[go: up one dir, main page]

WO2018065191A1 - Élément filtrant pour article à fumer - Google Patents

Élément filtrant pour article à fumer Download PDF

Info

Publication number
WO2018065191A1
WO2018065191A1 PCT/EP2017/073411 EP2017073411W WO2018065191A1 WO 2018065191 A1 WO2018065191 A1 WO 2018065191A1 EP 2017073411 W EP2017073411 W EP 2017073411W WO 2018065191 A1 WO2018065191 A1 WO 2018065191A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter element
filter
cavity
adsorbent
tube
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.)
Ceased
Application number
PCT/EP2017/073411
Other languages
English (en)
Inventor
Jan Fuhrmann
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.)
Reemtsma Cigarettenfabriken GmbH
Original Assignee
Reemtsma Cigarettenfabriken GmbH
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
Application filed by Reemtsma Cigarettenfabriken GmbH filed Critical Reemtsma Cigarettenfabriken GmbH
Priority to JP2019517919A priority Critical patent/JP6889256B2/ja
Priority to UAA201903049A priority patent/UA125220C2/uk
Priority to RU2019108742A priority patent/RU2711275C1/ru
Publication of WO2018065191A1 publication Critical patent/WO2018065191A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/12—Use of materials for tobacco smoke filters of ion exchange materials
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/163—Carbon
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/16—Use of materials for tobacco smoke filters of inorganic materials
    • A24D3/166—Silicic acid or silicates

