrate comprises a rod comprising a
gathered sheet of homogenised tobacco material circumscribed by a wrapper and the sheet of
homogenised tobacco material is crimped.
The term ‘comprising’ as used in this specification and claims means ‘consisting at least in part of’.
When interpreting statements in this specification and claims which include the term ‘comprising’, other
features besides the features prefaced by this term in each statement can also be present. Related terms
such as ‘comprise’ and ‘comprised’ are to be interpreted in a similar manner.
According to the disclosure, there is further provided a rod comprising a gathered sheet of
homogenised tobacco material comprising one or more aerosol-formers circumscribed by a wrapper,
wherein the sheet of homogenised tobacco material has an aerosol former content of between 5% and 30%
by weight on a dry weight basis.
According to the disclosure, there is further provided a rod comprising a gathered sheet of
homogenised tobacco material circumscribed by a wrapper and a continuous element to which one or more
additives have been applied, wherein the continuous element is incorporated into the gathered continuous
sheet of homogenised tobacco material.
According to the disclosure, there is further provided a heated smoking article comprising an
aerosol-generating substrate, wherein the aerosol-generating substrate comprises a rod comprising a
gathered sheet of homogenised tobacco material circumscribed by a wrapper.
As used herein, the term ‘rod’ is used to denote a generally cylindrical element of substantially
circular, oval or elliptical cross-section.
As used herein, the term ‘sheet’ denotes a laminar element having a width and length substantially
greater than the thickness thereof.
As used herein, the term ‘length’ denotes the dimension in the direction of the cylindrical axis of
rods according to the disclosure.
As used herein, the term ‘width’ denotes a dimension in a direction substantially perpendicular to
the cylindrical axis of rods according to the disclosure.
As used herein, the term ‘homogenised tobacco material’ denotes a material formed by
agglomerating particulate tobacco.
As used herein, the term ‘gathered’ denotes that the sheet of homogenised tobacco material is
convoluted, folded, or otherwise compressed or constricted substantially transversely to the cylindrical axis
of the rod.
As used herein, the expression ‘rods according to the disclosure’ also refers to rods in heated
smoking articles according to the disclosure.
It will be appreciated that in the following description of the invention features described in relation
to one embodiment of the invention may also be applicable to other embodiments of the invention.
The gathered sheet of homogenised tobacco material preferably extends along substantially the
entire length of the rod and across substantially the entire transverse cross-sectional area of the rod.
The inclusion of a gathered sheet of homogenised tobacco material in rods according to the
disclosure advantageously significantly reduces the risk of loose ends compared to rods comprising shreds
of tobacco material.
Rods comprising a sheet of homogenised tobacco material according to the disclosure
advantageously exhibit significantly lower weight standard deviations than rods comprising shreds of
tobacco material. The weight of a rod according to the disclosure of a particular length is determined by the
density, width and thickness of the sheet of homogenised tobacco material that is gathered to form the rod.
The weight of rods according to the disclosure of a particular length can thus be regulated by controlling
the density and dimensions of the sheet of homogenised tobacco material. This reduces inconsistencies in
weight between rods according to the disclosure of the same dimensions, and so results in lower rejection
rate of rods whose weight falls outside of a selected acceptance range.
Rods comprising a sheet of homogenised tobacco material according to the disclosure
advantageously exhibit more uniform densities than rods comprising shreds of tobacco material.
In preferred embodiments, rods according to the disclosure comprise a gathered textured sheet of
homogenised tobacco material circumscribed by a wrapper.
Use of a textured sheet of homogenised tobacco material may advantageously facilitate gathering
of the sheet of homogenised tobacco material to form a rod according to the disclosure.
As used herein, the term ‘textured sheet’ denotes a sheet that has been crimped, embossed,
debossed, perforated or otherwise deformed. Textured sheets of homogenised tobacco material for use in
the disclosure may comprise a plurality of spaced-apart indentations, protrusions, perforations or a
combination thereof.
In particularly preferred embodiments, rods according to the disclosure comprise a gathered
crimped sheet of homogenised tobacco material circumscribed by a wrapper.
