TWI654943B - Smoke product with a single radial separation of thermally conductive elements - Google Patents

Smoke product with a single radial separation of thermally conductive elements Download PDF

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TWI654943B
TWI654943B TW103127780A TW103127780A TWI654943B TW I654943 B TWI654943 B TW I654943B TW 103127780 A TW103127780 A TW 103127780A TW 103127780 A TW103127780 A TW 103127780A TW I654943 B TWI654943 B TW I654943B
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heat source
aerosol
combustible heat
forming substrate
smoking article
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TW103127780A
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TW201521608A (en
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歐樂格 米羅諾
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菲利浦莫里斯製品股份有限公司
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/10Chemical features of tobacco products or tobacco substitutes
    • A24B15/16Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
    • A24B15/165Chemical features of tobacco products or tobacco substitutes of tobacco substitutes comprising as heat source a carbon fuel or an oxidized or thermally degraded carbonaceous fuel, e.g. carbohydrates, cellulosic material
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00Smokers' requisites not otherwise provided for
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/22Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)

Abstract

一種煙品(2、42)包含:一具有相對之前表面(6)和後表面(8)的可燃熱源(4);一在該可燃熱源(4)後表面(8)下游的氣溶膠形成基材(10);及一單一導熱元件(36),該單一導熱元件覆蓋該可燃熱源(4)的一後部分和該氣溶膠形成基材(10)的至少一前部分。該單一導熱元件(36)包含一層或多層導熱材料,而該一層或多層導熱材料係與該可燃熱源(4)和該氣溶膠形成基材(10)徑向分離。該可燃熱源(4)係一非直通可燃熱源,或該可燃熱源(4)係一直通可燃熱源,且該煙品(42)進一步包含一在該直通可燃熱源和一個或多個氣流通道(44)之間的實質上不可燃不透氣屏障(46),該一個或多個氣流通道從該直通可燃熱源前表面(6)延伸至後表面(8)。該單一導熱元件包含一由導熱材料構成,在該煙品的外部上可見的外層。 A smoking article (2, 42) includes: a combustible heat source (4) having a front surface (6) and a rear surface (8) opposite to the front surface (6); and an aerosol-forming base downstream of the combustible heat source (4) rear surface (8) Material (10); and a single thermally conductive element (36) covering a rear portion of the combustible heat source (4) and at least a front portion of the aerosol-forming substrate (10). The single thermally conductive element (36) includes one or more thermally conductive materials, and the one or more thermally conductive materials are radially separated from the combustible heat source (4) and the aerosol-forming substrate (10). The combustible heat source (4) is a non-through combustible heat source, or the combustible heat source (4) is a combustible heat source, and the cigarette (42) further includes a through combustible heat source and one or more airflow channels (44). ) Between the substantially non-combustible and air-impermeable barrier (46), the one or more airflow channels extend from the front surface (6) to the rear surface (8) of the through combustible heat source. The single heat-conducting element includes an outer layer made of a heat-conducting material and visible on the exterior of the smoking article.

Description

具有單一徑向分離之導熱元件的煙品 Cigarette with a single radially separated thermally conductive element

本發明關於一種煙品,該煙品包含一具有相對之前表面和後表面的可燃熱源,一在該可燃熱源後表面下游的氣溶膠形成基材,及一單一導熱元件,該單一導熱元件覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分。 The invention relates to a smoking article, which comprises a flammable heat source having a front surface and a rear surface opposite to each other, an aerosol-forming substrate downstream of the rear surface of the flammable heat source, and a single thermally conductive element covering the single thermally conductive element. A rear portion of the combustible heat source and the aerosol form at least a front portion of the substrate.

許多是煙草加熱而不是燃燒的煙品已經在本技術領域中提出。這類「加熱」煙品的目的之一,係減少在傳統香煙中由煙草燃燒和熱裂降解(pyrolytic degradation)所產生該類型的已知有害煙霧成分。在一種已知的加熱煙品類型中,一氣溶膠係藉由從一可燃熱源熱傳遞到一氣溶膠形成基材來產生。該氣溶膠形成基材可位於該可燃熱源內、下游、或圍繞該可燃熱源。在抽煙期間,揮發性化合物由該可燃熱源熱傳遞而從該氣溶膠形成基材釋放,並夾帶在通過該煙品被吸入的空氣中。當該釋放的化合物冷卻,它們冷凝形成一種由使用者吸入的氣溶膠。通常情況下,空氣被吸入這種已知的加熱煙品,穿過一個或多個設置為穿過該可燃熱源的氣 流通道,且藉由強制熱對流和熱傳導,從該可燃熱源至該氣溶膠形成基材發生熱傳遞。 Many tobacco products that are heated by tobacco rather than burned have been proposed in the art. One of the purposes of such "heated" cigarettes is to reduce the known harmful smoke constituents of this type produced in conventional cigarettes by tobacco combustion and pyrolytic degradation. In one known type of heated smoking article, an aerosol is produced by transferring heat from a combustible heat source to an aerosol-forming substrate. The aerosol-forming substrate may be located within, downstream from, or surrounding the combustible heat source. During smoking, volatile compounds are released from the aerosol-forming substrate by heat transfer from the combustible heat source, and are entrained in the air sucked through the cigarette. As the released compounds cool, they condense to form an aerosol inhaled by the user. Normally, air is drawn into this known heated smoking article through one or more gases arranged to pass through the combustible heat source Flow channels, and through forced thermal convection and heat conduction, heat transfer occurs from the combustible heat source to the aerosol-forming substrate.

例如,WO-A2-2009/022232揭露的一煙品包含一可燃熱源,一在該可燃熱源下游的氣溶膠形成基材,及一導熱元件,該導熱元件圍繞該可燃熱源後部分和該氣溶膠形成基材相鄰前部分,並與它們直接接觸。 For example, a smoking article disclosed in WO-A2-2009 / 022232 includes a combustible heat source, an aerosol-forming substrate downstream of the combustible heat source, and a thermally conductive element surrounding the rear part of the combustible heat source and the aerosol. Adjacent front parts of the substrate are formed and in direct contact with them.

在WO-A2-2009/022232煙品中的導熱元件藉由熱傳導,傳遞在該可燃熱源燃燒期間產生的熱到該氣溶膠形成基材。在煙草加熱而不是燃燒的煙品中,在該氣溶膠形成基材中達到的溫度對產生一感覺可接受氣溶膠的能力上具有顯著影響。通常需要保持該氣溶膠形成基材的溫度在一特定範圍內,以優化輸送到使用者的該氣溶膠。在某些情況下,從一圍繞和直接接觸該可燃熱源和該氣溶膠形成基材之導熱元件外表面的輻射熱損失,可引起該可燃熱源和該氣溶膠形成基材之溫度下降到一所需要的範圍之外,從而影響該煙品的性能。如果該氣溶膠形成基材溫度降得過低,例如,它可產生輸送至使用者氣溶膠之一致性和總量的不利影響。 The heat-conducting element in WO-A2-2009 / 022232 smoke product transfers heat generated during the combustion of the combustible heat source to the aerosol-forming substrate by heat conduction. In tobacco products that are heated rather than burned, the temperature reached in the aerosol-forming substrate has a significant effect on the ability to produce a sensory acceptable aerosol. It is often necessary to maintain the temperature of the aerosol-forming substrate within a specific range to optimize the aerosol delivery to the user. In some cases, radiant heat loss from an outer surface of a thermally conductive element surrounding and directly contacting the combustible heat source and the aerosol-forming substrate can cause the temperature of the combustible heat source and the aerosol-forming substrate to drop to a desired level. Outside the range, which affects the performance of the cigarette. If the temperature of the aerosol-forming substrate is reduced too low, for example, it can have an adverse effect on the consistency and total amount of aerosol delivered to the user.

EP-A1-2 550 879揭露的一煙品包括:一多層管件9,其包含至少一金屬層和一紙層;一碳熱源4,其配置在該管件9的一末端部分,至少部分直接緊密接觸該管件9的內表面和一煙味釋放源8,該煙味釋放源配置在鄰接該碳熱源4的該管件9中;及一保持器部分14,其保持該碳熱源4直接接觸該末端部分,並保持該碳熱源4緊靠該末端部分。 A smoking article disclosed in EP-A1-2 550 879 includes: a multi-layer pipe 9 including at least a metal layer and a paper layer; a carbon heat source 4 arranged at an end portion of the pipe 9 at least partially directly The inner surface of the pipe member 9 is closely contacted with a smoke odor emitting source 8 which is arranged in the pipe member 9 adjacent to the carbon heat source 4; and a holder portion 14 which keeps the carbon heat source 4 directly in contact with the The end portion, and the carbon heat source 4 is kept close to the end portion.

在第1圖所示的實施例中,該不可燃包裹材料9係藉由接合三層複合薄片16到二層複合薄片15的外側來形成。該三層複合薄片16的部分從該二層複合薄片15突出以形成該保持器部分14。如第2圖所示,該二層複合薄片15包含一內鋁層17和一外紙層18,而該三層複合薄片16包含一內紙層18、一中間鋁層17、和一外紙層18。該不可燃捲紙9的最內層係該二層複合薄片15的鋁層17,和該不可燃捲紙9的最外層係該三層複合薄片16的外紙層18。 In the embodiment shown in FIG. 1, the non-combustible wrapping material 9 is formed by joining the three-layer composite sheet 16 to the outside of the two-layer composite sheet 15. Portions of the three-layer composite sheet 16 protrude from the two-layer composite sheet 15 to form the holder portion 14. As shown in FIG. 2, the two-layer composite sheet 15 includes an inner aluminum layer 17 and an outer paper layer 18, and the three-layer composite sheet 16 includes an inner paper layer 18, an intermediate aluminum layer 17, and an outer paper. Layer 18. The innermost layer of the non-combustible roll paper 9 is the aluminum layer 17 of the two-layer composite sheet 15, and the outermost layer of the non-combustible roll paper 9 is the outer paper layer 18 of the three-layer composite sheet 16.

在一些加熱的煙品中,除了經由一導熱元件的熱傳導傳遞外,提供了從一可燃熱源到該氣溶膠形成基材的強制熱對流傳遞。例如,在一些已知加熱的煙品中,一個或多個氣流通道沿該可燃熱源設置,以提供該氣溶膠形成基材的強制熱對流加熱。在這類煙品中,該氣溶膠形成基材藉由熱傳導和強制熱對流加熱的組合來加熱。 In some heated cigarettes, in addition to heat transfer through a thermally conductive element, forced heat convection transfer is provided from a combustible heat source to the aerosol-forming substrate. For example, in some known heated cigarettes, one or more airflow channels are provided along the combustible heat source to provide forced thermal convective heating of the aerosol-forming substrate. In such smoking articles, the aerosol-forming substrate is heated by a combination of thermal conduction and forced thermal convection heating.

例如,WO-A2-2009/022232揭露提供至少一個穿過該可燃熱源的縱向氣流通道,以提供一控制量之該氣溶膠形成基材的強制熱對流加熱。 For example, WO-A2-2009 / 022232 discloses providing at least one longitudinal airflow passage through the combustible heat source to provide a controlled amount of forced convective heating of the aerosol-forming substrate.

在主要藉由強制熱對流,來發生從該可燃熱源到該氣溶膠形成基材之熱傳遞的已知加熱煙品中,該強制熱對流傳遞及由此在該氣溶膠形成基材中的溫度,依據使用者的抽吸行為可以有很大的不同。結果,由這類已知加熱煙品產生的主流氣溶膠之成分及由此之感官特性,對於使用者之抽吸法可能不利地高度敏感。 In known heated smoking articles where heat transfer from the combustible heat source to the aerosol-forming substrate occurs primarily by forced thermal convection, the forced thermal convection transfer and thus the temperature in the aerosol-forming substrate Depending on the user's smoking behavior, it can vary greatly. As a result, the constituents of mainstream aerosols and their sensory properties produced by such known heated tobacco products may be disadvantageously highly sensitive to the smoking method of the user.

特別地,在包含一個或多個沿該可燃熱源之氣流通道的已知加熱煙品中,在使用者抽吸期間,使穿過該一個或多個氣流通道之吸入空氣和該可燃熱源之間的直接接觸,造成該可燃熱源的燃燒激活。因此,強烈的抽吸法可引發足夠高的強制熱對流傳遞,造成該氣溶膠形成基材溫度的尖峰,不利地導致氣溶膠形成基材的熱分解和甚至可能局部燃燒。如本文所用,該術語「尖峰」用來描述該氣溶膠形成基材溫度的短暫增高。結果,隨著使用者採取的特定抽吸法,由這類已知加熱煙品在主流氣溶膠中產生不需要之熱分解和燃燒副產品的程度,也不利地非常顯著。 In particular, in a known heated smoking article comprising one or more airflow channels along the flammable heat source, the suction air passing through the one or more airflow channels and the flammable heat source are caused between the user and the user during a puff. The direct contact causes the combustion activation of the combustible heat source. Therefore, a strong suction method can cause a sufficiently high forced thermal convection transfer, causing a spike in the temperature of the aerosol-forming substrate, which adversely leads to thermal decomposition and possibly even local combustion of the aerosol-forming substrate. As used herein, the term "spike" is used to describe a transient increase in the temperature of the aerosol-forming substrate. As a result, the degree of unwanted thermal decomposition and combustion of by-products in mainstream aerosols from such known heated smoking articles is also disadvantageously very significant with the particular smoking method adopted by the user.

在其它加熱煙品中,沒有設置氣流通道穿過該可燃熱源。在這類加熱煙品中,該氣溶膠形成基材的加熱主要係經由一導熱元件,藉由熱傳導傳遞取得。在該氣溶膠形成基材之加熱主要係藉由熱傳導傳遞的加熱煙品中,該氣溶膠形成基材的溫度可變得隨該導熱元件的溫度改變而更敏感。這意味著,在這類加熱煙品中,由於輻射熱損失造成一圍繞和直接接觸該可燃熱源和該氣溶膠形成基材之導熱元件的任何冷卻,比起在該氣溶膠形成基材也藉由強制熱對流傳遞加熱的加熱煙品中,在該氣溶膠的產生上可能具有更大影響。 In other heated smoking articles, no airflow passage is provided through the combustible heat source. In this type of heated smoking article, the heating of the aerosol-forming substrate is mainly obtained through a thermally conductive element through heat conduction transfer. In the heating of the aerosol-forming substrate mainly by heating conduction through heat conduction, the temperature of the aerosol-forming substrate may become more sensitive as the temperature of the thermally conductive element changes. This means that in this type of heated smoking article, any cooling of the thermally conductive element surrounding and directly contacting the combustible heat source and the aerosol-forming substrate due to radiant heat loss is also reduced by comparison with the aerosol-forming substrate. The heating aerosol produced by forced convection heating may have a greater effect on the generation of the aerosol.

期望能提供一種加熱煙品,該加熱煙品包含一具有相對之前和後表面的可燃熱源,及一在該可燃熱源後表面下游的氣溶膠形成基材,該氣溶膠形成基材提供改良的抽煙性能。特別地,期望能提供一加熱煙品, 其中改良該氣溶膠形成基材加熱的控制,以在抽煙期間,幫助維持該氣溶膠形成基材溫度在所需要的溫度範圍內。 It is desirable to provide a heated smoking article that includes a flammable heat source having opposed front and rear surfaces, and an aerosol-forming substrate downstream of the rear surface of the flammable heat source, the aerosol-forming substrate providing improved smoking performance. In particular, it is desirable to provide a heated smoking article, The heating control of the aerosol-forming substrate is improved to help maintain the temperature of the aerosol-forming substrate within the required temperature range during smoking.

根據本發明提供一種煙品,該煙品包含:一具有相對之前和後表面的可燃熱源;一在該可燃熱源後表面下游的氣溶膠形成基材;及一單一導熱元件,該單一導熱元件覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分。該單一導熱元件包含一層或多層導熱材料,且該一層或多層導熱材料係與該可燃熱源和該氣溶膠形成基材徑向分離。該可燃熱源係一非直通可燃熱源,或該可燃熱源係一直通可燃熱源,且該煙品進一步包含一在該直通可燃熱源和一個或多個氣流通道之間的實質上不可燃不透氣屏障。該單一導熱元件包含一由導熱材料構成,在該煙品的外部上可見的外層。 According to the present invention, there is provided a smoking article, the smoking article comprising: a combustible heat source having a front surface and a rear surface opposite to each other; an aerosol-forming substrate downstream of the rear surface of the combustible heat source; and a single thermally conductive element that covers A rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate. The single thermally conductive element includes one or more thermally conductive materials, and the one or more thermally conductive materials are radially separated from the combustible heat source and the aerosol-forming substrate. The combustible heat source is a non-through combustible heat source, or the combustible heat source is a combustible heat source, and the cigarette further includes a substantially non-combustible, air-impermeable barrier between the through combustible heat source and one or more airflow channels. The single heat-conducting element includes an outer layer made of a heat-conducting material and visible on the exterior of the smoking article.

如本文所用,該術語「遠端」、「上游」和「前」,及「近端」、「下游」和「後」,是用來描述於在該使用煙品期間,該煙品組件或組件一部分相對使用者在該煙品上吸氣方向的相對位置。根據本發明的煙品包含一近端,在使用時,一氣溶膠穿過該近端,離開該煙品,以輸送到使用者。該煙品的近端也可稱為該嘴端。在使用時,一使用者在該煙品的近端上吸氣,以吸入該煙品產生的氣溶膠。 As used herein, the terms "distal," "upstream," and "front", and "proximal," "downstream," and "rear" are used to describe the smoking components or The relative position of a part of the component relative to the user's direction of inhalation on the smoking article. The smoking article according to the present invention includes a proximal end, and in use, an aerosol passes through the proximal end and leaves the smoking article for delivery to a user. The proximal end of the smoking article may also be referred to as the mouth end. In use, a user inhales on the proximal end of the smoking article to inhale the aerosol generated by the smoking article.

該可燃熱源位於或靠近該遠端。該嘴端係在該遠端的下游。該近端也可稱為該煙品的下游端,而該 遠端可也可稱為該煙品的上游端。根據本發明煙品的組件或組件一部分可基於它們在該煙品近端和遠端之間的相對位置,描述為彼此的上游或下游。 The combustible heat source is located at or near the distal end. The mouth end is tied downstream of the distal end. The proximal end may also be referred to as the downstream end of the smoking article, and the The distal end may also be referred to as the upstream end of the smoking article. The components or parts of components of a smoking article according to the present invention may be described as upstream or downstream of each other based on their relative positions between the proximal and distal ends of the smoking article.

該可燃熱源的前表面係在該可燃熱源的上游端。該可燃熱源的上游端係離該煙品近端最遠之該可燃熱源末端。該可燃熱源後表面係在該可燃熱源的下游端。該可燃熱源的下游端係最接近該煙品近端之該可燃熱源末端。 The front surface of the combustible heat source is at the upstream end of the combustible heat source. The upstream end of the combustible heat source is the end of the combustible heat source furthest from the proximal end of the cigarette. The rear surface of the combustible heat source is tied to the downstream end of the combustible heat source. The downstream end of the combustible heat source is the end of the combustible heat source closest to the proximal end of the cigarette.

如本文所用,該術語「長度」係用來描述該煙品縱向方向的最大尺寸。即,在該煙品近端和相對的遠端之間方向的最大尺寸。 As used herein, the term "length" is used to describe the largest dimension in the longitudinal direction of the smoking article. That is, the largest dimension in the direction between the proximal end and the opposite distal end of the smoking article.

如本文所用,該術語「氣溶膠形成基材」係用來描述在加熱揮發性化合物時,一有釋放能力的基材,該基材可以形成一氣溶膠。從根據本發明煙品之氣溶膠形成基材產生的該氣溶膠可以是可見或不可見,且可包含蒸氣(例如,在氣體狀態中的物質微粒,該等物質在室溫下通常為液體或固體)以及氣體和冷凝蒸氣的液滴。 As used herein, the term "aerosol-forming substrate" is used to describe a substrate capable of releasing when heating a volatile compound, which substrate can form an aerosol. The aerosol generated from the aerosol-forming substrate of the smoking article according to the present invention may be visible or invisible, and may contain vapor (e.g., particulates of substances in a gaseous state, which are usually liquid or Solids) and droplets of gas and condensed vapor.

