CN102427742B - Smoking article with improved flow restriction element - Google Patents
Smoking article with improved flow restriction element Download PDFInfo
- Publication number
- CN102427742B CN102427742B CN201080021713.6A CN201080021713A CN102427742B CN 102427742 B CN102427742 B CN 102427742B CN 201080021713 A CN201080021713 A CN 201080021713A CN 102427742 B CN102427742 B CN 102427742B
- Authority
- CN
- China
- Prior art keywords
- tubular portion
- smoking article
- current limiting
- filter
- limiting element
- 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 abstract description 81
- 239000000463 material Substances 0.000 claims abstract description 41
- 230000004888 barrier function Effects 0.000 claims abstract description 35
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 31
- 238000009423 ventilation Methods 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 8
- 239000005022 packaging material Substances 0.000 claims description 33
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 26
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 26
- 239000000779 smoke Substances 0.000 claims description 26
- 230000035699 permeability Effects 0.000 claims description 9
- 239000000945 filler Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 238000011068 loading method Methods 0.000 claims description 3
- 239000000123 paper Substances 0.000 description 64
- 235000019504 cigarettes Nutrition 0.000 description 40
- 241000208125 Nicotiana Species 0.000 description 19
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 19
- 229920002301 cellulose acetate Polymers 0.000 description 19
- 238000007493 shaping process Methods 0.000 description 13
- 230000002093 peripheral effect Effects 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 10
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 9
- 229960002715 nicotine Drugs 0.000 description 7
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 7
- -1 polypropylene Polymers 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000004080 punching Methods 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 159000000000 sodium salts Chemical class 0.000 description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920002223 polystyrene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229920001222 biopolymer Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-N diphosphoric acid Chemical compound OP(O)(=O)OP(O)(O)=O XPPKVPWEQAFLFU-UHFFFAOYSA-N 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 229920005839 ecoflex® Polymers 0.000 description 1
- 229920005845 ecovio® Polymers 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 108010037896 heparin-binding hemagglutinin Proteins 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical group [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229940005657 pyrophosphoric acid Drugs 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229960005137 succinic acid Drugs 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0283—Manufacture of tobacco smoke filters for filters with special features with means for a non-axial smoke flow
-
- 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
- A24D3/045—Tobacco smoke filters characterised by their shape or structure with smoke acceleration means, e.g. impact-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
- A24D1/00—Cigars; Cigarettes
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter 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
- 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
- A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
- A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
-
- 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
- A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
A smoking article (10) comprises: a rod of smokable material (12); and a filter (14) comprising a flow restriction element (26, 26') attached to the rod of smokable material (12). The flow restriction element (26, 26') comprises: a first upstream integral tubular portion (30, 30'); a second downstream integral tubular portion (32, 32') of substantially the same external diameter as the first tubular portion (30, 30'); and a third central integral tubular portion (34, 34') located between the first and second tubular portions (32, 32', 34, 34'), the third tubular portion (34, 34') being of reduced external diameter compared to the first and second tubular portions (30, 30', 32, 32'). A transverse barrier (36, 36') having at least one orifice (38, 38') provided therein is disposed between a first upstream cavity (40, 40') at least partially defined by an inner periphery of the first tubular portion (30, 30') and a second downstream cavity (42, 42') at least partially defined by an inner periphery of the second tubular portion (32, 32'). A ventilation zone in communication with the second cavity (42, 42') is provided at a location along the filter (14).
Description
Background technology
In multiple judicial power, there is the regulation that maximum carbon monoxide exports, tar exports and nicotine exports of constraint cigarette.
It is well known that, utilize the packaging material of low-permeability to provide cigarette and other smoking article, to reduce the sidestream smoke produced during cigarette and other smoking article are fuming.But, although the packaging material comprising low-permeability desirably reduce sidestream smoke, but these packaging material adversely can increase the output of the carbon monoxide that these smoking articles produce, and therefore increase the carbon monoxide of the mainstream smoke produced by these smoking articles and the ratio of tar.
Although air-breather may be used for the release reducing carbon monoxide and tar, high ventilation levels adversely may cause unacceptable low suction drag (RTD) level.In addition, the two is discharged mutually with particulate, so the ratio of air-breather on carbon monoxide and tar has less impact because air-breather decreases gas phase release.
Such as, the total RTD comprising the smoking article that one or more high density cellulose acetate filter segments may be used for having low-permeability packaging material and high ventilation levels increases to acceptable level.But high density cellulose acetate filter segments typically has slight influence to carbon monoxide release or is not having the influential tar that decreases to discharge simultaneously.
Therefore, provide a kind of such smoking article by expectation, described smoking article has the packaging material that reduce sidestream smoke and has and be less than or equal to the carbon monoxide of 1 and the ratio of tar.
Summary of the invention
According to the present invention, provide a kind of smoking article, described smoking article comprises: the bar be made up of the material can lighting suction; And filter, it comprises the current limiting element being attached to the bar be made up of the material can lighting suction.Current limiting element comprises: integral type first tubular portion of upstream; Integral type second tubular portion in downstream, its external diameter is substantially identical with the external diameter of the first tubular portion; With integral type the 3rd tubular portion at center, it is between the first tubular portion and the second tubular portion, and the 3rd tubular portion compares the external diameter with reduction with the first tubular portion with the second tubular portion.Between the first cavity that the horizontal barrier being wherein provided with at least one aperture is arranged in the upstream limited by the inner circumferential of the first tubular portion at least in part and second cavity in downstream limited by the inner circumferential of the second tubular portion at least in part.The ventilating zone be communicated with the second cavity is arranged on the position along filter.
According to the present invention, also provide a kind of for being included according to the current limiting element in smoking article of the present invention, described current limiting element comprises: integral type first tubular portion; Integral type second tubular portion, it has the external diameter substantially identical with the first tubular portion; Integral type the 3rd tubular portion at center, it is between the first tubular portion and the second tubular portion, and the 3rd tubular portion compares the external diameter with reduction with the first tubular portion with the second tubular portion; Horizontal barrier, be provided with at least one aperture in described horizontal barrier, described horizontal barrier is arranged between the first cavity limited by the inner circumferential of the first tubular portion at least in part and the second cavity limited by the inner circumferential of the second tubular portion at least in part; Be arranged in second or the 3rd one or more opening on surface of tubular portion, described one or more opening is communicated with the second cavity.
According to the present invention, also provide a kind of filter for smoking article, described filter comprises according to current limiting element of the present invention.
In whole description, term " upstream " and " downstream " to be aspirated through the relative position in the direction of the mainstream smoke of filter from the bar be made up of the material can lighting suction relative to period of being fuming at smoking article for all parts that describes smoking article of the present invention.
The smoking article that the height according to the present invention using the filter comprising current limiting element and the ventilating zone with above specific characteristic advantageously can produce the RTD with expectation is ventilated, wherein the carbon monoxide of mainstream smoke and the ratio of tar maintain acceptable value.Illustrating in further detail as following, even if be also like this when the bar be made up of the material can lighting suction of smoking article comprises the packaging material reducing sidestream smoke.