As used herein, the term ‘crimped sheet’ is intended to be synonymous with the term ‘creped sheet’
and denotes a sheet having a plurality of substantially parallel ridges or corrugations. Preferably, the
crimped sheet of homogenised tobacco material has a plurality of ridges or corrugations substantially
parallel to the cylindrical axis of the rod according to the disclosure. This advantageously facilitates
gathering of the crimped sheet of homogenised tobacco material to form the rod. However, it will be
appreciated that crimped sheets of homogenised tobacco material for use in the disclosure may
alternatively or in addition have a plurality of substantially parallel ridges or corrugations disposed at an
acute or obtuse angle to the cylindrical axis of the rod.
1: This advantage and other stated advantages are advantages of at least preferred embodiments
of the invention. It is not necessary for every embodiment of the invention to meet each stated
advantage.
In certain embodiments, sheets of homogenised tobacco material for use in the disclosure may be
substantially evenly textured over substantially their entire surface. For example, crimped sheets of
homogenised tobacco material for use in the disclosure may comprise a plurality of substantially parallel
ridges or corrugations that are substantially evenly spaced-apart across the width of the sheet.
According to the disclosure there is further provided use of a rod according to the disclosure in a
smoking article.
According to the disclosure there is also provided a smoking article comprising a rod according to
the disclosure.
Rods according to the disclosure may be used as rods of combustible smokable material in lit-end
smoking articles.
In one embodiment, rods according to the disclosure may be used as rods of combustible smokable
material in lit-end cigarettes comprising a rod of combustible smokable material and a filter downstream of
the rod of combustible smokable material.
As used herein, the terms ‘upstream’ and ‘downstream’ are used to describe the relative positions
of components, or portions of components, of smoking articles comprising rods according to the disclosure
in relation to the direction of air drawn through the smoking articles during use thereof.
A number of smoking articles in which tobacco is heated rather than combusted have been
proposed in the art. Typically in heated smoking articles, an aerosol is generated by the transfer of heat
from a heat source, for example a chemical, electrical or combustible heat source, to a physically separate
aerosol-generating substrate, which may be located within, around or downstream of the heat source.
According to the disclosure there is also provided an aerosol-generating substrate for a heated
smoking article, wherein the aerosol-generating substrate comprises a rod according to the disclosure.
As used herein, the term ’aerosol-generating substrate’ denotes a substrate capable of releasing
volatile compounds upon heating to generate an aerosol.
Rods according to the disclosure are particularly suited for use as aerosol-generating substrates in
heated smoking articles. Aerosol-generating substrates in heated smoking articles are typically significantly
shorter in length than rods of combustible smokable material in conventional lit end smoking articles. As
noted above, loose ends, high weight standard deviations and non-uniform densities as exhibited by rods
comprising shreds of tobacco material are particularly undesirable in rods of short length. Use of short rods
according to the disclosure as aerosol-generating substrates in heated smoking articles advantageously
minimises or avoids one or more of the disadvantages associated with the use of short rods comprising
shreds of tobacco material previously discussed above.
According to the disclosure there is also provided a heated smoking article comprising an aerosol-
generating substrate, wherein the aerosol-generating substrate comprises a rod according to the disclosure.
In one embodiment, rods according to the disclosure may be used as aerosol-generating substrates
in heated smoking articles comprising a combustible heat source and an aerosol-generating substrate
downstream of the combustible heat source.
For example, rods according to the disclosure may be used as aerosol-generating substrates in
heated smoking articles of the type disclosed in WO-A-2009/022232, which comprise a combustible carbon-
based heat source, an aerosol-generating substrate downstream of the combustible heat source, and a
heat-conducting element around and in contact with a rear portion of the combustible carbon-based heat
source and an adjacent front portion of the aerosol-generating substrate. However, it will be appreciated
that rods according to the disclosure may also be used as aerosol-generating substrates in heated smoking
articles comprising combustible heat sources having other constructions.
In another embodiment, rods according to the disclosure may be used as aerosol-generating
substrates in heated smoking articles for use in electrically heated aerosol-generating systems in which the
aerosol-generating substrate of the heated smoking article is heated by an electrical heat source.