Definitions

  • the present invention relates generally to a filter element for a smoking article and to a smoking article including such a filter element.
  • Filter elements for smoking articles are generally known in the art. Such filter elements are basically used to screen out filterable materials in the smoke generated during smoking.
  • the invention is mainly directed to filter elements for conventional smoking articles, such as cigarettes.
  • smoking article and “smoking” are intended to include both conventional smoking articles, such as cigarettes, where tobacco is combusted in order to generate inhalable smoke, as well as electronic smoking or vaping devices, such as e-cigarettes or shishas, where a respective liquid is vaporized or atomized in order to generate inhalable vapor.
  • electronic smoking or vaping devices such as e-cigarettes or shishas
  • Such vapor is also referred to as “smoke” below.
  • Smoking sensation can be influenced by filter elements in various ways. It is an object of the present invention to suggest a new filter element which provides both effective filtering action and satisfying smoking sensation.
  • a filter element for use in a smoking article.
  • the filter element is formed from a conventional filter material, such as cellulose acetate.
  • the filter element includes a cavity that is devoid of filter material, wherein a surface of the cavity, i.e. a surface of the filter element facing the cavity, is at least partially provided with at least one adsorbent.
  • the respective surface is partially or completely provided with one adsorbent.
  • the surface of the filter element facing the cavity may be provided with a first adsorbent in a first area of the surface and with a second adsorbent that is different from the first adsorbent in a second area of the surface, which second area at least partially differs from the first area.
  • the adsorbent can be at least one of a group of adsorbents including activated carbon, zeolites, alumina, silica, silica gel, ion exchange resins, polyester resins, sepiolite, and carbon species, such as impregnated carbon, activated carbon fibres, or highly activated carbon. Further suitable adsorbents and/or catalysts that are known in the art for filtering smoke or removing components from smoke can be used.
  • the cavity forms a channel that extends into the filter element and at least partially along a longitudinal direction of the filter element.
  • the cavity or channel extends along a direction along which smoke is drawn during operation of a smoking article including the filter element, i.e. when the user draws or puffs on the smoking article.
  • the cavity or channel extends into the filter element from a mouth side.
  • the channel or cavity may extend into the filter element from a rod side.
  • the channel completely extends through the filter element, preferably along the longitudinal direction of the filter element.
  • the cavity or channel devoid of filter material allows at least a certain amount of smoke to proceed through the filter element without being filtered, i.e. with original taste that is not altered by passing filter element material. Thereby, smoking sensation can be enhanced.
  • a certain filtering or retention effect can be provided with respect to the portion of the smoke that passes through the cavity or channel, and not through the filter material surrounding the cavity or channel.
  • providing the adsorbent on the inner surface of the cavity, and not embedded into the filter material results in a lower pressure drop compared to a solution in which the adsorbent is embedded into the filter material.
  • Form and dimension of the cavity or channel can vary. Needless to say that the above mentioned effect of the cavity or channel increases with proportional to the size or volume of the cavity in relation to the size or volume of the filter element, i.e. the filter material surrounding the cavity or channel. It is also possible to provide more than one cavity or channel. Thereby, in particular the area of active surface, i.e. surface that is provided with the adsorbent, can be increased, which raises the retention effect of the adsorbent.
  • One or more channels may e.g. extend in parallel along a longitudinal direction of the filter element, which generally has a circular-cylindrical form.
  • the channel or channels can have a circular-cylindrical form, and can partially, in the form of a blind hole, or completely, in the form of a through hole, extend into/through the filter element.
  • the cavity or channel is formed directly in the filter element, i.e. the surface of the filter element facing the cavity is formed by filter material.
  • the adsorbent is directly applied to the inner surface of the cavity, i.e. to the filter material in this area.
  • the cavity or channel is a tube that is formed from a preferably self-supporting, sheet-like tube material.
  • the cavity or channel has a wall separate from the filter material of the filter element.
  • a tube material differs form the filter material.
  • the tube can also be formed by the same material, such as cellulose acetate. Providing such a tube in advance may serve to simplify the production of the inventive filter element.
  • the tube may be formed as a single central or inner core of the filter element, which central core, in the finished filter element, is surrounded by filter material.
  • Suitable tube materials are e.g. paper materials or polymeric materials known in the art.
  • the tube material can include one or a plurality of layers, e.g. two to three paper layers.
  • At least the inner surface of the tube material facing the cavity of the tube is at least partially provided with the adsorbent.
  • the adsorbent can be applied to the respective surface by any suitable application technology.
  • the tube material may already include the adsorbent.
  • charcoal paper may be used as tube material or as a layer of a multilayered tube material.
  • the tube material includes multiple layers, at least the innermost layer of the multiple layers, i.e. the layer that faces the cavity of the tube, includes the adsorbent.
  • a cavity or channel directly formed in the filter element can partially be lined with a lining material corresponding to the tube material.
  • the adsorbent may be applied to or integrated into the lining material as described above with respect to the tube material.
  • the tube material or lining material it is possible to color or print the tube material or lining material, at least on the surface facing the cavity, in order to achieve visual differentiation and recognizability.
  • An inventive smoking article includes an above described filter element.
  • the smoking article in the form of a conventional cigarette, includes a wrapped tobacco rod and a filter.
  • the filter consists of or includes at least one of the inventive filter elements.
  • the wrapped tobacco rod and the filter are connected by a tipping paper which overwraps the filter and a part of the wrapped tobacco rod.
  • the filter includes at least a first filter element and a second filter element of the above described type, wherein a surface of the first filter element facing the cavity of the first filter element is provided with a first adsorbent, and wherein a surface of the second filter element facing the cavity of the second filter element is provided with a second adsorbent that is different from the first adsorbent.
  • Figure 1 A is a schematic cross-sectional illustration of an exemplary filter element according to a first embodiment
  • Figure 1 B shows the filter element of Fig. 1 A in front view
  • Figure 2 is a schematic cross-sectional illustration of an exemplary filter element according to a second embodiment
  • Figure 3A is a schematic cross-sectional illustration of an exemplary filter element according to a first variant of a third embodiment
  • Figure 3B is a schematic cross-sectional illustration of an exemplary filter element according to a second variant of the third embodiment
  • Figure 4 is a schematic cross-sectional illustration of an exemplary filter element according to a fourth embodiment
  • Figure 5A is a schematic cross-sectional illustration of an exemplary filter element according to a fifth embodiment
  • Figure 5B shows the filter element of Fig. 5A in front view
  • Figure 6A is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 4;
