CN100379364C - Ventilated smoking article - Google Patents
Ventilated smoking article Download PDFInfo
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- CN100379364C CN100379364C CNB028253051A CN02825305A CN100379364C CN 100379364 C CN100379364 C CN 100379364C CN B028253051 A CNB028253051 A CN B028253051A CN 02825305 A CN02825305 A CN 02825305A CN 100379364 C CN100379364 C CN 100379364C
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- Prior art keywords
- filter tip
- groove
- filter
- tobacco product
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- 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
- A24D3/025—Final operations, i.e. after the filter rod forming process
- A24D3/0258—Means for making grooves
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- 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
- A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
- A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
Abstract
The invention concerns a smoking article filter plug (16) for a cigarette, the filter plug being cylindrical and having a plug wrap (18), grooves (20) being impressed into the plug wrap, and a tipping paper (22) for the attachment of the filter plug to the tobacco rod (12). Some grooves are axially extending with respect to the axis of the filter plug and are open on the side of the tobacco rod and extend continuously only over a part of the length of the filter plug. All grooves are covered by a ventilated tipping paper, which allows ventilating air into the axially extending grooves only. In addition the invention concerns the use of such a filter for the reduction of the CO/tar ratio as a function of the filter ventilation.
Description
Technical field
The present invention relates to smoking product, especially but be not limited only to cigarette, comprise a filter tip, wherein filter-tip periphery is suppressed with groove.
Background technology
Known above-mentioned filter tip has various forms.For example US4406294 discloses a kind of cigarette filter, the groove that it has a cylindrical filter, has the air-permeable plug wrap of filter tip and impress out around filter tip from filter-tip arrival end along the part filter length.But, groove is air-locked.Therefore cylindrical filter and groove couple together by the ventilated filter cigarette paper that is provided with passage.This filter structure is simple, and cigarette has basic normal pressure reduction.
US4256122 discloses a kind of cigarette filter with similar structures, and but, wherein the filter tip muzzle is airtight, and the outer surface of filter tip and the wall of groove all are air-locked.Yet some slot openings are in the arrival end of filter tip.Fig. 2,3 and 5 has described the embodiment of slot opening in the pipe tobacco end.Use this class filter tip, can in the harmful smog composition of a large amount of minimizings, obtain the stronger cigarette of smoke, and in the standard cigarette machine, have good processing properties.Yet the filter-tipped packing paper that some embodiment require to bore a hole is accurately located with groove on every side, and this makes and qualitative problem with regard to having brought.
US4649943 is that wherein slot opening is in filter-tip arrival end to the filter-tip further improvement of this class.In addition, the grooved area that air is introduced filter tip by muzzle has a perforation at least, and air-distribution improves in the filter-tip filter stick thereby make.In addition, make by gas impermeable material and filter-tipped packing paper with ventilation area also helps to improve air-distribution.Lining paper (muzzle) is air-locked, but is provided with air-vent.
In addition, DE-PS2107850 discloses a kind of filter tip that has longitudinal fluting around it.It does not mention muzzle, and groove preferably is opened on filter-tip arrival end.
US4362171 discloses a kind of cigarette filter that has groove, and described groove neither is opened on the pipe tobacco end and also is not opened on arrival end, and only the central part at filter tip extends.Each groove is provided with an opening, so vent air is vertically caused the arrival end direction along filter stick.Therefore, outside air is introduced into cigarette filter at a high speed in a simple manner, does not have the threat of stopping up owing to lip pressure and/or the pressure loss.
US4343319 discloses a kind of similar cigarette filter, and it comprises Smoke proof wrapping paper that is used for filter tip and the central tube that extends axially by filter tip, and it flows with slot opening and is connected.Like this, cigarette is divided into two parts after leaving tobacco rod.A part flows through central tube, and other parts flow through filtering material.This pipe and interconnecting channel have increased the complexity in the filter tip manufacturing.
In addition, disclose a kind of cigarette filter among the DE3048905A1, it has the gas-impermeable packing paper that is used for filter core and is located at around the filter core and extends through the groove of whole filter core length.Because it does not need to change producer to, the easier processing and manufacturing of this class filter tip.
From a kind of as can be known filter tip that is used to filter smog of GB2102271, be provided with groove around it, by making around filter tip with corrugated material.Filter ruffle around filtering material is Smoke proof.Between muzzle and corrugated material, be provided with groove, and between cigarette with filter tip paper and corrugated material, also be provided with groove.Filter-tipped packing paper is provided with passage.This class filter element should have various ways, and is convenient to flexible use.
GB2089641A discloses a kind of filter tip that is used for cigarette with central hollow tube, and this blank pipe puts in filtering material from a filter-tip end.Filter core is held by non-porous wrapper, and filter tip and wrapping paper have at least one groove from filter tip one end longitudinal extension.Like this, have the cigarette with filter tip that is low to moderate mid-efficiency and have normal decreasing pressure.The formation of blank pipe has increased the manufacturing requirement.