For example, rods according to the disclosure may be used as aerosol-generating substrates in
heated smoking articles of the type disclosed in EP-A-0 822 670.
Insertion and removal from an electrically heated aerosol-generating system of heated smoking
articles including an aerosol-generating substrate comprising a rod comprising shreds of tobacco material
tends to dislodge shreds of tobacco material from the rod. This can disadvantageously result in the need for
more frequent cleaning of the electrical heat source and other parts of the electrically heated smoking
system in order to remove the dislodged shreds.
In contrast, insertion and removal from an electrically heated aerosol-generating system of heated
smoking articles including an aerosol-generating substrate comprising a rod comprising a gathered sheet of
homogenised tobacco material advantageously does not result in dislodgement of tobacco material.
According to the disclosure there is further provided a filter for a smoking article, wherein the filter
comprises a rod according to the disclosure.
Rods according to the disclosure may be used in filters for both lit-end smoking articles and heated
smoking articles.
Rods according to the disclosure may used in filters comprising a single filter segment. Rods
according to the disclosure may also be used in multi-component filters comprising two or more filter
segments.
Filters comprising tobacco-containing filter segments are known in the art. For example,
EP-A-1 889 550 discloses a multi-component filter for a smoking article comprising: a mouth end segment; a
first flavour release segment comprising tobacco or other plant leaf upstream of the mouth end segment;
and a second flavour release segment comprising filtration material and a flavourant upstream of the first
flavour release segment. The resistance to draw of the second flavour release segment is greater than the
resistance to draw of the first flavour release segment and the resistance to draw of the second flavour
release segment is greater than the resistance to draw of mouth end segment.
In certain embodiments, rods according to the disclosure may be used as tobacco-containing filter
segments in single or multi-component filters. For example, rods according to the disclosure may be used as
a first flavor release segment in multi-component filters of the type disclosed in EP-A-1 889 550.
Filters comprising rods according to the disclosure may further comprise one or more filtration
materials for the removal of particulate components, gaseous components or a combination thereof.
Suitable filtration materials are known in the art and include, but are not limited to: fibrous filtration
materials such as, for example, cellulose acetate tow and paper; adsorbents such as, for example, activated
alumina, zeolites, molecular sieves and silica gel; and combinations thereof.
Alternatively or in addition, filters comprising rods according to the disclosure may further comprise
one or more smoke or aerosol-modifying agents. Suitable smoke and aerosol-modifying agents are known
in the art and include, but are not limited to: flavourants such as, for example, menthol.
Preferably, rods according to the disclosure are of substantially uniform cross-section.
Rods according to the disclosure may be produced having different dimensions depending upon
their intended use.
For example, rods according to the disclosure may have a diameter of between about 5 mm and
about 10 mm depending upon their intended use.
For example, rods according to the disclosure may have a length of between about 5 mm and about
150 mm depending upon their intended use.
In certain embodiments, rods according to the disclosure for use as rods of combustible smokable
material in conventional lit-end smoking articles may have a length of between about 30 mm and about 140
In other embodiments, rods according to the disclosure for use as aerosol-generating substrates in
heated smoking articles may have a length of between about 5 mm and about 20 mm.
In further embodiments, rods according to the disclosure for use in filters for conventional lit-end
smoking articles and heated smoking articles may have a length of between about 5 mm and about 30 mm.
Rods according to the disclosure of a desired unit length may be produced by forming a rod
according to the disclosure of multiple unit length and then cutting or otherwise dividing the rod of multiple
unit length into multiple rods of the desired unit length.
For example, rods according to the disclosure having a length of about 15 mm for use as aerosol-
generating substrates in heated smoking articles may be produced by forming a rod according to the
disclosure having a length of about 150 mm and then severing the elongate rod into ten rods according to
the disclosure having a length of about 15 mm.
