EP3651591B1 - Filter für einen rauchartikel - Google Patents

Filter für einen rauchartikel Download PDF

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Publication number
EP3651591B1
EP3651591B1 EP18783398.3A EP18783398A EP3651591B1 EP 3651591 B1 EP3651591 B1 EP 3651591B1 EP 18783398 A EP18783398 A EP 18783398A EP 3651591 B1 EP3651591 B1 EP 3651591B1
Authority
EP
European Patent Office
Prior art keywords
filter
mouthpiece
cannabis sativa
cannabis
sativa
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP18783398.3A
Other languages
English (en)
French (fr)
Other versions
EP3651591A1 (de
Inventor
Brenton D DILLIE
Ann TREADAWAY
Elizabeth GERRINGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Essentra Filter Products Development Co Pte Ltd
Original Assignee
Essentra Filter Products Development Co Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=63798963&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3651591(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from US15/722,086 external-priority patent/US20190098928A1/en
Priority claimed from GB1718333.6A external-priority patent/GB2568096A/en
Application filed by Essentra Filter Products Development Co Pte Ltd filed Critical Essentra Filter Products Development Co Pte Ltd
Priority to PL18783398T priority Critical patent/PL3651591T3/pl
Priority to EP20212192.7A priority patent/EP3804539A1/de
Publication of EP3651591A1 publication Critical patent/EP3651591A1/de
Application granted granted Critical
Publication of EP3651591B1 publication Critical patent/EP3651591B1/de
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04Tobacco smoke filters characterised by their shape or structure
    • A24D3/048Tobacco smoke filters characterised by their shape or structure containing additives
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/061Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/08Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/06Use of materials for tobacco smoke filters
    • A24D3/08Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • A24D3/10Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives

Definitions

  • the present invention relates to filters for smoking articles.
  • the filtering material typically used in smoking article filters is a continuous tow of filamentary cellulose acetate plasticised with triacetin, which is gathered together to form a solid cylindrical rod of filtering material.
  • the solid cylindrical rod of filtering material may then be chopped into segments to provide individual filters.
  • Smoking articles such as conventional tobacco cigarettes are most commonly sold filter tipped.
  • a filter is attached to a rod of tobacco for example using one or more wrappers.
  • Marijuana smoking articles are typically hand-rolled by the smoker. Marijuana smoking articles do not typically include a filter comprising a cylindrical rod of acetate fibres. This is because the cellulose acetate is thought to excessively filter the active ingredients in marijuana smoke, for example CBD and/or THC.
  • Many marijuana smokers prefer to smoke marijuana smoking articles using a rudimentary smoker-prepared mouthpiece, commonly known as a "roach".
  • a roach is generally prepared by rolling a strip of cardboard at an angle to edge of the strip to form a conical mouthpiece.
  • Roaches do not significantly filter the marijuana smoke, and simply serve to prevent the heat from the smoke and/or burning particles in the smoke, e.g. burning Marijuana particles from burning the smoker's lips whilst inhaling.
  • roaches Disadvantages of roaches include the significant amount of time for the smoker to prepare and an undesirable, untrustworthy and unreproducible crude-looking end appearance. Further, a roach does not provide the same firmness and/or experience as a manufactured cigarette filter.
  • a refined, reproducible and trustworthy looking smoking article filter for use with a marijuana smoking article, either for use as a "roll-your-own” product, or for use in a manufactured filter tipped marijuana smoking article (e.g. cigarette). It is desirable that the smoking article filter should prevent the smoker's lips from getting burnt and provide a reproducible, refined and trustworthy looking end appearance similar to that of a modern filter-tipped cigarette, whilst (like roaches) not significantly reducing the quantities of active ingredients in the marijuana smoke.
  • WO2014/064087A1 discloses a tip comprising bicomponent fibres for a smoking article.
  • WO2014/068295A1 discloses a channel containing filter for a smoking article.
  • US2016/0165950A1 discloses a smoking article filter including a non-porous micro capillary tube.
  • US2016/0366926 discloses a method of manufacturing a smokable cannabis product.
  • US2017/0273349A1 discloses a cannabis-hemp smoking blend.
  • US4515170 discloses a ventilated mouthpiece for a smoking article.
  • GB625391 discloses a tube containing cigarette filter. From US-A-5 195 543 is a filter known which is of a non-uniform cross-section along its length and which comprises non-throughgoing channels arranged in a triangular pattern.
  • a mouthpiece or filter (e.g. for use in a smoking article) comprising a longitudinally extending (e.g. cylindrical) rod of filtering material of uniform cross section along its full length, the longitudinally extending rod comprising three longitudinally extending channels which extend along (e.g. through) the full length of the mouthpiece or filter wherein the three channels are arranged in a triangular pattern.
  • the three channels are surrounded by the filtering material along the full length of the mouthpiece or filter, but open at both ends.
  • the longitudinally extending rod of filtering material is of uniform cross-section along its full length (for example, being of uniform annular cross-section along its full length with the inner surface of the annular cross-section defining the channels).
  • the three channels may be of uniform cross-section along their full length.
  • the three channels may be of circular cross section, or other cross section (e.g. star-shaped, crescent shaped, flower-shaped, cross-shaped, X-shaped etc.)
  • the longitudinally extending rod of filtering material is of uniform outer dimension along its full length but the channels (which may or may not be of uniform cross-section along their full length) are helical about the longitudinally extending axis of the filter (e.g. the channels are in the form of a spiral about the longitudinal axis of the filter).
  • a helical channel increases the distance the marijuana smoke has to travel to reach the smoker's lips, thus providing a cool yet minimally filtered smoke. This advantage is not possible using existing roach technology.
  • the mouthpiece of the present invention may be referred to as a filter.
  • the level of filtration provided by the mouthpiece or filter may be varied according to the user's preference by varying the features of the mouthpiece or filter e.g. varying the diameter of the channel(s) present.
  • the level of filtration may be varied for example from providing no filtration to providing some filtration (e.g. 2-3%).
  • a mouthpiece or filter according to the present invention allows for smoke constituents to be focused towards the user and for cooling of the smoke as it travels to the user.
  • the mouthpiece or filter also may prevent embers or loose particulate matter from reaching the user's mouth and provides a grip point for the users fingers at the end of the product.
