CN101448416B - Tobacco smoke filter - Google Patents
Tobacco smoke filter Download PDFInfo
- Publication number
- CN101448416B CN101448416B CN200780018507.8A CN200780018507A CN101448416B CN 101448416 B CN101448416 B CN 101448416B CN 200780018507 A CN200780018507 A CN 200780018507A CN 101448416 B CN101448416 B CN 101448416B
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- Prior art keywords
- filter tip
- overcoat
- passage
- extending longitudinally
- filter
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- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 25
- 239000000779 smoke Substances 0.000 title claims abstract description 19
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 30
- 241000208125 Nicotiana Species 0.000 claims abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 235000019504 cigarettes Nutrition 0.000 description 12
- 229920002301 cellulose acetate Polymers 0.000 description 10
- 230000003247 decreasing effect Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000004049 embossing Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
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- 238000013461 design Methods 0.000 description 3
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- 238000009423 ventilation Methods 0.000 description 3
- REFJWTPEDVJJIY-UHFFFAOYSA-N Quercetin Chemical compound C=1C(O)=CC(O)=C(C(C=2O)=O)C=1OC=2C1=CC=C(O)C(O)=C1 REFJWTPEDVJJIY-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241001061264 Astragalus Species 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- ZVOLCUVKHLEPEV-UHFFFAOYSA-N Quercetagetin Natural products C1=C(O)C(O)=CC=C1C1=C(O)C(=O)C2=C(O)C(O)=C(O)C=C2O1 ZVOLCUVKHLEPEV-UHFFFAOYSA-N 0.000 description 1
- HWTZYBCRDDUBJY-UHFFFAOYSA-N Rhynchosin Natural products C1=C(O)C(O)=CC=C1C1=C(O)C(=O)C2=CC(O)=C(O)C=C2O1 HWTZYBCRDDUBJY-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000013773 glyceryl triacetate Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010903 husk Substances 0.000 description 1
- MWDZOUNAPSSOEL-UHFFFAOYSA-N kaempferol Natural products OC1=C(C(=O)c2cc(O)cc(O)c2O1)c3ccc(O)cc3 MWDZOUNAPSSOEL-UHFFFAOYSA-N 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 150000002730 mercury Chemical class 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229960001285 quercetin Drugs 0.000 description 1
- 235000005875 quercetin Nutrition 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000391 smoking effect Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- 238000012360 testing method Methods 0.000 description 1
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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
A tobacco smoke filter (1) comprising an air-permeable axial extending core (2), a first wrapper (3) of air-permeable material around the peripheral surface of the core, and a second wrapper (4) around the first, the first wrapper defining at least with the second wrapper at least one channel extending longitudinally from the upstream end of the filter, and at least one channel extending longitudinally from the downstream end of the filter, each channel extending only part of the core length, wherein at least one portion of the filter includes no longitudinally extending channels.
Description
The present invention relates to tobacco smoke filters, be used in particular for cigarette.
Known cigarette filter tip comprises a filter tip core and two filter tip overcoats, an inner sleeve and an overcoat.This inner sleeve is processed through embossing, thereby forms groove along the regular sections of its length.Each filter tip includes a section of inner sleeve (" bar ") of the inner sleeve (" ripple ") of groove and slotless.Filter tip is produced into the continuous rod that comprises ripple and bar, and it is rapid for the production of back that this continuous rod is cut into certain-length (single filter tip or several filter tip); Form otch in the middle of ripple and bar.Therefore, an end with filter tip have by ripple, formed groove end profile arranged, the other end has slotless or the blank appearance caused due to bar.If look for novelty, grain husk end profile has groove end profile to be positioned at filter tip mouthful of end, if or require common profile end be positioned at tobacco end.
By this class limitation with filter tip be the possibility that has product pressure drop variation with filter tip, special under the condition of large-scale production, if the bar/flute configuration of rod is with respect to a small amount of skew appearance of cutter sweep continuously.Below will discuss this point in detail.
The applicant finds by the bar zone is placed in filter tip, rather than at one end, this filter tip is cut through the place, two ends of the ripple area of being everlasting.Pole length will be not cut variable effect, and finished product performance with filter tip (for example, pressure drop) will be more stable.
According to the invention provides a kind of tobacco smoke filter, it comprises axially extended ventilative fuse, the first overcoat around the gas permeable material of this fuse circumferential surface, with the second overcoat around this first overcoat, this first overcoat at least limits at least one passage extending longitudinally from the filter tip upstream extremity together with the second overcoat, with at least one passage extending longitudinally from the filter tip downstream, each passage only extends the part of fuse length, thereby this at least a portion with filter tip comprises without passage extending longitudinally.