Sheets of homogenised tobacco material for use in the disclosure may be formed by agglomerating
particulate tobacco obtained by grinding or otherwise comminuting one or both of tobacco leaf lamina and
tobacco leaf stems. Alternatively, or in addition, sheets of homogenised tobacco material for use in the
disclosure tobacco may comprise one or more of tobacco dust, tobacco fines and other particulate tobacco
by-products formed during, for example, the treating, handling and shipping of tobacco.
Where rods according to the disclosure are intended for use as aerosol-generating substrates in
heated smoking articles, sheets of homogenised tobacco material for use in the disclosure preferably
comprise particulate tobacco obtained by grinding or otherwise comminuting tobacco leaf lamina.
In certain embodiments, sheets of homogenised tobacco material for use in the disclosure may have
a tobacco content of at least about 40% by weight on a dry weight basis or of at least about 50% by weight
on a dry weight basis. In other embodiments, sheets of homogenised tobacco material for use in the
disclosure may have a tobacco content of about 70% or more by weight on a dry weight basis. Where rods
according to the disclosure are intended for use as aerosol-generating substrates in heated smoking articles,
the use of sheets of homogenised tobacco material having high tobacco contents advantageously generates
aerosols with enhanced tobacco flavour.
Sheets of homogenised tobacco material for use in the disclosure may comprise one or more
intrinsic binders, that is tobacco endogenous binders, one or more extrinsic binders, that is tobacco
exogenous binders, or a combination thereof to help agglomerate the particulate tobacco. Alternatively, or
in addition, sheets of homogenised tobacco material for use in the disclosure may comprise other additives
including, but not limited to, tobacco and non-tobacco fibres, aerosol-formers, humectants, plasticisers,
flavourants, fillers, aqueous and non-aqueous solvents and combinations thereof.
Suitable extrinsic binders for inclusion in sheets of homogenised tobacco material for use in the
disclosure are known in the art and include, but are not limited to: gums such as, for example, guar gum,
xanthan gum, arabic gum and locust bean gum; cellulosic binders such as, for example, hydroxypropyl
cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, methyl cellulose and ethyl cellulose;
polysaccharides such as, for example, starches, organic acids, such as alginic acid, conjugate base salts of
organic acids, such as sodium-alginate, agar and pectins; and combinations thereof.
Suitable non-tobacco fibres for inclusion in sheets of homogenised tobacco material for use in the
disclosure are known in the art and include, but are not limited to: cellulose fibers; soft-wood fibres; hard-
wood fibres; jute fibres and combinations thereof. Prior to inclusion in sheets of homogenised tobacco
material for use in embodiments of the disclosure, non-tobacco fibres may be treated by suitable processes
known in the art including, but not limited to: mechanical pulping; refining; chemical pulping; bleaching;
sulfate pulping; and combinations thereof.
Sheets of homogenised tobacco material for use in the disclosure should have sufficiently high
tensile strength to survive being gathered to form rods according to the disclosure. In certain embodiments
non-tobacco fibres may be included in sheets of homogenised tobacco material for use in the disclosure in
order to achieve an appropriate tensile strength.
For example, homogenised sheets of tobacco material for use in the disclosure may comprise
between about 1% and about 5% non-tobacco fibres by weight on a dry weight basis.
Suitable aerosol-formers and humectants for inclusion in sheets of homogenised tobacco material
for use in the disclosure are known in the art and include, but are not limited to: polyhydric alcohols, such as
triethylene glycol, 1,3-butanediol and glycerine; esters of polyhydric alcohols, such as glycerol mono-, di- or
triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecanedioate and
dimethyl tetradecanedioate.
In certain preferred embodiments, sheets of homogenised tobacco material for use in the disclosure
comprising one or more aerosol-formers have an aerosol former content of greater than 5% on a dry weight
basis.
In other preferred embodiments, sheets of homogenised tobacco material for use in the disclosure
comprising one or more aerosol-formers have an aerosol former content of between about 5% and about
% by weight on a dry weight basis.
For example, where rods according to the disclosure are intended for use as aerosol-generating
substrates in heated smoking articles, sheets of homogenised tobacco material for use in the disclosure may
have an aerosol former content of between about 5% and about 30% by weight on a dry weight basis.