  • the mouthpiece or filter of the present invention may provide a unique visual experience for the user, for example by having a certain colour (e.g. red, yellow or green) or being capable of colour change during use of the product.
  • the mouthpiece or filter may provide a similar smoking experience (e.g. in terms of mouth-feel) to a cigarette due to the uniformity and firmness of the mouthpiece, and/or may make it easier to make the 'joint'.
  • the three channels may be of circular, semi-circular (D-shaped), square, triangular, hollow star shaped, trilobal, pentagonal or cog-shaped cross-section, or of a cross-section in the shape of a logo or other pattern.
  • Mouthpieces or filters having non-cylindrical channels, particularly those channel mouthpieces or filters having a complex and/or unsymmetrical cross-sectional profile may be of particular use in combatting anti-counterfeiting.
  • Channel mouthpieces or filters wherein the channel is not of uniform cross-section along its full length may also be of use in combatting anti-counterfeiting.
  • the three channels which extend the full length of the mouthpiece or filter may be of uniform cross-section along the full length of the mouthpiece or filter.
  • the rod of filtering material is preferably of uniform outer dimensions along its full length (e.g. a cylinder of uniform dimensions along its full length).
  • Channel mouthpieces or filters may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the mouthpiece or filter to be produced, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of the channel .
  • the filamentary tow When the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, a mouthpiece or filter is formed having a channel having a cross-sectional profile equivalent to that of the inner rod.
  • Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die.
  • the heated steam may be applied via a duct in the die.
  • the heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing the mouthpiece or filter to maintain the shape of the die after
  • the inclusion of three channels extending along (e.g. through) the full length of the mouthpiece or filter allows a significant quantity of smoke (e.g. marijuana smoke, e.g. hemp smoke, e.g. oregano smoke) to pass directly to the smoker's mouth without being overly filtered.
  • smoke e.g. marijuana smoke, e.g. hemp smoke, e.g. oregano smoke
  • the mouthpiece or filter also provides a refined end appearance and prevents the smoker's fingers and/or mouth from being burnt.
  • the mouthpiece or filter of the present invention comprises three channels arranged in a triangular pattern.
  • the use of multiple channels may further cool the smoke and prevent embers from reaching the user's mouth.
  • the longitudinally extending rod of filtering material is of uniform cross-section along its full length with the channels arranged in a triangular pattern (see e.g. Figure 4 ).
  • the filtering material may be, for example, any of those materials (usually filamentary, fibrous, web or extruded) conventionally employed for tobacco smoke filter manufacture.
  • the filtering material may be natural or synthetic filamentary tow, e.g. of cotton or plastics such as polyethylene or polypropylene, or cellulose acetate filamentary tow.
  • the filtering material may be a thermoplastic or otherwise spinnable polymer, for example polypropylene, polyethylene terephthalate or polyactide. It may be, for example, natural or synthetic staple fibres, cotton wool, web material such as paper (usually creped) and synthetic non-wovens, and extruded material (e.g. starch, synthetic foams).
  • the filtering material comprises cellulose acetate filamentary tow.
  • the fibres may be plasticised.
  • the filtering material may optionally include a plasticiser.
  • the formation of plasticised tow is well known in the art.
  • the plasticiser (which plasticises the fibres) may be, for example, triacetin, triethyleneglycol diacetate (TEGDA) or polyethylene glycol (PEG).
  • TAGDA triethyleneglycol diacetate
  • PEG polyethylene glycol
  • the fibres may be fibres of plasticised cellulose acetate tow.
  • the fibres may be cellulose acetate tow which has been plasticised with e.g. triacetin.
  • the filtering material may optionally include a binder material.
  • the filtering material may optionally include a water soluble binder material.
  • water soluble materials include water soluble polymer materials such as polyvinyl alcohol, polyvinyl pyrrolidone, polyvinyl ether, starches, polyethylene glycols and polypropylene glycols; blends of water soluble binders with plasticisers such as triacetin, triethyleneglycol diacetate (TEGDA), or polyethylene glycol (PEG); and hot melt water soluble binders in particulate form.
  • TOGDA triethyleneglycol diacetate
  • PEG polyethylene glycol
  • the filtering material may include an additive.
  • the additive may be a particulate additive.
  • the particulate additive may be any particulate additive suitable for use in a smoke filter - e.g. activated carbon, zeolite, ion exchange resin (e.g. a weakly basic anion exchange resin), sepiolite, silica gel, alumina, molecular sieves, carbonaceous polymer resins and diatomaceous earths.
  • the particulate additive may be a mixture of two, or more, materials.
  • the additive may be a pigment, for example a pearlescent pigment or a thermo-chromatic pigment,
  • the additive may include a smoke modifying agent (for example a flavourant).
  • a smoke modifying agent for example a flavourant
  • This may be any smoke modifying agent (e.g. flavourant) known or suitable for use in a smoking article such as a cigarette, for example flavourant such as menthol, spearmint, clove oil etc.
