EP3446573B1 - Wrapping paper for a smoking article - Google Patents
Wrapping paper for a smoking article Download PDFInfo
- Publication number
- EP3446573B1 EP3446573B1 EP17187689.9A EP17187689A EP3446573B1 EP 3446573 B1 EP3446573 B1 EP 3446573B1 EP 17187689 A EP17187689 A EP 17187689A EP 3446573 B1 EP3446573 B1 EP 3446573B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wrapping paper
- burn
- base paper
- previous
- paper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000000391 smoking effect Effects 0.000 title claims description 42
- 239000000654 additive Substances 0.000 claims description 38
- 230000000996 additive effect Effects 0.000 claims description 27
- 239000000945 filler Substances 0.000 claims description 25
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 239000002657 fibrous material Substances 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000001860 citric acid derivatives Chemical class 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 159000000021 acetate salts Chemical class 0.000 claims description 2
- 229920000615 alginic acid Polymers 0.000 claims description 2
- 235000010443 alginic acid Nutrition 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 229910052570 clay Inorganic materials 0.000 claims description 2
- 229910001410 inorganic ion Inorganic materials 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 150000002823 nitrates Chemical class 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 150000004760 silicates Chemical class 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000000454 talc Substances 0.000 claims description 2
- 229910052623 talc Inorganic materials 0.000 claims description 2
- 150000003892 tartrate salts Chemical class 0.000 claims description 2
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 150000004684 trihydrates Chemical class 0.000 claims description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 description 53
- 241000208125 Nicotiana Species 0.000 description 37
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 37
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 5
- 229960002715 nicotine Drugs 0.000 description 5
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000008365 aqueous carrier Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 229940088417 precipitated calcium carbonate Drugs 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- FOPMDZJEFHUNBD-UHFFFAOYSA-N 2-oxidanylpropane-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O FOPMDZJEFHUNBD-UHFFFAOYSA-N 0.000 description 1
- FZIPCQLKPTZZIM-UHFFFAOYSA-N 2-oxidanylpropane-1,2,3-tricarboxylic acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O.OC(=O)CC(O)(C(O)=O)CC(O)=O FZIPCQLKPTZZIM-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- 239000001856 Ethyl cellulose Substances 0.000 description 1
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000019325 ethyl cellulose Nutrition 0.000 description 1
- 229960004667 ethyl cellulose Drugs 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 229960002900 methylcellulose Drugs 0.000 description 1
- 229920003087 methylethyl cellulose Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- AVTYONGGKAJVTE-OLXYHTOASA-L potassium L-tartrate Chemical compound [K+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O AVTYONGGKAJVTE-OLXYHTOASA-L 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 239000001508 potassium citrate Substances 0.000 description 1
- 229960002635 potassium citrate Drugs 0.000 description 1
- QEEAPRPFLLJWCF-UHFFFAOYSA-K potassium citrate (anhydrous) Chemical compound [K+].[K+].[K+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O QEEAPRPFLLJWCF-UHFFFAOYSA-K 0.000 description 1
- 235000011082 potassium citrates Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 239000001472 potassium tartrate Substances 0.000 description 1
- 229940111695 potassium tartrate Drugs 0.000 description 1
- 235000011005 potassium tartrates Nutrition 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009936 smoking Methods 0.000 description 1
- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- A24D1/02—Cigars; Cigarettes with special covers
-
- 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
- A24D1/02—Cigars; Cigarettes with special covers
- A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/14—Carboxylic acids; Derivatives thereof
- D21H17/15—Polycarboxylic acids, e.g. maleic acid
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/30—Alginic acid or alginates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/20—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
- D21H19/34—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12 comprising cellulose or derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/34—Ignifugeants
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/10—Packing paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H5/00—Special paper or cardboard not otherwise provided for
- D21H5/12—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials
- D21H5/14—Special paper or cardboard not otherwise provided for characterised by the use of special fibrous materials of cellulose fibres only
- D21H5/16—Tobacco or cigarette paper
Definitions
- the present invention relates to a wrapping paper for a smoking article and a smoking article comprising a wrapping paper.
- US 5,379,788 teaches a cigarette system which has a greater number of puffs than a conventional cigarette of same dimensions and length of tobacco rod, namely at least about 14 puffs.
- the cigarettes are intended to be partially smoked, extinguished, stored and then resmoked.
- a filter is attached to the tobacco rod of the cigarette constructed to provide a per-puff delivery profile of tar, nicotine and flavor to the smoker which is approximately the same for both smokings of the cigarette.
- the greater-than-normal number of puffs is achieved by employing a slower burning tobacco blend, greater tobacco density and/or burn rate retardant paper.
- US 2011/083,687 A1 discloses a burn rate of a smoking article which is reduced by incorporating into the paper a filler having a median particle size larger than about 2.5 microns and thereby increasing the number of puffs.
- Japanese Patent No. 2834325 discloses a cigarette in which a cut tobacco density is set at 300 mg/cc or more in order to decrease the combustion rate of the cut tobacco rod, thereby increasing the number of puffs provided by the cigarette.
- US 2006/0021625 A1 relates to make-your-own cigarettes and packaged kits and components of make-your- own cigarette. It describes a wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a fibrous material, a filler material, and burning additives.
- the problem of the present invention is to provide a wrapping paper that can increase the puff count of a smoking article without changing the tobacco rod length or diameter and without impacting on the TNCO levels of the smoking article.
- the inventors have found that by providing a wrapping paper with a certain porosity and certain amount of a burning additive it is possible to increase the puff count of the smoking article.
- a first aspect of the present invention relates to a wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a fibrous material, a filler material and one or more burning additives, wherein a paper porosity of the base paper is of 10 to 60 CU, a total amount of burning additive is of 0.1 to 0.7 wt.-% based on the dry weight of the base paper, and a basis weight of the base paper is 20 to 26 g/m 2 .
- a smoking article comprising a charge of smokable material surrounded by a wrapping paper according to the first aspect of the invention is disclosed.
- the cigarette 10 has a tobacco rod 11 consisting of a tobacco filler 13 that is wrapped with a wrapping paper 12 of the present invention in the form of a column.
- An ordinary filter 15 may be attached to the proximal end (namely, the downstream end in the inhaling direction) 11b of the tobacco rod 11 by using a tipping paper 14 according to a conventional method.
- a plurality of stripe-shaped burn-suppressing regions 122 which are coated as will be explained in the forthcoming description, are formed on one of the surfaces of the base paper 121 that constitutes the wrapping paper 12 of the present invention. These stripe-shaped burn-suppressing regions 122 are formed apart from each other in the circumferential direction of the tobacco rod 11.
- Non-burn-suppressing regions 123 are formed between the adjacent stripe-shaped burn-suppressing regions 122. Since the regions 123 are constituted by a part of the base paper 121, they can burn in an ordinary smoking state. Therefore, the regions 123 each act as a non-burn-suppressing region.
- the stripe-shaped burn-suppressing regions 122 each may have a width of 1 to 6 mm in the circumferential direction. The distance between the adjacent burn-suppressing regions 122 may be 2 to 20 mm.