It will be appreciated that the composition of sheets of homogenised tobacco material for use in the
disclosure may be designed to comply with regulatory requirements.
A number of reconstitution processes for producing sheets of homogenised tobacco materials are
known in the art. These include, but are not limited to: paper-making processes of the type described in, for
example, US-A-3,860,012; casting or ‘cast leaf’ processes of the type described in, for example, US-A-
,724,998; dough reconstitution processes of the type described in, for example, US-A-3,894,544; and
extrusion processes of the type described in, for example, in GB-A-983,928. Typically, the densities of
sheets of homogenised tobacco material produced by extrusion processes and dough reconstitution
processes are greater than the densities of sheets of homogenised tobacco materials produced by casting
processes.
Sheets of homogenised tobacco material are preferably formed by a casting process of the type
generally comprising casting a slurry comprising particulate tobacco and one or more binders onto a
conveyor belt or other support surface, drying the cast slurry to form a sheet of homogenised tobacco
material and removing the sheet of homogenised tobacco material from the support surface.
For example, in certain embodiments sheets of homogenised tobacco material for use in the
disclosure may be formed from a slurry comprising particulate tobacco, guar gum, cellulose fibres and
glycerine by a casting process.
Sheets of homogenised tobacco material may be textured using suitable known machinery for
texturing filter tow, paper and other materials.
For example, sheets of homogenised tobacco material for use in the disclosure may be crimped
using a crimping unit of the type described in CH-A-691156, which comprises a pair of rotatable crimping
rollers. However, it will be appreciated that sheets of homogenised tobacco material may be textured using
other suitable machinery and processes that deform or perforate the sheets of homogenised tobacco
material.
Rods according to the disclosure may be produced from sheets of homogenised tobacco material
having different dimensions depending upon their intended use.
Sheet of homogeneous tobacco material should be of sufficient width to be gathered to form a rod
according to the disclosure.
Preferably, sheets of homogeneous tobacco material for use in the disclosure have a width of at
least about 25 mm.
In certain embodiments sheets of homogeneous tobacco material may have a width of between
about 25 mm and about 300 mm.
The resistance to draw of a rod of a particular maximum transverse dimension is influenced by the
width of the sheet of homogeneous tobacco material gathered to form the rod. The width of the sheet of
homogenous tobacco material should be greater than the maximum transverse dimension of the rod.
Preferably, the width of the sheet of homogenised material is at least three times the maximum
transverse dimension of the rod.
In certain embodiments, the width of the sheet of homogenised material may be at least five times
the maximum transverse dimension of the rod. In other embodiments, the width of the sheet of
homogenised material may be at least ten times the maximum transverse dimension of the rod.
Preferably, sheets of homogeneous tobacco material have a thickness of at least about 50 µm.
In certain embodiments, sheets of homogeneous tobacco material may have a thickness of between
50 µm and about 300 µm.
In certain embodiments, sheets of homogenised tobacco material may have a grammage 100 g/m
and about 300 g/m .
Rods may comprise a gathered sheet of homogenised tobacco material circumscribed by a porous
wrapper or a non-porous wrapper.
In certain embodiments, rods may comprise a gathered sheet of homogenised tobacco material
circumscribed by a paper wrapper.
Suitable paper wrappers are known in the art and include, but are not limited to: cigarette papers;
and filter plug wraps.
In other embodiments, rods may comprise a gathered sheet of homogenised tobacco material
circumscribed by a non-paper wrapper.
Suitable non-paper wrappers are known in the art and include, but are not limited to: homogenised
tobacco materials.
Rods may be produced using conventional cigarette making and cigarette filter making machinery.
For example, rods comprising a gathered crimped sheet of homogeneous tobacco material may be
produced using machinery for forming filter rods comprising a gathered crimped sheet of paper of the type
described in CH-A-691156.
There is also provided a method of forming a rod according to the disclosure comprising the steps
of: providing a continuous sheet of homogenised tobacco material comprising one or more aerosol-formers,
wherein the sheet of homogenised tobacco material has an aerosol former content of greater than 5% on a
dry weight basis; gathering the continuous sheet of homogenised tobacco material transversely relative to
the longitudinal axis thereof; circumscribing the gathered continuous sheet of homogenised tobacco
material with a wrapper to form a continuous rod; and severing the continuous rod into a plurality of
discrete rods.