In addition, GB2136669A has described a kind of cigarette filter with filter tip, and filter tip is on every side around saturating cigarette material.Filter tip has longitudinal ripple, and described ripple forms groove in the outside of saturating cigarette wrapping paper, and described slot opening is in a filter-tip end, and from this end to other end longitudinal extension but do not comprise the whole length of filter tip.The carrying device of saturating cigarette wrapping paper, promptly overcoat makes that part zone is Smoke proof, described zone only comprises the part groove length, and separates with grooved area saturating cigarette, that be positioned at the cigarette paper of filter tip respective end.
GB2095093A discloses a kind of filter tip that has the filter tip cover, and described filter tip cover is non-porous wrapper, and described filter tip also comprises the groove of the direction extension certain distance from filter tip one end along the other end.Described groove can be opened on the periphery air, extends to filter-tip arrival end or is opened on filter-tip pipe tobacco end.Simultaneously also can be that the groove that starts from arrival end and pipe tobacco end is alternately arranged.In order to prevent the interruption of passage, filter tip is fixed on the tobacco rod by narrow strip material to groove.
US-A-3752165 has described the filter tip of the band filter tip cover that is used for smoking product, is wherein holding thin, porous wrapping paper around the filter tip cover.On wrapping paper, be formed with many grooves with the filtering material that is arranged in filter tip one end.Described groove extends to very more short-range apart from the opposite end from filter tip one end, and by saturating cigarette holder cover around.Described groove from filter tip one end extend to apart from the other end have a segment distance a bit.Use this filter tip can from smog, remove tar efficiently, and have acceptable pressure reduction.
In addition, from a kind of as can be known filter tip that has filter tip of US-A-3910288, described filter tip periphery has groove, and described groove extends to a position in filter tip arrival end the place ahead from filter-tip pipe tobacco end.Described groove is formed at around the rigid plastic wrapper around the filtering material.End at each groove is provided with an opening, thereby makes the possibility that is connected to become with filtering material.In this invention, do not provide the filter tip ventilation unit.
The very resistance to compression of this filter tip, thus each groove can both keep clear during the whole smoking of smoking product.Cigarette amount by little by little will flowing through groove becomes 0 from the value of original qualification, and described filter tip makes cigarette of every suction delivery of particulate material almost evenly, and described filter-tip filter efficiency increases relatively stablely simultaneously.
At last, US-A-3596663 has described a kind of filter tip that is used for smoking product, and described filter tip has the filter tip that has groove, and its length without limits.Filter-tipped packing paper and lining paper are porous, and/or perforation.Should be wavy so that increase the size of air-permeable surface and simplify air duct thus by ventilative wrapping paper, described air enters the filtering material of filter tip by ventilative wrapping paper.So just produced ventilated filter, it has reduced the resistance when air passes through filter medium significantly.
In sum, for many years, cigarette filter has groove, thereby makes that smog and/or air are differently derived as the porous of position, groove length, cigarette holder or filter-tipped packing paper and/or the function of aeration.Like this, just the smog that might obtain diluting forms the smog eddy current in the oral cavity, ventilation and smog are derived respectively, and some other effects.
In recent years, people were with one of them smog composition of attention directing, and promptly carbon monoxide (CO) at present at this composition, does not still have a kind of effective, economic filter tip.Especially stipulated the maximum level of CO in the smoke from cigarette in new rules, people are attempting content with CO in the smog and are reducing to below the given maximum.
Summary of the invention
The objective of the invention is to produce a kind of filter tip that is used for smoking product, especially cigarette, compare such as T/N with respect to other composition, it can effectively reduce, and especially adjustable ground reduces the content of CO in the smog.
The application comprises following technical scheme:
1. tobacco product, comprise the cylindrical filter (16) that constitutes by homogeneous filtration material, be used for filter tip (16) air proof seal paper (18), along filter tip (16) longitudinal extension and be stamped into spaced groove (20) on the circumference of sealing paper (18), and be used for filter tip (16) is connected to yew paper on the plume (12), it is characterized in that fluted (20) at the lateral opening of plume (12) and only on the partial-length of filter tip (16), extend continuously, therefore do not extend to the arrival end of filter tip (16), and breathe freely yew paper (22) covering of institute fluted (20) makes vent air enter groove (20) via ventilative yew paper (22).
2. according to technical scheme 1 described tobacco product, it is characterized in that the filtering material of filter tip (16) is a homogeneous on the whole length of filter tip (16).
3. according to technical scheme 1 or 2 described tobacco products, it is characterized in that the maximum that groove (20) extends is 80% of filter tip (a 16) length.
4. according to technical scheme 1 or 2 described tobacco products, it is characterized in that the length of groove (20) equals the 40-70% of filter tip (16) length.