如本文所用,該術語「徑向分離」係用來表示該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材二者在徑向方向分離,使得在該單一導熱元件的一層或多層導熱材料與該可燃熱源或該氣溶膠形成基材之間沒有直接接觸。 As used herein, the term "radial separation" is used to indicate that one or more layers of the thermally conductive material of the single thermally conductive element are separated from the combustible heat source and the aerosol-forming substrate in a radial direction such that the single thermally conductive element There is no direct contact between one or more layers of thermally conductive material and the combustible heat source or the aerosol-forming substrate.

如本文所用,該術語「徑向」用於描述在該煙品近端和相對遠端之間方向的垂直方向。 As used herein, the term "radial" is used to describe the vertical direction in the direction between the proximal and opposite distal ends of the smoking article.

如本文所用,該術語「直接接觸」係用於指兩種組件之間的接觸沒有任何中間材料,使得該等組件的表面彼此接觸。 As used herein, the term "direct contact" is used to refer to the contact between two components without any intermediate material such that the surfaces of the components are in contact with each other.

該氣溶膠形成基材可以是一插栓或區段形式,包含一在加熱揮發性化合物時有釋放能力的材料。該基材藉由一捲紙包圍,可以形成一氣溶膠。在一氣溶膠形成基材為這種插栓或區段形式時,包含該捲紙的整個插栓或區段被認為是該氣溶膠形成基材。 The aerosol-forming substrate may be in the form of a plug or a segment, and contains a material capable of releasing when heating a volatile compound. The substrate is surrounded by a roll of paper to form an aerosol. When an aerosol-forming substrate is in the form of such a plug or segment, the entire plug or segment including the roll paper is considered to be the aerosol-forming substrate.

在這類實施例中,該單一導熱元件的一層或多層導熱材料與該氣溶膠形成基材的捲紙徑向分離。 In such embodiments, one or more thermally conductive materials of the single thermally conductive element are radially separated from the roll paper of the aerosol-forming substrate.

根據本發明之煙品包含一覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分之單一導熱元件。該單一導熱元件包含一層或多層導熱材料,且該一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材徑向分離。 The smoking article according to the present invention includes a single thermally conductive element covering a rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate. The single thermally conductive element includes one or more thermally conductive materials, and the one or more thermally conductive materials are radially separated from the combustible heat source and the aerosol-forming substrate.

根據本發明之煙品不包含任何額外地在該單一導熱元件底層或覆蓋該單一導熱元件的導熱元件。特別地,根據本發明之煙品不包含任何圍繞和直接接觸該可燃熱源和該氣溶膠形成基材之一或二者的導熱元件。 The smoking article according to the present invention does not include any heat conducting element which is additionally on the bottom layer of or covers the single heat conducting element. In particular, the smoking article according to the present invention does not include any thermally conductive elements surrounding and in direct contact with one or both of the combustible heat source and the aerosol-forming substrate.

根據本發明之煙品可包含一非直通可燃熱源或一直通可燃熱源。 The smoking article according to the present invention may include a non-through combustible heat source or a through-combustible heat source.

如本文所用,該術語「非直通」係用來描述一可燃熱源,其中沒有氣流通道從該可燃熱源前表面延伸至後表面。 As used herein, the term "non-through" is used to describe a combustible heat source in which no air flow passage extends from the front surface to the rear surface of the combustible heat source.

在使用時,通過根據本發明的包含一非直通可燃熱源之煙品的供使用者吸入的空氣,沒有通過任何沿該非直通可燃熱源的氣流通道。在根據本發明之包含一非直通可燃熱源的煙品中,該氣溶膠形成基材的加熱主要藉由熱傳導來發生,而藉由強制熱對流對該氣溶膠形成基材的加熱係最小化或減少。 In use, the air for inhalation by the user through the smoking article containing a non-through combustible heat source according to the present invention does not pass through any airflow path along the non-through combustible heat source. In a smoking article comprising a non-through combustible heat source according to the present invention, heating of the aerosol-forming substrate occurs mainly by heat conduction, and heating of the aerosol-forming substrate by forced thermal convection is minimized or cut back.

如本文所用,該術語「氣流通道」係用來描述一沿一可燃熱源長度延伸的通道,用於使用者吸入的空氣可穿過該通道被吸入下游。 As used herein, the term "airflow channel" is used to describe a channel extending along the length of a flammable heat source, through which air for user inhalation can be drawn into downstream.

如本文所用,該術語「直通」係用來描述一可燃熱源,其中有一個或多個從該可燃熱源前表面延伸至後表面的氣流通道。 As used herein, the term "through" is used to describe a flammable heat source with one or more airflow channels extending from the front surface to the rear surface of the flammable heat source.

在使用時,用於使用者吸入而穿過根據本發明的包含一非直通可燃熱源之煙品的吸入空氣,通過一個或多個沿該直通可燃熱源的氣流通道。在根據本發明之包含一直通可燃熱源的煙品中,該氣溶膠形成基材的加熱藉由熱傳導和強制熱對流來發生。 In use, the inhaled air for the user to inhale through the smoking article containing a non-through combustible heat source according to the present invention passes through one or more airflow channels along the through combustible heat source. In a smoking article comprising a continuously combustible heat source according to the present invention, the heating of the aerosol-forming substrate occurs by thermal conduction and forced thermal convection.

根據本發明之包含一直通可燃熱源的煙品,進一步包含一在該直通可燃熱源和該一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道之間的實質上不可燃不透氣屏障。 According to the present invention, a smoking article including a through-combustible heat source, further comprising a substantially non-combustible gas-impermeable between the through-combustible heat source and the one or more airflow channels extending from a front surface to a rear surface of the through-combustion heat source barrier.

如本文所用,該術語「不可燃」係用來描述一屏障,在該直通可燃熱源燃燒和和點燃期間,該直通可燃熱源達到的溫度下,該屏障實質上為不可燃。 As used herein, the term "non-combustible" is used to describe a barrier that is substantially non-combustible at the temperature reached by the through-combustible heat source during combustion and ignition of the through-combustible heat source.

在根據本發明之煙品包含一非直通可燃熱源時,缺少任何穿過該非直通可燃熱源的氣流通道,在使用者抽吸期間,有利地實質上防止或抑制該非直通可燃熱源的燃燒激活。 When the smoking article according to the present invention contains a non-through combustible heat source, it lacks any airflow passage through the non-through combustible heat source, and advantageously prevents or inhibits the combustion activation of the non-through combustible heat source during the user's puff.

同樣,在根據本發明之煙品包含一直通可燃熱源時,在該直通可燃熱源和該一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道之間含有一實質上不可燃不透氣屏障,在使用者抽吸期間,有利地實質上防止或抑制該直通可燃熱源的燃燒激活。 Similarly, when the smoking article according to the present invention contains a continuously combustible heat source, a substantially non-combustible incombustible is contained between the straight combustible heat source and the one or more airflow channels extending from the front surface to the rear surface of the through combustible heat source The breathable barrier advantageously prevents or inhibits the combustion activation of the through combustible heat source during the user's puff.

在使用者抽吸期間,防止或抑制該可燃熱源的燃燒激活,有利地實質上防止或抑制根據本發明之煙品的該氣溶膠形成基材溫度的尖峰。 Preventing or inhibiting the combustion activation of the combustible heat source during the user's puffing advantageously advantageously prevents or inhibits the aerosol of the smoking article according to the invention from forming a spike in the temperature of the substrate.

藉由防止或抑制該可燃熱源的燃燒激活,並且也防止或抑制在該氣溶膠形成基材中增高的溫度超過,在強烈抽吸法下,根據本發明之煙品的該氣溶膠形成基材之燃燒或熱分解可有利地避免。另外,使用者抽吸法對於在根據本發明之煙品的主流氣溶膠成分上的影響可有利地最小化或減少。 By preventing or inhibiting the combustion activation of the combustible heat source, and also preventing or inhibiting the temperature increase in the aerosol-forming substrate from being exceeded, the aerosol-forming substrate of the smoking article according to the present invention is subjected to a strong suction method Its burning or thermal decomposition can be advantageously avoided. In addition, the effect of the user smoking method on the mainstream aerosol composition of the smoking article according to the present invention can be advantageously minimized or reduced.

該單一導熱元件覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分。 The single thermally conductive element covers a rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate.

該單一導熱元件的一層或多層導熱材料係與該可燃熱源和該氣溶膠形成基材徑向分離。這限制從該可燃熱源熱傳導傳遞到該單一導熱元件和從該單一導熱元件熱傳導傳遞到該氣溶膠形成基材。在使用時,這有利地幫助維持在根據本發明之煙品的該氣溶膠形成基材 中獲得的溫度,低於該氣溶膠形成基材可能發生燃燒或熱分解的溫度。 One or more layers of the single thermally conductive element are radially separated from the combustible heat source and the aerosol-forming substrate. This limits heat transfer from the combustible heat source to the single thermally conductive element and heat transfer from the single thermally conductive element to the aerosol-forming substrate. In use, this advantageously helps to maintain the aerosol-forming substrate in the smoking article according to the invention The temperature obtained in is lower than the temperature at which the aerosol-forming substrate may undergo combustion or thermal decomposition.

較佳地,由從該可燃熱源熱傳導到該單一導熱元件的熱傳遞係實質上減少。這導致在根據本發明之煙品的該單一導熱元件,比起該導熱元件圍繞和直接接觸該可燃熱源一後部分和該氣溶膠形成基材至少一前部分之已知加熱煙品的該導熱元件,保持一較低的溫度。 Preferably, the heat transfer system that conducts heat from the combustible heat source to the single thermally conductive element is substantially reduced. This results in the single thermally conductive element of the smoking article according to the present invention, the thermal conduction of the known heated smoking article surrounding and directly contacting a rear part of the flammable heat source and at least a front part of the aerosol-forming substrate compared to the thermally conductive element. Component, keep a lower temperature.

在該導熱元件圍繞和直接接觸該可燃熱源一後部分和該氣溶膠形成基材至少一前部分之加熱煙品中,經由該導熱元件藉熱傳導傳遞產生的熱消耗,顯著使該可燃熱源該後部分的溫度降低。這會縮短該可燃熱源的燃燒壽命,並可導致不可接受的氣溶膠輸送。 In the heated smoking article surrounding and directly contacting a rear part of the combustible heat source and at least a front part of the aerosol-forming substrate, heat consumption generated by heat conduction transfer through the heat conduction element significantly makes the combustible heat source Part of the temperature decreases. This shortens the combustion life of the combustible heat source and can lead to unacceptable aerosol delivery.

根據本發明之煙品,在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的徑向分離,有利地減少經由該導熱元件藉熱傳導傳遞產生的熱消耗。 According to the smoking article of the present invention, the radial separation between one or more layers of the heat-conducting material of the single heat-conducting element and the combustible heat source and the aerosol-forming substrate advantageously reduces the heat consumption generated by the heat-conducting element through heat-conducting transfer. .

該單一導熱元件有利地減少從該可燃熱源的熱損失。在該煙品抽煙期間,當藉由該可燃熱源產生熱時,該單一導熱元件的一層或多層導熱材料增高溫度。該單一導熱元件之一層或多層導熱材料的溫度增高,減少在該可燃熱源和該煙品之覆蓋組件之間的溫度差,使得從該可燃熱源的熱損失可以減少。 The single thermally conductive element advantageously reduces heat loss from the combustible heat source. During the smoking of the smoking article, when heat is generated by the combustible heat source, one or more layers of the thermally conductive material of the single thermally conductive element increase the temperature. The temperature of one or more layers of the single thermally conductive element increases, reducing the temperature difference between the combustible heat source and the covered component of the smoking article, so that the heat loss from the combustible heat source can be reduced.

藉由從該可燃熱源減少熱損失,該單一導熱元件有利地幫助維持該氣溶膠形成基材的溫度在一所需的溫度範圍內。這改善從該氣溶膠形成基材產生的氣溶膠。 By reducing heat loss from the flammable heat source, the single thermally conductive element advantageously helps maintain the temperature of the aerosol-forming substrate within a desired temperature range. This improves the aerosol generated from the aerosol-forming substrate.

該單一導熱元件的一層或多層導熱材料沿該煙品傳導熱。這改善從該可燃熱源熱傳導傳遞到該氣溶膠形成基材的效率,並因此改善該氣溶膠形成基材的加熱。透過含有該單一導熱元件獲得在熱傳導傳遞上的改善,特別有利於根據本發明之包含一非直通可燃熱源而其中實質上沒有強制熱對流傳遞的煙品。 One or more thermally conductive materials of the single thermally conductive element conduct heat along the smoking article. This improves the efficiency of heat transfer from the combustible heat source to the aerosol-forming substrate, and therefore improves the heating of the aerosol-forming substrate. The improvement in heat transfer obtained by containing the single thermally conductive element is particularly beneficial to cigarettes containing a non-through combustible heat source without substantial forced convective transfer in accordance with the present invention.

在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的徑向分離,較佳地取得穿過含有一個或多個在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的中間層材料。該一個或多個中間層材料可設置在該單一導熱元件覆蓋該可燃熱源和該氣溶膠形成基材的該整個區域。替代地,該一個或多個中間層材料可只設置部分或此區域的一部分。在一些實施例中,該一個或多個中間層材料可在上游方向和下游方向之一或二者延伸超過該單一導熱元件的一層或多層導熱材料。 Radial separation between one or more layers of thermally conductive material of the single thermally conductive element and the combustible heat source and the aerosol-forming substrate is preferably achieved through one or more layers containing one or more of the single thermally conductive elements to conduct thermal conduction. A material and an intermediate layer material between the combustible heat source and the aerosol-forming substrate. The one or more intermediate layer materials may be disposed on the single thermally conductive element covering the entire area of the combustible heat source and the aerosol-forming substrate. Alternatively, the one or more intermediate layer materials may be provided only in part or in a part of this area. In some embodiments, the one or more intermediate layer materials may extend over one or more layers of the single thermally conductive element in one or both of the upstream and downstream directions.

較佳地,該單一導熱元件的一層或多層導熱材料藉由一層或多層隔熱材料,係與該可燃熱源和該氣溶膠形成基材徑向分離。合適的隔熱材料包含,但不限於,紙、陶瓷、和金屬氧化物。 Preferably, one or more thermally conductive materials of the single thermally conductive element are radially separated from the combustible heat source and the aerosol-forming substrate through one or more thermally insulating materials. Suitable insulation materials include, but are not limited to, paper, ceramics, and metal oxides.

例如,在本發明某些較佳實施例中,被該單一導熱元件覆蓋的該可燃熱源後部分和該氣溶膠形成基材至少一前部分都被一紙捲所覆蓋,該紙捲沿該煙品長度至少一部分包圍該煙品。在這類實施例中,該紙捲使該單一導熱元件係與該可燃熱源和該氣溶膠形成基材徑 向分離,使得在該單一導熱元件與該可燃熱源或該氣溶膠形成基材之間沒有直接接觸。 For example, in some preferred embodiments of the present invention, the rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate covered by the single thermally conductive element are both covered by a paper roll, the paper roll being along the smoke The length of the product surrounds the smoking product at least in part. In such embodiments, the paper roll forms a single thermally conductive element with the combustible heat source and the aerosol to form a substrate diameter. The separation is such that there is no direct contact between the single thermally conductive element and the combustible heat source or the aerosol-forming substrate.

該單一導熱元件包含一設置在該煙品外側上的外層導熱材料,使得該單一導熱元件的外層導熱材料在該煙品外部上可見。 The single thermally conductive element includes an outer thermally conductive material disposed on the outside of the smoking article, so that the outer thermally conductive material of the single thermally conductive element is visible on the exterior of the smoking article.

在某些實施例中,藉由一沿該煙品全部或只有一部分延伸的捲紙,使該單一導熱元件的一層或多層導熱材料從該可燃熱源和該氣溶膠形成基材徑向分離。在這類實施例中,該捲紙係包裹圍繞該煙品,蓋過該可燃熱源和該氣溶膠形成基材,且該單一導熱元件係設置覆蓋該捲紙的至少一部分。 In some embodiments, one or more layers of the thermally conductive material of the single thermally conductive element are radially separated from the combustible heat source and the aerosol-forming substrate by a rolled paper extending along all or only a portion of the smoking article. In such embodiments, the roll paper wraps around the cigarette, covers the combustible heat source and the aerosol-forming substrate, and the single thermally conductive element is disposed to cover at least a portion of the roll paper.

該單一導熱元件覆蓋該煙品之一捲紙的設置可提供相對於根據本發明之煙品外觀的好處,特別在抽煙期間和之後。在某些情況下,當該捲紙從該可燃熱源遇熱時,可觀察到在該可燃熱源區域中該捲紙的一些變色。揮發性化合物從該氣溶膠形成基材遷移到圍繞該氣溶膠形成基材和在該氣溶膠形成基材下游之該捲紙的結果,可造成該捲紙另外的變色。在某些實施例中,根據本發明之煙品的該單一導熱元件可設置在圍繞該可燃熱源至少一後部分和該氣溶膠形成基材至少一前部分的該捲紙上,使該捲紙的變色被覆蓋,且不再可見或較少見,在某些實施例中,該單一導熱元件可圍繞該氣溶膠形成基材的全長延伸。在某些最佳實施例中,該單一導熱元件可超過該氣溶膠形成基材下游延伸。因此,在抽煙期間,可以保留該煙品的初始外觀。 The arrangement of the single thermally conductive element covering one of the cigarettes of the smoking article may provide benefits over the appearance of the smoking article according to the present invention, particularly during and after smoking. In some cases, when the roll paper is exposed to heat from the combustible heat source, some discoloration of the roll paper can be observed in the area of the combustible heat source. The migration of volatile compounds from the aerosol-forming substrate to the roll paper surrounding the aerosol-forming substrate and downstream of the aerosol-forming substrate can cause additional discoloration of the roll paper. In some embodiments, the single thermally conductive element of the smoking article according to the present invention may be disposed on the roll paper surrounding at least a rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate, so that the The discoloration is covered and is no longer visible or rare, and in certain embodiments, the single thermally conductive element may extend around the full length of the aerosol-forming substrate. In certain preferred embodiments, the single thermally conductive element may extend downstream beyond the aerosol-forming substrate. Therefore, the original appearance of the smoking article can be retained during smoking.

替代或另外在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的一層或多層隔熱材料,該單一導熱元件的至少一部分可藉由一空氣間隙係與該可燃熱源和該氣溶膠形成基材徑向分離。一空氣間隙可設置穿過含有一個或多個在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的隔離元件,以在該單一導熱元件與該可燃熱源和該氣溶膠形成基材之間維持一所界定間隔。該一個或多個隔離元件可以是,例如,一個或多個徑向包裹圍繞該可燃熱源和該氣溶膠形成基材的紙條。 Instead of or in addition to one or more layers of thermally conductive material between the single thermally conductive element and one or more thermally conductive materials between the flammable heat source and the aerosol-forming substrate, at least a part of the single thermally conductive element may be connected to the air gap The combustible heat source is radially separated from the aerosol-forming substrate. An air gap may be provided to pass through one or more insulation elements containing one or more thermally conductive materials between the single thermally conductive element and the combustible heat source and the aerosol-forming substrate, so that the single thermally conductive element and the combustible heat source A defined distance is maintained from the aerosol-forming substrate. The one or more isolation elements may be, for example, one or more paper strips radially surrounding the combustible heat source and the aerosol-forming substrate.

較佳地,該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材徑向分離至少20微米,更佳地至少50微米。在某些實施例中,該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材徑向分離至少75微米或以上,或至少100微米以上。 Preferably, one or more layers of the thermally conductive material of the single thermally conductive element are radially separated from the combustible heat source and the aerosol-forming substrate by at least 20 microns, more preferably at least 50 microns. In some embodiments, one or more layers of thermally conductive material of the single thermally conductive element are radially separated from the combustible heat source and the aerosol-forming substrate by at least 75 microns or more, or at least 100 microns or more.

在一層或多層隔熱材料設置在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間時,如上所述,在該單一導熱元件的一層或多層導熱材料與該可燃熱源和該氣溶膠形成基材之間的徑向分離由該一層或多層隔熱材料的厚度決定。 When one or more layers of heat-insulating material are disposed between the one or more layers of heat-conducting material of the single heat-conducting element and the combustible heat source and the aerosol-forming substrate, as described above, the one or more layers of heat-conducting material of the single heat-conducting element and The radial separation between the combustible heat source and the aerosol-forming substrate is determined by the thickness of the one or more layers of thermal insulation material.

該單一導熱元件的一層或多層導熱材料可包含具有適當熱傳導率的任何合適導熱材料或材料組合。 The one or more layers of thermally conductive material of the single thermally conductive element may comprise any suitable thermally conductive material or combination of materials with suitable thermal conductivity.

較佳地,在使用修訂瞬時平面熱源(Modified Transient Plane Source,MTPS)方法測量時,在23℃和 50%相對濕度下,該單一導熱元件的一層或多層導熱材料包含具有一整體導熱率在大約10瓦每公尺克爾文(W/(M‧K))和大約500瓦每公尺克爾文(W/(M‧K))之間的導熱材料,更佳地在大約15瓦每公尺克爾文(W/(M‧K))和大約400瓦每公尺克爾文(W/(M‧K))之間。合適的導熱材料包含,但不限於:金屬箔捲紙如,例如,鋁箔捲紙、鋼捲紙、鐵箔捲紙、和銅箔捲紙;及金屬合金箔捲紙。 Preferably, when measured using the Modified Transient Plane Source (MTPS) method, At 50% relative humidity, one or more layers of thermally conductive material of the single thermally conductive element include a thermal conductivity of approximately 10 watts per meter in kelvin (W / (M‧K)) and approximately 500 watts per meter in kelvin ( W / (M‧K)), preferably between about 15 watts per meter in kelvin (W / (M‧K)) and about 400 watts per meter in kelvin (W / (M‧ K)). Suitable thermally conductive materials include, but are not limited to: metal foil roll paper such as, for example, aluminum foil roll paper, steel roll paper, iron foil roll paper, and copper foil roll paper; and metal alloy foil roll paper.

在某些最佳實施例中,該單一導熱元件包含一層或多層鋁。 In some preferred embodiments, the single thermally conductive element comprises one or more layers of aluminum.

較佳地,該單一導熱元件的一層或多層導熱材料包含一熱反射材料,如鋁或鋼。在這類實施例中,在使用時,該單一導熱元件有利地反射從該可燃熱源和該氣溶膠形成基材的熱輻射轉回到該可燃熱源和該氣溶膠形成基材。 Preferably, the one or more thermally conductive materials of the single thermally conductive element include a heat reflective material, such as aluminum or steel. In such embodiments, in use, the single thermally conductive element advantageously reflects heat radiation from the combustible heat source and the aerosol-forming substrate back to the combustible heat source and the aerosol-forming substrate.

如本文所用,該術語「熱反射材料」是指一具有相對較高熱反射率和相對較低熱發射的材料,使得相較於該材料的熱發射,從該材料表面反射較大部分的入射輻射。較佳地,該熱反射材料反射超過50%的入射輻射,更佳地超過70%的入射輻射,和最佳地超過75%的入射輻射。 As used herein, the term "thermally reflective material" refers to a material that has a relatively high thermal reflectivity and a relatively low thermal emission such that a larger portion of the incident radiation is reflected from the surface of the material compared to the thermal emission of the material . Preferably, the heat reflecting material reflects more than 50% of incident radiation, more preferably more than 70% of incident radiation, and most preferably more than 75% of incident radiation.

在這類實施例中,該單一導熱元件的相對較高熱反射率和相對較低熱發射可減少從該可燃熱源和該氣溶膠形成基材的熱損失。 In such embodiments, the relatively high thermal reflectivity and relatively low thermal emission of the single thermally conductive element can reduce heat loss from the combustible heat source and the aerosol-forming substrate.

該單一導熱元件的一層或多層導熱材料的熱反射可藉由設置具有一閃亮內表面之該單一導熱元件的一層或多層導熱材料來改善,其中該內表面係面向該可燃熱源和該反射氣溶膠形成基材的表面。 The heat reflection of one or more thermally conductive materials of the single thermally conductive element can be improved by disposing one or more thermally conductive materials of the single thermally conductive element with a shiny inner surface, wherein the inner surface faces the combustible heat source and the reflective gas. The sol forms the surface of the substrate.

該單一導熱元件可以是一單一層的導熱材料形式。替代地,該單一導熱元件可以是一多層或貼合材料形式,該多層或貼合材料包含至少一層導熱材料,並結合一層或多層其它的導熱層或非導熱層。在這類實施例中,該至少一層的導熱材料可包含以上所列的任何導熱材料。 The single thermally conductive element may be in the form of a single layer of thermally conductive material. Alternatively, the single heat-conducting element may be in the form of a multilayer or a laminating material, the multilayer or a laminating material comprising at least one layer of a thermally conductive material, and combining one or more other thermally or non-thermally conductive layers. In such embodiments, the at least one layer of thermally conductive material may include any of the thermally conductive materials listed above.

在某些最佳實施例中,該單一導熱元件可以是一包含至少一層導熱材料和至少一層隔熱材料的貼合材料形式。在這類實施例中,面向該可燃熱源和該氣溶膠形成基材的該單一導熱元件內層可以是一隔熱材料層。在這種方式中,該隔熱材料內層提供了在該單一導熱元件的至少一層與該可燃熱源和該氣溶膠形成基材導熱材料之間所需要的徑向分離。 In some preferred embodiments, the single heat-conducting element may be in the form of a bonding material including at least one layer of thermally conductive material and at least one layer of thermally insulating material. In such embodiments, the inner layer of the single thermally conductive element facing the combustible heat source and the aerosol-forming substrate may be a layer of thermal insulation material. In this manner, the inner layer of thermal insulation material provides the required radial separation between at least one layer of the single thermally conductive element and the combustible heat source and the aerosol-forming substrate thermally conductive material.

在某些最佳實施例中,該單一導熱元件包含一單一層的導熱材料。 In some preferred embodiments, the single thermally conductive element comprises a single layer of thermally conductive material.

在某些最佳實施例中,該單一導熱元件係一包含單一層導熱材料和一層或多層隔熱材料的貼合材料。在某些特別佳地實施例中,該單一導熱元件係一包含一單一層導熱材料和一單一層隔熱材料的貼合材料。較佳地,該單一導熱元件係一包含一單一導熱材料外層和一單一隔熱材內層料的貼合材料。 In some preferred embodiments, the single thermally conductive element is a bonding material comprising a single layer of thermally conductive material and one or more layers of thermal insulation material. In some particularly preferred embodiments, the single thermally conductive element is a bonding material including a single layer of thermally conductive material and a single layer of thermal insulation material. Preferably, the single heat-conducting element is a bonding material including an outer layer of a single heat-conducting material and an inner layer of a single heat-insulating material.

特別適合用於形成該單一導熱元件的貼合材料範例係一包含一鋁外層和一紙內層的雙層貼合材料。 An example of a bonding material particularly suitable for forming the single thermally conductive element is a two-layer bonding material including an aluminum outer layer and a paper inner layer.

在根據本發明之該煙品的生產期間,使用一包含一貼合材料的單一導熱元件是格外有利,因為該至少一個隔熱層可提供額外的強度和剛性。這使得該貼合材料更容易加工,減少該至少一導熱層坍塌或斷裂風險,該導熱層可以是比較薄和脆弱。 During the production of the smoking article according to the invention, it is particularly advantageous to use a single thermally conductive element comprising a conformable material, since the at least one thermal insulation layer can provide additional strength and rigidity. This makes the bonding material easier to process and reduces the risk of collapse or fracture of the at least one thermally conductive layer, which can be relatively thin and fragile.

較佳地該單一導熱元件厚度在大約5微米和大約100微米之間,更佳地在大約5微米和大約80微米之間。 Preferably the thickness of the single thermally conductive element is between about 5 microns and about 100 microns, and more preferably between about 5 microns and about 80 microns.

較佳地該單一導熱元件包含一層或多層具有厚度在大約2微米和大約50微米之間的導熱材料,更佳地在大約4微米和大約30微米之間。 Preferably the single thermally conductive element comprises one or more layers of thermally conductive material having a thickness between about 2 microns and about 50 microns, more preferably between about 4 microns and about 30 microns.

在某些實施例中,該單一導熱元件可包含具有厚度大約20微米的鋁箔。 In some embodiments, the single thermally conductive element may include an aluminum foil having a thickness of about 20 microns.

在某些最佳實施例中,該單一導熱元件可包含一包含一具有厚度在大約5微米和大約6微米之間之鋁外層和一紙內層的貼合材料。 In some preferred embodiments, the single thermally conductive element may include a bonding material including an outer layer of aluminum having a thickness between about 5 microns and about 6 microns and an inner layer of paper.

如上所述,根據本發明之煙品的該單一導熱元件覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分。 As described above, the single thermally conductive element of the smoking article according to the present invention covers a rear portion of the combustible heat source and at least a front portion of the aerosol-forming substrate.

為了控制在抽煙期間該氣溶膠形成基材的加熱,可調整該單一導熱元件相對於該可燃熱源和該氣溶膠形成基材的位置和範圍。特別地,為了調整該煙品的氣溶膠輸送輪廓,可在上游方向和下游方向調整該單一 導熱元件相對於該可燃熱源和該氣溶膠形成基材的範圍。 To control the heating of the aerosol-forming substrate during smoking, the position and range of the single thermally conductive element relative to the combustible heat source and the aerosol-forming substrate can be adjusted. In particular, in order to adjust the aerosol delivery profile of the smoking article, the unit can be adjusted in the upstream and downstream directions. The range of the thermally conductive element relative to the combustible heat source and the aerosol-forming substrate.

該單一導熱元件可延伸圍繞該煙品圓周的全部或一部分。較佳地,該單一導熱元件形成一沿該煙品部分長度圍繞該煙品的連續套管。 The single thermally conductive element may extend around all or part of the circumference of the smoking article. Preferably, the single thermally conductive element forms a continuous sleeve surrounding the smoking article along the length of the smoking article.

較佳地,由該單一導熱元件覆蓋的該可燃熱源後部分之長度在大約2毫米和大約8毫米之間,更佳地在大約3毫米和大約5毫米之間。 Preferably, the length of the rear portion of the combustible heat source covered by the single thermally conductive element is between about 2 mm and about 8 mm, more preferably between about 3 mm and about 5 mm.

較佳地,沒有由該單一導熱元件覆蓋的該可燃熱源前部分之長度在大約4毫米和大約15毫米之間,更佳地在大約5毫米和大約8毫米之間。 Preferably, the length of the front portion of the combustible heat source that is not covered by the single thermally conductive element is between about 4 mm and about 15 mm, more preferably between about 5 mm and about 8 mm.

在某些實施例中,該單一導熱元件覆蓋該氣溶膠形成基材的全長。在這類實施例中,該單一導熱元件的下游端可與該氣溶膠形成基材的下游端對準。替代地,該單一導熱元件可在下游方向延伸超過該氣溶膠形成基材。 In some embodiments, the single thermally conductive element covers the entire length of the aerosol-forming substrate. In such embodiments, the downstream end of the single thermally conductive element may be aligned with the downstream end of the aerosol-forming substrate. Alternatively, the single thermally conductive element may extend beyond the aerosol-forming substrate in a downstream direction.

在其他實施例中,該單一導熱元件只覆蓋該氣溶膠形成基材的一前部分。在這類實施例中,該氣溶膠形成基材在下游方向延伸超過該單一導熱元件。 In other embodiments, the single thermally conductive element covers only a front portion of the aerosol-forming substrate. In such embodiments, the aerosol-forming substrate extends in a downstream direction beyond the single thermally conductive element.

在該單一導熱元件只覆蓋該氣溶膠形成基材之一前部分的實施例中,該氣溶膠形成基材可在下游方向延伸超過該單一導熱元件至少大約3毫米。例如,該氣溶膠形成基材可在下游方向延伸超過該單一導熱元件在大約3毫米和大約10毫米之間。替代地,該氣溶膠形成基材可在下游方向延伸超過該單一導熱元件小於3毫米。 In embodiments where the single thermally conductive element covers only one front portion of the aerosol-forming substrate, the aerosol-forming substrate may extend downstream of the single thermally conductive element by at least about 3 millimeters. For example, the aerosol-forming substrate may extend downstream of the single thermally conductive element between about 3 mm and about 10 mm. Alternatively, the aerosol-forming substrate may extend less than 3 mm beyond the single thermally conductive element in the downstream direction.

在該單一導熱元件只覆蓋該氣溶膠形成基材之一前部分的實施例中,由該單一導熱元件覆蓋的該氣溶膠形成基材前部分之長度可以在大約1毫米和大約10毫米之間。例如,由該單一導熱元件覆蓋的該氣溶膠形成基材前部分之長度可以在大約2毫米和大約8毫米之間,或長度在大約2毫米和大約6毫米之間。 In embodiments where the single thermally conductive element covers only one front portion of the aerosol-forming substrate, the length of the front portion of the aerosol-forming substrate covered by the single thermally conductive element may be between about 1 mm and about 10 mm . For example, the length of the front portion of the aerosol-forming substrate covered by the single thermally conductive element may be between about 2 millimeters and about 8 millimeters, or between about 2 millimeters and about 6 millimeters in length.

根據本發明之煙品可包含一非直通可燃熱源。 The smoking article according to the present invention may include a non-through combustible heat source.

已知在該加熱煙品的可燃熱源中包含添加劑,以改善該可燃熱源的點燃和燃燒性能。然而,該含有點燃和燃燒的添加劑可能引起熱分解和反應物,這在使用加熱煙品期間可能不利於吸入的空氣進入穿過這類已知的加熱煙品。 It is known to include additives in the combustible heat source for heating the smoking article to improve the ignition and combustion performance of the combustible heat source. However, the additives containing ignition and combustion may cause thermal decomposition and reactants, which may be detrimental to inhaled air entering through such known heated smoking articles during the use of heated smoking articles.

在使用根據本發明之煙品期間,在從吸入的空氣進入穿過該煙品而使一非直通可燃熱源點燃和燃燒時,含有一非直通可燃熱源可有利地實質上防止或抑制燃燒和熱分解形成的產物和其他物質。在該非直通可燃熱源包含一個或多個添加劑,以幫助該非直通可燃熱源點燃或燃燒時,這點特別有利。 During the use of a smoking article according to the present invention, the inclusion of a non-through combustible heat source can advantageously substantially prevent or suppress combustion and heat when an indirect flammable heat source is ignited and burned by the inhaled air entering through the smoking article. Decomposition products and other substances. This is particularly advantageous when the non-through combustible heat source contains one or more additives to help the non-through combustible heat source ignite or burn.

在根據本發明之包含一非直通可燃熱源的煙品中,特別重要的是優化在該可燃熱源和該氣溶膠形成基材之間的熱傳導傳遞。在如果有藉由任何小量強制熱對流之該氣溶膠形成基材加熱時,含有一與該可燃熱源和該氣溶膠形成基材徑向分離的單一導熱元件,已經被認為在包含非直通熱源之煙品的抽煙表現上具有一種特別有利地影響。 In a smoking article comprising a non-through combustible heat source according to the present invention, it is particularly important to optimize the heat transfer between the combustible heat source and the aerosol-forming substrate. When the aerosol-forming substrate is heated by any small amount of forced convection, a single thermally conductive element containing a radial separation from the combustible heat source and the aerosol-forming substrate has been considered to include non-through heat sources The smoking behavior of cigarettes has a particularly advantageous effect.

應當理解的是根據本發明之煙品可包含非直通可燃熱源,該等非直通可燃熱源包含一個或多個封閉或阻塞通道,空氣不能穿過該等通道被吸入,用於使用者的吸入。 It should be understood that the smoking article according to the present invention may include non-through combustible heat sources, and these non-through combustible heat sources include one or more closed or blocked passages through which air cannot be inhaled for user inhalation.

例如,根據本發明之煙品可包含非直通可燃熱源,該等非直通可燃熱源包含一個或多個沿該非直通可燃熱源長度,只從在該非直通可燃熱源上游端處之前表面延伸部分路徑的的封閉通道。 For example, a smoking article according to the present invention may include a non-through combustible heat source that includes one or more of the paths along the length of the non-through combustible heat source, extending only from a portion of the surface before the non-through combustible heat source upstream end. Closed channel.

含有一個或多個封閉的空氣通道增加該非直通可燃熱源暴露於空氣中氧氣的表面積,並可有利地促進該非直通可燃熱源的點燃和持續燃燒。 Containing one or more closed air passages increases the surface area of the non-through combustible heat source that is exposed to oxygen in the air, and can advantageously facilitate ignition and continuous combustion of the non-through combustible heat source.

替代地,根據本發明之煙品可包含一直通可燃熱源,其中有一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道。 Alternatively, the smoking article according to the present invention may include a through combustible heat source having one or more airflow channels extending from a front surface to a rear surface of the through combustible heat source.

該一個或多個氣流通道可包含一個或多個封閉的氣流通道。 The one or more airflow channels may include one or more closed airflow channels.

如本文所用,該術語「封閉」係用來描述延伸穿過該直通可燃熱源內部且被該直通可燃熱源包圍的氣流通道。 As used herein, the term "closed" is used to describe an airflow channel that extends through the interior of the through combustible heat source and is surrounded by the through combustible heat source.

替代地或另外地,該一個或多個氣流通道可包含一個或多個非封閉的氣流通道。例如,該一個或多個氣流通道可包含一個或多個沿該直通可燃熱源外側延伸的凹槽或其他非封閉氣流通道。 Alternatively or additionally, the one or more airflow channels may include one or more non-closed airflow channels. For example, the one or more airflow channels may include one or more grooves or other non-closed airflow channels extending along the outside of the through combustible heat source.

該一個或多個氣流通道可包含一個或多個封閉的氣流通道,或一個或多個非封閉的氣流通道,或這些通道的組合。 The one or more airflow channels may include one or more closed airflow channels, or one or more non-closed airflow channels, or a combination of these channels.

在某些實施例中,根據本發明之煙品包含一個、二個、或三個從該直通可燃熱源前表面延伸到後表面的氣流通道。 In some embodiments, the smoking article according to the present invention includes one, two, or three air flow channels extending from a front surface to a rear surface of the through combustible heat source.

在某些最佳實施例中,根據本發明之煙品包含一從該直通可燃熱源前表面延伸到後表面的單一氣流通道。 In certain preferred embodiments, the smoking article according to the present invention includes a single air flow channel extending from the front surface to the rear surface of the through combustible heat source.

在某些特別佳地實施例中,根據本發明之煙品包含一從該直通可燃熱源前表面延伸到後表面的單一實質上中央或軸向氣流通道。 In some particularly preferred embodiments, the smoking article according to the present invention comprises a single substantially central or axial airflow channel extending from the front surface to the rear surface of the through combustible heat source.

在這類實施例中,該單一氣流通道直徑較佳地在大約1.5毫米和大約3毫米之間。 In such embodiments, the diameter of the single air flow channel is preferably between about 1.5 mm and about 3 mm.

應當理解的是除了一個或多個用於使用者之吸入空氣而空氣可穿過此被吸入的氣流通道外,根據本發明之煙品可包含直通可燃熱源,該直通可燃熱源包含一個或多個封閉或阻塞通道,空氣不能穿過該等通道被吸入,用於使用者的吸入。 It should be understood that in addition to one or more air passages for the user to inhale air through which the air can be drawn, the smoking article according to the present invention may include a through combustible heat source, the through combustible heat source comprising one or more Closed or blocked passages through which air cannot be drawn for users' inhalation.

例如,根據本發明之煙品可包含直通可燃熱源,該等直通可燃熱源包含一個或多個從該可燃熱源前表面延伸至後表面的氣流通道,及一個或多個沿該可燃熱源長度,只從該直通可燃熱源之前表面延伸部分路徑的封閉通道。 For example, a smoking article according to the present invention may include a through combustible heat source including one or more airflow channels extending from the front surface to the rear surface of the combustible heat source, and one or more along the length of the combustible heat source, only A closed channel extending part of the path from the front surface of the through-combustible heat source.

含有一個或多個封閉的空氣通道增加該直通可燃熱源暴露於空氣中氧氣的表面積,並可有利地促進該直通可燃熱源的點燃和持續燃燒。 Containing one or more closed air passages increases the surface area of the through combustible heat source that is exposed to oxygen in the air, and can advantageously promote ignition and continuous combustion of the through combustible heat source.

根據本發明之煙品包含一直通可燃熱源,該煙品進一步包含一實質上不可燃不透氣屏障,該實質上不可燃不透氣屏障在該直通可燃熱源和該一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道之間。 The smoking article according to the present invention includes a through combustible heat source, the smoking article further includes a substantially non-combustible air-impermeable barrier, the substantially non-combustible air-impermeable barrier between the through-combustible heat source and the one or more through-combustible heat sources The front surface extends between the air flow channels on the rear surface.

含有一在該直通可燃熱源和該一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道之間的實質上不可燃不透氣屏障,當該吸入空氣通過該一個或多個氣流通道時,在從吸入的空氣進入該煙品穿過一個或多個氣流通道而使一直通可燃熱源點燃和燃燒期間,可有利地實質上防止或抑制燃燒和熱分解形成的產物和其他物質。在該直通可燃熱源包含一個或多個添加劑,以幫助該直通可燃熱源點燃或燃燒時,這點特別有利。 Containing a substantially non-flammable, air-impermeable barrier between the through combustible heat source and the one or more airflow channels extending from a front surface to a rear surface of the through combustible heat source, when the intake air passes through the one or more airflow channels During the ignition and combustion of the inhaled air entering the smoking article through one or more airflow channels to ignite and burn through a combustible heat source, the products and other substances formed by combustion and thermal decomposition can be substantially prevented or suppressed. This is particularly advantageous when the through combustible heat source contains one or more additives to help the through combustible heat source ignite or burn.

在該直通可燃熱源和該一個或多個氣流通道之間的該屏障可附著或以其他方式貼附於該直通可燃熱源。 The barrier between the through combustible heat source and the one or more airflow channels may be attached or otherwise attached to the through combustible heat source.

在某些最佳實施例中,該屏障包含一設置在該一個或多個氣流通道內表面上的實質上不可燃不透氣屏障塗層。在這類實施例中,較佳地該屏障包含一在該一個或多個氣流通道至少實質上整個內表面上提供塗層的屏障,更佳地該屏障包含一在該一個或多個氣流通道整個內表面上提供塗層的屏障。 In some preferred embodiments, the barrier includes a substantially non-flammable, air-impermeable barrier coating disposed on an inner surface of the one or more airflow channels. In such embodiments, preferably the barrier comprises a barrier providing a coating on at least substantially the entire inner surface of the one or more airflow channels, and more preferably the barrier comprises a barrier over the one or more airflow channels. Provides a coated barrier over the entire inner surface.

如本文所用,該術語「塗層」係用來描述一層覆蓋和黏附於該可燃熱源的材料。 As used herein, the term "coating" is used to describe a layer of material that covers and adheres to the combustible heat source.

在其他實施例中,該屏障塗層可藉由插入一襯墊到該一個或多個氣流通道來設置。例如,在該一個 或多個氣流通道包含一個或多個延伸穿過該直通可燃熱源內部的封閉氣流通道時,一實質上不可燃不透氣中空管可插入到該一個或多個氣流通道的每一個。 In other embodiments, the barrier coating may be provided by inserting a gasket into the one or more airflow channels. For example, in this one When the one or more airflow channels include one or more closed airflow channels extending through the interior of the through-combustible heat source, a substantially non-combustible air-impermeable hollow tube may be inserted into each of the one or more airflow channels.

根據該煙品所需要的特徵和性能,該屏障可具有低熱傳導率或高熱傳導率。較佳地,該屏障具有低熱傳導率。 Depending on the characteristics and performance required for the smoking article, the barrier may have a low thermal conductivity or a high thermal conductivity. Preferably, the barrier has low thermal conductivity.

該屏障厚度可適當調整,以達到良好的抽煙性能。在某些實施例中,該屏障厚度可在大約30微米和大約200微米之間。在一最佳實施例中,該屏障厚度在大約30微米和大約100微米之間。 The thickness of the barrier can be adjusted appropriately to achieve good smoking performance. In some embodiments, the barrier thickness may be between about 30 microns and about 200 microns. In a preferred embodiment, the barrier thickness is between about 30 microns and about 100 microns.

該屏障可從一個或多個合適的材料形成,在點燃和燃燒期間,該直通可燃熱源達到的溫度下,該材料是實質上熱穩定和不可燃。合適材料在本技術領域中是已知的,且包含,但不限於,例如:黏土;金屬氧化物,如氧化鐵、氧化鋁、二氧化鈦、二氧化矽、二氧化矽-氧化鋁、氧化鋯、和氧化鈰;沸石;磷酸鋯;及其他陶瓷材料或它們的組合。 The barrier may be formed from one or more suitable materials that are substantially thermally stable and non-combustible at temperatures reached by the through-combustible heat source during ignition and combustion. Suitable materials are known in the art and include, but are not limited to, for example: clay; metal oxides such as iron oxide, aluminum oxide, titanium dioxide, silicon dioxide, silicon dioxide-alumina, zirconia, And cerium oxide; zeolites; zirconium phosphate; and other ceramic materials or combinations thereof.

該屏障較佳地材料可從包含黏土、玻璃、鋁、氧化鐵和它們的組合中形成。如果需要,催化成分,如促進一氧化碳氧化成二氧化碳的成分,可結合入該屏障中。合適的催化成分包含,但不限於,例如,鉑、鈀、過渡金屬和它們的氧化物。 The barrier preferably is formed from materials including clay, glass, aluminum, iron oxide, and combinations thereof. If desired, catalytic components, such as those that promote the oxidation of carbon monoxide to carbon dioxide, can be incorporated into the barrier. Suitable catalytic components include, but are not limited to, for example, platinum, palladium, transition metals, and their oxides.

在該屏障包含一在該一個或多個氣流通道內表面上提供塗層的屏障時,藉由任何適當的方法,可施加該屏障塗層至該一個或多個氣流通道內表面上,如在 US-A-5,040,551中所述的方法。例如,對該一個或多個氣流通道內表面可用屏障塗層溶液或懸浮液來噴塗、浸濕、或塗裝。在某些最佳實施例中,當該可燃熱源係擠出成型時,該屏障塗層藉由WO-A2-2009/074870中描述的程序,施加至該一個或多個氣流通道內表面。 When the barrier includes a barrier that provides a coating on the inner surface of the one or more airflow channels, the barrier coating may be applied to the inner surface of the one or more airflow channels by any suitable method, such as in The method described in US-A-5,040,551. For example, the inner surface of the one or more airflow channels may be sprayed, wetted, or painted with a barrier coating solution or suspension. In some preferred embodiments, when the combustible heat source is extruded, the barrier coating is applied to the inner surface of the one or more airflow channels by a procedure described in WO-A2-2009 / 074870.

根據本發明之煙品可進一步包含一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障。 The smoking article according to the present invention may further include a substantially non-combustible air-impermeable barrier between the rear surface of the combustible heat source and the aerosol-forming substrate.

在根據本發明之煙品包含一直通可燃熱源和一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障時,該屏障應該允許空氣進入該煙品,穿過該一個或多個從該直通可燃熱源前表面延伸至後表面的氣流通道,往下游吸入,穿過該煙品。 When the smoking article according to the present invention comprises a flammable heat source and a substantially non-flammable, air-impermeable barrier between the rear surface of the flammable heat source and the aerosol-forming substrate, the barrier should allow air to enter the smoking article, Pass the one or more airflow channels extending from the front surface to the rear surface of the through combustible heat source, suck downstream, and pass through the smoking article.

該屏障可鄰接該可燃熱源後表面和該氣溶膠形成基材之一或二者。替代地,該屏障可與該可燃熱源後表面和該氣溶膠形成基材之一或二者隔開。 The barrier may abut one or both of the back surface of the combustible heat source and the aerosol-forming substrate. Alternatively, the barrier may be separated from one or both of the back surface of the combustible heat source and the aerosol-forming substrate.

該屏障可附著或以其他方式貼附到該可燃熱源後表面和該氣溶膠形成基材之一或二者。 The barrier may be attached or otherwise attached to one or both of the back surface of the combustible heat source and the aerosol-forming substrate.

在某些最佳實施例中,該屏障包含一設置在該可燃熱源後表面上的實質上不可燃不透氣屏障塗層。在這類實施例中,較佳地該屏障包含設置在該可燃熱源至少實質上整個後表面上的屏障塗層。更佳地,該屏障包含一設置在該可燃熱源整個後表面上的屏障塗層。 In some preferred embodiments, the barrier includes a substantially non-flammable, air-impermeable barrier coating disposed on a rear surface of the combustible heat source. In such embodiments, preferably the barrier comprises a barrier coating disposed on at least substantially the entire rear surface of the combustible heat source. More preferably, the barrier comprises a barrier coating disposed on the entire rear surface of the combustible heat source.

在該可燃熱源點燃和燃燒期間,該屏障可有利地限制該氣溶膠形成基材暴露的溫度,以便在該煙品 使用期間,幫助避免或減少該氣溶膠形成基材的熱分解或燃燒。在該可燃熱源包含一個或多個添加劑以幫助該可燃熱源點燃時,這點特別有利。 The barrier can advantageously limit the temperature at which the aerosol-forming substrate is exposed during the ignition and combustion of the combustible heat source in order to limit the exposure of the aerosol-forming substrate. Helps avoid or reduce thermal decomposition or combustion of the aerosol-forming substrate during use. This is particularly advantageous when the combustible heat source contains one or more additives to help the combustible heat source ignite.

為了方便氣溶膠的形成,加熱煙品的該氣溶膠形成基材通常包含一多元醇,如甘油、或其他已知的氣溶膠形成物。在儲存和抽煙期間,這類氣溶膠形成物可從該已知加熱煙品的氣溶膠形成基材遷移至該煙品的可燃熱源。遷移氣溶膠形成物到該已知加熱煙品的可燃熱源,可不利地導致該氣溶膠形成物的熱分解,特別是在該加熱煙品的抽煙期間。 In order to facilitate the formation of aerosols, the aerosol-forming substrate for heating the smoking article usually contains a polyhydric alcohol, such as glycerol, or other known aerosol-forming materials. During storage and smoking, such aerosol formers can migrate from the aerosol-forming substrate of the known heated smoking article to a flammable heat source of the smoking article. Migrating the aerosol formation to the flammable heat source of the known heated smoking article may adversely cause thermal decomposition of the aerosol forming article, especially during smoking of the heated smoking article.

含有根據本發明之煙品的一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,在該煙品儲存期間,可有利地實質上防止或抑制該氣溶膠形成基材的成分遷移至該可燃熱源。 A substantially non-combustible, air-impermeable barrier containing the smoking article according to the present invention between the back surface of the combustible heat source and the aerosol-forming substrate may advantageously be substantially prevented or inhibited during storage of the smoking article The components of the sol-forming substrate migrate to the combustible heat source.

替代地或另外地,含有根據本發明之煙品的一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,在該煙品使用期間,可有利地實質上防止或抑制該氣溶膠形成基材的成分遷移至該可燃熱源。 Alternatively or in addition, a substantially non-flammable, air-impermeable barrier containing the smoking article according to the present invention between the back surface of the combustible heat source and the aerosol-forming substrate may advantageously be used during the smoking article. The components of the aerosol-forming substrate are prevented or inhibited from migrating to the combustible heat source.

含有一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,在該氣溶膠形成基材包含至少一個氣溶膠形成物時,特別有利。 Containing a substantially non-flammable, air-impermeable barrier between the rear surface of the combustible heat source and the aerosol-forming substrate is particularly advantageous when the aerosol-forming substrate contains at least one aerosol-forming substance.

在這類實施例中,含有根據本發明之煙品的一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,在該煙品儲存和使用期間,可有 利地實質上防止或抑制至少一個氣溶膠形成物從該氣溶膠形成基材遷移至該可燃熱源。在使用該煙品期間,至少一個氣溶膠形成物的熱分解可因此而有利地實質上避免或減少。 In such embodiments, a substantially non-flammable, air-impermeable barrier containing the smoking article according to the present invention between the rear surface of the combustible heat source and the aerosol-forming substrate may be used during storage and use of the smoking article. Have Advantageously substantially prevents or inhibits migration of at least one aerosol-forming substance from the aerosol-forming substrate to the combustible heat source. During the use of the smoking article, the thermal decomposition of the at least one aerosol former can therefore advantageously be substantially avoided or reduced.

根據該煙品所需要的特徵和性能,該在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,可具有低熱傳導率或高熱傳導率。在某些實施例中,在使用修訂瞬時平面熱源(MTPS)方法測量時,在23℃和50%相對濕度下,形成該屏障的材料可具有一整體導熱率在大約0.1瓦每公尺克爾文(Kelvin)(W/(M‧K))和大約200瓦每公尺克爾文(W/(M‧K))之間。 According to the required characteristics and performance of the smoking article, the substantially non-flammable, air-impermeable barrier between the rear surface of the combustible heat source and the aerosol-forming substrate may have a low thermal conductivity or a high thermal conductivity. In some embodiments, the material forming the barrier may have an overall thermal conductivity of about 0.1 Watt per meter in kelvins when measured using a modified instantaneous planar heat source (MTPS) method at 23 ° C and 50% relative humidity. (Kelvin) (W / (M‧K)) and approximately 200 watts per meter (W / (M‧K)).

該屏障厚度可適當調整,以達到良好的抽煙性能。在某些實施例中,該屏障厚度可在大約10微米和大約500微米之間。 The thickness of the barrier can be adjusted appropriately to achieve good smoking performance. In some embodiments, the barrier thickness may be between about 10 microns and about 500 microns.

該屏障可從一個或多個合適的材料形成,在點燃和燃燒期間,該可燃熱源達到的溫度下,該材料實質上為熱穩定和不可燃。合適材料在本技術領域中是已知的,且包含,但不限於於,黏土(如,例如,膨潤土和高嶺土)、玻璃、礦物質、陶瓷材料、樹脂、金屬和它們的組合。 The barrier may be formed from one or more suitable materials that are substantially thermally stable and non-combustible at temperatures reached by the flammable heat source during ignition and combustion. Suitable materials are known in the art and include, but are not limited to, clays (eg, for example, bentonite and kaolin), glass, minerals, ceramic materials, resins, metals, and combinations thereof.

該屏障較佳地材料可從包含黏土和玻璃中形成,該屏障更佳地材料可從包含銅、鋁、不銹鋼、合金、氧化鋁(Al2O3)、樹脂和礦物膠中形成。 The material of the barrier is preferably formed from clay and glass, and the material of the barrier is preferably formed from copper, aluminum, stainless steel, alloy, aluminum oxide (Al 2 O 3 ), resin and mineral glue.

在某些最佳實施例中,該屏障包含一包含設置在該可燃熱源後表面上之膨潤土和高嶺土50/50混合的黏土塗層。在其他較佳地實施例中,該屏障包含一設置在該可燃熱源後表面上的玻璃塗層,更佳地一燒結玻璃塗層。 In some preferred embodiments, the barrier comprises a clay coating comprising a 50/50 mixture of bentonite and kaolin disposed on the rear surface of the combustible heat source. In other preferred embodiments, the barrier includes a glass coating disposed on the rear surface of the combustible heat source, and more preferably a sintered glass coating.

在某些特別佳地實施例中,該屏障包含一在該可燃熱源後表面上的鋁塗層。 In some particularly preferred embodiments, the barrier includes an aluminum coating on a rear surface of the combustible heat source.

較佳地,屏障厚度至少大約10微米。 Preferably, the barrier thickness is at least about 10 microns.

由於黏土對空氣的輕微透氣性,在實施例中,在該屏障包含設置在該可燃熱源後表面上的黏土塗層時,更佳地該黏土塗層厚度至少大約50微米,和最佳地在大約50微米和大約350微米之間。 Due to the slight air permeability of the clay, in the embodiment, when the barrier includes a clay coating disposed on the rear surface of the combustible heat source, the clay coating is more preferably at least about 50 microns thick, and most preferably Between about 50 microns and about 350 microns.

在實施例中,在該屏障從一個或多個更加不透氣的材料形成時,如鋁,該屏障可較薄,且通常較佳地具有厚度小於大約100微米,和更佳地大約20微米。 In embodiments, when the barrier is formed from one or more more air-impermeable materials, such as aluminum, the barrier may be thinner, and generally preferably has a thickness of less than about 100 microns, and more preferably about 20 microns.

在實施例中,在該屏障包含一設置在該可燃熱源後表面上的玻璃塗層時,較佳地該玻璃塗層厚度小於大約200微米。 In an embodiment, when the barrier includes a glass coating disposed on a rear surface of the combustible heat source, preferably the glass coating has a thickness of less than about 200 microns.

該屏障厚度可使用一顯微鏡、一掃描電子顯微鏡(SEM)、或在本技術領域中已知的任何其他合適的測量方法來測量。 The barrier thickness can be measured using a microscope, a scanning electron microscope (SEM), or any other suitable measurement method known in the art.

在該屏障包含一設置在該可燃熱源後表面上的屏障塗層時,藉由任何在本技術領域中已知的適當方法,可施加該屏障塗層覆蓋和附著至該可燃熱源後表面,包含,但不限於,噴塗、氣相沉積法、浸漬法、材 料轉移(例如,刷塗或膠合)、靜電沉積或它們的任何組合。 When the barrier includes a barrier coating disposed on the rear surface of the combustible heat source, the barrier coating may be applied to cover and attach to the rear surface of the combustible heat source by any suitable method known in the art, including , But not limited to, spraying, vapor deposition, dipping, materials Material transfer (eg, brushing or gluing), electrostatic deposition, or any combination thereof.

例如,該屏障塗層可用預先形成一大小和形狀近似該可燃熱源後表面的屏障,並將其施加到該可燃熱源後表面,以覆蓋和附著到該可燃熱源的至少實質上整個以後表面來作成。替代地,該屏障塗層可在它施加至該可燃熱源後表面後,切割或其他方式加工。在一種較佳實施例中,藉由將鋁箔膠合或按壓到該可燃熱源,把鋁箔施加至該可燃熱源後表面,然後切割或其他方式加工,使該鋁箔覆蓋和附著到該可燃熱源的至少實質上的整個後表面,較佳地,覆蓋和附著到該可燃熱源整個後表面。 For example, the barrier coating can be formed by pre-forming a barrier having a size and shape similar to the rear surface of the combustible heat source and applying it to the rear surface of the combustible heat source to cover and adhere to at least substantially the entire rear surface of the combustible heat source. . Alternatively, the barrier coating may be cut or otherwise processed after it is applied to the back surface of the combustible heat source. In a preferred embodiment, the aluminum foil is applied to the rear surface of the combustible heat source by gluing or pressing the aluminum foil to the combustible heat source, and then cutting or other processing is performed to cover and attach the aluminum foil to at least the substantial substance of the combustible heat source The entire rear surface, preferably, covers and attaches to the entire rear surface of the combustible heat source.

在另一較佳實施例中,該屏障塗層藉由把一個或多個合適塗層材料的溶液或懸浮液,施加到該可燃熱源後表面來形成。例如,可藉由把一個或多個合適塗層材料的溶液或懸浮液浸漬該可燃熱源後表面,或藉由把一個或多個合適塗層材料的溶液或懸浮液塗刷或噴塗到該可燃熱源後表面上,或藉由把一個或多個合適塗層材料的粉末或粉末混合物靜電沉積到該可燃熱源後表面上,該屏障塗層可施加至該可燃熱源後表面。在藉由把一個或多個合適塗層材料的粉末或粉末混合物靜電沉積到該可燃熱源後表面上,把該屏障塗層施加至該可燃熱源後表面時,較佳地在靜電沉積前,該可燃熱源後表面預先進行水玻璃處理。較佳地,該屏障塗層用噴塗施加。 In another preferred embodiment, the barrier coating is formed by applying a solution or suspension of one or more suitable coating materials to the back surface of the combustible heat source. For example, the back surface of the combustible heat source can be dipped by a solution or suspension of one or more suitable coating materials, or by spraying or spraying the solution or suspension of one or more suitable coating materials onto the combustible. The barrier coating may be applied to the back surface of the combustible heat source, or by electrostatically depositing one or more powders or powder mixtures of a suitable coating material onto the back surface of the combustible heat source. When electrostatically depositing a powder or powder mixture of one or more suitable coating materials onto the back surface of the combustible heat source, the barrier coating is preferably applied to the back surface of the combustible heat source, preferably before the electrostatic deposition, the The rear surface of the combustible heat source is treated with water glass in advance. Preferably, the barrier coating is applied by spraying.

該屏障塗層可透過一個或多個合適塗層材料的溶液或懸浮液,單一施加至該可燃熱源後表面來形成。替代地,該屏障塗層可透過一個或多個合適塗層材料的溶液或懸浮液,多次施加至該可燃熱源後表面來形成。例如,該屏障塗層可透過一個或多個合適塗層材料的溶液或懸浮液,一、二、三、四、五、六、七、或八次連續施加至該可燃熱源後表面來形成。 The barrier coating can be formed by applying a single solution or suspension of one or more suitable coating materials to the rear surface of the combustible heat source. Alternatively, the barrier coating may be formed by applying a solution or suspension of one or more suitable coating materials to the rear surface of the combustible heat source multiple times. For example, the barrier coating may be formed by applying a solution or suspension of one or more suitable coating materials, one, two, three, four, five, six, seven, or eight consecutive applications to the back surface of the combustible heat source.

較佳地,該屏障塗層可透過一個或多個合適塗層材料的溶液或懸浮液,在一次和十次之間施加至該可燃熱源後表面來形成。 Preferably, the barrier coating may be formed by applying a solution or suspension of one or more suitable coating materials to the back surface of the combustible heat source between one and ten times.

在一個或多個合適塗層材料的溶液或懸浮液施加至該可燃熱源後表面後,可使該可燃熱源乾燥以形成該屏障塗層。 After a solution or suspension of one or more suitable coating materials is applied to the back surface of the combustible heat source, the combustible heat source may be dried to form the barrier coating.

在該屏障塗層透過一個或多個合適塗層材料的溶液或懸浮液,多次施加至該可燃熱源後表面來形成時,在連續施加該溶液或懸浮液之間,需要使該可燃熱源乾燥。 When the barrier coating is formed by applying a solution or suspension of one or more suitable coating materials to the rear surface of the combustible heat source multiple times, the combustible heat source needs to be dried between successive application of the solution or suspension .

替代地或除了乾燥以外,在把一個或多個合適塗層材料的溶液或懸浮液施加至該可燃熱源後,可燒結在該可燃熱源上的塗層材料,以形成該屏障塗層。在該屏障塗層係一玻璃或陶瓷塗層時,燒結該屏障塗層是特別佳地。較佳地,燒結該屏障塗層的溫度在大約500℃和大約900℃之間,和更佳地在大約700℃之間。 Alternatively or in addition to drying, after applying a solution or suspension of one or more suitable coating materials to the combustible heat source, the coating material on the combustible heat source may be sintered to form the barrier coating. When the barrier coating is a glass or ceramic coating, sintering the barrier coating is particularly preferred. Preferably, the temperature at which the barrier coating is sintered is between about 500 ° C and about 900 ° C, and more preferably between about 700 ° C.

根據本發明之煙品可包含一個或多個圍繞該氣溶膠形成基材周邊的第一進氣口。 The smoking article according to the present invention may include one or more first air inlets surrounding the periphery of the aerosol-forming substrate.

如本文所用,該術語「進氣口」係用來描述一孔、狹縫、槽、或其他開口,空氣可穿過該開口後被吸入該煙品。 As used herein, the term "air inlet" is used to describe a hole, slot, slot, or other opening through which air can be drawn into the smoking article.

根據本發明之煙品,其包含一個或多個圍繞該氣溶膠形成基材周邊的第一進氣口,在使用時,清涼空氣穿過該等第一進氣口,被吸入該煙品的氣溶膠形成基材。該穿過該等第一進氣口,被吸入該氣溶膠形成基材的空氣,從該氣溶膠形成基材往下游通過該煙品,並穿過該煙品的近端,離開該煙品。 The smoking article according to the present invention comprises one or more first air inlets surrounding the aerosol-forming substrate. When in use, cool air passes through the first air inlets and is inhaled by the smoking article. The aerosol forms a substrate. The air passing through the first air inlets is sucked into the aerosol-forming substrate, passes downstream from the aerosol-forming substrate, passes through the smoking article, passes through the proximal end of the smoking article, and leaves the smoking article. .

在使用者抽吸期間,該穿過一個或多個圍繞該氣溶膠形成基材周邊之第一進氣口的吸入清涼空氣,有利地降低該氣溶膠形成基材溫度。在使用者抽吸期間,這有利地實質上防止或抑制該氣溶膠形成基材溫度的尖峰。 During the user's suction, the inhaled cool air passing through one or more first air inlets surrounding the periphery of the aerosol-forming substrate advantageously reduces the temperature of the aerosol-forming substrate. This advantageously prevents or inhibits the aerosol from forming spikes in the temperature of the substrate during the user's puff.

如本文所用,該術語「清涼空氣」係用來描述當使用者抽吸時,沒有顯著被該可燃熱源加熱的周圍空氣。 As used herein, the term "cool air" is used to describe the ambient air that is not significantly heated by the combustible heat source when the user is inhaling.

藉由防止或抑制該氣溶膠形成基材溫度的尖峰,含有一個或多個圍繞該氣溶膠形成基材周邊的第一進氣口,在強烈抽吸法下,有利地幫助避免或減少該氣溶膠形成基材之燃燒或熱分解。另外,含有一個或多個圍繞該氣溶膠形成基材周邊的第一進氣口,有利地幫助盡量減少或減少使用者抽吸法對該煙品主流氣溶膠之成分的影響。 By preventing or suppressing spikes in the temperature of the aerosol-forming substrate, containing one or more first air inlets around the periphery of the aerosol-forming substrate, it helps to avoid or reduce the aerosol advantageously under the strong suction method The sol forms the substrate for combustion or thermal decomposition. In addition, containing one or more first air inlets surrounding the aerosol-forming substrate advantageously helps to minimize or reduce the influence of the user's smoking method on the components of the mainstream aerosol of the cigarette.

在某些最佳實施例中,該一個或多個第一進氣口係位置鄰近該氣溶膠形成基材的下游端。 In some preferred embodiments, the one or more first air inlet systems are located adjacent to a downstream end of the aerosol-forming substrate.

在某些實施例中,該氣溶膠形成基材可鄰接該可燃熱源後表面。 In some embodiments, the aerosol-forming substrate may abut the rear surface of the combustible heat source.

如本文所用,該術語「鄰接」係用來描述該氣溶膠形成基材係直接接觸該可燃熱源後表面或一設置在該可燃熱源後表面上的實質上不可燃不透氣屏障塗層。 As used herein, the term "adjacent" is used to describe that the aerosol-forming substrate is in direct contact with the back surface of the combustible heat source or a substantially non-flammable, air-impermeable barrier coating disposed on the back surface of the combustible heat source.

在其他實施例中,該氣溶膠形成基材可從該可燃熱源後表面隔開。即,在該氣溶膠形成基材和該可燃熱源後表面之間可以是一空間或間隙。 In other embodiments, the aerosol-forming substrate may be separated from a rear surface of the combustible heat source. That is, there may be a space or a gap between the aerosol-forming substrate and the rear surface of the combustible heat source.

如本文所用,該術語「隔開」係用來描述該氣溶膠形成基材沒有與該可燃熱源後表面或一設置在該可燃熱源後表面上的實質上不可燃不透氣屏障塗層直接接觸。 As used herein, the term "spaced" is used to describe that the aerosol-forming substrate is not in direct contact with the back surface of the flammable heat source or a substantially non-flammable, air-impermeable barrier coating disposed on the back surface of the flammable heat source.

替代地或除了一個或多個第一進氣口外,在這類實施例中,根據本發明之煙品可包含一個或多個在該可燃熱源後表面和該氣溶膠形成基材之間的第二進氣口。在使用時,清涼空氣穿過第二進氣口,被吸入在該可燃熱源和該氣溶膠形成基材之間的空間。該穿過第二進氣口,被吸入在該可燃熱源和該氣溶膠形成基材之間空間的吸入空氣,從在該可燃熱源和該氣溶膠形成基材之間的空間,往下游通過該煙品,並穿過該煙品近端和離開該煙品。 Alternatively or in addition to one or more first air inlets, in such embodiments, the smoking article according to the present invention may include one or more first sections between the rear surface of the combustible heat source and the aerosol-forming substrate. Two air inlets. In use, cool air passes through the second air inlet and is drawn into the space between the combustible heat source and the aerosol-forming substrate. The inhaled air that is drawn into the space between the combustible heat source and the aerosol-forming substrate through the second air inlet passes from the space between the combustible heat source and the aerosol-forming substrate to the downstream through the The smoking article passes through the proximal end of the smoking article and leaves the smoking article.

在使用者抽吸期間,清涼空氣穿過該一個或多個在該可燃熱源後表面和該氣溶膠形成基材之間的第二進氣口而吸入,可有利地降低該氣溶膠形成基材的溫度。在使用者抽吸期間,這有利地實質上防止或抑制該氣溶膠形成基材溫度的尖峰。 During the user's suction, cool air is drawn through the one or more second air inlets between the rear surface of the combustible heat source and the aerosol-forming substrate, which can advantageously reduce the aerosol-forming substrate. temperature. This advantageously prevents or inhibits the aerosol from forming spikes in the temperature of the substrate during the user's puff.

替代地或除了一個或多個第一進氣口,或一個或多個第二進氣口外,根據本發明之煙品可包含一個或多個在該氣溶膠形成基材下游的第三進氣口。 Alternatively or in addition to one or more first air inlets or one or more second air inlets, the smoking article according to the present invention may include one or more third air inlets downstream of the aerosol-forming substrate. mouth.

應當理解的是根據本發明之煙品可包含一個或多個圍繞該氣溶膠形成基材周邊的第一進氣口,或一個或多個在該可燃熱源後表面和該氣溶膠形成基材之間的第二進氣口,或一個或多個在該氣溶膠形成基材下游的第三進氣口,或它們的任何組合。 It should be understood that the smoking article according to the present invention may include one or more first air inlets surrounding the periphery of the aerosol-forming substrate, or one or more of the rear surface of the combustible heat source and the aerosol-forming substrate. A second air inlet, or one or more third air inlets downstream of the aerosol-forming substrate, or any combination thereof.

該等進氣口的數量、形狀、尺寸、和位置可適當地調整,以達到一很好的抽煙性能。 The number, shape, size, and position of the air inlets can be adjusted appropriately to achieve a good smoking performance.

較佳地,該可燃熱源係一碳質熱源。如本文所用,該術語「碳質」係用來描述一含碳的可燃熱源。較佳地,依該可燃熱源乾重,根據本發明之煙品使用的可燃碳質熱源具有至少大約35%的碳含量,更佳地至少大約40%,最佳地至少大約45%。 Preferably, the combustible heat source is a carbonaceous heat source. As used herein, the term "carbonaceous" is used to describe a carbon-containing combustible heat source. Preferably, based on the dry weight of the combustible heat source, the combustible carbonaceous heat source used in the smoking article according to the present invention has a carbon content of at least about 35%, more preferably at least about 40%, and most preferably at least about 45%.

在一些實施例中,根據本發明的可燃熱源係可燃的碳基熱源。如本文所用,該術語「碳基熱源」係用來描述一主要包含碳的熱源。 In some embodiments, the combustible heat source according to the present invention is a combustible carbon-based heat source. As used herein, the term "carbon-based heat source" is used to describe a heat source mainly containing carbon.

根據本發明之煙品使用的可燃碳基熱源具有至少大約50%的碳含量。例如,依該可燃碳基熱源乾重, 根據本發明之煙品使用的可燃碳基熱源可具有至少大約60%的碳含量,或至少大約70%,或至少大約80%。 The combustible carbon-based heat source used in the smoking article according to the present invention has a carbon content of at least about 50%. For example, depending on the dry weight of the combustible carbon-based heat source, The combustible carbon-based heat source used in the smoking article according to the present invention may have a carbon content of at least about 60%, or at least about 70%, or at least about 80%.

根據本發明之煙品可包含從一個或多個合適之含碳材料形成的可燃碳質熱源。 The smoking article according to the invention may comprise a combustible carbonaceous heat source formed from one or more suitable carbonaceous materials.

如果需要,一個或多個黏合劑可結合該一個或多個含碳材料。較佳地,該一個或多個黏合劑是有機黏合劑。已知合適的有機黏合劑,包含但不限於,膠(例如,瓜爾膠)、修飾纖維素和纖維素衍生物(例如,甲基纖維素、羧甲基纖維素、羥丙基纖維素、和羥丙基甲基纖維素)、麵粉、澱粉、糖、植物油、和它們的組合。 If desired, one or more adhesives may be combined with the one or more carbonaceous materials. Preferably, the one or more adhesives are organic adhesives. Known suitable organic binders include, but are not limited to, gums (e.g., guar gum), modified cellulose, and cellulose derivatives (e.g., methyl cellulose, carboxymethyl cellulose, hydroxypropyl cellulose, And hydroxypropyl methyl cellulose), flour, starch, sugar, vegetable oil, and combinations thereof.

在一較佳實施例中,該可燃熱源係從一碳粉混合物、修飾纖維素、麵粉、和糖形成。 In a preferred embodiment, the combustible heat source is formed from a carbon powder mixture, modified cellulose, flour, and sugar.

代替地,或除了一個或多個黏合劑外,根據本發明之煙品使用的可燃熱源可包含一個或多個添加劑,以改良該可燃熱源特性。合適的添加劑包含,但不限定於,促進該可燃熱源固結的添加劑(例如,燒結助劑),促進該可燃熱源點燃的添加劑(例如,氧化劑,如高氯酸鹽、氯酸鹽、硝酸鹽、過氧化物、高錳酸鹽、鋯、和它們的組合),促進該可燃熱源燃燒的添加劑(例如,鉀和鉀鹽,如檸檬酸鉀),和促進一個或多個該可燃熱源燃燒產生氣體之熱分解的添加劑(例如催化劑,如氧化銅,氧化鐵和氧化鋁)。 Alternatively, or in addition to one or more binders, the combustible heat source used in the smoking article according to the present invention may include one or more additives to improve the characteristics of the combustible heat source. Suitable additives include, but are not limited to, additives that promote consolidation of the combustible heat source (e.g., sintering aids), additives that promote ignition of the combustible heat source (e.g., oxidants such as perchlorate, chlorate, nitrate , Peroxides, permanganates, zirconium, and combinations thereof), additives (e.g., potassium and potassium salts such as potassium citrate) that promote the combustion of the combustible heat source, and promote the combustion of one or more of the combustible heat sources to produce Additives for thermal decomposition of gases (eg catalysts such as copper oxide, iron oxide and aluminum oxide).

根據本發明之煙品,其包含一設置在該可燃熱源後表面上的屏障塗層,在把該屏障塗層施加至該可燃熱源後表面之前或之後,可將這類添加劑與該可燃熱源結合。 The smoking article according to the invention comprises a barrier coating provided on the rear surface of the combustible heat source, and such additives can be combined with the combustible heat source before or after the barrier coating is applied to the back surface of the combustible heat source. .

在某些最佳實施例中,該可燃熱源係一包含碳和至少一個點燃輔助的可燃碳質熱源。在一種較佳實施例中,該可燃熱源係一包含碳和至少一個點燃輔助的可燃碳質熱源,如在WO-A1-2012/164077中所述。 In some preferred embodiments, the combustible heat source is a combustible carbonaceous heat source containing carbon and at least one ignition aid. In a preferred embodiment, the combustible heat source is a combustible carbonaceous heat source containing carbon and at least one ignition aid, as described in WO-A1-2012 / 164077.

如本文所用,該術語「點燃輔助」係用來表示一在該可燃熱源點燃期間釋放能量和氧氣之一或二者的材料,其中該材料釋放能量和氧氣之一或二者的比率不受周圍氧氣擴散的限制。換句話說,在該可燃熱源點燃期間,釋放能量和氧氣之一或二者的比率很大程度上與周圍氧氣能到達該材料的比率無關。如本文所用,該術語「點燃輔助」也用來表示一在該可燃熱源點燃期間釋放能量的金屬元素,其中該金屬元素的點燃溫度低於大約500℃,且該金屬元素的燃燒加熱至少大約5千焦耳/公克。 As used herein, the term "ignition aid" is used to mean a material that releases one or both of energy and oxygen during the ignition of the combustible heat source, wherein the ratio of the material that releases one or both of energy and oxygen is not affected by the surroundings Limitation of oxygen diffusion. In other words, during the ignition of the combustible heat source, the ratio of one or both of the released energy and oxygen is largely independent of the rate at which the surrounding oxygen can reach the material. As used herein, the term "ignition aid" is also used to refer to a metal element that releases energy during the ignition of the combustible heat source, wherein the ignition temperature of the metal element is below about 500 ° C, and the combustion heating of the metal element is at least about 5 Kilojoules / g.

如本文所用,該術語「點燃輔助」不包含羧酸的鹼金屬鹽(如鹼金屬檸檬酸鹽、鹼金屬醋酸鹽、和鹼金屬琥珀酸鹽)、鹼金屬鹵化物鹽(如鹼金屬氯化物鹽)、鹼金屬碳酸鹽、或鹼金屬磷酸鹽,這些被認為可改變碳燃燒。即使當相對於該可燃熱源總重量,如燃燒的鹼金屬鹽存在大量時,在早期抽吸期間,這類燃燒的鹼金屬鹽在一可燃熱源點燃期間,無法釋放足夠的能量,以產生一可接受的氣溶膠。 As used herein, the term "ignition aid" does not include alkali metal salts of carboxylic acids (such as alkali metal citrate, alkali metal acetate, and alkali metal succinate), alkali metal halide salts (such as alkali metal chloride) Salts), alkali metal carbonates, or alkali metal phosphates, which are believed to alter carbon combustion. Even when there is a large amount of burning alkali metal salt relative to the total weight of the combustible heat source, during the early pumping period, such burning alkali metal salt cannot release enough energy to generate a combustible heat source during the ignition of a combustible heat source. Accepted aerosol.

合適氧化劑的範例包含,但不限於:硝酸鹽,如,例如,硝酸鉀、硝酸鈣、硝酸鍶、硝酸鈉、硝酸鋇、硝酸鋰、硝酸鋁、和硝酸鐵;亞硝酸鹽;其他有機和無 機硝基化合物;氯酸鹽,如,例如,氯酸鈉和氯酸鉀;高氯酸鹽,如,例如,高氯酸鈉;亞氯酸鹽;溴酸鹽,如,例如,溴酸鈉和溴酸鉀;過溴酸鹽;溴化物;硼酸鹽,如,例如,硼砂和硼酸鉀;鐵酸鹽,如,例如,高鐵酸鋇;鐵氧體;錳酸,如,例如,錳酸鉀;高錳酸鹽,如,例如,高錳酸鉀;有機過氧化物,如,例如,過氧化苯甲酰和過氧化丙酮;無機過氧化物,如,例如,過氧化氫、過氧化鍶、過氧化鎂、過氧化鈣、過氧化鋇、過氧化鋅、和過氧化鋰;超氧化物,如,例如,超氧化鉀和超氧化鈉;碘酸鹽;高碘;碘化物;硫酸鹽;亞硫酸鹽;其他亞碸;磷酸鹽;磷酸酯(phospinates);亞磷酸酯;和磷酸化合物(phosphanites)。 Examples of suitable oxidants include, but are not limited to: nitrates, such as, for example, potassium nitrate, calcium nitrate, strontium nitrate, sodium nitrate, barium nitrate, lithium nitrate, aluminum nitrate, and iron nitrate; nitrites; other organic and non- Organic nitro compounds; chlorates such as, for example, sodium chlorate and potassium chlorate; perchlorates such as, for example, sodium perchlorate; chlorites; bromates such as, for example, sodium bromate and Potassium bromate; perbromide; bromide; borate such as, for example, borax and potassium borate; ferrate such as, for example, barium ferrate; ferrite; manganate such as, for example, potassium manganate; high Manganates, such as, for example, potassium permanganate; organic peroxides, such as, for example, benzoyl peroxide and acetone peroxide; inorganic peroxides, such as, for example, hydrogen peroxide, strontium peroxide, peroxide Magnesium oxide, calcium peroxide, barium peroxide, zinc peroxide, and lithium peroxide; superoxides such as, for example, potassium superoxide and sodium superoxide; iodates; periodic iodine; iodides; sulfates; Sulfates; other sulfites; phosphates; phosphates; phosphites; and phosphates.

雖然有利地改善該可燃熱源的點燃和燃燒性能,但在使用該煙品期間,含有點燃和燃燒添加劑可引起不需要的熱分解和反應產物。例如,包含在該可燃熱源中,用以幫助該可燃熱源點燃之硝酸鹽的熱分解,可能導致氮氧化物的生成。 Although the ignition and combustion properties of the combustible heat source are advantageously improved, the inclusion of ignition and combustion additives during use of the smoking article can cause unwanted thermal decomposition and reaction products. For example, the inclusion of the combustible heat source to help the thermal decomposition of nitrates ignited by the combustible heat source may lead to the formation of nitrogen oxides.

在根據本發明之煙品包含一直通可燃熱源時,含有一在該一個或多個氣流通道和該直通可燃熱源之間的實質上不可燃不透氣屏障,在該吸入空氣通過該一個或多個氣流通道時,可有利地實質上防止或抑制這種熱分解和反應產物進入根據本發明之煙品的吸入空氣,穿過該一個或多個氣流通道。 When the smoking article according to the present invention includes a continuously combustible heat source, it includes a substantially non-combustible, air-impermeable barrier between the one or more airflow channels and the through combustible heat source, and the inhaled air passes through the one or more In the case of the air flow channels, it may be advantageous to substantially prevent or inhibit such thermal decomposition and reaction products from entering the inhaled air of the smoking article according to the invention through the one or more air flow channels.

含有一在該可燃熱源後表面和該氣溶膠形成基材之間的實質上不可燃不透氣屏障,也可有利地實質 上防止或抑制這種熱分解和反應產物進入根據本發明之煙品的吸入空氣。 It may also be advantageous to include a substantially non-flammable, air-impermeable barrier between the rear surface of the combustible heat source and the aerosol-forming substrate. This prevents or inhibits such thermal decomposition and reaction products from entering the inhaled air of the smoking article according to the present invention.

根據本發明之煙品使用的可燃碳質熱源可以現有技術所述來製備,該現有技術對於在本技術領域中的技術人員是已知的。 The combustible carbonaceous heat source used in the smoking article according to the present invention can be prepared as described in the prior art, which is known to those skilled in the art.

根據本發明之煙品使用的可燃碳質熱源,較佳地藉由一個或多個含碳材料與一個或多個黏合劑和其他添加劑之混合所形成,其中包含的,並藉由預先成型使該混合物成為一所需要的形狀。該一個或多個含碳材料、一個或多個黏合劑、及可選之其他添加劑的混合物,可以用任何合適的已知陶瓷成形方法,預先成型為一所需要的形狀,該成形方法如,例如,滑鑄、擠出、射出成型、和模壓實或模壓。在某些最佳實施例中,該混合物藉由模壓或擠壓或它們組合,預先成型為一所需要的形狀。 The combustible carbonaceous heat source used in the smoking article according to the present invention is preferably formed by mixing one or more carbonaceous materials with one or more binders and other additives, which are contained therein and are formed by pre-forming The mixture becomes a desired shape. The mixture of the one or more carbonaceous materials, one or more binders, and optionally other additives can be pre-formed into a desired shape using any suitable known ceramic forming method, such as, For example, slip casting, extrusion, injection molding, and compaction or compression. In some preferred embodiments, the mixture is pre-formed into a desired shape by molding or extrusion or a combination thereof.

較佳地,該一個或多個含碳材料、一個或多個黏合劑、及可選之其他添加劑的混合物,預先成形為一細長的桿。然而,應當理解的是該一個或多個含碳材料、一個或多個黏合劑、及可選之其他添加劑的混合物,可以是預先成形為其他所需要的形狀。 Preferably, the mixture of the one or more carbonaceous materials, one or more adhesives, and optionally other additives is preformed into an elongated rod. However, it should be understood that the mixture of the one or more carbonaceous materials, one or more adhesives, and optionally other additives may be pre-formed into other desired shapes.

成形之後,特別在擠出後,較佳地使該細長桿或其他所需要的形狀乾燥,以減少其水分含量,然後在溫度足以炭化該一個或多個黏合劑下,在非氧化大氣中熱分解,如果存在,並實質上消除在該細長桿或其他形狀中的任何揮發。較佳地該細長桿或其他所需要的形 狀在大約700℃和大約900℃之間的溫度下,在一氮氣空氣中熱分解。 After forming, particularly after extrusion, the elongated rod or other desired shape is preferably dried to reduce its moisture content, and then heated in a non-oxidizing atmosphere at a temperature sufficient to carbonize the one or more adhesives. Disintegrate, if present, and substantially eliminate any volatilization in the elongated rod or other shape. Preferably the elongated rod or other desired shape It is thermally decomposed in a nitrogen atmosphere at a temperature between about 700 ° C and about 900 ° C.

在某些實施例中,藉由包含至少一種在該一個或多個含碳材料、一個或多個黏合劑、及可選之其他添加劑的混合物中的金屬硝酸鹽前驅物,至少一種金屬硝酸鹽與該可燃熱源結合。然後藉由以一硝酸水溶液處理該預先成形圓柱桿或其他形狀的熱分解,該至少一種金屬硝酸鹽前驅物接著就地轉化成至少一種金屬硝酸鹽,在一實施例中,該可燃熱源包含至少一種具有一熱分解溫度小於大約600℃的金屬硝酸鹽,更佳地小於大約400℃。較佳地,至少一種金屬硝酸鹽具有一熱分解溫度在大約150℃和大約600℃之間,更佳地在大約200℃和大約400℃之間。 In some embodiments, by including at least one metal nitrate precursor in a mixture of the one or more carbonaceous materials, one or more binders, and optionally other additives, at least one metal nitrate Combined with this combustible heat source. The at least one metal nitrate precursor is then converted in situ into at least one metal nitrate by treating the preformed cylindrical rod or other shape with a nitric acid aqueous solution. In one embodiment, the combustible heat source includes at least A metal nitrate having a thermal decomposition temperature of less than about 600 ° C, and more preferably less than about 400 ° C. Preferably, the at least one metal nitrate has a thermal decomposition temperature between about 150 ° C and about 600 ° C, more preferably between about 200 ° C and about 400 ° C.

在較佳實施例中,該可燃熱源接觸到一傳統的黃焰打火機或其他點燃裝置應該引起至少一種金屬硝酸鹽熱分解,與釋放氧氣和能量。這熱分解造成該可燃熱源溫度的初始升高,並也有助於該可燃熱源的點燃。在至少一種金屬硝酸鹽熱分解後,較佳地該可燃熱源繼續在較低的溫度燃燒。 In a preferred embodiment, the contact of the combustible heat source with a conventional yellow flame lighter or other ignition device should cause thermal decomposition of at least one metal nitrate, and release oxygen and energy. This thermal decomposition causes an initial increase in the temperature of the combustible heat source and also contributes to the ignition of the combustible heat source. After the thermal decomposition of at least one metal nitrate, the combustible heat source preferably continues to burn at a lower temperature.

含有至少一種金屬硝酸鹽有利地造成該可燃熱源內部引發點燃,而不僅在該可燃熱源表面上某一點。較佳地,依該可燃熱源乾重,該至少一種金屬硝酸鹽存在於該可燃熱源中的量在大約20%和大約50%之間。 Containing at least one metal nitrate advantageously causes ignition within the combustible heat source, not only at a point on the surface of the combustible heat source. Preferably, based on the dry weight of the combustible heat source, the amount of the at least one metal nitrate present in the combustible heat source is between about 20% and about 50%.

在其他實施例中,該可燃熱源包含至少一種過氧化物或超氧化物,該過氧化物或超氧化物在溫度低於大約600℃下氧化活躍,更佳地溫度低於大約400℃。 In other embodiments, the combustible heat source comprises at least one peroxide or superoxide, the peroxide or superoxide being oxidatively active at a temperature below about 600 ° C, more preferably a temperature below about 400 ° C.

較佳地,該至少一種過氧化物或超氧化物在溫度大約150℃和大約600℃之間氧化活躍,更佳地在溫度大約200℃和大約400℃之間,最佳地在溫度大約350℃。 Preferably, the at least one peroxide or superoxide is oxidatively active at a temperature between about 150 ° C and about 600 ° C, more preferably between about 200 ° C and about 400 ° C, and most preferably at a temperature of about 350 ° C. ℃.

在使用時,該可燃熱源接觸到一傳統的黃焰打火機或其他點燃裝置應該引起至少一種過氧化物或超氧化物熱分解和釋放氧氣。這造成該可燃熱源溫度的初始升高,並也有助於該可燃熱源的點燃。在至少一種過氧化物或超氧化物熱分解後,較佳地該可燃熱源繼續在較低的溫度燃燒。 In use, the combustible heat source contacting a traditional yellow flame lighter or other ignition device should cause at least one peroxide or superoxide to thermally decompose and release oxygen. This causes an initial increase in the temperature of the combustible heat source and also contributes to the ignition of the combustible heat source. After thermal decomposition of at least one peroxide or superoxide, it is preferred that the combustible heat source continue to burn at a lower temperature.

含有至少一種過氧化物或超氧化物有利地造成該可燃熱源內部引發點燃,而不僅在該可燃熱源表面上某一點。 Containing at least one peroxide or superoxide advantageously causes ignition within the combustible heat source, not only at a point on the surface of the combustible heat source.

較佳地該可燃熱源具有在大約20%和大約80%之間的孔隙率,更佳地在大約20%和60%之間。在該可燃熱源包含至少一種金屬硝酸鹽時,當該至少一種金屬硝酸鹽進行熱分解和燃燒時,這有利地允許氧氣在一足以維持燃燒的速率下,擴散到了該可燃熱源的大部分。更佳地,該可燃熱源具有在大約50%和大約70%之間的孔隙率,更佳地藉由,例如,壓汞式孔隙儀法或氦比重測定法測量,在大約50%和大約60%之間。在生產該可燃熱源期間,採用傳統方法和技術,可以很容易獲得所需要的孔隙率。 Preferably the combustible heat source has a porosity between about 20% and about 80%, more preferably between about 20% and 60%. When the combustible heat source contains at least one metal nitrate, this advantageously allows oxygen to diffuse to a large portion of the combustible heat source at a rate sufficient to sustain combustion when the at least one metal nitrate undergoes thermal decomposition and combustion. More preferably, the combustible heat source has a porosity between about 50% and about 70%, and is more preferably measured by, for example, a mercury intrusion porosimeter or a helium specific gravity method, at about 50% and about 60 %between. During the production of this combustible heat source, the required porosity can be easily obtained using conventional methods and techniques.

有利地,根據本發明之煙品使用的可燃碳質熱源具有明顯的密度在大約0.6公克/立方厘米和大約1公克/立方厘米之間。 Advantageously, the combustible carbonaceous heat source used in the smoking article according to the present invention has a significant density between about 0.6 g / cm3 and about 1 g / cm3.

較佳地,該可燃熱源具有質量在大約300毫克和大約500毫克之間,更佳地在大約400毫克和大約450毫克之間。 Preferably, the combustible heat source has a mass between about 300 mg and about 500 mg, more preferably between about 400 mg and about 450 mg.

較佳地,該可燃熱源具有長度在大約7毫米和大約17毫米之間,更佳地在大約7毫米和大約15毫米之間,最佳地在大約7毫米和大約13毫米之間。 Preferably, the combustible heat source has a length between about 7 mm and about 17 mm, more preferably between about 7 mm and about 15 mm, and most preferably between about 7 mm and about 13 mm.

較佳地,該可燃熱源具有直徑在大約5毫米和大約9公厘之間,更佳地在大約7毫米和大約8毫米之間。 Preferably, the combustible heat source has a diameter between about 5 mm and about 9 mm, and more preferably between about 7 mm and about 8 mm.

較佳地,該可燃熱源係實質上均勻直徑。然而,該可燃熱源可替代地是錐形,使得該非直通可燃熱源後部分的直徑大於該非直通可燃熱源前部分的直徑。特別佳地,可燃熱源是實質上圓柱體。該可燃熱源可能,例如,是一實質上圓形橫截面的圓柱體或圓錐筒,或一實質上橢圓形橫截面的圓柱體或圓錐筒。 Preferably, the combustible heat source has a substantially uniform diameter. However, the combustible heat source may alternatively be tapered such that the diameter of the rear portion of the indirect combustible heat source is greater than the diameter of the front portion of the indirect combustible heat source. Particularly preferably, the combustible heat source is a substantially cylindrical body. The combustible heat source may be, for example, a cylinder or cone with a substantially circular cross section, or a cylinder or cone with a substantially elliptical cross section.

根據本發明之煙品較佳地包含一氣溶膠形成基材,該氣溶膠形成基材包含至少一個氣溶膠形成物和一能夠回應加熱而釋放揮發性化合物的材料。該氣溶膠形成基材可包含其他添加劑和成分,包含,但不限於,保濕劑、香料、黏合劑、和它們的混合物。 The smoking article according to the present invention preferably includes an aerosol-forming substrate including at least one aerosol-forming substance and a material capable of releasing volatile compounds in response to heating. The aerosol-forming substrate may include other additives and ingredients including, but not limited to, humectants, fragrances, adhesives, and mixtures thereof.

較佳地,該氣溶膠形成基材包含尼古丁。更佳地,該氣溶膠形成基材包含煙草。 Preferably, the aerosol-forming substrate comprises nicotine. More preferably, the aerosol-forming substrate comprises tobacco.

該至少一個氣溶膠形成物可以是任何合適的已知化合物或化合物的混合物。在使用時,有利於形成一濃厚和穩定的氣溶膠,且實質上在該煙品的工作溫度能抵抗熱降解。合適的氣溶膠形成物在該技術領域中是眾所周知,並包含,例如,多元醇、多元醇酯,如單乙酸甘油酯、二乙酸甘油酯、或三乙酸甘油酯,和單羧酸的脂族酯、二羧酸的脂族酯、和多羧酸的脂族酯,如二甲基十二烷二和二甲基十四烷。根據本發明之煙品使用的較佳氣溶膠形成物是多元醇或它們的混合物,如三甘醇、1,3-丁二醇,以及最佳的甘油。 The at least one aerosol former may be any suitable known compound or mixture of compounds. In use, it is beneficial to form a thick and stable aerosol, and it is substantially resistant to thermal degradation at the working temperature of the cigarette. Suitable aerosol formers are well known in the art and include, for example, polyols, polyol esters such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate, and aliphatic monocarboxylic acids Esters, aliphatic esters of dicarboxylic acids, and aliphatic esters of polycarboxylic acids such as dimethyldodecanedi and dimethyltetradecane. The preferred aerosol formers for the smoking articles according to the present invention are polyols or mixtures thereof, such as triethylene glycol, 1,3-butanediol, and most preferably glycerol.

該能夠回應加熱而釋放揮發性化合物的材料可以是一以植物為主的材料。該能夠回應加熱而釋放揮發性化合物的材料可以是一以均質植物為主的材料。例如,該氣溶膠形成基材可包含一個或多個從植物中提取的材料,包含,但不限於:煙草;茶葉,例如綠茶;薄荷;月桂;桉樹;羅勒;鼠尾草;馬鞭草;和香艾菊。 The material capable of releasing volatile compounds in response to heating may be a plant-based material. The material capable of releasing volatile compounds in response to heating may be a material mainly composed of a homogeneous plant. For example, the aerosol-forming substrate may include one or more materials extracted from plants, including, but not limited to: tobacco; tea, such as green tea; mint; laurel; eucalyptus; basil; sage; verbena; and incense Tansy.

較佳地,該能夠回應加熱而釋放揮發性化合物的材料可以是一以煙草為主的材料,最佳地是一以均質煙草為主的材料。 Preferably, the material capable of releasing volatile compounds in response to heating may be a tobacco-based material, and most preferably a homogeneous tobacco-based material.

該氣溶膠形成基材可以是一插栓或區段形式,該插栓或區段包含一藉由一紙或其他捲紙包圍並能夠回應加熱而釋放揮發性化合物的材料。如上所述,在一氣溶膠形成基材係這類插栓或區段形式時,該包含任何捲紙的整個插栓或區段被視為該氣溶膠形成基材。 The aerosol-forming substrate may be in the form of a plug or segment that includes a material surrounded by a paper or other rolled paper and capable of releasing volatile compounds in response to heating. As mentioned above, when an aerosol-forming substrate is in the form of such a plug or segment, the entire plug or segment including any roll paper is considered to be the aerosol-forming substrate.

較佳地,該氣溶膠形成基材具有長度在大約5毫米和大約20毫米之間,更佳地在大約8毫米和大約12毫米之間。 Preferably, the aerosol-forming substrate has a length between about 5 mm and about 20 mm, and more preferably between about 8 mm and about 12 mm.

在優先實施例中,該氣溶膠形成基材包含一包裹在一插栓包覆物中之煙草為主材料的插栓。特別地佳實施例,該氣溶膠形成基材包含一包裹在一插栓包覆物中之均質煙草為主材料的插栓。 In a preferred embodiment, the aerosol-forming substrate includes a plug of tobacco-based material wrapped in a plug cover. In a particularly preferred embodiment, the aerosol-forming substrate comprises a plug of homogeneous tobacco-based material wrapped in a plug cover.

根據本發明之煙品較佳地包含一在該氣溶膠形成基材下游的煙嘴。該煙嘴位於該煙品的近端。 The smoking article according to the present invention preferably includes a cigarette holder downstream of the aerosol-forming substrate. The cigarette holder is located at the proximal end of the cigarette.

較佳地,該煙嘴係低過濾效率,更佳地係非常低的過濾效率。該煙嘴可以是一單一區段或組件煙嘴。替代地,該煙嘴可以是一多區段或多組件煙嘴。 Preferably, the cigarette holder has a low filtering efficiency, and more preferably a very low filtering efficiency. The mouthpiece may be a single section or a component mouthpiece. Alternatively, the cigarette holder may be a multi-segment or multi-component cigarette holder.

該煙嘴可包含一過濾器,該過濾器包含一個或多個包含合適之已知過濾材料的區段。合適的過濾材料在本技術領域中是已知的,並包含,但不限於,醋酸纖維素和紙。替代地或另外地,該煙嘴可包含一個或多個包含吸收劑、吸附劑、香料、及其他氣溶膠改良劑和添加劑、或它們組合的區段。 The cigarette holder may contain a filter comprising one or more sections containing suitable known filter materials. Suitable filter materials are known in the art and include, but are not limited to, cellulose acetate and paper. Alternatively or in addition, the cigarette holder may include one or more segments containing absorbents, adsorbents, perfumes, and other aerosol modifiers and additives, or combinations thereof.

根據該元件之煙品較佳地進一步包含一在該氣溶膠形成基材和該煙嘴之間的傳遞元件或隔離元件。 The smoking article according to the element preferably further includes a transmission element or an isolation element between the aerosol-forming substrate and the cigarette holder.

該傳遞元件可鄰接該氣溶膠形成基材和該煙嘴之一或二者。替代地,該傳遞元件可與該氣溶膠形成基材和該煙嘴之一或二者隔開。 The transfer element may abut one or both of the aerosol-forming substrate and the cigarette holder. Alternatively, the transfer element may be spaced from one or both of the aerosol-forming substrate and the cigarette holder.

含有一傳遞元件有利地允許藉由從該可燃熱源熱傳遞至該氣溶膠形成基材產生的該氣溶膠冷卻。含 有一傳遞元件也有利地允許根據本發明之煙品總長度調整到一所需要的值,例如,透過該傳遞元件長度的適當選擇,調整到類似傳統香煙的長度。 The inclusion of a transfer element advantageously allows cooling of the aerosol generated by heat transfer from the combustible heat source to the aerosol-forming substrate. With Having a transmission element also advantageously allows the total length of the smoking article according to the present invention to be adjusted to a desired value, for example, by a suitable selection of the length of the transmission element, to a length similar to a conventional cigarette.

該傳遞元件可具有長度在大約7毫米和大約50毫米之間,例如長度在大約10毫米和大約45毫米之間,或在大約15毫米和大約30m之間。根據在該煙品內該煙品及其他組件存在和長度所需要的總長度,該傳遞元件可能具有其他長度。 The transfer element may have a length between about 7 mm and about 50 mm, such as a length between about 10 mm and about 45 mm, or between about 15 mm and about 30 m. The transfer element may have other lengths based on the total length required for the presence and length of the cigarette and other components within the cigarette.

較佳地,該傳遞元件包含至少一個開放式管狀中空體。在這類實施例中,在使用時,當該穿過該煙品的吸入空氣從該氣溶膠形成基材到該煙品近端,往下游通過該煙品時,該吸入空氣通過該至少一個開放式管狀中空體。 Preferably, the transfer element comprises at least one open tubular hollow body. In such embodiments, in use, when the inhaled air passing through the smoking article passes from the aerosol-forming substrate to the proximal end of the smoking article and passes downstream through the smoking article, the inhaled air passes through the at least one Open tubular hollow body.

該傳遞元件可包含至少一個從一個或多個合適材料形成的開放式管狀中空體,在藉由從該可燃熱源熱傳導到該氣溶膠形成基材產生的該氣溶膠溫度上,該等合適材料實質上是熱穩定。合適的材料在本技術領域中是已知的,並包含,但不限於,紙、紙板、塑膠,例如醋酸纖維素、陶瓷、和它們的組合。 The transfer element may include at least one open tubular hollow body formed from one or more suitable materials. At the aerosol temperature generated by heat conduction from the combustible heat source to the aerosol-forming substrate, the suitable materials are substantially It is thermally stable. Suitable materials are known in the art and include, but are not limited to, paper, cardboard, plastics, such as cellulose acetate, ceramics, and combinations thereof.

替代地或另外地,根據本發明之煙品可包含一在該氣溶膠形成基材和該煙嘴之間的氣溶膠冷卻元件或熱交換器。該氣溶膠冷卻元件可包含複數個縱向延伸通道。 Alternatively or in addition, the smoking article according to the present invention may include an aerosol cooling element or heat exchanger between the aerosol-forming substrate and the mouthpiece. The aerosol cooling element may include a plurality of longitudinally extending channels.

該氣溶膠冷卻元件可包含一聚集的材料薄片,該材料薄片從金屬箔、聚合材料、和實質上非多孔 紙或紙板所組成的群組中選擇。在某些實施例中,該氣溶膠冷卻元件可包含一聚集的材料薄片,該材料薄片從聚乙烯(PE)、聚丙烯(PP)、聚氯乙烯(PVC)、聚對苯二甲酸乙二醇酯(PET)、聚乳酸(PLA)、醋酸纖維素(CA)、和鋁箔所組成的群組中選擇。 The aerosol cooling element may include an aggregated sheet of material from a metal foil, a polymeric material, and a substantially non-porous material. Choose from a group of paper or cardboard. In some embodiments, the aerosol cooling element may include an aggregated sheet of material from polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate Select from the group consisting of alcohol ester (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil.

在某些最佳實施例中,該氣溶膠冷卻元件可包含一可生物降解聚合物材料的聚集薄片,如聚乳酸(PLA)、或Mater-Bi®等級(市售於家庭的澱粉類共聚酯)。 In certain preferred embodiments, the aerosol cooling element may comprise an aggregated sheet of a biodegradable polymer material, such as polylactic acid (PLA), or a Mater-Bi® grade (commercially available starch-based copolymers) ester).

根據本發明之煙品可包含一個或多個在該氣溶膠形成基材下游的氣溶膠改良劑。例如,根據本發明之煙品的該煙嘴、傳遞元件、和氣溶膠冷卻元件之一個或多個可包含一個或多個氣溶膠改良劑。 The smoking article according to the present invention may comprise one or more aerosol modifiers downstream of the aerosol-forming substrate. For example, one or more of the mouthpiece, the transfer element, and the aerosol cooling element of the smoking article according to the present invention may contain one or more aerosol modifiers.

合適的氣溶膠改良劑包含,但不限於:香料;和化學美感劑(chemesthetic agent)。 Suitable aerosol modifiers include, but are not limited to: perfumes; and chemesthetic agents.

如本文所用,該術語「香料」係用來描述,在使用時,賦予藉由該煙品之氣溶膠形成基材產生的氣溶膠味道或香氣之一或二者的任何試劑。 As used herein, the term "fragrance" is used to describe any agent that, when used, imparts one or both of the aerosol flavor or aroma produced by the aerosol-forming substrate of the smoking article.

如本文所用,該術語「化學美感劑」係用來描述,在使用時,使一使用者口腔或嗅覺腔有感知的任何試劑,該感知借助不同於經由味覺受體或嗅覺受體細胞感知的其他方式,或另外的方式。化學美感劑的感知通常經由一「三叉神經反應」,是經由該三叉神經、舌咽神經、迷走神經,或是經由這些的某種組合。通常,化學美感劑被認為是熱的、辛辣的、清涼的、或舒緩感覺。 As used herein, the term "chemical esthetic agent" is used to describe, when used, any agent that perceives the mouth or olfactory cavity of a user by means other than those sensed by taste receptors or olfactory receptor cells. Other ways, or another way. Chemoesthetics are usually sensed through a "trigeminal response," via the trigeminal nerve, glossopharyngeal nerve, vagus nerve, or some combination of these. Generally, chemical aesthetics are considered hot, spicy, cool, or soothing.

根據本發明之煙品可包含一個或多個在該氣溶膠形成基材下游的氣溶膠改良劑,該氣溶膠改良劑既是一香料,也是一化學美感劑。例如,根據本發明之煙品的該煙嘴、傳遞元件、和氣溶膠冷卻元件之一個或多個可包含薄荷或可提供清涼化學美感效果的其他香料。 The smoking article according to the present invention may include one or more aerosol modifiers downstream of the aerosol-forming substrate. The aerosol modifier is both a perfume and a chemical aesthetic agent. For example, one or more of the cigarette holder, the transfer element, and the aerosol cooling element of the smoking article according to the present invention may contain mint or other flavors that may provide a cooling chemical aesthetic effect.

根據本發明之煙品可使用已知的方法和機械組裝。 The smoking article according to the invention can be assembled using known methods and machinery.

2‧‧‧煙品 2‧‧‧ Tobacco

4‧‧‧可燃熱源 4‧‧‧ Combustible heat source

6‧‧‧前表面 6‧‧‧ front surface

8‧‧‧後表面 8‧‧‧ rear surface

10‧‧‧氣溶膠形成基材 10‧‧‧ aerosol-forming substrate

12‧‧‧傳遞元件 12‧‧‧ transfer element

14‧‧‧氣溶膠冷卻元件 14‧‧‧ aerosol cooling element

16‧‧‧隔離元件 16‧‧‧Isolation element

18‧‧‧煙嘴 18‧‧‧ cigarette holder

20‧‧‧外捲紙 20‧‧‧ roll paper

22‧‧‧屏障 22‧‧‧ barrier

24‧‧‧均質煙草類材料 24‧‧‧ homogeneous tobacco materials

26‧‧‧插栓包覆物 26‧‧‧ Plug Cover

28‧‧‧圓柱形開放式中,空醋酸纖維素管 28‧‧‧ cylindrical open, hollow cellulose acetate tube

30‧‧‧圓柱形開放式中空紙或紙板管 30‧‧‧ cylindrical open hollow paper or cardboard tube

32‧‧‧過濾材料 32‧‧‧Filter material

34‧‧‧插栓包覆物 34‧‧‧ Plug Cover

36‧‧‧單一導熱元件 36‧‧‧Single thermal conductive element

38‧‧‧捲紙 38‧‧‧ roll paper

40‧‧‧第一進氣口 40‧‧‧first air inlet

42‧‧‧煙品 42‧‧‧ Tobacco

44‧‧‧氣流通道 44‧‧‧airflow channel

46‧‧‧實質上不可燃不透氣屏障 46‧‧‧ Substantially non-combustible airtight barrier

僅藉由範例方式,本發明將進一步參照附圖說明,其中:第1圖顯示根據本發明之第一實施例煙品的縱向剖面示意圖。第2圖顯示根據本發明之第三實施例煙品的縱向剖面示意圖。第3a圖顯示根據本發明煙品在抽煙期間之可燃熱源後部分的溫度圖。第3b圖顯示根據本發明煙品在抽煙期間之氣溶膠產生基材的溫度圖。 By way of example only, the present invention will be further described with reference to the accompanying drawings, wherein: FIG. 1 shows a schematic longitudinal sectional view of a smoking article according to a first embodiment of the present invention. Fig. 2 is a schematic longitudinal sectional view of a smoking article according to a third embodiment of the present invention. Fig. 3a shows a temperature diagram of a portion of a smoking article according to the present invention after a combustible heat source during smoking. Figure 3b shows a temperature map of an aerosol-generating substrate of a smoking article during smoking according to the present invention.

根據第1圖所示本發明第一實施例之該煙品2包含以同軸對準鄰接的一具有一前表面6和一相對地後表面8之非直通可燃熱源4、一氣溶膠形成基材10、一傳遞元件12、一氣溶膠冷卻元件14、一隔離元件16、及一煙嘴18。 The smoking article 2 according to the first embodiment of the present invention shown in FIG. 1 includes a non-through combustible heat source 4 with a front surface 6 and an opposite rear surface 8 and an aerosol-forming substrate 10 adjacent to each other in coaxial alignment. , A transmission element 12, an aerosol cooling element 14, an isolation element 16, and a cigarette holder 18.

該非直通可燃熱源4係一非直通碳質可燃熱源,並位於該煙品2的遠端。如第1圖所示,一以一鋁箔圓盤形式的實質上不可燃不透氣屏障22設置在該非直通可燃熱源4的後表面8和該氣溶膠形成基材10之間。藉由按壓該鋁箔圓盤到該非直通可燃熱源4之後表面8上,使該屏障22施加至該非直通可燃熱源4之後表面8,且鄰接於該非直通可燃熱源4之後表面8和該氣溶膠形成基材10。 The non-through combustible heat source 4 is a non-through carbon combustible heat source, and is located at the far end of the cigarette 2. As shown in FIG. 1, a substantially non-combustible air-impermeable barrier 22 in the form of an aluminum foil disc is disposed between the rear surface 8 of the non-through combustible heat source 4 and the aerosol-forming substrate 10. By pressing the aluminum foil disc onto the rear surface 8 of the non-through combustible heat source 4, the barrier 22 is applied to the rear surface 8 of the non-through combustible heat source 4 and adjacent to the rear surface 8 of the non-through combustible heat source 4 and the aerosol-forming substrate.材 10。 Material 10.

在本發明其他實施例中(未顯示),在該非直通可燃熱源4之後表面8和該氣溶膠形成基材10之間的該實質上不可燃不透氣屏障22可省略。 In other embodiments of the present invention (not shown), the substantially non-flammable and air-impermeable barrier 22 between the surface 8 and the aerosol-forming substrate 10 after the non-through combustible heat source 4 may be omitted.

該氣溶膠形成基材10係緊接地位於該施加至該非直通可燃熱源4後表面8的屏障22之下游。該氣溶膠形成基材10包含一均質煙草類材料24的圓柱形插栓,該材料包含一包裹在插栓包覆物26中的氣溶膠形成物,如,例如甘油。 The aerosol-forming substrate 10 is located immediately downstream of the barrier 22 applied to the rear surface 8 of the non-through combustible heat source 4. The aerosol-forming substrate 10 includes a cylindrical plug of a homogeneous tobacco-like material 24 that includes an aerosol-forming material, such as, for example, glycerol, enclosed in a plug cover 26.

該傳遞元件12係該氣溶膠形成基材10之下游,和包含一圓柱形開放式中空醋酸纖維素管28。 The transmission element 12 is downstream of the aerosol-forming substrate 10 and includes a cylindrical open hollow cellulose acetate tube 28.

該氣溶膠冷卻元件14係緊接地位於該傳遞元件12之下游,和包含一可生物降解之高分子材料的聚集薄片,該材料如,例如聚乳酸。 The aerosol cooling element 14 is located immediately downstream of the transfer element 12 and an aggregated sheet containing a biodegradable polymer material such as, for example, polylactic acid.

該隔離元件16係緊接地位於該氣溶膠冷卻元件14之下游,和包含一圓柱形開放式中空紙或紙板管30。 The isolation element 16 is located immediately downstream of the aerosol cooling element 14 and includes a cylindrical open hollow paper or cardboard tube 30.

該煙嘴18係緊接地位於該隔離元件16之下游。如第1圖所示,該煙嘴18位於該煙品2的近端,和包含一合適過濾材料32的圓柱形插栓,該材料包裹在過濾插栓包覆物34中,該材料如,例如是非常低過濾效率的醋酸纖維素絲束。 The cigarette holder 18 is located immediately downstream of the isolation element 16. As shown in FIG. 1, the cigarette holder 18 is located at the proximal end of the smoking article 2 and a cylindrical plug containing a suitable filter material 32 is wrapped in a filter plug cover 34 such as, for example, It is a cellulose acetate tow with very low filtration efficiency.

該煙品可進一步包含一接裝紙帶(未顯示),包圍該外捲紙20的一下游端部分。 The smoking article may further include a tipping paper tape (not shown) surrounding a downstream end portion of the outer roll paper 20.

如第1圖所示,該煙品2進一步包含一合適材料的單一導熱元件36,如,例如,鋁箔。該導熱元件覆蓋該非直通可燃熱源4的一後部分、該氣溶膠形成基材10的全長、和該傳遞元件12的全長。 As shown in FIG. 1, the smoking article 2 further comprises a single thermally conductive element 36 of a suitable material, such as, for example, aluminum foil. The thermally conductive element covers a rear portion of the non-through combustible heat source 4, the entire length of the aerosol-forming substrate 10, and the entire length of the transmission element 12.

在本發明其他實施例中(未顯示),該傳遞元件12可在下游方向延伸超過該單一導熱元件36。即該單一導熱元件36可只覆蓋該傳遞元件12的前部分。在本發明其他實施例中(未顯示),該單一導熱元件36可不覆蓋任何的該傳遞元件12。 In other embodiments of the present invention (not shown), the transmission element 12 may extend beyond the single thermally conductive element 36 in a downstream direction. That is, the single heat-conducting element 36 may cover only the front portion of the transmission element 12. In other embodiments of the present invention (not shown), the single heat-conducting element 36 may not cover any of the transmission elements 12.

在本發明進一步實施例中(未顯示),該氣溶膠形成基材10可在下游方向延伸超過該單一導熱元件36。即該單一導熱元件36可只覆蓋該氣溶膠形成基材10的前部分。 In a further embodiment of the invention (not shown), the aerosol-forming substrate 10 may extend beyond the single thermally conductive element 36 in a downstream direction. That is, the single thermally conductive element 36 may cover only the front portion of the aerosol-forming substrate 10.

藉由一低透氣性之隔熱薄片材料的捲紙38,如,例如,香煙紙,該單一導熱元件36係與該非直通可燃熱源4和該氣溶膠形成基材10徑向分離,該捲紙包裹該氣溶膠形成基材10、傳遞元件12、和該非直通可燃熱源4之後部分的周圍。 With a roll paper 38 of a low-permeability heat-insulating sheet material, such as, for example, cigarette paper, the single thermally conductive element 36 is radially separated from the non-through combustible heat source 4 and the aerosol-forming substrate 10, the roll paper The aerosol-forming substrate 10, the transfer element 12, and the periphery of the non-through combustible heat source 4 are enclosed.

根據第1圖所示本發明第一實施例的該煙品2,該單一導熱元件36和該捲紙38在上游方向延伸到該非直通可燃熱源4上的大約相同位置,以使得該單一導熱元件36和該捲紙38的上游端實質上對準超過該非直通可燃熱源4。該捲紙38使該單一導熱元件36與該非直通可燃熱源4和該氣溶膠形成基材10徑向分離。 According to the smoking article 2 of the first embodiment of the present invention shown in FIG. 1, the single thermally conductive element 36 and the roll paper 38 extend in the upstream direction to approximately the same position on the non-through combustible heat source 4, so that the single thermally conductive element 36 and the upstream end of the roll paper 38 are substantially aligned beyond the non-through combustible heat source 4. The roll paper 38 radially separates the single thermally conductive element 36 from the non-through combustible heat source 4 and the aerosol-forming substrate 10.

然而,應當理解的是在本發明其他實施例中(未顯示),使該單一導熱元件36係與該非直通可燃熱源4和該氣溶膠形成基材10徑向分離的該捲紙38可在上游方向延伸超過該單一導熱元件36。 It should be understood, however, that in other embodiments of the present invention (not shown), the roll paper 38 that radially separates the single thermally conductive element 36 from the non-through combustible heat source 4 and the aerosol-forming substrate 10 may be upstream. The direction extends beyond the single thermally conductive element 36.

根據本發明第一實施例的該煙品2包含一個或多個圍繞該氣溶膠形成基材10周邊的第一進氣口40。 The smoking article 2 according to the first embodiment of the present invention includes one or more first air inlets 40 surrounding the periphery of the aerosol-forming substrate 10.

如第1圖中所示,一圓周排列的第一進氣口40設置在該氣溶膠形成基材10的插栓包覆物26、使該單一導熱元件36與該非直通可燃熱源4和該氣溶膠形成基材10徑向分離的該捲紙38、和該單一導熱元件36中,以容許清涼空氣(如第1圖中虛線箭頭所示)進入該氣溶膠形成基材10。 As shown in FIG. 1, a circumferentially arranged first air inlet 40 is disposed on the plug covering 26 of the aerosol-forming substrate 10, so that the single heat-conducting element 36 and the non-through combustible heat source 4 and the gas The roll paper 38 and the single heat-conducting element 36 separated radially from the sol-forming substrate 10 allow cool air (shown by a dashed arrow in FIG. 1) to enter the aerosol-forming substrate 10.

在使用時,根據本發明第一實施例,一使用者點燃該煙品2的非直通可燃熱源4,並在該煙嘴18上吸氣。當一使用者在該煙嘴18上吸氣時,清涼空氣(如第1圖中虛線箭頭所示)穿過該等第一進氣口40被吸入該煙品2的氣溶膠形成基材10。 In use, according to the first embodiment of the present invention, a user ignites the non-through combustible heat source 4 of the cigarette 2 and inhales on the cigarette holder 18. When a user inhales on the cigarette holder 18, cool air (as shown by the dashed arrow in the first figure) passes through the first air inlets 40 and is sucked into the aerosol-forming substrate 10 of the cigarette 2.

該氣溶膠形成基材10的前部分藉由穿過該非直通可燃熱源4之後表面8和該屏障22的熱傳導來加熱。 The front part of the aerosol-forming substrate 10 is heated by heat conduction through the surface 8 and the barrier 22 after passing through the non-through combustible heat source 4.