- a non-burn-suppressing region 124 may be provided to the region covering a distance d from the tip 11a of the base paper 121.
- FIG. 3 is a schematic perspective view, partly broken away, showing an example of a cigarette that is wrapped with a cigarette paper having annular band-shaped burn-suppressing regions according to another embodiment of the present invention.
- the cigarette 20 has a similar structure to that of the cigarette 10 shown in FIG. 2 , except for the structure of the burn-suppressing regions in the wrapping paper. Therefore, in FIG. 3 , an identical reference number is assigned to the same element as the constitutional element in FIG. 2 , and the explanation thereof is omitted.
- annular band-shaped burn-suppressing regions 211 are formed on the base paper 121 of the wrapping paper 21 wrapping the tobacco filler 13, defining burn-suppressing regions. These annular band-shaped burn-suppressing regions 211 are formed apart from each other in the longitudinal direction of the tobacco rod 11.
- Non-burn-suppressing regions 212 are formed between the adjacent annular band-shaped burn-suppressing regions 211. Since the non-burn-suppressing regions 212 are constituted by a part of the base paper 121, they can burn in an ordinary smoking state. Therefore, the regions 212 each act as non-burn-suppressing region, as the regions 123 in FIG. 2 do.
- the annular band-shaped burn-suppressing regions 211 each may have a width of 4 to 7 mm in the longitudinal direction. The distance between the adjacent burn-suppressing regions 24 may be 18 to 25 mm.
- Smoking articles as referred to herein are not particularly limited and can for example be cigarettes, cigarillos or the like. They typically have a generally cylindrical rod shaped configuration and include a charge, roll, or column of smokable material, such as shredded tobacco (e.g. in cut filler form), which is surrounded by a paper wrapper forming a so-called "tobacco rod".
- a cigarette or cigarillo usually also has a cylindrical filter element aligned in end-to-end relationship with the tobacco rod.
- the filter element may, for example, comprise a plug of cellulose acetate tow, and the tow is circumscribed by a wrapper material known as "plug wrap".
- the filter element is attached to one end of the tobacco rod using a circumscribing wrapping material known as "tipping wrapper".
- the filter element wrapped by the tipping wrapper is known as "mouthpiece element”.
- wt.-% is to be understood as weight percent, based on the dry weight of the base paper of the wrapping paper, unless explicitly otherwise specified. In the present disclosure, all amounts given in wt.-% in a particular embodiment add up to 100 wt.-%. The weight percent are thereby calculated by dividing the mass of each component by the dry mass of the base paper.
- TNCO levels as referred to herein stand for tar, nicotine and carbon monoxide levels and can be measured by any suitable method. In the present invention this is done according to ISO 3308:2012.
- the symbol "CU” herein designates the CORESTA air permeability unit that is commonly used in paper specifications by smoking article designers.
- the CORESTA air permeability unit is defined as: "the volumetric flow rate of air in cubic centimeters per minute (cm 3 /min) passing through a 1 square centimeter (cm 2 ) sample of substrate at an applied pressure difference of 1 kilo-Pascal (kPa).” and are measured according to ISO 6565:2011.
- the number of puffs of a smoking article may be measured by any suitable method. In the present invention this is done according to ISO 3308:2012.
- the present invention relates to a wrapping paper for a smoking article comprising a base paper, wherein the base paper comprises a fibrous material, a filler material and one or more burning additives, wherein a paper porosity of the base paper is of 10 to 60 CU, a total amount of burning additive is of 0.1 to 0.7 wt.-% based on the dry weight of the base paper and a basis weight of the base paper is 20 to 26 g/m 2 .
- a wrapping paper with such porosity and amount of burning additive it is possible to increase the puff count of the smoking article.
- the paper porosity of the base paper is 10 to 50 CU, e.g. 15 to 45 CU.
- the paper porosity of the base paper is 10 to 20 CU, e.g. 13 to 17 CU, e.g. 15 CU.
- the paper porosity of the base paper is 25 to 35 CU, e.g. 28 to 32 CU, e.g. 30 CU.
- the paper porosity of the base paper is 40 to 50 CU, e.g. 43 to 47 CU, e.g. 45 CU. This further increases the puff count of the smoking article.
- the burning additive is included in the base paper in an amount of 0.2 to 0.6 wt.-%, e.g. 0.3 to 0.5 wt.-% based on the dry weight of the base paper.
- the total amount of burning additive is in an amount of 0.2 to 0.4 wt.-%, e.g. 0.3 wt.-%, based on the dry weight of the base paper.
- the total amount of burning additive is in an amount of 0.3 to 0.5 wt.-%, e.g. 0.4 wt.-%, based on the dry weight of the base paper.
- the total amount of burning additive is in an amount of 0.4 to 0.6 wt.-%, e.g. 0.5 wt.-%, based on the dry weight of the base paper. This further increases the puff count of the smoking article.
- the burning additive is selected from the group consisting of citrate salts, e.g. sodium and potassium citrate, acetate salts, e.g. sodium and potassium acetate, phosphate salts, e.g. sodium and potassium phosphate, tartrate salts, e.g. sodium and potassium tartrate, nitrate salts, e.g. sodium and potassium nitrate, or mixtures thereof.
- citrate salts e.g. sodium and potassium citrate
- acetate salts e.g. sodium and potassium acetate
- phosphate salts e.g. sodium and potassium phosphate
- tartrate salts e.g. sodium and potassium tartrate
- nitrate salts e.g. sodium and potassium nitrate
- the burning additive is not particularly limited, as long as it is suitable for use in a smoking article.
- citrate salts are used.
- the amount of filler in the base paper is 17 to 28 wt.-%, e.g. 20 to 25 wt.-%, based on the dry weight of the base paper.
- the amount of filler in the base paper is 19 to 25 wt.-%, e.g. 21 to 23 wt.-%, e.g. 22 wt.-%, based on the dry weight of the base paper.
- the amount of filler in the base paper is 22 to 28 wt.-%, e.g. 24 to 26 wt.-%, e.g. 25 wt.-%, based on the dry weight of the base paper.
- the amount of filler in the base paper is 20 to 26 wt.-%, e.g. 22 to 24 wt.-%, e.g. 23 wt.-%, based on the dry weight of the base paper. This amount of filler provides an adequate resistance to manufacturing forces to which the wrapping paper is subject to during high speed manufacturing and also allows obtaining a desired opacity of the wrapping paper.
- the filler in the wrapping paper is selected from the group of calcium carbonate, such as precipitated calcium carbonate (PCC) or ground calcium carbonate (GCC), kaolin, clay, talc, titanium dioxide, alumina trihydrate, precipitated silica and silicates (PSS), and mixtures thereof.
- PCC precipitated calcium carbonate
- GCC ground calcium carbonate
- kaolin such as clay, talc, titanium dioxide, alumina trihydrate, precipitated silica and silicates (PSS), and mixtures thereof.
- PSC precipitated silica and silicates
- the filler is not particularly limited, as long as it is suitable for use in a smoking article.
- calcium carbonate is used.