5. according to the tobacco product of technical scheme 4, it is characterized in that the length of groove (20) equals the 55-65% of filter tip (16) length.
6. according to technical scheme 1 or 2 described tobacco products, it is characterized in that being provided with 2-10 groove (20).
7. according to technical scheme 6 described tobacco products, it is characterized in that being provided with 3-5 groove.
8. according to technical scheme 7 described tobacco products, it is characterized in that being provided with 4 grooves.
9. according to technical scheme 1 or 2 described tobacco products, it is characterized in that groove (20) be distributed in symmetrically filter tip (16) around.
10. according to technical scheme 1 or 2 described tobacco products, it is characterized in that groove (20) is V-type or U type.
11. according to technical scheme 1 or 2 described tobacco products, the degree of depth that it is characterized in that groove is 0.5-2mm.
12., it is characterized in that the width of the groove (20) on the circumference is 1-3mm according to technical scheme 1 or 2 described tobacco products.
13. according to technical scheme 12 described tobacco products, the width that it is characterized in that being positioned at the groove (20) on the circumference is 1.5-2.5mm.
14., it is characterized in that filter tip (16) comprises the filter filament that is made of cellulose acetate according to technical scheme 1 or 2 described tobacco products.
15., it is characterized in that filter tip (16) contains additive according to technical scheme 14 described tobacco products.
16., it is characterized in that filter tip (16) contains active carbon, zeolite, Duolite or fragrance improved additives according to technical scheme 14 described tobacco products.
17., it is characterized in that yew paper (22) is porous according to technical scheme 1 or 2 described tobacco products.
18., it is characterized in that yew paper (22) is provided with machinery or electrostatic equipment or the air vent (24) got with laser beam according to technical scheme 1 or 2 described tobacco products.
19. according to technical scheme 1 or 2 described tobacco products, the ventilation degree that it is characterized in that yew paper (22) is between 30-80%.
20. according to technical scheme 19 described tobacco products, the ventilation degree that it is characterized in that yew paper (22) is between 40-70%.
21. according to technical scheme 1 or 2 described tobacco products, it is characterized in that sealing paper has air vent.
22., it is characterized in that air vent is provided by online punch according to technical scheme 21 described tobacco products.
23. reducing as the purposes in the CO/ tar ratio of filter tip ventilation function according to the described tobacco product of one of technical scheme 1-22.
In filter tip of the present invention, owing to be subjected to the influence of hydromechanics, the confining force of filtering material reduces, and its reason is that it and linear flow rate have known correlation: confining force reduces along with the rising of flow velocity.Based on such fact, the CO level is not subjected to the influence of filtering material, and therefore, the CO/ tar ratio reduces.
If airtight filter tip is applied to according to filter tip of the present invention, when suction during cigarette, vent air flows to tobacco rod through groove so, and returns after filtration that material enters in smoker's the mouth.
Another technical scheme, thus filter ruffle a kind of porous inherently or that ventilate and that have air vent can be used.So a part of vent air flows through this passage and passes ventilative filter ruffle and enters filter tip and smoker's oral cavity.Thereby can suitably adjust by the intrinsic or artificial porous of mistake filter ruffle and regulate this part, this just means that pressure reduction/smog mechanics and CO/ tar ratio also will be affected.
As further technical scheme, porous or ventilative plastic tab or paillon foil can be used as plug wrap material.
To cigarette with filter tip paper and airtight muzzle carry out machine laser boring to releasing content of coke tar less than 3mg, preferably to be less than the low delivery products of 1mg particularly useful.Concerning the low delivery products of this class, it is favourable that two row's air vents are set, and a ranking is in the top of axially extended groove, and another ranking is in the downstream in these holes.Online punch is to filter ruffle and be positioned at following filtering material and punch, and makes vent air enter thus.Thereby the formation mixed ventilation is promptly by groove and filtering material.
Be particularly suitable for too as thermoplasticity muzzle of the present invention as the described synthetic or thermoformable filter ruffle of UK Patent Application the 2058543rd, 2056841 or No. 2134365.
Experiment shows that resulting CO/ tar ratio is the function of filter tip ventilation, that is to say, increases the filter tip ventilation, and the CO/ tar ratio will reduce, thereby provides another correcting variable for the CO/ tar ratio.
Owing to only will make the distribution of vent air in the smog very inhomogeneous with a groove, weakened the enjoyment of smoking, therefore be provided with 2 to 10 grooves in a preferred embodiment.10 manufacture processes with upper groove are very complicated, and are difficult to stay enough spaces and provide suitable flow section for single groove.Can obtain result preferably with 4 grooves.
The cross section of this groove is V-type or is preferably the U type, because this cross section has good manufacturing and rheological property.
By selecting suitable groove number, and the appropriate depth of groove, width and length just might be adjusted to filter-tip characteristic the target property of the cigarette that will produce.
