CN102793268A - Cigarette filter stick capable of improving selective harm reduction effect - Google Patents
Cigarette filter stick capable of improving selective harm reduction effect Download PDFInfo
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- CN102793268A CN102793268A CN2012102894368A CN201210289436A CN102793268A CN 102793268 A CN102793268 A CN 102793268A CN 2012102894368 A CN2012102894368 A CN 2012102894368A CN 201210289436 A CN201210289436 A CN 201210289436A CN 102793268 A CN102793268 A CN 102793268A
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Abstract
The invention relates to a cigarette filter stick capable of improving the selective harm reduction effect. The cigarette filter stick comprises a tow filter core and forming paper wrapping the tow filter core, wherein the tow filter core comprises a selective adsorption filter core section close to a cut tobacco and a general filter core section close to the end part of a cigarette; a drainage part is also arranged between the selective adsorption filter core section and the general filter core section; and the drainage part is spaced from the inner side of the forming paper at intervals. According to the cigarette filter stick, due to the arrangement of the drainage part, the airflow resistance in the center of a filter tip is increased, and the airflow flow form of main stream smoke is changed, so that the airflow is forced to transfer to the two sides; more adsorption materials can be in contact with the smoke more uniformly, so that the utilization rate is increased; few smoke components in macromolecular non target adsorptive objects pass through the selective adsorption materials, so that the harm of the smoke components on the selective adsorption materials is reduced, namely material hole blockage or intoxicating phenomenon is reduced.
Description
Technical field
The present invention relates to the manufacturing technology field of cigarette, relate in particular to a kind of cigarette filter rod that improves the selective harm reduction effect.
Background technology
In the prior art; Common binary compound filter candle is generally 25mm or 30mm is long, is that functional filter stick is interval near the pipe tobacco end, and it is the selective absorption filter core; Conventional design is 15mm; What adopt is in common tow filter core, to add a certain amount of characteristic sorbing material, is thereafter common tow filter core, and its conventional design is 10～15mm.And its filter stick formation paper, according to the designing requirement of flue gas dilution rate, two sections filter sticks all adopt the same section forming paper with certain air permeability.This binary compound filter candle, the characteristic sorbing material that adds in its functional filter stick interval can selectivity reduce some special harmful substance in the flue gas, reduces cigarette harmfulness, smoke perfume is not caused too big influence simultaneously.So-called selective harm reduction is meant the specific nuisance decline percentage behind the deduction tar decline percentage, that is: selectivity reduced rate=chemical composition reduced rate-tar reduced rate.The characteristic sorbing material that this binary compound filter candle adds is because the characteristics of aerodynamics yet in actual use; When cigarette mainstream flue gas was flowed through filter stick, centre gas velocity and throughput were maximum, and peripheral air stream speed and throughput are low; Referring to Fig. 1; The lines of band arrow are represented flow line among Fig. 1, and the longer expression of flow line flow velocity is big more, and aerosol particle is many more.And be sprayed at whole section filter core place during selective absorbent, and this flue gas composition that has just caused peripheral selective absorbent to touch is less, and utilization rate reduces; And the absorbed component of treating that the material of center touches too much causes overload; The centre material also touches a large amount of other bulky grain flue gas compositions simultaneously; Cause the material hole blocked or the sorptive material intoxicating phenomenon occurs; Thereby reduced the selective absorption efficient of this part material, the effect of its selective harm reduction is far below breadboard data.And because characteristic sorbing material price is higher, big like this consumption will increase the production cost of cigarette greatly.Simultaneously, though these sorbing materials have certain selectivity, but still be difficult to avoid influence, so consumption is excessive also inadvisable to smoke perfume.
This shows how to improve the actual selection property harm reduction effect of cigarette filter rod, is the present technical issues that need to address in this area.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of cigarette filter rod that improves the selective harm reduction effect,, improve the selective harm reduction effect through the drainage part is set.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of cigarette filter rod that improves the selective harm reduction effect; Form by the tow filter core and the forming paper of parcel tow filter core; Said tow filter core comprises the common filter core section of propping up the end near the selective absorption filter core section of pipe tobacco and near cigarette; Between selective absorption filter core section and common filter core section, also be provided with a drainage part, said drainage part and forming paper medial septal standard width of a room in an old-style house crack are provided with.