- the paper porosity of the base paper is 10 to 20 CU, e.g. 13 to 17 CU, e.g. 15 CU
- the total amount of burning additive is in an amount of 0.2 to 0.4 wt.-%, e.g. 0.3 wt.-%, based on the dry weight of the base paper
- the amount of filler in the base paper is 19 to 25 wt.-%, e.g. 21 to 23 wt.-%, e.g. 22 wt.-%, based on the dry weight of the base paper.
- the paper porosity of the base paper is 25 to 35 CU, e.g. 28 to 32 CU, e.g. 30 CU
- the total amount of burning additive is in an amount of 0.3 to 0.5 wt.-%, e.g. 0.4 wt.-%, based on the dry weight of the base paper
- the amount of filler in the base paper is 22 to 28 wt.-%, e.g. 24 to 26 wt.-%, e.g. 25 wt.-%, based on the dry weight of the base paper.
- the paper porosity of the base paper is 40 to 50 CU, e.g. 43 to 47 CU, e.g. 45 CU
- the total amount of burning additive is in an amount of 0.4 to 0.6 wt.-%, e.g. 0.5 wt.-%, based on the dry weight of the base paper
- the amount of filler in the base paper is 20 to 26 wt.-%, e.g. 22 to 24 wt.-%, e.g. 23 wt.-%, based on the dry weight of the base paper.
- the balance to 100 wt.-% of the dry weight of the base paper is essentially filler and fibrous material.
- the basis weight of the base paper is 20 to 26 g/m 2 , e.g. 21 to 24 g/m 2 , or e.g. 23 to 25 g/m 2 , e.g. 24 g/m 2 .
- the air diffusivity of the base paper is 1.0 to 2.0 cm/s, e.g. 1.0 to 1.8 cm/s, or e.g. 1.2 to 2.0 cm/s, or e.g. 1.2 to 1.8 cm/s, or e.g. 1.2 to 1.6 cm/s, or e.g. 1.4 to 1.8 cm/s, or e.g. 1.4 to 1.6 cm/s.
- the wrapping paper may be used in a "low ignition propensity" smoking article.
- a "low ignition propensity" smoking article is one that has been designed to be less likely than a conventional cigarette to ignite furnishings and equipment, e.g. soft furnishings such as a couch or mattress.
- a low ignition propensity smoking article will continue to burn when freely suspended such as in the holder of an ashtray or when being held in the hand without puffing ("free burn"). The tendency for a cigarette to go out during free burn is referred to as "self-extinguishment”.
- LIP bedding or upholstered furniture
- FASE The likelihood of a smoking article to extinguish while burning in free air (referred to as FASE) may be measured by any suitable method. In the present invention this is done according to ISO 12863:2010.
- the base paper may comprise a plurality of burn-suppressing regions that are provided apart from each other.
- the burn-suppressing regions may be provided on a surface of the base paper or embedded within a matrix of the base paper.
- the plurality of burn-suppressing regions may be provided on a same surface of the base paper.
- one or more of the plurality of burn-suppressing regions may be provided on a first surface of the base paper and the remaining of the plurality of burn-suppressing regions may be provided on a second, opposite surface of the base paper.
- burn-suppressing regions are not further limited and may vary according to the specific requirements of the smoking article.
- the burn-suppressing regions are in a form of stripes. In one embodiment all stripes are parallel to each other. In another embodiment at least two stripes are non-parallel to each other.
- These burn-suppressing regions may contain additives that reduce the air diffusivity of the base paper.
- the additives that may be applied to the wrapper may be any of those used in the art to reduce the ignition propensity of smoking articles.
- the burn-suppressing regions contain at least one additive that reduces the air diffusivity of the base paper, where the additives are selected from the group consisting of alginates, polyvinyl alcohol, polyvinyl acetates, including partially hydrolysed derivatives and copolymers, modified and unmodified starches, cellulose derivatives, such as carboy-methyl cellulose, ethyl-cellulose and hydroxymethyl-cellulose, and combinations thereof.
- the one or more additives may further comprise inorganic ions, such as phosphates, mono- or divalent metal salts, silicas and other agents known in the art to modify the burn rate, and combinations thereof.
- the additives may be applied to the wrapping paper with a liquid carrier, which may be in the form of a solution, suspension, emulsion or a combination thereof.
- the liquid carrier may be aqueous, non-aqueous or a combination thereof and may contain an emulsifying agent depending on the nature of the additives.
- a suspension of additive may be applied within an aqueous carrier.
- the aqueous carrier penetrates the base paper transporting the additive into its matrix. Once the carrier evaporates, the additive is left within the base paper matrix where it can reduce the air diffusivity either before or during the burning of the smoking article.
- the liquid carrier is allowed to evaporate allowing the wrapping paper to dry and for the additive to set within the matrix of the base paper.
- the air diffusivity of the burn-suppressing regions is 0.10 to 0.35 cm/s, e.g. 0.15 to 0.35 cm/s, or e.g. 0.10 to 0.30 cm/s, or e.g. 0.15 to 0.30 cm/s, or e.g. 0.15 to 0.25 cm/s, or e.g. 0.20 to 0.30 cm/s, or e.g. 0.20 cm/s to 0.25 cm/s.
- the ratio of air diffusivity between the burn-suppressing regions and the non-burn-suppressing regions in the wrapping paper is in the range of 5% to 35%, e.g. 10% to 35%, or e.g. 15% to 35%, or e.g. 5% to 30%, or e.g. 10% to 30%, or e.g. 15% to 30%, or e.g. 10% to 25%, or e.g. 15% to 25%.
- the fibrous material is a cellulosic fibrous material.
- the present invention further relates to a smoking article comprising a wrapping paper as in the embodiments described above and in which the wrapping paper surrounds a charge, roll or column of smokable material to form a tobacco rod.
- the burn-suppressing regions are in a form of stripes extending in a longitudinal direction of the tobacco rod and being spaced apart from each other in a circumferential direction of the tobacco rod.
- the burn-suppressing regions are in a form of round annular bands extending in a circumferential direction of the tobacco rod and being spaced from each other in a longitudinal direction of the tobacco rod.
- the positive effect of the present invention i.e. the combination of an increased number of puffs without changing the tobacco rod length or diameter is due to the specific combination of a paper porosity of 10 to 60 CU and at least one burning additive in an amount of 0.1 to 0.7 wt.-% as laid out above.
- Cigarette A Cigarette B Tar 9.8 mg 10.0 mg Nicotine 0.80 mg 0.85 mg CO 9.0 mg 9.3 mg Puff count 6.8 8.1 LIP 100% 94% FASE 30% 8%
- Two 84 mm low ignition propensity cigarettes were prepared with the same tobacco blend. These cigarettes had both a 57 mm tobacco rod attached to a 27 mm filter by a tipping paper. The filters were cut from the same filter rod and the tipping papers were cut from the same reel. The tobacco rod of cigarette C was wrapped in the prior art wrapping paper from example 1 (paper A), while cigarette D was wrapped in the wrapping paper according to the invention from example 1 (paper B).
- Cigarette E Cigarette F Cigarette G Tar 6.0 6.0 6.3 Nicotine 0.6 0.5 0.5 CO 6.8 5.7 5.9 Puff count 6.1 7.1 7.3
Description
- The present invention relates to a wrapping paper for a smoking article and a smoking article comprising a wrapping paper.