There is further provided a method of forming a rod according to the disclosure comprising the
steps of: providing a continuous sheet of homogenised tobacco material comprising one or more aerosol-
formers, wherein the sheet of homogenised tobacco material has an aerosol former content of between 5%
and 30% by weight on a dry weight basis; gathering the continuous sheet of homogenised tobacco material
transversely relative to the longitudinal axis thereof; circumscribing the gathered continuous sheet of
homogenised tobacco material with a wrapper to form a continuous rod; and severing the continuous rod
into a plurality of discrete rods.
There is further provided a method of forming a rod according to the disclosure comprising the
steps of: providing a continuous sheet of homogenised tobacco material; gathering the continuous sheet of
homogenised tobacco material transversely relative to the longitudinal axis thereof; incorporating a
continuous element to which one or more additives have been applied into the gathered continuous sheet
of homogenised tobacco material; circumscribing the gathered continuous sheet of homogenised tobacco
material with a wrapper to form a continuous rod; and severing the continuous rod into a plurality of
discrete rods.
The methods may further comprise texturing the continuous sheet of homogenised tobacco
material. For example, the methods may comprise crimping, embossing, perforating or otherwise texturing
the continuous sheet of homogenised tobacco material prior to gathering the continuous sheet of
homogenised tobacco material transversely relative to the longitudinal axis thereof.
Preferably, the methods further comprise crimping the continuous sheet of homogenised tobacco
material.
The methods may further comprise applying one or more additives to the continuous sheet of
homogenised tobacco material. For example, the method may comprise spraying, dusting, sprinkling or
otherwise applying one or more additives to the continuous sheet of homogenised tobacco material prior to
gathering the continuous sheet of homogenised tobacco material transversely relative to the longitudinal
axis thereof.
The one or more additives may be: one or more liquid additives; or one or more solid additives; or a
combination of one or more liquid additives and one or more solid additives.
Suitable liquid and solid additives for use in the embodiments of the disclosure are known in the art
and include, but are not limited to: flavourants, such as for example menthol; adsorbents, such as for
example activated carbon; and botanical additives.
The one or more additives may be applied to substantially the entire continuous sheet of
homogenised tobacco material. Alternatively, the one or more additives may be applied to selected regions
or portions of the continuous sheet of homogenised tobacco material.
Where the methods also further comprise texturing the continuous sheet of homogenised tobacco
material, the one or more additives may be applied to the continuous sheet of homogenised tobacco
material prior to or after texturing the continuous sheet of homogenised tobacco material.
Preferably, the methods comprise applying the one or more additives to the continuous sheet of
homogenised tobacco material after texturing the continuous sheet of homogenised tobacco material.
Alternatively or in addition to applying one or more additives to the continuous sheet of
homogenised tobacco material, the methods may comprise incorporating a continuous element to which
one or more additives have been applied into the gathered continuous sheet of homogenised tobacco
material. For example, the methods may comprise incorporating a continuous element impregnated with a
liquid flavourant into the gathered continuous sheet of homogenised tobacco material.
Suitable continuous elements are known in the art and include, but are not limited to: threads;
yarns; tapes; filaments and other elongate elements.
Continuous elements may be formed from any suitable known materials capable of carrying one or
more additives including, but not limited to: cotton; cellulose acetate; rayon; tobacco; and other textile or
non-textile materials.
Continuous elements may be incorporated into the gathered continuous sheet of homogenised
tobacco material using suitable known machinery for incorporating continuous elements into continuous
rods of cellulose acetate tow and other filter materials such as described in, for example, US Patents Nos.
4,281,671 and 7,074,170.
The invention will be further described, by way of example only, with reference to the
accompanying drawings in which:
Figure 1 shows a schematic cross-section of apparatus for forming a rod according to the invention;
Figure 2 shows the density of rods according to a first embodiment of the invention formed using
the apparatus shown in Figure 1; and
Figure 3 shows the density of rods comprising shreds of tobacco material.
