EP2326189A1 - Filtre destiné à un article pour fumeur - Google Patents

Filtre destiné à un article pour fumeur

Info

Publication number
EP2326189A1
EP2326189A1 EP09769118A EP09769118A EP2326189A1 EP 2326189 A1 EP2326189 A1 EP 2326189A1 EP 09769118 A EP09769118 A EP 09769118A EP 09769118 A EP09769118 A EP 09769118A EP 2326189 A1 EP2326189 A1 EP 2326189A1
Authority
EP
European Patent Office
Prior art keywords
filter
plug
tobacco product
wrapper
longitudinally extending
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.)
Withdrawn
Application number
EP09769118A
Other languages
German (de)
English (en)
Inventor
Paulo Oliveira
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.)
British American Tobacco Investments Ltd
Original Assignee
British American Tobacco Investments Ltd
British American Tobacco Co 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
Application filed by British American Tobacco Investments Ltd, British American Tobacco Co Ltd filed Critical British American Tobacco Investments Ltd
Publication of EP2326189A1 publication Critical patent/EP2326189A1/fr
Withdrawn legal-status Critical Current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
    • A24D3/17—Filters 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
    • 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
    • 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
    • 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
    • A24D3/06—Use of materials for tobacco smoke filters
    • 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

Definitions

  • This invention relates to a filter for a smoking article.
  • smoking article includes smokeable products such as cigarettes, cigars and cigarillos whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes and also heat- not-burn products.
  • Filters commonly include adsorbent materials such as activated carbon to reduce certain components of the smoke during smoking.
  • activated carbon in a filter can significantly affect the taste/flavour characteristics of a cigarette.
  • a filter element for a smoking article comprising a plug of filter material having a longitudinally extending surface, a wrapper wrapped around the longitudinally extending surface of the plug of filter material and a tobacco product provided between the longitudinally extending surface of the plug of filter material and the wrapper so as to cover at least a part of the longitudinally extending surface.
  • the tobacco product may cover only a part of the longitudinally extending surface of the plug of filter material.
  • the tobacco product may be provided in longitudinal stripes between the longitudinally extending surface of the plug of filter material and the wrapper.
  • the tobacco product may cover substantially an entire inner surface of the wrapper.
  • the tobacco product may be in contact with the longitudinally extending surface of the plug of filter material.
  • the tobacco product may be adhered to an inner surface of the wrapper.
  • An adhesive comprising the tobacco product may be applied to an inner surface of the wrapper.
  • the tobacco product may comprise shredded tobacco.
  • the tobacco product may comprise powdered tobacco.
  • the tobacco product may comprise shredded or powdered reconstituted tobacco.
  • the tobacco product may comprise cut tobacco.
  • a filter for a smoking article comprising one or more of the filter elements.
  • a section of the filter may comprise activated carbon and the coverage of the tobacco product may be confined to the longitudinally extending surface of this section.
  • a filter element for a smoking article comprising a plug of filter material having a longitudinally extending surface, and a wrapper wrapped around the longitudinally extending surface of the plug of filter material, wherein the wrapper comprises reconstituted tobacco material.
  • the reconstituted tobacco material may be reconstituted tobacco paper.
  • the wrapper may comprise a plug wrap.
  • a smoking article including the filter element described above.
  • a filter element for a smoking article comprising a plug of filter material having a longitudinally extending surface, and a wrapper wrapped around the longitudinally extending surface of the plug of filter material, wherein the wrapper comprises reconstituted tobacco material.
  • the reconstituted tobacco material may be reconstituted tobacco paper.