- For most smokers, smoking of a single cigarette with around 7 to 12 puffs under standard smoking condition (ISO), depending on the tobacco rod length and its diameter, provides a satisfactory smoking experience. In order to reach the number of desired puffs, several solutions are known from the state of the art.
-
US 5,379,788 teaches a cigarette system which has a greater number of puffs than a conventional cigarette of same dimensions and length of tobacco rod, namely at least about 14 puffs. The cigarettes are intended to be partially smoked, extinguished, stored and then resmoked. A filter is attached to the tobacco rod of the cigarette constructed to provide a per-puff delivery profile of tar, nicotine and flavor to the smoker which is approximately the same for both smokings of the cigarette. The greater-than-normal number of puffs is achieved by employing a slower burning tobacco blend, greater tobacco density and/or burn rate retardant paper. -
US 2011/083,687 A1 discloses a burn rate of a smoking article which is reduced by incorporating into the paper a filler having a median particle size larger than about 2.5 microns and thereby increasing the number of puffs. - Japanese Patent No.
2834325 -
US 2006/0021625 A1 relates to make-your-own cigarettes and packaged kits and components of make-your- own cigarette. It describes a wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a fibrous material, a filler material, and burning additives. - The problem of the present invention is to provide a wrapping paper that can increase the puff count of a smoking article without changing the tobacco rod length or diameter and without impacting on the TNCO levels of the smoking article.
- The inventors have found that by providing a wrapping paper with a certain porosity and certain amount of a burning additive it is possible to increase the puff count of the smoking article.
- A first aspect of the present invention relates to a wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a fibrous material, a filler material and one or more burning additives, wherein a paper porosity of the base paper is of 10 to 60 CU, a total amount of burning additive is of 0.1 to 0.7 wt.-% based on the dry weight of the base paper, and a basis weight of the base paper is 20 to 26 g/m2.
- In another aspect of the present invention, a smoking article comprising a charge of smokable material surrounded by a wrapping paper according to the first aspect of the invention is disclosed.
- Further aspects and embodiments of the invention are disclosed in the dependent claims and can be taken from the following description and examples, without being limited thereto.
- The enclosed drawings should illustrate embodiments of the present invention and convey a further understanding thereof. In connection with the description it serves as explanation of concepts and principles of the invention. Other embodiments and many of the stated advantages can be derived in relation to the drawings.
-
FIG. 1 shows an enlarged schematic perspective view showing an example of a smoking article according to the present invention. Asmoking article 40 shown inFIG. 1 is provided with asmokable rod 410 having afront end 410a and a base end 410b constituting an ignition end and afilter 420 having afront end 420a and abase end 420b. In thecigarette rod 410 and thefilter 420, the base end 410b of the smokable rod and thefront end 420a of the filter are abutted against each other, whereby thesmokable rod 410 and thefilter 420 are connected by atipping paper 430. Thesmokable rod 410 is constituted of arod 411 of tobacco filler and awrapping paper 412 wrapping an outer circumferential surface of thetobacco filler rod 411. Awrapping paper 412 is constituted of a wrapping paper according to the present invention. -
FIG. 2 is a schematic perspective view, partly broken away, showing an example of a cigarette that is wrapped with a cigarette paper having stripe-shaped burn-suppressing regions according to one embodiment of the present invention. - The
cigarette 10 has atobacco rod 11 consisting of atobacco filler 13 that is wrapped with awrapping paper 12 of the present invention in the form of a column. Anordinary filter 15 may be attached to the proximal end (namely, the downstream end in the inhaling direction) 11b of thetobacco rod 11 by using atipping paper 14 according to a conventional method. - A plurality of stripe-shaped burn-suppressing
regions 122, which are coated as will be explained in the forthcoming description, are formed on one of the surfaces of thebase paper 121 that constitutes thewrapping paper 12 of the present invention. These stripe-shaped burn-suppressingregions 122 are formed apart from each other in the circumferential direction of thetobacco rod 11. - Non-burn-suppressing
regions 123 are formed between the adjacent stripe-shaped burn-suppressingregions 122. Since theregions 123 are constituted by a part of thebase paper 121, they can burn in an ordinary smoking state. Therefore, theregions 123 each act as a non-burn-suppressing region. For example, the stripe-shaped burn-suppressingregions 122 each may have a width of 1 to 6 mm in the circumferential direction. The distance between the adjacent burn-suppressingregions 122 may be 2 to 20 mm. - In the cigarette shown in
FIG. 2 , a non-burn-suppressingregion 124 may be provided to the region covering a distance d from thetip 11a of thebase paper 121. -
FIG. 3 is a schematic perspective view, partly broken away, showing an example of a cigarette that is wrapped with a cigarette paper having annular band-shaped burn-suppressing regions according to another embodiment of the present invention. - The
cigarette 20 has a similar structure to that of thecigarette 10 shown inFIG. 2 , except for the structure of the burn-suppressing regions in the wrapping paper. Therefore, inFIG. 3 , an identical reference number is assigned to the same element as the constitutional element inFIG. 2 , and the explanation thereof is omitted. - In the
cigarette 20 shown inFIG. 3 , a plurality of annular band-shaped burn-suppressingregions 211 are formed on thebase paper 121 of thewrapping paper 21 wrapping thetobacco filler 13, defining burn-suppressing regions. These annular band-shaped burn-suppressingregions 211 are formed apart from each other in the longitudinal direction of thetobacco rod 11. - Non-burn-suppressing
regions 212 are formed between the adjacent annular band-shaped burn-suppressingregions 211. Since the non-burn-suppressingregions 212 are constituted by a part of thebase paper 121, they can burn in an ordinary smoking state. Therefore, theregions 212 each act as non-burn-suppressing region, as theregions 123 inFIG. 2 do. For example, the annular band-shaped burn-suppressingregions 211 each may have a width of 4 to 7 mm in the longitudinal direction. The distance between the adjacent burn-suppressing regions 24 may be 18 to 25 mm. - Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
- All values given in the present disclosure are to be understood to be complemented by the word "about", unless it is clear to the contrary from the context.
- Smoking articles as referred to herein are not particularly limited and can for example be cigarettes, cigarillos or the like. They typically have a generally cylindrical rod shaped configuration and include a charge, roll, or column of smokable material, such as shredded tobacco (e.g. in cut filler form), which is surrounded by a paper wrapper forming a so-called "tobacco rod". A cigarette or cigarillo usually also has a cylindrical filter element aligned in end-to-end relationship with the tobacco rod. The filter element may, for example, comprise a plug of cellulose acetate tow, and the tow is circumscribed by a wrapper material known as "plug wrap". Typically, the filter element is attached to one end of the tobacco rod using a circumscribing wrapping material known as "tipping wrapper". The filter element wrapped by the tipping wrapper is known as "mouthpiece element".
- As used herein, wt.-% is to be understood as weight percent, based on the dry weight of the base paper of the wrapping paper, unless explicitly otherwise specified. In the present disclosure, all amounts given in wt.-% in a particular embodiment add up to 100 wt.-%. The weight percent are thereby calculated by dividing the mass of each component by the dry mass of the base paper.