Preferably, the length of each passage is 2 millimeters or larger, preferably between 2.5 millimeters and 23 millimeters, more preferably between 3 millimeters and 15 millimeters, more preferably between 3.5 millimeters and 9 millimeters.The single passage extended from an end (upstream or downstream) or several passage for from the other end, extend those can be different length, or they may be identical length.Passage at the filter tip two ends can be between 7 and 8 millimeters long.Passage at the filter tip two ends can be between 3 and 4 millimeters long, for example 3.75 millimeters.The regulation of the passage of these sizes means that this performance with filter tip (the inhibition degree of tar etc.) will be the acceptable advantage of the present invention (for example, the inhibition of stable pressure decreased, reinforcement) of simultaneously also should guaranteeing to obtain.
This passage is preferably the uniform degree of depth basically in its whole longitudinal extent, although may there be variation, for example passage approaches the place of blind end.
For example, the first overcoat can be for example, fine sheet with profile of tooth (, corrugated) surface, and this fine sheet surrounds with the toothed surfaces facing to the second overcoat.The first overcoat preferably has the ripple that vertically (for example axial) extends, and this ripple is at least determined passage extending longitudinally together with the second overcoat.Can be provided by the ripple of the first overcoat each passage and in the far-end sealing of the filter tip end extended from passage or stop up.First outer be enclosed within on two surfaces form ripple and may with limit passage extending longitudinally together with fuse also has the second overcoat.But the core surface of surrounding in the finished product filter tip may conform to the ripple inner surface of the first overcoat, only between first and second overcoat, stays passage.
That the filter tip completed of the present invention may have is ventilative (it may be intrinsic ventilative material and/or porous) the second overcoat of encirclement the first overcoat (for example ripply).This ventilative overcoat can be the extra coiling in top, and filter tip is included in filter-tip in this way, and this extra coiling is only applied in the cigarette manufacture stage.Initial the first overcoat production filter rod to expose in this case the present invention includes this rod and with the filter tip completely of outer wrapper attached simultaneously.This filter tip also can be combined with the second overcoat, and this second overcoat is air-locked, and for example, reel in top.
Comprise the vertical passage part with filter tip of (for example, comprising longitudinal ripple) (or each), be referred to as the part of ripple or ripple herein.Do not comprise that the vertical passage part with filter tip of (spreading all over the filter tip cross section) (or each) or a part are referred to as bar or bar part herein.In an example, filter tip according to the present invention comprises corrugated portion and the single center-pole part as filter tip residue total length of one 3 millimeters at each end.This configuration has another advantage, and the amount of for example, filtering material in fuse (, cellulose acetate tow) can reduce, because higher than ripple of the pressure decreased of bar (PD/mm).This configuration also may provide the end appearance of more wishing.
The present invention also provides the method for manufacturing tobacco smoke filter, it comprises provides breathable axially extended fuse, form to surround fuse ventilative material the first overcoat and around encirclement second overcoat of the fuse of parcel, this first overcoat at least limits at least one passage extending longitudinally from upstream extremity with filter tip together with the second overcoat, with at least one passage extending longitudinally from downstream with filter tip, each passage only extends the part of fuse length, thereby at least a portion with filter tip does not comprise longitudinally extending channels, thereby filter tip forms many continuous rods with filter tip, simultaneously thus arrange cutting continuously rod to form single step with filter tip (or a plurality of step, therefore cut end forms upstream extremity with filter tip and downstream with filter tip.
Tobacco smoke filter can comprise nearly 23 passages, preferably between 14 and 20 passages, extending longitudinally from each end (upstream and downstream) of filter tip (to the filter tip of about 25 millimeters circumference).Total cross-sectional area of these passages equal the total cross sections of filter tip long-pending 2 and 12% between, preferably at least 4%, more preferably between 4 and 8%.Therefore, the number of careful control channel (for example,, by controlling the embossing of the first overcoat) and/or the strainability that the degree of depth can provide improvement.This can be by increasing the degree of depth of ripple, preferably with increasing the corrugated surface area possible to smoking, and optionally increases the pitch of ripple-to reduce its number, widen ripple, realizes.For example, according to filter tip of the present invention, may there are 15 passages at each end with filter tip, the pitch of about 0.45 millimeters deep of this passage and about 1.5 millimeters; Another filter tip may have the passage of 0.32 millimeters deep, and number of active lanes (at each end) is 23, and pitch is 1.05 millimeters.The area that filters possible ripple parcel for tobacco smoke in these examples is slightly less than the surface area of total ripple usually, because the peak of ripple is pasting overcoat and therefore do not affecting filter tip usually.
