巴西专利BR112015012545B1 method for manufacturing smoke article components with removable sheath

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METHOD AND EQUIPMENT FOR THE MANUFACTURE OF SMOKE ARTICLE COMPONENTS WITH REMOVABLE CASING. Method and corresponding equipment for the manufacture of multicomponent segments for smoking articles, each having a removable casing. The method comprises: feeding a stream of heat sources and aerosol forming substrates along a mobile delivery route; compact at least one heat source and an aerosol-forming substrate in groups, each group corresponding to at least one multi-segmented component, each multi-segmented component having a first end adjacent to the heat source and a second end adjacent to the forming substrate aerosol; pack the heat sources and aerosol forming substrates in a material network, with the material network having a weak line spaced; align each line of weakness in such a way that each is in close proximity to a respective heat source; and cutting the material web in a position close to the first end of the discrete multi-segmented component, in which at least a portion of the material web forms a removable shell, the shell being removable by breaking the shell in its respective line of weakness. The present invention relates to - (...).
公开号:BR112015012545B1
申请号:R112015012545-0
申请日:2013-12-06
公开日:2021-01-26
发明作者:Alexis Louvet；Oleg Mironov；Andrea Carraro；Christopher John Grant
申请人:Philip Morris Products S.A.；
IPC主号:

专利说明:

