EP1827145B1 - Capsuled adsorbent flavored filter - Google Patents

Capsuled adsorbent flavored filter Download PDF

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Publication number
EP1827145B1
EP1827145B1 EP05808816A EP05808816A EP1827145B1 EP 1827145 B1 EP1827145 B1 EP 1827145B1 EP 05808816 A EP05808816 A EP 05808816A EP 05808816 A EP05808816 A EP 05808816A EP 1827145 B1 EP1827145 B1 EP 1827145B1
Authority
EP
European Patent Office
Prior art keywords
capsule
particles
cigarette
carbon particles
adsorbent
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
EP05808816A
Other languages
German (de)
French (fr)
Other versions
EP1827145A1 (en
Inventor
Richard Jupe
Robert G. Scott
Billy J. Keen
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
Application filed by Philip Morris Products SA filed Critical Philip Morris Products SA
Priority to EP05808816A priority Critical patent/EP1827145B1/en
Priority to PL05808816T priority patent/PL1827145T3/en
Priority to SI200531112T priority patent/SI1827145T1/en
Priority claimed from PCT/IB2005/003644 external-priority patent/WO2006051422A1/en
Publication of EP1827145A1 publication Critical patent/EP1827145A1/en
Application granted granted Critical
Publication of EP1827145B1 publication Critical patent/EP1827145B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24D3/04—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
    • A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
    • 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

  • the present invention relates to a cigarette comprising a tobacco rod and an adjoining filter, and more particularly to a filter that includes a capsule packed with flavored adsorbent.
  • Cigarettes with filters are old in the art, and filters that include adsorbents also are well known (see e.g. DE 19527471 A1 or US-A-3251 365 ).
  • adsorbents when used in cigarette filter constructions it is important that they be presented in a fully packed condition so as to avoid or substantially reduce channeling of mainstream tobacco smoke in and around the adsorbent.
  • flavors have been added to mainstream tobacco smoke it is important to maintain such flavors as fresh as possible for extended shelf life of the cigarette.
  • one of the objects of the present invention is a cigarette filter containing adsorbent particles in a fully packed condition so as to avoid channeling of mainstream tobacco smoke in and around the adsorbent particles.
  • Another object of the present invention is a cigarette filter containing flavored adsorbent particles wherein the amount of flavor is precise.
  • Still another object of the present invention is a cigarette filter containing fully packed flavored adsorbent particles within a capsule to preserve freshness of the flavored particles.
  • a cigarette comprises a filter and an adjoining tobacco rod.
  • the filter includes a capsule having a first end wall with a surrounding side wall secured thereto. Adsorbent spherical carbon particles are packed into the enclosure of the capsule, and flavorant is placed on the particles. A second end wall caps-off the side wall, and a plurality of perforations are located in the end walls of the capsule.
  • the adsorbent spherical carbon particles comprise a combination of two different sizes.
  • the filter has a plug-space-plug configuration with the capsule in the central space.
  • the plugs on opposite ends of the capsule may each comprise cellulose acetate tow.
  • Figure 1 illustrates a cigarette 10 comprising a tobacco rod 12 and a filter 14 adjoining the tobacco rod.
  • Filter 14 has a plug-space-plug configuration and the central space provides a compartment for a capsule 16 containing a flavored adsorbent material, as explained more fully below.
  • Plugs 18 and 20 each of cellulose acetate tow are located on opposite ends of the capsule 16.
  • Tipping paper 22 is wrapped around the filter 14 and joins the filter to the tobacco rod.
  • Perforations 40 may be provided in the tipping paper for the introduction of air which dilutes the mainstream tobacco smoke following through the filter.
  • Capsule 16 comprises an impervious surrounding side wall 24 and a first and second end wall 26, 28.
  • Adsorbent spherical carbon particles 30, 32 are fully packed into the enclosure of the capsule, and a flavorant 34 is applied to the carbon particles.
  • Both end walls 26 and 28 include a plurality of perforations 36 which enable mainstream smoke to pass through the capsule.
  • the capsule 16 is produced by initially forming the surrounding side wall 24 with one end wall 26 attached thereto. Carbon particles 28, 30 each having a different size are fully packed into the capsule and a precise amount of flavorant 34 is delivered onto the particles by an applicator device 38. The opposite end of the surrounding side wall 24 is then capped-off by end wall 28.
  • a capsule fully packed with particles is presented and such fully packed condition avoids channeling of mainstream tobacco smoke in and around the particles. Vibration may be applied to obtain a fully packed capsule. Hence, the smoke is subjected to the fully effect of the adsorbent particles and the flavorant applied thereto. Moreover, the effectiveness of the encapsulated adsorbent particles 28, 30 is maintained over long periods thereby significantly increasing the shelf life of cigarette filters made in this manner. Overall the capsule 16 enables more exact filing of adsorbent particles 28, 30 and more control of flavor 34 per cigarette.