  • the flavourant may be any flavouring agent known for use in smoke filters.
  • the flavouring agent may be menthol, spearmint, peppermint, nutmeg, cinnamon, clove, lemon, chocolate, peach, strawberry, vanilla etc.
  • the smoke modifying agent (flavourant) may be applied to the filtering material in liquid form.
  • the smoke modifying agent (flavourant) may be liquefied prior to application to the filtering material, for example by heating above the melting point, for example by mixing with a liquid carrier.
  • the smoke modifying agent (flavourant) may be applied to the filtering material prior to the filtering material entering the die, for example immediately before entering the die.
  • the smoke modifying agent (flavourant) may be mixed with and applied with a plasticiser, for example by spraying the mixture of smoke modifying agent (flavourant) and plasticiser onto the filtering material.
  • a preferred smoke modifying agent (flavourant) is menthol.
  • the additive may be sepiolite granules to which menthol flavourant has been applied.
  • the filtering material may include fully enclosed (e.g. embedded) pocket(s) of additive embedded therein.
  • the additive may be a particulate additive such as activated carbon (see above), which is for example enclosed within the filtering material as a discrete pocket or pod of particles of particulate additive which is substantially separate from, and fully enclosed within, the filtering material.
  • the fully enclosed (e.g. embedded) pocket(s) of additive may be a frangible capsule or capsules, or one or a plurality of frangible microcapsules.
  • the capsule(s) or microcapsule(s) may contain a variety of media - e.g. a smoke modifying agent such as a flavourant (such as those flavourants disclosed above) and/or a liquid, solid or other material e.g. to aid smoke filtration.
  • a smoke modifying agent such as a flavourant (such as those flavourants disclosed above)
  • a liquid, solid or other material e.g. to aid smoke filtration.
  • the channels are semi-cylindrical in shape and the pocket(s) of additive (e.g. flavour capsule[s]) is/are provided in the rod of filtering material adjacent the semi-cylindrical channels.
  • the flavourant may be provided in and/or on a thread.
  • "Flavour Thread” smoking article filters are well known in the art. Such filters incorporate a thread or tape element, typically longitudinally aligned therein, the element carrying a smoke modifying agent such as a flavourant. These were originally proposed in US 4281671 , in which a cotton sewing thread was the preferred element. This document also disclosed how the thread could be coloured, e.g. with different colours denoting different flavours.
  • the thread may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel.
  • the flavourant may be provided in and/or on an extruded element.
  • "Tube filter” smoking article filters are well known in the art. Such filters incorporate one or more continuous extruded element(s) extending longitudinally of the rod. These filters were proposed in WO2011/058319 .
  • the extruded element may be of a hollow or solid cross-section.
  • the extruded element may be provided fully enclosed within the rod of filtering material adjacent a semi-cylindrical channel.
  • the flavourant may be provided in and/or on the extruded element in liquid form, for example as a liquid sprayed onto the external surface of the of the continuous extruded element.
  • the channels are semi-cylindrical in shape and the thread and/or extruded element is provided in the rod of filtering material adjacent to a semi-cylindrical channel.
  • the outer circumference of the mouthpiece or filter may be between 10.0 mm and 50 mm, for example between 14.0 mm and 35 mm, for example between 16 and 30 mm, for example between 18.0 mm and 28 mm, for example between 22 mm and 26 mm, for example about 25 mm.
  • the mouthpiece or filter may have a circumference from 15 mm to 22 mm.
  • the channel or channels present in the mouthpiece or filter of the present invention may for example have a diameter from 0.5 mm to 10 mm, for example from 1 mm to 8 mm, for example from 1 mm to 4 mm, for example from 4 mm to 8 mm, for example from 3 mm to 6 mm.
  • the length of the mouthpiece or filter may be between 4.0 mm and 50 mm, for example between 5.0 mm and 40 mm, for example between 10 and 35 mm, for example between 18.0 mm and 30 mm, for example between 22 mm and 28 mm, for example about 25 mm.
  • the mouthpiece or filter may have a length from 15 mm to 30 mm.
  • the smoke filtering material may be over wrapped with a wrapper or plugwrap, for example a wrapper of paper, for example a wrapper of an air-permeable paper.
  • Particulate additives such as those discussed above may be applied to the wrapper or plugwrap surrounding the filter material, for example as described in GB 2261152 .
  • the wrapper and/or plug wrap may alternatively be derived from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or from a mixture thereof.
  • Such wrappers are well known in the art and described in WO2017068437 , for example.
  • Any mouthpiece or filter or mouthpiece or filter smoking article according to the invention may be unventilated, or may be ventilated by methods well known in the art, e.g. by use of a pre-perforated or air-permeable wrapper(s) (plugwrap), and/or laser perforation of wrapper(s) (plugwrap) and tipping overwrap.