The apparatus shown in Figure 1 generally comprises: supply means for providing a continuous
sheet of homogenised tobacco material; crimping means for crimping the continuous sheet of homogenised
tobacco material; rod forming means for gathering the continuous crimped sheet of homogenised tobacco
material and circumscribing the gathered continuous crimped sheet of homogenised tobacco material with
a wrapper to form a continuous rod; and cutting means for severing the continuous rod into a plurality of
discrete rods. The apparatus also comprises transport means for transporting the continuous sheet of
homogenised tobacco material downstream through the apparatus from the supply means to the rod
forming means via the crimping means.
As shown in Figure 1, the supply means comprises a continuous sheet of homogenised tobacco
material 2 mounted on a bobbin 4 and the crimping means comprises a pair of rotatable crimping rollers 6.
In use, the continuous sheet of homogenised tobacco material 2 is drawn from the bobbin 4 and
transported downstream to the pair of crimping rollers 6 by the transport mechanism via a series of guide
and tensioning rollers. As the continuous sheet of homogenised tobacco material 2 is fed between the pair
of crimping rollers 6, the crimping rollers engage and crimp the continuous sheet of homogenised tobacco
material 2 to form a continuous crimped sheet of homogenised tobacco material 8 having a plurality of
spaced-apart ridges or corrugations substantially parallel to the longitudinal axis of the sheet of
homogenised tobacco material through the apparatus.
The continuous crimped sheet of homogenised tobacco material 8 is transported downstream from
the pair of crimping rollers 6 to the rod forming means by the transport mechanism where it is fed through
a converging funnel or horn 10. The converging funnel 10 gathers the continuous crimped sheet of
homogenised tobacco material 8 transversely relative to the longitudinal axis of the sheet of homogenised
tobacco material. The continuous crimped sheet of homogenised tobacco material 8 assumes a
substantially cylindrical configuration as it passes through the converging funnel 10.
Upon exiting the converging funnel 10, the gathered continuous crimped sheet of homogenised
tobacco material is wrapped in a continuous sheet of wrapping material 12. The continuous sheet of
wrapping material is fed from a bobbin 14 and enveloped around the gathered continuous crimped sheet of
homogenised tobacco material by an endless belt conveyor or garniture. As shown in Figure 1, the rod
forming means comprises an adhesive application means 16 that applies adhesive to one of the longitudinal
edges of the continuous sheet of wrapping material, so that when the opposed longitudinal edges of the
continuous sheet of wrapping material are brought into contact they adhere to one other to form a
continuous rod.
The rod forming means further comprises a drying means 18 downstream of the adhesive
application means 16, which in use dries the adhesive applied to the seam of the continuous rod as the
continuous rod is transported downstream from the rod forming means to the cutting means.
The cutting means comprises a rotary cutter 20 that severs the continuous rod into a plurality of
discrete rods of unit length or multiple unit length.
The apparatus shown in Figure 1 further comprises an additive application means 24 located
between the crimping means and the rod forming means for applying solid or liquid additives such as, for
example, flavourants, to the continuous crimped sheet of homogenised tobacco material 8 before it is
gathered transversely relative to the longitudinal axis thereof by the converging funnel 10.
In one alternative embodiment (not shown), the additive application means is located between the
supply means and the crimping means for applying solid or liquid additives to the continuous sheet of
homogenised tobacco material before it is crimped.
In another alternative embodiment (not shown), the additive application means is located adjacent
to the converging funnel 10 of the rod forming means and is adapted to apply solid or liquid additives to the
gathered continuous crimped sheet of homogenised tobacco material before it is wrapped in the continuous
sheet of wrapping material 12.
In a further embodiment (not shown) the apparatus further comprises means located between the
crimping means and the rod forming means for incorporating a continuous element to which one or more
additives have been applied into the continuous crimped sheet of homogenised tobacco material 8 as it is
gathered by the converging funnel 10.