[001] The present invention relates to a method for manufacturing components of a smoke article comprising a heat source and an aerosol forming substrate, the smoke article having a removable shell to protect the heat source. The invention also relates to the corresponding equipment for carrying out the manufacturing method.
[002] Several smoking articles in which the tobacco is heated instead of undergoing combustion have been proposed within the scope of the technique. One of the aims of such "heated" smoking articles is to reduce the already known harmful components of smoke, of the type produced by the combustion and pyrolytic degradation of tobacco, in conventional cigarettes. In a known type of heated smoking article, an aerosol is generated by the transfer of heat from a combustible heat source to an aerosol-forming substrate located downstream of the combustible heat source. During smoking, volatile compounds are released from the aerosol-forming substrate by means of heat transfer from the combustible heat source, and are entrained in the aspirated air through the smoke article. As they cool, the released compounds condense to form an aerosol that is aspirated by the user. Typically, air is sucked into one of these known smoking articles through one or more airflow channels provided by the fuel heat source and the heat transfer from the fuel heat source to the aerosol forming substrate. occurs by convection (ie, blowing) and forced driving.
[003] For example, WO-A2-2009 / 022232 describes a smoking article comprising a combustible heat source, an aerosol-forming substrate downstream of the combustible heat source, and a heat conducting element around , and in direct contact with, a rear portion of the combustible heat source and an adjacent front portion of the aerosol-forming substrate. To provide a controlled amount of forced convective heating of the aerosol-forming substrate, at least one longitudinal airflow channel is provided through the combustible heat source.
[004] Known heat sources are generally manufactured from fragile materials, such as compressed particulate material, which may have a tendency to fragment, crumble or break during the manufacture of smoking articles, during packaging , during transport and during handling by the user. Such malfunction of the heat source can dirty other segments or components of the smoky article, other smoky articles or the user with dust, which is undesirable.
[005] In addition, known sources of heat, especially when manufactured from compressed particulate material, can absorb moisture from the atmosphere, depending on atmospheric conditions, which can make heat sources more susceptible to breakage, and, where the source heat is combustible, it can make ignition of the heat source more difficult.
[006] Methods of making such smoking articles are also known, in which all the components or segments of the smoking article are covered by an external wrapper. All components or segments of the smoke article are combined in a combiner, and then wrapped in an outer shell. During the manufacture of the smoking article, the source of combustible heat is susceptible to breaking and crumbling and thus, it can dirty or stain the other components and segments of the smoking article or other smoking articles.
[007] Therefore, one of the objectives of the present invention is to provide a method for the manufacture of smoke articles, and components for smoke articles, which have a heat source that reduces the susceptibility to breakage of the heat source during manufacture, and reduces the risk of staining or soiling other components of the smoke article with dust or other particulate materials from the heat source during manufacture.
[008] In accordance with the present invention, there is provided a method for manufacturing multisegmented components for smoking articles, each having a removable housing. In one embodiment, the method comprises: feeding a stream of heat sources, aerosol-forming substrates and lids along a mobile delivery route; compact in groups at least one heat source, an aerosol forming substrate and a lid, each group corresponding to at least one multisegmented component, each multisegmented component having a first end adjacent to the heat source and a second end adjacent to the substrate of aerosol formation, and each cap having a first ex-tremity and a second end positioned adjacent to the heat source; wrap the heat source, the aerosol forming substrate and the cap of each group in a network of materials, with the network of materials spaced lines of weakness; and cutting the material web in a position close to the first end of the multi-segmented component and adjacent to the first end of the cap, where at least a portion of the material web forms a removable wrapper, the wrapper being removable by breaking the wrapper in its respective line of weakness, and in which the removable cover, in combination with the cover, forms a removable cover to protect the heat source. In a preferred embodiment, the group comprising at least one heat source, an aerosol-forming substrate and a lid comprises a heat source and an aerosol-forming substrate, which form a discrete multisegmented component. Alternatively, the group comprising at least one heat source and an aerosol-forming substrate comprises two heat sources and an aerosol-forming substrate, which forms a double multi-segmented component. In this alternative embodiment, the double multi-segmented component comprises a heat source at each end of the double multi-segmented component, with the aerosol forming substrate positioned between the heat sources. To form discrete multisegmented components, the method may further comprise cutting the multisegmented double component close to the longitudinal midpoint of the aerosol-forming substrate.
[009] Alternatively, the double multi-segmented component can be cut into discrete multi-segmented components during the manufacture of smoking articles that incorporate the multi-segmented components.
[0010] In accordance with another aspect of the present invention, a method is provided for manufacturing multi-segmented components for smoking articles, each having a removable housing, comprising: feeding a stream of heat sources, aerosol-forming substrates and elongated segments along a mobile delivery route; compact in groups at least one heat source, an aerosol-forming substrate and an elongated element, each group corresponding to at least one multisegmented component, each multisegmented component having a first end adjacent to the heat source, a second adjacent end the aerosol-forming substrate and an elongated segment positioned at the second end; involve the heat sources, aerosol forming substrates and elongated segments in a material network, with the material network spaced lines of weakness; and cutting the material web in a position close to the first end of the discrete multi-segmented component, in which at least a portion of the material web forms a removable shell, the shell being removable by breaking the shell in its respective line of weakness, and in that the material web is cut so that a portion of the elongated segment of a discrete multi-segmented component, in combination with the removable housing of an adjacent multi-segmented component, forms a removable cover.
[0011] Advantageously, by providing a network of material with spaced lines of weakness that combines with the cover or the elongated segment to form a removable cover, the heat source of the multi-component segment can be protected more effectively during manufacture, transport and storage. When providing a protected heat source, the heat source is less likely to break or crumble. Therefore, such a multisegmented component is less likely to soil or stain adjacent components, or adjacent smoking articles, with dust or other particulate materials originating from the heat source. Therefore, the removable cover acts to protect the other smoking articles or segments or components of other smoking articles from the heat source. Advantageously, the removable lid also helps to prevent or reduce the amount of damage that can occur to the heat source during manufacture, packaging, handling and storage.
[0012] In addition, where the heat source is a source of combustible heat, the segments or components can be more easily compacted because the problem of the heat source dirtying other smoking articles, or other segments or components of the smoking article also it is mitigated since the removable cover covers at least partially the heat source.