  • a ventilating full tipping overwrap may likewise be inherently air-permeable or provided with ventilation holes, and in ventilated products where both filter plugwrap and tipping overwrap are present ventilation through the overwrap will usually be in register with that through the plugwrap. Ventilation holes through a filter plugwrap, or through a tipping overwrap, or through both simultaneously, may be made by laser perforation during mouthpiece or filter or mouthpiece or filter smoking article production.
  • a multiple rod comprising a plurality of mouthpieces or filters as described above and/or herein integrally joined end-to-end in a mirror image relationship.
  • the smoker can customise their joint. For example, if the smoker wants to regulate or adjust the amount of filtration they can use the mouthpiece with a conventional filter segment, or vary the length of the mouthpiece. If they wish to add flavour/capsule/additive etc. they can use a mouthpiece or filter according to the invention which includes flavour/capsule/additive (as discussed above, see also Fig 3 ). It will also be appreciated that a mouthpiece or filter according to the invention could be used with a conventional flavour/capsule/additive segment to adjust the smoking sensation.
  • the mouthpiece or filter of the invention for use in a smoking article comprising one or more smokable material(s) other than tobacco.
  • the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
  • the use of the mouthpiece or filter of the invention for filtering the smoke of a smoking article comprising one or more smokable material(s) other than tobacco.
  • the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
  • a smoking article comprising the smoking article mouthpiece or filter of the first or second aspect of the invention joined to a wrapped rod comprising a smokable material other than tobacco.
  • the smokable material other than tobacco may be prepared from a plant in the Cannabis genus, for example Cannabis sativa, for example Cannabis sativa sativa, Cannabis sativa indica or Cannabis sativa ruderalis or a mixture thereof. Additionally or alternatively the smokable material other than tobacco may comprise oregano and/or hemp.
  • FIGURE 1 schematically illustrates a comparative example of a mouthpiece or filter
  • FIGURES 2 and 3 schematically illustrate another comparative example of a mouthpiece or filter
  • Figure 4 illustrates a mouthpiece or filter according to the present invention.
  • Figure 1 shows a smoking article filter 1 of 27 mm length and 24.5 mm circumference comprising a longitudinally extending annular rod 2 of filtering material.
  • the filtering material comprises cellulose acetate filamentary tow.
  • the annular rod 2 of filtering material defines a longitudinally extending cylindrical channel 3 which extends along the full length of the filter.
  • Smoking article filter 1 may be manufactured by pulling a continuous bundle of cellulose acetate filamentary tow, optionally with triacetin already applied thereto, through a fix die having an external diameter equal to that of the desired external diameter of the filter, the fix die including a protruding inner rod (or mandrel) extending through the die having a cross-sectional profile equal to that of the desired cross-section of the channel 3.
  • the filamentary tow is pulled through the die, it passes around the inner rod such that on exiting the die, a filter 1 including an annular rod 2 of filtering material is formed, the filter 1 having a channel 3 having a cross-sectional profile equivalent to that of the inner rod.
  • Heated steam may be applied to the filamentary tow whilst the filamentary tow is in the die.
  • the heated steam may be applied via a duct in the die.
  • the heated steam may be for curing plasticizer applied to the filamentary tow (if present), allowing the filter 1 to maintain the shape of the die after exiting the die.
  • FIG 2 shows a smoking article filter 101 , of 27 mm length and 24.5 mm circumference comprising a longitudinally extending annular rod 102 of filtering material.
  • the filtering material comprises cellulose acetate filamentary tow.
  • the annular rod 102 of smoking filtering material includes a longitudinally extending channel 103 of semi-circular (D-shaped) cross-section which extends along the full length of the filter.
  • a flavour capsule 104 is provided within the filtering material which forms the annular rod 102 , approximately half way along the full length of the rod.
  • Smoking article filter 101 may be manufactured using the same method as used to manufacture smoking article filter 1. The insertion of flavour capsule 104 into the annular rod 102 of filtering material may be carried out using methods well known in the art.
  • Figure 3 shows a cross-section of the smoking article filter 101 of Figure 2 (denoted by the plane 105-105 shown in Figure 2 ), showing the D-shaped cross section of channel 103 and the capsule 104 within the filtering material.
  • Figure 4 shows a smoking article filter 201 of 27 mm length and 24.5 mm circumference comprising a longitudinally extending rod 202 of filtering material.
  • the filtering material comprises cellulose acetate filamentary tow.
  • the rod 202 defines three longitudinally extending cylindrical channels 203 arranged in a triangular pattern which extend the full length of the filter.
  • the smoking article filter 201 may be produced by the same method of manufacture used to produce the smoking article filter 1 of Figure 1 , wherein three mandrels will be used to produce the three channels 203.