藉由熱傳導對該氣溶膠形成基材10的加熱,從該均質煙草類材料24的插栓釋放甘油及其他揮發性和半揮發性化合物,該等從該氣溶膠形成基材10釋放的化合物形成一氣溶膠。當該氣溶膠流過該氣溶膠形成基材10時,該氣溶膠被夾帶在空氣中,該空氣穿過該等第一進氣口40被吸入該煙品2之氣溶膠形成基材10。該吸入的空氣和夾帶的氣溶膠(如第1和2圖中虛線箭頭所示)往下游通過該傳遞元件12、氣溶膠冷卻元件14、和隔離元件16,在此冷卻和冷凝。根據本發明第一實施例,該冷卻的吸入空氣和夾帶的氣溶膠往下游通過該煙嘴18,並穿過該煙品2的近端,輸送至該使用者。在該非直通可燃熱源4後表面8上的該實質上不可燃不透氣屏障22將該非直通可燃熱源4與穿過該煙品2吸入的空氣隔離,使得在使用時,穿過該煙品2吸入的空氣不直接接觸到該非直通可燃熱源4。 By heating the aerosol-forming substrate 10 by heat conduction, glycerin and other volatile and semi-volatile compounds are released from the plug of the homogeneous tobacco-like material 24, and the compounds released from the aerosol-forming substrate 10 are formed. An aerosol. When the aerosol flows through the aerosol-forming substrate 10, the aerosol is entrained in the air, and the air is drawn into the aerosol-forming substrate 10 of the smoking article 2 through the first air inlets 40. The inhaled air and entrained aerosol (as indicated by the dashed arrows in Figures 1 and 2) pass downstream through the transfer element 12, aerosol cooling element 14, and isolation element 16, where they are cooled and condensed. According to the first embodiment of the present invention, the cooled inhaled air and entrained aerosol pass downstream through the mouthpiece 18 and pass through the proximal end of the cigarette 2 to the user. The substantially non-combustible air-impermeable barrier 22 on the rear surface 8 of the non-through combustible heat source 4 isolates the non-through combustible heat source 4 from the air drawn through the smoking article 2 so that, when in use, it is sucked through the smoking article 2 The air is not in direct contact with the indirect combustible heat source 4.

在使用時,該單一導熱元件36保持熱能於該煙品2內,以幫助維持該氣溶膠形成基材10的溫度,從而有助於繼續和加強氣溶膠輸送。此外,該單一導熱元件36沿該氣溶膠熱形成基材10傳熱,使得熱能分散穿過一較大體積的該氣溶膠形成基材10。這有助於提供一較為一致的逐次抽吸之氣溶膠輸送。 In use, the single thermally conductive element 36 maintains thermal energy in the smoking article 2 to help maintain the temperature of the aerosol-forming substrate 10, thereby helping to continue and enhance the aerosol transport. In addition, the single heat-conducting element 36 transfers heat along the aerosol-forming substrate 10, so that thermal energy is dispersed through a larger volume of the aerosol-forming substrate 10. This helps provide a more consistent aerosol delivery of successive aspirates.

根據本發明第二實施例的一煙品(未顯示)係與根據第1圖所示本發明第一實施例的該煙品之基本上結構相同。然而,在根據本發明第二實施例的該煙品中,使該單一導熱元件36與該非直通可燃熱源4和該氣溶膠 形成基材10徑向分離的該捲紙38係省略,且該單一導熱元件36由一貼合材料形成,該貼合材料包含一導熱材料的外層和一隔熱材料的內層。在根據本發明第二實施例的該煙品中,藉由該單一導熱元件36的隔熱層材料內層,該單一導熱元件36的導熱材料外層與該非直通可燃熱源4和該氣溶膠形成基材10徑向分離。 A smoking article (not shown) according to a second embodiment of the present invention is basically the same as the smoking article according to the first embodiment of the present invention shown in FIG. However, in the smoking article according to the second embodiment of the present invention, the single thermally conductive element 36 is connected to the non-through combustible heat source 4 and the aerosol. The roll paper 38 forming the radial separation of the base material 10 is omitted, and the single thermally conductive element 36 is formed of a bonding material that includes an outer layer of a thermally conductive material and an inner layer of a heat insulating material. In the smoking article according to the second embodiment of the present invention, with the inner layer of the heat-insulating material of the single heat-conducting element 36, the outer layer of the heat-conducting material of the single heat-conducting element 36 and the indirect combustible heat source 4 and the aerosol form a base The material 10 is radially separated.

根據第2圖所示本發明第三實施例的該煙品42係與根據第1圖所示本發明第一實施例的該煙品之基本上結構相同。然而,在根據本發明第二實施例的該煙品42中,圍繞該氣溶膠形成基材10周邊的該第一進氣口40係省略,且該可燃熱源4係一直通可燃碳質熱源,該熱源包含一從該直通可燃熱源4前表面6延伸到後表面8的單一中央氣流通道44。 The smoking article 42 according to the third embodiment of the present invention shown in FIG. 2 is basically the same as the smoking article 42 according to the first embodiment of the present invention shown in FIG. 1. However, in the smoking article 42 according to the second embodiment of the present invention, the first air inlet 40 surrounding the aerosol-forming substrate 10 is omitted, and the combustible heat source 4 is always connected with a combustible carbon heat source. The heat source includes a single central airflow channel 44 extending from the front surface 6 to the rear surface 8 of the through combustible heat source 4.

如第2圖所示,一實質上不可燃不透氣屏障46設置在該可燃熱源4和該中央氣流通道44之間。該屏障46包含一設置在該單一中央氣流通道44之整個內表面上的實質上不可燃不透氣屏障塗層。 As shown in FIG. 2, a substantially non-combustible air-impermeable barrier 46 is disposed between the combustible heat source 4 and the central airflow channel 44. The barrier 46 includes a substantially non-flammable, air-impermeable barrier coating disposed on the entire inner surface of the single central airflow channel 44.

在使用時,根據本發明第三實施例,一使用者點燃該煙品42的直通可燃熱源4,然後在該煙嘴18上吸氣。當一使用者在該煙嘴18上吸氣時,清涼空氣(如第2圖中虛線箭頭所示)穿過該中央氣流通道44被吸入該煙品2的氣溶膠形成基材10。在該直通可燃熱源4後表面8上的實質上不可燃不透氣屏障22和在該單一中央氣流通道44內表面上的實質上不可燃不透氣屏障46,將該直通可燃熱源4與穿過該煙品42吸入的空氣隔離, 使得在使用時,穿過該煙品42吸入的空氣不直接接觸到該直通可燃熱源4。 In use, according to a third embodiment of the present invention, a user ignites the through combustible heat source 4 of the cigarette 42 and inhales on the cigarette holder 18. When a user inhales on the cigarette holder 18, cool air (as shown by the dashed arrow in FIG. 2) passes through the central airflow channel 44 and is drawn into the aerosol-forming substrate 10 of the smoking article 2. A substantially non-combustible air-impermeable barrier 22 on the rear surface 8 of the through combustible heat source 4 and a substantially non-combustible air-impermeable barrier 46 on the inner surface of the single central airflow channel 44 pass the through combustible heat source 4 through the The air inhaled by the smoking article 42 is isolated, In use, the air drawn through the smoking article 42 does not directly contact the through combustible heat source 4.

在本發明其他實施例中(未顯示),在該直通可燃熱源4後表面8和該氣溶膠形成基材10之間的實質上不可燃不透氣屏障22可省略。 In other embodiments of the present invention (not shown), the substantially non-flammable and air-impermeable barrier 22 between the rear surface 8 of the through combustible heat source 4 and the aerosol-forming substrate 10 may be omitted.

根據本發明第四實施例的一煙品(未顯示)係與根據第2圖所示本發明第三實施例的該煙品之基本上結構相同。然而,在根據本發明第四實施例的該煙品中,使該單一導熱元件36與該非直通直通可燃熱源4和該氣溶膠形成基材10徑向分離的該捲紙38係省略,且該單一導熱元件36由一貼合材料形成,該貼合材料包含一導熱材料的外層和一隔熱材料的內層。在根據本發明第四實施例的該煙品中,藉由該單一導熱元件36的隔熱層材料內層,該單一導熱元件36的導熱材料外層係與該直通可燃熱源4和該氣溶膠形成基材10徑向分離。 A smoking article (not shown) according to a fourth embodiment of the present invention has the same basic structure as the smoking article according to the third embodiment of the present invention shown in FIG. However, in the smoking article according to the fourth embodiment of the present invention, the roll paper 38 that radially separates the single heat-conducting element 36 from the non-through-through combustible heat source 4 and the aerosol-forming substrate 10 is omitted, and the The single thermally conductive element 36 is formed of a bonding material, which includes an outer layer of a thermally conductive material and an inner layer of a heat insulating material. In the smoking article according to the fourth embodiment of the present invention, with the inner layer of the heat-insulating material of the single heat-conducting element 36, the outer layer of the heat-conductive material of the single heat-conducting element 36 is formed with the through combustible heat source 4 and the aerosol The substrate 10 is radially separated.

範例AExample A

組裝一與上述根據本發明第二實施例之該煙品基本上相同結構的根據本發明煙品。該煙品包含一由貼合材料形成的單一導熱元件,該貼合材料包含一鋁外層和一紙內層。該煙品不包含一外捲紙,使得該單一導熱元件的鋁外層在該煙品的外觀上可見。沒有一圓周排列的第一進氣口圍繞該氣溶膠形成基材的周邊,而是該煙品包含圍繞該傳遞元件周邊的一圓周排列第三進氣口。 A smoking article according to the present invention is assembled having substantially the same structure as the smoking article according to the second embodiment of the present invention. The smoking article includes a single heat-conducting element formed by a laminating material, the laminating material includes an aluminum outer layer and an inner paper layer. The smoking article does not include an outer roll of paper, so that the aluminum outer layer of the single thermally conductive element is visible on the appearance of the smoking article. There is not a circumferentially arranged first air inlet around the periphery of the aerosol-forming substrate, but the cigarette includes a circumferentially arranged third air inlet around the periphery of the transmission element.

在根據本發明之該煙品中,藉由該單一導熱元件的紙內層,該單一導熱元件的鋁外層與該非直通可燃熱源和該氣溶膠形成基材徑向分離。 In the smoking article according to the present invention, the aluminum outer layer of the single thermally conductive element is radially separated from the non-through combustible heat source and the aerosol-forming substrate by a paper inner layer of the single thermally conductive element.

對比範例BComparative example B

為了對比的目的,組裝一不是根據本發明的煙品。不是根據本發明的該煙品包含一由一貼合材料形成的單一導熱元件,該貼合材料包含一鋁內層和一紙外層。另外,該煙品不是根據本發明,並與根據本發明範例A的該煙品結構不同。 For comparison purposes, a smoking article that is not according to the invention is assembled. The smoking article, which is not according to the present invention, includes a single thermally conductive element formed from a bonding material, which includes an inner layer of aluminum and an outer layer of paper. In addition, the smoking article is not according to the present invention and has a different structure from the smoking article according to Example A of the present invention.

在不是根據本發明的該煙品中,該單一導熱元件的鋁內層直接接觸該非直通可燃熱源和該氣溶膠形成基材。 In the smoking article not according to the present invention, the aluminum inner layer of the single thermally conductive element directly contacts the indirect combustible heat source and the aerosol-forming substrate.

在該可燃熱源燃燒期間,測量根據本發明範例A該煙品和不是根據本發明範例B該煙品之該非直通可燃熱源後部分的溫度,在該煙品中使用一熱偶,連接到在該氣溶膠產生基材上游1毫米位置的該煙品表面。測量結果如第3a圖所示。 During the combustion of the combustible heat source, the temperature of the rear part of the non-straight combustible heat source of the cigarette according to Example A of the present invention and the non-through combustible heat source of the cigarette according to Example B of the present invention is measured. The aerosol produces the surface of the smoking article 1 mm upstream of the substrate. The measurement results are shown in Figure 3a.

在該可燃熱源燃燒期間,測量根據本發明範例A該煙品和不是根據本發明範例B該煙品之該氣溶膠形成基材後部分的溫度,在該煙品中使用一熱偶,連接到在該可燃熱源下游6毫米位置的該煙品表面。測量結果如第3b圖所示。 During the combustion of the combustible heat source, the temperature of the rear part of the aerosol-forming substrate according to Example A of the present invention and the aerosol that is not according to Example B of the present invention was measured. A thermocouple was used in the cigarette to connect to The surface of the smoking article 6 mm downstream of the combustible heat source. The measurement results are shown in Figure 3b.

為了測量該非直通可燃熱源和該氣溶膠形成基材後部分的溫度,該煙品使用一傳統黃焰打火機點燃,並以加拿大衛生部吸煙機制(Health Canada smoking法) 抽煙,使用一抽煙機,超過12次抽吸,一次抽吸量55毫升,抽吸持續時間2秒,和一次抽吸間隔30秒。抽煙和抽煙機規格條件詳列在ISO標準3308中(ISO3308:2000)。大氣條件和測試詳列在ISO標準3402中。 In order to measure the temperature of the indirect combustible heat source and the back part of the aerosol-forming substrate, the cigarette was ignited using a traditional yellow flame lighter, and the health Canada smoking method was used (Health Canada smoking method) Smoking, using a smoking machine, more than 12 puffs, a 55ml puff, a puff duration of 2 seconds, and a puff interval of 30 seconds. The smoking and smoking machine specifications are detailed in ISO Standard 3308 (ISO3308: 2000). Atmospheric conditions and tests are detailed in ISO Standard 3402.

如第3a和3b圖所示,與根據本發明之該煙品相比,不是根據本發明範例B該煙品之該非直通可燃熱源和該氣溶膠形成基材後部分的溫度降低,特別是在較晚的抽吸期間。這導致不是根據本發明範例B該煙品之乾總顆粒物質(DTPM)輸送量(10.3毫克)低於根據本發明範例A該煙品之乾總顆粒物質(DTPM)輸送量(17.4毫克)。 As shown in Figs. 3a and 3b, compared with the smoking article according to the present invention, the temperature of the non-through combustible heat source and the aerosol-forming substrate of the smoking article which is not according to the example B of the present invention decreases, especially in the Late suction period. This resulted in a dry total particulate matter (DTPM) delivery amount (10.3 mg) of the smoking article not according to Example B of the present invention being lower than a dry total particulate matter (DTPM) delivery amount (17.4 mg) of the smoking article according to Example A of the present invention.

以上所述的具體實施例是用來說明本發明。然而,可產生如在申請專利範圍中定義的其他不脫離本發明精神和範圍之實施例,且可以理解的是並不限於以上所述的該等具體實施例。 The specific embodiments described above are used to illustrate the present invention. However, other embodiments can be generated as defined in the scope of the patent application without departing from the spirit and scope of the invention, and it is understood that they are not limited to the specific embodiments described above.

Claims (15)

一種煙品,包含:一可燃熱源,其具有相對之前表面和後表面;一氣溶膠形成基材,其在該可燃熱源之後表面的下游;及一單一導熱元件,該單一導熱元件覆蓋該可燃熱源的一後部分和該氣溶膠形成基材的至少一前部分,其中該單一導熱元件包含一層或多層導熱材料,且該一層或多層導熱材料係與該可燃熱源和該氣溶膠形成基材徑向分離,其中該可燃熱源係一非直通可燃熱源,或該可燃熱源係一直通可燃熱源,且該煙品進一步包含一在該直通可燃熱源和一個或多個氣流通道之間的實質上不可燃且不透氣的屏障,該一個或多個氣流通道從該直通可燃熱源之該前表面延伸至該後表面,及其中該單一導熱元件包含一由導熱材料構成,在該煙品的外部上可見的外層。A smoking article comprising: a combustible heat source having opposite front and rear surfaces; an aerosol-forming substrate downstream of the rear surface of the combustible heat source; and a single thermally conductive element covering the combustible heat source A rear portion and at least a front portion of the aerosol-forming substrate, wherein the single thermally conductive element comprises one or more layers of thermally conductive material, and the one or more thermally conductive materials are radially separated from the combustible heat source and the aerosol-forming substrate Wherein the combustible heat source is a non-direct combustible heat source, or the combustible heat source is a combustible heat source, and the tobacco product further includes a substantially non-combustible and non-flammable gas source between the direct combustible heat source and one or more airflow channels. A breathable barrier, the one or more airflow channels extending from the front surface to the rear surface of the through-combustible heat source, and wherein the single thermally conductive element comprises an outer layer made of a thermally conductive material visible on the exterior of the smoking article. 如請求項1之煙品,其中該一層或多層導熱材料藉由一層或多層隔熱材料而與該可燃熱源和該氣溶膠形成基材徑向地分離。The smoking article of claim 1, wherein the one or more layers of thermally conductive material are radially separated from the combustible heat source and the aerosol-forming substrate by one or more layers of thermal insulation material. 如請求項1之煙品,其中該一層或多層導熱材料係與該可燃熱源和該氣溶膠形成基材徑向地分離至少50微米。The smoking article of claim 1, wherein the one or more layers of thermally conductive material are radially separated from the combustible heat source and the aerosol-forming substrate by at least 50 microns. 如請求項1之煙品,其中該單一導熱元件由一貼合材料形成,該貼合材料包含一層或多層導熱材料和一層或多層隔熱材料。The smoking article of claim 1, wherein the single thermally conductive element is formed of a laminating material, the laminating material comprises one or more thermally conductive materials and one or more thermally insulating materials. 如請求項4之煙品,其中該一層或多層導熱材料藉由一層或多層隔熱材料中之至少一層而與該可燃熱源和該氣溶膠形成基材徑向地分離。The smoking article of claim 4, wherein the one or more layers of thermally conductive material are radially separated from the combustible heat source and the aerosol-forming substrate by at least one of one or more layers of thermal insulation material. 如請求項1至5中任一項之煙品,其中該一層或多層導熱材料包含一熱反射材料。The smoking article according to any one of claims 1 to 5, wherein the one or more layers of thermally conductive material comprises a heat reflective material. 如請求項6之煙品,其中該熱反射材料反射超過入射輻射的50%。The cigarette of claim 6, wherein the heat reflective material reflects more than 50% of the incident radiation. 如請求項1至5中任一項之煙品,其中該單一導熱元件覆蓋該氣溶膠形成基材的全長。The smoking article according to any one of claims 1 to 5, wherein the single thermally conductive element covers the entire length of the aerosol-forming substrate. 如請求項8之煙品,其中該單一導熱元件往下游延伸超過該氣溶膠形成基材。The smoking article of claim 8, wherein the single thermally conductive element extends downstream beyond the aerosol-forming substrate. 如請求項1至5中任一項之煙品,另包含在該可燃熱源之該後表面和該氣溶膠形成基材之間的一實質上不可燃、不透氣的屏障。The smoking article of any one of claims 1 to 5, further comprising a substantially non-flammable, air-impermeable barrier between the rear surface of the combustible heat source and the aerosol-forming substrate. 如請求項1至5中任一項之煙品,另包含一個或多個第一進氣口,圍繞該氣溶膠形成基材的周邊。The smoking article according to any one of claims 1 to 5, further comprising one or more first air inlets, forming a periphery of the substrate around the aerosol. 如請求項1至5中任一項之煙品,其中該氣溶膠形成基材鄰接該可燃熱源之該後表面。The smoking article according to any one of claims 1 to 5, wherein the aerosol-forming substrate is adjacent to the rear surface of the combustible heat source. 如請求項1至5中任一項之煙品,其中該氣溶膠形成基材係與該可燃熱源之該後表面相間隔開。The smoking article according to any one of claims 1 to 5, wherein the aerosol-forming substrate is spaced from the rear surface of the combustible heat source. 如請求項1至5中任一項之煙品,另包含一個或多個第二進氣口,其位在該可燃熱源之該後表面和該氣溶膠形成基材之間。The smoking article according to any one of claims 1 to 5, further comprising one or more second air inlets located between the rear surface of the combustible heat source and the aerosol-forming substrate. 如請求項1至5中任一項之煙品,另包含一個或多個氣溶膠改良劑,其位在該氣溶膠形成基材之下游。The smoking article according to any one of claims 1 to 5, further comprising one or more aerosol modifiers located downstream of the aerosol-forming substrate.
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