CN103476278A - Tobacco smoke filter - Google Patents

Tobacco smoke filter Download PDF

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Publication number
CN103476278A
CN103476278A CN2012800134325A CN201280013432A CN103476278A CN 103476278 A CN103476278 A CN 103476278A CN 2012800134325 A CN2012800134325 A CN 2012800134325A CN 201280013432 A CN201280013432 A CN 201280013432A CN 103476278 A CN103476278 A CN 103476278A
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CN
China
Prior art keywords
downstream
core
extending longitudinally
thing
filter
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Granted
Application number
CN2012800134325A
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Chinese (zh)
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CN103476278B (en
Inventor
R.P.莫里斯
A.F.利桑
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Filtrona International Ltd
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Filtrona International Ltd
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Publication of CN103476278A publication Critical patent/CN103476278A/en
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Publication of CN103476278B publication Critical patent/CN103476278B/en
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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
    • 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
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00—Cigars; Cigarettes
    • A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
    • A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0279—Manufacture of tobacco smoke filters for filters with special features with tubes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A tobacco smoke filter or filter element comprises a longitudinally extending core which includes tobacco smoke filtering material, and an outer wrapper engaged around the longitudinal extending core, wherein the longitudinally extending core includes one or more channels extending longitudinally upstream from the downstream end of the core, and the downstream end of the outer wrapper extends beyond the downstream end of the core around which is engaged to define a cavity at the downstream end of the filter.

Description

Tobacco smog filte r
Technical field
The present invention relates to filter and filter element for the smoking product such as cigarette.
Background technology
Day by day wishing provides distinctive end outward appearance for cigarette.Cigarette forgery is a subject matter, and is an important channel of preventing the forgery of this brand for the cigarette brand forms distinctive and/or distinguished outward appearance.In addition, the advertisement to cigarette day by day increased and the restriction of packing mean one of the outward appearance of cigarette minority approach that to be the cigarette producers product that can make them distinguish mutually with the product of other manufacturers.For providing distinctive end outward appearance, cigarette filter can help to realize these targets.
Recessed filter is known in tobacco industry, and provides the means that form unique end outward appearance for cigarette.The interval that they generally flow to separate by the filter sections by continuous is wrapped in relatively hard formed package paper (plug wrap paper) and manufactures.By cutting filter stream in the zone existing without filter element, can obtain recessed filter---hard formed package paper provides enough rigidity so that the cigarette finished product can be manufactured and be used and the exposure paper end of the filter of can not crushing.Recessed filter can be incorporated to one, two or more (for example fiber) filter sections.When using two or more sections, these sections will generally belong to different filter configurations---for example by different filtering materials, form or carry different additive (such as spices or adsorbent).
The extrusion plastic end that cigarette filter is used is also known, referring to for example US3396733.These provide another approach that forms characteristic end outward appearance for cigarette.These ends have the hollow inside body with a plurality of radial support flanks usually.This type of end can be used as downstream or the mouth end sections of multi-segmental filter, and is commonly called SPF (shaping plastic filter).
The another means that the cigarette filter of distinctive type is provided are for example at the CPA from Filtrona of WO 2007/135414 illustrated filter.These have been incorporated to the filter body be wrapped in papery inner sleeve a part of embossing of its length (along), and then this inner sleeve is encapsulated in conventional external formed package thing (plugwrap).When filter cuts in this zone, the inner sleeve of embossing forms the plough groove type outward appearance.When the mouth end at filter is used, it is distinctive end outward appearance for cigarette forms.Can use such filter as single integral product or as the sections in the multi-segmental filter.
Need to be difficult to the more distinctive end outward appearance of forging for filter provides.
Summary of the invention
According to the present invention, a kind of tobacco smog filte r (or filter element) is provided, it comprises: (for example, cylindricality) core extending longitudinally, it comprises tobacco smoke filtration material; And be bonded on the outer packaging thing around core extending longitudinally; Wherein core extending longitudinally is included in upstream one or more passages extending longitudinally of the downstream of core; And wherein the downstream of outer packaging thing extend beyond its around the downstream of the core engaged, limit (for example, tubulose) cavity with the downstream at filter.Extend beyond its can limit cavity or recess, for example tubular cavity/recess in the downstream of recessed filter (for example, with together with the downstream of core extending longitudinally) around the inner radial surface of the outer packaging thing of the downstream of the core engaged.
The combination of the downstream (mouth end) of the filter of (one or more) viewability channel that recessed filter and the upstream that is included in the core downstream are extending longitudinally provides and has been difficult to the very characteristic end outward appearance of forging.
In one example, core extending longitudinally comprises the hollow tube of tobacco smoke filtration material.Tobacco smoke filtration material can be for example cellulose acetate filtering material.The cross section of hollow tube (with therefore passage) can be circular or non-circular.One or more walls of the hollow tube of circle or noncircular cross section define the passage extending longitudinally in the upstream of core downstream.This passage can not extend along the total length of core usually.Can expect that the filter of these types will cause the organoleptic attribute of improvement and cooler smog, because mixing and the guiding that can before entering smoker's maxilla, control in tubular segment and therefore enter the smog stream in recessed end.
According to an aspect of the present invention, provide a kind of tobacco smog filte r (or filter element), it comprises: (for example, cylindricality) core extending longitudinally, and it comprises tobacco smoke filtration material; And be bonded on the outer packaging thing around core extending longitudinally;
Wherein, core extending longitudinally comprises that downstream components (for example, the downstream sections), this downstream components comprises pipe extending longitudinally, it inwardly (for example has substantially, radially inside) extend to a plurality of flanks that separate of inside body extending longitudinally, flank (for example,, between flank) betwixt limits (a plurality of) longitudinally extending channels;
And wherein, the downstream of outer packaging thing extend beyond its around the downstream of the core engaged the downstream of downstream components (and extend beyond), limit (for example, tubulose) cavity with the downstream at filter.