When without the need to carrying out significantly amendment, existing combination of filters and cigarette manufacturing equipment can be used advantageously to produce according to the smoking article with filter of the present invention, and wherein said filter comprises the current limiting element with above specific characteristic.Due to the shape of current limiting element, this current limiting element is flexible, and manufacturing in the process according to filter of the present invention and smoking article, especially filter according to the present invention is being attached to the bar be made up of the material can lighting suction so that during producing the process according to smoking article of the present invention, this current limiting element can be compressed.So advantageously help to use the combination of existing filter and cigarette manufacturing equipment to manufacture according to filter of the present invention and smoking article.
The external diameter of the 3rd tubular portion of current limiting element minimizing compared with the first tubular portion of current limiting element and the second tubular portion advantageously sets up ventilating zone between the periphery and the outside of the 3rd tubular portion of filter.Meanwhile, the first tubular portion of current limiting element advantageously provides reinforcement with the external diameter of the second tubular portion increase compared with the 3rd tubular portion of current limiting element, so as between the finger that such as smoking article is clamped in consumer time filter can not subside.
The mainstream smoke that first cavity of the upstream of current limiting element advantageously allows in use to be aspirated through the bar be made up of the material can lighting suction by further towards downstream suction by least one aperture in horizontal barrier before assemble around at least one aperture described.In addition, the first cavity of upstream helps prevent at least one aperture to block in period of being fuming.
Quantity and the size thereof in the aperture be arranged in horizontal barrier can be selected, to obtain the ratio of RTD and carbon monoxide and the tar expected.Preferably, horizontal barrier comprises single aperture, and more preferably, horizontal barrier comprises the single aperture at basic center.When transverse baffle comprises the aperture at single basic center, the diameter in this aperture is preferably between about 0.4mm with about between 0.8mm, and more preferably, the diameter in this aperture is about 0.6mm.
Preferably, the length at least one aperture is between about 0.2mm with about between 1mm, and more preferably, this length is about 0.7mm.In whole description, term " length " is used to indicate the size of the longitudinal direction along smoking article.The length at least one aperture equals the thickness of horizontal barrier.
Preferably, being dimensioned to of at least one aperture produces enough pressure drops, to make smoking article have between about 30mm WG (gauge, water gauge) and the RTD about between 120mmWG, more preferably, this RTD is at least about 40mm WG.
The horizontal barrier of impermeable cigarette can be any suitable shape.Such as, horizontal barrier can be substantially vertical with the longitudinal axis of smoking article.Or horizontal barrier can be shape that is Frusto-conical and that assemble or disperse relative to the direction of the mainstream smoke being aspirated through filter from the bar be made up of the material can lighting suction.In other embodiment, horizontal barrier can be recessed relative to the direction of the mainstream smoke being aspirated through filter from the bar be made up of the material can lighting suction or protrude.Preferably, horizontal barrier is recessed relative to the direction of the mainstream smoke being aspirated through filter from the bar be made up of the material can lighting suction.This is advantageously manufacturing in the process according to filter of the present invention and smoking article, especially filter according to the present invention being attached to the bar be made up of the material can lighting suction so that during producing the process according to smoking article of the present invention, the compression of current limiting element is made to become easy.
Second cavity in the downstream of current limiting element advantageously allow the mainstream smoke by being arranged on the one or more apertures suction in horizontal barrier in the mouth being inhaled into consumer before mix with the air aspirated by ventilating zone.
Ventilating zone is given at second cavity being arranged in the position in the downstream at least one aperture of the horizontal barrier of current limiting element of the current limiting element of filter and is provided ventilation from the mainstream smoke of the bar suction of being made up of the material can lighting suction.Preferably, the upstream at least one aperture in horizontal barrier does not provide ventilation.Only provide ventilation to advantageously limit the degree that consumer can attempt to aspirate more fiercely smoking article during aspirating in the downstream at least one aperture.Along with the flow of suction increases, compared with the smoking article comprising traditional cellulose acetate filter, the pressure drop at current limiting element place more promptly increases.Thus, consumer sucks the ventilation by increasing mainstream smoke more fiercely during aspirating, instead of increases the release of mainstream smoke.In addition, the downstream at least one aperture only in the transverse wall of current limiting element provides ventilation advantageously the function in the function of ventilating zone and at least one aperture to be separated (being respectively ventilation levels and RTD).
Preferably, filter is attached to by substantially air-locked tipping paper tape the bar be made up of the material can lighting suction.Preferably, ventilating zone comprises at least one row perforation circumferentially that the part through tipping paper is arranged, and more preferably, ventilating zone comprises at least one row perforation circumferentially that the part overlapping with the 3rd tubular portion of current limiting element through tipping paper is arranged.
Preferably, at least one row perforation is circumferentially positioned at and the position of the mouth end of smoking article at a distance of at least 12mm.
Perforation in tipping paper can be made during use conventional art structure smoking article or before use conventional art structure smoking article.Such as, the perforation in tipping paper can use online laser beam perforation, machine drilling or electrostatic perforations to produce.Preferably, tipping paper is by pre-punching.
In one embodiment, first cavity of current limiting element is limited by the first tubular portion of current limiting element and the inner circumferential of the 3rd tubular portion at least in part, and the second cavity of current limiting element is limited by the inner circumferential of the second tubular portion of current limiting element at least in part.
In this embodiment, preferably, in the cross machine direction upstream end face of the second tubular portion, one or more opening is provided with, the communication path between at least one row that described one or more opening forms the second cavity and ventilating zone perforation circumferentially.More preferably, in the cross machine direction upstream end face of the second tubular portion, be provided with multiple circumferentially substantially equidistantly isolated opening, the communication path between at least one row that these openings form the second cavity and ventilating zone perforation circumferentially.Such as, 12 circumferentially substantially equidistantly isolated openings can be provided with at the second tubular portion from the cross machine direction upstream end face that the 3rd tubular portion extends radially outwardly.
Preferably, the diameter of described one or more opening between about 0.3mm with about between 0.8mm, more preferably about 0.5mm.
In alternative embodiment, first cavity of current limiting element is limited by the inner circumferential of the first tubular portion of current limiting element at least in part, and the second cavity of current limiting element is limited by the second tubular portion of current limiting element and the inner circumferential of the 3rd tubular portion at least in part.
In this embodiment, preferably, in the circumferential surface of the 3rd tubular portion, one or more opening is provided with, the communication path between at least one row that described one or more opening forms the second cavity and ventilating zone perforation circumferentially.
Such as, a pair elongated relative opening can be set in the upstream circumferential surface of the 3rd tubular portion.
Preferably, according to the ventilation levels of smoking article of the present invention between about 50% with about between 90%, more preferably, according to the ventilation levels of smoking article of the present invention between about 60% with about between 80%, most preferably, this ventilation levels is about 70%.
Current limiting element can be made up of the combination of any suitable material or material.The suitable material that can form current limiting element includes but not limited to: the composition of plastics (such as, polypropylene, polyethylene, polystyrene, nylon, polysulfones, polyester and polyurethane), cellulosic material and these materials or compound.
Preferably, current limiting element is made up of biodegradable material, more preferably, is made up of biodegradable polymeric material.Suitable biodegradable polymeric material is known in the art and the brand name of the Novamont from Italian Novara that can commercially buy is Mater-Bi
polymeric material and be Ecoflex from the brand name of the BASF of Ludwigshafen, Germany
and Ecovio
polymeric material.
Preferably, current limiting element is single parts, and more preferably, current limiting element is single injection-molded parts.