All filtering materials commonly used can be used as filtering material, here can be with one or more these materials.The preferred cellulose acetate filter tow that adopts routine.With the conventional art filter tip that hardens, for example at intrafascicular adding glycerol triacetate of filter fiber or Tegda.
In order to reduce other vapour phase composition, also can in filter tip, add additive, for example active carbon, zeolite, fragrance modifying agent (flavour-modifiers), perhaps ion exchange resin, for example known Duolite (Duolite, referring to Application No. the 3716500th or 3943832), it is the small porous particle salt of a weak-base anion-exchange resin.
Preferred filtering material is a homogeneous.Here so-called ' homogeneous ' that is applied to filtering material means does not have flow openings in the filtering material, pipeline or other element.Although homogeneous filtration material can be made up of different filtering materials, for example in different filtration cross sections, filter tip should be the multi-filtering mouth.Homogeneous filtration material is of value to simplifying produces.
Preferably, additive is arranged in the zone that filter tip does not have groove.So just prevented the thermal decomposition of additive in the process of molded production groove.
According to a preferred embodiment, groove extends not more than 80% of filter length, and about 60% can reach result preferably.
Depth of groove should be in the 0.5-2mm scope, and at this moment preferably about 1mm obtains suitable flow.
These standards are taken into account, recorded recess width in the filter tip periphery and should be between 1 to 3mm, preferably between 1.5 to 2.5mm.
It is constant there is no need along the depth of groove of tobacco rod axis.Such as increasing the degree of depth towards openend, filter-tip pipe tobacco side.Groove also can be non-linear, for example is that screw-like or helically are around filter tip.
In some cases, might in filter tip, increase other groove, be and be centered around filter circumference radially.This groove connects axial notch.Described radial groove be positioned at cigarette with filter tip paper ventilation zone under help strengthening ventilation effect.If bigger aerated area also may need to use two or more radial groove.
Filter tip of the present invention obviously can be used as a part double or the triple filter device.
The cigarette with filter tip paper that filter tip is connected on the tobacco rod can have conventional structure, as long as it can ventilate.It can be by adopting porous thereby cigarette with filter tip paper that have intrinsic gas permeability, perhaps by machinery or electrostatic equipment or make passage with laser beam and reach above-mentioned effect.
Description of drawings
For the present invention can being expressly understood and implementing easily, hereinafter will come by way of example with reference to the following drawings, wherein:
Fig. 1 represents to be connected filter-tip perspective view on the tobacco rod by part cigarette with filter tip paper,
Fig. 2 represents according to the present invention and the contrast filter tip, as the curve map of the CO/ tar ratio of filter tip ventilation function,
Fig. 3 represent a filter-tip embodiment with particulate additive and
Fig. 4 represents that another has the filter-tip embodiment of particulate additives.
The specific embodiment
Fig. 1 represents the part perspective view of the cigarette with filter tip of being advised, cigarette with filter tip represents with reference marker 10 that generally it has the filter element 14 that a conventional tobacco rod 12 and is connected to tobacco rod 12 1 ends.Filter element 14 is made up of cylindrical filter 16, estron Shu Zuowei filtering material wherein, and it is evenly distributed in the whole filter tip 16.Therefore, in filter tip 16, there are not flow openings, pipeline or miscellaneous equipment.Here so-called ' homogeneous ' that is applied to filtering material means does not have flow openings in the filtering material, pipeline or other element.Although form by different filtering materials, for example description in the difference of relevant Fig. 4 filtration cross section below, wherein neither one has flow openings, pipeline or the like.
Be suppressed with groove 20 around the filter element 14, shown 4 grooves 20 in this embodiment, evenly distribute in the periphery of filter element 14.Groove 20 extends to the tobacco rod end of filter element 14, and here, groove is an opening, connects thereby exist between groove 20 and the tobacco rod 12 to flow.
Studies show that the axial length of groove 20 should be less than 80% of filter length, preferably about 60%.
The width of the groove 20 nearly 1.5mm degree of depth, U type cross section and the about 2mm of periphery.
In the embodiment shown, filter element 14 is filtered mouth cigarette paper 22 in a usual manner and centers on, and the parallel air vent 24 of two rows is arranged on the circumference.The air vent of more or less row's number or cigarette with filter tip paper 22 also can be set itself be exactly porous.As long as it is just passable that the number of porosity and/or air vent 22 and size can satisfy desired ventilation degree.
For being arranged on of muzzle 18 two kinds of possibilities are arranged in principle, promptly use airtight cigarette paper or ventilative cigarette paper.Using under the situation of airtight cigarette paper as muzzle 18, when smoking, vent air flows through air vent 24 and enters groove 20, then flow to tobacco rod from groove 20, in this vent air reverses direction,, enter through filter tip 16 in smoker's the mouth with the smog of tobacco rod 12.