- TNCO levels as referred to herein stand for tar, nicotine and carbon monoxide levels and can be measured by any suitable method. In the present invention this is done according to ISO 3308:2012.
- The symbol "CU" herein designates the CORESTA air permeability unit that is commonly used in paper specifications by smoking article designers. The CORESTA air permeability unit is defined as: "the volumetric flow rate of air in cubic centimeters per minute (cm3/min) passing through a 1 square centimeter (cm2) sample of substrate at an applied pressure difference of 1 kilo-Pascal (kPa)." and are measured according to ISO 6565:2011.
- The number of puffs of a smoking article may be measured by any suitable method. In the present invention this is done according to ISO 3308:2012.
- The present invention relates to a wrapping paper for a smoking article comprising a base paper, wherein the base paper comprises a fibrous material, a filler material and one or more burning additives, wherein a paper porosity of the base paper is of 10 to 60 CU, a total amount of burning additive is of 0.1 to 0.7 wt.-% based on the dry weight of the base paper and a basis weight of the base paper is 20 to 26 g/m2. By providing a wrapping paper with such porosity and amount of burning additive it is possible to increase the puff count of the smoking article.
- In certain embodiments of the present wrapping paper, the paper porosity of the base paper is 10 to 50 CU, e.g. 15 to 45 CU. For example, in some embodiments the paper porosity of the base paper is 10 to 20 CU, e.g. 13 to 17 CU, e.g. 15 CU. In other embodiments, the paper porosity of the base paper is 25 to 35 CU, e.g. 28 to 32 CU, e.g. 30 CU. In further embodiments, the paper porosity of the base paper is 40 to 50 CU, e.g. 43 to 47 CU, e.g. 45 CU. This further increases the puff count of the smoking article.
- In certain embodiments of the present wrapping paper, the burning additive is included in the base paper in an amount of 0.2 to 0.6 wt.-%, e.g. 0.3 to 0.5 wt.-% based on the dry weight of the base paper. For example, in some embodiments the total amount of burning additive is in an amount of 0.2 to 0.4 wt.-%, e.g. 0.3 wt.-%, based on the dry weight of the base paper. In other embodiments, the total amount of burning additive is in an amount of 0.3 to 0.5 wt.-%, e.g. 0.4 wt.-%, based on the dry weight of the base paper. In further embodiments, the total amount of burning additive is in an amount of 0.4 to 0.6 wt.-%, e.g. 0.5 wt.-%, based on the dry weight of the base paper. This further increases the puff count of the smoking article.
- In certain embodiments of the present wrapping paper, the burning additive is selected from the group consisting of citrate salts, e.g. sodium and potassium citrate, acetate salts, e.g. sodium and potassium acetate, phosphate salts, e.g. sodium and potassium phosphate, tartrate salts, e.g. sodium and potassium tartrate, nitrate salts, e.g. sodium and potassium nitrate, or mixtures thereof.
- The burning additive is not particularly limited, as long as it is suitable for use in a smoking article. In certain embodiments citrate salts are used.
- In certain embodiments of the present wrapping paper, the amount of filler in the base paper is 17 to 28 wt.-%, e.g. 20 to 25 wt.-%, based on the dry weight of the base paper. For example, the amount of filler in the base paper is 19 to 25 wt.-%, e.g. 21 to 23 wt.-%, e.g. 22 wt.-%, based on the dry weight of the base paper. In other embodiments, the amount of filler in the base paper is 22 to 28 wt.-%, e.g. 24 to 26 wt.-%, e.g. 25 wt.-%, based on the dry weight of the base paper. In further embodiments, the amount of filler in the base paper is 20 to 26 wt.-%, e.g. 22 to 24 wt.-%, e.g. 23 wt.-%, based on the dry weight of the base paper. This amount of filler provides an adequate resistance to manufacturing forces to which the wrapping paper is subject to during high speed manufacturing and also allows obtaining a desired opacity of the wrapping paper.
- In certain embodiments of the present smoking article comprising a wrapping paper, the filler in the wrapping paper is selected from the group of calcium carbonate, such as precipitated calcium carbonate (PCC) or ground calcium carbonate (GCC), kaolin, clay, talc, titanium dioxide, alumina trihydrate, precipitated silica and silicates (PSS), and mixtures thereof.
- Just like the burning additive, the filler is not particularly limited, as long as it is suitable for use in a smoking article. In certain embodiments calcium carbonate is used.
- In one embodiment, the paper porosity of the base paper is 10 to 20 CU, e.g. 13 to 17 CU, e.g. 15 CU, the total amount of burning additive is in an amount of 0.2 to 0.4 wt.-%, e.g. 0.3 wt.-%, based on the dry weight of the base paper, and the amount of filler in the base paper is 19 to 25 wt.-%, e.g. 21 to 23 wt.-%, e.g. 22 wt.-%, based on the dry weight of the base paper.
- In another embodiment, the paper porosity of the base paper is 25 to 35 CU, e.g. 28 to 32 CU, e.g. 30 CU, the total amount of burning additive is in an amount of 0.3 to 0.5 wt.-%, e.g. 0.4 wt.-%, based on the dry weight of the base paper, and the amount of filler in the base paper is 22 to 28 wt.-%, e.g. 24 to 26 wt.-%, e.g. 25 wt.-%, based on the dry weight of the base paper.
- In a further embodiment, the paper porosity of the base paper is 40 to 50 CU, e.g. 43 to 47 CU, e.g. 45 CU, the total amount of burning additive is in an amount of 0.4 to 0.6 wt.-%, e.g. 0.5 wt.-%, based on the dry weight of the base paper, and the amount of filler in the base paper is 20 to 26 wt.-%, e.g. 22 to 24 wt.-%, e.g. 23 wt.-%, based on the dry weight of the base paper.
- According to certain embodiments, the balance to 100 wt.-% of the dry weight of the base paper is essentially filler and fibrous material.
- In the present wrapping paper, the basis weight of the base paper is 20 to 26 g/m2, e.g. 21 to 24 g/m2, or e.g. 23 to 25 g/m2, e.g. 24 g/m2. By providing a base paper with a basis weight comprised in these ranges it is possible to obtain a desired opacity of the wrapping paper while controlling the level of CO.
- In certain embodiments of the present wrapping paper, the air diffusivity of the base paper is 1.0 to 2.0 cm/s, e.g. 1.0 to 1.8 cm/s, or e.g. 1.2 to 2.0 cm/s, or e.g. 1.2 to 1.8 cm/s, or e.g. 1.2 to 1.6 cm/s, or e.g. 1.4 to 1.8 cm/s, or e.g. 1.4 to 1.6 cm/s.
- In one embodiment of the invention, the wrapping paper may be used in a "low ignition propensity" smoking article. A "low ignition propensity" smoking article is one that has been designed to be less likely than a conventional cigarette to ignite furnishings and equipment, e.g. soft furnishings such as a couch or mattress. Ideally, a low ignition propensity smoking article will continue to burn when freely suspended such as in the holder of an ashtray or when being held in the hand without puffing ("free burn"). The tendency for a cigarette to go out during free burn is referred to as "self-extinguishment".