Preferably, current limiting element has between about 10mm and the length about between 20mm, and more preferably, current limiting element has between about 12mm and the length about between 14mm, and most preferably, current limiting element has the length of about 13mm.
Preferably, the first tubular portion of current limiting element has the length at least about 4mm, and more preferably, the first tubular portion of current limiting element has the length at least about 5mm.
Preferably, the second tubular portion of current limiting element has the length at least about 3mm, and most preferably, the second tubular portion of current limiting element has the length of about 3.5mm.
Preferably, the 3rd tubular portion of current limiting element has the length at least about 3mm, and most preferably, the 3rd tubular portion of current limiting element has the length of about 3.5mm.
Preferably, the downstream end of the second tubular portion of horizontal barrier and current limiting element at a distance of at least about 1mm, more preferably, at a distance of at least about 1.5mm.
Preferably, first tubular portion of current limiting element and the second tubular portion have between about 6mm and the external diameter about between 9mm, more preferably, have between about 7mm and the external diameter about between 8.4mm, most preferably, have between about 7.5mm and the external diameter about between 7.9mm.
Preferably, the 3rd tubular portion of current limiting element has between about 4mm and the external diameter about between 7.5mm, more preferably, has between about 4.5mm and the external diameter about between 6.8mm, most preferably, has between about 4.5mm and the external diameter about between 5.5mm.
Filter can also comprise the one or more filter segment being positioned at current limiting element upstream.Alternately or additionally, filter can also comprise the one or more filter segment being positioned at current limiting element downstream.In a preferred embodiment, filter also comprises the first filter segment being positioned at current limiting element upstream and the second filter segment being positioned at current limiting element downstream.Preferably, the first filter segment and the second filter segment have between about 5mm and the length about between 12mm, more preferably, have between about 6mm and the length about between 8mm, most preferably, have the length of about 7mm.
When filter comprises the one or more filter segment being positioned at current limiting element upstream and the one or more filter segment being positioned at current limiting element downstream, upstream filter section and downstream filter section can be same or different.Such as, filter can comprise the section of a pair of identical cellulose acetate tow be arranged on the either side of current limiting element.Or filter can comprise the stopper of the cellulose acetate tow being positioned at current limiting element upstream and be positioned at the hollow tube of the such as paper in current limiting element downstream, cardboard or cellulose acetate.
Preferably, one or more filter segment comprises the filtering material of low particulate phase filter efficiency.Preferably, each particulate phase filter efficiency in one or more filter segment is less than about 30%, more preferably, is less than about 20%.In the especially preferred embodiments, filter comprises the first filter segment of the low particulate phase filter efficiency being positioned at current limiting element upstream and is positioned at second filter segment of low particulate phase filter efficiency in current limiting element downstream.
One or more filter segment can comprise the cellulosic material of such as cellulose acetate tow or the fiber filter material of other suitable low filter efficiency.When one or more filter segment comprises cellulose acetate tow, total danier of denier per filament and tow can be selected, to obtain the particulate phase efficiency and RTD expected.Preferably, cellulose acetate tow has about 8 or larger denier per filament, and has total danier of about 28000 or less.
Preferably, current limiting element and one or more filter segment (in case of presence) forming paper (plug wrap) band surround.In one embodiment, the substantially air-locked shaping paper tape of current limiting element and one or more filter segment surrounds, and preferably, surrounds with the shaping paper tape had between the permeability of about 7000Coresta unit and 20000Coresta unit.In alternative embodiment, current limiting element and the basic ventilative shaping paper tape of one or more filter segment surround.
Preferably, shaping paper tape adheres to the external peripheral surface of the first tubular portion of current limiting element.More preferably, forming paper adheres to the external peripheral surface of the first tubular portion of current limiting element, to set up substantially bubble-tight sealing in the outer surface of the first tubular portion.Most preferably, shaping paper tape adheres to the first tubular portion of current limiting element and the external peripheral surface of the second tubular portion.
When filter comprises the filter segment being positioned at current limiting element upstream, preferably, shaping paper tape adheres to the external peripheral surface of upstream filter section.More preferably, forming paper adheres to the external peripheral surface of the upstream filter section of current limiting element and the external peripheral surface of the first tubular portion, to set up substantially bubble-tight sealing in the outer surface of the first tubular portion of current limiting element.
When filter comprises the filter segment being positioned at current limiting element downstream, preferably, shaping paper tape adheres to the external peripheral surface of downstream filter section.
Shaping paper tape can use such as binding agent to adhere to current limiting element and one or more filter segment.The binding agent of good adhesion strength and higher surface tackiness can be provided to obtain bubble-tight sealing between shaping paper tape and the first tubular portion of current limiter by using.Suitable binding agent is known in the art and the brand name of the Henkel from Dusseldorf ,Germany that can commercially buy is Adhesin
binding agent.
As mentioned above, the filter comprising shaping paper tape is attached to preferably by substantially air-locked tipping paper tape the bar be made up of the material can lighting suction.
When filter comprise substantially air-locked shaping paper tape, preferably, online at least one row perforation circumferentially that formed, that arrange through the part of forming paper and tipping paper during ventilating zone is included in the manufacture of smoking article.
When filter comprises basic ventilative shaping paper tape, preferably, filter is attached to by the tipping paper tape of pre-punching the bar be made up of the material can lighting suction, and the tipping paper tape of described pre-punching comprises at least one row perforation circumferentially.
RTD according to smoking article of the present invention can regulate by using the tipping paper of pre-punching and ventilative forming paper.The size at least one aperture of current limiting element can be designed to allow substantially whole fresh air of the perforation in use flow through in tipping paper and ventilative forming paper to flow in second cavity in downstream.In addition, by arranging perforation in a part overlapping with the 3rd tubular portion of current limiting element for tipping paper, therefore ventilating zone, and by being separated with second cavity (mainstream smoke aspirated from the bar be made up of the material can lighting suction at the second cavity place in described downstream mixes with fresh air) in downstream ventilating zone, mainstream smoke can not flow upstream also be flowed out by the perforation in tipping paper.Thus, by using the tipping paper of different pre-punching or there is the forming paper of different porosity levels or their combinations, can advantageously make to change according to the ventilation levels of smoking article of the present invention.
Preferably, filter has between about 20mm and the total length about between 34mm, more preferably, has between about 25mm and the total length about between 30mm, most preferably, has the total length of about 27mm.
Preferably, there is according to the filter of smoking article of the present invention the RTD of the total encapsulation (encapsulated) between about 250mm WG and 350mmWG, more preferably, there is the RTD of the total encapsulation between about 275mm WG and 325mmWG.
Preferably, smoking article according to the present invention has the RTD do not encapsulated at least about 30mm WG, more preferably, has the RTD do not encapsulated at least about 40mmWG.
Preferably, the bar be made up of the material can lighting suction comprises the tobacco surrounded by packaging material, and more preferably, the bar be made up of the material can lighting suction comprises the tobacco cut filler surrounded by packaging material.
Preferably, the bar be made up of the material can lighting suction comprises packaging material, and described packaging material cause the sidestream smoke producing decrease.Be used according to the packaging material of the suitable minimizing sidestream smoke in smoking article of the present invention and be well-known in the art for the production of the method for this packaging material, and such as at US-A-5,152, explanation in 304.