[0013] In a preferred embodiment, the method may additionally comprise the alignment of each line of weakness, in such a way that each one is in proximity to a respective source of heat. Alternatively, each line of weakness can be aligned so as to be in proximity to a respective portion of the aerosol-forming substrate, or any other segment of the multi-segmented component.
[0014] As used in this document, the term "in proximity" refers to the fact that an element, such as a line of weakness, is approximately transversely adjacent to a segment of the multi-segmented component.
[0015] As used herein, the terms "upstream" and "front", "downstream" and "rear / rear" are used to describe the relative positions of components or parts of components, of the smoking article in relation to the direction in which a user aspirates the smoking article while using it. The smoking articles according to the invention comprise a mouth end and an opposite distal end. During use, the user aspirates through the mouth end of the smoking article. The mouth end is downstream of the distal end. The heat source is located at the distal end of the smoke article or in proximity to it.
[0016] As used in this document, the term "longitudinal" refers to the direction of the length of the smoking article. The term "transverse" refers to a direction perpendicular to the longitudinal direction.
[0017] In the preferred embodiment, the line of weakness is preferably aligned in proximity to the downstream end of the heat source. Alternatively, the line of weakness may be aligned in proximity to a position along the longitudinal axis of the heat source, or along the longitudinal axis of the aerosol forming substrate. In another alternative embodiment, the line of weakness is aligned in proximity to an end downstream of the aerosol-forming substrate or upstream of the aerosol-forming substrate. In yet another preferred alternative embodiment, the line of weakness is positioned in proximity to either the upstream or downstream edge of the heat conducting element. In certain preferred embodiments, the heat-conducting element is provided over at least a portion of the heat source.
[0018] Preferably, the method comprises applying an adhesive away from the line of weakness, to fix the wrapper to the heat source and the aerosol-forming substrate. By attaching the casing away from the weakness line, the weakness line can be broken more easily when the user wants to remove the casing. The adhesive can be supplied in an elongated line that extends from the first end of the multi-segmented component to the second end of the multi-segmented component. In embodiments where an additional segment is positioned at the second end of the multi-segmented component, the elongated line of adhesive may extend to the end of the additional segment. The additional segment can be a tobacco plug, a diffuser, a transfer section, a filter segment or any other segment or component of such a smoking article. When the adhesive is supplied in an elongated line, the adhesive line is interrupted in proximity to the weakness line. Alternatively, the adhesive can be supplied over substantially the entire wrapper, and interrupted in proximity to the line of weakness.
[0019] In the preferred modality, the lines of spacing weakness are arranged in such a way that they circumscribe the discrete multisegmented component. Which is to say that each line of weakness extends across the length of the material web, such that when the material web is wrapped around the components of the multi-segmented component, each line of weakness is provided around the periphery of the multithreaded component. By providing more lines of weakness arranged in this manner, the removable wrapper can be more easily removed without damaging the remaining wrapper.
[0020] Alternatively, or in addition to this, an additional set of lines of weakness is arranged in such a way that they are substantially parallel to the longitudinal axis of the discrete multisegmented components. In this arrangement, the additional lines of weakness are preferably positioned in such a way that, when the groups of components are cut into multisegmented packaged components, the additional lines of weakness extend longitudinally from a point adjacent to the first end towards the second end. By providing such a line of weakness, the user will be able to remove the casing more easily, first tearing along the longitudinal weakness line, and then along the circumferential weakness line. Each line of weakness in the additional set of spaced lines of weakness can be formed using a laser or, mechanically, using a cogwheel, a series of blades, impaction or a combination of any of these methods. The method by which each line of weakness in the additional set of spaced lines of weakness is formed can be the same or different from other lines of weakness that, for example, circumscribe the circumferential perimeter of a group of components.
[0021] In this arrangement, the length of each weakness line in the additional set of spaced weakness lines can be at least 50% of the length of the heat source. Which is to say, each line of weakness extends along the heat source for at least 50% of the longitudinal length of the heat source. In this way, when the casing is removed by the user, at least 50% of the heat source is exposed. More preferably, the length of the line of weakness extends between about half to two thirds of the length of the heat source. In preferred alternative embodiments, the length of the line of weakness extends at least about 75% of the length of the heat source. Preferably, the length of the weakness line should not extend more than 85% of the heat source.
[0022] In this provision, each line of weakness in the additional set of spaced lines of weakness may intersect or merge with a line of weakness of the spaced lines of weakness. Alternatively, each line of weakness in the additional set of spaced lines of weakness may end in proximity to a line of weakness of the spaced lines of weakness. The length of each line of weakness in the additional set of spaced lines of weakness can be from 3 mm to about 13 mm, more preferably from about 5 mm to about 10 mm, and more preferably about 8 mm.
[0023] In certain preferential modalities, each line of weakness in the additional set of spaced lines of weakness comprises a plurality of perforations that are understood throughout the article. Alternatively, the line of weakness may comprise an inscribed or dotted line reducing the strength of the material, or a different, weaker section of material. As another alternative, the longitudinal weakness line may comprise a slit that extends over the entire thickness of the shell.
[0024] In this provision, each line of weakness can be either linear or non-linear. The non-linear line of weakness can be a smooth wave, a triangular wave, or any other suitable non-linear line. Preferably, the non-linear line comprises a semicircle.
[0025] Preferably, the method further comprises applying a strip of material to the material network adjacent to each line of weakness configured so as to extend from one edge of the web of material, and through at least a portion of the web. material net, in which the strip of material forms a seal to remove the removable wrapping.
[0026] The strip of material can extend beyond the edge of the material web by at least 5 mm, and preferably by at least 10 mm. The strip of material can be made of plastic, metal, such as aluminum foil, or any other suitable material with sufficient tensile strength to tear the web of material when pulled. The strip of material can be in the form of string, wire or a long piece with a narrow shape.