Preferably, said drainage part is the drainage ball.
Preferably, said drainage part is processed by microporosity material or wood materials or ganoid inert material.
Preferably, the difference of the diameter of the diameter of said tow filter core and drainage ball is more than the 1mm, and the drainage bulb diameter is not less than 2mm.
Preferably; Along arriving direction away from pipe tobacco near pipe tobacco; Said tow filter core is made up of the first section filter core that sets gradually, second section filter core; Said second section filter core is common filter core, and said first section filter core is the selective absorption filter core, and said drainage part is arranged between first section filter core and the second section filter core; In the present technique scheme, the position of drainage part can be embedded in first section filter core for a part, and another part is embedded in second section filter core; Perhaps, the position of drainage part also can all be embedded in first section filter core or the second section filter core for integral body.
Preferably; Along arriving direction away from pipe tobacco near pipe tobacco; Said tow filter core is made up of the first section filter core that sets gradually, second section filter core, the 3rd section filter core, and wherein first section filter core is common filter core section or strong absorbent-type filter core section, and said second section filter core is selective absorption filter core section; Said the 3rd section filter core is common filter core section, and the drainage part is arranged between second section filter core and the 3rd section filter core; In this technical scheme, the position of drainage part can be embedded in second section filter core for a part, and another part is embedded in the 3rd section filter core; Perhaps, the position of drainage part also can all be embedded in second section filter core or the 3rd section filter core for integral body.
Preferably; Along arriving the direction away from pipe tobacco near pipe tobacco, said tow filter core is made up of the first section filter core that sets gradually, second section filter core, the 3rd section filter core, the 4th section filter core, and wherein first section filter core is common filter core section or strong absorbent-type filter core section; Said second section filter core is selective absorption filter core section; Said the 3rd section filter core is selective absorption filter core section, and wherein, the 3rd section filter core selects the volatility of absorbed component to select a little less than the volatility of absorbed component than second section filter core; Said the 4th section filter core is common filter core section, and said drainage part is arranged between the 3rd section filter core and the 4th section filter core; In this technical scheme, the position of drainage part can be embedded in the 3rd section filter core for a part, and another part is embedded in the 4th section filter core; Perhaps, the position of drainage part also can all be embedded in the 4th section filter core for integral body.
Preferably, said forming paper comprises groove-shaped forming paper section, and groove-shaped forming paper section is wrapped in selective absorption tow filter core part and near the periphery of the common filter core section of mouth end.
Preferably, said selective absorption filter core section comprises mid portion and is around in the peripheral periphery of mid portion, and mid portion is processed by common tow material for core, and periphery adds the characteristic sorbing material by common tow material for core and processes.
Another kind of the present invention can improve the cigarette filter rod of selective harm reduction effect; Along arriving direction away from pipe tobacco near pipe tobacco; Said tow filter core is made up of first section filter core, second section filter core, the 3rd section filter core, the 4th section filter core; Wherein first section filter core is common filter core section or strong absorbent-type filter core section, and said second section filter core is selective absorption filter core section, and said the 3rd section filter core is selective absorption filter core section; Wherein, the 3rd section filter core selects the volatility of absorbed component to select the high volatility of absorbed component than second section filter core; Said the 4th section filter core is common filter core section, between second section filter core and the 3rd section filter core, the drainage part is set; The position of drainage part is that a part is embedded in the 3rd section filter core, and another part is embedded in second section filter core; Perhaps, the position of drainage part is that integral body all is embedded in the 3rd section filter core or the 4th section filter core, and the both sides of said drainage part and forming paper medial septal standard width of a room in an old-style house crack are provided with.