Example 1
Rods according to a first embodiment of the invention comprising a gathered crimped sheet of
homogenised tobacco material circumscribed by a paper wrapper and having a length of 120 mm and
diameters of between 6.9 mm and 7.2 mm were produced at rates of between 20 m/min and 25 m/min
using apparatus of the type shown in Figure 1. Continuous sheets of tobacco material produced by a casting
process having a width of between 110 mm and 134 mm, a thickness of 120 µm to 260 µm, a grammage of
between 167 g/m and 201 g/m and a moisture content of between 5% and 12% were used to form the
rods.
The density of five rods according to the first embodiment of the invention was measured at
positions between 10 mm and 110 mm along the length of the rods using a C cigarette testing unit available
from Cerulean, a trading name of Molins PLC of Milton Keynes, United Kingdom. The results of the density
measurements are shown in Figure 2.
For the purpose of comparison, the density of five rods of the same dimensions but comprising
shreds of homogenised tobacco material circumscribed by a paper wrapper was also measured at positions
between 10 mm and 110 mm along the length of the rods using standard techniques. The results of the
density measurements are shown in Figure 3.
As shown in Figure 2, for the five rods according to the first embodiment of the invention the
minimum density value is about 410 mg/cm , the maximum density value is about 450 mg/cm and the
average density value is about 430 mg/cm with a standard deviation of about 9 mg/cm and a coefficient of
variation (CV) of about 2%.
As shown in Figure 3, for the five rods comprising shreds of homogenised tobacco material the
minimum density value is about 360 mg/cm , the maximum density value is about 470 mg/cm and the
average density value is about 410 mg/cm with a standard deviation of about 29 mg/cm and a CV of about
As illustrated by the data presented in Figures 2 and 3, the rods according to the first embodiment
of the invention advantageously exhibit more uniform densities than the rods comprising shreds of
homogenised tobacco material.
Example 2
Rods according to a second embodiment of the invention having a length of 12 mm and diameters
of between 6.9 mm and 7.2 mm for use as aerosol-generating substrates in electrically heated smoking
articles were produced by severing the rods according to the first embodiment of the invention produced in
Example 1.
Claims (11)
1. A heated smoking article comprising an aerosol-generating substrate, wherein the aerosol- generating substrate comprises a rod comprising a gathered sheet of homogenised tobacco material circumscribed by a wrapper and the sheet of homogenised tobacco material is crimped. 5
2. A heated smoking article according to claim 1 wherein the sheet of homogenised tobacco material has a width of at least about 25 mm.
3. A heated smoking article according to claim 1 or 2 in which the aerosol-generating substrate is a rod having a length between 5 mm and 20 mm.
4. A heated smoking article according to any preceding claim in which the sheet of homogenised 10 tobacco has a thickness of between 50 µm and 300 µm.
5. A heated smoking article according to any preceding claim in which the sheet of homogenised tobacco has an aerosol former content of greater than 5% on a dry weight basis.
6. A heated smoking article according to any preceding claim in which the sheet of homogenised tobacco has an aerosol former content of between 5% and 30% by weight on a dry weight basis. 15
7. A heated smoking article according to any preceding claim in which the aerosol-generating substrate further comprises a thread, yarn, tape or filament to which one or more additives have been applied, the thread, yarn, tape or filament being incorporated into the gathered sheet of homogenised tobacco material.
8. A heated smoking article according to any one of claims 1 to 7 comprising a combustible heat source and the aerosol-generating substrate downstream of the combustible heat source. 20
9. A heated smoking article according to any one of claims 1 to 7 when used in an electrically heated aerosol-generating system.
10. A heated smoking article according to claim 1, substantially as herein described with reference to any embodiment disclosed.
11. A heated smoking article substantially as herein described with reference to any embodiment shown 25 in the accompanying drawings.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11250571 | 2011-05-31 | ||
EP11250571.4 | 2011-05-31 | ||
PCT/EP2012/060230 WO2012164009A2 (en) | 2011-05-31 | 2012-05-31 | Rods for use in smoking articles |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ617760A NZ617760A (en) | 2016-01-29 |
NZ617760B2 true NZ617760B2 (en) | 2016-05-03 |
Family
ID=
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