CN104244745B - Smoking product - Google Patents

Abstract

The present invention relates to include rod of smokeable material（11）With the filter tip for being connected to described bar one end（12）Smoking product（10）, the filter tip is comprising at least two sections and is wrapped in porous, shaped paper, wherein the first tipping paper（14）Cover the joint between rod of smokeable material and filter tip, and provide at least one additional tipping paper (15) around filter tip, it separates with the first tipping paper and separated so as to expose a part of porous, shaped paper between the first tipping paper and at least one additional tipping paper, and wherein tipping paper usually not forming paper is porous.But, if tipping paper is more porous than forming paper, the segmentation tipping paper still keeps its function.

Description

Smoking product

Technical field

The present invention relates to smoking product, particularly reduce special component or the machine into packet in main flume and measure yield Smoking product.

Background

Traditionally, smoking product, such as cigarette are wrapped in coil paper（paper wrapper）In tobacco or tobacco-based can The cigarette of the cylinder form of sucked material（tobacco rod）, it can be equipped with filter element.In its citation form, the mistake Filter unit is, by the cylindrical elements of filtering material, such as cellulose acetate tow formation, optionally to include changing flow of flue gas and mistake The configuration of filter function, such as groove and gap, and additive such as carbon particulate.Tow can be wrapped in a formable layer paper（plug wrap）In, it helps to maintain the cylindrical shape and structure of filtering material.Filter element uses tipping paper（tipping paper）It is joined in cigarette, tipping paper is parcel filter element and covers the joint between filter element and cigarette（join）'s External paper layer.Tipping paper is gluing in place.

Tobacco smoke is the complicated dynamic mixtures of the composition of the determination more than 5000 kinds, wherein about 150 kinds are remembered by document Carry to be undesirable.These compositions are present in the main flume of smoker's suction（MS）In and also serve as side-stream smoke（SS）Composition Discharged between suction (puff).

, Institute of Medicine in 2001（IOM）Report, because the related disease of smoking is that dosage is related And due to epidemiological study show the smoking relevant disease after giving up risk reduction, by develop it is potential lower exposure production Product (potential reduced-exposure products)（PREP）, the related risk of smoking can be reduced.They by this It is defined as：(1) product in one or more tobacco poisonous substances is significantly reduced；(2) if claiming risk reduction, It is then the product for the risk that rationally estimated can reduce one or more specified diseases or the influence of other adverse healths（Stratton etc. People, 2001）.So far, have shown to meet the general requirement of IOM general introductions without flammable cigarette product.

Therefore it provides the smoking product for showing the significantly reduced discharge for being considered as unacceptable all MS compositions is one Item challenge.But, reducing the single measure of some compositions generally reduces other compositions, even makes in some cases other The content of composition is improved.

In addition, the manufacture acceptable product of consumer is also important.The organoleptic effects of traditional smoking product are mostly based on MS composition and other factorses, such as pressure drop and suction number.It has been found that have can for some measures for reducing some MS compositions Unsatisfactory smoking experience can be brought for smoker.

Summary of the invention

According to embodiment of the present invention, there is provided include rod of smokeable material and the filter tip for being connected to described bar one end （filter）Smoking product, the filter tip is comprising at least three sections and being wrapped in porous, shaped paper, wherein the first tipping paper The joint between rod of smokeable material and filter tip is covered, and at least one additional tipping paper is provided around filter tip, it is with the One tipping paper separates and separated to expose a part of porous, shaped between the first tipping paper and at least one additional tipping paper Paper, and wherein tipping paper not as forming paper it is porous.

In some embodiments, at least one filter tip section includes fiber filter material.At least one filter tip section can Include porous absorbent material.At least one filter tip section can include ion exchange resin.

In certain embodiments, it may include the porous adsorbing material at least one filter tip section is many with engineering The porous carbon of pore structure.The filter tip section may include about 20 milligrams to about 80 milligrams of porous adsorbing material.

In certain embodiments, it may include the ion exchange resin at least one filter tip section has surface active Amine.The filter tip section may include about 5 milligrams to about 40 milligrams of ion exchange resin.

In some embodiments, the filter tip includes the mouth end section comprising fiber filter material, includes amberlite The section of fat and the section for adjoining rod of smokeable material comprising porous adsorbing material.

In some embodiments, the filter tip is longer than the filter tip in traditional cigarette, with about 30 millimeters to about 40 millimeters, preferably approximately 37 millimeters of length.

In some embodiments, the smoking product has about 83 millimeters of a total length, including filter tip and smokable Material bar.

In some embodiments, the girth of the smoking product is less than traditional cigarette, with about 21 millimeters of girth.

In some embodiments, the gap between the first tipping paper and at least one additional tipping paper is about 10 millimeters It is wide.

In some embodiments, the smoking product further comprises in tipping paper and/or in the main body of filter tip The passage of formation.

In some embodiments, the rod of smokeable material includes following one or more：

(a) pass through processing to produce the tobacco of the nitrogen-containing compound content of reduction；

(b) pass through processing to remove the tobacco of polyphenol and/or peptide；

(c) noninflammability inorganic filler, adhesive and aerogel generating agent are included（aerosol generating means） Tobacco substitute sheet material.

In addition, the smokeable material can further include thin slice tobacco（lamina tobacco）And/or dry-ice expanding cigarette Grass（DIET）.

In addition, in some embodiments, the smokeable material further includes glycerine.Additionally or alternatively, this is smokable Material includes at least one spices.

In some embodiments, the smokeable material of the smoking product comprising mixed processing tobacco, tobacco substitute sheet material, The fragrant spices of DIET, thin slice tobacco, glycerine and head（top flavour）.

Brief description

Embodiment of the present invention only is described by non-limiting examples referring now to accompanying drawing, wherein：

Fig. 1 is the schematic diagram of the smoking product according to one embodiment of the invention；

Fig. 2 is the exploded view of the internal structure of the filter tip of more detailed schematic thinking 1；

Fig. 3 is the schematic diagram of the cross sectional longitudinal view of the smoking product according to another embodiment of the present invention；

Fig. 4 shows the summary for the method for preparing highly reactive polymer derived carbon；And

Fig. 5 shows the discharge gas flow measurement of different aerating systems.

It is described in detail

The present invention relates to the smoking product designed including filter tip, the filter tip design provide enhanced aerating system with There is provided the poisonous substance improved for smoking product to reduce, while keeping Consumer acceptance.

According to some embodiments, by by the filter tip and the tobacco composition of customization and/or the adsorptivity mistake of customization Additive combination is filtered, poisonous substance reduction can be further improved.In addition, optionally new overall smoking product form can help to balance The filter tip is designed and other poisonous substances reduce the effect of measure to improve the Consumer acceptance of the smoking product.

In standard or traditional cigarette, filter tip and cigarette are by covering the whole length of filter tip and the abutting end of cigarette Tipping paper engagement.Provided that aerating system, this is intended to the hole formed in tipping paper or channel form, so as to by ring Border air intake filter mouth simultaneously dilutes MS.

In embodiments of the invention, tipping paper does not cover whole filter tip.On the contrary, tipping paper be it is separated and/or Include two or more.First tipping paper covers the joint between filter tip and rod of smokeable material, such as that will filter Mouth is engaged with the bar.At least one additional tipping paper surrounds another part of filter tip, separate and separate with the first tipping paper with Gap is formed between the first tipping paper and at least one additional tipping paper.This gap is exposed by more porous than tipping paper The filter region that material is surrounded.This causes one section of filter tip only by porous paper（Forming paper）Surround, entered with improving gas diffusion Go out the filter region.For example, gas such as CO（Carbon monoxide）And NO（Nitric oxide）It can expand from this filter region Shed filter tip.This so-called " segmentation tipping paper（split tipping）" also improve exhaust level at higher flow rates Control.

Referring now to Fig. 1 and 2, an implementation according to the present invention of the display comprising rod of smokeable material 11 and filter tip 12 The smoking product 10 of scheme.In one embodiment, rod of smokeable material 11 include smokable tobacco in the paper web or The cylinder of tobacco sill.

