WO2012156694A1 - Additive release component - Google Patents
Additive release component Download PDFInfo
- Publication number
- WO2012156694A1 WO2012156694A1 PCT/GB2012/051038 GB2012051038W WO2012156694A1 WO 2012156694 A1 WO2012156694 A1 WO 2012156694A1 GB 2012051038 W GB2012051038 W GB 2012051038W WO 2012156694 A1 WO2012156694 A1 WO 2012156694A1
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- WO
- WIPO (PCT)
- Prior art keywords
- additive
- release component
- additive release
- component
- filter
- Prior art date
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- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 235000001019 trigonella foenum-graecum Nutrition 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 235000015041 whisky Nutrition 0.000 description 1
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
Definitions
- the present invention relates to additive release components suitable for use in smoking articles and smoking article filters.
- smoking article includes smokeable products such as cigarettes, cigars and cigarillos whether based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes and also heat-not-burn products (i.e. products in which flavour is generated from a smoking material by the application of heat without causing combustion of the material).
- smoking articles are provided with filters for removing constituents from the smoke.
- additive release components containing additives such as flavour ants inside smoking articles. By applying force to the outside of the smoking article, the smoker may break the additive release component and release the flavourant.
- a smoker wishing to add flavour to the smoke may do so by simply squeezing the smoking article.
- an additive release component for use in a smoking article having a filter, the component comprising a rupturable shell containing an additive, wherein the component is configured to eject the additive into the filter of the smoking article in a predetermined direction in response to compression of the component.
- the shell has a three-dimensional shape which causes it to rupture in a predictable and consistent way n response to compression.
- the three-dimensional shape of the shell concentrates the compressive force applied to the additive release component on a limited area of the shell so that the shell ruptures in a predetermined region.
- the shell has a three-dimensional shape which forces the contained additive in a pre-determined direction prior to and/or upon rupture of the shell. In some embodiments, the shell has a three-dimensional shape which is not
- the additive release component is not spherical. In some embodiments, the additive release component is ovoid, conical, hemispherical, trapezoidal, or pyramidal.
- the shell does not include an area or line of weakness formed by creating a recess, hole or groove in the shell.
- a filter for a smoking article comprising an additive release component in accordance with the first aspect is provided.
- the filter further comprises a secondary element.
- This secondary element may be a support structure within which the additive release component is positioned, and/or the secondary element may comprise a wicking element.
- the additive release component is aligned with a longitudinal axis of the filter.
- the additive is released from the component in a direction parallel to a longitudinal axis of the filter.
- a smoking article comprising an additive release component in accordance with the first aspect, or a filter in accordance with the second aspect, is provided.
- Figure l shows a smoking article filter comprising an additive release component in accordance with a first embodiment
- Figures 2A and 2B show an additive release component support structure with and without an additive release component in accordance with a second embodiment
- Figure 3 shows an exploded side elevation view of a smoking article comprising an additive release component according to the second embodiment within a support structure.
- An additive release component is anything which is capable of retaining an additive and releasing it as and when desired.
- the additive release component may be a capsule or other container and may comprise a sponge-like material, an adsorbent material, a gel material, or any other suitable material.
- the additive may be released from the additive release component when compressive force is applied to the additive release component. In some embodiments, the additive is released in a predetermined direction.
- additive When additive is released from known additive release components, for example by rupture of the component, the rupture may occur in any region of the surface of the component.
- the additive may be released in any direction into the surrounding smoking article material, and is not directed in a predetermined direction.
- the additive may additionally or alternatively be released generally with relatively little dispersion from the site at which the additive release component is ruptured.
- the extent of this release of the additive is not predictable, being dependent in part on the force applied to rupture the additive release component. This means that the amount of additive provided within the additive release components must be greater than is necessarily required in order to ensure deposition in the desired areas of the smoking article.
- the additive release component comprises a rupturable shell containing an additive.
- this configuration may be described as comprising an outer shell and a central core, and the additive may be held in the central core.
- the core may simply be a cavity in which the additive is held.
- the core may comprise a sponge-like material, an adsorbent material, or a gel material, in which the additive is held.
- the additive may be released from the additive release component by any suitable means.
- force exerted on the additive release component for example by the user applying a compressive force, may induce release of the additive. This may involve rupture of the additive release component. Additionally, or as an alternative, this may involve squeezing the additive from an additive release component comprising a porous or spongy material.
- the additive release component may be arranged so that upon actuation of the additive release component, for example by the application of a force such as a compressive force, the additive is ejected, squirted or driven forcefully from the additive release component, and is thus deposited further from the additive release component and optionally over a larger area than is possible when conventional additive release components are ruptured. Since the direction of release is predetermined, the additive may be squirted or driven from the additive release component in a particular direction.
- a force such as a compressive force
- conventional capsules may rupture in a random manner and, rather than being forcefully ejected, the additive may passively seep out of the ruptured capsule, remaining in the vicinity of the capsule in a relatively localised and concentrated manner.
- Directional release of the additive means that the additive is released from the additive release component in a specific, predetermined direction, which is predictable and consistent.
- Directional release may be a consequence of, and may be equivalent to, directional rupture of the outer shell, which may result in release of the additive in the direction facilitated by the rupture.
- the shape of the additive release component used may determine the directional release of the additive from the additive release component. For example, rupture of the outer shell of the component may provide directional release of the additive in a predetermined direction.
- the outer shell has a three-dimensional shape which causes it to rupture in a predictable and consistent way upon compression.