Compared with prior art, cigarette filter rod of the present invention is owing to be provided with the drainage part, and the existence of drainage part has increased the gas-flow resistance of filter stick center, has changed the air current flow form of main flume, forces air-flow to shift to both sides.For the more weak component of volatility (like cyclopentene ketone, two ring terpenes components etc.---these are the aroma constituent in the flue gas normally); Its particle aerodynamics particle diameter is bigger; Thereby molecule flow divert property is relatively poor, usually up to just take place near the drainage part flow direction shift, most of by drainage part and forming paper between the space pass through.And for the stronger small molecule component of performance property (like pyridine, quinoline, crotonaldehyde etc.---these are the nuisance in the flue gas normally), it turns to soon, has more turned to, passed through more the position of the outer shroud selective absorbent of selective absorption filter core morning.So the present invention is provided with the drainage part, played that air-flow is turned to the effect that makes it more fully to contact sorbing material, and realize with different aerodynamics particle diameter flue gas aerosol particle separation effect---the component that volatility is stronger, particle diameter is more little turns to fast more.Like this; Not only thereby sorbing material can touch flue gas more, more equably and increases operation rate; And the flue gas composition of big molecule, non-target adsorbate is less has reduced its infringement to sorbing material through selective absorbent, promptly reduces the material hole and stops up or intoxicating phenomenon.
Description of drawings
Fig. 1 props up the air-flow sketch map when burning and sucking for cigarette filter rod of the prior art at cigarette;
Fig. 2 props up the air-flow sketch map when burning and sucking for cigarette filter rod of the present invention at cigarette;
Fig. 3 is the structural representation that improves the cigarette filter rod embodiment one of selective harm reduction effect of the present invention;
Fig. 4 is the vertical view of second section filter core among Fig. 3;
Fig. 5 is the sketch map of the another kind of modes of emplacement of drainage ball among the embodiment one;
Fig. 6 is the structural representation that improves the cigarette filter rod embodiment two of selective harm reduction effect of the present invention;
Fig. 7 is the structural representation that improves the cigarette filter rod embodiment three of selective harm reduction effect of the present invention.
The specific embodiment
Of the present inventionly be contemplated that basically: a kind of cigarette filter rod that improves the selective harm reduction effect is provided; Form by the tow filter core and the forming paper of parcel tow filter core; Said tow filter core comprises the common filter core section of propping up the end near the selective absorption filter core section of pipe tobacco and near cigarette; Between selective absorption filter core section and common filter core section, also be provided with a drainage part, said drainage part and forming paper medial septal standard width of a room in an old-style house crack are provided with.Referring to Fig. 2, what cigarette filter rod of the present invention was shown props up the air-flow sketch map in when burning at cigarette, and air-flow is during through selectivity filter core section A and common filter core section B, owing to the existence of drainage ball 3 changes liquid form, forces air-flow to shift to both sides.
Common filter core section in the technical scheme of the present invention, the routine that is available technology adopting are made the filter core that the material of filter core is processed, and it does not add adsorption component; And the selective absorption filter core is for making the material of filter core by routine in the prior art and adding the characteristic sorbing material and process.The characteristic sorbing material here can be characteristic sorbing material conventional in the prior art.
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Embodiment one
Referring to Fig. 3, Fig. 4, the cigarette filter rod of the improved selective harm reduction effect of present embodiment comprises tow filter core 1 and is coated on the forming paper 2 of tow filter core periphery and is arranged on the drainage ball 3 in the tow filter core.
Tow filter core 1 comprises first section filter core 11, second section filter core 12, the 3rd section filter core 13, the 4th section filter core 14.
First section filter core 11 is strong absorbent-type filter core, processes by adding the absorption material in the common tow filter core, and wherein active carbon or diatomite are adopted in adsorption material choosing of fine quality.First section filter core 11 pressed close to pipe tobacco 4 and is provided with, and is used for holding back without distinction all kinds of flue gas compositions.Adopt this strong absorbent-type filter core as first section filter core, in the time of can making flue gas through second section filter core of back, the 3rd section filter core, these filter cores can play a role well.
Second section filter core 12 is the selective absorption filter core; Adding sorbing material by the general fibre filter core processes; Concrete structure is: the material for core of core 12a is common material for core; Do not add sorbing material, the periphery 12b that centers on core 12a adds sorbing material by common material for core and processes, and the sorbing material of interpolation can be the difunctional fluidized polymer material of hemoglobin, alkalescence and transition metal etc.In other embodiments, second section filter core here also can adopt structure of the prior art, no matter i.e. center or periphery are added sorbing material by common material for core and processed.