Rod of smokeable material 11 is engaged on filter tip 12.In the illustrated embodiment, placement the first tipping paper 14 with Cover the joint between rod of smokeable material 11 and filter tip.This tipping paper 14 helps bar 11 engaging filter tip 12 On.Additional tipping paper 15 surrounds filter tip at the mouth end 13 of filter tip.Tipping paper 14,15 is spaced and separated with them Between provide gap 16.This gap 16 is the filter tip section not surrounded by tipping paper.In the illustrated embodiment, at gap 16 The porous, shaped paper bag that is exposed of this section of filter tip enclose.

Illustrate the structure of filter tip 12 in more detail in Fig. 2 exploded view.The filter tip includes the filter tip of three separation Section 21a, 21b, 21c.Each filter tip section 21a, 21b, 21c is preferably different.In order that each filter tip section 21a, 21b, Structure needed for 21c is kept, they optionally can be wrapped in independent interior forming paper 22a, 22b, 22c independently of one another.

Once being head to head installed together, these three filter tip section 21a, 21b, 21c for independently wrapping up then use individual Outer forming paper 23 is bundled together, and this combines them into single unit.Outer forming paper 23 is made of porous materials, and independent At least some in interior forming paper 22a, 22b, 22c can also be porous.

By wrapping up cigarette 11 and filter tip 12 so that its first tipping paper 14 for covering the joint between them will filtering Mouth 12 is joined in cigarette 11.The tipping paper is gluing in place.

Second single tipping paper 15 wrap up away from cigarette 11 filter tip 12 mouth end 13 and with the first tipping paper 14 Separate with leaving gap 16 between them.Exposure goes out forming paper 23 to delimit out the filtering of smoking product 10 in gap 16 Ventilating zone in mouth section.The porosity of this section of filter tip depends on the outer forming paper 23 of filter tip surrounded in the region and any The porosity of interior forming paper.Tipping paper is preferred to be provided with surrounding the filter tip section being aligned with the gap 16 between tipping paper 14,15 Paper porosity compare with compared with low porosity region.

In fig 1 and 2 in shown embodiment of the present invention, filter tip 12 is described as comprising three segregation section 21a, 21b, 21c.But, it will be recognized that more than three filter tip section can be provided within the scope of the invention.In addition, nothing of the present invention Meaning is limited to each filter tip section 21a, 21b, 21c are wrapped in the independent forming paper 22a of their own, 22b, 22c first, But can use outer forming paper 23 that all filter tip sections are fixed together, and can be cylinder in their preferred form 's.

In fig. 2 in shown embodiment, three filter tip sections 21a, 21b, 21c size.In shown reality Apply in scheme, mouth end section 21c is shorter than interlude 21b, and the latter is again shorter than adjoining the section 21a of rod of smokeable material.In a tool In body embodiment, mouth end section 21c is 7 millimeters long, and interlude 21b is 10 millimeters long, and adjoins the section of rod of smokeable material 21a is 20 millimeters long.

Cut out point by size and dispose the first and second tipping papers 14,15 to adjoin the section of rod of smokeable material to expose A 21a part.The tipping paper 14 of second tipping paper 15 to the first at the mouth end of filter tip is wide.Shown specific implementation in fig. 2 In scheme, the first tipping paper covers the region of 11 mm wides --- the end of covering rod of smokeable material and a part of contiguous filter Mouth section 21a.Specifically, the first tipping paper 14 can cover 5 millimeters of rod of smokeable material and 6 millimeters of contiguous filter mouth section 21a.Gap in shown embodiment between the first tipping paper 14 and the second tipping paper 15 is 10 millimeters.It is still shown in fig. 2 Embodiment in, the second tipping paper covering filter tip 12 the mm wide of mouth end 21 region --- covering whole mouth end filter tip Section 21c, whole central filter section 21b and a part（4 millimeters）Adjoin the filter tip section 21a of rod of smokeable material.Therefore, One and the second gap 16 between tipping paper 14,15 be directed at the filter tip section 22a for adjoining rod of smokeable material 11 part.

Variation can be made to above-mentioned smoking product 10 within the scope of the invention.For example, encirclement filter tip can be provided And/or the tipping paper of the more than two separation of rod of smokeable material, it is possible to them are disposed to provide two or more gaps. The size of the wrapping paper（Width）It is variable to provide the gap that width is different and position is different with their position.In addition, filtering The quantity and size of mouth section are also variable.

Fig. 3 shows the another embodiment of smoking product, and wherein filter tip 112 further comprises passage 131.Smoking system Product 110 include with the identical part of smoking product 10 shown in Fig. 2, simply it include passage 131.

The purpose of passage is to allow air into filter tip when smoker aspirates the smoking product.Air is with being drawn through The main flume and other compositions of the smokeable material for carrying out spontaneous combustion of filter tip mix and dilute them.There are a series of skills at present Art is used to manufacture passage.Tipping paper can be before parcel with machinery or electrostatic perforating device or pre-perforated with laser beam.Or, Online or on-line system laser beam manufacturing hole can be used after smoking product assembling.In latter case, swash by focusing on Hole is ablated in filter tip by light beam, and therefore penetrates the paper of parcel filter tip（Tipping paper and forming paper）And penetrate in filter tip Material in.

Position of the hole along filter length can change filtering and dilution effect, particularly if control multi-section filter Each part sets this some holes.In the smoking product with above-mentioned " segmentation tipping paper ", it has been found that this segmentation tipping paper changes The exhaust level control entered under high flow velocities.

Describe the discharge gas flow measurement using three kinds of different aerating systems in Fig. 5.Curve A shows the data of tested cigarette, Wherein whole filter tip ventilation is produced by segmentation tipping paper, there are 20 millimeters of separation gaps.Curve B, which is shown on filter tip, to be had Online laser（OML）The data of the commercial control cigarette of ventilation.Curve C shows the data of tested cigarette, a portion ventilation By segmentation tipping paper（With 10 millimeters of gaps）Produce, a part is produced by filter tip Zhong OML areas.

Under the conditions of ISO machine drawns, i.e., in 17.5 cubic centimetres/second（Or 1.050 liters/min）Process cigarette it is flat Under equal ISO inspiratory flow rates, as relative to total aspiration through the passage leaked-in air percentage or warp on cigarette filter The average discharge measurement filter tip aeration of cigarette suction.Tar of the ventilation levels influence from the product, the Ni Gu realized The ISO yield of fourth and CO.When consumer's smoking, compared with ISO, they may draw bigger aspiration and/or with higher Process cigarette flow velocity air-breathing.Therefore, consumer may take in the yield more than ISO machine smoking values from traditional cigarette； One of the reason for this output increased is effective " filter tip ventilation " reduction under the gettering rate higher than ISO（As in Fig. 5 Curve B shown in）.

On the contrary, by " segmentation tipping paper " aerating system（There is no additional gas communication hole）, brought up to when by the flow velocity of cigarette During higher than ISO flow velocitys, " effective ventilation " will not be down to the expected degree in traditional product.In fact, by " segmentation tipping paper " The flow vs pressure drop relationships in region are almost linear, so that as the flow in cigarette is improved, by the stream of " segmentation tipping paper " Amount is almost improved with same ratio.Therefore, in more depth smoking, the loss of " effective ventilation " is extremely low（The curve A seen in Fig. 5）.

It should be apparent to those skilled in the art that segmentation tipping paper just effectively influences to come only when ventilating zone is unplugged From people or the yield of machine smoking.This means aspirated using Health Canada depth（Machine）Pattern（ Intense smoking (machine) regime）When segmentation tipping paper it is invalid.

Due to being difficult to the definite ventilation levels that prediction can alone be realized by segmentation tipping paper, manufacture some test specimens and make With ISO yield needed for online laser " fine tuning " sample filtering mouth throughput and realization（Curve C for example for generating Fig. 5）.Such as Find out in this curve, during using joint aerating system, the effect for being segmented tipping paper is obvious.

In figure 3 in shown embodiment, passage 131 surrounds the peripheral annular of filter tip 112（annually）Cloth Put, by focusing on laser beam（Online laser）Ablation.This some holes passes through tipping paper 115, through the forming paper 123 of lower section and any Forming paper in optionally（Do not show）And short distance is extended in filter tip main body.

Passage can embark on journey around the circumference of filter tip or into region arrangement, the milli of mouth end about 11 to 16 away from filter tip Rice.In shown specific embodiment, the mouth end 113 with filter tip 112 is at a distance of 13 millimeters of offer passages 131.This meaning Passage 131 to be aligned with central filter section 121b.