- The capability of a smoking article to extinguish or to generate sufficient heat to continue burning, and thus potentially cause ignition of bedding or upholstered furniture (referred to as LIP) may be measured by any suitable method. In the present invention this is done according to ISO 12863:2010.
- The likelihood of a smoking article to extinguish while burning in free air (referred to as FASE) may be measured by any suitable method. In the present invention this is done according to ISO 12863:2010.
- In certain embodiments of the present wrapping paper, the base paper may comprise a plurality of burn-suppressing regions that are provided apart from each other. The burn-suppressing regions may be provided on a surface of the base paper or embedded within a matrix of the base paper. The plurality of burn-suppressing regions may be provided on a same surface of the base paper. Alternatively, one or more of the plurality of burn-suppressing regions may be provided on a first surface of the base paper and the remaining of the plurality of burn-suppressing regions may be provided on a second, opposite surface of the base paper.
- The shape and amount of these burn-suppressing regions is not further limited and may vary according to the specific requirements of the smoking article. In certain embodiments the burn-suppressing regions are in a form of stripes. In one embodiment all stripes are parallel to each other. In another embodiment at least two stripes are non-parallel to each other.
- These burn-suppressing regions may contain additives that reduce the air diffusivity of the base paper. The additives that may be applied to the wrapper may be any of those used in the art to reduce the ignition propensity of smoking articles.
- In certain embodiments of the present wrapping paper, the burn-suppressing regions contain at least one additive that reduces the air diffusivity of the base paper, where the additives are selected from the group consisting of alginates, polyvinyl alcohol, polyvinyl acetates, including partially hydrolysed derivatives and copolymers, modified and unmodified starches, cellulose derivatives, such as carboy-methyl cellulose, ethyl-cellulose and hydroxymethyl-cellulose, and combinations thereof. The one or more additives may further comprise inorganic ions, such as phosphates, mono- or divalent metal salts, silicas and other agents known in the art to modify the burn rate, and combinations thereof.
- The additives may be applied to the wrapping paper with a liquid carrier, which may be in the form of a solution, suspension, emulsion or a combination thereof. The liquid carrier may be aqueous, non-aqueous or a combination thereof and may contain an emulsifying agent depending on the nature of the additives.
- In one embodiment, a suspension of additive may be applied within an aqueous carrier. The aqueous carrier penetrates the base paper transporting the additive into its matrix. Once the carrier evaporates, the additive is left within the base paper matrix where it can reduce the air diffusivity either before or during the burning of the smoking article. Once applied to the base paper, the liquid carrier is allowed to evaporate allowing the wrapping paper to dry and for the additive to set within the matrix of the base paper.
- In certain embodiments of the present wrapping paper, the air diffusivity of the burn-suppressing regions is 0.10 to 0.35 cm/s, e.g. 0.15 to 0.35 cm/s, or e.g. 0.10 to 0.30 cm/s, or e.g. 0.15 to 0.30 cm/s, or e.g. 0.15 to 0.25 cm/s, or e.g. 0.20 to 0.30 cm/s, or e.g. 0.20 cm/s to 0.25 cm/s.
- In certain embodiments of the present wrapping paper, the ratio of air diffusivity between the burn-suppressing regions and the non-burn-suppressing regions in the wrapping paper is in the range of 5% to 35%, e.g. 10% to 35%, or e.g. 15% to 35%, or e.g. 5% to 30%, or e.g. 10% to 30%, or e.g. 15% to 30%, or e.g. 10% to 25%, or e.g. 15% to 25%. By providing such ratios of air diffusivity between the burn-suppressing regions and the non-burn suppressing regions it is possible to provide a low ignition propensity smoking article with a reduced impact on taste.
- In certain embodiments of the present wrapping paper, the fibrous material is a cellulosic fibrous material.
- The present invention further relates to a smoking article comprising a wrapping paper as in the embodiments described above and in which the wrapping paper surrounds a charge, roll or column of smokable material to form a tobacco rod.
- In certain embodiments of the present smoking article, when a tobacco rod is wrapped by the wrapping paper, the burn-suppressing regions are in a form of stripes extending in a longitudinal direction of the tobacco rod and being spaced apart from each other in a circumferential direction of the tobacco rod.
- In certain embodiments of the present smoking article, when a tobacco rod is wrapped by the wrapping paper, the burn-suppressing regions are in a form of round annular bands extending in a circumferential direction of the tobacco rod and being spaced from each other in a longitudinal direction of the tobacco rod.
- Without being bound to a certain theory, the positive effect of the present invention, i.e. the combination of an increased number of puffs without changing the tobacco rod length or diameter is due to the specific combination of a paper porosity of 10 to 60 CU and at least one burning additive in an amount of 0.1 to 0.7 wt.-% as laid out above.
- The above embodiments can be combined arbitrarily, if appropriate. Further possible embodiments and implementations of the invention comprise also combinations of features not explicitly mentioned in the foregoing or in the following with regard to the examples of the invention. Particularly, a person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the invention.
- The present invention will now be described in detail with reference to examples thereof. However, these examples are illustrative and do not limit the scope of the invention.
- Two 84 mm cigarettes with increased puff count were prepared with the same tobacco blend. These cigarettes had both a 63 mm tobacco rod attached to a 21 mm filter by a tipping paper. The filters were cut from the same filter rod and the tipping papers were cut from the same reel. The tobacco rod of cigarette A was wrapped in a prior art wrapping paper (paper A), while cigarette B was wrapped in a wrapping paper according to the invention (paper B). In both wrapping papers the burn-suppressing regions were 6 mm wide annular bands separated between them by 18 mm in a construction similar to the one depicted in
FIG. 3 . The specifications of the respective wrapping papers are indicated in Table 1 below.Table 1 Paper A Paper B Basis weight 27 g/m2 24 g/m2 Porosity 80 CU 45 CU Air diffusivity in the burn-suppressing regions 0.045 cm/s 0.230 cm/s Air diffusivity in the non-burn-suppressing regions (base paper air diffusivity) 2.3 cm/s 1.8 cm/s Burning additive type Citrate salt Citrate salt Burning additive amount 1.4 wt.-% 0.5 wt.-% Filler (calcium carbonate) 27.7 wt.-% 20 wt.-% - These cigarettes were measured under ISO 3308:2012 conditions to determine their TNCO levels as well as their respective puff counts. Self-extinguishment was also measured for these cigarettes, both when positioned on a surface (ISO 12863:2010 - referred to as LIP) and when burning in free air (ISO 12863:2010 - referred to as FASE). The results are shown in Table 2 below. It was found that wrapping paper B increased the puff count of cigarette B by 1.3 while maintaining very similar TNCO levels. Paper B also shows a high self-extinguishing rate when positioned on a surface and a significantly improved performance when burning in free air.
Table 2 Cigarette A Cigarette B Tar 9.8 mg 10.0 mg Nicotine 0.80 mg 0.85 mg CO 9.0 mg 9.3 mg Puff count 6.8 8.1 LIP 100% 94% FASE 30% 8% - Two 84 mm low ignition propensity cigarettes were prepared with the same tobacco blend. These cigarettes had both a 57 mm tobacco rod attached to a 27 mm filter by a tipping paper. The filters were cut from the same filter rod and the tipping papers were cut from the same reel. The tobacco rod of cigarette C was wrapped in the prior art wrapping paper from example 1 (paper A), while cigarette D was wrapped in the wrapping paper according to the invention from example 1 (paper B).