If muzzle is breathed freely, and though itself be exactly porous or be provided with passage, but the adjustment member of vent air stream enters filter tip and smoker's oral cavity by flow channel through air-permeable plug wrap.This part air is not the air that flows through groove 20.In this way, on two positions, utilize air draught to adjust the smog dilute strength, promptly at first utilize, secondly utilize the vent air that directly enters filter tip 16 through muzzle 18 through tip paper 22 with along the vent air of groove 20.
If necessary, can be at the other short groove that only is opened on filter tip 14 entrance sides of outer surface compacting of cigarette with filter tip paper 22.Because these grooves are not communicated to aerated area 24, therefore, they do not have the rheology function, only remind the smoker to have groove in filter element 14.
Fig. 2 has shown the filter-tip filtration ventilatory effect figure that is made of conventional estron filter tow according to of the present invention, its relevant CO/ tar ratio, described filter tip comprises air-locked muzzle and four grooves 20 with above-mentioned size, described groove be distributed in symmetrically filter tip 16 around, and, extend beyond 60% of filter element 14 length from the pipe tobacco section.
In experiment, the ventilation of filter element 14 changes, just from 0 to 70% of Maximum Ventilatory Volume.For 3mg or product still less, in order to reach desired ventilation level, need to adopt other at the machine laser boring and the cigarette holder of punching in advance.So both improve ventilation level, also helped to reduce cigarette pressure drop.The reduction of resulting CO/ tar ratio balances each other with the ventilation level that is adopted.
In Fig. 2, round dot indication measured value that make by the monoacetate filter tow, unnotched conventional filtration mouth, and square expression size is identical with above-mentioned contrast filter tip, has the measured value of the filter element 14 of structure of the present invention.
People can be fully recognized that, for the tar content that is discharged, filter element 14 according to the present invention has reduced CO content in the smog, thereby the CO/ tar ratio drops to about 0.7 from about 1.4, yet do not adopt under the situation of groove only utilizing ventilation, the CO/ tar ratio only is reduced to about 1.12.
Thereby, adopt filter element of the present invention, by being that cigarette with filter tip paper 22 is selected suitable ventilation degree, the CO/ tar ratio will reduce to below the limit value that new legislation sets.
Other that adopts that filter-tip cigarette of the present invention carries out be studies show that, also confirmed The above results at the different tobacco compositions that are arranged in the cigarette cut tobacco part.Table shown among the 1-3, adds filter tip of the present invention and the result that obtains in the column of smoke of three kinds of cigarette commodity.The tar levels of the corresponding cigarette that has the conventional filtration mouth approximately is respectively 10mg, 6mg, 3mg.DIN or iso standard are followed in measurement.
Filter-tip groove parameter used in these are measured is as follows: 4 grooves, and long 17mm, approximately 1.5mm is wide dark with 0.5-1mm.Muzzle is air-locked, does not also have other ventilation.
The result clearly illustrates that filter tip of the present invention (being appointed as EF) becomes possibility by the cigarette that the adjustment ventilation level makes the pressure reduction of the cigarette of producing and adopting standard filter tip (being appointed as SF) have comparativity, has obviously reduced the CO/ tar ratio simultaneously.
Table 1:
| SF | EF | EF | EF | EF | EF | |
| Filter tip pressure reduction (mm water column) | 72 | 76 | 76 | 74 | 73 | 72 |
| The filter tip ventilation | 22.6 | 0.0 | 12.0 | 51.8 | 57.2 | 62.1 |
| Tar (mg) | 10.25 | 12.4 | 11.7 | 8.8 | 7.2 | 5.7 |
| CO(mg) | 11.21 | 13.3 | 12.1 | 6.7 | 4.5 | 2.9 |
| Cigarette pressure reduction (mm water column) | 117 | 137 | 121 | 104 | 93 | 93 |
| CO/ tar | 1.09 | 1.07 | 1.03 | 0.76 | 0.63 | 0.51 |
Table 2:
| SF | EF | EF | EF | EF | |
| Filter tip pressure reduction (mm water column) | 108 | 90 | 89 | 91 | 89 |
| The filter tip ventilation | 43.0 | 0.0 | 50.6 | 58.3 | 69.1 |
| Tar (mg) | 5.6 | 11.4 | 7.8 | 6.1 | 4.3 |
| CO(mg) | 6.7 | 13.1 | 5.8 | 3.5 | 1.8 |
| Cigarette pressure reduction (mm water column) | 112 | 144 | 114 | 110 | 107 |
| CO/ tar | 1.19 | 1.15 | 0.74 | 0.57 | 0.42 |
Table 3:
| SF | EF | EF | EF | EF | |
| Filter tip pressure reduction (mm water column) | 124 | 100 | 98 | 99 | 98 |
| The filter tip ventilation | 56.7 | 0.0 | 45.2 | 51.1 | 62.5 |
| Tar (mg) | 3.33 | 8.8 | 6.3 | 5.2 | 4.4 |
| CO(mg) | 4.24 | 11.3 | 5.4 | 3.6 | 2.6 |
| Cigarette pressure reduction (mm water column) | 107 | 144 | 125 | 121 | 120 |
| CO/ tar | 1.27 | 1.28 | 0.86 | 0.69 | 0.59 |
Fig. 3 represents to be connected to the cross section of the filter element of the present invention 14 on the tobacco rod 12, same Fig. 1 of Reference numeral of same parts.Muzzle 18 is enclosed within on the filter tip 16, is included in that granular active carbon sticks to wherein part in the zone 26.Muzzle 18 forms groove 20 after being wound to filter tip 16 in muzzle 18.Described filter element is an one.