The passage being made up of laser generally has about 1 to 2 millimeter of depth, although they may be further extended into In filter tip main body, the depth with more than 2 millimeters, such as 2 to 3.5 millimeters of depth and/or at least the 25% of filter diameter Or the even depth of the 25 to 50% of filter diameter.In some embodiments, the smoking product runs through comprising at least one and connect Fill the passage that paper and any forming paper enter in filter tip.The hole may extend to certain depth so that the sky sucked through passage Gas enters the central area of filter tip.Or, one or more holes can be provided and arrange to control diluent air by filtering The path of mouth.For example, hole can have different depth or can be aligned with the predetermined portions of filter tip.

Traditional cigarette generally includes cellulose acetate（CA）Tow is used as filtering material.Cellulose acetate leads to common plasticizers Processing, plasticizer bonds adjacent fiber in the contact point of adjacent fiber, to assign the intensity and structural integrity of fibre bundle raising Property.Include glyceryl triacetate suitable for the plasticizer of this purposes（Glyceryl triacetate）、TEC（Triethyl citrate）With PEG 400（It is low Molecular weight polyethylene glycol）.The cellulose acetate tow of plasticising is it is also known that improve the semi-volatile compounds found in smog（For example Phenol, orthoresol, paracresol and metacresol）Selective removal.In some embodiments of the present invention, at least one filter tip Section includes cellulose acetate.In some embodiments, mouth end filter tip section（Filter tip section 21c is shown as in Fig. 1）Comprising Or it is basic by cellulose acetate tow, the cellulose acetate tow being preferably plasticized is constituted.

Although fiber filter material can reduce particulate phase constituents together with tar and nicotine, hardly occurs selectivity Reduce.Further, since cellulose acetate filter material is not acted on nearly or completely volatile ingredient, filter efficiency meeting is improved Improve ratio of their yield relative to tar and nicotine.But, the presence of cellulose acetate filter mouth section can improve this The Consumer acceptance of the smoking product of invention, it is especially true when cellulose acetate filter mouth section is located at the mouth end of filter tip.

For the characterization of adsorption of the filter tip that further enhances smoking product, porous adsorbent can be included with from mainstream smoke Some volatile ingredients are removed in gas.Activated carbon（AC）It is widely used in cigarette filter and can be substantially reduced by physical absorption The non-selective adsorption agent of a large family volatility smoke composition.

The characterization of adsorption of porous carbon can be strengthened by designing the porous surface of carbon, to provide so-called " high activity charcoal " （HAC）.Therefore, in some embodiments of the present invention, at least one section of filter tip includes high activity charcoal.

High activity charcoal can be incorporated in the filter tip section of smoking product in the cavities, or is spread（" Dalmatian " type） Filtering material（Such as cellulose acetate）In rod.In some embodiments, high activity charcoal can be applied to the filter tip section （It is interior）On the inner surface of forming paper, thus between forming paper and plug of filtration material.

In some embodiments, the filter tip section of rod of smokeable material is adjoined（Section 21a is shown as in Fig. 1）Comprising High activity charcoal.In some embodiments, 20 to 80 milligrams, preferably approximately 50 milligrams of high activity are loaded in filter tip section Charcoal.

The high activity charcoal can be derived from polymer.For example, it can be the porous carbon pearl material of derivative self-polystyrene Material.

A kind of possible type for the high activity charcoal that can be used in the smoking product of the present invention includes passing through proprietary method （Von Bl ü cher and De Ruiter 2004；Von Bl ü cher et al. 2006；B hringer and Fichtner 2008）System The substantially spherical particle of polymer derived carbon standby and available from Bl ü cher GmbH (Germany).

High activity charcoal particle derived from these polymer has the carbon for being typically derived from coconut husk with being commonly used in commercial cigarette Different pore structures.Therefore it has excellent characterization of adsorption to a series of volatility smog poisonous substances.The polymer derived carbon All showed well to routine and compared with the cigarette of small circumference under ISO and HCI suction modes, although under high flow velocities puffing regimenses Some limitations are observed in acetaldehyde removal.

The method for preparing polymer derived carbon is depicted in Fig. 4.Use the rotary kiln of batch process indirectly heat Manufacture activated carbon derived from polymer in an inert atmosphere under reduced pressure.After spherical polymer raw material is prepared, excessive hair is used The thermally-stabilised material of cigarette sulfuric acid.Then, the material is slowly heated to 500 °C, so that mainly discharging SO₂And H₂O simultaneously makes the polymerization Thing is carbonized.Gained carbon has the inaccessible initial pore system of typical absorbate.In order to manufacture the pore system for being adapted to absorption, The material is further heated to about 900 to 1000 °C with oxidant（Steam）Activation.It is mainly 0.7 by aperture that this, which sets up, The pore system constituted to 3 nanometers of micropores.Then use CO₂Activation results in bigger 3 to 80 nanometers mesoporous mostly.Steam Vapour and CO₂The combination of activation step provides the flexible policy of pore characteristic needed for being used to realize.

The polymer derived carbon --- it is synthetic material --- is with sharp outline much spherical and more homogeneous Granularity.Compared with raw material of the natural coconut husk as carbonizatin method, the polymer derived material has compared with low-density and with relatively low Content of ashes, this reflects the synthesising property of the polymer raw material.

Polymer derived carbon most of smoke compositions of absorption more more effective than activation coconut husk charcoal under ISO patterns, for except first Aldehyde, acetaldehyde, hydrogen cyanide（HCN）And toluene（Reduce 50-60%）Outer smoke composition, it was observed that about 80-95% reduction. Under the conditions of HCI, the cigarette containing traditional coconut husk charcoal is to acetaldehyde（16%）Most of smoke compositions in addition provide subtracting for about 25-45% It is few.Cigarette including polymer derived carbon is by acetaldehyde and HCN（15-30%）Outer most of smoke composition yield reduction 60-90%.

Chemisorbed can also remove poisonous substance, including high volatile aldehyde and HCN from main flume.Amine-functionalized resin is provided Nucleophilic captures the potentiality of aldehyde from main flume, and due to its alkalescent, it can also be used for removing HCN from main flume.

Therefore, in some embodiments of the present invention, at least one section of filter tip includes ion exchange resin.Should Ion exchange resin has the surface active amine that can effectively combine selected gas phase aldehyde composition and hydrogen cyanide.

The amine-functionalized resin material can be incorporated in the filter tip section of smoking product in the cavities, or is spread （" Dalmatian " type）In filtering material（Such as cellulose acetate）In rod.In some embodiments, can be by amine-functionalized tree Fat is applied to the filter tip section（It is interior）On the inner surface of forming paper, thus between forming paper and plug of filtration material.

In a possible arrangement, the amine official of 5 to 40 milligrams, preferably approximately 20 milligrams of loading in central filter section Resin can be changed.

DIAION CR20 are the amine-functionalized ion-exchange resin beads of commercially available type（Mitsubishi Chemical Corporation is manufactured）.There is polyamine group to match somebody with somebody as the chelating being bonded in highly porous crosslinked polystyrene matrix for it Body.CR20 shows big affinity to transition metal ions.The definite class of amido produced by functionalization can not accurately be controlled Type and several different types are there may be on resin.

Commerical grade CR20（Hereinafter referred to as CR20C）Distinctive stink is found to have, this is when being incorporated in cigarette and traditional The acceptable cigarette smoke characteristic of consumer is incompatible.But, modifications of the Mitsubishi to synthesis condition significantly reduces this The intensity of stink, to produce " low smelly " level CR20（Hereinafter referred to as CR20L）.Herein, unless otherwise specified, acquisition is all As a result CR20L is all related to.This material has 600 millimeters of bead size, 0.64 gram/cc of density, 15 weight % Water content and 0.92 meq/cm³Total exchange capacity.Mitsubishi Chemical Corporation manufactured it is various its The CR20 of its type, including CR20D and CR20HD, these are applied to smoking product.

Some CR20 beads are provided in water, in order that they are applied to cigarette filter purposes, it may be necessary to remove extremely Some few water.In some embodiments, water is removed and by the material drying to about 15% or more low moisture.In other realities Apply in scheme, higher moisture content is also subjected in the filter tip of smoking product.

CR20, especially including CR20L, in the filter tip for the smoking product that may be incorporated into the present invention.With the mistake containing conventional carbon Filter tip is compared, and CR20L provides the excellent reduction of HCN, formaldehyde and acetaldehyde.