- These cigarettes were measured under ISO 3308:2012 conditions to determine their TNCO levels as well as their respective puff counts. Self-extinguishment was also measured for these cigarettes, both when positioned on a surface (ISO 12863:2010 - referred to as LIP) and when burning in free air (ISO 12863:2010 - referred to as FASE). The results are shown in Table 3 below. It was found that wrapping paper B increased the puff count of cigarette B by 0.9 while maintaining very similar TNCO levels. Paper B continues to show a high self-extinguishing rate when positioned on a surface and a significantly improved performance when burning in free air.
Table 3 Cigarette C Cigarette D Tar 8.0 8.1 Nicotine 0.62 0.68 CO 9.1 9.2 Puff count 5.6 6.5 LIP 98% 95% FASE 38% 23% - Three 84 mm cigarettes were prepared with the same tobacco blend. These cigarettes had all a 57 mm tobacco rod attached to a 27 mm filter by a tipping paper. The filters were cut from the same filter rod and the tipping papers were cut from the same reel. The tobacco rod of cigarette E was wrapped in a prior art wrapping paper (paper E), cigarette F was wrapped in a first wrapping paper according to the invention (paper F), and cigarette G was wrapped in a second wrapping paper according to the invention (paper G). The specifications of the respective wrapping papers are indicated in Table 4 below.
Table 4 Paper E Paper F Paper G Basis weight 26 g/m2 24 g/m2 24 g/m2 Porosity 45 CU 30 CU 15 CU Burning additive type Citrate salt Citrate salt Citrate salt Burning additive (citrate) 1.0 wt.-% 0.4 wt.-% 0.3 wt.-% Filler (calcium carbonate) 31.25 wt.-% 25 wt.-% 22 wt.-% - These cigarettes were measured under ISO 3308:2012 conditions to determine their TNCO levels as well as their respective puff counts. The results are shown in Table 5 below. It was found that wrapping papers F and G increased the puff count of cigarettes F and G by 1.0 and 1.2, respectively, while maintaining very similar TNCO levels to those measured for cigarette E.
Table 5 Cigarette E Cigarette F Cigarette G Tar 6.0 6.0 6.3 Nicotine 0.6 0.5 0.5 CO 6.8 5.7 5.9 Puff count 6.1 7.1 7.3
Claims (14)
- A wrapping paper for a smoking article, comprising a base paper, wherein the base paper comprises a fibrous material, a filler material, and one or more burning additives, wherein:a paper porosity of the base paper is 10 to 60 CU; anda total amount of burning additive is of 0.1 to 0.7 wt.-% based on the dry weight of the base paper; characterized in that a basis weight of the base paper is 20 to 26 g/m2.
- The wrapping paper according to claim 1, wherein the burning additive is selected from the group consisting of citrate salts, acetate salts, phosphate salts, tartrate salts, nitrate salts, or mixtures thereof.
- The wrapping paper according to any of the previous claims, wherein the amount of filler is 17 to 28 wt.-% based on the dry weight of the base paper.
- The wrapping paper according to any of the previous claims, wherein the filler material is selected from the group consisting of calcium carbonate, kaolin, clay, talc, titanium dioxide, alumina trihydrate, precipitated silica and silicates (PSS), or mixtures thereof.
- The wrapping paper according to any of the previous claims, wherein the air diffusivity of the base paper is 1.0 to 2.0 cm/s.
- The wrapping paper according to any of the previous claims, further comprising a plurality of burn-suppressing regions that are provided apart from each other.
- The wrapping paper according to any of the previous claims, wherein the burn-suppressing regions are provided on a surface of the base paper.
- The wrapping paper according to any of the previous claims 1 - 7, wherein the burn-suppressing regions are provided embedded in a base paper matrix.
- The wrapping paper according to any of the previous claims 6 - 8, wherein the air diffusivity of the burn-suppressing regions is 0.10 to 0.35 cm/s.
- The wrapping paper according to any of the previous claims 6 - 9, wherein the ratio of air diffusivity between the burn-suppressing regions and the non-burn-suppressing regions is in the range of 5% to 35%.
- The wrapping paper according to any of the previous claims 6 - 10, wherein the burn-suppressing regions contain at least one additive that reduces the air diffusivity of the base paper, and wherein said additives are selected from the group consisting of alginates, polyvinyl alcohol, polyvinyl acetates, modified and unmodified starches, cellulose derivatives, inorganic ions, and mixtures thereof.
- The wrapping paper according to any of the previous claims 6 - 11, wherein the burn-suppressing regions are in a form of stripes.
- The wrapping paper according to any of the previous claims, wherein the fibrous material is a cellulosic fibrous material.
- A smoking article, comprising a charge of smokable material surrounded by a wrapping paper according to any of the previous claims 1-13.