Can be applied to cigarette by conventional method according to filter tip of the present invention, for example install by annular, by narrow paper tape stick on only tobacco rods and filter tip approach end around; In this case, expose the second overcoat.In another situation, cigarette and filter tip can pass through, and for example, additionally reel and combination in top, and this additionally is wound on its whole length and surrounds the second overcoat.
As following example shows, to use according to typical configuration of the present invention, the total length of each bar part with filter tip entirely is in filter tip usually.Therefore, although exist for bar/flute configuration in manufacture process or aim at the possibility of skew a little, a termination, with interior common bar part and corrugated portion, be identical length; Thereby bar/ripple is than keep the constant potential root of eliminating pressure decreased simultaneously.
In addition, because there be a bit (in the end of each passage) of corrugated portion contact lever part in filter tip, this type of high tar with filter tip reduces performance and will keep, as discussed below.
In another example of the present invention, tobacco smoke filter also comprise at least one passage of being limited by the first overcoat and at filter tip extending longitudinally and only extend fuse length a part but not from the filter tip upstream or at least one second overcoat of extending of downstream arbitrary end.In this example of the present invention, tobacco smoke is included in one or several vertical passage (the first corrugated portion) of filter tip upstream extremity; One or several vertical passage (the second corrugated portion) in the filter tip downstream; And other vertical passage in filter tip (other corrugated portion).In this example, there are (a plurality of bar part) a plurality of filter tip parts without vertical passage.This filter tip may have additional have ripple and/or bar zone.
In another example of the present invention, the second overcoat is by color material, and for example chromatics paper, make.
" color material " herein means and is different from white or slightly greyish white color (being different color) material, (for example paper).Filter tip of the present invention comprises the ventilative axially extended fuse of tobacco smoke filtration material.Filter tip is made (or comprising) by white or slightly greyish white tobacco smoke filtering material usually, as cellulose acetate tow.Herein, colored means to have color or color and luster or color, this color be not white or slightly greyish white be not for example the color of cellulose acetate tow, for example, the color contrasted between visual different or color material the second overcoat and the axially extended tobacco smoke filtering material of breathable fuse is provided, for example,, such as colors black, red, yellow, pink, green, orange, brown, purple or blue and/or its different tones.
The applicant once was surprised to find and comprised around first, ripple for example, the color material of the overcoat of ventilative material (this material is colourless or white or the canescence material), chromatics paper for example, the second overcoat the remarkable surprising eye impressions of ripple resolution ratio are provided [this resolution ratio are unexpectedly than when using colored first, ripple for example, more obvious when overcoat and achromatic (white or greyish white) second overcoat].Can use the obvious surprising eye impressions of this ripple resolution ratio as the means of an anti-personation [number of the ripple (vertical passage) of this resolution ratio by changing the first overcoat and/or the degree of depth of ripple (vertical passage) can further be enhanced or change] because with filter tip mouthful or mouthful end it be visible (no matter whether it for cigarette).
Can for example, with the overcoat of another material (it can be,, the extra coiling on top), surround the second colored overcoat, this material can be that white is greyish white or colored, and it can further strengthen visual impression/contrast.
Be appreciated that according to the filter tip of this example and can be applied to cigarette by conventional method as above.
According to the present invention on the other hand, provide tobacco smoke filter to comprise that breathable extends axially fuse (tobacco smoke filtration material), surround the first overcoat of the ventilative material of fuse, and ventilative the second overcoat that surrounds the first overcoat, this first overcoat has longitudinal ripple at least provides passage extending longitudinally with filter tip from one end at least between the first overcoat and the second overcoat, and this second overcoat is color material.
Preferably, passage is extending longitudinally from filter tip mouth end, and the bar that therefore is connected to tobacco-containing material when this filter tip is when forming cigarette, and it is visible that passage (ripple) is held from filter tip mouthful.
Tobacco smoke filter can comprise nearly 23 passages, preferably, between 14 and 20 passages, from this at least one end with filter tip, extends (for the filter tip of about 25 millimeters circumference).Total cross-sectional area of these passages can reach the total cross-sectional area of this filter tip 2 and 12% between, preferably at least 4%, more preferably between 4 and 8%.As discussed above, carefully the number of control channel and/or the degree of depth (for example embossing of the first overcoat by control) can provide the strainability of improvement.In addition, can provide the eye impressions of remarkable surprising passage (ripple) resolution ratio in conjunction with number and the degree of depth of the colored careful control channel of the second overcoat, this can be used as false proof a kind of means.