[0027] In a preferred embodiment, the flow of lids comprises a flow of elongated elements, in which each group that corresponds to a multi-segmented component additionally comprises an elongated segment positioned at the second end and in which the cutting step comprises the cutting of the network of material in such a way that a portion of the elongated segment of a multisegmented component, in combination with the removable housing of an adjacent multisegmented component, forms the removable lid. In an alternative preferred embodiment, the flow of elongated segments has a double length, in which each group comprising at least one heat source and an aerosol-forming substrate comprises two heat sources and two aerosol-forming substrates, and an elongated segment of double length, so as to form a double multi-segmented component. In this alternative embodiment, the double multisegmented component comprises a heat source at each end of the multisegmented double component, with the aerosol-forming substrate adjacent to each heat source, and the elongated double-length segment between the substrate-forming substrate. aerosol. To form discrete multisegmented components, the method may additionally comprise the cutting of the multisegmented double component close to the longitudinal midpoint of the elongated segment of double length.
[0028] As used in this document, the term "elongated segment" refers to any portion of a smoking article downstream of the aerosol-forming substrate, which increases the length of the smoking article.
[0029] The removable cover may comprise a desiccant. The desiccant is provided to absorb moisture from the atmosphere, in order to prevent or reduce the amount of moisture absorption by the heat source. Advantageously, reducing the amount of moisture absorbed by the heat source can provide a smokeless article that is easier to ignite. The desiccant can be a substance that is soluble or insoluble in water, including, but not limited to, glycerin, calcium chloride, calcium sulfate, calcium oxide, aluminum sulfate, aluminum sulfate, Montmorillonite clay, gel silica, zeolites, molecular sieves, activated carbon, clay or any combination of these. The desiccant can be supplied in-line, either during the manufacturing process of the multisegmented component, or more preferably, the removable lid is supplied pre-loaded with desiccant before being fed to the equipment for forming multisegmented components.
[0030] Advantageously, the use of a portion of a segment in the multi-segmented component to form a portion of the removable cover allows the provision of a more efficient manufacturing process. .
[0031] The method preferably also comprises drilling the material network to form the lines of weakness. Perforations can be formed by, for example, a pulsating laser, a hot wire or mechanically, using a gear wheel, a series of blades, an impactor or a combination of any of these methods.
[0032] A heat conducting element can be provided between the material network and the heat source. The heat conducting element provides a thermal link between the heat source and an aerosol-forming substrate of smoking articles in accordance with the invention. Preferably, the heat conducting element is resistant to combustion and has oxygen restriction. Heat conducting elements suitable for use in smoking articles in accordance with the invention include, but are not limited to: graphite foil, foil wrappers such as, for example, aluminum foil wrappers, steel wrappers, iron wrappers and copper shells; and alloy foil wrappers. Preferably, the heat conducting element overlaps at least a portion of the heat source and at least a portion of the aerosol-forming substrate. The heat-conducting element can be affixed to the internal surface of the material web using an adhesive.
[0033] Alternatively or additionally, the heat conducting element can be supplied on the external surface of the material network.
[0034] Preferably, individual combustible heat sources are fed from a funnel. Combustible heat sources can be made from a fragile material, such as a particulate compressed material, which may be prone to chipping, crumbling or fragmenting when cut with a conventional blade. Therefore, since the combustible heat sources are not cleanly cutable, the present method advantageously provides the combustible heat sources individually. The combustible heat sources are preferably substantially cylindrical and comprise a heat conductive bottom coating on an end face. The method preferably comprises the alignment of combustible heat sources, within the limits of the funnel, so that the combustible heat sources are fed to the mobile delivery route with the bottom covering of each combustible heat source in substantially the same guidance.
[0035] Each heat source can be a carbonaceous or carbon-based heat source. Preferably, the heat source is cylindrical. In that case, each heat source in the mobile delivery path preferably has its longitudinal axis substantially aligned with the direction of movement of the delivery path. The heat source can optionally include one or more airflow channels along itself.
[0036] In the preferred mode, the heat source is preferably a source of combustible heat. In an alternative embodiment, the heat source can be a chemical heat source, or any other heat source suitable for a smoking article that may need protection from environmental conditions throughout manufacture and storage. In certain embodiments, for example, the chemical heat source can be activated when exposed to the atmosphere. Specifically, the chemical heat source can be activated if exposed to air, or, more specifically, to oxygen or any other suitable component in the air. In this alternative embodiment, the removable cover is particularly advantageous because it can substantially isolate the heat source from the atmosphere.
[0037] In embodiments where the heat source is a combustible heat source, to isolate the combustible heat source from the air aspirated through the smoke article, smoke articles according to the invention may comprise a non-combustible barrier, substantially impermeable to air, between an end downstream of the combustible heat source and an end upstream of the aerosol-forming substrate.
[0038] As used herein, the term "non-combustible" is used to describe a substantially non-combustible barrier at temperatures reached by the combustible heat source during combustion or ignition thereof.
[0039] The barrier may be adjacent to the downstream end of the combustible heat source and to the upstream end of the aerosol-forming substrate.
[0040] The barrier may adhere, or be otherwise affixed, both to the downstream end of the combustible heat source and to the upstream end of the aerosol-forming substrate.
[0041] Where a heat conducting element is preferably provided, the border portion of the aerosol forming substrate surrounded by the heat conducting element is between about 2 mm and about 10 mm in length. Preferably, the rear part of the aerosol forming substrate not surrounded by the heat conducting element is between about 3 mm and about 10 mm in length. In other words, the aerosol-forming substrate preferably extends between about 3 mm and about 10 mm downstream, in addition to the heat conducting element.
[0042] In yet other modalities, the entire length of the aerosol-forming substrate can be surrounded by a heat conducting element.
[0043] Preferably, smoking articles manufactured according to the invention comprise aerosol-forming substrates that comprise a material capable of emitting volatile compounds in response to heating. Preferably, the material capable of emitting volatile compounds in response to heating is a charge of plant-based material, more preferably a charge of homogenized plant-based material. For example, the aerosol-forming substrate may comprise one or more plant-derived materials, including, but not limited to: tobacco; tea, for example, green tea; mint; blond; eucalyptus; basil; saves; verbena; and tarragon. The plant-based material may comprise additives, including, but not limited to, humectants, flavorings, binders and mixtures thereof. Preferably, the herbal material consists essentially of tobacco material, more preferably homogenized tobacco material.
[0044] In a preferred embodiment, the aerosol forming substrate additionally comprises at least one aerosol former. The at least one aerosol former can be any suitable known compound or mixture of compounds which, when in use, facilitate the formation of a dense and stable aerosol and which is substantially resistant to thermal degradation at the operating temperature of the aerosol generating article.
Suitable aerosol builders are well known in the art and include, but are not limited to: polyhydric alcohols, such as triethylene glycol, 1,3-butanediol and glycerin; esters of polyhydric alcohols, such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids, such as dimethyl dodecaodioate and dimethyl tetradecanedioate.