- the rupture of the outer shell may, for example, be predictable and consistent because the three- dimensional shape of the outer shell focuses the compressive force applied to the additive release component so that the force is greater in a predetermined region of the outer shell, causing it to rupture.
- This type of focussing of the applied force is not possible with outer shell having a spherical or other symmetrical shape, such as tube having a circular, hexagonal or any other regular and consistent cross-sectional shape and are, and so in some embodiments, the outer shell does not have such a three- dimensional shape.
- the outer shell has a three-dimensional shape which is symmetrical about a plane perpendicular to the longitudinal axis of the smoking article in which the additive release component is incorporated.
- the outer shell does not have this type of three-dimensional shape.
- the outer shell may be beneficial for the outer shell to have a three- dimensional shape which forces the additive within the central core in a predetermined direction upon application of the compressive force prior to and/or upon rupture of the outer shell.
- the movement of the additive may contribute to the rupture of the outer shell, as the additive may apply pressure to the shell.
- the additive release component is not spherical.
- the additive release component is ovoid, conical, hemispherical, trapezoidal, or pyramidal.
- the outer shell is formed from a single part, rather than being formed by sealing two or more parts together,
- the additive release component may be further encouraged to directionally release the additive by means of a line, a point, and/or an area of weakness in the outer shell of the additive release component.
- This weakness may be configured to rupture in preference to the remainder of the additive release component when compressive force is applied to the component.
- the line, point or area of weakness is created by virtue of the three-dimensional shape of the outer shell, rather than by forming holes or grooves in the material of the outer shell.
- the additive release component may comprise two different materials, one of which may be inherently more susceptible to rupture than the other.
- the additive release component may be a capsule, as shown in the embodiments of the accompanying Figures.
- Capsules generally comprise an outer shell, which may be made of gelatine, and an inner core comprising the additive.
- Figure l shows a smoking article io comprising a cylindrical rod of smokeable material, in this case tobacco n, and a filter 12.
- the filter 12 comprises a substantially cylindrical plug of filter material 13, which is wrapped in a plugwrap (not shown).
- the rod of smokeable material 11 is aligned with the filter 12 such that the end of the tobacco rod 11 abuts the end of the filter 12.
- the rod is wrapped in a paper wrapper (not shown), and is joined to the filter 12 by tipping paper (not shown) in a conventional manner.
- An additive release component 14 comprising an additive 15, which in this embodiment is a flavourant (such as menthol), is situated within the filter 12.
- the additive release component is a gelatin capsule.
- the additive release component has an ovoid (or egg-shaped) configuration, having a first end that has a more rounded shape 14a, and a second end that has a more pointed shape 14b.
- the ovoid additive release component 14 is situated substantially within the centre of the filter 12, with the longitudinal axis of the additive release component 14
- the ovoid additive release component is aligned so that the more rounded end 14a faces the distal (tobacco rod) end of the filter, and the more pointed end 14b faces the mouth end of the filter. Due to the shape of the additive release component and engineered lines of weakness within the additive release component structure (not shown), the pointed end 14b of the additive release component is more susceptible to rupture under force than the remainder of the additive release component 14. In use, compressive force exerted on the filter 12 in the region of the additive release component 14, as shown by the arrows A in the accompanying Figure, causes rupture of the additive release component, and release of the flavourant 15.
- the additive carried by the additive release component is directionally released in a controlled manner in a predetermined direction.
- the additive release component may comprise a sponge-like porous material, which may be compressible.
- the additive may be distributed within the sponge-like material, and optionally, absorbed by the sponge-like material, which may release the additive by diffusion, or when compressed.
- a sponge-like material may be a body of absorbent material impregnated with the additive, which is progressively compressible and configured to release at least a part of the additive contents when partly compressed.
- the sponge-like material may comprise a matrix with a closed cell structure, in particular, a closed cell foam structure.
- the closed cell foam defines a matrix having a plurality of small cavities which may contain additive. The cavities are closed by the foam material, retaining the additive until selective release. On application of a compressive force, the closed cell foam may be configured to release additive.
- the sponge-like material may be coated in a second material, which may form an outer shell encompassing the sponge-like material.
- This outer material may function to retain the smoke modifying material within the sponge-like material until release of the contents is desired, at which time external force exerted by the user may rupture the outer shell and squeeze the additive from the sponge-like material.
- this sponge-like material may be replaced by any porous material which is capable of carrying an additive.
- This material may be, for example, an adsorbent material, or a gel material.
- the additive release component is arranged so that under the application of compressive force, the additive is ejected, squirted or driven, optionally forcefully driven, from the additive release component.
- the additive release component may be configured such that additive is released via a small region of the component.
- the additive may be driven out of the additive release component via this small region.
- the additive may be deposited further from the additive release component than is possible when additive is released from known additive release components, and/or may be deposited over a larger area, and/or may be deposited over a predetermined area of the filter.
- the additive release component or components may be further carried in a second additive release component, or a sheath, or the like.
- additive release component stability may be used to tailor additive release component stability, strength, rupture resistance, processing ease in manufacture, etc.
- the additive release component may comprise a core, which may be divided into two or more separate chambers, for example by means of one or more septa or other internal barriers.
- the septa or barriers may be composed of the same material as the additive release component, or a different material may be used.
- the septum or barrier may be frangible, or may be highly resistant to fracture, for example by means of being highly robust or flexible.
- the separate chambers of the additive release component core may comprise the same additive, or different additives.