Priority Applications (19)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17187689.9A EP3446573B1 (en) | 2017-08-24 | 2017-08-24 | Wrapping paper for a smoking article |
PL17187689T PL3446573T3 (en) | 2017-08-24 | 2017-08-24 | Wrapping paper for a smoking article |
JP2020511536A JP2020531031A (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking equipment |
EA202191093A EA202191093A1 (en) | 2017-08-24 | 2018-08-14 | SMOKING PRODUCT WRAPPAPER |
JP2020511510A JP2020531029A (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking equipment |
PL18755455T PL3654785T3 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
CN201880054799.9A CN111031815B (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking articles |
EP18755454.8A EP3654784A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
EA202090288A EA038118B1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
ES18755455T ES2919339T3 (en) | 2017-08-24 | 2018-08-14 | Rolling paper for a smoking article |
PCT/EP2018/072015 WO2019038133A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
US16/631,707 US20200163373A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping Paper For A Smoking Article |
EA202090289A EA038708B1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
US16/635,269 US20210030055A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping Paper For A Smoking Article |
CN201880054800.8A CN111065283B (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking articles |
PCT/EP2018/072020 WO2019038136A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
KR1020207006216A KR20200045494A (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking items |
KR1020207006215A KR20200045493A (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for smoking items |
EP18755455.5A EP3654785B1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP17187689.9A EP3446573B1 (en) | 2017-08-24 | 2017-08-24 | Wrapping paper for a smoking article |
Publications (2)
Publication Number | Publication Date |
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EP3446573A1 EP3446573A1 (en) | 2019-02-27 |
EP3446573B1 true EP3446573B1 (en) | 2020-11-04 |
Family
ID=59702574
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17187689.9A Active EP3446573B1 (en) | 2017-08-24 | 2017-08-24 | Wrapping paper for a smoking article |
EP18755455.5A Active EP3654785B1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
EP18755454.8A Withdrawn EP3654784A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
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EP18755455.5A Active EP3654785B1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
EP18755454.8A Withdrawn EP3654784A1 (en) | 2017-08-24 | 2018-08-14 | Wrapping paper for a smoking article |
Country Status (9)
Country | Link |
---|---|
US (2) | US20210030055A1 (en) |
EP (3) | EP3446573B1 (en) |
JP (2) | JP2020531031A (en) |
KR (2) | KR20200045494A (en) |
CN (2) | CN111065283B (en) |
EA (3) | EA038708B1 (en) |
ES (1) | ES2919339T3 (en) |
PL (2) | PL3446573T3 (en) |
WO (2) | WO2019038133A1 (en) |
Family Cites Families (23)
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US5060675A (en) * | 1990-02-06 | 1991-10-29 | R. J. Reynolds Tobacco Company | Cigarette and paper wrapper therefor |
US5161551A (en) * | 1991-04-12 | 1992-11-10 | Philip Morris Incorporated | Paper wrapper having improved ash characteristics |
GB9122935D0 (en) | 1991-10-30 | 1991-12-18 | Rothmans Benson & Hedges | Novel cigarette system |
JPH07327654A (en) | 1994-06-08 | 1995-12-19 | Masahiro Kishida | Cigarette for taking a puff |
JP3049857U (en) | 1997-10-29 | 1998-06-26 | 照子 西井 | Cigarette structure aimed at reducing CO2 gas halving and harmful substance yield by half |
US6827087B2 (en) * | 2002-11-19 | 2004-12-07 | Joseph T. Wanna | Cigarette with burn rate modification |
US20060021625A1 (en) * | 2004-07-30 | 2006-02-02 | Philip Morris Usa Inc. | Make-your-own smoking article with controlled burn rate |
UA90299C2 (en) * | 2005-03-15 | 2010-04-26 | Джапан Тобакко Инк. | Cigarette paper with low fire spreading |
UA91125C2 (en) * | 2006-03-30 | 2010-06-25 | Джапан Тобакко Инк. | Lowly burnable wrapping paper for cigarettes |
BRPI0807557B1 (en) * | 2007-02-23 | 2019-01-15 | Schweitzer Mauduit Int Inc | reduced diffusion article wrappers leading to reduced ignition predisposition characteristics |
KR101342839B1 (en) * | 2008-11-12 | 2013-12-17 | 니뽄 다바코 산교 가부시키가이샤 | Wrapping paper for low ignition propensity cigarette |
GB0903136D0 (en) * | 2009-02-25 | 2009-04-08 | British American Tobacco Co | Smoking articles and method for manufacturing smoking articles |
US20110083687A1 (en) | 2009-10-09 | 2011-04-14 | Philip Morris Usa Inc. | Cigarette filter to reduce smoke deliveries in later puffs |
EP2549895A1 (en) * | 2010-03-22 | 2013-01-30 | British American Tobacco (Investments) Limited | Lip smoking article wrapper, smoking article, method and apparatus |
DE102010013669A1 (en) | 2010-04-01 | 2011-10-06 | Delfortgroup Ag | Perforated cigarette paper |
US20110271968A1 (en) * | 2010-05-07 | 2011-11-10 | Carolyn Rierson Carpenter | Filtered Cigarette With Modifiable Sensory Characteristics |
GB201100218D0 (en) * | 2011-01-07 | 2011-02-23 | British American Tobacco Co | Smoking article |
US20120227754A1 (en) * | 2011-03-10 | 2012-09-13 | Norman Alan B | Smoking articles and wrapping materials therefor |
GB201207211D0 (en) * | 2012-04-25 | 2012-06-06 | British American Tobacco Co | Smoking articles |
CA2873533A1 (en) * | 2012-05-16 | 2013-11-21 | Altria Client Services Inc. | Cigarette wrapper with novel pattern |
EP2879529B1 (en) * | 2012-08-06 | 2022-03-30 | Philip Morris Products S.A. | Smoking article with mouth end cavity |
EP2906057A1 (en) * | 2012-10-11 | 2015-08-19 | Schweitzer-Mauduit International, Inc. | Wrapper having reduced ignition proclivity characteristics |
DE102013109386B3 (en) | 2013-08-29 | 2015-01-15 | Delfortgroup Ag | Efficiently produced cigarette paper for self-extinguishing cigarettes, process for its preparation and a cigarette |
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2017
- 2017-08-24 PL PL17187689T patent/PL3446573T3/en unknown
- 2017-08-24 EP EP17187689.9A patent/EP3446573B1/en active Active
-
2018
- 2018-08-14 EP EP18755455.5A patent/EP3654785B1/en active Active
- 2018-08-14 WO PCT/EP2018/072015 patent/WO2019038133A1/en unknown
- 2018-08-14 EA EA202090289A patent/EA038708B1/en unknown
- 2018-08-14 EP EP18755454.8A patent/EP3654784A1/en not_active Withdrawn
- 2018-08-14 CN CN201880054800.8A patent/CN111065283B/en active Active
- 2018-08-14 WO PCT/EP2018/072020 patent/WO2019038136A1/en unknown
- 2018-08-14 JP JP2020511536A patent/JP2020531031A/en active Pending
- 2018-08-14 CN CN201880054799.9A patent/CN111031815B/en active Active
- 2018-08-14 EA EA202090288A patent/EA038118B1/en not_active IP Right Cessation
- 2018-08-14 US US16/635,269 patent/US20210030055A1/en not_active Abandoned
- 2018-08-14 US US16/631,707 patent/US20200163373A1/en not_active Abandoned
- 2018-08-14 KR KR1020207006216A patent/KR20200045494A/en not_active Application Discontinuation
- 2018-08-14 PL PL18755455T patent/PL3654785T3/en unknown
- 2018-08-14 JP JP2020511510A patent/JP2020531029A/en active Pending
- 2018-08-14 ES ES18755455T patent/ES2919339T3/en active Active
- 2018-08-14 EA EA202191093A patent/EA202191093A1/en unknown
- 2018-08-14 KR KR1020207006215A patent/KR20200045493A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
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None * |
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EA202090288A1 (en) | 2020-06-11 |
EA202191093A1 (en) | 2021-07-20 |
US20200163373A1 (en) | 2020-05-28 |
JP2020531031A (en) | 2020-11-05 |
CN111065283B (en) | 2022-04-26 |
CN111031815A (en) | 2020-04-17 |
PL3654785T3 (en) | 2022-07-11 |
EA038118B1 (en) | 2021-07-08 |
ES2919339T3 (en) | 2022-07-26 |
CN111065283A (en) | 2020-04-24 |
WO2019038136A1 (en) | 2019-02-28 |
EA202090289A1 (en) | 2020-06-11 |
JP2020531029A (en) | 2020-11-05 |
EA038708B1 (en) | 2021-10-07 |
EP3654785B1 (en) | 2022-03-30 |
US20210030055A1 (en) | 2021-02-04 |
EP3654784A1 (en) | 2020-05-27 |
PL3446573T3 (en) | 2021-05-04 |
KR20200045493A (en) | 2020-05-04 |
CN111031815B (en) | 2022-02-22 |
EP3446573A1 (en) | 2019-02-27 |
WO2019038133A1 (en) | 2019-02-28 |
EP3654785A1 (en) | 2020-05-27 |
KR20200045494A (en) | 2020-05-04 |
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