  • Figure 6B is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 4 as a first filter element and a variant of the filter element of Fig. 4 as a second filter element; and
  • Figure 6C is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 2.
  • Figure 1A is a schematic cross-sectional illustration of an exemplary filter element 10 according to a first embodiment.
  • Figure 1 B shows the filter element 10 of Fig. 1 A in front view.
  • the filter element 10 is formed from a conventional filter material 20, such as cellulose acetate. Other filter materials known in the art can likewise be used.
  • the filter material 20 may be wrapped in a plug wrap (not shown).
  • the filter element 10 has a circular-cylindrical form. Similar forms can also be used.
  • the length of the filter element 10 (in the longitudinal direction L) can vary between about 5mm and 40mm, preferably between 6mm and 30mm.
  • the diameter D of the filter element 10 may also vary between about 2mm and 15mm, preferably between 4mm and 10mm.
  • the filter element 10 includes a cavity (or channel) 30, which extends into the filter element 10 along the longitudinal direction L.
  • the cavity 30 is devoid of filter material 20. Form and size of the cavity can vary.
  • the cavity 30 can e.g. have the form of a blind hole, as in Fig. 1A, and extend into the filter element up to a certain depth, depending on the length of the filter element. Preferably, the depth of the cavity 30 is at least 1/3 of the length of the filter element 10.
  • the cavity can also be circular-cylindrical.
  • An inner diameter d may vary, depending on the diameter D of the filter element 10.
  • the cross-sectional area of the cavity 30 should be at least 3mm 2 , preferably between 10mm 2 and 30mm 2 . In other words, in case the cavity is circular-cylindrical, the diameter of the cavity should be at least 1 mm, preferably between 3mm and 7mm.
  • At least part of the inner surface of the cavity 30 is provided with an adsorbent 40.
  • adsorbents can be provided on the surface of the cavity 30.
  • Adsorbents can e.g. be selected from a group including activated carbon, zeolites, alumina, silica, silica gel, ion exchange resins, polyester resins, sepiolite, and carbon species, such as impregnated carbon, activated carbon fibres, or highly activated carbon. Further suitable adsorbents and/or catalysts that are known in the art for filtering smoke or removing components from the smoke can be used.
  • the adsorbent 40 can be applied to the inner surface of the filter element facing the cavity, which surface is formed by filter material 20, by any suitable application technology.
  • Figure 2 is a schematic cross-sectional illustration of an exemplary filter element 1 10 according to a second embodiment.
  • the filter element 1 10 of Fig. 2 mainly differs from the filter element 10 in Fig. 1A in that the cavity 130 now forms a channel that completely extends through the filter element 1 10 along the longitudinal direction. Further, not only part of the inner surface of the cavity 130 is provided with the adsorbent, but essentially the entire surface.
  • Figures 3A and 3B are a schematic cross-sectional illustrations of a first and second variant of an exemplary filter element 210 according to a third embodiment.
  • the cavity 130 is provided by a tube formed from a tube material 50.
  • the tube forms a single central or inner core of the filter element 210, 210', which inner core is surrounded by filter material 20.
  • the tube material 50 can e.g. be a paper material or a suitable polymeric material.
  • the inner surface of the tube material that faces the cavity of the tube is provided with one adsorbent 40.
  • a first area of the inner surface of the tube material 50 facing the cavity of the tube is provided with a first adsorbent 40, while a second area of the inner surface of the tube material facing the cavity is provided with second adsorbent 40' different from the first adsorbent 40.
  • the first area and the second area may partially overlap.
  • the tube material 50 is self-supporting, so that the tube can be formed in advance and has a predefined stability with respect to collapsing.
  • the thickness of the tube material 50 defining a thickness of a wall of the tube, can vary, e.g. between about 0.1 mm to 1 mm.
  • Figure 4 is a schematic cross-sectional illustration of an exemplary filter 310 element according to a fourth embodiment.
  • This embodiment differs from the embodiments in Fig. 3A, 3B in that in the filter element 310 the adsorbent 40 is not only applied to the inner surface of the tube material facing the tube, but the tube material 150 itself already includes the absorbent 40, i.e. the adsorbent 40 is integrated or embedded into the tube material 150.
  • Charcoal paper would e.g. represent a respective tube material 150.
  • Figure 5A is a schematic cross-sectional illustration of an exemplary filter element 410 according to a fifth embodiment.
  • Figure 5B shows the filter element of Fig. 5A in front view.
  • the filter element 410 of Fig. 5 differs from the filter element 310 of Fig. 4 (and the other filter elements described above) in that a plurality of cavities or channels 230, 231 , 231 , 233 is included in the filter element 410.
  • the number of cavities or channels may vary, e.g. between 1 and 5.
  • the sum of the surface areas of the channels can be increased compared to the provision of only one channel having the same cross-sectional area as the sum of the cross-sectional areas of the plurality of channels.
  • a plurality of channels or cavities can be included into the respective filter elements.
  • Figure 6A is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 4
  • Figure 6B is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 4 as a first filter element and a variant of the filter element of Fig. 4 as a second filter element
  • Figure 6C is a schematic cross-sectional illustration of an exemplary smoking article including the filter element of Fig. 2.
  • FIG 6A illustrates, in a longitudinal view, a smoking article 80 in the form of a cigarette.
  • the cigarette comprises a wrapped tobacco rod 60, which includes an amount of a tobacco blend wrapped in a cigarette paper (not shown), and a filter.
  • the filter is composed of the filter elements 510 and 310, where the filter element 310 is the filter element described above with reference to Fig. 4.
  • the filter element 510 simply consists of a suitably filter material, e.g. the filter material 20 discussed above, e.g. cellulose acetate, which can be wrapped in a plug wrap (not shown).
  • the filter 510, 310 is connected to the wrapped tobacco rod 60 by a tipping paper 70, which overwraps the filter, i.e. the filter elements 510, 310, and a part of the wrapped tobacco rod 60.
  • the filter can be designed as a filter having more than one segment, namely the filter elements 510, 310. The ordering of these filter elements, along the longitudinal direction of the smoking article can be changed. Further, any one of the filter elements 10, 1 10, 210, 410, 510 may be used instead of the filter element 310 in the embodiment according to Fig. 6A.
  • the smoking article 180 shown in Fig. 6B differs from the smoking article according to Fig. 6A in that instead of the filter element 510 (without cavity) a second inventive filter element 310' forms part of the filter.
  • the filter element 310' differs from the filter element 310 by the adsorbent 40' included in the tube material 150', which differs from the absorbent 40 included in the tube material 150 of the filter element 310. According to this embodiment, different effects that can be achieved by different adsorbents can be combined.
  • filter elements including different adsorbents can be combined in this way.
  • filter elements without tube material as described e.g. with reference to Fig. 2, and/or filter elements where the adsorbent is only applied to the tube material (as shown in Fig. 3A) can be used.
  • the filter can also only comprise one filter element, e.g. the filter element 1 10 according to Fig. 2 (or any other filter element described above).
  • a filter element as described with reference to Fig. 3B may be used, i.e. a filter element in which different areas of the surface of the filter element facing the cavity or channel are provided with different adsorbents.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