Extend beyond its limit cavity or recess, for example tubular cavity/recess around the inner radial surface of the outer packaging thing of the downstream of the core engaged in the downstream of recessed filter (for example,, with together with the downstream of core extending longitudinally).
The downstream components of core extending longitudinally (downstream sections) comprises pipe extending longitudinally, it inwardly (for example has substantially, radially inside) extend to a plurality of flanks that separate of inside body extending longitudinally, flank (for example,, between flank) betwixt limits (a plurality of) longitudinally extending channels.Inside body can be hollow (for example, tubulose) inside body, and the inwall of this hollow inside body limits another longitudinally extending channels.Downstream components [for example, pipe extending longitudinally, the flank separated and (for example, hollow) inside body] can for example be integrally formed as discrete component by extruding.Downstream components can be made by extrudable any thermoplastic, for example LDPE.Downstream components can be made by degradable polymer.Downstream components can contain color or the shade of pigment to give expectation.This pigment can form with the color of filtering material contrast (for example, can contrast with white or cream-coloured formation).Downstream components can belong to any indoor design, and for example, the inner passage of band supporting flank, for example, as in Britain design application No.4017159 illustrated.
Core extending longitudinally can comprise one or more (for example, 1,2,3 or 4) add ons (one or more sections), it comprises (upstream that is positioned at the upstream extremity of downstream components) tobacco smoke filtration material.Tobacco smoke filtration material for example can be any of conventional those materials of manufacturing for tobacco smog filte r (being generally thread, fiber, fabric or extruded material).Filtering material can be natural or synthetic thread tow, for example cotton or such as polyethylene or polyacrylic plastics, or cellulose acetate filamentous tow.It can be for example natural or synthetic staple, velveteen, for example, such as the textile material of paper (being generally crape) and synthetic nonwoven and extruded material (, starch, synthetic foam).
The filtration device structure that becomes known for any type of cigarette filter can be used in these add ons (additional sections), for example, " wrapped acetate fiber ", " not wrapped acetate fiber ", " acetate fiber of random orientation ", " cellulose acetate " or " active acetate fiber ".Can be in downstream the upstream of (for example, " SPF ") element use (preferably different qualities) element of any amount, for example, 1,2,3 or 4 sections.In the situation that exist two or more to comprise the add ons of tobacco smoke filtration material, these add ons preferably have different filtering features, for example cellulose acetate sections and " active acetate fiber " sections.
Be applicable to (for example, the particulate) additive material (for example, activated carbon) in cigarette filter and/or can comprise the spices such as menthol one or more the comprising in add ons.
Additive material can be particulate additives.Particulate additives can be any particulate additives that is applicable to tobacco smog filte r---for example activated carbon, zeolite, ion exchange resin (for example, weak-base anion-exchange resin), sepiolite, silica gel, aluminium oxide, molecular sieve, carbon containing fluoropolymer resin and diatomite.Particulate additives can be the mixture of two or more materials.Additive can comprise spices---for example, menthol---for example, additive can be the sepiolite grain that is applied with menthol.For example, if the core extending longitudinally of tobacco smoke filtration material comprises that the full envelope that is embedded into wherein (, embedding) additive bag (a plurality of), additive can be the particulate additives such as activated carbon (referring to above), it for example is encapsulated in filtering material as discrete pockets or the pod of particulate additives particle, and particulate additives is basically separated and entirely is encapsulated in filtering material with filtering material.In another example, full envelope (for example, embedding) additive bag (a plurality of) can be one or more fragility capsules or one or more fragility microcapsules.(a plurality of) capsule or (a plurality of) microcapsules can comprise medium---for example spices and/or liquid, solid or other material, and for example, to assist smog to filter.The use of capsule or microcapsules is known in the art.
Described (or one) add ons can comprise cellulose acetate filtering material cylindrical plag extending longitudinally.Cellulose acetate filtering material cylindrical plag extending longitudinally also can comprise the packing material for example formed by porous or non-porous formed package thing.This type of wrapped filter/element is called " wrapped acetate fiber " filter or filter element.
Described (or one) add ons can comprise cellulose acetate filtering material cylindrical plag extending longitudinally, and it also comprises optionally the particulate additives with the packing material for example formed by porous or non-porous formed package thing.This type of filter/element is called " active acetate fiber " filter or filter element.
Described (or the one) add ons that comprises tobacco smoke filtration material can comprise bar-shaped tobacco smoke filtration material core, it (for example has full envelope, embedding) (one or at least one) bag of additive (for example, particulate additives) in the inner.The bar-shaped core of tobacco smoke filtration material optionally has the extra packing material (for example, porous or non-porous) be bonded on around bar-shaped core.In the tobacco smoke filtration material core, provide full envelope additive bag to there is following effect: the second end of additive and core spaced apart (because having tobacco smoke filtration material between the end of additive bag and core).Comprise and (for example there is full envelope, the core single extending longitudinally of the tobacco smoke filtration material of the bar-shaped core of tobacco smoke filtration material of the bag of embedding) in the inner one (or at least one) additive (for example, particulate additives) can for example be manufactured by the methods and apparatus disclosed in WO 2006/059134.
Described (or the one) add ons that comprises tobacco smoke filtration material can comprise the bar-shaped core of tobacco smoke filtration material and (for example be bonded on bar-shaped core band additive on every side, particulate additives) packing material, with the additive packing thing have be attached to the one or more parts of its inner radial surface additive (for example, particulate additives), wherein said do not have additive in the downstream of core around its periphery with the additive packing thing.In the downstream with the additive packing thing, do not exist additive to there is following effect: the downstream of additive and core spaced apart (on the packing material because of the second end place at core, there is no additive).Preferably, do not there is additive at downstream and the two ends, upstream of core around its periphery with the additive packing thing.The core extending longitudinally of tobacco smoke filtration material can be as disclosed filter element in GB 2261152, this core extending longitudinally comprises the bar-shaped core of tobacco smoke filtration material and is bonded on bar-shaped core band additive (for example, particulate additives) packing material on every side.With the additive packing thing, can be porous or non-porous.