Another embodiment of a same subject is illustrated among Fig. 4.Yet, in this embodiment, filter element comprises 3 parts: a groove part at filter element surface formation groove 20, one comprises the Dalmatian carbon part 28 that is dispersed in the intrafascicular activated carbon granule of estron, and a conventional estron bundle part 30.These 3 parts can be linked together by a muzzle, and described muzzle is mouldable, thereby produce groove at groove part.Selectively, perhaps continuing non-coiling cellulose acetate (NWA) part certainly or holding in the surface of muzzle part of cellulose acetate to form groove.Then these 3 parts are come together, hold (not shown) with other muzzle then.
Embodiment shown in Fig. 3 and 4 has solved the problem of having at the filter tip part molded indentation that contains particulate matter, if particulate matter touches heating element heater and can produce unfavorable effect during injection molding.Yet, might if especially adopt a heating shaping muzzle, and can freely select by adding the thermosetting groove containing carbon part the design of cigarettes personnel.
In addition, the additive material that is added among the present invention has produced influence to other vapour phase composition, especially can highly beneficial ground selectivity remove some Hoffmann analyte tabulation (referring to Hoffmann, D., Hoffmann, I., " the smog composition of cigarette (tobacco smokecomponents) ", Beitrage zur Tabakforschung International 18 (1998) 49) in compound.
Claims (23)
1. tobacco product, comprise the cylindrical filter (16) that constitutes by homogeneous filtration material, be used for filter tip (16) air proof seal paper (18), along filter tip (16) longitudinal extension and be stamped into spaced groove (20) on the circumference of sealing paper (18), and be used for filter tip (16) is connected to yew paper on the plume (12), it is characterized in that fluted (20) at the lateral opening of plume (12) and only on the partial-length of filter tip (16), extend continuously, therefore do not extend to the arrival end of filter tip (16), and breathe freely yew paper (22) covering of institute fluted (20) makes vent air enter groove (20) via ventilative yew paper (22).
2. tobacco product according to claim 1 is characterized in that the filtering material of filter tip (16) is a homogeneous on the whole length of filter tip (16).
3. tobacco product according to claim 1 and 2 is characterized in that the maximum that groove (20) extends is 80% of filter tip (a 16) length.
4. tobacco product according to claim 1 and 2 is characterized in that the length of groove (20) equals the 40-70% of filter tip (16) length.
5. according to the tobacco product of claim 4, it is characterized in that the length of groove (20) equals the 55-65% of filter tip (16) length.
6. tobacco product according to claim 1 and 2 is characterized in that being provided with 2-10 groove (20).
7. tobacco product according to claim 6 is characterized in that being provided with 3-5 groove.
8. tobacco product according to claim 7 is characterized in that being provided with 4 grooves.
9. tobacco product according to claim 1 and 2, it is characterized in that groove (20) be distributed in symmetrically filter tip (16) around.
10. tobacco product according to claim 1 and 2 is characterized in that groove (20) is V-type or U type.
11. tobacco product according to claim 1 and 2, the degree of depth that it is characterized in that groove is 0.5-2mm.
12. tobacco product according to claim 1 and 2 is characterized in that the width of the groove (20) on the circumference is 1-3mm.
13. tobacco product according to claim 12, the width that it is characterized in that being positioned at the groove (20) on the circumference is 1.5-2.5mm.
14. tobacco product according to claim 1 and 2 is characterized in that filter tip (16) comprises the filter filament that is made of cellulose acetate.
15. tobacco product according to claim 14 is characterized in that filter tip (16) contains additive.
16. tobacco product according to claim 14 is characterized in that filter tip (16) contains active carbon, zeolite, Duolite or fragrance improved additives.
17. tobacco product according to claim 1 and 2 is characterized in that yew paper (22) is porous.
18. tobacco product according to claim 1 and 2 is characterized in that yew paper (22) is provided with machinery or electrostatic equipment or the air vent (24) got with laser beam.
19. tobacco product according to claim 1 and 2, the ventilation degree that it is characterized in that yew paper (22) is between 30-80%.
20. tobacco product according to claim 19, the ventilation degree that it is characterized in that yew paper (22) is between 40-70%.
21. tobacco product according to claim 1 and 2, it is characterized in that sealing paper has air vent.