Preferably, packaging material have higher basic weight and lower permeability.More preferably, packaging material are US-A-5,152, the type illustrated in 304.
Preferably, packaging material have at least about 35g/m
2basic weight, more preferably, have between about 35g/m
2about 60g/m
2between basic weight, most preferably, have between about 40g/m
2about 50g/m
2between basic weight.
Preferably, packaging material have about 18Coresta unit or less permeability, more preferably, have the permeability between about 4Coresta unit and about 18Coresta unit, most preferably, there is the permeability between about 5Coresta unit and about 8Coresta unit.
Preferably, packaging material comprise filler, and more preferably, packaging material comprise inorganic filler, and most preferably, packaging material comprise calcium carbonate.Preferably, packaging material have by weight between 20% and loadings of filler about between 50%, and more preferably, packaging material have the loadings of filler of about 40% by weight.
Preferably, packaging material also comprise combustion modifying agent.More preferably, packaging material have the combustion modifying agent between 0.3% and 5% by weight.Suitable combustion modifying agent is known in the art, and include but not limited to: inorganic acid or organic acid acid salt, comprise a sylvite of polyvalent mineral acid and sodium salt (monobasic potassium and sodium salt) (such as, phosphoric acid, pyrophosphoric acid, boric acid and sulfuric acid) and unitary sylvite and sodium salt (mono-potassium and sodium salt) (such as, citric acid, butanedioic acid and fumaric acid); Thermal decomposition, to produce the compound of acidic species material at the scene, comprises the polyacid salt with at least one Labile protons; Multiple ester, described multiple ester is acid precursors, comprises phosphoric acid ester (such as, the phosphatic sylvite of alpha-D-glucose-1-); And the combination of above material.Preferably, combustion modifying agent is acid salt, and more preferably, combustion modifying agent is potassium dihydrogen phosphate.
Preferably, smoking article according to the present invention has and is less than or equal to the carbon monoxide of 1 and the ratio of tar.
Preferably, smoking article according to the present invention has between about 3mg and the total nicotine free dry particulate matter (NFDPM) about between 12mg or " tar " release.
Accompanying drawing explanation
Only further illustrate the present invention in an illustrative manner with reference to the accompanying drawings, wherein:
Fig. 1 is the perspective view of the amplification of smoking article according to the first embodiment of the present invention, wherein tipping paper and filter forming paper by local expansion to represent the internal part of filter;
Fig. 2 is the partial lengthwise sectional view of the filter of the smoking article of Fig. 1;
Fig. 3 is the transverse sectional view of the current limiting element of the filter of the smoking article of the Fig. 2 obtained along line A-A (being illustrated by the dotted line in Fig. 2);
Fig. 4 is the partial lengthwise sectional view of the filter of smoking article according to a second embodiment of the present invention; And
Fig. 5 is the transverse sectional view of the current limiting element of the filter of the smoking article of the Fig. 4 obtained along line B-B (being illustrated by the dotted line in Fig. 3).
Detailed description of the invention
Cylindrical tobacco rod 12 and filter 14 is comprised according to the smoking article 10 of the first embodiment of the present invention shown in Fig. 1.Filter 14 is attached to tobacco rod 12 by tipping paper tape 16, described tipping paper tape 16 surrounds filter 14 and surrounds the adjacent part of tobacco rod 12, the adjacent part of described tobacco rod 12 comprises the charging 18 of tobacco cut filler, and the charging 18 of described tobacco cut filler is surrounded by the wrapping paper 20 of high basic weight, low-permeability.
Filter 14 comprises: the first filter segment 22, and described first filter segment 22 is adjacent with tobacco rod 12 and adjacent; Second filter segment 24, described first filter segment 22 is positioned at the mouth end place of smoking article 10; With the injection-molded current limiting element 26 of one, described current limiting element is arranged between the first filter segment 22 and the second filter segment 24.First filter segment 22 and the second filter segment 24 are preferably the cellulose acetate tow filter segment of low particulate efficiency.
First filter segment 22 and the second filter segment 24 and current limiting element 26 are surrounded by shaping paper tape 28.
As illustrated in further detail in fig. 2, the current limiting element 26 preferably formed by biodegradable polymeric material comprises: integral type first tubular portion 30 of upstream, and it is adjacent and adjacent with the first filter segment 22; Integral type second tubular portion 32 in downstream, its external diameter is basic identical with the external diameter of the first tubular portion 30, and adjacent and adjacent with the second filter segment 24; With integral type the 3rd tubular portion 34 at center, it is between the first tubular portion 30 and the second tubular portion 32, and compare with the second tubular portion 32 with the first tubular portion 30, described 3rd tubular portion 34 has the external diameter of reduction.Forming paper (plug wrap) 28 adheres to the external peripheral surface of the external peripheral surface of the first filter cell 22 and the first tubular portion 30 of current limiting element 26 by binding agent (not shown), to be formed as being airtight substantially in the outer surface of the first tubular portion 30 of current limiting element 26.
Because the 3rd tubular portion 34 compares the external diameter with reduction with the first tubular portion 30 with the second tubular portion 32, so the external peripheral surface of the inner surface of forming paper 28 and the 3rd tubular portion 34 is spaced apart, as shown in Figure 2.As further described below, the formation ventilating zone, space between the tipping paper tape 16 of forming paper 28 and overlap and the external peripheral surface of the 3rd tubular portion 34.
Current limiting element 26 also comprises horizontal barrier 36, is provided with the single center port 38 that diameter reduces in described horizontal barrier 36.As shown in Figure 2, between horizontal barrier 36 the first cavity 40 of being arranged in the upstream limited by the first tubular portion 30 of current limiting element 26 and the inner circumferential of the 3rd tubular portion 34 at least in part and second cavity 42 in downstream limited by the inner circumferential of the second tubular portion 32 of current limiting element at least in part.
By a part for the forming paper 28 overlapping with the 3rd tubular portion 34 at current limiting element 26 and tipping paper 16, a row or multi-row perforation 44 (being shown in broken lines in Fig. 1 and 2) is circumferentially set.As shown in Figure 3, in the cross machine direction upstream end face extended radially outwardly around the 3rd tubular portion 34 of the second tubular portion 32, multiple substantially circumferentially equidistantly isolated opening 46 is provided with.These openings 46 form the communication path be arranged between a row or multi-row perforation 44 circumferentially in tipping paper 16 and forming paper 28 and the second cavity 42, as shown in Figure 2.
In use, the mainstream smoke from the tobacco rod 12 of smoking article 10 passes through the first filter segment 22 of filter 14 by the first cavity 40 towards downstream suction to current limiting element 26.Be sucked into the mainstream smoke in the first cavity 40, concentrating around described center port 38 before entering into the second cavity 42 of current limiting element 26 towards downstream suction by the center port 38 of the horizontal barrier 36 of current limiting element 26 further.
Fresh air also by a row or multi-row perforation circumferentially 44 that is arranged in tipping paper 16 and forming paper 28 and be arranged in the cross machine direction upstream end face of the second tubular portion 32 multiple substantially circumferentially equidistantly isolated opening 46 be inhaled in the second cavity 42.The mainstream smoke sucked by center port 38 in horizontal barrier 36 by further towards downstream suction by the second filter cell 24 before mix with the fresh air in the second cavity 42.