In some embodiments of the present invention, the smoking product is based on format.This is in order to suitable on partial extent Should be according to the longer filter tips of some embodiments as described herein.For example, in some embodiments, the smoking product is included Three or more filter tip sections, total length is about 37 millimeters, is hinged with paper length（I.e. from the mouth end of smoking product to tipping paper Distal-most edge distance）For 42 millimeters.Traditional draws money on credit（king size）Cigarette generally has 15 to 27 millimeters of filter tips. The extending length of filter tip of some smoking products of the present invention brings double effect --- due to smog in filter tip compared with Long residence time and improve Smoke Filter and have less smokeable material due to the smokeable material pole length of reduction for combustion Burn.

In some embodiments, filter tip has at least 30 millimeters, 31 millimeters, 32 millimeters, 33 millimeters, 34 millimeters or extremely Few 35 millimeters length.Besides or furthermore, filter tip can have no more than 50 millimeters, 49 millimeters, 48 millimeters, 47 millimeters, 46 millis Rice, 45 millimeters, 44 millimeters, 43 millimeters, 42 millimeters, the length of 41 millimeters or no more than 40 millimeters.

To balance this reduction of smokeable material pole length, deflagration wrapping paper can be used to wrap up（circumscribe） Rod of smokeable material.This can make smoker obtain the suction with every smoking product of rod of smokeable material identical of conventional lengths Number.

In other embodiments, the smoking product can be identical with the rod of smokeable material in traditional cigarette with length Or similar rod of smokeable material.This makes the smoking product longer than traditional cigarette due to longer filter tip.

In some embodiments, the smoking product " is drawn money on credit with 24.6 millimeters of standard（king size）" girth compares With 21 millimeters of so-called " demi slim " girths.The smoking product can have 83 millimeters of standard " draw money on credit " length（Including can Sucked material bar and filter tip）.

, can be with addition to reduction except the modification made to the filter tip of smoking product to improve poisonous substance present in main flume Using other technologies related to smokeable material, to supplement the effect of the filter tip and balance them on demand.

Treated tobacco composition is described herein, it from tobacco by that can remove protein and polyphenol Method processing --- there is beneficial effect to smog poisonous substance yield.Can be in the sootiness cut（flue-curedtobacco）'s Tobacco processing is carried out on tobacco.In short, imposing water extraction step to the tobacco composition, extract then passes through two benches mistake Filter to remove polyphenol and suitable peptide.Remain solid tobacco to remove insoluble protein with Protease Treatment.In washing and enzyme After inactivation, solid tobacco and filtered water extract in conjunction with.The facture, which is produced, is herein referred to as mixed processing cigarette Grass（BTT）Material, it causes the smog yield reduction of phenols, arylamine, HCN and many other nitrogenous smoke compositions；But, first The yield of aldehyde and isoprene is also improved.The mixed processing tobacco keeps the structure of original tobacco and can use traditional cigarette system Manufacturing apparatus is incorporated in the rod of smokeable material included in smoking product, without being reconstructed into sheet material.

In some embodiments of the present invention, the smokeable material includes mixed processing tobacco.

The tobacco that the tobacco-containing material to be extracted can be strip, cut, shred or grind.In some embodiments, should Tobacco is the tobacco of chopping.It is however possible to use method described herein extracts the tobacco of other forms.

The tobacco-containing material can be mixed with extractant to form slurry.Solvent can be with 10:1 to 50:1, preferably 20: 1 to 40:1, most preferably 25:1 to 30:1 weight ratio is added in tobacco-containing material.In one embodiment, solvent is with 27:1 Weight ratio be added in tobacco-containing material.

The solvent can be organic solution, but the preferably aqueous solution or water.In extraction process at the beginning, the solvent is usual It is water, but it can also contain alcohol, such as ethanol or methanol, or it can contain surfactant.The spy according to extract from tobacco Determine composition, other solvents can be used.

The extraction can be carried out at about 15-85 DEG C, be carried out preferably at about 65 DEG C.It is preferred that in extraction process not It is disconnected to stir the slurry, so that tobacco keeps suspending.Extraction should be carried out 15 minutes to 2 hours.In a preferred embodiment, extract Take progress about 20 minutes.

In extraction process, solvable tobacco ingredient is removed from tobacco-containing material and enters solution.These include nicotine, Sugar, some protein, amino acid, pectin, polyphenol and spices.At most about the 55% of initial tobacco weight may dissolving.Important It is that the pectin in baccy fiber keeps being crosslinked to keep the fibre structure of tobacco in the extraction and the whole of facture.Correspondingly, It can be neutralized to the solvent for extracted tobacco in any solution used in downstream procedure and add calcium.

After the extraction, the slurry draining can be collected filtrate（" mother liquor（mother filtrate）”）.Meanwhile, can So that insoluble tobacco residue is further extracted by countercurrent washing when it is transmitted, with removed from tobacco it is as much as possible can Melt into point.

Fresh solvent can be applied to tobacco and collect filtrate（" washing filtrate "）.The washing filtrate can be by point upstream It is applied on the input tobacco residue advanced on a moving belt and recycles.The collection and upstream for washing filtrate are re-applied to defeated Entering can be repeated many times on tobacco residue, preferably three times, four times or even five times.Thus, finally washing for collection is being taken the lead Washing filtrate may be enriched with those solvable tobacco components that it passes through filter length and has been removed from tobacco residue.Finally Washing filtrate can form the tobacco pulp for preparing to extract by being added in fresh tobacco further recycling.For example, finally washing Washing filtrate can be added in tobacco mixing channel, form tobacco pulp before extraction herein.Therefore the extraction can be continuity method, its The middle washing filtrate extracting fresh tobacco using recycling.Only fresh solvent extracted tobacco is started with this extraction process. Once extraction process starts, without using fresh solvent in the extraction, the solvent is only made up of the washing filtrate recycled.

As extraction process continues, therefore extract becomes more to be enriched with solvable tobacco component.These compositions are included in extraction Just extracted in groove（Form mother liquor）During enter those and the reextraction on horizontal belt filter of solution（Formation is washed Wash filtrate）During enter solution those.

Final filtrate is therefore comprising mother liquor and washing filtrate.Thus, the tobacco residue obtained after filtering, which is not contained in, to be used for Those solvable compositions in the solvent of extraction.Stripped tobacco can be extruded at the end of filtering therefrom to remove any excess Liquid.Come from the stripped tobacco of horizontal belt filter therefore typically dehydrated mat form.

Final filtrate can then be processed（Hereinafter referred to as tobacco extraction liquid）Do not needed with removing in final tobacco product Those compositions.Unwanted composition includes protein, polypeptide, amino acid, polyphenol, nitrate, amine, nitrosamine and pigment chemical combination Thing.But, it is considered as the composition needed, the content of such as sugar and nicotine is remained unaffected so that the local flavor of stripped tobacco It is suitable with those of original material with suction property.

In a preferred embodiment, tobacco extraction liquid is handled to remove protein, polypeptide and/or amino acid.Can be with Using insoluble adsorbent, the native mineral of such as hydroxyapatite or Fuller, such as attapulgite or bentonite remove original tobacco-containing material In contained most 60% protein.It is preferred that with the bentonite in treatment tobacco extraction liquid therefrom to remove polypeptide.Bentonite can be with It is added to the 2-4% of the tobacco weight initially extracted amount in the extract.Or, tobacco extraction liquid feeding can be contained In the groove for having slurry of the bentonite in water.Suitable slurry contains about 7 kilograms of bentonites in about 64 kilograms of water（Often The amount of hour）, such as 7.13 kilograms of bentonites in 64.18 kilograms of water（Amount hourly）.Under any circumstance, bentonite Concentration is sufficiently high substantially to reduce the protein content of the tobacco extraction liquid, but not high to therefrom other adsorptive nicotine. Bentonite in treatment also can effectively remove pigment compound present in tobacco extraction liquid, if they are not removed, it is intended to make dense Extract after contracting is dimmed.In use enough bentonite in treatment extract, the pigment compound amount of reduction can be produced outside Seeing will not excessive dimmed product.

After bentonite in treatment, tobacco extraction liquid can be purified from the slurry by centrifuging and/or filtering.In addition or or Person, can handle the tobacco extraction liquid therefrom to remove polyphenol.