Description

    Background of the Invention
  • The present invention relates to a cigarette comprising a tobacco rod and an adjoining filter, and more particularly to a filter that includes a capsule packed with flavored adsorbent.
  • Cigarettes with filters are old in the art, and filters that include adsorbents also are well known (see e.g. DE 19527471 A1 or US-A-3251 365 ). However, when adsorbents are used in cigarette filter constructions it is important that they be presented in a fully packed condition so as to avoid or substantially reduce channeling of mainstream tobacco smoke in and around the adsorbent. Moreover, although flavors have been added to mainstream tobacco smoke it is important to maintain such flavors as fresh as possible for extended shelf life of the cigarette.
    • Summary of the Invention
  • Accordingly, one of the objects of the present invention is a cigarette filter containing adsorbent particles in a fully packed condition so as to avoid channeling of mainstream tobacco smoke in and around the adsorbent particles.
  • Another object of the present invention is a cigarette filter containing flavored adsorbent particles wherein the amount of flavor is precise.
  • Still another object of the present invention is a cigarette filter containing fully packed flavored adsorbent particles within a capsule to preserve freshness of the flavored particles.
  • In accordance with the present invention, a cigarette comprises a filter and an adjoining tobacco rod. The filter includes a capsule having a first end wall with a surrounding side wall secured thereto. Adsorbent spherical carbon particles are packed into the enclosure of the capsule, and flavorant is placed on the particles. A second end wall caps-off the side wall, and a plurality of perforations are located in the end walls of the capsule. During smoking of the cigarette, mainstream tobacco passes into and through the capsule to thereby modify the characteristics of the smoke.
  • In one embodiment of the present invention, the adsorbent spherical carbon particles comprise a combination of two different sizes. Also, in the preferred embodiment of the present invention, the filter has a plug-space-plug configuration with the capsule in the central space. The plugs on opposite ends of the capsule may each comprise cellulose acetate tow.
    • Brief Description of the Drawings
  • Novel features and advantages of the present invention in addition to those mentioned above will become apparent to persons of ordinary skill in the art from a reading of the following detailed description in conjunction with the accompanying drawings wherein similar referenced characters refer to similar parts and in which:
    • Figure 1 is a side elevational view of a cigarette comprising a tobacco rod and a filter that includes a capsuled adsorbent and flavorant, according to the present invention, with portions of the filter broken away to show interior details;
    • Figure 2 is a perspective view of the capsuled adsorbent and flavorant of the cigarette filter shown in Figure 1;
    • Figure 3 is an end elevational view of the capsuled adsorbent and flavorant shown in Figures 1 and 2; and
    • Figure 4 is an elevational view of the capsuled adsorbent with flavorant being applied to the adsorbent within the capsule prior to capping the capsule, according to the present invention.
    Detailed Description of the Invention
  • Referring in more particularity to the drawings, Figure 1 illustrates a cigarette 10 comprising a tobacco rod 12 and a filter 14 adjoining the tobacco rod. Filter 14 has a plug-space-plug configuration and the central space provides a compartment for a capsule 16 containing a flavored adsorbent material, as explained more fully below.
  • Plugs 18 and 20 each of cellulose acetate tow are located on opposite ends of the capsule 16. Tipping paper 22 is wrapped around the filter 14 and joins the filter to the tobacco rod. Perforations 40 may be provided in the tipping paper for the introduction of air which dilutes the mainstream tobacco smoke following through the filter.
  • Capsule 16 comprises an impervious surrounding side wall 24 and a first and second end wall 26, 28. Adsorbent spherical carbon particles 30, 32 are fully packed into the enclosure of the capsule, and a flavorant 34 is applied to the carbon particles. Both end walls 26 and 28 include a plurality of perforations 36 which enable mainstream smoke to pass through the capsule.
  • The capsule 16 is produced by initially forming the surrounding side wall 24 with one end wall 26 attached thereto. Carbon particles 28, 30 each having a different size are fully packed into the capsule and a precise amount of flavorant 34 is delivered onto the particles by an applicator device 38. The opposite end of the surrounding side wall 24 is then capped-off by end wall 28.
  • By encapsulating the adsorbent spherical carbon particles 30, 32 in this particular manner, a capsule fully packed with particles is presented and such fully packed condition avoids channeling of mainstream tobacco smoke in and around the particles. Vibration may be applied to obtain a fully packed capsule. Hence, the smoke is subjected to the fully effect of the adsorbent particles and the flavorant applied thereto. Moreover, the effectiveness of the encapsulated adsorbent particles 28, 30 is maintained over long periods thereby significantly increasing the shelf life of cigarette filters made in this manner. Overall the capsule 16 enables more exact filing of adsorbent particles 28, 30 and more control of flavor 34 per cigarette.

