EP4069004B1 - Filter für aerosolerzeugende artikel mit neuartigem filtermaterial - Google Patents

Filter für aerosolerzeugende artikel mit neuartigem filtermaterial Download PDF

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Publication number
EP4069004B1
EP4069004B1 EP20812068.3A EP20812068A EP4069004B1 EP 4069004 B1 EP4069004 B1 EP 4069004B1 EP 20812068 A EP20812068 A EP 20812068A EP 4069004 B1 EP4069004 B1 EP 4069004B1
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EP
European Patent Office
Prior art keywords
aerosol
fibres
pha
millimetres
filter segment
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.)
Active
Application number
EP20812068.3A
Other languages
English (en)
French (fr)
Other versions
EP4069004A1 (de
EP4069004C0 (de
Inventor
Stefanos PAPAKYRILLOU
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.)
Philip Morris Products SA
Original Assignee
Philip Morris Products SA
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
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Publication of EP4069004A1 publication Critical patent/EP4069004A1/de
Application granted granted Critical
Publication of EP4069004B1 publication Critical patent/EP4069004B1/de
Publication of EP4069004C0 publication Critical patent/EP4069004C0/de
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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
    • A24D3/06—Use of materials for tobacco smoke filters
    • A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
    • 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • 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
    • A24D3/067—Use of materials for tobacco smoke filters characterised by functional properties
    • A24D3/068—Biodegradable or disintegrable
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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
    • A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
    • A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
    • A24D3/064—Use of materials for tobacco smoke filters characterised by structural features of the fibers having non-circular cross-section

Definitions

  • Conventional aerosol-generating articles such as filter cigarettes, typically comprise a cylindrical rod of tobacco cut filler surrounded by a paper wrapper and a cylindrical filter axially aligned, most often in an abutting end-to-end relationship, with the wrapped tobacco rod.
  • the cylindrical filter typically comprises one or more plugs of a fibrous filtration material, such as cellulose acetate tow, circumscribed by a paper plug wrap.
  • the wrapped tobacco rod and the filter are joined by a band of tipping wrapper, normally formed of an opaque paper material that circumscribes the entire length of the filter and an adjacent portion of the wrapped tobacco rod.
  • RTD resistance to draw
  • the present invention provides a filter for an aerosol-generating article, the filter comprising at least one filter segment comprising a filtration material formed with a plurality of fibres comprising a PHA compound having a value of denier per filament within the range of about 5.0 to 12.0.
  • the PHA containing fibres are referred to below as the "PHA fibres”.
  • the filter segment comprising the plurality of PHA containing fibres is referred to below as the "PHA filter segment”.
  • a PHA filter segment having PHA fibres with a relatively high dpf of between 5.0 and 12.0 has additionally been found to provide a relatively low resistance to draw (RTD), which may be desirable for the design of certain filters, for example where a low filtration efficiency is preferred.
  • the PHA filter segment preferably provides a filtration efficiency of less than 50 percent or more preferably less than 30 percent.
  • the provision of a relatively low RTD may be particularly desirable for heated aerosol-generating articles in which the aerosol-generating substrate is heated rather than combusted to produce an aerosol. In such articles, the use of the PHA filter segment as defined above can advantageously optimise the sensorial experience for the consumer, due to the low filtration efficiency.
  • the denier per filament may be between about 5.5 and about 11.0, or between about 6.0 and about 10.0, or between about 6.5 and about 9.0, or between about 7.0 and about 8.0.
  • the PHA fibres may have a Y-shaped cross-section.
  • the total external surface are of the PHA fibres within the filter segment is preferably between about 0.15 square metres per gram and about 0.21 square metres per gram.