During use, the high basic weight of tobacco rod 12, the wrapping paper 20 of low-permeability desirably reduce the sidestream smoke produced by smoking article 10 in known manner.
Similar to a great extent to the smoking article 10 according to the first embodiment of the present invention shown in Fig. 1 to 3 with design according to the structure of the smoking article of the second embodiment of the present invention shown in Figure 4 and 5.Use similar Reference numeral in figures 4 and 5 to indicate the feature corresponding with the feature of the above-mentioned smoking article according to the first embodiment of the present invention of smoking article according to a second embodiment of the present invention.
Only difference between smoking article 10 according to the first embodiment of the present invention shown in Fig. 1 to 3 and the smoking article according to the second embodiment of the present invention shown in Figure 4 and 5 is, a row or multi-row perforation 44 circumferentially in tipping paper 16 and forming paper 28 and form the position of the opening of communication path between the second cavity, and the position of horizontal barrier in current limiting element.
As shown in Figure 4, in the current limiting element 26 ' of the filter 14 of smoking article according to a second embodiment of the present invention, between the first cavity 40 ' that horizontal barrier 36 ' is arranged in the upstream limited by the inner circumferential of the first tubular portion 30 ' of current limiting element 26 ' at least in part and second cavity 42 ' in downstream limited by the second tubular portion 32 ' of current limiting element 26 ' and the inner circumferential of the 3rd tubular portion 34 ' at least in part.
In a second embodiment, as shown in Figure 5, in the circumferential surface of the 3rd tubular body portion 34 ' of current limiting element 26 ', be provided with a pair relative elongated open 46 ', described a pair relative elongated open 46 ' forms the communication path between a row or multi-row perforation 44 circumferentially in tipping paper 16 and forming paper 28 and the second cavity 42 '.
In use, fresh air is inhaled in the second cavity 42 ' by the elongated open 46 ' that tipping paper 16 is relative with a pair in the circumferential surface being arranged on the 3rd tubular body portion 34 ' with a row or multi-row perforation 44 circumferentially in forming paper 28, mixes with the mainstream smoke sucked by the center port 38 ' in horizontal barrier 36 ' at described second cavity 42 ' place fresh air.
Traditional plume manufacturing equipment structure can be used according to the tobacco rod 12 of the smoking article of the first embodiment of the present invention and the second embodiment, in traditional plume manufacturing equipment, tobacco cut filler 18 is formed as continuous print bar by air and wraps up with the continuous band of the wrapping paper 20 of high basic weight, low-permeability on conveyer belt, and the continuous band of described wrapping paper 20 is glued together along its longitudinal seam then.
Also the existing high rate filter bar manufacturing equipment structure adopting known combination technology can be used according to the filter 14 of the smoking article of the first embodiment of the present invention and the second embodiment.
Then, existing machine filter being attached to tobacco rod used during producing known cigarette with filter tip can be used in, by tipping paper tape 16 is adhered to around the adjacent part of filter 14 and tobacco rod 12, filter 14 and tobacco rod 12 be bonded to each other and attaching.
Table 1 gives the total amount of nicotine (SN) in the puff number (puff count) of following cigarette, cigarette, tar and carbon monoxide (CO) and CO/ tar ratio and CO/SN ratio: the first cigarette (cigarette A), it is according to the first embodiment of the present invention structure shown in Fig. 1 to 3, and wherein the first filter segment and the second filter segment are the stoppers of low particulate efficiency cellulose acetate tow; According to the second cigarette of the present invention (cigarette B), it is configured to identical with cigarette A major part, but the hollow cylindrical tube that wherein the second filter segment cellulose acetate tow is made replaces; According to the 3rd cigarette (cigarette C) of the present invention, it is configured to identical with cigarette A major part, but wherein the tobacco rod packaging material of high basic weight, low-permeability replace with the wrapping paper of traditional basic weight and permeability.
In order to compare, table 1 additionally provides three according to the total amount of nicotine (SN) in puff number that is of the present invention, that have the cigarette of traditional cellulose acetate tow filter, cigarette, tar and carbon monoxide (CO) and CO/ tar ratio and CO/SN ratio.Two in these three cigarettes comprise the tobacco rod (cigarette D and E) of packaging material with high basic weight, low-permeability, remain the pipe tobacco (cigarette F) that has the packaging material of traditional basic weight and permeability cigarette comprising.
Table 1
As shown in table 1, for there is the cigarette of traditional cellulose acetate tow filter, comprise high basic weight, the packaging material (cigarette D and E) of low-permeability cause increase carbon monoxide export.In addition, although have traditional cellulose acetate tow filter and high basic weight, the raising of ventilation levels of cigarette (cigarette D and E) of packaging material of low-permeability significantly reduces carbon monoxide and export, this does not affect the ratio of carbon monoxide and tar significantly.
Compared with there is the cigarette of traditional cellulose acetate tow filter, be all less than 1.0 according to the carbon monoxide of cigarette of the present invention (cigarette A, B and C) and the ratio of tar.Especially, as shown in table 1, in the puff number that there is the cigarette (cigarette B) of the second filter segment that high basic weight, the packaging material of low-permeability and the hollow cylindrical tube be made up of cellulose acetate tow are formed according to of the present invention and cigarette nicotine (SN) and tar export with the cigarette (cigarette F) of the packaging material with traditional cellulose acetate tow filter and traditional basic weight and permeability puff number and cigarette in nicotine (SN) and tar export very similar.But compared with cigarette F, although cigarette B comprises reduce the packaging material of sidestream smoke, the carbon monoxide of cigarette B exports and in the ratio of carbon monoxide and tar and carbon monoxide and cigarette, the ratio of nicotine advantageously significantly reduces.
Below exemplarily explain the present invention with reference to the smoking article comprising the filter with the first filter segment and the second filter segment, wherein said first filter segment and the second filter segment comprise the stopper that cellulose acetate tow is made.But, to be to be understood that, the filter with such a or multiple filter segment can be comprised according to smoking article of the present invention, described one or more filter segment comprises such as that paper is (such as, filter paper or carbon paper), the composition of cardboard, plastics (such as, polypropylene, polyethylene, polystyrene, nylon, polysulfones, polyester and polyurethane), biopolymer and these materials.
In addition, although below exemplarily explain the present invention with reference to the smoking article comprising the filter with current limiting element, the horizontal barrier in the aperture at single basic center is provided with in wherein said current limiting element, but should understand, the filter with so horizontal barrier can be comprised according to smoking article of the present invention, in this horizontal barrier, be provided with single acentric aperture or two or more apertures.