Polyvinyl polypyrrole alkanone（PVPP）The insoluble adsorbent of polyphenol, its be conventionally used to brewery industry with from Polyphenol is removed in beer.PVPP can be added in the extract with the 5-10% of the tobacco weight initially extracted amount.This amount PVPP can remove in solution 50 to 90% polyphenol.The Optimal pH of polyphenol is removed from tobacco extraction liquid by PVPP it is believed that It is about 3.Therefore, by the suitable acid of addition, such as hydrochloric acid can improve PVPP absorption effect to reduce the pH of the extract Rate.

As using PVPP adsorbing polyphenols alternative solution, one or more enzymes can be added in tobacco extraction liquid with Degrade polyphenol therein.Suitable enzyme is laccase（Urushiol oxidase（urishiol oxidase）.But, the invention is not restricted to The method that protein and/or polyphenol are only removed from tobacco.Can use replacement or additional enzyme, reagent or adsorbent from this Other unwanted tobacco components are removed in tobacco extraction liquid.The other unwanted tobacco components that can be removed from the extract Example include nitrate, amine and nitrosamine.

If to remove Multiple components from the tobacco extraction liquid, can be installed in series many grooves, each self-contained different Enzyme, reagent or adsorbent are to remove the selected set of unwanted composition.Or, single groove can contain a variety of enzymes, reagent or suction Attached dose in single step to remove unwanted composition.For example, bentonite or PVPP storage tanks can comprising one or more additional enzymes, Reagent or adsorbent remove one or more other unwanted compositions not only to remove protein or phenol from tobacco, also.

In processing tobacco extraction liquid with remove it is selected do not need after composition, the extract is preferably concentrated into 20 to 50 weights Measure % solid concentration.The concentration of most 10% solid contents is most effectively attained using counter-infiltration.Can be by downward film evaporator Further it is concentrated into about 40% solid content.Other method for concentration can be used and it is well known by persons skilled in the art.This is dense Contracting tobacco extraction liquid can then with stripped tobacco in conjunction with.

But, the tobacco extracted in aqueous as already identified above preferably with concentration tobacco extraction liquid in conjunction with advance One step extracts to remove one or more other unwanted compositions.The enzyme being specifically chosen to remove selected composition can be used to enter The further extraction of row tobacco.In a preferred embodiment, the enzyme is the albumen water for removing protein from tobacco Solve enzyme.The enzyme is preferably bacterium or fungal enzyme, the enzyme more preferably commercially used in food and detergent industry.The enzyme may be selected from Savinase^TM、Neutrase^TM、Enzobake^TMAnd Alcalase^TM, they are all available from Novozymes A/S.The albumen water Solution enzyme is preferably added in tobacco with 0.1 to 5 weight % of tobacco-containing material amount.For example, Savinase^TMCan be with about 1 weight Amount % amount is added in tobacco.Tobacco can in the solution of selected enzyme repulping.The slurry reclaimed water and the ratio of tobacco should For by weight 10:1 to 50:1, preferably 20:1 to 40:1, most preferably 25:1 to 30:1.In a particularly preferred embodiment In, the weight ratio of water and tobacco is 27:1.

The pH of the tobacco/enzymatic mixture should promote optimal enzymatic activity.Correspondingly, dehydration tobacco pad is fed into groove, This is for example by adding alkali, such as sodium hydroxide regulation pH, and this is proved to be convenient.The tobacco that the pH was adjusted can be subsequently fed Into enzyme measuring tank to be mixed with selected enzyme.Tobacco/the enzymatic mixture can be subsequently fed in plug flow reactor, carried out herein Enzyme is extracted.Enzyme extraction should be carried out at a temperature of optimal enzymatic activity is promoted.Preferably, narrow temperature scope, such as 30-40 DEG C should be used To avoid making the enzyme denaturation.Work as Savinase^TMWhen being selected enzyme, optimum operation condition is 57 DEG C and pH 9-11.Enzyme extraction should Carry out at least 45 minutes；The shorter duration is it is believed that be insufficient to allow proteolytic degradation tobacco protein.

Certainly, if to remove Multiple components from tobacco, multiple enzyme extraction can be carried out.These progress that can connect, Or a variety of enzymes can be added in tobacco in single process step.

The enzyme is remained in the first extraction step that can be included in the facture, and non-formation subsequent extraction respectively Step.

After enzyme extraction, salting liquid can be used, preferably sodium chloride solution washs insoluble tobacco residue to wash enzyme off.Can To carry out salt flushing in continuous flow upstream mode.

But, salt and water flushing may be not enough to remove all enzymes from tobacco.Washed tobacco can also be handled so that Any residual enzyme inactivation stayed in after Yan Heshui flushings in tobacco.This can be by abundant steam treatment tobacco so that enzyme is inactivated Carry out, but not tobacco is lost its fibers form.In one embodiment, steam treatment is carried out about at about 98 DEG C 4 minutes, but if needing, the residence time can increase to about 10 minutes.Or, tobacco can be heat-treated so that enzyme inactivate, For example pass through microwave treatment or baking tobacco.In another embodiment, it can inactivate enzyme by chemical modification；But step should be taken Suddenly chemicals is removed from tobacco.

Finished tobacco can then with concentration tobacco extraction liquid in conjunction with.Treated extract is added back and extracted Tobacco in ensure that the water soluble flavours component and nicotine of tobacco are stayed in the final product.In conjunction with therefore produce have with The similar physical form of original material and outward appearance, taste and suction property but with protein, the polyphenol or other substantially reduced The tobacco product of the content of selected composition.Can by tobacco extraction liquid is sprayed onto on tobacco realize in conjunction with.With finished cigarette Grass in conjunction with the amount of original extract depend on the amount lost in the extract processing procedure for removing selected composition simultaneously Become with tobacco type.

With treated tobacco extraction liquid in conjunction with before, among or afterwards, can use standard seasoning will handle The Tobacco drying crossed.The initial moisture content of treated tobacco is typically about 70-80%.In a preferred embodiment, do Moisture content after dry should be from about 14%.Heating drier, such as curtain drying machine can be used（apron dryer）By in tobacco Initial moisture content be down to about 30%.Then second heating drier can be used, moisture content is entered one by such as dried-air drier Step back down to about 14%.

Final dry products can be subsequently processed into final product form, such as sheet material, and it constitutes all or part of volume in chopping Cigarette filler.But, due to therefrom removing up to 30% tobacco primitive component in extraction and processing procedure, with original material phase Than the residual components concentration of per unit weight tobacco is improved in final products.These compositions include cellulose, itself and sugar and starch Harmful volatile material, such as acetaldehyde and formaldehyde may be produced in smog in burning together.

The another method of reduction smog poisonous substance yield is to dilute smog with glycerine, and it is sweet that this can include vast scale by formation Oil, such as so-called " the tobacco substitute sheet material " of most 60 weight % glycerine（TSS）Carry out.Carrying out comfortable smokeable material includes this The analysis shows of the main flume of the TSS of sample cigarette are in addition to some volatile species, the yield reduction of most of measurement compositions.

In some embodiments of the present invention, the smokeable material includes tobacco substitute sheet material.

Tobacco substitute sheet material（TSS）The amount of tobacco reduced in tobacco composition in cigarette is incorporated to, thus further reduction Cigarette generates the overall potentiality of poisonous substance.In heating, the glycerine included in TSS is discharged into smog stream, is included in as ancient without Buddhist nun Fourth applied to dry particulate matter（NFDPM, also referred to as " tar "）In the particulate smog total amount of measurement.Because most of cigarette are designed to symbol Specific NFDPM yield values are closed, glycerine is incorporated in smog stream effectively contribution of the reduction tobacco combustion products to total NFDPM values：This One process is referred to as " dilution ".TSS, which is incorporated to, causes the smoke composition of a large family in smoking product, including particle phase and gas phase poison The reduction of thing.External toxicological test shows that the activity of smoke particles is proportionally reduced with their glycerol content.Pass through filtering Device is studied（filter studies）Human body nicotine exposure reduction average 18% is measured, twenty-four-hour urine biomarker point is used Analysis measures reduction by 14%.Smoke particles reduce average 29% in filter research, based on urine 4- (Methylnitrosamino) -1- (3- pyridine radicals)-n-butyl alcohol concentration reduces similar amount.These results show that using tobacco substitute sheet material some smog can be realized The exposure of the reduction of poisonous substance.