Claims (15)

  1. Mundstück oder Filter 201, das einen sich längs erstreckenden Stab 202 aus Filtermaterial mit entlang seiner ganzen Länge gleichmäßigem Querschnitt aufweist, wobei der sich längs erstreckende Stab 202 drei sich längs erstreckende Kanäle 203 aufweist, die sich entlang der ganzen Länge des Mundstücks oder Filters erstrecken, wobei die drei Kanäle in einem dreieckigen Muster angeordnet sind.
  2. Mundstück oder Filter 201 nach Anspruch 1, wobei die drei Kanäle 203 entlang der ganzen Länge des Mundstücks oder Filters einen gleichmäßigen Querschnitt haben.
  3. Mundstück oder Filter 201 nach einem der vorhergehenden Ansprüche, wobei die Kanäle 203, die sich über die ganze Länge des Mundstücks oder Filters erstrecken, spiralförmig oder im Wesentlichen spiralförmig sind oder wobei die Kanäle 203, die sich über die ganze Länge des Mundstücks oder Filters erstrecken, halbzylindrisch sind.
  4. Mundstück oder Filter 201 nach einem der vorhergehenden Ansprüche, wobei das Filtermaterial Celluloseacetat-Filamentkabel aufweist oder wobei das Filtermaterial ein thermoplastisches oder anderweitig spinnbares Polymer, zum Beispiel Polypropylen, Polyethylenterephthalat oder Polyactid, aufweist.
  5. Mundstück oder Filter 201 nach einem der vorhergehenden Ansprüche, wobei das Filtermaterial einen Weichmacher, zum Beispiel Triacetin, Triethylenglykoldiacetat (TEGDA) oder Polyethylenglykol (PEG), aufweist.
  6. Mundstück oder Filter 201 nach Anspruch 6, wobei das Filtermaterial ein Pigment und/oder einen Aromastoff aufweist oder wobei das Filtermaterial mehrere Pigmente und/oder mehrere Aromastoffe aufweist.
  7. Mundstück oder Filter 201 nach Anspruch 6, wobei der Aromastoff in einer Aromakapsel bereitgestellt ist.
  8. Mundstück oder Filter 201 nach einem der vorhergehenden Ansprüche, wobei das Filtermaterial Kohlenstoff aufweist, zum Beispiel Aktivkohle.
  9. Mundstück oder Filter 201 nach einem der vorhergehenden Ansprüche, das ferner eine Umhüllung oder ein Filterbelagpapier aufweist.
  10. Mundstück oder Filter 201 nach Anspruch 9, wobei die Umhüllung oder das Filterbelagpapier aus einer Pflanze der Gattung Cannabis abgeleitet ist, zum Beispiel Cannabis sativa, zum Beispiel Cannabis sativa sativa, Cannabis sativa indica oder Cannabis sativa ruderalis oder einem Gemisch davon.
  11. Mundstück oder Filter 201 nach Anspruch 9 oder Anspruch 10, wobei in der Umhüllung und/oder dem Filterbelag Lüftungslöcher bereitgestellt sind.
  12. Mehrfachstab, der mehrere (z.B. 2, 4, 6 usw.) Mundstücke oder Filter 201 nach einem der vorhergehenden Ansprüche aufweist, die Ende an Ende in einer spiegelbildlichen Beziehung einstückig aneinandergefügt sind.
  13. Mundstück oder Filter 201 nach einem der Ansprüche 1 bis 11 zur Verwendung mit einem Raucherartikel, der ein oder mehr rauchbare(s) Material(ien) außer Tabak aufweist, zum Beispiel wobei das rauchbare Material außer Tabak aus einer Pflanze der Gattung Cannabis, zum Beispiel Cannabis sativa, zum Beispiel Cannabis sativa sativa, Cannabis sativa indica oder Cannabis sativa ruderalis oder einem Gemisch davon, hergestellt ist, zum Beispiel wobei das rauchbare Material außer Tabak Oregano und/oder Hanf aufweist.
  14. Verwendung eines Mundstücks oder Filters 201 nach einem der Ansprüche 1 bis 11 zum Filtern des Rauchs eines Raucherartikels, der ein oder mehr rauchbare(s) Material(ien) außer Tabak aufweist, zum Beispiel wobei das rauchbare Material außer Tabak aus einer Pflanze der Gattung Cannabis, zum Beispiel Cannabis sativa, zum Beispiel Cannabis sativa sativa, Cannabis sativa indica oder Cannabis sativa ruderalis oder einem Gemisch davon, hergestellt ist, zum Beispiel wobei das rauchbare Material außer Tabak Oregano und/oder Hanf aufweist.
  15. Raucherartikel, der das Mundstück oder Filter 201 nach einem der Ansprüche 1 bis 11 aufweist, das an einen umhüllten Stab angefügt ist, der ein rauchbares Material außer Tabak aufweist, zum Beispiel wobei das rauchbare Material außer Tabak aus einer Pflanze der Gattung Cannabis, zum Beispiel Cannabis sativa, zum Beispiel Cannabis sativa sativa, Cannabis sativa indica oder Cannabis sativa ruderalis oder einem Gemisch davon, hergestellt ist, zum Beispiel wobei das rauchbare Material außer Tabak Oregano und/oder Hanf aufweist.
EP18783398.3A 2017-10-02 2018-10-01 Filter für einen rauchartikel Revoked EP3651591B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18783398T PL3651591T3 (pl) 2017-10-02 2018-10-01 Filtr do artykułu do palenia
EP20212192.7A EP3804539A1 (de) 2017-10-02 2018-10-01 Filter für einen rauchartikel