22. tobacco product according to claim 21 is characterized in that air vent is provided by online punch.
23. reducing as the purposes in the CO/ tar ratio of filter tip ventilation function according to the described tobacco product of one of claim 1-22.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01129382.6 | 2001-12-18 | ||
| EP01129382A EP1321050B1 (en) | 2001-12-18 | 2001-12-18 | Filter for a smoking article |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1604744A CN1604744A (en) | 2005-04-06 |
| CN100379364C true CN100379364C (en) | 2008-04-09 |
Family
ID=8179494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028253051A Expired - Fee Related CN100379364C (en) | 2001-12-18 | 2002-12-11 | Ventilated smoking article |
Country Status (30)
| Country | Link |
|---|---|
| US (2) | US20050076927A1 (en) |
| EP (2) | EP1321050B1 (en) |
| JP (1) | JP4015999B2 (en) |
| KR (1) | KR100737573B1 (en) |
| CN (1) | CN100379364C (en) |
| AP (1) | AP1915A (en) |
| AR (1) | AR037903A1 (en) |
| AT (1) | ATE341234T1 (en) |
| AU (1) | AU2002350932C1 (en) |
| BR (1) | BR0215033B1 (en) |
| CA (1) | CA2470198C (en) |
| CO (1) | CO5590868A2 (en) |
| DE (1) | DE50111161D1 (en) |
| DK (1) | DK1321050T3 (en) |
| EA (1) | EA007110B1 (en) |
| EG (1) | EG23225A (en) |
| ES (1) | ES2269284T3 (en) |
| GE (1) | GEP20063756B (en) |
| HK (1) | HK1076686A1 (en) |
| HR (1) | HRP20040509A2 (en) |
| HU (1) | HUP0402618A3 (en) |
| IL (1) | IL162446A0 (en) |
| MX (1) | MXPA04006078A (en) |
| OA (1) | OA12741A (en) |
| PL (1) | PL197771B1 (en) |
| RS (1) | RS50890B (en) |
| TW (1) | TWI323646B (en) |
| UA (1) | UA76567C2 (en) |
| WO (1) | WO2003051144A1 (en) |
| ZA (1) | ZA200404588B (en) |
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| US7874296B1 (en) * | 2006-07-26 | 2011-01-25 | Mohammad Said Saidi | Cigarette gas filter |
| GB0715172D0 (en) | 2007-08-03 | 2007-09-12 | British American Tobacco Co | Filter and method for making a filter for a cigarette |
| ES2420685T5 (en) | 2008-05-21 | 2017-02-10 | R.J. Reynolds Tobacco Company | Apparatus and associated method for forming a filter component of a smoking article and smoking articles manufactured therefrom |
| US8079369B2 (en) | 2008-05-21 | 2011-12-20 | R.J. Reynolds Tobacco Company | Method of forming a cigarette filter rod member |
| GB0809865D0 (en) | 2008-05-30 | 2008-07-09 | British American Tobacco Co | Filter for a smoking article |
| US20100059072A1 (en) * | 2008-09-09 | 2010-03-11 | Steve Woodson | Ventilated smoking material perforation apparatus, method and product |
| US20100059075A1 (en) * | 2008-09-09 | 2010-03-11 | Steve Woodson | Ventilated smoking material perforation apparatus and method |
| DE102008056384B4 (en) * | 2008-11-10 | 2017-03-30 | British American Tobacco (Germany) Gmbh | Multifilter for a smoking article |
| GB0921930D0 (en) * | 2009-12-16 | 2010-02-03 | British American Tobacco Co | Smoking article component |
| US9034106B2 (en) * | 2010-03-26 | 2015-05-19 | Philip Morris Usa Inc. | Smoking article including alkanoylated glycoside |
| RU2472401C2 (en) * | 2010-08-30 | 2013-01-20 | Владимир Владимирович Сарычев | Cigarette filter with variable filtration degree |
| GB201016387D0 (en) * | 2010-09-29 | 2010-11-10 | Filtrona Int Ltd | Tobacco smoke filter |
| CN102144811B (en) * | 2011-04-13 | 2013-04-03 | 南通烟滤嘴有限责任公司 | Cigarette filter containing patterned groove cellulose paper and preparation method thereof |
| EP2510814A1 (en) * | 2011-04-15 | 2012-10-17 | Philip Morris Products S.A. | Ventilated smoking article including sorbent material |
| GB201112466D0 (en) * | 2011-07-20 | 2011-08-31 | British American Tobacco Co | Smoking article |
| RU2564600C1 (en) * | 2011-11-07 | 2015-10-10 | Филип Моррис Продактс С.А. | Smoking product with decolourising segment |