The 3rd section filter core 13 is the selective absorption filter core, and this section filter core selects the volatility of absorbed component to select a little less than the volatility of absorbed component than second section filter core.The structure of this section selective absorption filter core is: no matter center or periphery all are to add sorbing material by common material for core to process.In other embodiments, can select the structure of second section filter core of picture for use, promptly sorbing material is not added at the center yet, only peripheral structure of adding sorbing material.(absorbed component of this section interpolation is for being rich in nucleophile based polyalcohol porous material etc.)
The 4th section filter core 14 is common filter core, promptly adopts material for core conventional in the prior art to process, and do not add sorbing material.
Between the 3rd section filter core 13 and the 4th section filter core 14, also be provided with a drainage ball 3, the purpose that drainage ball 3 is set is to disturb the direction of flue gas proper flow, makes most flue gases get around the drainage ball and forms drainage ball next door process.This drainage ball can select for use the material with micropore to process, and also can select atresia for use or processes near the material of atresia.As can be wooden or glass or the like.Drainage ball 3 diameters are less than the filter core diameter, make join filter core after, between the edge of drainage ball and the forming paper space is arranged.As preferred scheme, the difference of the diameter of filter core and drainage bulb diameter is greater than 2mm.The diameter of drainage ball 3 is preferably at 2mm～5mm.
The size of each filter core section can be preferably following setting:
The 4th section filter core: length is at 2～5mm;
The 3rd section filter core: length is at 5～15mm;
Second section filter core: length is at 5～15mm;
First section filter core: length is at 5～10mm.
Forming paper 2 comprises first section 21 and second sections 22, the first sections 21 and adopts conventional forming paper, promptly do not have groove, have a level and smooth forming paper of low air permeability.Adopt groove-shaped forming paper for second section 22.
In the present embodiment, a drainage ball part stretches in the 3rd section filter core, and another part stretches in the 4th section filter core, and in other embodiments, the drainage ball can all stretch in the 3rd section filter core, and only edge contacts with the 4th section filter core, and is as shown in Figure 5; The drainage ball also can all stretch in the 4th section filter core, and only edge contacts with the 3rd section filter core.
Embodiment two
As shown in Figure 6, different with embodiment one is, the tow filter core in the present embodiment is processed by two sections filter cores, and first section filter core 11 is the selective absorption filter core, and second section filter core 12 is common filter core, between first section filter core and second section filter core, is provided with drainage ball 3.A drainage ball part stretches in first section filter core, and another part extend in second section filter core.
In other embodiments, also can drainage ball integral body be put into first section filter core, only its end contacts with second section filter core; Perhaps drainage ball integral body is put into second section filter core, only its end contacts with first section filter core.
Embodiment three
Referring to Fig. 7, different with embodiment one is that the tow filter core in the present embodiment is processed by three sections; First section filter core 11 is strong absorbent-type filter core; Second section filter core 12 is the selective absorption filter core, and the 3rd section 13 is common filter core, between second section filter core and the 3rd section filter core, is provided with drainage ball 3.A drainage ball part stretches in second section filter core 12, and another part extend in the 3rd section filter core 13.
In other embodiments, also can drainage ball integral body be put into second section filter core, only its end contacts with the 3rd section filter core; Perhaps drainage ball integral body is put into the 3rd section filter core, only its end contacts with second section filter core.
Demonstration test:
Following experimental data is under identical selective absorbent consumption condition, the contrast of the data of the filter stick selective harm reduction of the common binary filter stick of the prior art and the embodiment of the invention three.
1, filter stick design and cigarette trial-production
Blank filter stick: one section long filter stick of 30mm, filter stick are common tow material for core
Contrast with common binary filter stick (code name is I):
(1) the 1st yuan of filter stick near the pipe tobacco end is the selective absorption filter stick, and the long 15mm of filter stick has evenly added the 20mg selective absorbent.
(2) the 2nd yuan of filter stick near the mouth end is common fiber tow filter rods, and filter stick is long to be 15mm.
(3) forming paper is that air permeability is the common forming paper of 12000CU.