Tobacco smog filte r can grow 15 to 40mm, and for example 17 to 35mm, and for example 20 to 30mm.The recessed section of filter (, the downstream of outer packaging thing extend beyond its around the downstream of the core engaged with the downstream at filter (for example, mouth) end limits that segment length of cavity) can grow 3 to 10mm, and most preferably grow 4 to 6mm.Core extending longitudinally (any add ons that comprises downstream components and comprise tobacco smoke filtration material) can grow 10 to 30mm, and for example 14 to 27mm, and for example 17 to 25mm.The girth of tobacco smog filte r can be 14 to 28mm, and for example 16 to 26mm, and for example 16 to 17mm or 24 to 25mm.Finished product filtering type cigarette can be ventilation or nonventilated, and has traditionally any girth scope (for example, girth c. 14 to c. 28mm) for smoking.
The outer packaging thing can be paper, for example formed package paper, for example hard formed package paper.The outer packaging thing can be porous or non-porous.The outer packaging thing can be basic weight approximately 40 to about 120g/m 2paper.The basic weight of outer packaging thing can be approximately 80 to about 120g/m 2, for example basic weight is about 100g/m 2, for example, for the recessed filter of standard (c. 24 is to 25mm) girth.For example, for very thin or super very thin recessed filter (, carefully to Zhou Changyue 16 to 17mm), the outer packaging thing can be for example about 50g/m of low basic weight 2formed package paper.To understand, and also can the connecting shaping wrapping paper use and more fight recklessly dress (tipping) paper so that the rigidity of expectation to be provided to the recessed filter type cigarette of finished product.
In recessed filter structure,---rather than at it rotine positioning at Filter mouth end place---used and for example by extruding, (for example is formed integrally as discrete component, " SPF sections ") downstream components [for example, pipe extending longitudinally, the flank separated and (for example, hollow) inside body] overcome in the situation that smoker's tongue and nozzle part directly contact any discomfort that " plastic sense " of cigarette brings.It also provides preferred " mouthfeel " for cigarette, because the recessed end that recessed end is not associated with rigidity plastics mouth part is so hard.Recess and downstream components (SPF sections) also mean that in the combination of Filter mouth end the pollution of filter end in fact can be not apparent to the smoker.Can expect that the filter of these types will cause the organoleptic attribute of improvement and cooler smog, because mixing and the guiding that can before entering smoker's maxilla, control in tubular segment and therefore enter the smog stream in recessed end.
According to a further aspect in the invention, provide a kind of tobacco smog filte r (or filter element), it comprises: (for example, cylindricality) core extending longitudinally comprises tobacco smoke filtration material; And be bonded on the outer packaging thing around core extending longitudinally.
Wherein, core extending longitudinally comprises: downstream components, and it comprises extending longitudinally (for example, cylindricality) tobacco smoke filtration material downstream core; Be bonded on downstream core the first interior packing thing on every side; And optionally be bonded on the second interior packing thing around the first packing material; The first packing material (for example has abnormal shape (profiled), corrugated) outer surface, this outer surface limits at least one longitudinally extending channels [for example, the downstream of downstream core upstream at least one longitudinally extending channels extending longitudinally] together with the second interior packing thing or outer packaging thing;
And wherein, the downstream of the downstream of outer packaging thing and/or the first interior packing thing extend beyond its around the downstream of the core engaged, limit (for example, tubulose) cavity with the downstream at filter.Extend beyond its can be in the downstream of recessed filter (for example around the inner radial surface of the inner radial surface of the outer packaging thing of the downstream of the core engaged or the first interior packing thing, with together with the downstream/downstream core of core extending longitudinally) limit cavity or recess, for example tubular cavity/recess.The first interior packing thing can be formed by ventilative or air-locked material.Preferably, it is breathed freely.The second interior packing thing (if existence) can be formed by ventilative or air-locked material.
Described (or each) passage can be extending longitudinally in the upstream of downstream core downstream.Preferably, described or each passage only extends along a part of length of downstream core.Described or each passage will preferably have the basically identical degree of depth on its longitudinal extent, but can have variation, for example, in the situation that passage approaches closing end.
Described (or each) passage can (alternatively or in addition) (in recess area) extending longitudinally in the downstream of downstream core downstream.
The first packing material can be for example for example, sheet material with abnormal shape (, corrugated) surface, the special-shaped surfaces parcel of this sheet material quilt cover to outside packing material or the second packing material.The first packing material (for example preferably has vertically, the ripple axially) extended, it at least limits (a plurality of) longitudinally extending channels together with the second packing material or outer packaging thing---and for example, its downstream in downstream core (upstream) is extending longitudinally.Each passage can be by the first packing material ripple away from this passage, the end from the downstream of the downstream core of its extension is closed or stops up to provide.The first packing material is corrugated on two surfaces, and can with limit longitudinally extending channels together with downstream core and together with the second packing material or outer packaging thing.Yet the downstream core surface wrapped into can conform to the corrugated inner surface of the first packing material, thereby only between the first interior packing thing and the second interior packing thing or outer packaging thing, stay passage.
That (or the each) part that comprises vertical passage (for example, it comprises ripple) of downstream core is called groove or trench portions in the text.(on the core section) of downstream core do not comprise that (or each) part of vertical passage is called rod or excellent part in the text.To understand, of the present invention aspect this in, in the downstream of downstream core (being recessed into), will there be trench portions in end, to provide---together with recess---distinctive end outward appearance.Can there is another trench portions in the upstream of downstream core (non-re-entrant end).In one example, downstream core is included in the 3mm trench portions of each end and as the single center bar part of the whole length of residue of downstream core.This configuration can have following attendant advantages: can reduce the amount of the filtering material (for example, cellulose acetate tow) in downstream core, because the pressure drop (PD/mm) of rod is higher than the pressure drop of groove.