  • the PHA filter segment comprises at least about 20 percent by weight of the PHA fibres, more preferably at least about 30 percent by weight of the PHA fibres, more preferably at least about 40 percent by weight of the PHA fibres, more preferably at least about 50 percent by weight of the PHA fibres, more preferably at least about 60 percent by weight of the PHA fibres, more preferably at least about 70 percent by weight of the PHA fibres, more preferably at least about 80 percent by weight of the PHA fibres, more preferably at least about 90 percent by weight of the PHA fibres, more preferably at least about 95 percent by weight of the PHA fibres.
  • the PHA fibres of the filter according to the invention may be produced using any suitable method. Suitable techniques for the manufacture of PHA fibres would be known to the skilled person and include but are not limited to melt spinning, gel spinning and electrospinning. Preferably, the PHA fibres are produced by melt spinning. Melt spinning is often regarded as the most economical process of spinning, since no solvent needs to be recovered or evaporated, as is by contrast the case with solution spinning. Further, the spinning rate with melt spinning is generally fairly high, which is advantageous in terms of overall productivity and manufacturing efficiency.
  • the PHA filter segment has a length of less than or equal to about 30 millimetres, a length of less than or equal to about 27 millimetres, more preferably, a length of less than or equal to about 25 millimetres, most preferably a length of less than or equal to about 20 millimetres.
  • the length of the PHA filter segment is preferably from about 5 millimetres to about 30 millimetres, more preferably from about 10 millimetres to about 30 millimetres, even more preferably from about 15 millimetres to about 30 millimetres, most preferably from about 20 millimetres to about 30 millimetres.
  • a length of the PHA filter segment may be from about 4 millimetres to about 27 millimetres, and preferably is from about 5 millimetres to about 27 millimetres, more preferably from about 10 millimetres to about 27 millimetres, even more preferably from about 15 millimetres to about 27 millimetres, most preferably from about 20 millimetres to about 27 millimetres.
  • the PHA filter segment preferably has an external diameter that is about equal to the external diameter of the aerosol-generating article.
  • the filter segment has an external diameter of at least 5 millimetres.
  • the PHA filter segment may have an external diameter of between about 5 millimetres and about 12 millimetres, for example of between about 5 millimetres and about 10 millimetres or of between about 6 millimetres and about 8 millimetres.
  • the PHA filter segment has an external diameter of 7.2 millimetres, to within 10 percent.
  • the filter of the present invention comprising the PHA segment finds particular application in heated aerosol-generating articles in which a tobacco material is heated to form an aerosol, rather than combusted. This is at least partly due to the possibility of providing a relatively low level of RTD for the PHA segment with the defined range of dpf, as described above.
  • a tobacco material is heated by one or more electrical heating elements to produce an aerosol.
  • an aerosol is produced by the transfer of heat from a combustible or chemical heat source to a physically separate tobacco material, which may be located within, around or downstream of the heat source.
  • the present invention further encompasses aerosol generating articles in which a nicotine-containing aerosol is generated from a tobacco material, tobacco extract, or other nicotine source, without combustion, and in some cases without heating, for example through a chemical reaction.
  • a non-combustible, substantially air impermeable first barrier 128 is arranged between the proximal end of the combustible heat source 112 and a distal end of the aerosol-generating substrate 114.
  • the first barrier 128 comprises a disc of aluminium foil.
  • the first barrier 128 also forms a heat-conducting member between the combustible heat source 112 and the aerosol-generating substrate 114, for conducting heat from the proximal face of the combustible heat source 112 to the distal face of the aerosol-generating substrate 114.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)