On décrit un élément filtrant (10) utilisable dans un article à fumer (80), qui est réalisé à partir d'une matière filtrante classique (20), telle que l'acétate de cellulose. L'élément filtrant (10) présente une cavité (30) dépourvue de matière filtrante (20). Une surface de l'élément filtrant faisant face à la cavité (30) est au moins partiellement munie d'au moins un adsorbant (40).
PCT/EP2017/073411 2016-10-07 2017-09-18 Élément filtrant pour article à fumer Ceased WO2018065191A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2019517919A JP6889256B2 (ja) 2016-10-07 2017-09-18 喫煙品用のフィルタ要素
UAA201903049A UA125220C2 (uk) 2016-10-07 2017-09-18 Фільтруючий елемент для курильного виробу
RU2019108742A RU2711275C1 (ru) 2016-10-07 2017-09-18 Фильтрующий элемент для курительного изделия

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP16192750.4A EP3305102B1 (fr) 2016-10-07 2016-10-07 Élément de filtre pour article à fumer
EP16192750.4 2016-10-07

Publications (1)

Publication Number Publication Date
WO2018065191A1 true WO2018065191A1 (fr) 2018-04-12

Family

ID=57133020

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2017/073411 Ceased WO2018065191A1 (fr) 2016-10-07 2017-09-18 Élément filtrant pour article à fumer

Country Status (7)

Country Link
EP (1) EP3305102B1 (fr)
JP (1) JP6889256B2 (fr)
ES (1) ES2774441T3 (fr)
PL (1) PL3305102T3 (fr)
RU (1) RU2711275C1 (fr)
UA (1) UA125220C2 (fr)
WO (1) WO2018065191A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3607839A1 (fr) * 2018-08-07 2020-02-12 Gongqingcheng Daole Investment Management Partnership (LLP) Dispositif de filtrage de fumée
TWI707635B (zh) * 2018-08-10 2020-10-21 大陸商共青城道樂投資管理合夥企業有限公司 煙氣過濾裝置
GB2588212B (en) * 2019-10-16 2024-05-29 Essentra Filter Products Dev Co Pte Ltd A cooling element
CN112273740A (zh) * 2020-11-16 2021-01-29 深圳纯享自然科技有限公司 一种加热不燃烧制品硅胶降温段