This aspect of the present invention can provide recess at mouth (downstream) end, plough groove type or " CPA " element (sections) are arranged in the positive upstream of this recess, wherein (a plurality of) vertical passage or (a plurality of) groove surface to the mouth end to form more distinctive end outward appearance.Can there be one or more additional filtering material elements (sections) in the upstream of CPA sections, as hereinafter discussed more in detail.Be positioned at the CPA sections more any filter sections of upstream will preferably there is the filtering feature different from the CPA sections, for example, be incorporated to particulate additives and/or spices.
Downstream core can comprise nearly 23 passages, preferably between 14 and 20 passages, [for example, (for the filter of Zhou Changyue 25mm) extending longitudinally in the upstream of core downstream].Total cross-sectional area of these passages can reach the total cross-sectional area of filter 2% and 12% between, preferably at least 4%, more preferably between 4% and 8%.Therefore, can provide the strainability of improvement to the careful control (for example,, by the controlled embossing of the first packing material) of quantity and/or the degree of depth of passage.This can be by preferably increasing along with the surface area of the ripple that can be used for smog and optionally together with the increase---that is, ripple reduces and widens with its quantity---of ripple pitch, the degree of depth that increases ripple realizes.For example, can there are 15 passages in its pitch with about 1.5mm of downstream of downstream core, the dark about 0.45mm of passage according to filter of the present invention; Another filter can have the passage that 0.32mm is dark, and the quantity of passage is 23, and pitch is 1.05mm.The area that can be used for the corrugated packing material that smog filters is usually smaller than general waviness shape surface area in these examples, because the crest of ripple usually will lean against on the outer packaging thing and be therefore invalid to filter.
The first packing material can be limited to the upstream of downstream of downstream core at least one passage extending longitudinally and at downstream at least one passage extending longitudinally of the upstream extremity of downstream core together with the second interior packing thing or outer packaging thing, each passage only extends along the part of downstream core length, and wherein at least one part of downstream core does not comprise longitudinally extending channels.
Preferably, the length of each passage is 2mm or larger, preferably between 2.5mm and 23mm, more preferably between 3mm and 15mm, more preferably between 3.5mm and 9mm.The one or more passages that extend from an end (upstream extremity or downstream) can have and those different length of extending from the other end, or they can be equal length.The passage at downstream core two ends can long 7mm and 8mm between.The passage at downstream core two ends can long 3mm and 4mm between, long 3.75mm for example.Provide the passage of these sizes to mean that the performance (tar maintenance etc.) of downstream core will be acceptable, and should guarantee to obtain advantage of the present invention (for example, the maintenance of consistent pressure drop, enhancing).
Core extending longitudinally can only comprise downstream core, or can comprise one or more (for example, 1,2, the 3 or 4) add ons (one or more sections) containing tobacco smoke filtration material.Add ons will be positioned at the upstream of downstream core.Tobacco smoke filtration material for example can be any of conventional those materials of manufacturing for tobacco smog filte r (being generally thread, fiber, fabric or extruded material).Filtering material can be natural or synthetic thread tow, for example, such as polyethylene or polyacrylic cotton or plastics, or cellulose acetate filamentous tow.It can be natural or synthetic staple for example, velveteen, textile material such as paper (being generally crape) and synthetic nonwoven and extruded material (for example, starch, synthetic foam).
Any type filtration device structure that becomes known for cigarette filter can be used in these add ons (additional sections), for example, " wrapped acetate fiber ", " not wrapped acetate fiber ", " acetate fiber of random orientation ", " cellulose acetate " or " active acetate fiber ".Can be in downstream the upstream of (for example, " CPA ") element use (preferably different qualities) element of any amount, for example, 1,2,3 or 4 sections.In the situation that exist two or more to comprise the add ons of tobacco smoke filtration material, these add ons preferably have different filtering features, for example cellulose acetate sections and " active acetate fiber " sections.
Be suitable for (for example, the particulate) additive material (for example, activated carbon) in cigarette filter and/or can comprise the spices such as menthol one or more the comprising in add ons.
Additive material can be particulate additives.Particulate additives can be any particulate additives be applicable in tobacco smog filte r---for example activated carbon, zeolite, ion exchange resin (for example, weak-base anion-exchange resin), sepiolite, silica gel, aluminium oxide, molecular sieve, carbon containing fluoropolymer resin and diatomite.Particulate additives can be the mixture of two or more materials.Additive can comprise spices---for example, menthol---for example, additive can be the sepiolite grain that is applied with menthol.For example, if the core extending longitudinally of tobacco smog filte r comprises that the full envelope that is embedded into wherein (, embedding) additive bag (a plurality of), this additive can be the particulate additives such as activated carbon (referring to above), it for example is encapsulated in filtering material as discrete particulate additives particle bag or pod, and particulate additives is basically separated and entirely is encapsulated in filtering material with filtering material.In another example, full envelope (for example, embedding) additive bag (a plurality of) can be one or more fragility capsules, or one or more fragility microcapsules.(a plurality of) capsule or (a plurality of) microcapsules can comprise various media---for example spices and/or liquid, solid or other material, and for example, to assist smog to filter.The use of capsule or microcapsules is known in the art.
Described (or one) add ons can comprise cellulose acetate filtering material cylindrical plag extending longitudinally.Cellulose acetate filtering material cylindrical plag extending longitudinally also can comprise the packing material for example formed by porous or non-porous formed package thing.This wrapped filter/element is called " wrapped acetate fiber " filter or filter element.