  • the wrapper may comprise a plug wrap.
  • a smoking article comprising a filter element according to claim 12, 13 or 14.
  • a method of manufacturing a filter element for a smoking article comprising providing a tobacco product between a longitudinally extending surface of a plug of filter material and a wrapper so as to cover at least a part of the longitudinally extending surface.
  • the method may comprise adhering the tobacco product to an inner surface of the wrapper. - A -
  • the method may comprise confining coverage of the tobacco product to only a part of the longitudinally extending surface.
  • the method may further comprise confining the tobacco product to the longitudinally extending surface of a section of the filter element comprising activated carbon.
  • the method may comprise applying an adhesive comprising the tobacco product to an inner surface of the wrapper.
  • Figure 1 is a perspective view of a smoking article including a rod of smokeable material, a filter and tipping paper attaching the rod and filter together.
  • Figure 2 is a perspective view of a plug of filter material having a first end face, a second end face and a longitudinally extending surface.
  • Figure 3 is perspective view of a filter element including a plug of filter material and a wrapper in the form of a plug wrap.
  • Figure 4 is a perspective view of a filter element in which a tobacco product is adhered to an inner surface of the plug wrap.
  • Figure 5 is a perspective view of first and second filter elements with abutting end faces.
  • Figure 6 is a cross-sectional view of first and second filter elements with abutting end faces, in which the first filter element includes activated carbon.
  • Figure 7 is a cross-sectional view of an end face of a filter element including activated carbon.
  • Figure 8 is a perspective view of a filter comprising abutting first and second filter elements wrapped with an outer wrapper.
  • Figure 9 is a perspective view of first and second filter elements for a filter, in which the second filter element includes a tobacco product adhered to the inner surface of its plug wrap.
  • Figure 10 is a perspective view of a filter element in which stripes of adhesive are applied to the inner surface of the plug wrap.
  • Figure 11 illustrates a process for preparing a plug wrap for use in a filter element.
  • Figure 12 is a perspective illustration of the wrapping of a cylindrical tow of filter material by a wrapper.
  • Figure 13 shows a sequence of method steps for manufacturing a filter element.
  • a smoking article in the form of a cigarette 100 includes a filter 200 in accordance with the invention.
  • the cigarette 100 comprises a generally cylindrical paper-wrapped rod 110 of smokeable material such as tobacco, which is co-axially attached to the filter 200 by tipping paper 300 glued around one end of the rod 110 and the filter 200.
  • the filter 200 comprises a generally cylindrical tow of filter material.
  • the cylindrical tow of filter material comprises one or more sections, each of which may have a different material composition.
  • each section corresponds to one of a plurality of generally cylindrical plugs of filter material 210 in one of a corresponding number of discrete filter elements which make up the filter 200.
  • the filter 200 may be of integral construction such that the individual sections correspond to portions of a single, continuous plug of filter material in a single filter element.
  • the plug of filter material 210 in the filter element 214 has first and second generally circular end faces 211, 212 and a circumferential or longitudinally extending surface 213 substantially perpendicular to the first and second end faces 211, 212.
  • the plug of filter material 210 in the filter element 214 is wrapped by a layer of sheet material in the form of a wrapper, or plug wrap 220.
  • the plug wrap 220 is wrapped around the longitudinally extending surface 213 of the plug of filter material 210 so as to leave the first and second end faces 211, 212 of the plug 210 open.
  • the plug wrap 220 is held in place around the plug of filter material 210 by gluing along a seam of overlapping material. This may be achieved using a stripe of suitable adhesive 230, such as a conventional PVA material.