To illustrate referring to the drawings the present invention in the mode of example now, wherein:
Fig. 1 means the filter tip perspective view not in scale according to an example of the present invention, and part is cutd open;
Fig. 2 is the multistage bar schematic cross-sectional side view of prior art not in scale, means how it is cut to form a plurality of and final single filter tip section.
Fig. 3 is the similar view according to multistage bar of the present invention, means how it is cut to form according to a plurality of and single filter tip section of the present invention, and the relevant potential advantage of eliminating the possible root of pressure decreased variation of the present invention is described; And
Fig. 4 means the perspective view not in scale that the part with filter tip of another example according to the present invention is cutd open.
Comprise the crimped filament fuse 2 of cellulose acetate at the filter tip 1 shown in Fig. 1.These,, by soluble plasticizer, as quercetin, are bonded to each other at its contact point.Immediately surrounding fuse 2 is overcoats 3 (or ripply cellulose acetate) of breathable filter paper, removes circumferential section 6 in the section of middle body or filter tip 7 and spreads all over its total length and longitudinally make this filter paper ripple.This core surface meets the ripple in overcoat 3.Immediately around overcoat 3 and to form passage 5a, 5b with ripple be the non-ripple overcoat of a ventilative paper 4.This fuse and overcoat 3 and 4 spread all over the total length of filter tip 1 and extend.The non-ripple circumferential section 6 that is included in the overcoat 3 in the filter tip middle body mean this part without passage simultaneously passage 5a and 5b not by total length with filter tip.Therefore, filter tip 1 has 7.5 millimeters of one group of length, with filter tip first or the passage 5a (forming between the non-ripple part that corrugated portion and ventilative paper 4 are arranged at overcoat 3) that forms of downstream 9, and with filter tip second or downstream at second group of passage 5b (forming between the non-ripple overcoat of the ripple in overcoat 3 and ventilative paper 4) of 7.5 millimeters of the length of the second end formation; These ripples form ripply part or some ripples at each end 9,11 of filter tip 1.Be formed on non-ripple or the non-wavy bar part (bar) of 6 mm lengths of filter tip central authorities in the non-ripple zone of the overcoat 3 in central circumferential section 6 with filter tip.This bar partial blockage it from the end of each passage of the relative end with filter tip of its extension.This bar part with filter tip does not comprise the passage extending longitudinally that spreads all over the cross section of filter tip 1 along the total length of bar part.
In use, filter tip 11 is connected to cigarette in end, some smog directly enters into fuse 2 and, by the end of filter tip 1, the filament that forms fuse by contact is filtered.In this example, because there is breathable overcoat 4, so the air of dilution also will be inhaled in this filter tip.Smog, together with the diluent air sucked through breathable overcoat 4, also admission passage 5b reaches the smog that non-ripple part 6 is diluted simultaneously and then through after ripply overcoat 3, is entering fuse 2 and going out from filter tip at the other end; Therefore by overcoat 3 with by fuse 2, the two filters this smog.Should be appreciated that, also can use with together with the overcoat of non-ventilation according to filter tip of the present invention, do not have in this case the air of dilution to be drawn in filter tip through overcoat.
Filter tip 1 can fill or extra coiling the in top is connected to cigarette by circular top, for example, and well-known in the industry method.Should be appreciated that, can be with well-known other material in industry to form fuse 2, and overcoat 3,4.