Described (or one) add ons can comprise cellulose acetate filtering material cylindrical plag extending longitudinally, and it also comprises for example particulate additives of the packing material of porous or non-porous formed package paper of optional area.This type of filter/element is called " active acetate fiber " filter or filter element.
Described (or the one) add ons that comprises tobacco smoke filtration material can comprise the bar-shaped core of tobacco smoke filtration material, it (for example has full envelope, embedding) one of additive (for example, particulate additives) in the inner (or at least one) bag.The bar-shaped core of tobacco smoke filtration material optionally has the extra packing material (for example, porous or non-porous) be bonded on around bar-shaped core.In the tobacco smoke filtration material core, provide full envelope additive bag to there is following effect: the second end of additive and core spaced apart (because having tobacco smoke filtration material between the end of additive bag and core).Comprise and (for example there is full envelope, the tobacco smoke filtration material core single extending longitudinally of the tobacco smoke filtration material clavate core of embedding) one of additive (for example, particulate additives) in the inner (or at least one) bag can for example be manufactured by the methods and apparatus disclosed in WO 2006/059134.
Described (or the one) add ons that comprises tobacco smoke filtration material can comprise the clavate core of tobacco smoke filtration material and (for example be bonded on clavate core band additive on every side, particulate additives) packing material, with the additive packing thing have be attached to the one or more parts of its inner radial surface additive (for example, particulate additives), described band additive packing thing does not have additive in the core downstream around its periphery.In the downstream with the additive packing thing, do not exist additive to there is following effect: the downstream of additive and core spaced apart (because there is no additive on the packing material of core the second end).Preferably, do not there is additive at downstream and the two ends, upstream of core around its periphery with the additive packing thing.The core extending longitudinally of tobacco smoke filtration material can be as disclosed filter element in GB 2261152, this core extending longitudinally comprises the bar-shaped core of tobacco smoke filtration material and is bonded on bar-shaped core band additive (for example, particulate additives) packing material on every side.With the additive packing thing, can be porous or non-porous.
Tobacco smog filte r can grow 15 to 40mm, and for example 17 to 35mm, and for example 20 to 30mm.The recessed section of filter (, the downstream of outer packaging thing extend beyond its around the downstream of the core engaged with the downstream at filter (for example, mouth) end limits that segment length of cavity) can grow 3 to 10mm, and most preferably grow 4 to 6mm.Core extending longitudinally (comprising downstream groove core and any add ons that comprises tobacco smoke filtration material) can grow 10 to 30mm, and for example 14 to 27mm, and for example 17 to 25mm.The girth of tobacco smog filte r can be 14 to 28mm, and for example 16 to 26mm, and for example 16 to 17mm or 24 to 25mm.Finished product filtering type cigarette can be ventilation or nonventilated, and has traditionally any girth scope (for example, girth c. 14 to c. 28mm) for smoking.
The outer packaging thing can be paper, for example formed package paper, for example hard formed package paper.The outer packaging thing can be porous or non-porous.The outer packaging thing can be basic weight approximately 40 to about 120g/m 2paper.The basic weight of outer packaging thing can be approximately 80 to about 120g/m 2, about 100g/m for example 2basic weight, for example, for the groove filter of standard (c. 24 is to 25mm) girth.For example, for very thin or super very thin recessed filter (, thin extremely approximately 16 to 17mm girths), the outer packaging thing can be for example about 50g/m of low basic weight 2formed package paper.To understand, also can use harder assembled paper by the connecting shaping wrapping paper, and with the rigidity by expectation, give finished product recessed filter type cigarette.
In the example aspect this of the present invention, the first interior packing thing is extensible exceed its around the downstream of the downstream core/downstream components engaged, limit (for example, separately or together with the outer packaging thing) (for example, tubulose) cavity with the downstream at filter.In this type of example, the second interior packing thing of downstream core can omit, because may need another packing material (for example,, for wrapping up the outer packaging thing of the recessed filter of finished product) to carry out each sections of combination filter.Yet will understand, basic weight is for example 80g/m 2(for example, embossing) the first interior packing thing can make than low weight 40g/m for example 2the outer packaging thing can be used, but still in recessed end, provide sufficient rigidity.
The first interior packing thing and/or the second interior packing thing can be colored or dye to strengthen the particularity of end outward appearance.Preferably, color or pigment and for example white filtering material form contrast.
The first interior packing thing not necessarily extends beyond the downstream of downstream core.In this type of example, downstream core and the first interior packing thing can be in being wrapped in the second interior packing thing before outer wrap is in (heavy formed package paper) outer packaging thing (as common for such known " CPA " filter element), when the recessed filter of assembling finished product, the outer packaging thing defines cavity.In other example, can omit the second interior packing thing.To understand, the example that these examples will extend in the recessed section of finished product filter downstream for the first interior packing thing (or limit should recessed section) forms different end outward appearances.
In filtering type cigarette according to the present invention, the filter of the present invention filter of filter element of the present invention (or comprise) is bonded to the tobacco rod of packed article parcel, and an end of its middle filtrator is towards tobacco.For example, can be assembled by ring type [it is bonded on around (wrapped) filter and excellent abutting end just, and many filter packing materials are exposed] or more preferably by spelling, fill external packing (it is bonded on around the abutting end of whole filter length and tobacco rod), thus make filter be bonded to wrapped tobacco rod.Cigarette can comprise the outer packaging thing of (for example, fighting recklessly dress paper) assembled external packing together with filter, for example, to give desired (, further improving) rigidity to the recessed filter type cigarette of finished product.
According to any filter of the present invention or filtering type cigarette, can be nonventilated, perhaps can be and ventilate by method as known in the art, for example, by utilizing pre-punching or ventilative packing material (formed package thing) and/or the laser beam perforation of packing material (formed package thing) and assembled external packing.The external packing of air permeability spelling dress can be inherently equally ventilative or be provided with air vent, and, in the ventilating product that filter formed package thing and assembled external packing all exist, through external packing, ventilates and normally with through the formed package thing ventilate and align.Pass filter formed package thing or pass assembled external packing or can make by laser beam perforation at filter or filtering type cigarette production period through the two air vent simultaneously.