Claims (11)
1. a smoking article (10), described smoking article comprises:
The bar (12) be made up of the material can lighting suction;
Filter (14), described filter comprises the current limiting element (26,26 ') being attached to the described bar (12) be made up of the material can lighting suction, and described current limiting element (26,26 ') comprising:
Integral type first tubular portion (30,30 ') of upstream;
Integral type second tubular portion (32,32 ') in downstream, the external diameter of described second tubular portion is substantially identical with the external diameter of described first tubular portion (30,30 ');
Integral type the 3rd tubular portion (34 at center, 34 '), described 3rd tubular portion is positioned at described first tubular portion and the second tubular portion (30,30 ', 32,32 ') between, and with described first tubular portion and the second tubular portion (30,30 ', 32,32 ') compare, described 3rd tubular portion (34,34 ') has the external diameter of reduction; With
Cross the horizontal barrier (36 that described 3rd tubular portion extends, 36 '), at least one aperture (38 for crossing for plume is provided with in described horizontal barrier, 38 '), described horizontal barrier (36, 36 ') the first cavity (40 of upstream is arranged in, 40 ') and second cavity (42 in downstream, 42 ') between, first cavity of wherein said upstream is at least in part by described first tubular portion (30, 30 ') inner circumferential limits, second cavity in described downstream is at least in part by described second tubular portion (32, 32 ') inner circumferential limits, and
Ventilating zone, described ventilating zone and described second cavity (42,42 ') are communicated with, and described ventilating zone is based upon between the periphery of described filter (14) and the outside of the 3rd tubular portion (34,34 ');
Wherein, described filter (14) is attached to the described bar (12) be made up of the material can lighting suction by the band of tipping paper (16), and described ventilating zone comprises at least one row perforation circumferentially (44), described at least one row perforation is circumferentially through described tipping paper (16) and described current limiting element (26,26 ') part setting that the 3rd tubular portion (34,34 ') is overlapping;
Wherein, the second cavity (42 ') of described current limiting element (26 ') is limited by the inner circumferential of described second tubular portion and the 3rd tubular portion (32 ', 34 ') at least in part; And
In the circumferential surface of described 3rd tubular portion (34), be provided with one or more opening (46 '), described one or more opening forms the communication path between described second cavity (42 ') and described at least one row perforation circumferentially (44).
2. smoking article according to claim 1 (10), wherein, be provided with the aperture (38,38 ') at single basic center in described horizontal barrier (36,36 '), the diameter in described aperture is between 0.4mm and 0.8mm.
3. smoking article according to claim 1 and 2 (10), wherein, first cavity (40) of described current limiting element (26) is limited by the inner circumferential of described first tubular portion and the 3rd tubular portion (30,34) at least in part.
4. smoking article according to claim 1 (10), wherein, described filter (14) also comprises and is positioned at described current limiting element (26,26 ') upstream the first filter segment (22) and be positioned at second filter segment (24) in described current limiting element (26,26 ') downstream.
5. smoking article according to claim 1 (10), wherein, described smoking article also comprises packaging material (20), and described packaging material (20) have between 35g/m
2and 60g/m
2between basic weight, loadings of filler, the permeability between 2Coresta unit and 18 Coresta units and the combustion modifying agent by weight between 0.3% and 5% by weight between 20% and 50%.
6. smoking article according to claim 1 (10), described smoking article has the ventilation levels of at least 50%.
7. smoking article according to claim 1 (10), wherein, the length of described current limiting element (26,26 ') is at least 10mm.
8. smoking article according to claim 1 (10), wherein, described horizontal barrier (36,36 ') is recessed relative to the direction being aspirated through the mainstream smoke of described filter (14) from the described bar (12) be made up of the material can lighting suction.
9. smoking article according to claim 1 (10), the carbon monoxide of described smoking article and the ratio of tar are less than or equal to 1.
10. smoking article according to claim 1 (10), described smoking article has the ventilation levels of at least 60%.
11. smoking articles according to claim 1 (10), wherein, the length of described current limiting element (26,26 ') is at least 13mm.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09251336A EP2253231A1 (en) | 2009-05-18 | 2009-05-18 | Smoking article with improved flow restriction element |
| EP09251336.5 | 2009-05-18 | ||
| PCT/EP2010/003016 WO2010133334A1 (en) | 2009-05-18 | 2010-05-17 | Smoking article with improved flow restriction element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102427742A CN102427742A (en) | 2012-04-25 |
| CN102427742B true CN102427742B (en) | 2014-12-31 |
Family
ID=41138825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080021713.6A Active CN102427742B (en) | 2009-05-18 | 2010-05-17 | Smoking article with improved flow restriction element |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US20100288293A1 (en) |
| EP (2) | EP2253231A1 (en) |
| JP (1) | JP5710601B2 (en) |
| KR (1) | KR20120042761A (en) |
| CN (1) | CN102427742B (en) |
| AR (1) | AR079391A1 (en) |
| AU (1) | AU2010251445B2 (en) |
| BR (1) | BRPI1013065B1 (en) |
| CO (1) | CO6390089A2 (en) |
| DK (1) | DK2432338T3 (en) |
| ES (1) | ES2512017T3 (en) |
| HK (1) | HK1165233A1 (en) |
| MX (1) | MX2011012454A (en) |
| MY (1) | MY154297A (en) |
| PL (1) | PL2432338T3 (en) |
| PT (1) | PT2432338E (en) |
| RS (1) | RS53576B1 (en) |
| RU (1) | RU2524898C2 (en) |
| SG (1) | SG175910A1 (en) |
| SI (1) | SI2432338T1 (en) |
| TW (1) | TWI513414B (en) |
| UA (1) | UA103925C2 (en) |
| WO (1) | WO2010133334A1 (en) |
Families Citing this family (32)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2745081T3 (en) | 2006-03-28 | 2020-02-27 | Philip Morris Products Sa | Smoking item with a restrictor |
| US20080047571A1 (en) * | 2006-07-12 | 2008-02-28 | Philip Morris Usa Inc. | Smoking article with plate impactor |