  • the plug wrap 220 could be adhered directly to the surface 213 of the filter material 210, for example by applying a plurality of stripes of adhesive 230 to the inner surface 221 of the plug wrap 220.
  • the application of stripes of adhesive 230 to the plug wrap 230 is shown in Figure 11.
  • the plug wrap 220 may be formed of conventional paper materials. However, the plug wrap 220 may alternatively or additionally comprise tobacco or reconstituted tobacco material. The plug wrap 220 could also be formed entirely from reconstituted tobacco material, such as a sheet of reconstituted tobacco paper. The reconstituted tobacco material may have a different colour to the plug of filter material in order to provide visual differentiation. For example, the reconstituted tobacco material may have a bright colour such as yellow or blue to clearly contrast with a white cellulose acetate plug of filter material and a brown tipping paper.
  • the filter element 214 further includes a tobacco product 240 located between the longitudinally extending surface 213 of its plug of filter material 210 and the inner surface 221 of its plug wrap 220.
  • the tobacco product 240 may, for example, take the form of shredded or powdered tobacco. Typically, the tobacco product 240 will take the form of cut tobacco. Alternatively, the tobacco product 240 may comprise strands or particles of reconstituted tobacco or tobacco containing paper, or may be any combination of the above.
  • the tobacco product 240 may be adhered to the inner surface 221 of the plug wrap 220 using a suitable adhesive, such that the tobacco product 240 covers all or a part of the longitudinally extending surface 213 of the plug of filter material 210 when wrapped by the plug wrap 220.
  • the tobacco product 240 may be in direct contact with the longitudinally extending surface 213 of the plug of filter material 210.
  • the filter 200 comprises a plurality of filter elements.
  • An example of a filter 200 in accordance with the invention is discussed below in relation to Figures 6 to 8.
  • the filter 200 comprises a first filter element 214 containing a tobacco product 240 as described above, and a second filter element 215 not containing a tobacco product.
  • the form and manufacture of the second filter element 215 may simply correspond to that of the first filter element 214, with the tobacco product 240 omitted.
  • the first filter element additionally comprises activated an adsorbent such as activated carbon.
  • the first and second filter elements 214, 215 are generally cylindrical, discrete filter elements 214, 215 of substantially equivalent diameter.
  • the filter material 210 in the second filter element 215 is composed of cellulose acetate, whilst the filter material 210 in the first filter element 214 comprises both cellulose acetate and an adsorbent such as activated carbon.
  • the activated carbon may be in the form of granular activated carbon 216 and is distributed evenly throughout the volume of the plug of cellulose acetate 210 in a "Dalmatian" style, as is known in the art. Cross-sectional views showing this arrangement are provided in Figures 6 and 7.
  • the activated carbon may be sprinkled onto a sticky exterior surface 213 of the plug of cellulose acetate 210, or may be adhered to a cotton thread surrounded by the plug of cellulose acetate 210.
  • the activated carbon could also be held in a cavity surrounded by the plug of cellulose acetate 210.
  • the filter 200 may comprise more than two filter elements.
  • the filter 200 may comprise first and second filter elements composed of cellulose acetate and a third filter element comprising cellulose acetate and activated carbon, as described above.
  • the filter element comprising activated carbon is sandwiched between the two elements composed of cellulose acetate.
  • the filter elements 214, 215 may be arrayed in the filter 200 in a plurality of alternative orders. At least one of the filter elements contains a tobacco product 240 as described above.
  • the filter elements 214, 215 are arranged longitudinally of one another with the end face 211, 212 of each filter element 214, 215 abutting the next.
  • the filter elements 214, 215 are wrapped by an outer wrapper 250, which may be held in place around the filter elements 214, 215 by gluing along a seam of overlapping material in a similar manner to the plug wraps 220.
  • the outer wrapper 250 may complete the assembly of the filter 200.