Preferred aerosol builders for use in smoking articles are polyhydric alcohols or mixtures thereof, such as triethylene glycol, 1,3-butanediol and, more preferably, glycerin.
[0047] In certain alternative preferred modalities, the aerosol-forming substrate may not be plant-based. In such embodiments, the aerosol-forming substrate can be made from any material that is capable of being impregnated with a volatile compound in response to heating, and is thermally stable over the temperature range achieved when heating by the heat source . Volatile compounds, such as nicotine, flavors and other aerosol modifiers and additives or combinations thereof, can be incorporated into the non-plant based aerosol-forming substrate.
[0048] As described above, the heat source is preferably a source of combustible heat. Most preferably, the fuel heat source is a carbonaceous heat source. As used in this document, the term "carbonaceous" is used to describe a combustible heat source that comprises carbon.
[0049] Preferably, combustible carbonaceous heat sources for use in smoking articles, according to the invention, have a carbon content of at least about 35 percent, more preferably at least about 40 percent, more preferably still at least 45 percent by dry weight of the fuel heat source.
[0050] In some embodiments, the sources of combustible heat according to the invention are sources of combustible heat based on carbon. As used herein, the term "carbon-based heat source" is used to describe a heat source consisting primarily of carbon.
[0051] Carbon-based combustible heat sources for use in smoking articles manufactured in accordance with the invention, may have a carbon content of at least about 50 percent, more preferably at least about 60 percent, more preferably at least 70, more preferably at least 80 percent by dry weight of the carbon-based combustible heat source.
[0052] Smoke articles manufactured in accordance with the invention may comprise carbonaceous combustible heat sources formed from one or more suitable carbon-containing materials.
[0053] If desired, one or more binders can be combined with one or more carbon-containing materials. Preferably, one or more binders are organic binders. Suitable known organic binders include, but are not limited to, gums (e.g., guar gum), modified celluloses and cellulose derivatives (e.g., methylcellulose, carboxymethylcellulose, hydroxypropylcellulose and hydroxypropyl methylcellulose), wheat flour, starches, sugars , vegetable oils and combinations thereof.
[0054] Instead of, or in addition to, one or more binders, combustible heat sources for use in smoking articles manufactured in accordance with the invention may comprise one or more additives in order to improve the properties of the combustible heat source. Suitable additives include, but are not limited to, additives to promote the consolidation of the combustible heat source (for example, sintering aids), additives to promote ignition of the combustible heat source (for example, oxidants such as perchlorates, chlorates, nitrates, peroxides, permanganates, zirconium and combinations thereof), additives to promote the combustion of the combustible heat source (for example, potassium and potassium salts, such as potassium citrate) and additives to promote the decomposition of one or more gases produced combustion of the combustible heat source (eg catalysts, such as CuO, Fe2O3 and Al2O3).
[0055] In accordance with a further aspect of the present invention, there is provided a method for manufacturing multi-segmented components of smoke articles, each having a removable housing, comprising: feeding a stream of heat sources and forming substrates aerosol spray along a mobile delivery route; compact in groups at least one heat source and an aerosol forming substrate, each group corresponding to at least one multisegmented component, each multisegmented component having a first end adjacent to the heat source and a second end adjacent to the forming substrate aerosol; wrapping the heat sources and aerosol forming substrates in a material network, the material network having widely spaced lines of weakness; and cutting the material web in a position close to the first end of the discrete multi-segmented component, in which at least a portion of the material web forms a removable shell, the shell being removable by breaking the shell in its respective line of weakness.
[0056] In a preferred embodiment, the method additionally comprises: feeding a stream of elongated segments along the mobile delivery route, in which each group corresponding to a discrete multisegmented component further comprises an elongated segment positioned at the second end; wherein, the web of material is cut so that a portion of the elongated segment of a discrete multisegmented component, in combination with the removable housing of an adjacent multisegmented component, forms a removable cover.
[0057] In accordance with a further aspect of the present invention, there is provided a method for the manufacture of smoking articles. The method comprises feeding a stream of first multi-segmented components manufactured as described in this document, to a receiving medium; feeding a stream of second multisegmented components, each comprising at least one nozzle, to a receiving medium; and combining a first multisegmented component and a second multisegmented component by wrapping at least a portion of the first multisegmented component and the second multisegmented component in a network of material to form an individual smoke article containing a removable wrap at a distal end and an mouthpiece at a proximal end.
[0058] In one embodiment, during the stage of combining the first multisegmented component and the second multisegmented component, the first multisegmented component additionally wrapped with a heat conducting element, in which said line of weakness and the element conductors are positioned in such a way that they do not overlap each other. In certain preferred embodiments, the heat conducting element comprises heat reflective material.
[0059] In an alternative embodiment, a heat conducting element is wrapped around at least a portion downstream of the heat source, and at least a portion upstream of the aerosol-forming substrate before combining the first component multisegmented to the second multisegmented component.
[0060] In another alternative embodiment, a heat source and an aerosol-forming substrate are compacted to form a group, which is wrapped in a network of material that has a line of weakness, which is aligned in a way overlapping the heat conducting element. Preferably, the line of weakness circumscribes the circumferential perimeter of the group. In another alternative embodiment, the step of providing a wrapper that has spaced lines of weakness can be provided during the step of combining the first and the second multi-segmented component. In this embodiment, the material network used to combine the first and the second multisegmented component comprises the spaced lines of weakness. As will be appreciated, the methodological steps described above in relation to the formation of a multi-segmented component with a removable housing apply equally to this other alternative modality.
[0061] In accordance with a further aspect of the present invention, an equipment is provided for the manufacture of multi-segmented components for smoking articles, each having a removable housing. The equipment is suitable for carrying out the method, as described above. The equipment comprises: a feeder to feed a stream of heat sources, aerosol forming substrates and lids along a mobile delivery route; a compactor for compacting at least one heat source in groups, an aerosol forming substrate and a lid, each group corresponding to at least one multi-segmented component, each multi-segmented component having a first end adjacent to the heat source and a second end adjacent to the aerosol forming substrate and each cap having a first ex-tremity and a second end positioned adjacent to the heat source; means for wrapping heat sources, aerosol-forming substrates and lids in a network of materials, with the network of materials spaced lines of weakness; and a cutter to cut the material web in a position close to the first end of the discrete multisegmented component and adjacent to the first end of the lid, in which at least a portion of the material web forms a removable shell, the shell being removable upon breaking of the enclosure in its respective line of weakness, and in which the removable enclosure, in combination with the cover, forms a removable cover to protect the heat source.
[0062] The equipment may additionally comprise means for aligning each line of weakness so that each is in close proximity to a segment, component or segment portion of the desired smoking article. For example, in certain preferred embodiments, the equipment may comprise means for aligning each line of weakness so that each is in proximity to the downstream end of the heat source or heat conducting element. Alternatively, the equipment may comprise means for aligning each line of weakness so that each line of weakness is aligned with a position along the longitudinal axis of the heat source, the aerosol forming substrate or the heat conducting element. In yet another alternative preferred embodiment, the line of weakness is aligned with the downstream end of the aerosol-forming substrate. In yet another preferred alternative embodiment, the line of weakness is positioned at a point adjacent to both the upstream and downstream edges of the heat conducting element.
[0063] In accordance with an additional aspect of the present invention, an equipment is provided for the manufacture of multisegmented components for smoking articles, each having a removable housing, the equipment comprising: a feeder to feed a stream of sources heat, aerosol forming substrates and elongated segments along a mobile delivery route; a compactor for compacting at least one heat source in groups, an aerosol-forming substrate and an elongated segment, each group corresponding to at least one multi-segmented component, each multi-segmented component having a first end adjacent to the heat source, a second extreme - humidity adjacent to the aerosol-forming substrate and an elongated segment positioned at the second end; means for wrapping heat sources, aerosol forming substrates and elongated segments in a material network, the material network having widely spaced lines of weakness; and a cutter to cut the material network of the discrete multi-segmented component, in which at least a portion of the material network forms a removable wrapper, the wrapper being removable by breaking the wrapper in its respective line of weakness, so that a portion of the elongated segment of a discrete multisegmented component, in combination with the removable housing of an adjacent multisegmented component, forms a removable cover.
[0064] In accordance with yet another additional aspect of the present invention, an equipment is provided for the manufacture of smoking articles, each having a removable housing. The equipment comprises: a feeder to supply a stream of first multisegmented components manufactured using the equipment as described in this document; a feeder for feeding a stream of second multisegmented components, each comprising at least one nozzle, to a receiving medium; and a combiner to combine a first multi-segmented component and a second multi-segmented component, the combiner comprising: means for wrapping at least a portion of the first multi-segmented component and the second multi-segmented component in a network of material to form an individual smoking article containing a removable casing at a distal end and a mouthpiece at a proximal end.
[0065] Smoking articles manufactured in accordance with the invention may additionally comprise an expansion chamber upstream of the nozzle. The expansion chamber is provided in the second multi-segmented component. Preferably, the nozzle is of low filtration efficiency, more preferably of very low filtration efficiency. The nozzle can be a single segment nozzle. Alternatively, the nozzle can be a multisegment or multicomponent nozzle.
[0066] The nozzle may, for example, comprise a filter made of cellulose acetate, paper or other known and suitable filter materials. Alternatively, or in addition to, the nozzle may comprise one or more segments containing absorbents, adsorbents, flavorings and other aerosol-modifying additives or combinations thereof.
[0067] Each feature described in the specification, and (where appropriate), claims and figures, can be provided independently or in any appropriate combination. The invention extends to methods and / or equipment substantially in accordance with those described in this document, with reference to the accompanying drawings.
[0068] Any equipment resource, as described in this document, can also be provided as a method resource, and vice versa. As used in this document, resources of means and functions can be expressed alternatively in terms of their corresponding structure, such as a properly programmed processor and associated memory.
[0069] Any feature in one aspect of the invention can be applied to other aspects of the invention, in any appropriate combination. In particular, methodological aspects can be applied to equipment aspects, and vice versa. In addition, any one, some and / or all features in one aspect can be applied to any one, some and / or all features related to any other aspect, in any appropriate combination.
[0070] It should also be appreciated that specific combinations of various features described and defined in any aspect of the invention can be implemented and / or provided and / or used independently.
[0071] Modalities of smoking articles manufactured in accordance with the present invention will now be described in more detail, exclusively by way of example, with reference to the accompanying drawings in which: Figure 1 represents a schematic representation of a smoking article manufactured in accordance with a preferred embodiment of the invention; Figure 2 represents a schematic representation of a portion of the manufacturing process, in accordance with the preferred embodiment of the present invention; Figure 3 represents an embodiment of a smoking article manufactured in accordance with the invention; Figure 4 represents an additional embodiment of a smoking article manufactured in accordance with the invention; and Figure 5 represents another additional embodiment of a smoking article manufactured in accordance with the invention.
[0072] The smoking article 100 manufactured in accordance with one embodiment of the method of the present invention is shown in Figure 1. The process is described in detail below with reference to the following attributes of the smoking article. The smoke article comprises a carbonaceous fuel heat source 102, an aerosol-forming substrate 104, an airflow directing element 106, an expansion chamber 108 and a nozzle 110 in contiguous coaxial alignment. The carbonaceous fuel heat source 102, the aerosol forming substrate 104, and the airflow directing element 106 are formed as a first multi-segmented component enclosed in the shell 112, and the elongated expansion chamber 108 and the nozzle 110 are formed. as a second multithreaded component. The first and the second multisegmented component are externally surrounded by a substantially low air permeability of cigarette paper 113.
[0073] A removable cover 114 is provided at the distal end of the smoking article 100, and is directly adjacent to the heat source 102. The removable cover 114 comprises a central portion 116, and is encased in a portion 118 of housing 112. In the In the illustrated embodiment, the central portion 116 comprises a desiccant, such as glycerin, preferably supplied to absorb moisture from the atmosphere in the vicinity of the combustible heat source, in order to reduce or prevent degradation of performance of the combustible heat source upon ignition and use. The casing portion 118 is connected to the casing 112 on a weakness line 120. The weakness line comprises a plurality of perforations that circumscribe the smoking article 100.
The aerosol forming substrate 104 is located immediately downstream of the carbonaceous fuel heat source 102 and comprises a cylindrical plug 122 of tobacco material comprising glycerin as an aerosol former and circumscribed by the plug housing 124.
[0075] A non-combustible and substantially impermeable air barrier 126 is provided between the downstream end of the combustible heat source 102 and the upstream end of the aerosol forming substrate 104. As shown in Figure 1, the non-combustible barrier and substantially air-tight consists of a non-combustible and substantially air-tight barrier coating 126, which is provided over the entire end face of the carbonaceous heat source 102.