| US8353298B2 (en) | 2006-07-12 | 2013-01-15 | Philip Morris Usa Inc. | Smoking article with impaction filter segment |
| US8424539B2 (en) | 2006-08-08 | 2013-04-23 | Philip Morris Usa Inc. | Smoking article with single piece restrictor and chamber |
| TW200900014A (en) | 2007-03-09 | 2009-01-01 | Philip Morris Prod | Smoking article filter with annular restrictor and downstream ventilation |
| TW200911141A (en) | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Super recessed filter cigarette restrictor |
| TW200911138A (en) | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Smoking articles with restrictor and aerosol former |
| US8424540B2 (en) | 2009-10-09 | 2013-04-23 | Philip Morris Usa Inc. | Smoking article with valved restrictor |
| US9138016B2 (en) | 2010-03-26 | 2015-09-22 | Philip Morris Usa Inc. | Smoking articles with significantly reduced gas vapor phase smoking constituents |
| EP2692252B1 (en) | 2011-03-31 | 2018-06-06 | Japan Tobacco, Inc. | Cigarette |
| UA115426C2 (en) * | 2011-09-09 | 2017-11-10 | Філіп Морріс Продактс С.А. | Smoking article filter including polymeric insert |
| EP2753198B1 (en) * | 2011-09-09 | 2016-08-10 | Philip Morris Products S.a.s. | Smoking article filter with flow restriction element and cavity |
| EP2653045A1 (en) * | 2012-04-20 | 2013-10-23 | Philip Morris Products S.A. | Smoking article including filter with flow restriction element and upstream ventilation |
| WO2013182995A1 (en) | 2012-06-07 | 2013-12-12 | Philip Morris Products S.A. | Smoking article having high density tobacco |
| US10034988B2 (en) | 2012-11-28 | 2018-07-31 | Fontem Holdings I B.V. | Methods and devices for compound delivery |
| US10342254B2 (en) | 2012-12-31 | 2019-07-09 | Philip Morris Products S.A. | Impermeable bead in hollow cigarette filter tube |
| CN104902768B (en) | 2012-12-31 | 2019-12-24 | 菲利普莫里斯生产公司 | Method and apparatus for manufacturing filters for smoking articles |
| WO2014102096A2 (en) | 2012-12-31 | 2014-07-03 | Philip Morris Products S.A. | Smoking article including flow restrictor |
| US9723876B2 (en) | 2013-03-15 | 2017-08-08 | Altria Client Services Llc | Electronic smoking article |
| MX2015013515A (en) | 2013-03-22 | 2016-10-26 | Altria Client Services Llc | Electronic smoking article. |
| BR112015031426B1 (en) | 2013-07-16 | 2021-12-14 | Philip Morris Products S.A. | SMOKING ARTICLE, FILTER FOR SMOKING ARTICLE AND USE THEREOF |
| BR112015032485B1 (en) | 2013-07-16 | 2022-10-11 | Philip Morris Products S.A | SMOKING ARTICLE |
| WO2015042412A1 (en) | 2013-09-20 | 2015-03-26 | E-Nicotine Technology. Inc. | Devices and methods for modifying delivery devices |
| MX2016008659A (en) * | 2013-12-31 | 2016-10-03 | Philip Morris Products Sa | Smoking article including flow restrictor in hollow tube. |
| EP3106044A4 (en) * | 2014-04-03 | 2017-11-08 | Japan Tobacco, Inc. | Low tar menthol cigarette |
| KR101530934B1 (en) * | 2014-06-27 | 2015-06-25 | 계정수 | Support Pipe for Quit Smoking with Bypass Suction Hole |
| GB201421803D0 (en) * | 2014-12-08 | 2015-01-21 | British American Tobacco Co | A smoking article, a filter and a method of manufacturing a smoking article |
| GB201503389D0 (en) * | 2015-02-27 | 2015-04-15 | British American Tobacco Co | A smoking article and filter unit therefor |
| KR20180059760A (en) * | 2015-09-30 | 2018-06-05 | 필립모리스 프로덕츠 에스.에이. | Smoking articles with reduced sidestream smoke |
| US11877593B2 (en) * | 2017-11-28 | 2024-01-23 | Philip Morris Products S.A. | Aerosol generating article having improved mouth end cavity |
| JP2022535830A (en) * | 2019-06-05 | 2022-08-10 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | Aerosol-generating article with an aerosol-cooling element having a peripheral opening |
| CA3204886A1 (en) * | 2020-12-11 | 2022-06-16 | Nicoventures Trading Limited | Article for use in an aerosol provision system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646941A (en) * | 1969-09-15 | 1972-03-07 | E A Carey Pipe Co | Cigarette and/or cigarette holder |
| US3877470A (en) * | 1974-05-02 | 1975-04-15 | Bio Gant Corp | Smoker{3 s filter device |
| GB2289612A (en) * | 1994-05-25 | 1995-11-29 | Andrew Brady | Tobacco smokers' mouthpieces |
| WO2007110650A1 (en) * | 2006-03-28 | 2007-10-04 | Philip Morris Products S.A. | Smoking article with a restrictor |
Family Cites Families (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2511898A (en) * | 1950-06-20 | Cigarette holder | ||
| US2547119A (en) * | 1947-04-08 | 1951-04-03 | James J Henderson | Cigarette |
| US2764513A (en) * | 1954-04-02 | 1956-09-25 | Abe R Brothers | Cigarette with means for removing deleterious products of combustion |
| US3323525A (en) * | 1964-07-14 | 1967-06-06 | Achilles Corp | Cigarette holder |
| US3318312A (en) * | 1964-07-27 | 1967-05-09 | Jr Joseph A Curtis | Cigarette assembly |
| US3234949A (en) * | 1964-09-18 | 1966-02-15 | Oswald C Svehaug | Cigarette construction |
| US3292635A (en) * | 1964-10-22 | 1966-12-20 | Maxwell H Kolodny | Integral cigarette-cigarette holder |
| US3389705A (en) * | 1966-04-29 | 1968-06-25 | Levavi David | Cigarette smoke filter device |
| US3441028A (en) * | 1967-03-27 | 1969-04-29 | Byron T Wall | Apparatus for and method of removing condensible compounds from tobacco smoke |
| US3533416A (en) * | 1968-05-08 | 1970-10-13 | American Filtrona Corp | Tobacco smoke filter |
| GB1236344A (en) * | 1968-08-01 | 1971-06-23 | Jack Gordon Johnson | Cigarette filter |
| GB1265966A (en) * | 1968-11-27 | 1972-03-08 | ||
| US3504677A (en) * | 1969-02-19 | 1970-04-07 | Max J Doppelt | Cigarette and/or cigarette holder |
| US3599646A (en) * | 1969-04-30 | 1971-08-17 | American Filtrona Corp | Cigarette filter |
| JPS49100888U (en) * | 1972-12-18 | 1974-08-30 | ||
| JPS579787B2 (en) * | 1973-05-15 | 1982-02-23 | ||
| US4038994A (en) * | 1975-11-10 | 1977-08-02 | Aikman Leslie N | Tobacco smoke filter unit |
| US4158364A (en) * | 1977-09-22 | 1979-06-19 | Albert P. Marinko | Tobacco smoke filter |
| US4343319A (en) * | 1980-11-28 | 1982-08-10 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| ES255077Y (en) * | 1980-12-17 | 1981-11-16 | IMPACT FILTER FOR BRUSHED CIGARETTES | |
| US4386618A (en) * | 1981-06-29 | 1983-06-07 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| NO155752C (en) * | 1981-08-05 | 1987-05-27 | British American Tobacco Co | ROEKEARTIKKEL. |
| US4506683A (en) * | 1983-05-09 | 1985-03-26 | Brown & Williamson Tobacco Corporation | Ventilated mouthpiece for a smoking article |
| US4559955A (en) * | 1983-06-20 | 1985-12-24 | Link Electronics Ltd | Controlled air bleed cigarette holder |