In some embodiments, the smoking product includes including noninflammability inorganic filler, adhesive（For example alginic acid is bonded Agent）With the tobacco substitute sheet material of aerogel generating agent.

Advantageously, the tobacco substitute sheet material is led comprising noninflammability inorganic filler, adhesive and aerogel generating agent as it Component is wanted, these three components preferably account at least 85 weight % of tobacco substitute sheet material together, preferably greater than 90%, even more preferably altogether About 94 weight % for tobacco substitute sheet material or more.These three components even can be the 100% of tobacco substitute sheet material.Remaining Component is preferably the one or more in such as colouring agent, fiber such as wood pulp or spices.Other accessory constituent materials are technology people Member is known.Therefore the tobacco substitute sheet material is very simple sheet material for its composition.

Term " tobacco substitute sheet material " used herein refers to the material that can be used in smoking product.It is not necessarily mean that The material itself have to can maintain burning.Tobacco substitute sheet material is generally manufactured in the form of a sheet, is then cut.Tobacco substitute sheet material Then it can mix to manufacture smokable filler with other materials.

In some embodiments, the smokable filler bar that smoking product is wrapped, the smokable filler by containing The mixture for having the tobacco substitute sheet material comprising noninflammability inorganic filler, alginic binder and aerogel generating agent is constituted, the suction Tobacco product has the aerosol transfer efficiency ratio more than 4.0.Aerosol transfer efficiency used herein is molten as the gas in smog Aerosol percentage in glue percentage divided by smokable filler is measured.Aerosol transfer efficiency is preferably greater than 5, more preferably greater than 6。

Smokeable material used can include the tobacco substitute sheet material by being not more than 75 weight % in the smoking product of the present invention The mixture of composition.

Inorganic filler preferably exists with 60-90%, more preferably final sheet material be more than 70%.Advantageously, the inorganic filler Exist with about 78 weight % of final sheet material, but may be deposited with higher amount, such as 80%, 85% or 90 weight % of final sheet material .

In some embodiments, the noninflammability filler advantageously has 500 microns to 75 microns comprising a certain proportion of, Or 400 microns to 100 microns of particle mean size, the material of particle mean size more than 125 microns or more than 150 microns.At some In the case of, particle mean size can be advantageously about 170 microns, or 170 microns to 200 microns.This granularity is different from tradition The granularity of the upper food grade inorganic filler being used in alternative tobacco product, i.e., about 2-3 microns of granularity.Each inorganic is filled out The particle size range that material is observed can independently be 1 micron -1 millimeter（1000 microns）.The inorganic filler can grind, mill or Precipitate into required granularity.

The inorganic filler can be pearlite, aluminum oxide, diatomite, calcium carbonate（Chalk）, vermiculite, magnesia, magnesium sulfate, Zinc oxide, calcium sulfate（Gypsum）, iron oxide, float stone, titanium dioxide, calcium aluminate or other insoluble aluminates or other inorganic fill out One or more in material.The density range of the material can be 0.1 to 5.7 gram/cc.In some embodiments, The inorganic filler has less than 3 grams/cc, less than 2.5 grams/cc, less than 2.0 grams/cc or less than 1.5 Gram/cc density.The inorganic filler that density is less than 1 gram/cc may be desirable.Inorganic filler compared with low-density is dropped The density of low product, thus improves ash characteristics.

If using the combination of inorganic filler, one or more fillers can suitably have small grain size, and another filler can There can be bigger granularity, the ratio of each filler is adapted for carrying out required particle mean size.Can in smokable filler using tobacco and The appropriate mixture of tobacco substitute sheet material realizes the static burn rate needed for final smoking product.

In some embodiments, the inorganic filler is not in agglomerated form.The inorganic filler is removing possible chi using preceding Very little classification is outer with little need for pretreatment.Adhesive can be with the by weight about 5-13% of final filler, less than 10% or small Exist in 8%.Adhesive can be the about 7.5 weight % or less of final sheet material.If adhesive is alginates and non-alginic acid The mixture of salt adhesive, the adhesive can include at least 50% alginates, at least 60% alginates or at least 70% alginates. During using non-alginate binder, required adhesive total amount can be reduced suitably.With the reduction of adhesive total amount, adhesive group The amount of alginates is advantageously improved in conjunction.Suitable alginic binder includes solvable alginates, such as ammonium alginate, mosanom, alginic acid Sodium calcium, calcium alginate ammonium, potassium alginate, alginic acid magnesium, triethanolamine alginate and propylene glycol alginate.Other organic bonds, it is such as fine The plain adhesive of dimension, natural gum or gel can also be used in combination with alginic binder.Suitable cellulosic binders include cellulose And cellulose derivative, such as sodium carboxymethylcellulose, methylcellulose, hydroxypropyl cellulose, hydroxyethyl cellulose or cellulose Ether.Suitable natural gum includes gum arabic, ghatti gum, bassora gum, karaya, locust bean gum, acacia gum, melon That glue, quince seed glue（quince seed）Or xanthans.Suitable gel includes agar, agarose, carragheen （canageenans）, furoidan and furcellaran.Starch can also be used as organic bond.Refer to Industrial Gums, E. Whistler (Academic Press) etc handbook selects other suitable natural gum.Alginic binder is very It is preferred that accounting for the major part of adhesive.Due to their neutral taste features in burning, alginates be in the present invention preferably.

In some embodiments, aerogel generating agent exists with 5-20%, or less than 15%, more than 7% and/or to be more than 10% amount is included.In a specific embodiment, aerogel generating agent is included with the amount less than 13%.In embodiments, Aerogel generating agent is by weight the 11% to 13% of final sheet material, or about 11.25% or 12.5%.Suitably with including smoking The amount of tobacco-containing material present in the mixture of the smokable filler of product combines the amount of selection aerogel generating agent.For example, In mixture comprising sheet material at high proportion and low ratio tobacco-containing material, in the sheet material relatively low aerogel generating agent may be needed to carry Amount.Or, in the mixture of tobacco-containing material, higher gas may needed molten in the sheet material comprising low ratio sheet material and at high proportion Glue propellant carrying capacity.

Suitable aerogel generating agent includes being selected from polyalcohol, such as glycerine, propane diols and triethylene glycol；Ester, such as citric acid The aerosol former of triethyl or glyceryl triacetate, high boiling hydrocarbon or non-polyalcohol, such as glycol, D-sorbite or lactic acid.It can make With the combination of aerogel generating agent.

Another function of aerogel generating agent is the plasticising to the sheet material.Suitable other plasticizer includes water.The piece Material can be inflated suitably.Casting slurry is consequently formed the sheet material with loose structure.

Can be advantageously by the aerogel generating agent or a part of aerogel generating agent packing, preferably microencapsulation, or with Other manner is stabilized.The amount of aerogel generating agent can be higher than given range in this case.

The cigarette material advantageously includes the spices for making the dimmed colouring agent of the material and/or assigning particular flavor.It is restricted It may include such as molasses and malt extract in the suitable colorant materials of local regulation.Fine grinding can also be used, it is granular or The tobacco of homogenizing.The food color that industry can also be used to ratify, such as E150a（Caramel）、E151（Brilliant black BN）、E153（Plant Thing carbon）Or E155（Brown HT）.Suitable spices includes such as menthol and vanillic aldehyde.Other mould materials may also be suitable.Or The presence of person, vermiculite or other inorganic fillers may make the color of tobacco substitute sheet material darker.Colouring agent can be with final tobacco The 0-10 weight % for substituting sheet material is present, and may up to 5-7 weight %.In some embodiments, colouring agent is final tobacco Substitute sheet material is less than 7%, less than 6% or less than 5%.In some embodiments, the amount of colouring agent used is less than 4%, less than 3% Or less than 2%.For example, caramel suitably can exist with the 0-5 weight % of final tobacco substitute sheet material or less than about 2 weight %, Or about 1.5%.Other suitable colouring agents include molasses, malt extract, coffee-extract, tealeaves botany bar gum（tea resinoids）, St. John's Bread, prune extract or tobacco extract.The mixture of colouring agent can also be used.

If local regulation allows, spices can also be added to change the taste and flavor characteristic of tobacco substitute sheet material.Have Sharp ground, if using food coloring in the alternative, it exists with 0.5 weight % of final tobacco substitute sheet material or less. Or, colouring agent can be spread in sheet material after sheet material is made.