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438381A (en) * 1967-02-01 1969-04-15 Edith A Hale Filter for tobacco products
DE3444991A1 (de) * 1984-12-10 1986-06-19 Hans Balsthal Elstner Filter fuer rauchwaren und rauchgeraete
WO2004080217A1 (fr) * 2003-03-07 2004-09-23 Virginia Commonweath University Matieres phenoliques soumises a un traitement electrique et procedes
US20050133053A1 (en) * 2003-12-22 2005-06-23 Philip Morris Usa Inc. Smoking articles comprising copper-exchanged molecular sieves
TW201132303A (en) * 2010-03-31 2011-10-01 Japan Tobacco Inc Charcoal filter and cigarette
US20120255569A1 (en) * 2011-04-08 2012-10-11 Rj Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404890A (en) * 1993-06-11 1995-04-11 R. J. Reynolds Tobacco Company Cigarette filter
JP3208731B2 (ja) * 1998-05-01 2001-09-17 三菱レイヨン株式会社 デュアル構造フィルター付きたばこ
CN105876854A (zh) * 2015-06-10 2016-08-24 江苏大亚滤嘴材料有限公司 中空异型三元滤棒及其制造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438381A (en) * 1967-02-01 1969-04-15 Edith A Hale Filter for tobacco products
DE3444991A1 (de) * 1984-12-10 1986-06-19 Hans Balsthal Elstner Filter fuer rauchwaren und rauchgeraete
WO2004080217A1 (fr) * 2003-03-07 2004-09-23 Virginia Commonweath University Matieres phenoliques soumises a un traitement electrique et procedes
US20050133053A1 (en) * 2003-12-22 2005-06-23 Philip Morris Usa Inc. Smoking articles comprising copper-exchanged molecular sieves
TW201132303A (en) * 2010-03-31 2011-10-01 Japan Tobacco Inc Charcoal filter and cigarette
US20120255569A1 (en) * 2011-04-08 2012-10-11 Rj Reynolds Tobacco Company Filtered cigarette comprising a tubular element in filter

Also Published As

Publication number Publication date
PL3305102T3 (pl) 2020-05-18
RU2711275C1 (ru) 2020-01-16
EP3305102B1 (fr) 2019-11-27
EP3305102A1 (fr) 2018-04-11
UA125220C2 (uk) 2022-02-02
JP2019534697A (ja) 2019-12-05
ES2774441T3 (es) 2020-07-21
JP6889256B2 (ja) 2021-06-18

Similar Documents

Publication Publication Date Title
TWI654942B (zh) 包含液體傳送構件及包覆材的菸品
RU138230U1 (ru) Курительное изделие, содержащее наружную обертку с вырезанной частью
EP2775867B1 (fr) Article à fumer avec segment de changement de couleur
CN102458162B (zh) 吸烟物品和制造吸烟物品的方法
JP5990273B2 (ja) 指標を有する唇側端部キャビティを備えた喫煙物品
WO2018065191A1 (fr) Élément filtrant pour article à fumer
RU2625736C2 (ru) Курительное изделие, содержащее табак высокой плотности
KR20200027581A (ko) 흡연 용품 및 흡연 용품용 마우스피스
EP2579736B1 (fr) Filtre pour la fumée de tabac
MX2013015099A (es) Filtro de articulo para fumar y unidad de filtro insertable para el mismo.
WO2009106374A1 (fr) Filtre pour article à fumer
JP2010511400A (ja) タバコ煙用フィルターおよびその製造方法
JP2571220B2 (ja) 巻煙草フィルタ−およびそれを付けたフィルタ−付き巻煙草
JP6651495B2 (ja) 同心フィルタ付きの喫煙物品
WO2013042609A1 (fr) Cigarette
EP2949225B1 (fr) Article à fumer
US20250268296A1 (en) Smoking tip with selectively infused flavor chamber
JP3164088U (ja) プロポリスフィルターを備えたタバコ
EP3167727A1 (fr) Article à fumer
HK1208600B (en) Smoking article with concentric filter
CA3192436A1 (fr) Dispositif de filtration de fumee
HK1228209B (en) Multi-segment filter tube
HK1228209A1 (en) Multi-segment filter tube
HK1200661B (en) Smoking article with colour change segment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17767846

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2019517919

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17767846

Country of ref document: EP

Kind code of ref document: A1