| US4646762A (en) * | 1983-12-05 | 1987-03-03 | Brown & Williamson Tobacco Corporation | Cigarette having a mouthpiece |
| US4620553A (en) * | 1984-05-22 | 1986-11-04 | Imperial Group Public Limited Company | Tobacco smoke filters |
| US4617946A (en) * | 1984-11-09 | 1986-10-21 | Brown & Williamson Tobacco Corporation | Tobacco smoke mouthpiece and method of making same |
| NL191233C (en) * | 1985-05-20 | 1995-04-03 | Tobacco Res & Dev | Cigarette with blockable air inlet. |
| CH669309A5 (en) * | 1985-08-26 | 1989-03-15 | Baumgartner Papiers Sa | |
| ATE65165T1 (en) * | 1988-02-10 | 1991-08-15 | Hans Elstner | SMOKE FILTER, ESPECIALLY FOR TOBACCO PIPES. |
| US4949736A (en) * | 1988-03-16 | 1990-08-21 | R. J. Reynolds Tobacco Company | Variable ventilation mouthpiece for a smoking article |
| JPH0361896U (en) * | 1989-10-23 | 1991-06-18 | ||
| US5152304A (en) | 1989-10-31 | 1992-10-06 | Philip Morris Incorporated | Wrapper for a smoking article |
| JPH0523158A (en) * | 1991-07-17 | 1993-02-02 | Daicel Chem Ind Ltd | Cigarette filter |
| DE19536505A1 (en) * | 1995-09-29 | 1997-04-10 | Biotec Biolog Naturverpack | Biodegradable filter material and process for its manufacture |
| DE19718296B4 (en) * | 1997-04-30 | 2006-06-29 | British American Tobacco (Germany) Gmbh | Ventilated filter cigarette with a coaxial filter element |
| IT1297058B1 (en) * | 1997-09-23 | 1999-08-03 | Luparini Alessandro Leonetti | CIGARETTE EQUIPPED WITH INERTIAL-HYPOBARIC DEVICE FOR THE HOLDING OF TAR CONTAINED IN TOBACCO SMOKE AND / OR |
| US6345625B1 (en) * | 1997-12-06 | 2002-02-12 | Kar Eng Chew | Filter for secondary smoke and smoking articles incorporating the same |
| KR100306915B1 (en) * | 1999-08-20 | 2001-09-24 | 송윤강 | Deffusing device for cigarette filter |
| US8424539B2 (en) * | 2006-08-08 | 2013-04-23 | Philip Morris Usa Inc. | Smoking article with single piece restrictor and chamber |
| TW200911141A (en) * | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Super recessed filter cigarette restrictor |
| US20080216850A1 (en) * | 2007-03-09 | 2008-09-11 | Philip Morris Usa Inc. | Restrictor attachment for unfiltered smoking article |
| TW200911138A (en) * | 2007-03-09 | 2009-03-16 | Philip Morris Prod | Smoking articles with restrictor and aerosol former |
| RU71515U1 (en) * | 2007-11-19 | 2008-03-20 | Виталий Геннадьевич Барабанов | FILTER FOR CIGARETTES |
| GB0800216D0 (en) * | 2008-01-07 | 2008-02-13 | British American Tobacco Co | Smoking article |
-
2009
- 2009-05-18 EP EP09251336A patent/EP2253231A1/en not_active Withdrawn
-
2010
- 2010-05-17 PT PT107259699T patent/PT2432338E/en unknown
- 2010-05-17 JP JP2012511187A patent/JP5710601B2/en active Active
- 2010-05-17 BR BRPI1013065-9A patent/BRPI1013065B1/en active IP Right Grant
- 2010-05-17 DK DK10725969.9T patent/DK2432338T3/en active
- 2010-05-17 MX MX2011012454A patent/MX2011012454A/en active IP Right Grant
- 2010-05-17 UA UAA201114791A patent/UA103925C2/en unknown
- 2010-05-17 TW TW099115616A patent/TWI513414B/en not_active IP Right Cessation
- 2010-05-17 EP EP10725969.9A patent/EP2432338B1/en active Active
- 2010-05-17 CN CN201080021713.6A patent/CN102427742B/en active Active
- 2010-05-17 WO PCT/EP2010/003016 patent/WO2010133334A1/en active Application Filing
- 2010-05-17 AR ARP100101713A patent/AR079391A1/en active IP Right Grant
- 2010-05-17 SG SG2011081635A patent/SG175910A1/en unknown
- 2010-05-17 RU RU2011151720/12A patent/RU2524898C2/en active
- 2010-05-17 SI SI201030713T patent/SI2432338T1/en unknown
- 2010-05-17 ES ES10725969.9T patent/ES2512017T3/en active Active
- 2010-05-17 PL PL10725969T patent/PL2432338T3/en unknown
- 2010-05-17 RS RSP20140483 patent/RS53576B1/en unknown
- 2010-05-17 MY MYPI2011005285A patent/MY154297A/en unknown
- 2010-05-17 AU AU2010251445A patent/AU2010251445B2/en not_active Ceased
- 2010-05-17 KR KR1020117030253A patent/KR20120042761A/en active Search and Examination
- 2010-05-18 US US12/782,443 patent/US20100288293A1/en not_active Abandoned
-
2011
- 2011-11-29 CO CO11163916A patent/CO6390089A2/en active IP Right Grant
-
2012
- 2012-06-15 HK HK12105855.9A patent/HK1165233A1/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3646941A (en) * | 1969-09-15 | 1972-03-07 | E A Carey Pipe Co | Cigarette and/or cigarette holder |
| US3877470A (en) * | 1974-05-02 | 1975-04-15 | Bio Gant Corp | Smoker{3 s filter device |
| GB2289612A (en) * | 1994-05-25 | 1995-11-29 | Andrew Brady | Tobacco smokers' mouthpieces |
| WO2007110650A1 (en) * | 2006-03-28 | 2007-10-04 | Philip Morris Products S.A. | Smoking article with a restrictor |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1165233A1 (en) | 2012-10-05 |
| TW201103449A (en) | 2011-02-01 |
| TWI513414B (en) | 2015-12-21 |
| PT2432338E (en) | 2014-10-03 |
| MY154297A (en) | 2015-05-29 |
| US20100288293A1 (en) | 2010-11-18 |
| DK2432338T3 (en) | 2014-09-08 |
| UA103925C2 (en) | 2013-12-10 |
| RU2011151720A (en) | 2013-06-27 |
| WO2010133334A1 (en) | 2010-11-25 |
| CN102427742A (en) | 2012-04-25 |
| AU2010251445B2 (en) | 2015-07-02 |
| EP2432338A1 (en) | 2012-03-28 |
| RU2524898C2 (en) | 2014-08-10 |
| SG175910A1 (en) | 2011-12-29 |
| AU2010251445A1 (en) | 2012-01-12 |
| CO6390089A2 (en) | 2012-02-29 |
| KR20120042761A (en) | 2012-05-03 |
| EP2253231A1 (en) | 2010-11-24 |
| JP5710601B2 (en) | 2015-04-30 |
| BRPI1013065A2 (en) | 2016-04-05 |
| AR079391A1 (en) | 2012-01-25 |
| ES2512017T3 (en) | 2014-10-23 |
| RS53576B1 (en) | 2015-02-27 |
| MX2011012454A (en) | 2011-12-16 |
| JP2012527221A (en) | 2012-11-08 |
| BRPI1013065B1 (en) | 2023-11-14 |
| PL2432338T3 (en) | 2014-12-31 |
| SI2432338T1 (en) | 2014-09-30 |
| EP2432338B1 (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102427742B (en) | Smoking article with improved flow restriction element | |
| CN100566609C (en) | Smoke filter | |
| EP2048978B1 (en) | Smoking article with single piece restrictor and chamber | |
| EP2007233B1 (en) | Smoking article with a restrictor | |
| RU2600911C2 (en) | Smoking article filter with flow restriction element and cavity | |
| WO2010063591A1 (en) | Smoking article filter | |
| JPH09117273A (en) | Disposable filter attachment for smoking goods | |
| US10219540B2 (en) | Filter components, filters, smoking articles, and related methods, all for the controlled delivery of aerosols | |
| CN104039180A (en) | Smoking article with a ventilated mouthpiece comprising first and second airflow pathways | |
| WO2017021422A1 (en) | Tobacco smoke filter | |
| KR20150102051A (en) | Smoking article including flow restrictor | |
| EP2653045A1 (en) | Smoking article including filter with flow restriction element and upstream ventilation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |