NO338062B1 - An electrically heated cigarette comprising controlled release of flavoring, a method of making such a cigarette, and an electric smoking system comprising this - Google Patents
An electrically heated cigarette comprising controlled release of flavoring, a method of making such a cigarette, and an electric smoking system comprising this Download PDFInfo
- Publication number
- NO338062B1 NO338062B1 NO20052600A NO20052600A NO338062B1 NO 338062 B1 NO338062 B1 NO 338062B1 NO 20052600 A NO20052600 A NO 20052600A NO 20052600 A NO20052600 A NO 20052600A NO 338062 B1 NO338062 B1 NO 338062B1
- Authority
- NO
- Norway
- Prior art keywords
- electrically heated
- flavor
- cigarette
- heated cigarette
- sorbent
- Prior art date
Links
- 235000019504 cigarettes Nutrition 0.000 title claims description 226
- 230000000391 smoking effect Effects 0.000 title claims description 58
- 238000013270 controlled release Methods 0.000 title description 8
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000796 flavoring agent Substances 0.000 claims description 114
- 235000019634 flavors Nutrition 0.000 claims description 108
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 73
- 239000002594 sorbent Substances 0.000 claims description 59
- 239000000654 additive Substances 0.000 claims description 56
- 230000000996 additive effect Effects 0.000 claims description 45
- 239000000779 smoke Substances 0.000 claims description 38
- 238000010438 heat treatment Methods 0.000 claims description 36
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 17
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- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 claims description 6
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
- A24B15/282—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by indirect addition of the chemical substances, e.g. in the wrapper, in the case
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
- A24B15/283—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
- A24B15/283—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances
- A24B15/284—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances the additive being bound to a host by chemical, electrical or like forces, e.g. use of precursors, inclusion complexes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/01—Making cigarettes 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
- A24D1/08—Cigars; Cigarettes with lighting 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
- A24D3/17—Filters specially adapted for simulated smoking devices
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacture Of Tobacco Products (AREA)
Description
Kjent teknikk Known technique
Tradisjonelle sigaretter røykes ved tenning av en ende av en innpakket tobakkstang og trekking av luft først og fremst gjennom den tente enden ved suging gjennom en munnstykkeende hos sigaretten. Tradisjonelle sigaretter leverer røyk som et resultat av forbrenning, gjennom hvilken tobakk forbrennes ved temperaturer som vanligvis overstiger 800°C gjennom et trekk. Varmen i forbrenningen frigjør ulike gassfasede forbrenningsprodukter og destilleres fra tobakken. Ettersom disse gassfasede produktene trekkes gjennom sigaretten, avkjøles de og kondenseres og danner en aerosol, som tilveiebringer smakene og aromaene assosiert med røyking. Traditional cigarettes are smoked by lighting one end of a wrapped tobacco stick and drawing air primarily through the lit end by suction through a nozzle end of the cigarette. Traditional cigarettes deliver smoke as a result of combustion, through which tobacco is burned at temperatures typically exceeding 800°C through a puff. The heat in the combustion releases various gaseous combustion products and is distilled from the tobacco. As these gaseous products are drawn through the cigarette, they cool and condense to form an aerosol, which provides the flavors and aromas associated with smoking.
Tradisjonelle sigaretter tilveiebringer sidestrømsrøyk gjennom ulming mellom trekkene. Idet de er tent forbrukes de vanligvis i sin helhet eller kastes. Gjentenning av tradisjonelle sigaretter er mulig, men er ikke ønskelig av subjunktive grunner omfattende smaksstoffer, smak og odør. Traditional cigarettes provide sidestream smoke through smoldering between puffs. As they are lit, they are usually consumed in their entirety or thrown away. Re-lighting of traditional cigarettes is possible, but is not desirable for subjunctive reasons including flavourings, taste and odour.
Et alternativ til mer tradisjonelle sigaretter er den elektrisk oppvarmede sigaretten som anvendes i elektriske røykesystemer. Sammenlignet med tradisjonelle sigaretter reduserer elektriske røykesystemer vesentlig sidestrømsrøyken, og tillater også røykerne å utsette og gjenoppta røyking etter ønske. Eksempler på elektriske røykesystemer er vist i US patenter nr. 6 026 820, 5 988 176, 5 915 387, 5 692 526, 5 692 525, 5 666 976, 5 499 636, og 5 388 594. Elektriske røykesystemer omfatter en elektrisk drevet tenner og en elektrisk oppvarmet sigarett, som er konstruert til å samvirke med tenneren. Det er ønskelig at de elektriske røykesystemene er i stand til å levere røyk på en måte som ligner røykerens erfaringer med tradisjonelle sigaretter, slik som ved tilveiebringelse av en øyeblikkelig respons (røykleveranse inntreffer øyeblikkelig ved et trekk), et ønsket nivå på leveringen (som korrelerer med FTC-tjærenivået), en ønsket motstand i trekket (RTD - Resistance to Draw), likesom trekk-til-trekk-konsistens og sigarett-til-sigarett-konsistens. An alternative to more traditional cigarettes is the electrically heated cigarette used in electric smoking systems. Compared to traditional cigarettes, electric smoking systems significantly reduce sidestream smoke, and also allow smokers to pause and resume smoking at will. Examples of electric smoking systems are shown in US Patent Nos. 6,026,820, 5,988,176, 5,915,387, 5,692,526, 5,692,525, 5,666,976, 5,499,636, and 5,388,594. Electric smoking systems include an electrically powered lighters and an electrically heated cigarette, which is designed to cooperate with the lighter. It is desirable that the electric smoking systems are capable of delivering smoke in a manner similar to the smoker's experience with traditional cigarettes, such as by providing an instant response (smoke delivery occurs instantaneously with a puff), a desired level of delivery (which correlates with the FTC tar level), a desired resistance to draw (RTD - Resistance to Draw), as well as draw-to-draw consistency and cigarette-to-cigarette consistency.
Flyktige smaksstoffer er blitt innlemmet i tradisjonelle sigaretter for å tilføre smak og aroma til hovedstrømmen og sidestrømmen av tobakksrøyken. Se f.eks. US patentene nr. 3 006 347, 3 236 244, 3 344 796, 3 426 011, 3 972 335, 4 715 390, Volatile flavorings have been incorporated into traditional cigarettes to add flavor and aroma to the mainstream and sidestream of tobacco smoke. See e.g. US Patent Nos. 3,006,347, 3,236,244, 3,344,796, 3,426,011, 3,972,335, 4,715,390,
5 137 034, 5 144 964 og 6 325 859, og den internasjonale publikasjonen WO 01/80671. De tilførte smaksstoffene er ønsket flyktig når sigaretten røykes. Imidlertid er flyktige smaksstoffer tilbøyelig til å migrere i sigaretten til andre komponenter og muligens gjennom hele sigaretten. Flyktige smaksstoffer kan tapes fra sigaretten under lagring og distribusjon ved ordinære forhold før røyking av sigarettene. Graden av migrering av flyktige smaksstoffer i sigaretten avhenger av ulike faktorer, omfattende smaksstoffets damptrykk, oppløseligheten av smaksstoffet i andre komponenter i sigaretten og temperatur og fuktighetsforhold. I tillegg kan en stor del av det tilførte smaksstoffet mistes til sidestrømsrøyken i tradisjonelle sigaretter. 5,137,034, 5,144,964 and 6,325,859, and International Publication WO 01/80671. The added flavorings are desired to be volatile when the cigarette is smoked. However, volatile flavors tend to migrate within the cigarette to other components and possibly throughout the cigarette. Volatile flavoring substances can be lost from the cigarette during storage and distribution under ordinary conditions before smoking the cigarettes. The degree of migration of volatile flavorings in the cigarette depends on various factors, including the flavoring's vapor pressure, the solubility of the flavoring in other components of the cigarette, and temperature and humidity conditions. In addition, a large part of the added flavoring can be lost to the sidestream smoke in traditional cigarettes.
Smaksstoffer som er innlemmet i tradisjonelle sigaretter kan også forringes kjemisk og/eller fysisk ved kontakt og/eller reaksjon med andre komponenter i sigaretten, likesom i omgivelsene. F.eks. er aktivt kull innlemmet i tradisjonelle sigaretter for å fjerne gassfasede bestanddeler fra hovedstrømsrøyken. Imidlertid har smaksstoffene som er blitt innlemmet i sigaretten sammen med aktivt kull blitt adsorbert av det aktiverte kullet, noe som har tettet porene til det aktive kullet og følgelig deaktivert det aktive kullet, og følgelig forminsket dettes evne til å filtrere tobakksrøyk. Flavorings incorporated in traditional cigarettes can also deteriorate chemically and/or physically through contact and/or reaction with other components in the cigarette, as well as in the environment. E.g. activated charcoal is incorporated into traditional cigarettes to remove gaseous components from the mainstream smoke. However, the flavorings incorporated into the cigarette along with activated carbon have been adsorbed by the activated carbon, which has clogged the pores of the activated carbon and consequently deactivated the activated carbon, thereby reducing its ability to filter tobacco smoke.
Av grunnene ovenfor har ikke smaksstoffene som har blitt innlemmet i tradisjonelle sigaretter vært fullstendig tilfredsstillende levert til røykeren. Følgelig har ikke smaksstoffene innlemmet i enkelte tradisjonelle sigaretter på tilfredsstillende måte tilveiebrakt den ønskede smaksvirkningen til røykeren og smaksstoffenes ønskede verdi til den subjektive kvaliteten hos sigaretten er blitt mindre enn ønsket. På grunn av smaksstoffet har ikke ensartetheten til smakstilsatte sigaretter vært fullstendig tilfredsstillende. I tillegg har sorpsjonen av smaksstoffer av sorbenter i sigarettene deaktivert sorbentene, og med dette redusert deres evne til å fjerne gassfasede bestanddeler fra tobakksrøyken. For the above reasons, the flavorings that have been incorporated into traditional cigarettes have not been completely satisfactorily delivered to the smoker. Consequently, the flavorings incorporated in some traditional cigarettes have not satisfactorily provided the desired taste effect to the smoker and the flavorings' desired value to the subjective quality of the cigarette has become less than desired. Because of the flavoring, the uniformity of flavored cigarettes has not been completely satisfactory. In addition, the sorption of flavoring substances by sorbents in the cigarettes has deactivated the sorbents, thereby reducing their ability to remove gas-phase constituents from the tobacco smoke.
US 6125853 og US5845649 beskriver andre eksempler på smaksgenerende anordninger. US 6125853 and US5845649 describe other examples of taste-generating devices.
Sammendrag av oppfinnelsen Summary of the invention
I lys av de ovenfor beskrevne problemene som er møtt i enkelte tradisjonelle sigaretter omfattende smaksstoffer og disse som også omfatter sorbenter, er en elektrisk oppvarmet sigarett beskrevet, som omfatter en sorbent og en styrt frigivelse av smaksstoff. Det er beskrevet en elektrisk oppvarmet sigarett som omfatter en sorbent og et smaksstoff innlemmet i sigaretten i en form som fortrinnsvis minimerer frigivelsen og migreringen av smaksstoffet i sigaretten før røyking, f.eks. ved omgivelsesforhold, og dermed fortrinnsvis minimerer reaktivering av sorbenten av smaksstoffet. I tillegg kan smaksstoffet frigis i sigaretten på en styrt måte under røyking. Følgelig øker smaksstoffet de subjektive karakteristikkene til sigaretten mens sorbenten opprettholder evnen til å fjerne gassfasede bestanddeler fra hovedstrømsrøyken. In light of the above-described problems encountered in some traditional cigarettes comprising flavorings and these also comprising sorbents, an electrically heated cigarette is described, comprising a sorbent and a controlled release of flavoring. An electrically heated cigarette is described which comprises a sorbent and a flavoring incorporated into the cigarette in a form which preferably minimizes the release and migration of the flavoring into the cigarette prior to smoking, e.g. at ambient conditions, and thus preferably minimizes reactivation of the sorbent by the flavouring. In addition, the flavoring can be released in the cigarette in a controlled manner during smoking. Accordingly, the flavoring increases the subjective characteristics of the cigarette while the sorbent maintains the ability to remove gas-phase constituents from the mainstream smoke.
Det er beskrevet en elektrisk oppvarmet sigarett omfatter minst én sorbent og et smaksfrigivende tilsetningsstoff inkludert ett eller flere smaksstoffer. It has been described that an electrically heated cigarette comprises at least one sorbent and a flavor-releasing additive including one or more flavourings.
Smaksstoffet frigis i sigaretten ved at det smaksfrigivende tilsetningsstoffet blir oppvarmet til minst en minimumstemperatur, som inntreffer under røyking av sigaretten. The flavoring is released in the cigarette by the flavoring additive being heated to at least a minimum temperature, which occurs during smoking of the cigarette.
Det smaksfrigivende tilsetningsstoffet kan innlemmes i ulike former i den elektrisk oppvarmede sigaretten, så som kuler eller film. I en foretrukket utførelsesform er det smaksfrigivende tilsetningsstoffet et inklusjonskompleks omfattende et valgt vertsmolekyl, og smaksstoffet som et gjestemolekyl i inklusjonskomplekset. The flavor-releasing additive can be incorporated into the electrically heated cigarette in various forms, such as balls or film. In a preferred embodiment, the flavor-releasing additive is an inclusion complex comprising a selected host molecule, and the flavor as a guest molecule in the inclusion complex.
I en annen foretrukket utførelsesform er to eller flere ulike smaksfrigivende tilsetningsstoffer med ulike smaksfrigivende temperaturer anbrakt ved ulike steder i en elektrisk oppvarmet sigarett som når ulike temperaturer i forhold til hverandre. De smaksfrigivende tilsetningsstoffene kan plasseres på steder i den elektrisk oppvarmede sigaretten som når den smaksfrigivende temperaturen for disse smaksfrigivende tilsetningsstoffene. Følgelig kan det smaksfrigivende tilsetningsstoffet tilveiebringe effektivt, styrt frigivelse av smaksstoffet under røyking. In another preferred embodiment, two or more different flavor-releasing additives with different flavor-releasing temperatures are placed at different locations in an electrically heated cigarette which reach different temperatures in relation to each other. The flavor-releasing additives can be placed at locations in the electrically heated cigarette that reach the flavor-releasing temperature for these flavor-releasing additives. Consequently, the flavor-releasing additive can provide effective, controlled release of the flavor during smoking.
Den elektrisk oppvarmede sigaretten kan omfatte ulike sorbenter. Ved å tilveiebringe smaksstoffet i det smaksfrigivende tilsetningsstoffet, som fortrinnsvis minimerer frigivelsen og/eller migreringen av smaksstoffet til det smaksfrigivende tilsetningsstoffet når smaksfrigivende temperaturen, hindres smaksstoffet fortrinnsvis vesentlig fra å bli absorbert av, og dermed deaktivere, sorbenten, og dermed ikke negativt påvirke sorbentens evne til å fjerne valgte gassfasede bestanddeler fra tobakkens hovedstrømsrøyk. I tillegg, siden smaksstoffet temperaturfrigis i sigaretten, kan det effektivt leveres til en røyker på en styrt måte i løpet av trekksykluser hos sigaretten. The electrically heated cigarette can include various sorbents. By providing the flavoring in the flavor-releasing additive, which preferably minimizes the release and/or migration of the flavoring to the flavor-releasing additive when the flavor-releasing temperature is reached, the flavoring is preferably substantially prevented from being absorbed by, and thereby deactivating, the sorbent, thereby not adversely affecting the ability of the sorbent to remove selected gas-phase constituents from the tobacco mainstream smoke. In addition, since the flavoring is thermally released in the cigarette, it can be effectively delivered to a smoker in a controlled manner during draw cycles of the cigarette.
En foretrukket utførelsesform av et elektrisk røykesystem omfatter en tenner og minst én elektrisk oppvarmet sigarett omfattende minst én sorbent og et smaksfrigivende tilsetningsstoff som beskrevet over. A preferred embodiment of an electric smoking system comprises a lighter and at least one electrically heated cigarette comprising at least one sorbent and a flavor-releasing additive as described above.
En foretrukket utførelsesform av en fremgangsmåte for å lage en elektrisk oppvarmet sigarett omfatter innlemming av en sorbent og et smaksfrigivende tilsetningsstoff til en elektrisk oppvarmet sigarett, hvor det smaksfrigivende tilsetningsstoffet et inklusjonskompleks omfattende et valgt vertsmolekyl, og smaksstoffet som et gjestemolekyl i inklusjonskomplekset.. A preferred embodiment of a method for making an electrically heated cigarette comprises incorporating a sorbent and a flavor-releasing additive to an electrically heated cigarette, where the flavor-releasing additive is an inclusion complex comprising a selected host molecule, and the flavoring substance as a guest molecule in the inclusion complex.
Detaljert beskrivelse Detailed description
Fig. 1 illustrerer en elektrisk oppvarmet sigarett ved å bruke et elektrisk røykesystem med en sigarett i en delvis usammensatt stand. Fig. 2 illustrerer den elektrisk oppvarmede sigaretten vist i fig. 1 i sammensatt stand med én ende hos sigaretten i kontakt med en stansedel hos en elektrisk drevet tenner hos det elektriske røykesystemet. Fig. 3 illustrerer en annen en elektrisk oppvarmet sigarett for bruk i et elektrisk røykesystem med sigaretten i en delvis usammensatt stand. Fig. 4 illustrerer et elektrisk røykesystem med en elektrisk oppvarmet sigarett satt inn i den elektrisk drevne tenneren. Fig. 5 illustrerer det elektriske røykesystemet vist i fig. 4 med sigaretten trukket ut fra tenneren. Fig. 6 illustrerer en varmefast spenningsanordning hos det elektriske røykesystemet. Fig. 1 illustrates an electrically heated cigarette using an electric smoking system with a cigarette in a partially disassembled state. Fig. 2 illustrates the electrically heated cigarette shown in Fig. 1 in the assembled state with one end of the cigarette in contact with a punch part of an electrically powered igniter of the electric smoking system. Fig. 3 illustrates another electrically heated cigarette for use in an electric smoking system with the cigarette in a partially disassembled state. Fig. 4 illustrates an electric smoking system with an electrically heated cigarette inserted into the electrically powered lighter. Fig. 5 illustrates the electric smoking system shown in fig. 4 with the cigarette pulled out from the lighter. Fig. 6 illustrates a heat-resistant voltage device in the electric smoking system.
Detaljert beskrivelse av foretrukne utførelsesformer Detailed description of preferred embodiments
En elektrisk oppvarmet sigarett omfatter én eller flere sorbenter og minst ett smaksstoff for påvirkning av smak, aroma og/eller aromaen til tobakksrøyken. Smaksstoffet kan innlemmes i sigaretten i et smaksfrigivende tilsetningsstoff, som fortrinnsvis minimerer frigivelsen og/eller migreringen av smaksstoffet i sigaretten før røyking. Fortrinnsvis frigis smaksstoffet fra det smaksfrigivende tilsetningsstoffet på en styrt måte under røyking av sigaretten. Det smaksfrigivende tilsetningsstoffet muliggjør at smaksstoffet forsterker de subjektive karakteristikkene til sigaretten mens negativ innvirkning fra elektrisiteten til sorbenten i fjerning av valgte gassfasede bestanddeler fra hovedstrømsrøyken hindres. An electrically heated cigarette comprises one or more sorbents and at least one flavoring agent for influencing the taste, aroma and/or aroma of the tobacco smoke. The flavoring may be incorporated into the cigarette in a flavor-releasing additive, which preferably minimizes the release and/or migration of the flavoring in the cigarette prior to smoking. Preferably, the flavor is released from the flavor-releasing additive in a controlled manner during smoking of the cigarette. The flavor-releasing additive enables the flavoring to enhance the subjective characteristics of the cigarette while the negative impact of the electricity on the sorbent in removing selected gas-phase components from the mainstream smoke is prevented.
I den elektrisk oppvarmede sigaretten frigis smaksstoffer i sigaretten ved det smaksfrigivende tilsetningsstoffet som blir oppvarmet til minst en minimumstemperatur (smaksfrigivende temperatur) som inntreffer når en røyker trekker hovedstrømsrøyken gjennom sigaretten. In the electrically heated cigarette, flavors are released into the cigarette by the flavor releasing additive being heated to at least a minimum temperature (flavor releasing temperature) that occurs when a smoker draws the mainstream smoke through the cigarette.
Det er bestemt at ulike områder hos den elektrisk oppvarmede sigaretten oppnår ulike temperaturer når røyker tar et trekk på sigaretten. Ulike smaksfrigivende tilsetningsstoffer kan anbringes selektivt ved to eller flere steder i den elektrisk oppvarmede sigaretten som henholdsvis når minst minimumstemperaturen hvorved smaksstoffet frigis fra det smaksfrigivende tilsetningsstoffet anbrakt på dette stedet. Ved selektivt å velge én eller flere smaksfrigivende tilsetningsstoffer i sigaretten kan sigaretten tilveiebringe virkningsfull, styrt frigivelse av smaksstoffet under røyking. It has been determined that different areas of the electrically heated cigarette reach different temperatures when the smoker takes a drag on the cigarette. Different flavor-releasing additives can be placed selectively at two or more locations in the electrically heated cigarette which respectively reach at least the minimum temperature whereby the flavoring is released from the flavor-releasing additive placed at this location. By selectively choosing one or more flavor-releasing additives in the cigarette, the cigarette can provide effective, controlled release of the flavoring during smoking.
Det smaksfrigivende tilsetningsstoffet kan ha ulike konstruksjoner og sammensetninger og kan anbringes på ett eller flere steder, og/eller innlemmes i én eller flere komponenter hos den elektrisk oppvarmede sigaretten. De smaksfrigivende tilsetningsstoffene kan utformes til å ha ulike tilknyttede smaksfrigivende temperaturer. Følgelig kan de smaksfrigivende tilsetningsstoffene innlemmes i den elektrisk oppvarmede sigaretten ved steder som er mest passende for å tilveiebringe effektiv frigivelse av smaksstoffet fra det spesielle smaksfrigivende tilsetningsstoffet. The flavor-releasing additive can have different constructions and compositions and can be placed in one or more places, and/or incorporated into one or more components of the electrically heated cigarette. The flavor-releasing additives can be designed to have different associated flavor-releasing temperatures. Accordingly, the flavor-releasing additives can be incorporated into the electrically heated cigarette at locations most appropriate to provide effective flavor release from the particular flavor-releasing additive.
Elektrisk oppvarmede sigaretter kan omfatte én eller flere sorbenter i stand til å fjerne valgt gassfasede bestanddeler fra hovedstrømsrøyken. Ved tilveiebringelse av smaksstoffet i det smaksfrigivende tilsetningsstoffet som fortrinnsvis minimerer frigivelsen og/eller migreringen av smaksstoffet i sigaretten til det smaksfrigivende tilsetningsstoffet oppnår minst en minimumstemperatur, hindres smaksstoffet fortrinnsvis i det vesentlige fra deaktivering av sorbenten. På denne måten kan evnen til sorbenten til å fjerne valgte gassfasede bestanddeler fra hovedstrømstobakksrøyken opprettholdes. Fortrinnsvis muliggjør det smaksfrigivende tilsetningsstoffet at smaksstoffet leveres effektivt til en røyker på en styrt måte. Electrically heated cigarettes may comprise one or more sorbents capable of removing selected gas-phase constituents from the mainstream smoke. By providing the flavoring in the flavor-releasing additive that preferably minimizes the release and/or migration of the flavoring in the cigarette until the flavor-releasing additive reaches at least a minimum temperature, the flavoring is preferably substantially prevented from deactivating the sorbent. In this way, the ability of the sorbent to remove selected gas-phase constituents from mainstream tobacco smoke can be maintained. Preferably, the flavor releasing additive enables the flavor to be effectively delivered to a smoker in a controlled manner.
Som brukt her angir uttrykket "sorpsjon" filtrering ved adsorpsjon og/eller absorpsjon. Sorpsjon er ment å omfatte interaksjoner på den ytre overflaten til sorbenten, likesom interaksjoner i porer og kanaler hos sorbenten. Med andre ord er en "sorbent" en substans som har evnen til å kondensere eller holde molekyler av andre substanser på sin overflate, og/eller evnen til å ta opp andre substanser, dvs. gjennom penetrering av andre substanser inn i sin indre struktur, eller inn i sine porer. Uttrykket "sorbent" som brukt her henviser til enten en adsorbent, en absorbent, eller en substans som kan fungere både som en adsorbent og en absorbent. As used herein, the term "sorption" denotes filtration by adsorption and/or absorption. Sorption is intended to include interactions on the outer surface of the sorbent, as well as interactions in the pores and channels of the sorbent. In other words, a "sorbent" is a substance that has the ability to condense or hold molecules of other substances on its surface, and/or the ability to absorb other substances, i.e. through the penetration of other substances into its internal structure, or into their pores. The term "sorbent" as used herein refers to either an adsorbent, an absorbent, or a substance that can function as both an adsorbent and an absorbent.
Som det er brukt her henviser begrepet "fjerne" til adsorpsjon og/eller absorpsjon av minst noen deler av en komponent av hovedstrømstobakkrøyken. As used herein, the term "remove" refers to adsorption and/or absorption of at least some portion of a component of mainstream tobacco smoke.
Begrepet "hovedstrømsrøyk" omfatter blandingen av gassere som passerer ned tobakkstangen og munner ut gjennom filterenden, dvs. mengden røyk som utstedes eller trekkes fra munnenden av sigaretten under røyking av sigaretten. Hovedstrømsrøyken inneholder luft som trekkes inn gjennom det oppvarmede området av sigaretten og gjennom papirinnpakningen. The term "mainstream smoke" includes the mixture of gassers that pass down the tobacco rod and exit through the filter end, i.e. the amount of smoke emitted or drawn from the mouth end of the cigarette during smoking of the cigarette. The mainstream smoke contains air that is drawn in through the heated area of the cigarette and through the paper wrapper.
Begrepet "molekylsil" som brukt her henviser til en porøs struktur omfattet i et uorganisk materiale og/eller organisk materiale. Molekylsiler omfatter naturlige og syntetiske materialer. Molekylsiler kan sorbere molekyler av bestemte dimensjoner, mens molekyler med større dimensjoner avvises. The term "molecular sieve" as used here refers to a porous structure comprised in an inorganic material and/or organic material. Molecular sieves include natural and synthetic materials. Molecular sieves can adsorb molecules of certain dimensions, while molecules with larger dimensions are rejected.
Fig. 1 og 2 illustrerer den elektrisk oppvarmede sigaretten 23. Imidlertid skal det forstås at den elektrisk oppvarmede sigaretten kan ha andre konfigurasjoner passende for røyking i en elektrisk dreven tenner. Den elektrisk oppvarmede sigaretten 23 omfatter en tobakkstang 60 og en filtertupp 62 festet sammen av tippapir 64.Tobakkstangen 60 omfatter fortrinnsvis en tobakksvev eller "matte" 66 foldet til en rørformet form omkring et fristrømsfilter 74 ved én ende og en tobakksplugg 80 ved den andre enden. Figures 1 and 2 illustrate the electrically heated cigarette 23. However, it should be understood that the electrically heated cigarette may have other configurations suitable for smoking in an electrically powered lighter. The electrically heated cigarette 23 comprises a tobacco rod 60 and a filter tip 62 secured together by tip paper 64. The tobacco rod 60 preferably comprises a tobacco web or "mat" 66 folded into a tubular shape around a free-flow filter 74 at one end and a tobacco plug 80 at the other end .
En overomslutning 71 omgir den tobakksinneholdende matten 66 og holdes sammen langs en langsgående søm. Overomslutningen 71 holder matten 66 i en innpakket tilstand omkring fristrømsfilteret 74 og tobakkspluggen 80. An overwrap 71 surrounds the tobacco core-containing mat 66 and is held together along a longitudinal seam. The outer cover 71 keeps the mat 66 in a wrapped state around the free-flow filter 74 and the tobacco plug 80.
Matten 66 omfatter fortrinnsvis en basisvev 68 og et lag med tobakksmateriale 70. Tobakksmaterialet 70 kan være anbrakt langs innsideoverflaten eller utsideoverflaten av basisveven 68. Ved tippenden av tobakkstangen 60 er matten 66 og overomslutningen 71 pakket om fristrømningsfilterpluggen 74. Fortrinnsvis omfatter tobakkspluggen 80 en relativt kort tobakkskolonne 82 av kuttet fylltobakk, som holdes av en omgivende inneromslutning 84. The mat 66 preferably comprises a base fabric 68 and a layer of tobacco material 70. The tobacco material 70 can be placed along the inside surface or the outside surface of the base fabric 68. At the tip end of the tobacco rod 60, the mat 66 and the overwrap 71 are wrapped around the free-flow filter plug 74. Preferably, the tobacco plug 80 comprises a relatively short tobacco column 82 of cut filler tobacco, which is held by a surrounding inner enclosure 84.
Det er et tomrom midt imellom fristrømningsfilteret 74 og tobakkspluggen 80. Tomrommet 90 er en ufylt del av tobakkstangen 60 og er i fluidforbindelse med tuppen 62 gjennom fristrømningsfilteret 74. There is a void midway between the free-flow filter 74 and the tobacco plug 80. The void 90 is an unfilled portion of the tobacco rod 60 and is in fluid communication with the tip 62 through the free-flow filter 74.
Tuppen 62 omfatter fortrinnsvis et fristrømsfilter 92 anbrakt nærliggende tobakkstangen 60 og en munnstykkefilterplugg 94 ved den distale enden av tuppen 62 fra tobakkstangen 60. Fortrinnsvis er fristrømningsfilteret 92 rørformet og overfører luft med svært lavt trykkfall. Munnstykkefilterpluggen 94 lukker av den frie enden av tuppen 62. The tip 62 preferably comprises a free-flow filter 92 located near the tobacco rod 60 and a nozzle filter plug 94 at the distal end of the tip 62 from the tobacco rod 60. Preferably, the free-flow filter 92 is tubular and transmits air with a very low pressure drop. The nozzle filter plug 94 closes off the free end of the tip 62.
Valgfritt omfatter sigaretten 23 minst én rad av perforeringer 12 nærliggende den frie enden 15 av sigaretten 23. Perforeringene kan dannes som spisser 17, som fortrinnsvis strekker seg gjennom overomslutningen 71, matten 66 og inneromslutningen 84. Optionally, the cigarette 23 comprises at least one row of perforations 12 near the free end 15 of the cigarette 23. The perforations can be formed as tips 17, which preferably extend through the outer cover 71, the mat 66 and the inner cover 84.
For å forbedre leveransen ytterligere kan minst én ekstra rad med perforeringer 14 omfattende slisser 17 valgfritt være dannet ved et sted langs tobakkspluggen 80. Perforeringene 12 eller 14 kan omfatte en enkelt rad eller en todelt rad av slisser 17. Antallet og utstrekningen av slissen 17 kan velges for å styre motstanden mot trekk (RTD - resistance to draw) langs sideveggene hos sigaretten 23 og leveransen. To further improve delivery, at least one additional row of perforations 14 comprising slits 17 may optionally be formed at a location along the tobacco plug 80. The perforations 12 or 14 may comprise a single row or a bipartite row of slits 17. The number and extent of slits 17 may is chosen to control the resistance to draw (RTD - resistance to draw) along the side walls of the cigarette 23 and the delivery.
Valgfrie hull 16 tilveiebrakt i matten 66 er dekket av overomslutningen 71. Perforeringene 12, 14 kan anvendes til å tilnærme ønskede leveransenivåer for sigaretten 23, med hullene 16 som brukes til å justere leveransen med en mindre virkning på RTD. Optional holes 16 provided in the mat 66 are covered by the overwrap 71. The perforations 12, 14 can be used to approximate desired delivery levels for the cigarette 23, with the holes 16 being used to adjust the delivery with a minor effect on the RTD.
Sigaretten 23 har fortrinnsvis en tilnærmet konstant diameter langs sin lengde. Diameteren til sigaretten 23, lik mer tradisjonelle sigaretter, er fortrinnsvis mellom omkring 7,5 mm til 8,5 mm slik at det elektriske røykesystemet 21 tilveiebringer en røyker med en familiær "munnfølelse" under røykingen. The cigarette 23 preferably has an approximately constant diameter along its length. The diameter of the cigarette 23, similar to more traditional cigarettes, is preferably between about 7.5 mm to 8.5 mm so that the electric smoking system 21 provides a smoker with a familiar "mouth feel" during smoking.
Tobakkskolonnen 82 omfatter fortrinnsvis et kuttet fyllstoff av en typisk blanding av tobakker, slike blandinger omfatter bright, Burley og orientalske tobakker sammen med, valgfrie, rekonstruerte tobakker og andre blandingskomponenter, omfattende tradisjonelle sigarettsmaksstoffer. The tobacco column 82 preferably comprises a cut filler of a typical blend of tobaccos, such blends comprising bright, burley and oriental tobaccos along with, optionally, reconstituted tobaccos and other blend components, including traditional cigarette flavorings.
Fristrømningsfilteret 92 og munnstykkefilterpluggen 94 er fortrinnsvis festet sammen som en kombinert plugg med en pluggomslutning 101. Pluggomslutningen 101 er fortrinnsvis en porøs, lavvekts pluggomslutning. Den kombinerte pluggen er festet til tobakkstangen 60 ved tippapiret 64. The free flow filter 92 and the nozzle filter plug 94 are preferably secured together as a combined plug with a plug wrap 101. The plug wrap 101 is preferably a porous, lightweight plug wrap. The combined plug is attached to the tobacco rod 60 by the tip paper 64.
Som beskrevet ovenfor kan den elektrisk oppvarmede sigaretten 23 omfatte én eller flere sorbenter som fjerner gassfasede bestanddeler i tobakksrøyken. Sorbenten kan omfatte ett eller flere porøse materialer gjennom hvilke tobakksrøyken kan strømme. I en foretrukket utførelsesform kan sorbenten være aktivt kull. F.eks. kan sorbenten omfatte aktivt kull-granulat anbrakt i et hulrom i filteret, eller aktivt kull-partikler anbrakt på fibrøse materialer eller papir. Det aktive kullet kan være i ulike former omfattende partikler, fibre, kuler og lignende. Aktivt kullet kan ha ulike porøsitetskarakteristikker, slik som en valgt porøs størrelse og et totalt porevolum. As described above, the electrically heated cigarette 23 may comprise one or more sorbents which remove gaseous components in the tobacco smoke. The sorbent may comprise one or more porous materials through which the tobacco smoke can flow. In a preferred embodiment, the sorbent can be activated carbon. E.g. the sorbent may comprise activated carbon granules placed in a cavity in the filter, or activated carbon particles placed on fibrous materials or paper. The activated carbon can be in various forms including particles, fibres, spheres and the like. The activated carbon can have different porosity characteristics, such as a selected porous size and a total pore volume.
I en annen foretrukket utførelsesform er sorbenten én eller flere passende molekylsilsorbentmaterialer. Molekylsilsorbenter som kan anvendes i den elektrisk oppvarmede sigaretten 23 omfatter, men er ikke begrenset til, én eller flere av zeolitter, mesoporøse silikater, aluminiumfosfater, mesoporøse aluminiumssilikater, og andre relaterte porøse materialer, slik som blandede oksidgeler, som valgfritt kan omfatte uorganiske eller organiske ioner eller metaller. Se f.eks. den internasjonale publikasjonen WO 01/80973, som herved innlemmes ved referanse i sin helhet. In another preferred embodiment, the sorbent is one or more suitable molecular sieve sorbent materials. Molecular sieve sorbents that can be used in the electrically heated cigarette 23 include, but are not limited to, one or more of zeolites, mesoporous silicates, aluminum phosphates, mesoporous aluminum silicates, and other related porous materials, such as mixed oxide gels, which may optionally include inorganic or organic ions or metals. See e.g. the international publication WO 01/80973, which is hereby incorporated by reference in its entirety.
I en foretrukket utførelsesform er sorbenten én eller flere zeolitter. Zeolitter omfatter krystalinaluminiumsilikater med porer, slik som kanaler og/eller hulrom, av uniforme, molekylære størrelsesdimensjoner. Det er mange kjente unike zeolittstrukturer med ulike størrelser og med formede porer, som kan vesentlig påvirke egenskapene til disse materialene med tanke på sorpsjon og separasjonsprosesser. Molekyler kan separeres av zeolittene ved størrelse og form som virker relatert til den mulige orienteringen av molekylene i porene, og/eller ved ulikheter i styrken på sorpsjonen. En eller flere zeolitter med porer større enn én eller flere valgte gassfasede komponenter av en gass som er ønsket å bli filtrert kan bli anvendt i den elektrisk oppvarmede sigaretten 23, slik at kun valgte molekyler som er små nok til å passere gjennom porene i molekylærhusmaterialet er i stand til å entre hulrommene og bli sorbert på zeolitten. In a preferred embodiment, the sorbent is one or more zeolites. Zeolites comprise crystalline aluminum silicates with pores, such as channels and/or voids, of uniform molecular size dimensions. There are many known unique zeolite structures with different sizes and with shaped pores, which can significantly influence the properties of these materials in terms of sorption and separation processes. Molecules can be separated from the zeolites by size and shape, which seem related to the possible orientation of the molecules in the pores, and/or by differences in the strength of the sorption. One or more zeolites with pores larger than one or more selected gas-phase components of a gas that is desired to be filtered may be used in the electrically heated cigarette 23, so that only selected molecules that are small enough to pass through the pores of the molecular housing material are able to enter the cavities and be sorbed on the zeolite.
Zeolitten kan være, men er ikke begrenset til, én eller flere av zeolitt A; zeolitt X, zeolitt Y; zeolitt K-; zeolitt ZK-5; zeolitt BETA; zeolitt ZK-4 og zeolitt ZSM-5. I en foretrukket utførelsesform anvendes zeolitt ZSM-5 og/eller zeolitt BETA. ZSM-5 er i MFI-strukturklassifikasjonsfamilien og er representert ved de krystallkjemiske dataene [Nan(Al„Si96-nOi92)~16H20, med n < 27, ortorombisk, Pnma], mens zeolitten BETA er i BEA-strukturklassifikasjonsfamilien og er representert ved de krystallkjemiske dataene [Na7(Al7Sis70i28) tetragonal, P4i22]. Disse to zeolittene er termisk stabile ved temperaturer opptil 800°C, noe som tillater dem å bli innlemmet i sigarettfilteret og/eller tobakkstangen hos den elektrisk oppvarmede sigaretten 23. The zeolite may be, but is not limited to, one or more of zeolite A; zeolite X, zeolite Y; zeolite K-; zeolite ZK-5; zeolite BETA; zeolite ZK-4 and zeolite ZSM-5. In a preferred embodiment, zeolite ZSM-5 and/or zeolite BETA are used. ZSM-5 is in the MFI structural classification family and is represented by the crystal chemical data [Nan(Al„Si96-nOi92)~16H20, with n < 27, orthorhombic, Pnma], while the zeolite BETA is in the BEA structural classification family and is represented by the the crystal chemical data [Na7(Al7Sis70i28) tetragonal, P4i22]. These two zeolites are thermally stable at temperatures up to 800°C, which allows them to be incorporated into the cigarette filter and/or tobacco rod of the electrically heated cigarette 23.
I en annen foretrukket utførelsesform har sorbenten innlemmet i den elektrisk oppvarmede sigaretten 23 en komposittsammensetning. I en slik utførelsesform omfatter sorbenten f.eks. aktivt kull eller én eller flere molekylærhylsematerialer, slik som de beskrevet ovenfor. F. eks. kan sorbentfibre bli impregnert med minst én sorbent. In another preferred embodiment, the sorbent incorporated in the electrically heated cigarette 23 has a composite composition. In such an embodiment, the sorbent e.g. activated carbon or one or more molecular shell materials, such as those described above. For example sorbent fibers can be impregnated with at least one sorbent.
Mikroporøse, mesoporøse og/eller makroporøse molekylærhylser kan anvendes i den elektrisk oppvarmede sigaretten 23, avhengig av den eller de valgte komponentene som er ønske skal fjernes fra hovedstrømstobakkrøyken. Microporous, mesoporous and/or macroporous molecular sleeves can be used in the electrically heated cigarette 23, depending on the selected component(s) which are desired to be removed from the mainstream tobacco smoke.
Sorbenten kan innlemmes på ett eller flere steder i den elektrisk oppvarmede sigaretten 23. F.eks. kan sorbenten plasseres i passasjen til det rørformede fristrømsfilteret 74, i fristrømsfilteret 92, og/eller i tomrommet 90. Sorbenten kan i tillegg eller alternativt være innlemmet i tobakkspluggen 80. The sorbent can be incorporated in one or more places in the electrically heated cigarette 23. E.g. the sorbent can be placed in the passage of the tubular free-flow filter 74, in the free-flow filter 92, and/or in the void 90. The sorbent can additionally or alternatively be incorporated into the tobacco plug 80.
Fig. 3 viser en annen foretrukket utførelsesform av en elektrisk oppvarmet sigarett 23 omfattende et filter 150. Filteret 150 omfatter en sorbent i form av orienterte fibre 152 og en hylse 154, slik som papir, som omgir fibrene. Sorbenten kan f.eks. være én eller flere av aktivt kull, silikagel, zeolitt og andre molekylærhylser i fibrøs form. Sorbentene kan være overflatemodifiserte materialer, f.eks. overflatemodifisert silikagel, slik som aminopropylsilyl (APS) silikagel. Sorbentblandinger kan tilveiebringe ulike filtreringskarakteristikker for å oppnå en ønsket filtrert hovedstrømsrøyksammensetning. Fig. 3 shows another preferred embodiment of an electrically heated cigarette 23 comprising a filter 150. The filter 150 comprises a sorbent in the form of oriented fibers 152 and a sleeve 154, such as paper, which surrounds the fibers. The sorbent can e.g. be one or more of activated carbon, silica gel, zeolite and other molecular shells in fibrous form. The sorbents can be surface-modified materials, e.g. surface modified silica gel, such as aminopropylsilyl (APS) silica gel. Sorbent mixtures can provide different filtration characteristics to achieve a desired filtered mainstream smoke composition.
Alternativt kan fibrene 152 omfatte én eller flere sorbentmaterialer, slik som karbon, silika, zeolitt og lignende, impregnert i mikrohulromsfibre, slik som TRI AD™ mikrohulromsfiber, som vist i WO 01/80973. I en foretrukket utførelsesform er fibrene formede mikrohulromsfibre impregnert med partikler av ett eller flere sorbentmaterialer, eller alternativt kontinuerlig aktivt kull-fibre. Fibrene har fortrinnsvis en diameter fra omkring 10 mikroner til omkring 100 mikroner. Fibrene kan ha en lengde fra 10 mikroner til omkring 200 mikroner f.eks. Alternatively, the fibers 152 may comprise one or more sorbent materials, such as carbon, silica, zeolite and the like, impregnated in microcavity fibers, such as TRI AD™ microcavity fiber, as shown in WO 01/80973. In a preferred embodiment, the fibers are shaped microcavity fibers impregnated with particles of one or more sorbent materials, or alternatively continuous activated carbon fibers. The fibers preferably have a diameter of from about 10 microns to about 100 microns. The fibers can have a length from 10 microns to around 200 microns, e.g.
I en annen foretrukket utførelsesform er fibrene bunter av ikke-kontinuerlige fibre, som fortrinnsvis er parallelt orientert i retningen til hovedstrømsrøyken som strømmer gjennom den elektrisk oppvarmede sigaretten. In another preferred embodiment, the fibers are bundles of discontinuous fibers, which are preferably parallel oriented in the direction of the mainstream smoke flowing through the electrically heated cigarette.
Filtrene 150 omfattende fibre 152 kan f.eks. være dannet ved strekking av en bunt av ikke-krusede sorbentfibermaterialer, fortrinnsvis med en styrt total- og per-filament-denier (eng: denier), hvorigjennom det under filterdanningsprosessen dannes en hylse 154 på forhånd eller på stedet. Det dannede filteret kan størrelsestilpasses ved kutting til en ønsket lengde. F.eks. kan filtrene ha en lengde på fra omkring 5 mm til omkring 30 mm. The filters 150 comprising fibers 152 can e.g. be formed by stretching a bundle of non-crimped sorbent fiber materials, preferably with a controlled total and per-filament denier (eng: denier), whereby during the filter forming process a sleeve 154 is formed in advance or on site. The formed filter can be sized by cutting to a desired length. E.g. the filters can have a length of from about 5 mm to about 30 mm.
Filteret 150 omfattende fibrene 152 kan innlemmes i den elektrisk oppvarmede sigaretten ved én eller flere ønskede steder. Det henvises også til fig. 1 og 2 i en foretrukket utførelsesform, hvor filteret 150 kan erstattes av hele fristrømsfilteret 32. I en annen foretrukket utførelsesform kan fristrømsfilteret 150 erstattes av en del av fristrømsfilteret 152. Filteret 150 kan være i kontakt med (dvs. støte opp mot) fristrømsfilteret 74, anbrakt mellom fristrømsfilteret 74 og munnstykkefilterpluggen 94, eller i kontakt med (dvs. støtte opp mot) munnstykkefilterpluggen 94. Filteret 150 har fortrinnsvis en diameter som er vesentlig lik den til den ytre diameteren til fristrømsfilteret 92 for å minimere omgåelse av røyk under filtreringsprosessen. The filter 150 comprising the fibers 152 may be incorporated into the electrically heated cigarette at one or more desired locations. Reference is also made to fig. 1 and 2 in a preferred embodiment, where the filter 150 can be replaced by the entire free-flow filter 32. In another preferred embodiment, the free-flow filter 150 can be replaced by a part of the free-flow filter 152. The filter 150 can be in contact with (i.e. abut against) the free-flow filter 74 , placed between the free-flow filter 74 and the nozzle filter plug 94, or in contact with (i.e., abutting against) the nozzle filter plug 94. The filter 150 preferably has a diameter substantially equal to that of the outer diameter of the free-flow filter 92 to minimize bypassing of smoke during the filtering process.
De fibrøse sorbentene har fortrinnsvis en høyt loft (eng: loft) med en passende pakketetthet og fiberlengde slik at parallelle baner dannes mellom fibrene. Slike strukturer kan effektivt fjerne vesentlige mengder av valgte gassfasede bestanddeler, slik som formaldehyd og/eller akrolein, mens fortrinnsvis kun en minimal mengde av bestemt materiale fjernes fra røyken, for med dette å oppnå en vesentlig reduksjon av de valgte gassfasede bestanddelene, mens det totale partikkelmaterialet (TPM - Total Particulate Matter) i gassen ikke påvirkes vesentlig. En tilstrekkelig lav pakketetthet og en tilstrekkelig lav fiberlengde er foretrukket for å oppnå en slik filtreringsvirkning. The fibrous sorbents preferably have a high ceiling (eng: loft) with a suitable packing density and fiber length so that parallel paths are formed between the fibers. Such structures can effectively remove significant amounts of selected gas-phase components, such as formaldehyde and/or acrolein, while preferably only a minimal amount of certain material is removed from the smoke, thereby achieving a significant reduction of the selected gas-phase components, while the total the particulate matter (TPM - Total Particulate Matter) in the gas is not significantly affected. A sufficiently low packing density and a sufficiently low fiber length are preferred to achieve such a filtering effect.
Mengden sorbent som anvendes i foretrukne utførelsesformer av den elektriske oppvarmede sigaretten 23 avhenger av mengden valgte gassfasede bestanddeler i tobakksrøyken og mengden bestanddeler som er ønsket at skal fjernes fra tobakksrøyken. The amount of sorbent used in preferred embodiments of the electric heated cigarette 23 depends on the amount of selected gas phase components in the tobacco smoke and the amount of components that are desired to be removed from the tobacco smoke.
Som beskrevet ovenfor omfatter den elektrisk oppvarmede sigaretten 23 også minst ett smaksfrigivende tilsetningsstoff. Smaksstoffet kan f.eks. være ett eller flere smaksstoffer omfattende, men ikke begrenset til, mentol, mint, slik som peppermynte og spearmint, sjokolade, lakris, sitrus og andre fruktsmaker, gammaoktalacton, vanilje, etylvanilje, frisk pust givende smaksstoffer, kryddersmaker, slik som kanel, metylsalicylat, linalool, bergamotolje, geraniumolje, sitronolje, ingefærolje og tobakksmak. I en foretrukket utførelsesform er smaksstoffet mentol og valgfritt minst én mintsmak. As described above, the electrically heated cigarette 23 also comprises at least one flavor-releasing additive. The flavoring can e.g. be one or more flavors including, but not limited to, menthol, mint, such as peppermint and spearmint, chocolate, licorice, citrus and other fruit flavors, gamma octalactone, vanilla, ethyl vanilla, fresh breath flavorings, spice flavors, such as cinnamon, methyl salicylate, linalool, bergamot oil, geranium oil, lemon oil, ginger oil and tobacco flavour. In a preferred embodiment, the flavoring agent is menthol and optionally at least one mint flavor.
Som beskrevet ovenfor kan det smaksfrigivende tilsetningsstoffet ha ulike strukturer og sammensetninger i den elektriske oppvarmede sigaretten. Det smaksfrigivende tilsetningsstoffet kan være i form av kuler. Kulene innkapsler fortrinnsvis smaksstoffet og sørger for styrt frigivelse av smaksstoffet i sigaretten under trekksykluser. As described above, the flavor-releasing additive can have different structures and compositions in the electric heated cigarette. The flavor-releasing additive can be in the form of balls. The balls preferably encapsulate the flavoring and ensure controlled release of the flavoring in the cigarette during puff cycles.
Kulene omfatter fortrinnsvis minst ett innkapslingsmateriale og minst ett smaksstoff. Innkapslingsmaterialet omfatter fortrinnsvis et bindestoff, som f.eks. kan være én eller flere av palmeolje, konjacgummi, xylitol, zein, hydroksypropylcellulose, sorbitol, maltitol og hydroksypropylmetylcellulose. Andre materialer av kjent type som kan forbedre de kuledannende karakteristikkene til innkapslingsmaterialet eller øke dettes stabilitet kan valgfritt også tilføres i kulene. Kulene kan ha en vesentlig homogen sammensetning hvor smaksstoffet i det vesentlige er likt fordelt. Ved en slik struktur kan smaksstoffet frigis fra kulene på en mer uniform måte under røyking. The balls preferably comprise at least one encapsulating material and at least one flavouring. The encapsulation material preferably comprises a binder, which e.g. may be one or more of palm oil, konjac gum, xylitol, zein, hydroxypropyl cellulose, sorbitol, maltitol and hydroxypropyl methylcellulose. Other materials of a known type which can improve the ball-forming characteristics of the encapsulation material or increase its stability can optionally also be added to the balls. The balls can have a substantially homogeneous composition where the flavoring substance is essentially equally distributed. With such a structure, the flavoring can be released from the balls in a more uniform way during smoking.
Avhengig av sammensetningen til kulene kan minimumstemperaturen hvorved kulene frigir smaksstoff justeres. Kuler som omfatter ett eller flere av de ovenfor beskrevne bindemidlene har fortrinnsvis en minimumstemperatur hvorved smaksstoffet frigis på omkring minst 40°C, slik som omkring 40°C til omkring 150°C. Kulene beskytter smaksstoffet for eksponering for uønskede substanser i atmosfæren (f.eks. omgivende luft, innsiden av en pakning) og uønskede substanser i sigaretten, og minimerer fortrinnsvis frigivelsen og/eller migreringen av smaksstoffet til det smaksfrigivende tilsetningsstoffet er oppvarmet til en tilstrekkelig høy temperatur under røyking av sigaretten. Følgelig hindres smaksstoffet fortrinnsvis vesentlig fra å migrere fra sigaretten, reagere med andre substanser i sigaretten eller med omgivelsene, og deaktivere sorbenten som er til stede i sigaretten. Depending on the composition of the balls, the minimum temperature at which the balls release flavoring can be adjusted. Balls comprising one or more of the binders described above preferably have a minimum temperature at which the flavor is released of about at least 40°C, such as about 40°C to about 150°C. The spheres protect the flavor from exposure to unwanted substances in the atmosphere (e.g., ambient air, inside of a pack) and unwanted substances in the cigarette, and preferably minimize the release and/or migration of the flavor until the flavor-releasing additive is heated to a sufficiently high temperature while smoking the cigarette. Accordingly, the flavoring is preferably substantially prevented from migrating from the cigarette, reacting with other substances in the cigarette or with the environment, and deactivating the sorbent present in the cigarette.
Kulene kan ha enhver ønsket form, slik som ulike regulære og irregulære former, omfattende rund, kvadratisk, rektangulær, oval, eller polygonal form, sylindrisk, fibrøse, og lignende. Kulene kan ha ulike størrelser. Fortrinnsvis er kulene mikrokuler med en maksimal partikkelstørrelse mindre enn omkring 25 mikroner, og enda mer fortrinnsvis mindre enn omkring 1 mikron. Reduksjon av størrelsen til kulene kan tilveiebringe en mer homogen og styrt frigivelse av smaksstoffet ved å tilveiebringe et økt overflateområde for kulene. The balls can have any desired shape, such as various regular and irregular shapes, including round, square, rectangular, oval, or polygonal shape, cylindrical, fibrous, and the like. The balls can have different sizes. Preferably, the spheres are microspheres with a maximum particle size of less than about 25 microns, and even more preferably less than about 1 micron. Reducing the size of the spheres can provide a more homogeneous and controlled release of the flavoring by providing an increased surface area for the spheres.
Kulene kan fremstilles ved enhver passende prosess som tilveiebringer kuler med ønsket struktur, sammensetning og størrelse. F.eks. kan kulene fremstilles ved ekstrudering, spraytørking, belegging eller andre passende prosesser Kulene kan være dannet ved danning av en løsning, dispergering eller emulsjon som inneholder et bindemiddel, smaksstoff og valgfrie tilsetningsstoffer for å danne kuler, som kan isoleres og tørkes. Prosesser for forberedelser av kuler som inneholder en aktiv ingrediens, slik som et smaksstoff, er vist i US 6 325 859, som herved innlemmes ved referanse i sin helhet. The spheres may be produced by any suitable process which provides spheres of the desired structure, composition and size. E.g. the spheres may be made by extrusion, spray drying, coating or other suitable processes. Processes for preparing spheres containing an active ingredient, such as a flavoring, are shown in US 6,325,859, which is hereby incorporated by reference in its entirety.
Den elektrisk oppvarmede sigaretten 23 omfatter fortrinnsvis en mengde kuler som tilveiebringer en ønsket mengde av smaksstoff i sigaretten. Den elektrisk oppvarmede sigaretten kan omfatte basert på den totale vekten av tobakk i sigaretten, opptil 20 %, og mer foretrukket omkring 10-15 %, av kulene. F.eks. inneholder en sigarett som inneholder 100 mg tobakk fortrinnsvis opptil omkring 20 mg kuler. Kulene kan fortrinnsvis omfatte opptil omkring 20 % smaksstoff. Sigaretten kan f.eks. omfatte fra 1 mg til omkring 15 mg smaksstoff. The electrically heated cigarette 23 preferably comprises a quantity of balls which provide a desired quantity of flavoring in the cigarette. The electrically heated cigarette may comprise, based on the total weight of tobacco in the cigarette, up to 20%, and more preferably about 10-15%, of the pellets. E.g. contains a cigarette containing 100 mg of tobacco preferably up to about 20 mg pellets. The balls can preferably comprise up to about 20% flavouring. The cigarette can e.g. comprise from 1 mg to about 15 mg flavoring.
Kulene kan være anbrakt ved minst ett sted i den elektrisk oppvarmede sigaretten 23 som oppnår minst minimumstemperatur hvorved smaksstoffet frigis fra kulene og inn i sigaretten under røyking. F.eks. kan kulene anbringes i tobakkstangen 60, i rommet 90 mellom tobakkspluggen 80 og fristrømsfilteret 74, på én eller flere overflater hos fristrømsfilteret 74, på eller i matten 66, og/eller på eller i den indre innpakningen 84 som omgir tobakkspluggen 80. The balls can be located at at least one place in the electrically heated cigarette 23 which achieves at least the minimum temperature whereby the flavoring substance is released from the balls and into the cigarette during smoking. E.g. the balls can be placed in the tobacco rod 60, in the space 90 between the tobacco plug 80 and the free-flow filter 74, on one or more surfaces of the free-flow filter 74, on or in the mat 66, and/or on or in the inner wrapper 84 which surrounds the tobacco plug 80.
Ulike kulesammensetninger kan være med to eller flere ulike minimumssmaksfrigivende temperaturer innlemmes ved to eller flere steder i en elektrisk oppvarmet sigarett som når ulike temperaturer ved ulike steder under røyking. F.eks. kan kuler med en første smaksfrigivende temperatur anbringes ved et første sted i sigaretten som når den første smaksfrigivende temperaturen, og kulene med en andre smaksfrigivende temperatur høyere enn den første smaksfrigivende temperaturen kan anbringes ved et andre sted i sigaretten som holder den andre smaksfrigivende temperaturen. F.eks. kan de to smaksfrigivende temperaturene variere med opptil 100°C. F.eks. kan disse to temperaturene variere med opptil omkring 10°C, 20°C, 30°C, 40°C, 50°C, 60°C, 70°C, 80°C, 90°C eller 100°C. Different ball compositions can be with two or more different minimum flavor-releasing temperatures incorporated at two or more places in an electrically heated cigarette that reaches different temperatures at different places during smoking. E.g. balls with a first flavor releasing temperature can be placed at a first location in the cigarette that reaches the first flavor releasing temperature, and balls with a second flavor releasing temperature higher than the first flavor releasing temperature can be placed at a second location in the cigarette that maintains the second flavor releasing temperature. E.g. the two flavor-releasing temperatures can vary by up to 100°C. E.g. these two temperatures can vary by up to about 10°C, 20°C, 30°C, 40°C, 50°C, 60°C, 70°C, 80°C, 90°C or 100°C.
Det smaksfrigivende tilsetningsstoffet kan omfatte en film. Filmen innkapsler fortrinnsvis smaksstoffet og muliggjør styrt temperaturfrigivelse av smaksstoffet i sigaretten under røyking Filmen kan vektmessig omfatte opptil 20 %, enda mer foretrukket omkring 10 % til omkring 15 %, av smaksstoffet. Filmen kan innkapsle mentol og valgfritt også mint. The flavor releasing additive may comprise a film. The film preferably encapsulates the flavoring and enables controlled temperature release of the flavoring in the cigarette during smoking. The film can comprise up to 20% by weight, even more preferably about 10% to about 15%, of the flavoring. The film can encapsulate menthol and optionally also mint.
Det smaksfrigivende tilsetningsstoffet av filmtypen omfatter fortrinnsvis minst ett innkapslingsmateriale og minst ett smaksstoff. Innkapslingsmaterialet omfatter fortrinnsvis et bindemiddel, som f.eks. kan være ett eller flere av følgende: karagenan, gelatin, agar, gellangummi, gummi arabikum, guargummi, xantumgummi, og pektin. Andre kjente materialer som kan forbedre de filmdannende egenskapene til innkapslingsmaterialet eller øke dettes stabilitet kan valgfritt tilføres filmen. Filmen kan ha en vesentlig homogen sammensetning hvorved smaksstoffet i det vesentlige distribueres uniformt. Med en slik struktur kan smaksstoffer frigis fra filmen på en mer ønsket måte under røyking. Filmen som innkapsler materialet tilveiebringer en barriere for frigivelsen av smaksstoffet. The flavor-releasing additive of the film type preferably comprises at least one encapsulating material and at least one flavouring. The encapsulation material preferably comprises a binder, which e.g. may be one or more of the following: carrageenan, gelatin, agar, gellan gum, gum arabic, guar gum, xanthum gum, and pectin. Other known materials which can improve the film-forming properties of the encapsulation material or increase its stability can optionally be added to the film. The film can have a substantially homogeneous composition whereby the flavoring substance is substantially uniformly distributed. With such a structure, flavors can be released from the film in a more desirable way during smoking. The film encapsulating the material provides a barrier to the release of the flavouring.
Avhengig av sammensetningen til filmen, kan minimumstemperaturen hvorved filmen frigir smaksstoffet bli justert/valgt. En film omfattende én eller flere av de ovenfor beskrevne bindemidlene har fortrinnsvis en minimumstemperatur hvorved smaksstoffet frigis på minst omkring 50°C, slik som opptil omkring 120°C. Filmen beskytter smaksstoffet fra eksponering for uønskede substanser i sigaretten og atmosfæren og hindrer i det vesentlige smaksstoffet fra å bli frigitt helt til filmen oppvarmes til den smaksfrigivende temperaturen under røyking av sigaretten. Depending on the composition of the film, the minimum temperature at which the film releases the flavoring can be adjusted/selected. A film comprising one or more of the above-described binders preferably has a minimum temperature at which the flavor is released of at least about 50°C, such as up to about 120°C. The film protects the flavoring from exposure to unwanted substances in the cigarette and the atmosphere and essentially prevents the flavoring from being released until the film is heated to the flavor-releasing temperature during smoking of the cigarette.
Filmen kan påføres én eller flere komponenter hos den elektrisk oppvarmede sigaretten som et flytende belegg, som så tørkes til en film. Dimensjonene på den tørkede filmen er ikke begrenset. Fortrinnsvis har den tørkede filmen en maksimal tykkelse på omkring 50 mikroner til omkring 150 mikroner, og mer fortrinnsvis omkring 75 mikroner. The film can be applied to one or more components of the electrically heated cigarette as a liquid coating, which is then dried into a film. The dimensions of the dried film are not limited. Preferably, the dried film has a maximum thickness of about 50 microns to about 150 microns, and more preferably about 75 microns.
Filmen kan produseres ved enhver passende prosess som tilveiebringer en film med en ønsket struktur, sammensetning og dimensjoner. F.eks. kan filmen påføres ved en beleggingsprosess, slik som spraybelegging, en dyppeprosess, elektrostatisk avsetting, typehjulanvendelse, graveringstrykking, blekkskriving og lignende. En emulsjon, suspensjon eller slurry kan forberedes omfattende bindemidlet, smaksstoffet og valgfrie tilsetningsstoffer og påføres så som et belegg til én eller flere valgte overflater på én eller flere valgte komponenter hos den elektrisk oppvarmede sigaretten. Belegget tørkes fortrinnsvis for å fjerne vann og/eller andre solventer og danner en fast film med ønskede dimensjoner. Eksempler på prosesser som kan anvendes til å forberede filmene er beskrevet i US 3 006 347 og 4 715 319, hvor hver av disse er innlemmet i sin helhet ved referanse. The film may be produced by any suitable process which provides a film of a desired structure, composition and dimensions. E.g. the film can be applied by a coating process, such as spray coating, a dipping process, electrostatic deposition, type wheel application, gravure printing, ink printing and the like. An emulsion, suspension or slurry may be prepared comprising the binder, flavoring agent and optional additives and then applied as a coating to one or more selected surfaces of one or more selected components of the electrically heated cigarette. The coating is preferably dried to remove water and/or other solvents and forms a solid film with desired dimensions. Examples of processes that can be used to prepare the films are described in US 3,006,347 and 4,715,319, each of which is incorporated by reference in its entirety.
Den elektrisk oppvarmede sigaretten 23 omfatter fortrinnsvis en mengde film som frigir den ønskede mengden av smaksstoff under røyking av sigaretten. Den elektrisk oppvarmede sigaretten kan omfatte, basert på den totale vekten av tobakk i sigaretten hvortil film påføres, opptil omkring 20 % og mer fortrinnsvis omkring 10 % til omkring 15 % av filmen. For eksempel dersom filmen påføres matten, er vekten til tobakken anbrakt i matten fortrinnsvis vektbasisen for mengden film. Dersom film påføres matten og til tobakkspluggen er den totale vekten til tobakken inneholdt i matten og tobakkspluggen fortrinnsvis vektbasis for mengden film som påføres i sigaretten. Det er foretrukket at dersom vekten til tobakken anbrakt i matten er vektbasis for mengden film påført til matten, og vekten av tobakk anbrakt i tobakkspluggen er vektbasis for mengden film påført tobakkspluggen Sigaretten kan omfatte fra omkring 1 mg til omkring 15 mg smaksstoff. Filmen kan være anbrakt på minst ett sted i den elektrisk oppvarmede sigaretten 23 som når den minst smaksfrigivende temperaturen. F.eks. kan filmen bli anbrakt på tobakkspluggen 80, på inneromslutningen 84 som omgir tobakkspluggen 80, på matten 66 og/eller på overomslutningen 71 som omgir matten. Når filmen er anbrakt på inneromslutningen 84 og/eller over overomslutningen 71 er vekten til inneromslutningen 84 og/eller overomslutningen 71 vektbasis for mengden film. Filmen kan også være preformet, oppremset og innlemmet i tobakkspluggen 80, og/eller andre valgte steder som når den smaksfrigivende temperaturen. The electrically heated cigarette 23 preferably comprises an amount of film which releases the desired amount of flavoring during smoking of the cigarette. The electrically heated cigarette may comprise, based on the total weight of tobacco in the film-applied cigarette, up to about 20% and more preferably about 10% to about 15% of the film. For example, if the film is applied to the mat, the weight of the tobacco placed in the mat is preferably the weight basis for the amount of film. If film is applied to the mat and to the tobacco plug, the total weight of the tobacco contained in the mat and the tobacco plug is preferably the weight basis for the amount of film applied to the cigarette. It is preferred that if the weight of the tobacco placed in the mat is the weight basis for the amount of film applied to the mat, and the weight of tobacco placed in the tobacco plug is the weight basis for the amount of film applied to the tobacco plug, the cigarette may comprise from about 1 mg to about 15 mg of flavouring. The film can be placed in at least one place in the electrically heated cigarette 23 which reaches the least flavor-releasing temperature. E.g. the film may be placed on the tobacco plug 80, on the inner casing 84 surrounding the tobacco plug 80, on the mat 66 and/or on the outer casing 71 surrounding the mat. When the film is placed on the inner casing 84 and/or over the outer casing 71, the weight of the inner casing 84 and/or the outer casing 71 is the weight basis for the amount of film. The film may also be preformed, rolled up and incorporated into the tobacco plug 80, and/or other selected locations that reach the flavor releasing temperature.
Ulike smakstilsatte filmer med to eller flere ulike minimale Different flavored films with two or more different minimals
smaksstoffrigivelsestemperaturer kan bli innlemmet ved ulike steder i en elektrisk oppvarmet sigarett, hvorunder røyking av sigaretten vil temperaturene på ulike steder overstige minimumsfrigivelsestemperaturene for de ulike filmene. flavoring release temperatures may be incorporated at various locations in an electrically heated cigarette, during smoking of the cigarette the temperatures at various locations will exceed the minimum release temperatures of the various films.
I en foretrukket utførelsesform er det smaksfrigivende tilsetningsstoffet et inklusjonskompleks. Inklusjonskomplekset omfatter et "vertsmolekyl", og smaksstoffet er "gjestemolekylet" i inklusjonskomplekset. Inklusjonskomplekset sørger for styrt frigivelse av smaksstoffer i sigaretten undre røyking. I en foretrukket utførelsesform er smaksstoffet et lipofilt organisk smaksstoff, som fortrinnsvis konsentrerer seg inne i et hydrofobt hulrom i vertsmolekylet. Passende smaksstoffer omfatter, men er ikke begrenset til, mentol, mint, slik som peppermynte og spearmint, sjokolade, lakris, sitrus og andre fruktsmaker, gammaoktalakton, vanilje, etylvanilje, frisk pust smaksstoffer, kryddersmaker, så som kanel, metylsalicylat, linalool, bergamotolje, geraniumolje, sitronolje, ingerfærolje og tobakkssmak. I en foretrukket utførelsesform omfatter smaksstoffet vanilje og gammaoktalakton. I en foretrukket utførelsesform omfatter inklusjonskomplekset vektmessig opptil 20 %, mer fortrinnsvis fra omkring 10 % til omkring 15 %, av smaksstoffet. In a preferred embodiment, the flavor-releasing additive is an inclusion complex. The inclusion complex comprises a "host molecule", and the flavoring substance is the "guest molecule" in the inclusion complex. The inclusion complex ensures the controlled release of flavoring substances in the cigarette during smoking. In a preferred embodiment, the flavoring substance is a lipophilic organic flavoring substance, which preferably concentrates inside a hydrophobic cavity in the host molecule. Suitable flavors include, but are not limited to, menthol, mint, such as peppermint and spearmint, chocolate, licorice, citrus and other fruit flavors, gamma octalactone, vanilla, ethyl vanilla, fresh breath flavorings, spice flavors, such as cinnamon, methyl salicylate, linalool, oil of bergamot , geranium oil, lemon oil, ginger oil and tobacco flavour. In a preferred embodiment, the flavoring comprises vanilla and gamma octalactone. In a preferred embodiment, the inclusion complex comprises up to 20% by weight, more preferably from about 10% to about 15%, of the flavouring.
Vertsmolekylet for inklusjonskomplekset er fortrinnsvis et syklodekstrin. Syklodekstriner er sykliske oligosakkarider omfattende glykopyranose-subenheter, som f.eks. beskrevet i US 3 426 011 og US 5 144 964, hvor hver av disse her er innlemmet i sin helhet ved referanse. Inklusjonskomplekset blir dannet når et smaksmateriale blir blandet med et valgt syklodekstrin i løsning. Smaksstoffet holder seg inne i syklodekstrin-ringstrukturen. Syklodekstrinet og smaksstoffet er typisk felt ut sammen, filtrert og tørket. The host molecule for the inclusion complex is preferably a cyclodextrin. Cyclodextrins are cyclic oligosaccharides comprising glycopyranose subunits, such as e.g. described in US 3,426,011 and US 5,144,964, each of which is hereby incorporated by reference in its entirety. The inclusion complex is formed when a flavor material is mixed with a selected cyclodextrin in solution. The flavor stays within the cyclodextrin ring structure. The cyclodextrin and flavoring are typically precipitated together, filtered and dried.
Alfa-syklodekstrin, beta-syklodekstrin og gamma-syklodekstrin omfatter henholdsvis seks, syv og åtte glykopyranose-subenheter. I en foretrukket utførelsesform omfatter inklusjonskomplekset beta-syklodekstrin, som ønskelig kan tilpasses et stort antall gjestemolekyler og er enkelt tilgjengelig. Beta-syklodekstrin har en ringstruktur av de forbundne subenhetene med en tredimensjonal torus-konfigurasjon omfattende et hydrofobt hulrom med en diameter på 7,5 Å og hydrofile øvre og nedre kanter. Alpha-cyclodextrin, beta-cyclodextrin and gamma-cyclodextrin comprise six, seven and eight glycopyranose subunits respectively. In a preferred embodiment, the inclusion complex comprises beta-cyclodextrin, which can be adapted to a large number of guest molecules and is easily available. Beta-cyclodextrin has a ring structure of the linked subunits with a three-dimensional torus configuration comprising a hydrophobic cavity with a diameter of 7.5 Å and hydrophilic upper and lower edges.
Minimumstemperaturen hvorved inklusjonskomplekset omfatter en syklodekstrinfrigivelse av smaksstoffet er fortrinnsvis omkring 60°C, slik som fra omkring 60°C til omkring 125°C. Ved innlemming av smaksstoffet i inklusjonskomplekset kan smaksstoffet bli beskyttet fra eksponering for uønskede substanser i sigaretten og frigivelsen og/eller migrasjonen av smaksstoffet til atmosfæren er fortrinnsvis minimert helt til det smaksfrigivende tilsetningsstoffet er oppvarmet til den smaksfrigivende temperaturen under røyking av sigaretten. The minimum temperature at which the inclusion complex comprises a cyclodextrin release of the flavor is preferably about 60°C, such as from about 60°C to about 125°C. By incorporating the flavor in the inclusion complex, the flavor can be protected from exposure to unwanted substances in the cigarette and the release and/or migration of the flavor into the atmosphere is preferably minimized until the flavor-releasing additive is heated to the flavor-releasing temperature during smoking of the cigarette.
Inklusjonskomplekset er fortrinnsvis i pulverform. Pulveret har fortrinnsvis en maksimal størrelse på mindre enn omkring 200 mikroner. The inclusion complex is preferably in powder form. The powder preferably has a maximum size of less than about 200 microns.
Inklusjonskomplekset kan være laget ved å danne en vannholdig løsning av beta-syklodekstrin og smaksstoffet. Inklusjonskomplekset kan gjenopprettes fra løsningen i pulverform. Imidlertid kan løsningen påføres direkte til én eller flere valgte steder hos én eller flere komponenter hos den elektrisk oppvarmede sigaretten ved enhver passende prosess. Inklusjonskompleksspulveret kan alternativt bli anvendt til å danne en løsning eller en suspensjon. Inklusjonskomplekset kan påføres ved en beleggingsprosess, slik som slurrybelegging, spraying, en dyppeprosess, elektrostatisk avsetting, typehjulsanvendelse, graveringstrykking, blekkskriving og lignende. I en foretrukket utførelsesform forberedes en løsning, suspensjon eller slurry omfattende syklodekstrinet og smaksstoffet påføres som et belegg til valgte overflater av valgte komponenter hos den elektrisk oppvarmede sigaretten. Eksempler på prosesser kan anvendes til å påføre inklusjonskomplekset i den elektrisk oppvarmede sigaretten er beskrevet i US 5 144 964, som herved innlemmes i sin helhet ved referanse. The inclusion complex may be made by forming an aqueous solution of beta-cyclodextrin and the flavoring agent. The inclusion complex can be recovered from the solution in powder form. However, the solution may be applied directly to one or more selected locations of one or more components of the electrically heated cigarette by any suitable process. The inclusion complex powder can alternatively be used to form a solution or a suspension. The inclusion complex can be applied by a coating process, such as slurry coating, spraying, a dipping process, electrostatic deposition, type wheel application, gravure printing, ink printing and the like. In a preferred embodiment, a solution, suspension or slurry comprising the cyclodextrin is prepared and the flavoring is applied as a coating to selected surfaces of selected components of the electrically heated cigarette. Examples of processes that can be used to apply the inclusion complex to the electrically heated cigarette are described in US 5,144,964, which is hereby incorporated in its entirety by reference.
Den elektrisk oppvarmede sigaretten 23 omfatter fortrinnsvis en mengde av inklusjonskomplekset som tilveiebringer en ønsket mengde smaksstoff i sigaretten. I en foretrukket utførelsesform omfatter den elektrisk oppvarmede sigaretten, basert på vekten til overomslutningen eller matten, opptil omkring 15 %, og mer foretrukket mindre enn omkring 8 %, av inklusjonskomplekset. F.eks. dersom inklusjonskomplekset er påført matten, når vekten til matten fortrinnsvis er vektbasis for mengden inklusjonskompleks påført matten. Dersom inklusjonskomplekset er påført matten og overomslutningen, så er den totale vekten til matten og overomslutningen fortrinnsvis vektbasis for mengden inklusjonskompleks påført matten og overomslutningen. Vektprosenten av inklusjonskomplekset som påføres matten og/eller overomslutningen være den samme eller ulik. I en foretrukket utførelsesform omfatter sigaretten fra omkring 1 mg til omkring 50 mg smaksstoff. The electrically heated cigarette 23 preferably comprises an amount of the inclusion complex which provides a desired amount of flavoring in the cigarette. In a preferred embodiment, the electrically heated cigarette, based on the weight of the overwrap or mat, comprises up to about 15%, and more preferably less than about 8%, of the inclusion complex. E.g. if the inclusion complex is applied to the mat, when the weight of the mat is preferably the weight basis for the amount of inclusion complex applied to the mat. If the inclusion complex is applied to the mat and the overwrap, then the total weight of the mat and the overwrap is preferably the weight basis for the amount of inclusion complex applied to the mat and the overwrap. The percentage by weight of the inclusion complex that is applied to the mat and/or overwrap be the same or different. In a preferred embodiment, the cigarette comprises from about 1 mg to about 50 mg of flavoring.
I en foretrukket utførelsesform er inklusjonskomplekset anbrakt på minst ett sted i den elektrisk oppvarmede sigaretten 23 som når minst minimumstemperaturen hvorved smaksstoffet frigis fra inklusjonskomplekset i sigaretten under røyking. F.eks. kan inklusjonskomplekset være anbrakt på inneromslutningen 84, matten 66 og/eller overomslutningen 71. In a preferred embodiment, the inclusion complex is placed in at least one place in the electrically heated cigarette 23 which reaches at least the minimum temperature whereby the flavoring substance is released from the inclusion complex in the cigarette during smoking. E.g. the inclusion complex can be placed on the inner enclosure 84, the mat 66 and/or the upper enclosure 71.
I en annen foretrukket utførelsesform omfatter den elektrisk oppvarmede sigaretten to eller flere ulike typer smaksfrigivende tilsetningsstoffer, f.eks. en kule og en film i tillegg til et inklusjonskompleks, hvor hvert smaksfrigivende tilsetningsstoff har en ulik smaksfrigivende temperatur. De ulike smaksfrigivende tilsetningsstoffene kan innlemmes på to eller flere steder i den samme elektrisk oppvarmede sigaretten som når ulike temperaturer under røyking for å tilveiebringe ytterligere styrt frigivelse av smaksstoffet under røyking. In another preferred embodiment, the electrically heated cigarette comprises two or more different types of flavor-releasing additives, e.g. a sphere and a film in addition to an inclusion complex, where each flavor-releasing additive has a different flavor-releasing temperature. The various flavor releasing additives can be incorporated at two or more locations in the same electrically heated cigarette that reaches different temperatures during smoking to provide additional controlled release of the flavor during smoking.
Fig. 4 og 5 illustrerer et elektrisk røykesystem hvor foretrukne utførelsesformer av den elektrisk oppvarmede sigaretten kan anvendes. Imidlertid skal det forstås at foretrukne utførelsesformer av den elektrisk oppvarmede sigaretten kan anvendes i elektriske røykesystemer med andre konstruksjoner, slik som de som har ulike elektrisk drevne tennerkonstruksjoner. Det elektriske røykesystemet 21 omfatter en elektrisk oppvarmet sigarett 23 og en gjenbrukbar tenner 25. Sigaretten 23 er konstruert til å bli stukket inn i og fjernet fra en sigarettmottaker 27, som er åpen ved en fremre endedel 29 hos tenneren 25. Med én gang sigaretten 23 er stukket inn, anvendes røykesystemet 21 på en lignende måte som en mer tradisjonell sigarett, men uten tenning eller ulming av sigaretten 23. Sigaretten 23 fjernes etter røyking. Figures 4 and 5 illustrate an electric smoking system where preferred embodiments of the electrically heated cigarette can be used. However, it should be understood that preferred embodiments of the electrically heated cigarette may be used in electric smoking systems of other designs, such as those having various electrically operated igniter designs. The electric smoking system 21 comprises an electrically heated cigarette 23 and a reusable lighter 25. The cigarette 23 is designed to be inserted into and removed from a cigarette receiver 27, which is open at a front end portion 29 of the lighter 25. At once the cigarette 23 is inserted, the smoking system 21 is used in a similar way to a more traditional cigarette, but without lighting or smoldering the cigarette 23. The cigarette 23 is removed after smoking.
Fortrinnsvis tilveiebringer hver sigarett 23 en total på omkring 8 trekk (trekksykluser) pr. røyk. Imidlertid kan sigaretten 23 konstrueres til å tilveiebringe en mindre eller større total mengde tilgjengelige trekk. Preferably, each cigarette 23 provides a total of about 8 puffs (puff cycles) per smoke. However, the cigarette 23 may be designed to provide a smaller or larger total amount of available puffs.
Tenneren 25 omfatter et hus 31 med henholdsvis fremre og bakre husdeler 33 og 35. En kraftkilde 35a, slik som ett eller flere batterier, er anbrakt i den bakre husdelen 35 og leverer energi til en tennerfikstur 39. Tennerfiksturen 39 omfatter et flertall elektrisk resistive, oppvarmingselementer 37 (fig. 6). Oppvarmingselementene 37 er arrangert i den fremre husdelen 33 til å glidende motta sigaretten 23. Et stopp 183 anbrakt i tennerfiksturen 39 definerer en terminalende av sigrettmottakeren 27 (fig. 2). The lighter 25 comprises a housing 31 with respectively front and rear housing parts 33 and 35. A power source 35a, such as one or more batteries, is placed in the rear housing part 35 and supplies energy to a lighter fixture 39. The lighter fixture 39 comprises a plurality of electrically resistive, heating elements 37 (fig. 6). The heating elements 37 are arranged in the front housing part 33 to slidably receive the cigarette 23. A stop 183 located in the lighter fixture 39 defines a terminal end of the cigarette receiver 27 (Fig. 2).
Styringskretssystemet 41 i den fremre husdelen 33 etablerer valgfritt elektrisk forbindelse mellom kraftkilden 35a og ett eller flere av oppvarmingselementene 37 under hver trekksyklus. The control circuit system 41 in the front housing part 33 optionally establishes an electrical connection between the power source 35a and one or more of the heating elements 37 during each pulling cycle.
Den bakre husdelen 35 hos huset 31 er konstruert til å bli åpnet og lukket for å gjøre det lettere å erstatte kraftkilden 35a. Fortrinnsvis er den fremre husdelen 33 fjernbart festet til den bakre husdelen 35 ved mekanisk inngrep. The rear housing part 35 of the housing 31 is designed to be opened and closed to facilitate replacement of the power source 35a. Preferably, the front housing part 33 is removably attached to the rear housing part 35 by mechanical engagement.
Det henvises nå til fig. 5, hvor styringskretssystemet 41 i en foretrukket utførelsesform aktiveres ved en trekkaktivert sensor 45, som er følsom for enten endringer i trykk eller endring i hastigheten til luftstrømmen som oppstår ved initiering av et trekk på sigaretten 23 av en røyker. Den trekkaktiverte sensoren 45 er fortrinnsvis anbrakt i den fremre husdelen 33 hos tenneren 25 og kommuniserer med et rom på innsiden av tennerfiksturen 39 via en port 45a som strekker seg gjennom en sideveggdel 187 hos tennerfiksturen 39. Med én gang sensoren 45 aktiveres, retter styringskretssystemet 41 elektrisk strøm til et passende oppvarmingselement 37. Reference is now made to fig. 5, where the control circuit system 41 in a preferred embodiment is activated by a draw activated sensor 45, which is sensitive to either changes in pressure or change in the velocity of the air flow that occurs when a smoker initiates a draw on the cigarette 23. The pull-activated sensor 45 is preferably placed in the front housing part 33 of the igniter 25 and communicates with a space on the inside of the igniter fixture 39 via a port 45a which extends through a side wall portion 187 of the igniter fixture 39. As soon as the sensor 45 is activated, the control circuit system 41 electrical current to a suitable heating element 37.
I en foretrukket utførelsesform er en indikator 51 tilveiebrakt på et sted langs det utvendige av tenneren 25 for å visuelt indikere antallet gjenværende trekk for sigaretten 23, eller annen valgt informasjon. Indikatoren 51 omfatter fortrinnsvis et vindu av flytende krystall. I en foretrukket utførelsesform viser indikatoren 51 et valgt bilde når en sigarettdetektor 57 detekterer nærværet av en sigarett i tennerfiksturen 39. Detektoren 57 kan omfatte ethvert arrangement som føler nærværet av en elektrisk oppvarmet sigarett. F.eks. kan detektoren omfatte en induktiv spole 1102 nærliggende sigarettmottakeren 27 hos varmefiksturen 39 og elektriske ledere 1104 som forbinder spolen 1102 med en oscillatorkrets hos styringskretssystemet 41. I et slikt tilfelle kan sigaretten 23 omfatte et metallisk element (ikke vist), som kan påvirke induktansen til spoleviklingen 1102 slik at når en passende sigarett 23 stikkes inn i mottakeren 27, genererer detektoren 57 et signal til kretssystemet 41 som indikerer at sigaretten er tilstede. Styringskretssystemet 41 tilveiebringer et signal til indikatoren 51. Når sigaretten 23 er fjernet fra tenneren 25 detekterer ikke sigar ettdetektor en 57 lenger nærvær av en sigarett 23 og indikatoren 51 slås av. In a preferred embodiment, an indicator 51 is provided at a location along the exterior of the lighter 25 to visually indicate the number of draws remaining for the cigarette 23, or other selected information. The indicator 51 preferably comprises a liquid crystal window. In a preferred embodiment, the indicator 51 displays a selected image when a cigarette detector 57 detects the presence of a cigarette in the lighter fixture 39. The detector 57 may comprise any arrangement that senses the presence of an electrically heated cigarette. E.g. the detector may comprise an inductive coil 1102 near the cigarette receiver 27 of the heating fixture 39 and electrical conductors 1104 connecting the coil 1102 to an oscillator circuit of the control circuit system 41. In such a case, the cigarette 23 may comprise a metallic element (not shown), which may affect the inductance of the coil winding 1102 so that when a suitable cigarette 23 is inserted into the receiver 27, the detector 57 generates a signal to the circuit system 41 indicating that the cigarette is present. The control circuit system 41 provides a signal to the indicator 51. When the cigarette 23 is removed from the lighter 25, the cigar detector 57 no longer detects the presence of a cigarette 23 and the indicator 51 is switched off.
Varmefiksturen 39 støtter en innstukket sigarett 23 i et fast forhold til oppvarmingselementene 37 slik at oppvarmingselementene 37 er posisjonert langs sigaretten 23 ved tilnærmet samme sted for hver nylig innstukne sigarett 23. I en foretrukket utførelsesform omfatter varmefiksturen 39 åtte innbyrdes parallelle oppvarmingselementer 37, som er anbrakt konsentrisk omkring symmetriaksen til sigarettmottakeren 27. Stedet hvor hvert oppvarmingselement 37 berører en helt innstukket sigarett 23 henvises deretter til oppvarmingsfottrykket eller forkullingssone 42. The heating fixture 39 supports an inserted cigarette 23 in a fixed relationship to the heating elements 37 so that the heating elements 37 are positioned along the cigarette 23 at approximately the same place for each newly inserted cigarette 23. In a preferred embodiment, the heating fixture 39 comprises eight mutually parallel heating elements 37, which are placed concentrically around the axis of symmetry of the cigarette receiver 27. The place where each heating element 37 touches a fully inserted cigarette 23 is then referred to the heating footprint or charring zone 42.
Som vist i fig. 6 omfatter oppvarmingselementene 37 fortrinnsvis hver minst første og andre buktede, forlengede organer 53a og 53b som støtter opp til en tipp 54. Varmedelene 53a, 53b og 54 danner et oppvarmingsblad 120. Tippen 54 er nærliggende åpningen 55 hos sigarettmottakeren 27. De motsatte endene 56a og 56b hos hvert oppvarmingselement 57 er elektrisk koblet til motsatte poler hos kraftkilden 35a som valgfritt etablert av kontrollsystemet 41. En elektrisk bane gjennom hvert oppvarmingselement 37 er etablert, henholdsvis gjennom en terminalpinne 104, en kobling 121 mellom pinnen 104 og en fri endedel 56a hos ett av de buktede organene 53a, gjennom minst én del av tippen 54 til det andre buktede organet 53b og dettes endedel 56b. En koblingsring 110 tilveiebringer fortrinnsvis en felles elektrisk tilkobling til hver av endedelene 56b. I en foretrukket utførelsesform er ringen 110 koblet til den positive terminalen av kraftkilden 35a gjennom en kobling 123 mellom ringen 110 og en pinne 105. As shown in fig. 6, the heating elements 37 preferably each comprise at least first and second curved, elongated members 53a and 53b which support up to a tip 54. The heating parts 53a, 53b and 54 form a heating blade 120. The tip 54 is close to the opening 55 of the cigarette receiver 27. The opposite ends 56a and 56b of each heating element 57 are electrically connected to opposite poles of the power source 35a as optionally established by the control system 41. An electrical path through each heating element 37 is established, respectively through a terminal pin 104, a connection 121 between the pin 104 and a free end part 56a of one of the meandering members 53a, through at least one part of the tip 54 to the other meandering member 53b and its end part 56b. A coupling ring 110 preferably provides a common electrical connection to each of the end parts 56b. In a preferred embodiment, the ring 110 is connected to the positive terminal of the power source 35a through a connection 123 between the ring 110 and a pin 105.
Fortrinnsvis er oppvarmingselementet 37 individuelt forsynt med energi fra kraftkilden 35a under kontroll av styringskretssystemet 41 for å oppvarme sigaretten 23 fortrinnsvis åtte ganger ved steder med mellomrom omkring periferien av sigaretten 23. Oppvarmingen gir åtte trekk fra sigaretten 23, noe som vanligvis oppnås ved røyking av en mer tradisjonell sigarett. Det kan være foretrukket å aktivere mer enn ett oppvarmingselement samtidig for ett eller flere eller alle trekkene. Preferably, the heating element 37 is individually supplied with energy from the power source 35a under the control of the control circuit system 41 to heat the cigarette 23 preferably eight times at spaced locations around the periphery of the cigarette 23. The heating provides eight puffs from the cigarette 23, which is usually achieved by smoking a more traditional cigarette. It may be preferred to activate more than one heating element at the same time for one or more or all of the moves.
Varmefiksturen 39 omfatter en luftinnløpsport 1200 hvorigjennom luft trekkes inn i tenneren. Et trykkfall induseres ved at luften entrer tenneren slik at trekksensoren 45 er i stand til å gjenkjenne initieringen av et trekk. Området til trykkfallet som induseres velges slik at det er innenfor området til trykkfallet som kan detekteres av trykksensoren 45. The heating fixture 39 comprises an air inlet port 1200 through which air is drawn into the lighter. A pressure drop is induced by the air entering the igniter so that the draft sensor 45 is able to recognize the initiation of a draft. The range of the pressure drop that is induced is chosen so that it is within the range of the pressure drop that can be detected by the pressure sensor 45.
Lengden til tobakkspluggen 80 og dennes relative posisjon langs tobbakkstangen 60 er fortrinnsvis valgt basert på konstruksjonen og plasseringen av oppvarmingselementene 37 hos det elektriske røyksystemet 21. Når en sigarett 23 posisjoneres skikkelig mot et stopp 182 (fig. 2) innenfor tenneren hos det elektriske røykesystemet, er en del av hvert oppvarmingselement i kontakt med tobakkstangen 60. Dette området av kontakt henvises til som et oppvarmingsfottrykk 95, som er det området av tobakkstangen 60 hvor oppvarmingselementene 37 er forventet å nå en temperatur som er høy nok til å tillate røyking av sigaretten uten forbrenning av sigarettpapiret, matten eller tobakken. Oppvarmingsfottrykket 95 kan konsistent anbringes langs tobakkstangen 60 ved den samme forhåndsbestemte avstanden 96 fra den frie enden 78 av tobakkstangen 60 for hver sigarett 23 som stikkes helt inn i tenneren 25. The length of the tobacco plug 80 and its relative position along the tobacco rod 60 is preferably selected based on the construction and location of the heating elements 37 of the electric smoking system 21. When a cigarette 23 is properly positioned against a stop 182 (Fig. 2) within the lighter of the electric smoking system, is part of each heating element in contact with the tobacco stick 60. This area of contact is referred to as a heating foot print 95, which is the area of the tobacco stick 60 where the heating elements 37 are expected to reach a temperature high enough to allow smoking of the cigarette without burning of the cigarette paper, mat or tobacco. The heating foot pressure 95 can be consistently applied along the tobacco rod 60 at the same predetermined distance 96 from the free end 78 of the tobacco rod 60 for each cigarette 23 that is fully inserted into the lighter 25.
Fortrinnsvis er lengden til tobakkspluggen 80 hos sigaretten 23, lengden til oppvarmingsfottrykket 95, og avstanden mellom oppvarmingsfottrykket 95 og stoppet 182 valgt slik at oppvarmingsfottrykket 95 strekker seg forbi tobbakkspluggen 80 og legger seg ovenpå en del av tomrommet 91 med en avstand 98. Avstanden 98 henvises også til som "oppvarmingsromoverlapp" 98. Avstanden som det gjenværende av oppvarmingsfottrykket 95 legger seg ovenpå tobakkspluggen 80 henvises til som "oppvarmingsfylloverlapp" 99 (eng: heater-filler overlap). Preferably, the length of the tobacco plug 80 of the cigarette 23, the length of the heating foot pressure 95, and the distance between the heating foot pressure 95 and the stop 182 are chosen so that the heating foot pressure 95 extends past the tobacco plug 80 and rests on top of part of the void 91 by a distance 98. The distance 98 is referred to also referred to as "heating space overlap" 98. The distance that the remainder of the heating foot pressure 95 settles on top of the tobacco plug 80 is referred to as "heating filler overlap" 99 (eng: heater-filler overlap).
Lengden til tomrommet 91, tobakkspluggen 80 og fordelingen av perforeringshullene 263 kan justeres for å justere røykekarakteristikkene til sigaretten 23, omfattende justeringer i smak, trekk og levering. Mønsteret av hullene 263, lengden i tomrommet 90 og størrelsen på oppvarmingsfylloverlappet 99 (og oppvarmingstomromoverlapp 98) kan også manipuleres til å justere den øyeblikkelige nærheten av responsen for å fremme konsistensen i leveransen. The length of the void 91, the tobacco plug 80 and the distribution of the perforation holes 263 can be adjusted to adjust the smoking characteristics of the cigarette 23, including adjustments in taste, draw and delivery. The pattern of the holes 263, the length of the void 90, and the size of the heating fill overlap 99 (and heating void overlap 98) can also be manipulated to adjust the instantaneous proximity of the response to promote consistency in delivery.
Elektrisk oppvarmede sigaretter i samsvar med foretrukne utførelsesformer kan tilveiebringe fordeler. Ved innlemming av én eller flere tilsatte smaksstoffer, spesielt volatile smaksstoffer, kan smaksstoffet/smaksstoffene holdes igjen i sigaretten helt til den røykes. I tillegg temperaturfrigis smaksstoffet fortrinnsvis på en styrt måte under røyking, og tilveiebringer dermed røykeren med en økt subjektiv karakteristikk for sigaretten. Ettersom smaksstoffet kan holdes tilbake i det smaksfrigivende tilsetningsstoffet helt til sigaretten røykes, minimeres deaktivering av sorbenten i sigaretten fortrinnsvis. Følgelig opprettholder sorbenten sin evne til å fjerne valgte gassfasede bestanddeler fra hovedstrømsrøyken. Electrically heated cigarettes in accordance with preferred embodiments may provide benefits. By incorporating one or more added flavorings, especially volatile flavorings, the flavoring(s) can be retained in the cigarette until it is smoked. In addition, the flavoring is preferably released in a controlled manner during smoking, and thus provides the smoker with an increased subjective characteristic of the cigarette. As the flavoring can be retained in the flavor-releasing additive until the cigarette is smoked, deactivation of the sorbent in the cigarette is preferably minimized. Consequently, the sorbent maintains its ability to remove selected gas-phase constituents from the mainstream smoke.
Oppfinnelsen kan utføres i andre spesifikke former uten å forlate oppfinnelsestanken. Mens den foreliggende oppfinnelsen er illustrert og beskrevet i samsvar med ulike foretrukne utførelsesformer, skal det gjenkjennes at variasjoner og endringer kan gjøres uten å forlate rammen av oppfinnelsen som fremsatt i de vedlagte patentkravene. The invention can be carried out in other specific forms without abandoning the inventive idea. While the present invention has been illustrated and described in accordance with various preferred embodiments, it should be recognized that variations and changes may be made without departing from the scope of the invention as set forth in the appended claims.
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- 2003-10-30 CN CNB2003801024395A patent/CN1317986C/en not_active Expired - Lifetime
- 2003-10-30 CA CA2502171A patent/CA2502171C/en not_active Expired - Fee Related
- 2003-10-30 MX MXPA05004683A patent/MXPA05004683A/en active IP Right Grant
- 2003-10-30 AU AU2003284199A patent/AU2003284199B2/en not_active Ceased
- 2003-10-30 KR KR1020057007597A patent/KR101072668B1/en active IP Right Grant
- 2003-10-30 BR BRPI0315829-2B1A patent/BR0315829B1/en active IP Right Grant
- 2003-10-30 UA UAA200504030A patent/UA90430C2/en unknown
- 2003-10-30 HU HUE03776589A patent/HUE026909T2/en unknown
- 2003-10-30 ES ES03776589.8T patent/ES2573479T3/en not_active Expired - Lifetime
- 2003-10-30 US US10/695,760 patent/US20040129280A1/en not_active Abandoned
- 2003-10-30 EA EA200500746A patent/EA006569B1/en not_active IP Right Cessation
- 2003-10-30 EP EP03776589.8A patent/EP1555898B1/en not_active Expired - Lifetime
- 2003-10-30 DK DK03776589.8T patent/DK1555898T3/en active
- 2003-10-30 PL PL374939A patent/PL203915B1/en unknown
- 2003-10-30 WO PCT/US2003/034290 patent/WO2004041007A2/en active Application Filing
- 2003-10-30 JP JP2004550175A patent/JP4889218B2/en not_active Expired - Lifetime
-
2005
- 2005-04-06 ZA ZA200502781A patent/ZA200502781B/en unknown
- 2005-04-29 MA MA28248A patent/MA27484A1/en unknown
- 2005-05-01 IL IL168310A patent/IL168310A/en active IP Right Grant
- 2005-05-30 NO NO20052600A patent/NO338062B1/en not_active IP Right Cessation
- 2005-07-26 EG EGNA2005000167 patent/EG23930A/en active
- 2005-09-15 HK HK05108074.7A patent/HK1076013A1/en not_active IP Right Cessation
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