Fig. 2 means multistage bar 51 with filter tip in prior art.This bar 51 is by filter cartridge and two filter tip overcoats, and an inner sleeve and an overcoat (not shown) form.This multistage filter rod well-known technique in industry is made.Therefore known device is fed to adjunct by the filaments bundles of the curling plasticising of cellulose acetate.They are wrapped up by the belt of ripply cellulose acetate or paper like this.Filament (or paper) bundle by sending curling plasticising to has trough roller formation arrowband to steam unit and from there to the heating of the non-embossed area with short longitudinal separation.Therefore inner ring is exactly the ground floor of ventilative material, and is subject to embossed thereby forms groove along the regular sections of its length.Before sending adjunct to, therefore then it is by vertically parcel is to surround this bundle for the belt of adjustable guide positions inner ring, and the opposite edges of interior astragal are by adjacency.From bobbin, the belt of paper (the second overcoat) is introduced the bonding printing equipment, this device for its binding agent cross span is placed in appropriate location on belt like this when the paper tape of the ripply cellulose acetate (or paper) of inner ring and the second overcoat when adjunct contacts, the line of binding material contacts the non-embossed area that ripple cellulose acetate (paper) belt is arranged of inner ring.This adhering device also applies binding agent and introduces adjunct and wrap up filament and the band period of the day from 11 p.m. to 1 a.m of inner ring when the paper tape of the second overcoat like this, and the overlap joint edge of the paper tape of the second overcoat is sealed in a known way by heater.Guide is located paper tape in correct mode.Therefore, the continuous lever be comprised of filter cartridge and two filter tip overcoats, inner ring and outer ring is configured, this continuous lever is divided into multistage bar 51 through cutting off, and as shown in Figure 2, each of this bar section will be connected to a plurality of sections with filter tip of the finished product of aspirate exactly.The multistage bar 51 of producing like this includes the multistage of groove inner ring (" ripple ") 52 and the multistage of slotless inner ring (" bar ") 53,54.(use well-known in the industry technology) at the cutting multistage bar 51 in the zone of ripple 52 and bar 54 by shown in arrow 55 in the middle of manufacture process to provide four filter tips, the form of each is single ripple is at one end arranged and to be bar at the other end.Each end with filter tip will have by ripple, caused groove end profile arranged, and the other end will have slotless or the blank shape caused due to bar.If wish that the Novel end profile can be by there being the groove end to be placed on filter tip mouthful of end, if or wish traditional end appearance be placed on tobacco end.
At 21 millimeters filter tip ends, have in the production run of pole length of the corrugation length of specific 15 millimeters and specific 6 millimeters, filter tip is produced into the continuous lever with 30 millimeters ripples 52 and 12 millimeters bars 54.The character that this continuous lever cuts into limited section while large-scale production process is the possibility that exists bar/flute configuration to be offset a little with respect to cutter sweep.If this occurs, just there is the possibility of cutting in undesirable place, directly cut the centre at ripple or bar.Therefore, if there is adding deduct the skew of 1 millimeter, the specified configuration that 15 millimeters ripples that require add 6 millimeters bars just may add 5 millimeters bars and 14 millimeters ripples at 16 millimeters ripples and add between 7 millimeters bars and change.The pressure decreased (PD-mm) of the millimeter with water of bar part will be much larger than the PD-mm that corrugated portion is arranged, so the variation that requires length of filter tip king-rod and ripple has the possibility that causes the PD rate of change; The spike PD once seen in test between 77 to 90 millimeters changes.The bottom of Fig. 2 means if multistage bar 51 is displaced to the position shown in bar 51a (and, in the position by shown in arrow 55 cutting, this just is set in the actual position cutter bar of corresponding bar 51), in each cutting ripple and bar the number may from require different.
Fig. 3 for example means, according to multistage bar 61 with filter tip of the present invention (according to Fig. 1 filter tip).This bar 61 also is comprised of filter cartridge and two filter tip overcoats, an inner ring and an outer ring.This inner ring is processed through embossing, thereby forms groove along the regular sections of its length.These techniques are that the well-known while is as the description with reference to above Fig. 2 in the industry.Multistage bar 61 comprises that multistage has the inner ring (" bar ") 62 of inner ring (" ripple ") 63,63a and 63b and the multistage slotless of groove.The length of each bar part 62 is that 6 millimeters length with each corrugated portion 63 are 15 millimeters.Manufacturing Cheng Dangzhong (well-known technology in using industry), according to example of the present invention, multistage bar 61 is cut to provide four filter tips by the zone shown in arrow 65 through ripple 63, and each is configured at the ripple of each end and the bar between two ripples 62.
In the production run had in the filter tip of 21 millimeters of the particular shaft length of the specific corrugation length of 7.5 millimeters, arbitrary end and 6 millimeters, such as those, with reference to described shown in Fig. 1 and Fig. 1, this filter tip will be produced with the continuous rod of 15 millimeters ripples and 6 millimeters bars.This continuous lever is cut into to limited section.Skew a little if there is bar/flute configuration with respect to cutter sweep, even if cutting may not be desired, directly in the centre of ripple, usually filter tip with interior will be the equal length of ripple and bar.Therefore, Fig. 3 a means desirable schematic diagram with filter tip, and this filter tip has two ripples (5a, 5b) of 7.5 mm lengths that the bar 6 by 6 mm lengths separates.If the skew appearance, for example, configuration may be as shown in Fig. 3 b.It comprises the ripple 5e of 6 millimeters and the ripple 5f of 9 millimeters separated by the bar 6g of 6 millimeters; This total bar ripple with filter tip is than keep the constant possible root that PD changes of eliminating simultaneously.
In the filter tip shown in Fig. 4, filter tip 101 comprises the fuse 102 of the crimped filaments of cellulose acetate.By the plasticizer dissolved, as glycerol triacetate, at its contact point, they are bonded to each other.Immediately surrounding fuse 102 is overcoats 103 of ventilative filter paper, and this overcoat is removed two circumferential sections 106,106a spreads all over longitudinally ripple of its whole length outward.The surface of this fuse meets the ripple in overcoat 103.Immediately around overcoat 103 and form path 10 5a, 105b together with ripple, 105c is the non-ripple overcoat of a ventilative paper 104.This fuse and overcoat 103 and 104 spread all over the total length of filter tip 1 and extend.Filter tip comprise non-ripple circumferential section 106, the 106a of overcoat 103 mean in these parts, do not exist passage simultaneously this passage without total length with filter tip.Therefore the path 10 5a that filter tip 1 has one group of 3.75 millimeters long, at the filter tip first end, or downstream 109 (the forming between the non-ripple part overcoat of the ripple of overcoat 103 and ventilative paper 104) that form, and at the second end with filter tip second or the second channel 105b of 3.75 millimeters long of upstream extremity 111 (forming between the non-ripple overcoat of the ripple of overcoat 103 and ventilative paper 104); These ripples form the corrugated portion at each end 109,111 place of filter tip 101.There is the 3rd group of path 10 5c (forming) of 7.5 mm lengths between the non-ripple overcoat of the ripple of overcoat 103 and ventilative paper 104 in central authorities with filter tip.In circumferential section 106,106a, the non-ripple zone of overcoat 103 is formed on non-ripple or the non-ripple bar part (being separated by the 3rd group of path 10 5c) of two 3 millimeters long between two ends with filter tip.The end of its each passage is close in this bar partial blockage.Bar part with filter tip does not comprise the cross section passage extending longitudinally that spreads all over whole filter tip 101 along the total length of bar part.
For example, can use the example of Fig. 4, wish to place another ripple area (105c) when wherein filter tip is ventilation below ventilation zone.
Should be appreciated that, the filter tip 101 of Fig. 4 is symmetrical (as Fig. 1's).The technical staff should be appreciated that, unsaturated mercury discharge lamp is possible, and in scope of the present invention.For example, the filter tip of 21 mm lengths that is similar to 11 millimeters ripples that have 5 millimeters ripples and separated by 5 millimeters bars of Fig. 1 is another examples of the present invention.
(not shown) in another example of the present invention, more than be similar to the overcoat that non-ripple overcoat that the filter tip shown in Fig. 1 has blue look ventilative paper 504 replaces ventilative paper 4.This just is provided at the surprising obvious eye impressions of the resolution ratio of filter tip mouth end place ripple.Be similar to the overcoat that non-ripple overcoat that the filter tip shown in Fig. 4 has the ventilative paper 504 of redness replaces ventilative paper 104 more than (not shown) in another example of the present invention.Here it is provides surprising obviously the looking in the ripple resolution ratio at filter tip mouth end place
The feel impression.
Another example
Produce three kinds of different cigarette filter tip designs.Two kinds [comparison example A and B] wherein are for example, according to prior art (the method manufacture of being described by reference Fig. 2), nominally wherein in the middle of ripple and bar zone, cut filter tip.The third filter tip pattern (example C) for example is, according to (method of being described by reference Fig. 3 is manufactured) of the present invention.The filter tips of comparison example A and B has the configuration that 4 millimeters bars add 5 millimeters ripples, and the filter tip of example C is identical overall length size, but is configured to 2.5 millimeters ripple+4 millimeter bars+2.5 millimeters ripples.
After manufacturing, carry out single cutting along the overcoat length of each filter tip, inner ring is carefully removed in termination simultaneously.Measure the length in the filter tip king-rod zone of each design.In this way measure 20 terminations of each design and the result obtained be summarized as follows:
Can find out, the present invention has eliminated the mutability in the pole length of measuring.
Claims (14)
1.
a kind of tobacco smoke filter comprises:
the axially extended fuse of breathable,
be centered around first overcoat of ventilative material of the circumferential surface of fuse, and
around the second overcoat of the first overcoat,
this first overcoat at least limits at least one passage extending longitudinally from upstream extremity with filter tip and passage that at least one is extending longitudinally from the filter tip downstream together with the second overcoat, each passage only extends the part of fuse length, and wherein at least a portion between the filter tip passage extending longitudinally at upstream extremity and downstream passage extending longitudinally is not for comprising the bar part of the passage extending longitudinally that spreads all over the filter tip cross section.