Ventilation in filter according to the present invention or filtering type cigarette is in the situation that comprise for example vertical colocalization of the product of activated carbon of additive, and this localization is preferably located in the upstream that is selected from additive, downstream and one or two zone of alignment with it.Therefore, can be in vertical colocalization of filter or filtering type cigarette according to the ventilation in filter of the present invention or filtering type cigarette, for example in the upstream that is selected from additive bag (or sticking patch or part), downstream and with it the alignment one or two zone, this depends on required ventilation and strainability.Preferably, according to the ventilation in filter of the present invention or filtering type cigarette, can for example with add ons, align in vertical colocalization of filter or filtering type cigarette, this add ons is " active acetate fiber " as above filter or filter element.In the upstream of for example the first additive bag (if exist) and/or with it the ventilation of alignment is normally preferred.Between the part (or bag or sticking patch) of the second additive, can there be ventilation in (when having two or more).
According to the present invention, aspect another, a kind of multiple rod that comprises a plurality of (for example, 2,4,6 etc.) filter (or filter element) is provided, this filter (or filter element) as mentioned above and/or at this with the one combination of end-to-end ground of mirror.Multiple rod and their manufacture method are known in the art.
The accompanying drawing explanation
Referring now to following example and accompanying drawing, the present invention is described, wherein:
The schematically illustrated recessed filter according to the first example of the present invention of Fig. 1;
The schematically illustrated recessed filter according to the second example of the present invention of Fig. 2;
The schematically illustrated recessed filter according to another example of the present invention of Fig. 3; And
The schematically illustrated recessed filter according to another different examples of the present invention of Fig. 4.
The specific embodiment
Fig. 1 shows " recessed SPF " filter end, and it is example of the present invention.This filter comprises: cylindricality core extending longitudinally, and it comprises downstream components (1); And add ons (3), it comprises tobacco smoke filtration material.What downstream components (1) comprised the long 5mm that is column tube form extending longitudinally extrudes the HDPE section, and this column tube has 6 flanks that separate that extend radially inwardly to the inside body extending longitudinally that is another hollow cylindrical form of tubes.Flank (together with the radially-outer surface of inner radial surface and the inside body of column tube) limits 6 longitudinally extending channels.The hollow tubular inside body limits another longitudinally extending channels in inside body.The cross-sectional profiles of HDPE section (1) is shown in (2).Add ons (3) comprises the cylindrical plag of the tobacco smoke filtration material that is the cellulose acetate fibre form, and long 18mm.Add ons (3) abuts to the upstream extremity of extruding downstream components (1) and element (3) and (1) and utilizes basic weight 27g/m 2formed package thing (4) combine, this formed package thing applies by means as known in the art.100g/m 2the outer packaging thing (5) of formed package thing is engaged in core extending longitudinally (that is, element (3) and (1)) on every side so that complete outer wrap core; The downstream of outer packaging thing (5) extend beyond core extending longitudinally downstream [with its around the downstream components (1) engaged], limit tubular cavity or the recess (6) of long 4mm with the downstream at filter.The outer packaging thing applies by means as known in the art.This obtains the recessed filter of overall length 27mm.
To understand, recess (6) and downstream components (1) provide with the combination of the downstream (mouth end) in cross section (2) the very distinctive end outward appearance that is difficult to forgery, and cross section (2) are included in the upstream passage extending longitudinally of the downstream of core/downstream components.
Fig. 2 shows the another example of " recessed SPF " end, and it is example of the present invention.This filter comprises: cylindricality core extending longitudinally, and it comprises downstream components (1a); The first add ons (3a), it comprises tobacco smoke filtration material; And second add ons (7a), it comprises tobacco smoke filtration material.What downstream components (1a) comprised the long 5mm that is column tube form extending longitudinally extrudes the HDPE section, and this column tube has 6 flanks that separate that extend radially inwardly to the inside body extending longitudinally that is another hollow cylindrical form of tubes.Flank (together with the radially-outer surface of inner radial surface and the inside body of column tube) limits 6 longitudinally extending channels.The hollow tubular inside body limits another longitudinally extending channels in inside body.Therefore, similar shown in the cross-sectional profiles of HDPE section (1a) and Fig. 1 (2).The first add ons (3a) comprises the tobacco smoke filtration material cylindrical plag that is the cellulose acetate fibre form of long 8mm, and is positioned at the positive upstream of extruding section (1a).The second add ons (7a) comprises " active acetate fiber " sections that is tobacco smoke filtration material cylindrical plag form, and the form of this tobacco smoke filtration material is the cellulose acetate fibre that comprises the particulate additives that is the activated carbon form.The long 10mm of the second add ons (7a) and be positioned at the upstream extremity (this end will be connected on the tobacco column in finished product filtering type cigarette) of filter.Filter sections (1a), (3a) and (7a) by means as known in the art, utilize basic weight 27g/m 2formed package thing (4) link together.100g/m 2the outer packaging thing (5) of formed package thing is bonded on core extending longitudinally (that is, element (7a), (3a) and (1a)) on every side so that this core of outer wrap fully; The downstream of outer packaging thing (5) extend beyond core extending longitudinally downstream [with its around the downstream components (1a) engaged], limit tubular cavity or the recess (6) of long 4mm with the downstream at filter.The outer packaging thing applies by means as known in the art.This obtains the recessed filter of overall length 27mm.
To understand equally, recess (6) and downstream components (1a) provide with the combination of the downstream (mouth end) in cross section (2) the very distinctive end outward appearance that is difficult to forgery, and this cross section (2) are included in the upstream passage extending longitudinally of the downstream of core.