[0076] A heat conducting element 128 consists of an aluminum layer, preferably aluminum foil, which surrounds and is in direct contact with a rear portion 130 of the carbonaceous heat source 102 and a contiguous boundary portion 132 of the substrate of aerosol formation 104. As shown in Figure 1, a rear portion of the aerosol forming substrate 104 is not surrounded by the heat conducting element 128. In an alternative embodiment not shown, a second heat conducting element involves at least a portion of the heat conducting element 128. At least part of the second heat conducting element is radially separated from the heat conducting element 128, by one or more layers of heat insulating material, such as paper.
[0077] As shown in Figure 1, the portion 118 of the external enclosure that forms part of the removable cover overlaps the rear portion 130 of the heat source 102.
The air flow guiding element 106 is located downstream of the aerosol-forming substrate 104 and comprises a hollow cone substantially impermeable to air and with an open end 134 made of, for example, cardboard, which is in diameter reduced when compared to aerosol forming substrate 104. The upstream end of the hollow open end tube 134 is contiguous to the aerosol forming substrate 104. The hollow end open tube 134 is enclosed by an air permeable annular diffuser 136 made of, for example, cellulose acetate fiber, which has substantially the same diameter as the aerosol-forming substrate 104.
[0079] The open-ended hollow tube 134, and the air-permeable annular diffuser 136 may be separate components that are suitable or otherwise connected so as to form the airflow guiding element 106 prior to mounting the smoke article 100. For example, the open-ended hollow tube and the air-permeable annular diffuser may be part of a single hollow tube of air-permeable material containing a substantially air-impermeable coating applied to the internal surface.
[0080] In a particularly preferred embodiment, the central portion 116 of the removable cover 114 is manufactured from the same material as the air flow directing element, and therefore comprises an open-ended hollow tube.
[0081] As shown in Figure 1, the open-ended hollow tube 134 and the air-permeable annular diffuser 136 are circumscribed by an air-permeable inner shell 138.
[0082] As also shown in Figure 1, a circumferential arrangement of air inlets 140 is provided in housing 112 that circumscribes inner housing 138.
[0083] The second multi-segmented component comprises an expansion chamber 108 which is located downstream of the air flow directing element 106 and comprises an open-ended hollow tube 142 made of, for example, cardboard, which has substantially the same diameter than the aerosol-forming substrate 104.
[0084] The second multisegmented component also comprises the nozzle 110 of the smoke article 100, which is located downstream of the expansion chamber 108 and comprises a cylindrical plug 144 of cellulose acetate fiber of very low filtering efficiency circumscribed by a filter plug 146. The first multi-segmented component and the second multi-segmented component are circumscribed by the outer wrap 113, such as tip paper.
[0085] According to the preferred modality, the first with multisegmented component is manufactured by feeding individual fuel heat sources 102 from a funnel to a mobile delivery route. The aerosol forming substrates and airflow directing elements are also fed to a mobile delivery route, and are jointly compacted with individual heat sources to form discrete multithreaded components. Each discrete multisegmented component is directly adjacent to the additional multisegmented component, and there is no need for a gap.
[0086] Discrete multi-segmented components are wrapped in a network of material that is provided with spaced lines of weakness. The lines of weakness comprise a plurality of perforations that are formed prior to the step of wrapping the multi-segmented components using a laser. Alternatively, the lines of weakness can be formed mechanically, using, for example, a toothed wheel, a series of blades, an impactor or a combination of any of these methods. Alternatively, perforations can also be formed after the packaging step.
[0087] An adhesive is provided on the inner surface of the mesh material to affix the mesh of material to the components of the multi-segmented components. The adhesive is broken in the region near the lines of weakness to allow the removable cover to be removed more easily.
[0088] As can be seen in Figure 2, the continuously balladed series of discrete multi-segmented components 200 are cut using a cutter 202 to form individual multi-segmented components. The cutter is oriented so that a portion 204 of the airflow directing element is cut at the first distal end of the multi-segmented component, thereby forming a removable cover, affixed to the multi-segmented component in the line of weakness. In this way, an efficient manufacturing process is provided.
[0089] The first multisegmented components 200 are each combined with additional second multisegmented components comprising an expansion chamber and a nozzle. The first and second multisegmented components are combined by feeding a continuous flow of first and second multisegmented components into a mobile delivery route, the joint compaction of the first and second multisegmented components, and then packaging both components in an external enclosure , such as paper tip, to join them together. In this way, a smoking article with a removable cover is provided.
[0090] As can be seen in Figures 3, 4 and 5, additional modalities of removable shells in multi-segmented components of smoking articles are provided. The modalities shown in Figures 3, 4 and 5 are manufactured in a similar way to the modality of Figure 1 described above.
[0091] Figure 3 represents a first multisegmented component 300 comprising a seal flap 302 provided between housing 304 and heat source 305. The seal flap is provided adjacent to the weakness line 306, and allows the user remove the removable wrapping portion 307 from wrapper 304 more easily. The multi-component segment shown in Figure 3 is manufactured by providing a strip of material, such as aluminum foil, on the inner surface of the wrapping material network before they are wrapped the elements, such as the heat source, the aerosol-forming substrate and the airflow directing element. The strips of material can be aligned with pre-formed lines of weakness, or the lines of weakness can subsequently be formed after the packaging step in a manner similar to the above described.
[0092] Figure 4 represents an additional embodiment of a multicomponent segment 400, in which a non-linear cut 402 is provided in the casing that extends from the distal end of the multisegmented component to the line of weakness. The non-linear cut, in this modality, is in a semicircle format. The butcher provides a sealing flap, and allows the user to remove the removable wrap more easily. The non-linear cut extends substantially parallel to the longitudinal axis of the multi-segmented component.
[0093] Figures 5a and 5b represent additional multithreaded components according to an embodiment of the present invention. The multi-segmented component 500 has the weakness line 502 provided in the housing. When in use, the user removes the removable portion of the wrapper by breaking the wrapper along the tear line starting at the free end 504, as shown. The multisegmented component 506 has a line of weakness 508 that extends linearly from the distal end of the multisegmented component. When in use, the user removes the removable casing by tearing the casing from the distal end towards the proximal end of the multisegmented component, then subsequently tearing the casing circumferentially around the multisegmented component. In additional embodiments (not shown), the weakness line 502 in the enclosure is provided in combination with a weakness line 508 that extends longitudinally from the distal end of the multi-segmented component. When in use, the user removes the removable wrapper by tearing the wrapper along the line of weakness 508 from the distal end towards the proximal end of the multisegmented component, and then subsequently tearing the wrapper circumferentially along the line. weakness 502 and around the multithreaded component.