- the chambers may also comprise multiple reagents, one or more of which may not function independently as an additive, but which reagents react or mix together to form an additive.
- the two more additives may chemically react, for example, to produce an exothermic or endothermic reaction.
- the additives could be an organic acid and an alcohol which react to form an ester.
- the additive release component may have a crush strength of between 0.5 and 2.skp, for example between 1 and 2kp. Higher and lower crush strengths may be possible, for example where the additive release component is incorporated within the smoking article in combination with a secondary element which is a support structure as discussed below. Such a structure may facilitate the crushing or rupture of the additive release component, enabling components with higher crush strengths to be used.
- the size of the additive release component may be dependent on the volume of additive required, which in turn may be dependent on a number of factors, including the potency of the additive and the degree of smoke modification desired. It may be preferable for the volume of the additive release component to be as large as possible, so that as much additive as possible is provided, to modify the smoke as significantly as possible. The additive release component should not be so large however, that acceptable filtration or draw characteristics of the smoking article or smoking article filter are not provided. Furthermore, as the size of the additive release component is increased, the risk of accidental damage and/or release of additive from the additive release component are also increased. When additive is released from known additive release components, the release may occur from any region of the additive release component surface.
- the additive may be released from the additive release component in any direction into the surrounding material of the smoking article.
- the additive may additionally or alternatively be released generally with relatively little dispersion from the site of release from the additive release component.
- the extent of this release of additive is not predictable, and may, for example be dependent in part on the force applied to the additive release component. Since the direction and extent of release of additive from known additive release components is not predictable, then the amount of additive provided within the additive release components must be greater than is necessarily required in order to ensure deposition in the desired areas of the smoking article. Consequently, the additive release components themselves must also be larger.
- additive is directionally released from the disclosed additive release components in a predetermined, controlled and predictable direction. Therefore, the distribution of additive is more efficient, and smaller additive release components may be used than was previously possible. Alternatively, additive release components having similar sizes to those used previously may be used to deliver a significantly greater amount of additive to a desired location within the smoking article.
- the additive release component may be arranged longitudinally within the smoking article or smoking article filter, as shown in the accompanying Figure 1. That is, the longest dimension of the additive release component may be substantially parallel with a longitudinal axis of the smoking article.
- the additive release component is aligned with a longitudinal axis of the filter, and the additive may be released from the component in a direction parallel to a longitudinal axis of the filter. Indeed, the additive may be released into the filter in any specific direction, and may be directed towards a particular region of the filter.
- the region may be, for example, a cavity, a particular region of filter material, or a peripheral region of the smoking article filter.
- the region into which the additive is released may comprise an active component, such as a second additive, which may or may not be held by an additive release component.
- the length of the additive release component may be between imm and 15mm, and preferably between 3mm and 10mm.
- the diameter may be within the range 0.1mm to 4mm, and more preferably between imm and 3mm.
- additive release components may all be directional release additive release components, or may be a combination of known and directional release additive release components.
- the additive release components may have the same or different shapes, and may be of the same or of different sizes.
- the multiple additive release components may release additive in the same direction, towards each other, or towards a common target area, for example.
- the multiple additive release components may be engineered to release additive substantially simultaneously in response to a single application of compressive force on the smoking article.
- the smoking article may require a number of sequential applications of force for release of the additive from all of the additive release components.
- the additive release components may be arranged to directionally release the additives into substantially the same location within the smoking article, or each additive release component may have a different target area of directional release.
- the smoking article may comprise two, three, four or more additive release
- Multiple additive release components may be positioned, for example, at regularly spaced intervals along the length of the smoking article. Alternatively, multiple additive release components may be situated as a cluster, for example, within the smoking article filter. In some embodiments, the additive release components may be situated within a cavity formed between two sections of filter material.
- the directional release of additive from additive release components in smoking articles in accordance with the invention may be achieved by means of the additive release component having a particular shape. Different three-dimensional shapes possess an inherent capacity to release their contents in a predictable fashion when exposed to a force such as a compressive force. Therefore, different shaped additive release components may be used to ensure directional release of additive in a predetermined, highly controlled and predictable manner and direction.
- additive release component may, for example, be approximately ovoid (as shown in the accompanying Figure l), conical, hemispherical, trapezoidal, pyramidal, and so on. In some circumstances however, more regularly shaped additive release components, such as oblate, ellipsoidal, cubic, etc. may be used.
- the additive release component is non-spherical.
- the additive release component may or may not have a 'cigar' shape, comprising a cylinder with domed ends, such as may be used, for example, for release components in the pharmaceutical industry.
- Lines, points, or areas of weakness may additionally be provided within the structure of the additive release component, to further ensure that the release follows a desired pattern, and the additive is released in a predetermined direction.
- the additive release component may comprise an outer shell, which may be weakened or provided with increased resilience in desired areas. Strengthening of additive release components in particular areas may be achieved, for example, by providing an increased shell thickness in selected areas. Points of weakness may be introduced by means of a region of reduced shell thickness, or by means of scored lines.
- Additive release components comprising two different materials may be used, wherein the materials possess inherently different capacities to release additive under the application of force.
- the less resilient material may form a zone or window, from which point the additive is directionally released when force is applied to the additive release component.
- the manner in which the additive release component is formed may also be used to provide a predictable directional release of additive.
- the additive release component may, for example, be a multi-part additive release component, comprising a number of sections joined at one or more seams. In this case, the additive release component may be constructed to rupture along a seam section.
- the outer shell of the additive release component is formed from a single part.