Fiber can be added, such as cellulose fibre, such as wood pulp, flax, hemp or bast for the sheet material to provide higher Intensity, compared with one or more in low-density or higher Filling power.If adding fiber, it can be with the 0.5-10 of final sheet material Weight %, the amount less than 5 weight % or less than about 3 weight % are present.Advantageously, fibrous material is not present in the sheet material no matter It is cellulose or other fibrous materials.

In some embodiments, the tobacco substitute sheet material is free from the sheet material of tobacco.It should be understood that in the mixing High sheet material content in thing（For example higher than 75 weight % of the mixture）Under, the combustibility of the mixture is poor.This can pass through example Most 5-10% low amounts granulated carbon is such as mixed in tobacco substitute sheet material to overcome.The carbon is not preferably the carbonaceous material of agglomeration, That is the carbon with another material by not mixing to be pre-processed to produce agglomerate.

In some embodiments, the tobacco substitute sheet material is mixed to provide smokable filler with tobacco-containing material.This is mixed Tobacco-containing material component in compound is preferably senior leaf-level.Advantageously, most of tobacco-containing material is pipe tobacco（cut tobacco）.The tobacco-containing material can include the expanding tobacco of 20-100% high level expansion technique, such as DIET.Such material Loading is usually 6-9 cc/g（See, for example, GB 1484536 or US 4,340,073）.

In some embodiments, the mixture also includes other blending ingredients less than 30% in addition to blade, described other Blending ingredients are stems（Cut rolled stem, CRS）, water process stem（Water treated stem, WTS）Or steam The stem of vapour processing（Steam treated stem, STS）Or reconstituted tobacco.Other components can account for tobacco-containing material and finally weigh That measures is less than 20%, less than 10% or less than 5%.

In some embodiments, smoking product of the invention includes the tobacco-containing material treated with aerogel generating agent. The tobacco-containing material can be handled with aerogel generating agent, but this be not tobacco-containing material and sheet material all mixtures it is all necessary.

The amount for the aerogel generating agent being added in tobacco is the 2-6 weight % of tobacco.After processing, tobacco-containing material and piece The total amount of aerogel generating agent is advantageously the 4-12 weight % of smokeable material in the mixture of material, preferably on dry wt/wt bases It is upper to be less than 10%, and preferably greater than 5%.

In one embodiment, glycerine is added in the smokeable material comprising tobacco substitute sheet material.This is sent out Now making the content of some phenol reduces.Glycerine can be added with about 1 weight % amount（Except what is potentially included in tobacco substitute sheet material Outside any glycerine）.It is believed that glycerine, which is added in TSS, can produce cooperative effect.

In some embodiments, the mixture may also include the fragrant spices of head to improve the fragrance of the mixture and aesthetic Energy.

The another method for reducing the smog poisonous substance yield in the smoking product of the present invention is that selection shows undesirable smog The tobacco composition component of the low content of component precursor, such as TSNA and metal.It is, for example, possible to use specific（As lighter）Cigarette Careless mixture and by selecting nitrate（TSNA precursor）Content low tobacco plant parts reduce TSNA contents.At some In embodiment, this is including the use of tobacco leaf.Those skilled in the art know modification mixed process has these institutes to provide Need the mode of the tobacco composition of property.

The tobacco composition can also include expanding tobacco, and it is the cigarette for having expanded the tobacco quality burnt to reduce in cigarette Silk.A kind of method for processing tobacco is so-called dry-ice expanding tobacco（DIET）.Tobacco uses liquid two in pressure vessel Carbonoxide（CO₂）Immersion, reduces pressure and drains liquid CO₂, cause to form solid CO in the loose structure of tobacco₂Or dry ice. Then it is rapid to heat tobacco, so that dry ice turns into gaseous state CO₂, this makes the structure of tobacco leaf silk be expanded to close to baking（curing）Work The volume of blade before skill.Expanding tobacco is widely used in commercial cigarette, more in the cigarette with low ISO yield.

In one embodiment of the invention, the smokeable material is by 50% mixed processing tobacco（BTT）, 15% tobacco replaces For sheet material（TSS）, 10% dry-ice expanding tobacco（DIET）Constituted with the mixture of 25% blade, 1% glycerine of addition and 0.8% addition The fragrant spices of head.

Above-mentioned filter tip and smokeable material technical tie-up acts on providing smog level of poisons significantly reduced smoking system Product.

In some embodiments, smoking product of the invention cause main flume as defined herein at least 75%, At least 90%, at least 95% or all key component is reduced（For example compared with traditional cigarette）.

The MS mentioned on the present invention so-called " key component " is to be confirmed as those unacceptable cigarettes in the literature Mist composition（See, for example, The Scientific Basis of Tobacco Product Regulation: Report of a WHO Study Group (2007) WHO Technical Report Series 945, Geneva）.

Preferably use depth suction mode and determine the reduction, wherein making ventilation keep opening, because product has been designed to ISO is matched, and the airflow obstruction of Health Canada patterns is offset（negate）The effect of segmentation tipping paper.

The yield of key component is preferably decreased to few 5% or at least 10% or more.

Embodiment

The specification of some examples of smoking product according to embodiment of the present invention is listed in the following table.Describe two kinds Prototype；One kind 1 milligram of tar of release, another 7 milligrams of tar of release." Cig. " is used as the abbreviation of " cigarette ".

Table 1-smoking product characteristic

Parameter type	Unit	1 milligram of prototype target	7 milligrams of prototype targets
				Cigarette length	mm	83	83
Cigarette girth	mm	21.0	21.0
				Filter length	mm	37	37
Tipping paper width（Before separation）	mm	64	64
				Humidity in packaging（For tobacco weight）	%	12.0	12.0
Density（Within a package under humidity）	mg/cm3	305	305
				Tobacco weight（Within a package under humidity）	mg	490	490
Cigarette paper+binder wt	mg	25	25
				The tobacco spice weight of application	mg	3.9	3.9
Cigarette weight（Within a package under humidity）	mg	512	512
				Filter tip weight	mg	283	283
Total cigarette weight（Within a package under humidity）	mg	818	818
				Non-tobacco weight	mg	332	332
Filter tip is ventilated	%	80	40
				Vented type		It is segmented tipping paper and online laser	It is segmented tipping paper and online laser
Online laser position	mm	13	13
				Cigarette pressure drop (opens anti-)	mmWG	165	130
Filter stick pressure drop (enc)	mmWG	135	110
				Ends stability	mg/end	<8	<8
Cigarette consolidation	%	>72	>72
				Tar	mg	1.0	7.0
Nic	mg	0.1	0.7
				CO	mg	1.0	7.0
Puff number		7.2	7.4

Table 2-cigarette paper characteristic

Parameter type	Unit	1 milligram of prototype target	7 milligrams of prototype targets
				Title		(LIPtech) CP50-23VGM2.0KCW	(LIPtech) CP50-23VGM1.0KCW
Supplier		Glatz	Glatz
				Bobbin width	mm	23	23
Fiber		Timber	Timber
				Permeability	CU	50	50
Thickness	μm	40	40
				Grammes per square metre	g/m2	23	23
Combustion additive type		Potassium citrate	Potassium citrate
				Combustion additive content	%	2.0	1.0
CaCO3Content	%	30	30

Table 3-tipping paper characteristic

Parameter type	Unit	1 milligram of prototype target	7 milligrams of prototype targets
				Title		MLO3345146	MLO3345146
Supplier		Benkert	Benkert
				Width after machine cutting	mm	21/11	21 / 11
Porosity	CU	0	0
				Keyhole mode		OML + ST	OML + ST
Thickness	μm	50	50
				Grammes per square metre	g/m2	42	42

The filtering material of 4-7 milligrams of types of table（440 mm Wg）

Component	It is overall	Mouth end	Stage casing	Tobacco end
					Base rod	THS 100600	ABR060414	AAS060501	AAS060502
Tow	N/A	8.0Y/28000 Rhodia	9.0Y/25000 Rhodia	9.0Y/25000 Rhodia
					Forming paper	CP200-OU 0.4 KCW	23.0mm 12000CU Wattens	23.0mm 12000CU Wattens	23.0mm 12000CU Wattens
Plasticizer	N/A	Triethyl citrate	Triethyl citrate	Triethyl citrate
					Adhesive is fixed	072-0143 Henkel	072-0143 Henkel	072-0143 Henkel	072-0143 Henkel
Adhesive seam 1	5675A/B Forbo	334-2950 Tobacoll	334-2950 Tobacoll	334-2950 Tobacoll
					Additive	N/A	N/A	AFR	HAC
Weight of additive (mg)	70	0	20	50