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/722,086 US20190098928A1 (en) 2017-10-02 2017-10-02 Smoking article filter
GB1718333.6A GB2568096A (en) 2017-11-06 2017-11-06 Smoking article filter
PCT/EP2018/076578 WO2019068605A1 (en) 2017-10-02 2018-10-01 ARTICLE FILTER FOR SMOKERS

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP20212192.7A Division EP3804539A1 (de) 2017-10-02 2018-10-01 Filter für einen rauchartikel

Publications (2)

Publication Number Publication Date
EP3651591A1 EP3651591A1 (de) 2020-05-20
EP3651591B1 true EP3651591B1 (de) 2020-12-09

Family

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EP18783398.3A Revoked EP3651591B1 (de) 2017-10-02 2018-10-01 Filter für einen rauchartikel
EP20212192.7A Pending EP3804539A1 (de) 2017-10-02 2018-10-01 Filter für einen rauchartikel

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Application Number Title Priority Date Filing Date
EP20212192.7A Pending EP3804539A1 (de) 2017-10-02 2018-10-01 Filter für einen rauchartikel

Country Status (10)

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EP (2) EP3651591B1 (de)
JP (2) JP2020535790A (de)
AU (1) AU2018344403A1 (de)
BR (1) BR112020006272A2 (de)
CA (1) CA3076302A1 (de)
CL (1) CL2020000867A1 (de)
HU (1) HUE053170T2 (de)
LT (1) LT3651591T (de)
PL (1) PL3651591T3 (de)
WO (1) WO2019068605A1 (de)

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WO2023222763A1 (en) * 2022-05-20 2023-11-23 Jt International Sa An aerosol generating article

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Publication number Priority date Publication date Assignee Title
WO2021074222A1 (en) * 2019-10-16 2021-04-22 Essentra Filter Products Development Co. Pte. Ltd A cooling element
EP3747284A1 (de) * 2019-10-16 2020-12-09 Essentra Filter Products Development Co. Pte. Ltd. Kühlelement
JP2023501329A (ja) * 2019-11-06 2023-01-18 エッセントラ フィルター プロダクツ ディベロップメント カンパニー プライベート リミティド フィルタエレメント、マウスピースおよび冷却エレメント
GB202106836D0 (en) * 2021-05-13 2021-06-30 Essentra Filter Products Dev Co Pte Ltd Filter element, mouthpiece and cooling element

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GB1115485A (en) 1965-01-11 1968-05-29 De Rech Tech Ets Filter plugs for tobacco products,particularly for cigarettes
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CN103271437A (zh) 2013-05-22 2013-09-04 广东中烟工业有限责任公司 一种可自行导流的卷烟滤棒及卷烟
WO2014198815A1 (en) 2013-06-13 2014-12-18 Essentra Filter Products Development Co. Pte. Ltd Tobacco smoke filter
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Also Published As

Publication number Publication date
WO2019068605A1 (en) 2019-04-11
HUE053170T2 (hu) 2021-06-28
EP3804539A1 (de) 2021-04-14
PL3651591T3 (pl) 2021-08-02
CL2020000867A1 (es) 2020-09-21
LT3651591T (lt) 2020-12-28
JP2021177763A (ja) 2021-11-18
EP3651591A1 (de) 2020-05-20
AU2018344403A1 (en) 2020-04-23
JP2020535790A (ja) 2020-12-10
CA3076302A1 (en) 2019-04-11
BR112020006272A2 (pt) 2020-10-20

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