Fig. 3 shows " recessed CPA " filter end, and it is example of the present invention.This filter comprises: (for example, cylindricality) core extending longitudinally, and it comprises downstream core (8); And the add ons (11) that is positioned at the upstream of downstream core.Add ons (11) comprises " active acetate fiber " sections of the long 15mm that is tobacco smoke filtration material cylindrical plag form, and the form of tobacco smoke filtration material is the cellulose acetate fibre that comprises the particulate additives that is the activated carbon form.Downstream core (8) comprises vertical cylindrical plag of long 8mm, and it comprises being wrapped in and comprises basic weight 80g/m 2the first interior packing thing (9) of formed package thing in cellulose acetate fibre.Form 15 groove on one partial-length the embossing of the formed package thing of interior packing thing (9) with the about 0.45mm of the degree of depth and the about 1.5mm of pitch.Plug is wrapped up by interior packing thing (9), make it at its upstream end by not long zone (" rod the zone ") encirclement of approximately 4mm of embossing molding packing material, and long zone (" trench region ") surround at the residue 4mm of the embossed moulding packing material of its downstream; The embossed area of the interior packing thing of formed package thing (" trench region ") extends beyond the another 4mm of downstream of plug downstream.Downstream core (8) and add ons (11) are by heavy 50g/m 2the outer packaging thing (12) that is hard formed package thing form combine, the downstream of outer packaging thing (12) also extend beyond its around the downstream 4mm of the core (8) engaged, limit the tubular cavity of long 4mm with the downstream at filter [together with interior packing thing (9)].The embossed area of interior packing thing (9) limits 15 grooves or passage together with the outer packaging thing (12) be bonded on around the interior packing thing, during its upstream in the downstream of downstream core extends lengthwise into downstream core, and its downstream in the downstream of downstream core extends lengthwise in cavity/recess area.To understand, the rigidity recess (10) that is combined to form long 4mm of the hard outer packaging thing (12) of formed package thing and the embossing interior packing thing (9) of formed package thing, the distinctive groove ends outward appearance that it limits with the embossed pattern by interior packing thing (9) and outer packaging thing (12).
Fig. 4 shows recessed CPA filter end, and it is another example of the present invention.This filter comprises: (for example, cylindricality) core extending longitudinally, and it comprises downstream core (8a); And the add ons (11) that is positioned at the upstream of downstream core.Add ons (1) comprises " active acetate fiber " sections of the long 12mm that is tobacco smoke filtration material cylindrical plag form, and the form of this tobacco smoke filtration material is the cellulose acetate fibre that comprises the particulate additives that is the activated carbon form.Downstream core (8a) comprises vertical cylindrical plag of long 11mm, and it comprises being wrapped in and comprises basic weight 80g/m 2the first interior packing thing (9a) of formed package thing in cellulose acetate fibre.The formed package thing that forms interior packing thing (9a) is embossed on the one partial-length with 15 grooves of the about 0.45mm of the degree of depth and the about 1.5mm of pitch.Plug is wrapped up by interior packing thing (9a), so that it is at its upstream end by not long zone (" rod the zone ") encirclement of approximately 5mm of embossing molding packing material, and long zone (" trench region ") surrounds at the residue 6mm of the embossed moulding packing material of its downstream.Downstream core (8a) and add ons (11) are by heavy 100g/m 2the outer packaging thing (12a) that is hard formed package thing form combine; The downstream of outer packaging thing (12) extend beyond its around the downstream 4mm of the downstream core (8a) engaged, limit the tubular cavity of long 4mm with the downstream at filter.Interior packing thing (9a) limits 15 grooves or passage together with outer packaging thing (2a), and its upstream in the downstream of downstream core is extending longitudinally, and is visible in the recess/cavity formed by outer packaging thing (12a).
To understand, the groove ends outward appearance of the downstream core (8a) that recess and the embossed pattern by interior packing thing (9) and outer packaging thing 12 limit provides from visible distinctive end, the end of filtering type cigarette outward appearance.
To understand, comprise that the above-mentioned filter of the recessed filter of multi-segmental can be by the conventional means manufacture.To understand, above-mentioned filter can be used for manufacturing filtering type cigarette by conventional means.For example, filter of the present invention can combine with being wrapped tobacco rod, and an end of its middle filtrator is towards tobacco.For example, can be assembled by ring type [it engages with around excellent abutting end at (being wrapped) filter just, and many filter packing materials are exposed] or more preferably by spelling, fill external packing (engaging around its abutting end in whole filter length and tobacco rod), thus filter is bonded to and is wrapped tobacco rod.Cigarette can comprise that assembled external packing (for example, fighting recklessly dress paper) is together with filter outer packaging thing, for example, the recessed filter type cigarette of finished product is given to desired (, further improving) rigidity.

Claims (20)

1. a tobacco smog filte r or filter element comprise:
Core extending longitudinally, it comprises tobacco smoke filtration material;
Be bonded on described core extending longitudinally outer packaging thing on every side; Wherein said core extending longitudinally is included in upstream one or more passages extending longitudinally of the downstream of described core, wherein:
(a) described core extending longitudinally comprises the hollow tube of tobacco smoke filtration material; Perhaps
(b) described core extending longitudinally comprises downstream components, and described downstream components comprises pipe extending longitudinally, and it has a plurality of flanks that separate that substantially extend inward into inside body extending longitudinally, and described flank limits a plurality of longitudinally extending channels betwixt; Perhaps
(c) wherein, described core extending longitudinally comprises: downstream components, and it comprises the downstream core extending longitudinally of tobacco smoke filtration material; Be bonded on described downstream core the first interior packing thing on every side; And optionally be bonded on the second interior packing thing around described the first interior packing thing; Described the first interior packing thing has abnormal shape (for example, corrugated) outer surface, and it limits at least one longitudinally extending channels together with described the second interior packing thing or described outer packaging thing;
And wherein, the downstream of the downstream of described outer packaging thing and/or described the first interior packing thing extend beyond its around the downstream of the described core engaged, limit cavity with the downstream at described filter.