The filtering material of 5-1 milligrams of types of table（540 mm Wg）

Component	It is overall	Mouth end	Stage casing	Tobacco end
					Base rod	THS 100601	ABR060414	AAS060501	AAS060503
Tow	N/A	8.0Y/28000 Rhodia	9.0Y/25000 Rhodia	5.0Y/25000 Rhodia
					Forming paper	CP200-OU 0.4 KCW	23.0mm 12000CU Wattens	23.0mm 12000CU Wattens	23.0mm 12000CU Wattens
Plasticizer	N/A	Triethyl citrate	Triethyl citrate	Triethyl citrate
					Adhesive is fixed	072-0143 Henkel	072-0143 Henkel	072-0143 Henkel	072-0143 Henkel
Adhesive seam 1	5675A/B Forbo	334-2950 Tobacoll	334-2950 Tobacoll	334-2950 Tobacoll
					Additive	N/A	N/A	CR20D	Synthesize carbon resin
Weight of additive (mg)	70	0	20	50

Table 6 summarizes the generally acknowledged machine drawn pattern for generating smoke data.

Table 6-smoking machine parameter

Suction description	Abbreviation	Aspiration (ml)	Puff duration (s)	Puff interval (s)	Filter tip exhaust blocks (%)
						ISO 3308/4387	ISO	35	2	60	0
Health Canada Intense	HCI	55	2	30	100
						ISO WG 9 Intense Option B	WG9B	60	2	30	50

Table 7 shows yield of 7 milligrams of test products under ISO and WG9 machine drawn patterns and the ratio including WG9 and ISO Rate.Table 8 provides the corresponding information on compareing/comparing cigarette.Data from the two tables all show, WG9:ISO yield Ratio is tended to be more than test products for reference product.This meets prediction, and WG9 patterns are used because working as（Wherein block half Passage and ST）When aspirating test products, in higher cigarette smoking amount（Identical puff duration）The ventilation of lower realization Reduction.Therefore this be flow rate dependant rather than volume dependence.If not blocking passage and segmentation tipping paper ventilation, examination The yield for testing product is even lower under higher aspiration.

Main flume data of 7-7 milligrams of test products of table under ISO and WG9 suction modes

Main flume data of 8-7 milligrams of reference products of table under ISO and WG9 suction modes

Using HCI suction modes, in absolute sense and " normalization " be NFDPM（Tar）During with nicotine, smog production The example of amount reduction is shown in table 9.Notice under HCI patterns, the use of segmentation tipping paper technology is helpless to and contrasted Thing/tester is compared to the smoke components yield that the smoking product of the reduction present invention is obtained.

The mainstream data of table 9-experiment and control cigarette under HCI suction modes

Test vs contrasting datas：Negative (-) value=reduction；Positive=raising

Using WG9 suction modes, in absolute sense and " normalization " be NFDPM（Tar）During with nicotine, smog production The example of amount reduction is shown in table 10.Under WG9 patterns, the use of segmentation tipping paper technology is contributed positively to and comparison The smoke components yield obtained compared to the smoking product of the reduction present invention.

The mainstream data of table 10-experiment and control cigarette under WG9 suction modes

Test vs contrasting datas：Negative (-) value=reduction；Positive=raising

In order to solve various problems and promote the industry, the disclosure various embodiments of citing display in full, wherein can be with Implement invention claimed and excellent smoking product is provided.The advantages and features of the disclosure are only the representatives of embodiment Property sample, and it is non exhaustive and/or exclusive.They are only used for auxiliary and understand and instruct feature claimed.It is appreciated that It is that advantage, embodiment, example, function, feature, structure and/or the other side of the disclosure are not construed as limiting such as right It is required that the disclosure or the equivalent of limitation claim that limit, it is possible to without departing substantially from the scope of the present disclosure and/or essence Other embodiments are used in the case of god and are modified.Various embodiments can suitably include disclosed element, The various combinations of component, key element, part, step, means etc., by or it is basic by disclosed element, component, key element, part, step Suddenly, the various combinations of means etc. are constituted.In addition, the disclosure is included currently without claimed but may require protection following Other inventions.

Described above and example are only used for illustrating the present invention and being not intended to be construed as limiting.Due to those skilled in the art it is contemplated that The modification of the embodiment of spirit and content comprising the present invention, the present invention answers broad interpretation will to be included in appended right Ask and its equivalent in the range of all variations.

Claims (23)

1. smoking product, it includes rod of smokeable material and the filter tip for being connected to described bar one end, and the filter tip is comprising extremely Few two sections and be wrapped in porous, shaped paper, wherein the joint between the first tipping paper covering rod of smokeable material and filter tip with By filter tip engagement on the bar, and at least one additional tipping paper is provided around filter tip, itself and the first tipping paper Separate and separate so as to expose a part of porous, shaped paper between the first tipping paper and at least one additional tipping paper, and its Described in tipping paper there is no forming paper porous, wherein form gap between the first tipping paper and at least one additional tipping paper, The gap is exposed by the filter region of the material encirclement more porous than tipping paper, so that one section of filter tip is only porous, shaped Paper bag encloses.

2. smoking product as described in claim 1, wherein at least one filter tip section includes fiber filter material.

3. the smoking product as described in claim 1 or claim 2, wherein at least one filter tip section includes porous absorption Material.

4. smoking product as described in claim 3, wherein the porous adsorbing material is with many of engineering stephanoporate structure Hole carbon.

5. smoking product as described in claim 3, wherein the porous adsorbing material is the porous carbon derived from synthetic source Pearl.

6. smoking product as described in claim 5, wherein the porous carbon pearl derives self-polystyrene.

7. smoking product as described in claim 3, wherein the filter tip section includes 20 milligrams to 80 milligrams porous absorption Material.

8. the smoking product as described in claim 1 or claim 2, wherein at least one filter tip section includes amberlite Fat.

9. smoking product as described in claim 8, wherein the ion exchange resin has surface active amine.

10. smoking product as described in claim 9, wherein the filter tip section is exchanged comprising 5 milligrams to 40 milligram-ions Resin.

11. the smoking product as described in claim 1 or claim 2, wherein the filter tip includes including fiber filter material Mouth end section, the section comprising ion exchange resin and the section for adjoining rod of smokeable material comprising porous adsorbing material of material.

12. the smoking product as described in claim 1 or claim 2, wherein the filter tip has 30 millimeters to 40 millimeters Length.

13. smoking product as claimed in claim 12, wherein the filter tip has 37 millimeters of length.

14. the smoking product as described in claim 1 or claim 2, the length of the smoking product is 83 millimeters or girth For 21 millimeters.

15. the smoking product as described in claim 1 or claim 2, the length of the smoking product is 83 millimeters and girth For 21 millimeters.

16. the smoking product as described in claim 1 or claim 2, wherein the gap between the tipping paper is 10 millimeters It is wide.

17. the smoking product as described in claim 1 or claim 2, further comprises in tipping paper and/or in filter tip Main body in the passage that is formed.

18. the smoking product as described in claim 1 or claim 2, wherein the rod of smokeable material includes following one Plant or a variety of：

(a) pass through processing to produce the tobacco of the nitrogen-containing compound content of reduction；

(b) pass through processing to remove the tobacco of polyphenol and/or peptide；With

(c) the tobacco substitute sheet material of noninflammability inorganic filler, adhesive and aerogel generating agent is included.

19. smoking product as described in claim 18, wherein the smokeable material further includes blade tobacco.

20. the smoking product as described in claim 18 or claim 19, wherein the smokeable material is further included Dry-ice expanding tobacco（DIET）.

21. smoking product as claimed in claim 18, wherein the smokeable material includes glycerine.

22. smoking product as claimed in claim 18, wherein the smokeable material includes at least one spices.

23. smoking product as claimed in claim 18, wherein the smokeable material includes mixed processing tobacco, tobacco substitute Sheet material, dry-ice expanding tobacco（DIET）, blade tobacco, the fragrant spices of glycerine and head.