- the core may be divided into two or more (such as 3, 4, or 5) separate chambers, for example by means of one or more septa, or other internal barriers.
- the separate chambers of the core may comprise the same additive, or different additives.
- the chambers may also comprise two reagents, one or both of which may not function as additive, but which reagents react or mix together to form an additive.
- the additive release component may be incorporated within the smoking article in combination with a secondary element which functions to further ensure that the additive is released from the additive release component in a predetermined direction.
- the secondary element may function to direct the force applied to the smoking article onto the additive release component in a particular manner.
- the secondary element may be a shield, which prevents force from being applied to a particular area of the additive release component.
- the secondary element may provide a reaction surface against which the additive release component may be compressed.
- the secondary element may alternatively focus the force applied to the smoking article on a particular area of the additive release component.
- the secondary element may be an additive release component support structure.
- a support structure is a structure which supports an additive release component and which may be positioned within a smoking article.
- the additive release component support structure may allow controlled release of the additive from the additive release component.
- the support structure may function to focus the force applied to the smoking article on a particular area of the additive release component.
- the support structure may comprise a spike or point which, when force is applied to the smoking article, is brought into contact with the additive release component and thereby focuses the force on a predetermined area of the additive release component.
- the support structure may allow further control of the release of additive from the additive release component.
- release may be controlled in terms of the timing of release, the quantity of release, and/or the duration of release.
- Figures 2A and 2B show an additive release component 20 according to a second embodiment, in which the additive release component is located within a support structure 21.
- the additive release component is a gelatin capsule.
- the additive release component has an ovoid (or egg-shaped) configuration, having a first end that has a more rounded shape 20a, and a second end that has a more pointed shape 20b.
- the outer circumference of the additive release component support structure 21 matches or is slightly smaller than that of the smoking article in which the support structure is to be used.
- the support structure 21 has the form of a ring or hollow cylinder having a number of axial corrugations 22. In the embodiment shown, the support structure has 8 corrugations. In other embodiments, the support structure may have between 2 and 16 corrugations. For example, the support structure may have 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, or 15 corrugations.
- the supports of Figures 2A and 2B can be described as a petaloid shape having a plurality of joined petals or lobes.
- Each petal or lobe includes a radially outward segment and two generally radial segments.
- the radially outward segment has a radially outward surface that is adapted to contact the inner cylindrical surface of the smoking article, and an opposing radially inner surface.
- the radially outward surface has first and second ends, each of which are attached to a radially outward end portion of one of the generally radial segments.
- Each generally radial segment, as illustrated, includes the aforementioned radially outward end portion and a radially inward end portion.
- the radially inward end portions of each petal or lobe is attached to the radially inward end portion of an adjacent petal or lobe.
- the support thus can act to grasp and retain an additive release component by being radially expanded slightly.
- the corrugations are in the form of axial grooves 23.
- the corrugations On the inner surface of the support structure, the corrugations have tapered ends 24, which project into the central core of the support structure 21.
- the additive release component 20 may be positioned within the centre of the additive release component support structure 21, such that the
- longitudinal axis of the additive release component 20 substantially corresponds to the central axis of the support structure 21.
- the ends of the projections 24 of the support structure are shaped to receive the additive release component 20.
- the distance between the tapered ends of opposing projections 24 is greater than the diameter of the capsule 20.
- the capsule is retained within the additive release component support structure by means of flanges 25 on the projections 24.
- the axial corrugations 22 reduce the rigidity of the additive release component support structure 21, particularly in response to compressive force applied to the additive release component support structure in any lateral direction. In response to such force, applied for example by the user's fingers, the additive release component support structure 21 deforms from an approximately circular into a more elliptical cross- sectional shape.
- deformation in response to compressive force reduces the distance between at least one pair of opposing projections 24 of the support structure 21.
- the force is transmitted via the projections 24 to predetermined locations on the surface of the rounded end 20a of the additive release component.
- the pointed end 14b of the additive release component is more susceptible to rupture under force than the remainder of the additive release component 14 due to engineered lines of weakness within the additive release component structure (not shown). As compressive force is applied to the support structure 21, the component 20 is ruptured at the pointed end 14b in a predictable manner, and the additive is
- FIG. 3 shows an exploded view of a smoking article comprising an additive release component 20 according to the second embodiment located within a support structure 21.
- the smoking article comprises a rod of smokeable material 26, and a filter 27.
- the filter 27 is a triple filter arrangement, in which the support structure 21 holding the additive release component 20 is situated between two sections of cellulose acetate filter material, 28 and 29. The filter sections are combined to form the filter 27 by means of a plugwrap (not shown), and attached to the rod of smokeable material 26 by means of a tipping paper (not shown) in a known manner.
- force exerted on the filter 27 in the region of the support structure 21 in any lateral direction, by the user causes deformation of the support structure, as described above, and release of additive from the additive release component 20 in a
- the size and shape of the additive release component support structure is preferably determined in combination with the size and shape of the additive release component to be used.
- the additive release component may be supported by the support structure, and the support structure may offer physical protection to the additive release component until such time that the release of the additive is required.
- the additive release component support structure has a cross- sectional shape that is substantially similar to that of the smoking article in which the support structure is to be used.
- support structures for use in conventional cigarettes may be circular in cross-section. The reason for this is that the support structure may also function to provide shape, format, or strength to the smoking article.
- the additive release component support structure may comprise on its outer surface one or more pimples, grooves, raised elements, or any other deviation from a smooth surface.
- the support structure may be hexagonal or other polygonal, elliptical, or irregular shape in cross-section, rather than circular.
- Such elements may be detectable to the user of the smoking article, and may thus provide an indication of the position of the additive release component support structure in the smoking article or smoking article filter, and the region of the support structure to which activating force must be applied in order to induce the release of additive from the additive release component.
- the additive release component support structure may also provide feedback to the user that the additive has been released from the additive release component. Feedback may be in the form of an audible sound, and/ or a detectable change in the conformation of the support structure.
- the additive release component support structure may induce the release of the additive from the additive release component via any possible mechanism.
- the support structure may be configured to impart activating force on the additive release component to provide a pumped release, a directional release, a multi-stage release or a single release of additive.
- the type of release is dependent upon the particular type and shape of the support structure and additive release component used, and the materials from which they are manufactured.
- the additive release component support structure may be a moulded plastic structure.
- the support structure is manufactured from a biodegradable plastic such as PLA (polylactic acid), CA (cellulose acetate) or PVOH (polyvinyl alcohol).
- PLA polylactic acid
- CA cellulose acetate
- PVOH polyvinyl alcohol
- the support structure could in principle be produced using any mouldable plastic, ceramic, starch, paper, or other suitable material known to the skilled person.
- the additive release component support structure may induce the release of the additive from the additive release component in a single dose, in multiple doses, or by means of a variable release, for example in which the release is proportional to the strength or duration of force applied to the support structure. This may be achieved by appropriate selection of the material from which the support structure is manufactured. For example, if the support structure is moulded from a flexible plastic, then upon the application of force, following the activation, the support structure may return to its original conformation. In this case, depending on the nature of the additive release component, further additive may be released from the additive release component by subsequent applications of force to the support structure.
- the support structure is made from an inflexible material, such as an inflexible plastic, then as the support structure is activated, it may break.
- the additive release component may deliver a single release of additive.
- the secondary element may function to directly assist the directional release of the additive from the additive release component.
- the secondary element may be a funnel, a channel, or an adsorbent material, which assists the directional release of the additive from the additive release component.
- directional release may be enhanced by the use of wicking element, such as an absorbent material within the smoking article filter.
- the absorbent material is more absorbent than the filter material, which may be, for example, a fibrous tow such as cellulose acetate.
- the wicking element or elements may be positioned adjacent to the additive release component within the filter in the area in which directional release of additive from the additive release component is desired. In this way, the wicking element(s) may draw the additive in the desired direction.
- the wicking element may also be used to facilitate the transportation of the additive in a particular direction after the additive has been released from the additive release component.
- the additive may permeate through the wicking element at a faster rate than it may permeate through the filter material.
- the additive may be preferentially drawn along or through the wicking element. Therefore, the wicking element can dictate the direction in which the additive mainly disperses, and/or may affect the distance it travels. For example, the incorporation of a wicking element of a particular shape and in a particular position can result in the transportation of additive in a particular direction.
- Thin strands of absorbent material are particularly effective as a wicking element for the transportation of additive over longer distances.
- one or more strands of absorbent material may radiate from the additive release component and provide paths along which additive may be transported. Additive may even be directed to the external surface of the smoking article in this way.
- any suitable absorbent material may be used, for example, uncrimped cellulose acetate thread, other cellulosic materials such as hydroxymethyl cellulose, starch, or foamed polyvinyl alcohol may be used.
- the additive release component may be constructed from a frangible material.
- the additive release component is generally a single part additive release component.
- the additive release component is composed of a low solubility, high molecular weight polyvinyl alcohol.
- additive release components typically utilized in the pharmaceutical industry may be used.
- Such additive release components may be gelatin based, for example, or may be formed from a polymeric material, such as modified cellulose.
- modified cellulose which may be used is hydroxypropylmethyl cellulose.
- biodegradable materials which may be suitable for use in the production of additive release components and these include high molecular weight polyethylene glycols, polylactic acid, plastarch material, polycaprolactone, polyglycolide, a polyhydroxyalkanoate such as poly-3- hydroxybutyrate, and zein-derived bioplastics.
- the additive release component may comprise a hollow foodstuff material, such as, for example, pasta, or extruded hollow tubing of reconstituted tobacco material.
- the inner walls of the additive release component material may advantageously be coated with a varnish or waterproof material, such as silicone, to preserve the rigidity of the additive release component material by preventing absorption of, or degradation by, the liquid contents over a prolonged period.
- the additive release component may alternatively be comprised of a wax, resin, natural or synthetic gum, latex or plastic material which retains its shape and strength at room temperature and at smoking temperature but which is rupturable upon the application of external force.
- suitable waxes include beeswax, candelilla, carnauba, shellac wax, caranday, sugarcane wax, myrtle wax and petroleum wax.
- Suitable resins from which additive release components may be composed include epoxy resins, terpene resins, petroleum resins, ester gum, phenolic resins and rosin based resins.
- Preferred gums include gum arabic, locust bean, guar, alginates, carrageenan and pectin.
- any suitable sponge-like material may be used.
- the sponge-like material may be a foamed material, which may be a foamed plastic polymer such as polyvinyl alcohol (PVOH).
- the additive release component comprises an additive, which may be any substance that may be added to the smoke flow path, for example to modify the composition or properties of smoke.
- the additive held within the additive release component may be a deodoriser, a diluent, an adsorbent, or any other substance that is capable of modifying the gaseous flow.
- the additive may be water. Where local regulations permit, the additive may be a flavourant.