Claims (12)

  1. A capsule (16) for placement in a cigarette filter (14) comprising an enclosure having a first end wall (26) with a surrounding side wall (24) secured thereto, adsorbent carbon particles (30, 32) fully packed into the enclosure to avoid channelling of mainstream tobacco smoke in and around the adsorbent particles, flavorant (34) on the particles, a second end wall (28) capping-off the side wall, and a plurality of perforations (36) in the end walls whereby when the capsule is placed in a cigarette filter tobacco smoke passes into and through the capsule to thereby modify the characteristics of the smoke
  2. A capsule (16) according to claim 1 wherein the carbon particles (30, 32) are spherical.
  3. A capsule (16) according to claim 1 or 2 wherein the carbon particles (30, 32) comprise a combination of particles of two different sizes.
  4. A cigarette (10) comprising a filter (14) and a tobacco rod (12), the filter including a capsule (16) having a first end wall (26) with a surrounding side wall (24) secured thereto, adsorbent carbon particles (30, 32) fully packed into the capsule (16) to avoid channelling of mainstream tobacco smoke in and around the adsorbent particles, a flavorant (34) on the particles, a second end wall (28) capping-off the side wall, and a plurality of perforations (36) in the end walls whereby during smoking of the cigarette tobacco smokes passels into and through the capsule (16) to thereby modify the characteristics of the smoke.
  5. A cigarette (10) according to claim 4 wherein the carbon particles (30, 32) are spherical.
  6. A cigarette (10) according to claim 5 wherein the carbon particles (30, 32) comprise a combination of particles of two different sizes.
  7. A cigarette as in claim 4 wherein the filter has a plug-space-plug configuration with the capsule in the space and wherein the plugs on opposite ends of the capsule each comprise cellulose acetate tow.
  8. A method of producing a capsule for placement in a cigarette filter according to claim 1 to 3 comprising the steps of forming an enclosure having a first end wall with a surrounding side wall secured thereto, packing adsorbent carbon particles into the enclosure, applying flavorant onto the carbon particles, capping-off the side wall with a second end wall, and providing perforations in the end walls whereby when the capsule is placed in a cigarette filter tobacco smoke passes into and through the capsule to thereby modify the characteristics of the smoke.
  9. A method as in claim 8 wherein the carbon particles are spherical.
  10. A method as in claim 9 wherein the spherical carbon particles comprise a combination of particles of two different sizes.
  11. A method as in claim 8 including the step of placing the capsule in a space within a cigarette filter.
  12. A method as in claim 11 including the step of placing cellulose acetate plugs at opposite ends of the capsule.
EP05808816A 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter Active EP1827145B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05808816A EP1827145B1 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter
PL05808816T PL1827145T3 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter
SI200531112T SI1827145T1 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US62661304P 2004-11-10 2004-11-10
EP05808816A EP1827145B1 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter
PCT/IB2005/003644 WO2006051422A1 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter

Publications (2)

Publication Number Publication Date
EP1827145A1 EP1827145A1 (en) 2007-09-05
EP1827145B1 true EP1827145B1 (en) 2010-09-01

Family

ID=43034234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05808816A Active EP1827145B1 (en) 2004-11-10 2005-11-09 Capsuled adsorbent flavored filter

Country Status (3)

Country Link
EP (1) EP1827145B1 (en)
PL (1) PL1827145T3 (en)
SI (1) SI1827145T1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2577736C1 (en) * 2012-02-20 2016-03-20 Джапан Тобакко Инк. Cigarette

Also Published As

Publication number Publication date
EP1827145A1 (en) 2007-09-05
SI1827145T1 (en) 2010-10-29
PL1827145T3 (en) 2011-02-28

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