The design of ternary filter stick of the present invention (code name II):
(1) the 1st yuan of filter stick near the pipe tobacco end is common fiber tow filter rods, the long 5mm of filter stick.
(2) the 2nd yuan of filter sticks are the round selective absorption filter stick in center, the long 15mm of filter stick; The central cylinder diameter is 3mm, is common tow; Peripheral ring bodies has evenly added the 20mg selective absorbent, and (its structure can be referring to Fig. 4.
(3) the 3rd yuan of filter sticks are common fiber tow filter rods, the long 10mm of filter stick.
(4) the drainage ball is put between 2 yuan and the 3 yuan of rods, diameter 4mm.
(5) forming paper the 22nd segment length is 20mm, is groove-shaped forming paper.
(6) forming paper the 21st segment length is 10mm, is common forming paper.
The selection sorbing material of experiment usefulness is respectively alkalescence and the difunctional fluidized polymer material of transition metal (code name B), is rich in nucleophile based polyalcohol porous material (code name A).
But for guaranteeing comparative, the test cigarette is consistent with tobacco leaf assembly side, other auxilliary material specification, the pipe tobacco amount of contrast cigarette, and it is consistent to regulate the cigarette pressure drop.Related data sees the following form.
2, experimental test data
Conventional flue gas detects data
The nuisance burst size detects data
The selective harm reduction effect analysis
Can see by above experimental data, the design of the ternary of employing band drainage ball of the present invention rod, it is will more existing binary rod effect better to the selectivity reduced rate of nuisance, and more obvious to the raising of the stronger component selective harm reduction effect of volatility.
More than the present invention has been carried out detailed introduction, use concrete example in the literary composition principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. cigarette filter rod that can improve the selective harm reduction effect; Form by the tow filter core and the forming paper of parcel tow filter core; Said tow filter core comprises the common filter core section of propping up the end near the selective absorption filter core section of pipe tobacco and near cigarette; It is characterized in that, between selective absorption filter core section and common filter core section, also be provided with a drainage part, said drainage part and forming paper medial septal standard width of a room in an old-style house crack are provided with.
2. the cigarette filter rod that improves the selective harm reduction effect according to claim 1 is characterized in that, said drainage part is the drainage ball.
3. the cigarette filter rod that improves the selective harm reduction effect according to claim 1 is characterized in that, said drainage part is processed by microporosity material or wood materials or ganoid inert material.
4. the cigarette filter rod that improves the selective harm reduction effect according to claim 2 is characterized in that, the difference of the diameter of the diameter of said tow filter core and drainage ball is more than the 1mm, and the drainage bulb diameter is not less than 2mm.
5. the cigarette filter rod that improves the selective harm reduction effect according to claim 1; It is characterized in that; Along arriving the direction away from pipe tobacco near pipe tobacco, said tow filter core is made up of the first section filter core that sets gradually, second section filter core, and said second section filter core is common filter core; Said first section filter core is the selective absorption filter core; Said drainage part is arranged between first section filter core and the second section filter core, and the position of drainage part is that a part is embedded in first section filter core, and another part is embedded in second section filter core; Perhaps, the position of drainage part is that whole portion is embedded in first section filter core or the second section filter core.
6. the cigarette filter rod that improves the selective harm reduction effect according to claim 1; It is characterized in that along arriving the direction away from pipe tobacco near pipe tobacco, said tow filter core is made up of the first section filter core that sets gradually, second section filter core, the 3rd section filter core; Wherein first section filter core is common filter core section or strong absorbent-type filter core section; Said second section filter core is selective absorption filter core section, and said the 3rd section filter core is common filter core section, and the drainage part is arranged between second section filter core and the 3rd section filter core; The position of drainage part is that a part is embedded in second section filter core, and another part is embedded in the 3rd section filter core; Perhaps, the position of said drainage part is that integral body all is embedded in second section filter core or the 3rd section filter core.