2.
according to the filter tip of claim 1, wherein the length of each passage is 2 millimeters or larger.
3.
according to the filter tip of claim 1, wherein the length of each passage is between 2.5 millimeters and 23 millimeters.
4.
according to claim 1,2 or 3 filter tip, wherein the first overcoat has ripple extending longitudinally, this ripple at least limits passage extending longitudinally together with the second overcoat, at least one passage extending longitudinally from the filter tip upstream extremity is closed or blocks at an end of the passage away from the filter tip upstream extremity, and at least one passage extending longitudinally is closed or blocks at an end of the passage away from the filter tip downstream from the filter tip downstream.
5.
according to any one the filter tip in claim 1-3, also comprise another passage that at least one is limited by the first overcoat and at least the second overcoat, another passage filter tip extending longitudinally only extends the part of fuse length simultaneously, but from any end of upstream with filter tip or downstream, does not extend.
6.
according to any one the filter tip in claim 1-3, comprise nearly 23 passages extending longitudinally from this each end with filter tip, total cross-sectional area of these passages equal the total cross-sectional area of this filter tip 2% and 12% between.
7.
according to the filter tip of claim 6, be included in the vertical passage of each end of filter tip, this passage is at least 4% of total filter tip cross-sectional area.
8.
according to any one the filter tip in claim 1-3, wherein the second overcoat is breathable.
9.
according to the filter tip of any one in claims 1 to 3, wherein the second overcoat is air-locked.
10.
according to any one the filter tip in claim 1-3, wherein the second overcoat is color material.
11.
a kind of filter-tip, comprise the filter tip according to any aforementioned claim, and it at one end is attached to the tobacco rods of parcel.
12.
a kind of method of manufacturing tobacco smoke filter, the method comprises:
provide breathable axially extended fuse,
form the first overcoat of the ventilative material that surrounds this fuse, and
wrap up the second overcoat around the first overcoat,
this first overcoat at least limits at least one passage extending longitudinally from the filter tip upstream extremity and passage that at least one is extending longitudinally from the filter tip downstream together with the second overcoat, each passage only extends a part of fuse length, wherein at least a portion between the filter tip passage extending longitudinally at upstream extremity and downstream passage extending longitudinally is not for comprising the bar part of the passage extending longitudinally that spreads all over the filter tip cross section, wherein this filter tip is constituted as a plurality of continuous levers with filter tip, wherein arrange the cutting continuous lever to form single step with filter tip simultaneously, the end so respectively cut out forms respectively single upstream extremity with filter tip and downstream.
13.
tobacco smoke filter comprises:
the axially extended fuse of breathable,
surround the first overcoat of the ventilative material of this fuse, and
surround first overcoat breathable the second overcoat,
this first overcoat have ripple extending longitudinally and thereby the passage with filter tip extending longitudinally from its at least one end between the first overcoat and the second overcoat at least is provided, each passage only extends a part of fuse length, wherein at least a portion between the filter tip passage extending longitudinally at upstream extremity and downstream passage extending longitudinally does not comprise the bar part of the passage extending longitudinally that spreads all over the filter tip cross section, and this second overcoat is made by color material.
14.