2. tobacco smog filte r according to claim 1 or filter element, is characterized in that, described core extending longitudinally comprises the hollow tube of the tobacco smoke filtration material do not extended along the total length of described core.
3. a tobacco smog filte r or filter element comprise: core extending longitudinally, and it comprises tobacco smoke filtration material; And the outer packaging thing, it is bonded on around described core extending longitudinally;
Wherein, described core extending longitudinally comprises downstream components, and described downstream components comprises pipe extending longitudinally, and it has a plurality of flanks that separate that substantially extend inward into inside body extending longitudinally, and described flank limits a plurality of longitudinally extending channels betwixt;
And wherein, the downstream of described outer packaging thing extend beyond its around the downstream of the described core engaged, limit cavity with the downstream at described filter.
4. tobacco smog filte r according to claim 3 or filter element, is characterized in that, described inside body is the hollow inside body with (a plurality of) inwall that limits another longitudinally extending channels.
5. according to the described tobacco smog filte r of claim 3 or 4 or filter element, it is characterized in that, described downstream components is formed integrally as discrete component.
6. according to claim 3,4 or 5 described tobacco smog filte r or filter elements, it is characterized in that, described downstream components forms by extruding.
7. a tobacco smog filte r or filter element comprise: core extending longitudinally, and it comprises tobacco smoke filtration material; And the outer packaging thing, it is bonded on around described core extending longitudinally;
Wherein, described core extending longitudinally comprises: downstream components, and it comprises the downstream core extending longitudinally of tobacco smoke filtration material; Be bonded on described downstream core the first interior packing thing on every side; And optionally be bonded on the second interior packing thing around described the first interior packing thing; Described the first interior packing thing has abnormal shape (for example, corrugated) outer surface, and it limits at least one longitudinally extending channels together with described the second interior packing thing or described outer packaging thing;
And wherein, the downstream of the downstream of described outer packaging thing and/or described the first interior packing thing extend beyond its around the downstream of the described core engaged, limit cavity with the downstream at described filter.
8. tobacco smog filte r according to claim 7 or filter element, it is characterized in that, described the first interior packing thing is bonded on around described core, wherein said abnormal shape (for example, corrugated) surperficial in the face of described outer packaging thing or described the second packing material, to limit described (a plurality of) longitudinally extending channels together with described the second packing material or described outer packaging thing.
9. according to the described tobacco smog filte r of claim 7 or 8 or filter element, it is characterized in that, at least one longitudinally extending channels is extending longitudinally in the upstream of the downstream of described downstream core.
10. tobacco smog filte r according to claim 9 or filter element, is characterized in that, described or each passage only extends along a part of length of described downstream core.
11. according to the described tobacco smog filte r of the aforementioned claim of any one or filter element, it is characterized in that, described core extending longitudinally comprises (a plurality of) add ons in the upstream of described downstream components, it comprises tobacco smoke filtration material.
12. according to the described tobacco smog filte r of claim 10 or 11 or filter element, it is characterized in that, a described or add ons comprises cellulose acetate filtering material cylindrical plag extending longitudinally, and it optionally also comprises the packing material of porous or non-porous formed package thing.
13. according to claim 10,11 or 12 described tobacco smog filte r or filter elements, it is characterized in that, a described or add ons comprises cellulose acetate filtering material cylindrical plag extending longitudinally, it also comprises particulate additives, optionally also comprises the packing material of porous or non-porous formed package thing.
14. a tobacco smog filte r or filter element comprise: core extending longitudinally, it comprises tobacco smoke filtration material; And be bonded on the outer packaging thing around described core extending longitudinally; Wherein said core extending longitudinally is included in upstream one or more passages extending longitudinally of the downstream of described core; And wherein, the downstream of described outer packaging thing extend beyond its around the downstream of the described core engaged, limit cavity with the downstream at described filter.
15. tobacco smog filte r according to claim 14 or filter element, is characterized in that, described core extending longitudinally comprises the hollow tube of tobacco smoke filtration material.
For example, 16. according to the described filter of the aforementioned claim of any one or filter element, it is characterized in that, described outer packaging thing is paper, formed package paper.
17. according to the described filter of the aforementioned claim of any one or filter element, it is characterized in that, described outer packaging thing is for having from approximately 40 to about 120g/m 2the paper of basic weight.
18. one kind roughly as above with reference to the described tobacco smog filte r of accompanying drawing arbitrarily.
19. a filtering type cigarette, comprise that this filter or filter element are bonded to wrapped tobacco rod according to the described filter of the aforementioned claim of any one or filter element, the first end of wherein said core is towards described tobacco.
20. a multiple rod,, according to the described filter of any one in claim 1 to 18 (or filter element), this filter (or filter element) is with the one combination of end-to-end ground of mirror to comprise a plurality of (for example, 2,4,6 etc.).
CN201280013432.5A 2011-03-16 2012-03-14 Tobacco smoke filter Active CN103476278B (en)

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PCT/GB2012/000243 WO2012123702A1 (en) 2011-03-16 2012-03-14 Tobacco smoke filter

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EP2685849A1 (en) 2014-01-22
KR20140009385A (en) 2014-01-22
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GB201104475D0 (en) 2011-04-27
JP6042829B2 (en) 2016-12-14
RU2594557C2 (en) 2016-08-20
CN103476278B (en) 2017-02-08
RU2013143885A (en) 2015-04-27
JP2014507957A (en) 2014-04-03
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KR20210046864A (en) 2021-04-28
WO2012123702A1 (en) 2012-09-20
UA112313C2 (en) 2016-08-25
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WO2012123702A8 (en) 2013-09-12
EP2685849B1 (en) 2021-08-11

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