7. the cigarette filter rod that improves the selective harm reduction effect according to claim 1; It is characterized in that; Along arriving the direction away from pipe tobacco near pipe tobacco, said tow filter core is made up of the first section filter core that sets gradually, second section filter core, the 3rd section filter core, the 4th section filter core, and wherein first section filter core is common filter core section or strong absorbent-type filter core section; Said second section filter core is selective absorption filter core section; Said the 3rd section filter core is selective absorption filter core section, and wherein, the 3rd section filter core selects the volatility of absorbed component to select a little less than the volatility of absorbed component than second section filter core; Said the 4th section filter core is common filter core section, and said drainage part is arranged between the 3rd section filter core and the 4th section filter core; The position of drainage part is that a part is embedded in the 3rd section filter core, and another part is embedded in the 4th section filter core, and perhaps, the position of drainage part is that integral body all is embedded in the 3rd or the 4th section filter core.
8. the cigarette filter rod that improves the selective harm reduction effect according to claim 1; It is characterized in that; Said forming paper comprises groove-shaped forming paper section, and groove-shaped forming paper section is wrapped in selective absorption filter core part and near the periphery of the common filter core section of filter stick end.
9. the cigarette filter rod that improves the selective harm reduction effect according to claim 1; It is characterized in that; Said selective absorption filter core section comprises mid portion and is around in the peripheral periphery of mid portion; Mid portion is processed by common tow material for core, and periphery adds the characteristic sorbing material by common tow material for core and processes.
10. cigarette filter rod that can improve the selective harm reduction effect; It is characterized in that; Along arriving the direction away from pipe tobacco near pipe tobacco, said tow filter core is made up of the first section filter core that sets gradually, second section filter core, the 3rd section filter core, the 4th section filter core, and wherein first section filter core is common filter core section or strong absorbent-type filter core section; Said second section filter core is selective absorption filter core section; Said the 3rd section filter core is selective absorption filter core section, and wherein, the 3rd section filter core selects the volatility of absorbed component to select the high volatility of absorbed component than second section filter core; Said the 4th section filter core is common filter core section, between second section filter core and the 3rd section filter core, the drainage part is set; The position of drainage part is that a part is embedded in the 3rd section filter core, and another part is embedded in second section filter core; Perhaps, the position of drainage part is that integral body all is embedded in the 3rd section filter core or the 4th section filter core.
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| CN2012102894368A CN102793268A (en) | 2012-08-14 | 2012-08-14 | Cigarette filter stick capable of improving selective harm reduction effect |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230095A (en) * | 2013-05-22 | 2013-08-07 | 广东中烟工业有限责任公司 | Flow guide cigarette filter rod and flow guide cigarette |
| CN103238936A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Composite flow guide cigarette filter rod and composite flow guide cigarette |
| CN103238935A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Composite flow guide cigarette filter rod and composite flow guide cigarette |
| CN103238932A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Self-drainage cigarette filter rod and self-drainage cigarette |
| CN103238937A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Self-drainage composite cigarette filter rod and self-drainage cigarette |
| CN103238933A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Self-drainage cigarette filter rod and self-drainage cigarette |
| CN103238931A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Composite cigarette filter rod capable of automatically guiding flow and composite cigarette |
| CN103238930A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Self-drainage composite cigarette filter rod and self-drainage composite cigarette |
| CN103238934A (en) * | 2013-05-22 | 2013-08-14 | 广东中烟工业有限责任公司 | Flow guide cigarette filter rod and flow guide cigarette |
| CN103251129A (en) * | 2013-05-22 | 2013-08-21 | 广东中烟工业有限责任公司 | Cigarette filter rod and cigarette capable of achieving automatic drainage |
| CN103263081A (en) * | 2013-05-22 | 2013-08-28 | 广东中烟工业有限责任公司 | Multi-compound flow guiding cigarette filter stick and cigarette |
| CN103263081B (en) * | 2013-05-22 | 2015-06-03 | 广东中烟工业有限责任公司 | Multi-compound flow guiding cigarette filter stick and cigarette |
| CN105916393A (en) * | 2013-12-31 | 2016-08-31 | 菲利普莫里斯生产公司 | Smoking article including flow restrictor in hollow tube |
| CN105916393B (en) * | 2013-12-31 | 2020-02-07 | 菲利普莫里斯生产公司 | Smoking article comprising a flow restrictor in a hollow tube |
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Application publication date: 20121128 |