- the terms "flavour” and “flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste or aroma in a product for adult consumers. They may include extracts (e.g., licorice, hydrangea, Japanese white bark magnolia leaf, chamomile, fenugreek, clove, menthol, Japanese mint, aniseed, cinnamon, herb, wintergreen, cherry, berry, peach, apple, Drambuie, bourbon, scotch, whiskey, spearmint, peppermint, lavender, cardamon, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, piment, ginger, anise, coriander, coffee, or a mint oil from any species of the genus Mentha),
- extracts
- the additive comprises menthol or water.
- the flavour may be a tobacco flavour. Where the flavour is delivered in liquid form the tobacco flavour could be derived from tobacco extract. Where the flavour is derived from a solid product, the product could be tobacco leaf in shredded, particulate or granular form, or in the form of reconstituted tobacco sheet material.
- the additive may be a solid, such as a powder, a liquid, such as a liquid flavourant, deodoriser, water, etc, or a gas, such as an aromatic composition.
- the method of manufacture of the additive release component may be dependent on the precise composition and shape required. Any suitable method of manufacture may be used. For example, techniques including blow moulding, injection moulding, 3D printing and the use of Rotary Dies may be used. A combination of techniques may be used.
- the additive release component may be coloured.
- the additive release component may comprise a colouring agent.
- the colouring agent may be used to render more easily the location of the additive release component within the smoking article or smoking article filter during the manufacturing process.
- the colouring agent may provide an interesting appearance to the smoking article, particularly if the additive release component is intended to be only partially enclosed within the smoking article, or if, for example, the tipping paper is intended to have a transparent window portion.
- the additive held in the additive release component may be coloured. This may give the user an additional, visual indication that the additive has been successfully released, as the additive may be seen to be directionally released from the additive release component. This may be particularly useful if the additive release component comprises a combination of additives, wherein one of the additives is coloured, and thereby serves to indicate release of the other colourless additive(s).
- the additive When the additive is coloured, it may be desirable for the additive release component to directionally release additive into a region of the smoking article or smoking article filter in which the colour will be observed.
- the additive may be
- the coloured additive may be directionally released into a section of the smoking article that is visible via a transparent window portion.
- the smoking article may comprise a transparent window which may allow visualisation of the additive release component within the smoking article, such as within the filter.
- the user may be able to visualise the additive release component within the filter, and may be able to visually determine whether the additive has been released.
- the tipping or other wrapping paper may comprise a single piece of transparent material, which can be, but is not limited to, one of polypropylene, polyvinyl chloride (PVC), cellulose acetate film, polyethylene terephthalate (PET), polyethylene oxide (PEOX), polyethylene, cellophane,
- the additive release component may be manufactured using any suitable method, the method of manufacture of the additive release component clearly being dependent on the precise composition and make-up required. Any suitable method of additive release component manufacture may be used, including techniques such as co-extrusion, spin coating, coacervation, interfacial polymerization, solvent evaporation, and annular jet forming.
- the capsule may be produced using a co-extrusion process.
- the co-extrusion process is a synchronous extrusion of the two liquids that will subsequently form the shell and the capsule contents (or "core").
- the first (co-extrusion) step involves forming a droplet having the liquid core material inside the liquid shell material.
- the "capsule" is solidified by cooling or by immersion in a curing agent, for example.
- the capsules may then be subjected to various treatments, such as washing, removal of surplus liquid, colouring, application of additional coatings, etc.
- annular jet forming technique may be used. This method utilises two concentric jets to eject an inner jet of liquid core material and an outer jet of liquid shell material.
- the fluid stream breaks into droplets and the liquid shell material solidifies by phase transition induced by the presence of cross-linking ions, pH differences, temperature changes, etc.
- the capsule may be formed, for example, by a method comprising freezing a solution of the liquid core material until small crystals are formed. According to this method, the crystals are then dropped into molten wax and removed by spatula after a wax coat has formed around the cold crystals. The frozen core material gradually becomes liquid as the coated capsule reaches room temperature.
- Foamed sponge-like materials may be made using a foamed extrusion process.
- the additive release component may be incorporated at any location within a smoking article, for example, the additive release component may be located within the filter of a smoking article.
- Smoking articles generally comprise a rod of smokeable material and a filter. They extend in a longitudinal direction from a distal (ignition) end, from which the smoke is drawn into the smoking article, to a mouth end.
- a consequence of directional release is that additive may be directed into a specific region of a smoking article or smoking article filter.
- the additive release component may be configured to directionally release the additive in a direction aligned with the longitudinal axis of the smoking article, in other words, in the direction of the mouth end or distal end. Release into this region of the smoking article may maximise the degree of interaction of the additive with the smoke.
- the smoking article may comprise one or more additive release components that are arranged to directionally release additive towards a particular region of the smoking article or smoking article filter, which may be any region of the smoking article or smoking article filter.
- This region may comprise a material which is activated by the additive released from the additive release component.
- this material may comprise a solid that is active when in solution, and is thus activated by the action of additive in the form of water or a specific solvent.
- the target region of directional additive release may be a cavity within the centre of the filter, which may or may not comprise other active materials.
- the cavity may comprise crystalline flavourant, which may be activated when additive in the form of a solvent is directionally released into the cavity to contact the crystals.
- the cavity may comprise a material which is sensitive to additive in the form of water, for example, a material which in contact with water, changes colour, dissolves, makes a sound, emits a flavour or an odour, etc.