| AR089183A1 (en) | 2011-11-30 | 2014-08-06 | Philip Morris Products Sa | ARTICLE TO SMOKE WITH A VENTILATED NOZZLE THAT INCLUDES FIRST AND SECOND ROADS OF AIR FLOW |
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| GB201217682D0 (en) * | 2012-10-03 | 2012-11-14 | British American Tobacco Co | A smoking article and a method of manfacturing a smoking article |
| TWI629008B (en) * | 2012-10-22 | 2018-07-11 | 菲利浦莫里斯製品股份有限公司 | Filter segment comprising an acetate salt and glycerine |
| ES2584727T3 (en) * | 2013-02-27 | 2016-09-28 | Philip Morris Products S.A. | Smoking item with brand that changes color |
| SG11201506685QA (en) * | 2013-02-27 | 2015-09-29 | Philip Morris Products Sa | Smoking article having hidden indicia |
| ITBO20130640A1 (en) * | 2013-11-25 | 2015-05-26 | Gd Spa | FILTERING ELEMENT AND SMOKE ARTICLE INCLUDING THIS FILTER ELEMENT. |
| BR112018073024B1 (en) * | 2016-06-09 | 2022-12-20 | Philip Morris Products S.A. | APPARATUS AND METHOD FOR PRODUCING A SEMI-FINISHED TIE PAPER TEMPLATE FOR MAKING TIE PAPER FOR COLUMN-SHAPED ARTICLES SUCH AS SMOKING ARTICLES |
| CN107034734A (en) * | 2017-04-26 | 2017-08-11 | 广州市花都联华包装材料有限公司 | A kind of ventilative cigarette tipping paper of constant humidity and its manufacturing process |
| CN109619671A (en) * | 2018-11-22 | 2019-04-16 | 湖北中烟工业有限责任公司 | A kind of cigarette with high-air-permeability |
| CN115094673A (en) * | 2022-07-18 | 2022-09-23 | 安徽天翔高新特种包装材料集团有限公司 | Stretch-proof tipping paper capable of increasing air inflow |
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2001
- 2001-12-18 AT AT01129382T patent/ATE341234T1/en active
- 2001-12-18 EP EP01129382A patent/EP1321050B1/en not_active Expired - Lifetime
- 2001-12-18 DK DK01129382T patent/DK1321050T3/en active
- 2001-12-18 DE DE50111161T patent/DE50111161D1/en not_active Expired - Lifetime
- 2001-12-18 ES ES01129382T patent/ES2269284T3/en not_active Expired - Lifetime
-
2002
- 2002-11-12 UA UA20040705881A patent/UA76567C2/en unknown
- 2002-12-11 IL IL16244602A patent/IL162446A0/en unknown
- 2002-12-11 AU AU2002350932A patent/AU2002350932C1/en not_active Revoked
- 2002-12-11 PL PL370700A patent/PL197771B1/en unknown
- 2002-12-11 OA OA1200400168A patent/OA12741A/en unknown
- 2002-12-11 HU HU0402618A patent/HUP0402618A3/en unknown
- 2002-12-11 RS YUP-509/04A patent/RS50890B/en unknown
- 2002-12-11 MX MXPA04006078A patent/MXPA04006078A/en active IP Right Grant
- 2002-12-11 JP JP2003552083A patent/JP4015999B2/en not_active Expired - Fee Related
- 2002-12-11 EP EP02785645A patent/EP1458253A1/en not_active Withdrawn
- 2002-12-11 CN CNB028253051A patent/CN100379364C/en not_active Expired - Fee Related
- 2002-12-11 GE GE5660A patent/GEP20063756B/en unknown
- 2002-12-11 WO PCT/GB2002/005603 patent/WO2003051144A1/en active Application Filing
- 2002-12-11 US US10/499,281 patent/US20050076927A1/en not_active Abandoned
- 2002-12-11 AP APAP/P/2004/003057A patent/AP1915A/en active
- 2002-12-11 CA CA002470198A patent/CA2470198C/en not_active Expired - Fee Related
- 2002-12-11 EA EA200400786A patent/EA007110B1/en not_active IP Right Cessation
- 2002-12-11 KR KR1020047009377A patent/KR100737573B1/en not_active IP Right Cessation
- 2002-12-11 BR BRPI0215033-6A patent/BR0215033B1/en not_active IP Right Cessation
- 2002-12-17 TW TW091136325A patent/TWI323646B/en not_active IP Right Cessation
- 2002-12-18 EG EG2002121371A patent/EG23225A/en active
- 2002-12-18 AR ARP020104947A patent/AR037903A1/en active IP Right Grant
-
2004
- 2004-06-07 HR HR20040509A patent/HRP20040509A2/en not_active Application Discontinuation
- 2004-06-09 ZA ZA2004/04588A patent/ZA200404588B/en unknown
- 2004-06-18 CO CO04057551A patent/CO5590868A2/en active IP Right Grant
-
2005
- 2005-10-03 HK HK05108757A patent/HK1076686A1/en not_active IP Right Cessation
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2010
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