  • the filter 200 is located at a mouth-end of the smoking article 100 such that a gaseous flow, comprising smoke drawn from the rod 110 of smokeable material, moves through the filter 200 before entering the mouth of a smoker.
  • the tobacco product 240 is located in one or more filter elements 214, 215 between the inner surface 221 of a plug wrap 220 and the longitudinally extending surface 213 of a plug of filter material 210, as described in relation to Figure 4. In this way, the tobacco product 240 is in close proximity with the path of the gaseous flow as it moves through the filter 200 and is therefore able to affect the characteristics of the gaseous flow before the flow reaches the smoker's mouth.
  • the tobacco product 240 may, for example, affect the overall properties of the gaseous flow such that the taste and flavour of the gaseous flow are improved, making the gaseous flow more appealing to the smoker.
  • One application of the tobacco product 240 is to replace a degree of the taste and flavour characteristics of the gaseous flow which may be lost as the gaseous flow moves through the filter material 210.
  • the coverage of the tobacco product 240 may be confined to the longitudinally extending surface 213 of a section of the filter material 210, either in the filter 200 or a single filter element 214, 215, which comprises activated carbon, as activated carbon is known to affect the taste and flavour of tobacco smoke.
  • the tobacco product 240 is only present in the filter element 214 which comprises activated carbon 216.
  • the tobacco product 240 may be adhered to the plug wrap 220 so as to provide a substantially even coverage over the surface 213 of the filter material 210 in the filter 200.
  • different areas of the surface 213 of the filter material 210 may be covered by different loadings of the tobacco product 240.
  • the tobacco product 240 may be provided in a plurality of stripes, as explained in more detail below.
  • stripes of adhesive 230 may be applied to the inner surface 221 of a sheet of plug wrap 220.
  • the stripes of adhesive 230 may provide a means for adhering the tobacco product 240 to the inner surface 221 of the plug wrap 220, such that the tobacco product 240 forms longitudinal stripes on the surface 221 of the plug wrap 220.
  • the stripes of adhesive 230 could feasibly be oriented in any direction.
  • the adhesive 230 could provide a means for adhering the plug wrap 220 to the filter material 210.
  • a possible method of applying the tobacco product 240 to the plug wrap 220 is to mix the tobacco product 240 with the adhesive 230 prior to it being applied to the plug wrap 220.
  • this may comprise passing a planar sheet of plug wrap 220 through a gluing station 400 in the direction of arrow A, at which application nozzles 500 apply the stripes of adhesive 230 in parallel, longitudinally along the inner surface 221 of the plug wrap 220.
  • the adhesive 230 for the stripes may be applied through the nozzles 500 from a tank 600. If the tobacco product 240 is mixed with the adhesive 230 as described above, the nozzles 500 may also be responsible for applying the tobacco product 240 to the inner surface 221 of the plug wrap 220.
  • the tobacco product 240 may be applied to the inner surface 221 of the plug wrap 220 by another application means.
  • the tobacco product 240 may be sprinkled or sprayed over the plug wrap 220 such that it adheres to the plug wrap's inner surface 221.
  • the adhesive 230 may be applied to the inner surface 221 of the plug wrap 220 by any other suitable application method.
  • adhesive 230 may be sprayed over the inner surface of the plug wrap 220.
  • a planar sheet of plug wrap 220 and a generally cylindrical tow of suitable filter material may be fed to a wrapping station 700 in the direction of arrow B.
  • the plug wrap 220 is wrapped around the tow of filter material and glued by a gluing nozzle 800 so that the plug wrap 220 completely encompasses the longitudinal surface 213 of the filter material.
  • the filter material and surrounding plug wrap may then be cut into lengths to create a plurality of filter elements 214, 215 suitable for use in individual cigarettes 100. This is illustrated schematically by dotted outline 1000 of Figure 12.
  • the steps of a method for forming a filter element in accordance with the invention are shown by Sl to S6 in Figure 13.