- the particular region to which additive is directed may be a region of filter material comprising a solid material in the form of small granules evenly distributed within the material.
- Such an arrangement may be useful, for example, when a granular crystalline flavourant is to be used in combination with an additive release component comprising a solvent additive.
- a plurality of additive release components may be used, from which additive may be sequentially released to provide flavourant over the duration of use of the smoking article.
- additive may be directed into the same or different regions of the granule-containing filter material.
- the region to which additive is directed may be a peripheral region of the smoking article or smoking article filter, such as a region at or near the circumferential surface of the smoking article, or at the mouth end of the filter.
- Such an arrangement may be suitable, for example, when the additive is a colourant, to provide an interesting appearance to the smoking article, and/ or to provide a visual indication that the additive has been released, for example, where the additive release component comprises a combination of a colourant in combination with a second additive.
- This arrangement may also be suitable when the additive is an odorant, to facilitate diffusion of the odour out of the smoking article.
- a smoking article or smoking article filter may comprise two or more additives, each carried within a separate additive release component. This arrangement may be suitable, for example, when the two or more additives chemically react, or where the additives are subject to oxidation, diffusion, or other means of loss of intensity over time.
- the two or more additive release components may be arranged to directionally release additive towards each other. Such an arrangement may be useful, for example, where the additives chemically react, such as to produce an exothermic or endothermic reaction, or a reaction in which an odour or a gas is evolved, or a colour or other visual effect is produced.
- the two or more additive release components may be arranged to directionally release additive towards a common region of the filter. This may be suitable where a significant quantity of additive is required to be supplied to a particular region of the filter, for example, where the additive is water, and the target region of the filter comprises a water sensitive material, such as a water swellable, water soluble, or water degradable material.
- the additive release components of the invention are designed to directionally release additive, then the orientation in which the additive release component is inserted into the smoking article or smoking article filter should be controlled.
- the specific shape of the additive release component of the invention may assist the additive release component insertion process.
- the centre of gravity of the additive release component is not located at the geometric centre of the additive release component, such as is the case with the ovoid additive release component shown in the accompanying Figures 1 and 2, then the additive release component will naturally assume a particular orientation, and this property may be utilised to ensure that the additive release component is inserted into the smoking article in the desired orientation.
- the additive release component may be inserted into the smoking article filter, and any suitable method may be used to insert the additive release component into the filter.
- Suitable apparatus may, for example, include a means for supplying a continuous stream of filter material from a source of such material (e.g., a bale, bobbin, or the like).
- the apparatus may further include an additive release component insertion unit for inserting or depositing the individual additive release components at predetermined intervals within the filter material.
- the filter material having additive release components deposited therein may then be received into a rod-making means for providing a continuous rod which may subsequently be subdivided into the desired length at predetermined intervals to form the individual filters of the invention.
- the additive release component may be inserted into a cavity within the filter, or known dual or triple filter combining techniques may be used.
- the additive release component may be incorporated into the filter using a vertical feed method.
- Embodiments of the invention are configured to comply with applicable laws and/or regulations, such as, by way of non-limiting example, regulations relating to flavours, additives, emissions, constituents, and/or the like.
- applicable laws and/or regulations such as, by way of non-limiting example, regulations relating to flavours, additives, emissions, constituents, and/or the like.
- the invention may be configured such that a smoking article implementing the invention is compliant with applicable regulations before, during and after the release of a smoke modifying agent from a capsule.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/116,960 US20140182614A1 (en) | 2011-05-13 | 2012-05-11 | Additive release component |
JP2014509830A JP2014516522A (en) | 2011-05-13 | 2012-05-11 | Additive release member |
MX2013013253A MX357164B (en) | 2011-05-13 | 2012-05-11 | Additive release component. |
BR112013029367A BR112013029367A2 (en) | 2011-05-13 | 2012-05-11 | additive release component, smoke filter and smoke article |
RU2013155223A RU2607879C2 (en) | 2011-05-13 | 2012-05-11 | Additive release component |
EP12722188.5A EP2706878A1 (en) | 2011-05-13 | 2012-05-11 | Additive release component |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1108058.7A GB201108058D0 (en) | 2011-05-13 | 2011-05-13 | Additive release component |