Claims (12)

  1. Aerosolerzeugenden Artikel (10, 100, 310), umfassend:
    ein aerosolerzeugendes Substrat (12, 114, 312);
    einen Filter (18, 122, 314) in axialer Ausrichtung mit dem aerosolerzeugenden Substrat (12, 114, 312), wobei der Filter (18, 122, 314) wenigstens ein Filtersegment (126, 318) aus Filtrationsmaterial aufweist, das aus einer Vielzahl von Fasern gebildet ist, die eine Polyhydroxyalkanoatverbindung umfassen, wobei die Fasern ein Denier pro Filament (dpf) von zwischen 5,0 und 12,0 aufweisen, wobei das wenigstens eine Filtersegment (126, 318) wenigstens 20 Gewichtsprozent der Polyhydroxyalkanoatverbindung umfasst und wobei der Zugwiderstand (RTD) des wenigstens einen Filtersegments (126, 318) zwischen 10 Millimeter H2O und 25 Millimeter H2O liegt.
  2. Aerosolerzeugender Artikel (10, 100, 310) nach Anspruch 1, wobei die Vielzahl von Fasern aus der Polyhydroxyalkanoatverbindung eine runde Querschnittsform aufweisen und eine gesamte Außenfläche innerhalb des Filtersegments (126, 318) zwischen 0,08 Quadratmeter pro Gramm und 0,12 Quadratmeter pro Gramm vorsehen.
  3. Aerosolerzeugender Artikel (10, 100, 310) nach Anspruch 1, wobei die Vielzahl von Fasern aus der Polyhydroxyalkanoatverbindung eine Y-förmige Querschnittsform aufweisen und eine gesamte Außenfläche innerhalb des Filtersegments (126, 318) zwischen 0,15 Quadratmeter pro Gramm und 0,21 Quadratmeter pro Gramm vorsehen.
  4. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das Gesamtdenier der die Polyhydroxyalkanoatverbindung umfassenden Fasern zwischen 15.000 und 30.000 liegt.
  5. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das Filtrationsmaterial ferner eine Vielzahl von Fasern aus wenigstens einem zusätzlichen, biologisch abbaubaren Polymer umfasst.
  6. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das die Vielzahl von die Polyhydroxyalkanoatverbindung umfassenden Fasern aufweisende Filtersegment ferner wenigstens 5 Gewichtsprozent an Polyethylenglykol aufweist.
  7. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das die Vielzahl von die Polyhydroxyalkanoatverbindung umfassenden Fasern aufweisende Filtersegment (126, 318) eine durchschnittliche radiale Härte von wenigstens 80 Prozent aufweist.
  8. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das die Vielzahl von die Polyhydroxyalkanoatverbindung umfassenden Fasern aufweisende Filtersegment (126, 318) von einer Umhüllung (20) mit einem Flächengewicht von wenigstens 100 Gramm pro Quadratmeter (g/m2) umhüllt ist.
  9. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das die Vielzahl von die Polyhydroxyalkanoatverbindung umfassenden Fasern aufweisende Filtersegment (126, 318) die Form eines hohlen rohrförmigen Elements (14) aufweist.
  10. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das aerosolerzeugende Substrat eine Länge zwischen etwa 5 Millimeter und etwa 15 Millimeter aufweist.
  11. Aerosolerzeugender Artikel (10, 100, 310) nach einem beliebigen vorhergehenden Anspruch, wobei das Filtersegment ferner eine Kapsel innerhalb der Vielzahl der die Polyhydroxyalkanoatverbindung umfassenden Fasern umfasst.
  12. Filter für einen aerosolerzeugenden Artikel (10, 100, 310), wobei der Filter wenigstens ein Filtersegment aus Filtrationsmaterial aufweist, das aus einer Vielzahl von Fasern gebildet ist, die eine Polyhydroxyalkanoatverbindung umfassen, wobei die Fasern ein Denier pro Filament (dpf) von zwischen 5,0 Denier und 12,0 Denier aufweisen, wobei das wenigstens eine Filtersegment wenigstens 20 Gewichtsprozent der Polyhydroxyalkanoatverbindung umfasst und wobei der Zugwiderstand (RTD) des wenigstens einen Filtersegments zwischen 10 Millimeter H2O und 25 Millimeter H2O liegt.
EP20812068.3A 2019-12-03 2020-11-30 Filter für aerosolerzeugende artikel mit neuartigem filtermaterial Active EP4069004B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19386050 2019-12-03
PCT/EP2020/083959 WO2021110596A1 (en) 2019-12-03 2020-11-30 Aerosol-generating article filter having novel filtration material

Publications (3)

Publication Number Publication Date
EP4069004A1 EP4069004A1 (de) 2022-10-12
EP4069004B1 true EP4069004B1 (de) 2023-10-04
EP4069004C0 EP4069004C0 (de) 2023-10-04

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Application Number Title Priority Date Filing Date
EP20812068.3A Active EP4069004B1 (de) 2019-12-03 2020-11-30 Filter für aerosolerzeugende artikel mit neuartigem filtermaterial

Country Status (7)

Country Link
US (1) US20230000140A1 (de)
EP (1) EP4069004B1 (de)
JP (1) JP2023505461A (de)
KR (1) KR20220110511A (de)
CN (1) CN114745977A (de)
BR (1) BR112022010055A2 (de)
WO (1) WO2021110596A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116322386A (zh) * 2020-10-09 2023-06-23 菲利普莫里斯生产公司 具有通风腔和上游元件的气溶胶生成制品
CN116649614A (zh) * 2022-02-17 2023-08-29 上海烟草集团有限责任公司 一种气溶胶生成制品

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120000480A1 (en) * 2010-06-30 2012-01-05 Sebastian Andries D Biodegradable cigarette filter
US9119419B2 (en) * 2012-10-10 2015-09-01 R.J. Reynolds Tobacco Company Filter material for a filter element of a smoking article, and associated system and method
WO2014102096A2 (en) * 2012-12-31 2014-07-03 Philip Morris Products S.A. Smoking article including flow restrictor
CN104902768B (zh) * 2012-12-31 2019-12-24 菲利普莫里斯生产公司 用于制造用于吸烟制品的过滤嘴的方法和设备
EP3794966A1 (de) 2013-07-16 2021-03-24 Philip Morris Products S.a.s. Rundum fester rauchartikelfilter
MX2018011277A (es) 2016-03-24 2019-02-13 Philip Morris Products Sa Articulo generador de aerosol con porcion de envoltura de boquilla removible con lengüeta de arranque.

Also Published As

Publication number Publication date
EP4069004A1 (de) 2022-10-12
CN114745977A (zh) 2022-07-12
KR20220110511A (ko) 2022-08-08
BR112022010055A2 (pt) 2022-08-16
WO2021110596A1 (en) 2021-06-10
US20230000140A1 (en) 2023-01-05
EP4069004C0 (de) 2023-10-04
JP2023505461A (ja) 2023-02-09

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