Landscapes

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

Abstract

L’invention concerne un élément de filtre (214) destiné à un article pour fumeur comprenant un embout de matériau de filtre (210) présentant une surface s'étendant longitudinalement (213), un papier d’emballage (220) enroulé autour de la surface s'étendant longitudinalement de l'embout de matériau de filtre, et un produit de tabac (240) situé entre la surface s’étendant longitudinalement de l’embout de matériau de filtre et le papier d'emballage de manière à recouvrir au moins une partie de la surface s'étendant longitudinalement.
EP09769118A 2008-06-24 2009-06-09 Filtre destiné à un article pour fumeur Withdrawn EP2326189A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0811552.9A GB0811552D0 (en) 2008-06-24 2008-06-24 Filter for a smoking article
PCT/EP2009/057087 WO2009156269A1 (fr) 2008-06-24 2009-06-09 Filtre destiné à un article pour fumeur

Publications (1)

Publication Number Publication Date
EP2326189A1 true EP2326189A1 (fr) 2011-06-01

Family

ID=39683057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09769118A Withdrawn EP2326189A1 (fr) 2008-06-24 2009-06-09 Filtre destiné à un article pour fumeur

Country Status (15)

Country Link
US (1) US20110168195A1 (fr)
EP (1) EP2326189A1 (fr)
JP (1) JP2011525368A (fr)
KR (1) KR20110031478A (fr)
CN (1) CN102076231A (fr)
AR (1) AR074157A1 (fr)
AU (1) AU2009262418A1 (fr)
BR (1) BRPI0914144A2 (fr)
CA (1) CA2726933A1 (fr)
CL (1) CL2010001495A1 (fr)
GB (1) GB0811552D0 (fr)
MX (1) MX2010014158A (fr)
RU (1) RU2011101773A (fr)
WO (1) WO2009156269A1 (fr)
ZA (1) ZA201008889B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105473009B (zh) 2013-08-21 2019-12-17 日本烟草产业株式会社 香烟用的过滤嘴
CN105616192A (zh) * 2015-12-30 2016-06-01 广州市科能化妆品科研有限公司 一种护色组合物及含有该组合物的产品
IT201700065691A1 (it) * 2017-06-14 2018-12-14 Gd Spa Dispositivo e metodo per applicare un adesivo su un nastro di incarto per un articolo da fumo
GB201812502D0 (en) * 2018-07-31 2018-09-12 Nicoventures Holdings Ltd Aerosol generation
KR102414660B1 (ko) * 2018-09-12 2022-06-29 주식회사 케이티앤지 접착 물질이 도포된 래퍼를 포함하는 에어로졸 형성 로드 및 제조 방법
KR20220146185A (ko) * 2021-04-23 2022-11-01 주식회사 케이티앤지 필터, 이를 포함하는 에어로졸 생성 물품 및 상기 필터의 제조방법

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229078A (en) * 1989-03-14 1990-09-19 Rothmans Int Tobacco Flavouring cigarettes
AU635095B2 (en) * 1990-08-24 1993-03-11 Philip Morris Products Inc. Concentric smoking filter having discrete tow and web filter media
US5365951A (en) * 1990-08-24 1994-11-22 Philip Morris Incorporated Concentric smoking filter having cellulose acetate tow periphery and carbon-particle-loaded web filter core
US5115823A (en) * 1990-12-20 1992-05-26 Philip Morris Incorporated Flavor-enhancing smoking filter
FR2746600B1 (fr) * 1996-03-29 1998-04-30 Tabacs & Allumettes Ind Cigarette a filtre ventile a double troncon de filtrage, aromatisee par le gainage du filtre.
CN2275356Y (zh) * 1996-11-08 1998-03-04 李铁峰 装有活性炭过滤体的香烟过滤嘴
US20030178039A1 (en) * 1998-02-26 2003-09-25 White Jackie Lee Water soluble sheet material
CA2438908C (fr) * 2001-02-22 2010-08-17 Philip Morris Products Inc. Cigarette et filtre avec adjonction de saveur en aval
US20070000505A1 (en) * 2005-02-24 2007-01-04 Philip Morris Usa Inc. Smoking article with tobacco beads
JP2009509524A (ja) * 2005-09-30 2009-03-12 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 香味を付けたシガレット
GB0619958D0 (en) * 2006-10-09 2006-11-15 Filtrona Int Ltd Tobacco smoke filter
GB2455733A (en) * 2007-12-19 2009-06-24 British American Tobacco Co Filter for a smoking article

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009156269A1 *

Also Published As

Publication number Publication date
MX2010014158A (es) 2011-02-21
AU2009262418A1 (en) 2009-12-30
CA2726933A1 (fr) 2009-12-30
CN102076231A (zh) 2011-05-25
AR074157A1 (es) 2010-12-29
JP2011525368A (ja) 2011-09-22
GB0811552D0 (en) 2008-07-30
KR20110031478A (ko) 2011-03-28
BRPI0914144A2 (pt) 2015-10-20
WO2009156269A1 (fr) 2009-12-30
ZA201008889B (en) 2013-05-29
US20110168195A1 (en) 2011-07-14
CL2010001495A1 (es) 2011-04-08
RU2011101773A (ru) 2012-07-27

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