GB1108058.7 | 2011-05-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2012156694A1 true WO2012156694A1 (en) | 2012-11-22 |
Family
ID=44260511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2012/051038 WO2012156694A1 (en) | 2011-05-13 | 2012-05-11 | Additive release component |
Country Status (10)
Country | Link |
---|---|
US (1) | US20140182614A1 (en) |
EP (1) | EP2706878A1 (en) |
JP (3) | JP2014516522A (en) |
AR (1) | AR086376A1 (en) |
BR (1) | BR112013029367A2 (en) |
CL (1) | CL2013003250A1 (en) |
GB (1) | GB201108058D0 (en) |
MX (1) | MX357164B (en) |
RU (1) | RU2607879C2 (en) |
WO (1) | WO2012156694A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104936469A (en) * | 2013-03-26 | 2015-09-23 | 日本烟草产业株式会社 | Filter equipped with capsule having liquid encapsulated therewithin and smoking article provided with same |
CN105105328A (en) * | 2015-08-05 | 2015-12-02 | 湖北中烟工业有限责任公司 | Brittle solid spice bead for cigarette filter stick and preparation method thereof |
WO2017055456A1 (en) * | 2015-09-30 | 2017-04-06 | Philip Morris Products S.A. | Aerosol-generating article having dispersed flavourant |
WO2018078169A1 (en) * | 2016-10-31 | 2018-05-03 | Jt International Sa | Smoking article with liquid-filled directional capsule |
CN109890224A (en) * | 2016-10-31 | 2019-06-14 | Jt国际公司 | Smoking product with liquid-filling capsule |
US10602770B2 (en) | 2012-12-04 | 2020-03-31 | Philip Morris Products S.A. | Smoking article with transparent wrapper |
RU2749662C2 (en) * | 2016-12-29 | 2021-06-16 | Филип Моррис Продактс С.А. | Aerosol-generating product containing liquid delivery element |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
UA109858C2 (en) * | 2012-02-21 | 2015-10-12 | MULTI-ARTICLE ELEMENT FOR SMOKING PRODUCTS | |
JP3212228U (en) * | 2017-06-16 | 2017-08-31 | 株式会社 東亜産業 | Electronic cigarette cartridge using tobacco plant or non-tobacco plant and supporting member thereof |
GB201713129D0 (en) * | 2017-08-16 | 2017-09-27 | British American Tobacco Investments Ltd | Flour system |
WO2019069386A1 (en) | 2017-10-03 | 2019-04-11 | 日本たばこ産業株式会社 | Filtered smoking article |
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- 2012-05-11 RU RU2013155223A patent/RU2607879C2/en active
- 2012-05-11 EP EP12722188.5A patent/EP2706878A1/en not_active Withdrawn
- 2012-05-11 JP JP2014509830A patent/JP2014516522A/en active Pending
- 2012-05-11 WO PCT/GB2012/051038 patent/WO2012156694A1/en active Application Filing
- 2012-05-11 AR ARP120101684A patent/AR086376A1/en active IP Right Grant
- 2012-05-11 MX MX2013013253A patent/MX357164B/en active IP Right Grant
- 2012-05-11 BR BR112013029367A patent/BR112013029367A2/en not_active Application Discontinuation
- 2012-05-11 US US14/116,960 patent/US20140182614A1/en not_active Abandoned
-
2013
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Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10602770B2 (en) | 2012-12-04 | 2020-03-31 | Philip Morris Products S.A. | Smoking article with transparent wrapper |
EP2923588A4 (en) * | 2013-03-26 | 2016-10-12 | Japan Tobacco Inc | Filter equipped with capsule having liquid encapsulated therewithin and smoking article provided with same |
CN104936469A (en) * | 2013-03-26 | 2015-09-23 | 日本烟草产业株式会社 | Filter equipped with capsule having liquid encapsulated therewithin and smoking article provided with same |
CN104936469B (en) * | 2013-03-26 | 2018-10-09 | 日本烟草产业株式会社 | Filter tip equipped with the capsule for having enclosed liquid and the smoking article for having the filter tip |
CN105105328A (en) * | 2015-08-05 | 2015-12-02 | 湖北中烟工业有限责任公司 | Brittle solid spice bead for cigarette filter stick and preparation method thereof |
CN105105328B (en) * | 2015-08-05 | 2018-07-17 | 湖北中烟工业有限责任公司 | A kind of loud and clear solid spice pearl and preparation method thereof for cigarette filter rod |
WO2017055456A1 (en) * | 2015-09-30 | 2017-04-06 | Philip Morris Products S.A. | Aerosol-generating article having dispersed flavourant |
CN108024572A (en) * | 2015-09-30 | 2018-05-11 | 菲利普莫里斯生产公司 | Aerosol generation product with dispersed spices |
US11019843B2 (en) | 2015-09-30 | 2021-06-01 | Philip Morris Products S.A. | Aerosol-generating article having dispersed flavourant |
RU2707427C1 (en) * | 2015-09-30 | 2019-11-26 | Филип Моррис Продактс С.А. | Aerosol-generating article containing distributed flavoring agent |
WO2018078169A1 (en) * | 2016-10-31 | 2018-05-03 | Jt International Sa | Smoking article with liquid-filled directional capsule |
EA037343B1 (en) * | 2016-10-31 | 2021-03-15 | ДжейТи ИНТЕРНЕШНЛ СА | Smoking article with liquid-filled directional capsule |
CN109890224A (en) * | 2016-10-31 | 2019-06-14 | Jt国际公司 | Smoking product with liquid-filling capsule |
US11375746B2 (en) | 2016-10-31 | 2022-07-05 | Jt International S.A. | Smoking article with liquid-filled directional capsule |
RU2749662C2 (en) * | 2016-12-29 | 2021-06-16 | Филип Моррис Продактс С.А. | Aerosol-generating product containing liquid delivery element |
US11224251B2 (en) | 2016-12-29 | 2022-01-18 | Philip Morris Products S.A. | Aerosol-generating article comprising a liquid delivery element |
Also Published As
Publication number | Publication date |
---|---|
MX357164B (en) | 2018-06-28 |
US20140182614A1 (en) | 2014-07-03 |
JP2017164002A (en) | 2017-09-21 |
GB201108058D0 (en) | 2011-06-29 |
BR112013029367A2 (en) | 2017-01-31 |
JP2016073318A (en) | 2016-05-12 |
RU2013155223A (en) | 2015-06-20 |
AR086376A1 (en) | 2013-12-11 |
EP2706878A1 (en) | 2014-03-19 |
MX2013013253A (en) | 2014-02-27 |
RU2607879C2 (en) | 2017-01-20 |
CL2013003250A1 (en) | 2014-07-25 |
JP2014516522A (en) | 2014-07-17 |
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