a kind of filter-tip, comprise the filter tip according to claim 13, and it at one end is attached to the tobacco rods of parcel.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0610144.8 | 2006-05-22 | ||
| GB0610144A GB0610144D0 (en) | 2006-05-22 | 2006-05-22 | Tobacco smoke filter |
| GB0622812A GB0622812D0 (en) | 2006-11-15 | 2006-11-15 | Tobacco smoke filter |
| GB0622812.6 | 2006-11-15 | ||
| PCT/GB2007/001880 WO2007135414A1 (en) | 2006-05-22 | 2007-05-21 | Tobacco smoke filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101448416A CN101448416A (en) | 2009-06-03 |
| CN101448416B true CN101448416B (en) | 2013-12-25 |
Family
ID=36660621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780018507.8A Active CN101448416B (en) | 2006-05-22 | 2007-05-21 | Tobacco smoke filter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101448416B (en) |
| GB (1) | GB0610144D0 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210487A (en) * | 2011-04-13 | 2011-10-12 | 南通烟滤嘴有限责任公司 | Double-cavity section type cigarette filter tip |
| GB201311079D0 (en) * | 2013-06-21 | 2013-08-07 | British American Tobacco Co | A method of fabricating a filter element |
| GB201720490D0 (en) * | 2017-12-08 | 2018-01-24 | Essentra Filter Products Dev Co Pte Ltd | Tobacco smoke filter |
| GB202116870D0 (en) * | 2021-11-23 | 2022-01-05 | Essentra Filter Products Dev Co Pte Ltd | Paper filter |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2118424A (en) * | 1982-04-07 | 1983-11-02 | Filtrona Ltd | Tobacco smoke filter |
| US4488563A (en) * | 1982-04-29 | 1984-12-18 | Mitsubishi Acetate Co., Ltd. | Filter plug |
| GB2095093B (en) * | 1981-03-19 | 1984-12-19 | Brown & Williamson Tobacco | Tobacco smoke filters |
| EP0099225B1 (en) * | 1982-07-07 | 1986-05-28 | Mitsubishi Acetate Co., Ltd. | Tobacco smoke filter and process to produce same |
| US4608999A (en) * | 1980-12-01 | 1986-09-02 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| US4687009A (en) * | 1986-02-24 | 1987-08-18 | Philip Morris Incorporated | Adjustable filter cigarette and method of manufacture thereof |
| US5178166A (en) * | 1990-09-20 | 1993-01-12 | Philip Morris Incorporated | Filter cigarette |
| DE29922719U1 (en) * | 1998-12-23 | 2000-03-16 | Benkhardt, Axel, 22587 Hamburg | Cigarette, cigar or cigarillo and packaging therefor |
| DE10020303A1 (en) * | 2000-04-17 | 2002-03-21 | Jiangling Zhu | A cigarette consists of a paper which comes in a variety of colors, and contains additives that color the smoke given off |
| CN2586368Y (en) * | 2002-10-16 | 2003-11-19 | 上海白玉兰烟草材料有限公司 | Corrugation filtering rod |
| WO2004014162A1 (en) * | 2002-08-08 | 2004-02-19 | Susilo Wonowidjoyo | Method for producing filter cigarettes |
-
2006
- 2006-05-22 GB GB0610144A patent/GB0610144D0/en not_active Ceased
-
2007
- 2007-05-21 CN CN200780018507.8A patent/CN101448416B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4608999A (en) * | 1980-12-01 | 1986-09-02 | Brown & Williamson Tobacco Corporation | Cigarette filter |
| GB2095093B (en) * | 1981-03-19 | 1984-12-19 | Brown & Williamson Tobacco | Tobacco smoke filters |
| GB2118424A (en) * | 1982-04-07 | 1983-11-02 | Filtrona Ltd | Tobacco smoke filter |
| US4488563A (en) * | 1982-04-29 | 1984-12-18 | Mitsubishi Acetate Co., Ltd. | Filter plug |
| EP0099225B1 (en) * | 1982-07-07 | 1986-05-28 | Mitsubishi Acetate Co., Ltd. | Tobacco smoke filter and process to produce same |
| US4687009A (en) * | 1986-02-24 | 1987-08-18 | Philip Morris Incorporated | Adjustable filter cigarette and method of manufacture thereof |
| US5178166A (en) * | 1990-09-20 | 1993-01-12 | Philip Morris Incorporated | Filter cigarette |
| DE29922719U1 (en) * | 1998-12-23 | 2000-03-16 | Benkhardt, Axel, 22587 Hamburg | Cigarette, cigar or cigarillo and packaging therefor |
| DE10020303A1 (en) * | 2000-04-17 | 2002-03-21 | Jiangling Zhu | A cigarette consists of a paper which comes in a variety of colors, and contains additives that color the smoke given off |
| WO2004014162A1 (en) * | 2002-08-08 | 2004-02-19 | Susilo Wonowidjoyo | Method for producing filter cigarettes |
| CN2586368Y (en) * | 2002-10-16 | 2003-11-19 | 上海白玉兰烟草材料有限公司 | Corrugation filtering rod |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0610144D0 (en) | 2006-06-28 |
| CN101448416A (en) | 2009-06-03 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Address after: Oxfordshire Patentee after: Yishenghua International Co.,Ltd. Address before: Buckinghamshire Patentee before: FILTRONA INTERNATIONAL LTD. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20230420 Address after: Singapore, Singapore Patentee after: ESSENTRA FILTER PRODUCTS DEVELOPMENT CO. Pte. Ltd. Address before: Oxfordshire Patentee before: Yishenghua International Co.,Ltd. |
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| TR01 | Transfer of patent right |