权利要求:
Claims (12)
[0001]
1. Method of manufacturing multi-segmented components for smoking articles (100), each having a removable housing (118), characterized by the fact that it comprises: feeding a flow of heat sources (102), forming substrates aerosol (104) and caps (114) along the mobile delivery route; compacting in groups of at least one heat source (102), an aerosol-forming substrate (104) and a lid (114), each group corresponding to at least one multi-segmented component, each multi-segmented component having a first end adjacent to the heat source and a second end adjacent to the aerosol forming substrate and each cap having a first end and a second end positioned adjacent to the heat source; the packaging of heat sources, aerosol forming substrates and caps in a material network, with the material network spaced lines of weakness; and cutting the material web in a position close to the first end of the discrete multi-segmented component and adjacent to the first end of the lid, in which at least a portion of the material web forms a removable shell (118), the shell being removable by means of rupture of the housing (112) in its respective line of weakness (120), and in which the removable housing, in combination with the cover, forms a removable cover to protect the heat source.
[0002]
2. Method of manufacturing multi-segmented components for smoking articles (100), each having a removable housing (118), characterized by the fact that it comprises: feeding a flow of heat sources (102), subtracts forming aerosol (104) and elongated segments (106) along a mobile delivery route; compacting in groups of at least one heat source (102), an aerosol-forming substrate (104) and an elongated element (106), each group corresponding to at least one multi-segmented component (200), each multi-segmented component having a first end adjacent to the heat source, a second end adjacent to the aerosol forming substrate and an elongated segment positioned at a second end; the packaging of heat sources, aerosol forming substrates and elongated segments in a material network, with the material network spaced lines of weakness; and cutting the material web in a position close to the first end of the discrete multi-segmented component, in which at least a portion of the material web forms a removable shell (118), the shell being removable by breaking the shell (112) in its respective line of weakness (120), and where the web of material is cut so that a portion (204) of the elongated segment of a discrete multisegmented component, in combination with the removable housing (118) of a multisegmented component adjacent, forms a removable cover (114).
[0003]
Method according to claim 1 or 2, characterized in that it additionally comprises the alignment of each line of weakness (120) in such a way that each is in proximity to a respective heat source (102).
[0004]
4. Method according to claims 1, 2 or 3, characterized by the fact that it comprises the application of an adhesive away from the weakness line (120), for fixing the housing (112) to the heat source (102 ) and the aerosol forming substrate (104).
[0005]
Method according to any one of claims 1 to 4, characterized in that the spaced lines of weakness (120) are arranged in such a way that they circumscribe the discrete multi-segmented component.
[0006]
Method according to any one of claims 1 to 5, characterized in that an additional set of spaced lines of weakness (402, 508) is arranged in such a way that the lines are substantially parallel to the longitudinal axis of the components discrete multisegmentation.
[0007]
Method according to claim 6, characterized by the fact that each line of weakness (402, 508) in the additional set of spaced lines of weakness has a length of at least 50% of the length of the heat source (102) .
[0008]
8. Method according to claims 6 or 7, characterized by the fact that each line of weakness (402) is non-linear.
[0009]
Method according to any one of the preceding claims, characterized in that it additionally comprises the application of a strip of material to the material network adjacent to each line of weakness (120) configured to extend from an edge of the material web, and through at least a portion of the material web, in which the material strip forms a seal flap for removal of the removable wrap (118).
[0010]
Method according to any one of the preceding claims, characterized by the fact that it additionally comprises drilling the web of material to form the lines of weakness (120).
[0011]
11. Method for the manufacture of smoking articles (100), characterized by the fact that it comprises: feeding a stream of first multi-component segments manufactured according to any one of claims 1 to 10, to a receiving medium; feeding a stream of second multi-component segments, each comprising at least one nozzle (110), to the receiving means; and the combination of a first multisegmented component and a second multisegmented component when packaging at least a portion of the first and second multisegmented component in a network of material to form an individual smoke article (100) that has a wrapper removable (118) at a distal end and a mouthpiece at a proximal end.
[0012]
12. Method according to claim 11, characterized by the fact that during the stage of combining the first multisegmented component and the second multisegmented component, the first multisegmented component is additionally packaged with a heat conducting element (128), wherein said lines of weakness (120) and heat conducting element are positioned in such a way that they do not overlap each other.

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法律状态:
2018-11-21| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

2019-10-08| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

2020-11-17| B09A| Decision: intention to grant|

2021-01-26| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 06/12/2013, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

申请号 | 申请日 | 专利标题

EP12196194.0|2012-12-07|

EP12196194|2012-12-07|

EP12196395|2012-12-10|

EP12196395.3|2012-12-10|

PCT/EP2013/075856|WO2014086999A1|2012-12-07|2013-12-06|Method and apparatus for manufacturing smoking article components having a removable wrap|

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