RU2405810C1 - Flavouring particle and cigarette filter - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: flavouring particle comprises a carrier particle, glucan film deposited on the carrier particle, and a flavouring. Flavouring agent is retained by the flavouring particle so that emanation of flavour from aromatic substance is inhibited by the glucan film. However, the flavour is released with glucan film which is at least partially destroyed when glucan film is in contact with the main smoke stream. Cigarette filter may include this flavouring particle.

EFFECT: creation of a cigarette filter with a flavouring particle which prevents evaporation and migration of aromatic substance in non-smoking of cigarettes and provide with a stable sense of taste and aroma during the stages of smoking without making external effort.

11 cl, 4 dwg, 6 ex

Description

The present invention relates to a flavoring particle and a cigarette filter containing it.

Flavors and flavors added to the tobacco bag include a primary flavor (as a “sauce”) and a secondary flavor for an additional flavor. The components of the secondary flavor are relatively volatile and sensitive to pyrolysis. Therefore, the secondary flavor contained in the cigarette evaporates during storage, which leads to a decrease in flavor during smoking. In addition, in a cigarette having a carbon filter, the secondary flavor migrates into the carbon filter and is adsorbed in it, which leads to an additional reduction in flavor. A carbon filter having a secondary flavor adsorbed on it has a reduced ability to remove components from the mainstream tobacco smoke.

Japanese Patent 2709077 describes microencapsulation of a secondary flavor with a natural polysaccharide and the addition of microcapsules to a tobacco filter with the so-called void filling process. Since the flavor is encapsulated in microcapsules consisting of a natural polysaccharide, this will not cause migration or evaporation of the flavor during storage and, therefore, will not impair the ability of the charcoal filter to remove components from the main stream of tobacco smoke.

However, in microcapsules, the aroma can only be tasted by breaking or rubbing them with your fingers (using external force) while smoking. The application of external effort is annoying. In addition, the aroma released by external force will not evenly spread through the filter, resulting in an unstable aftertaste during smoking.

Accordingly, the present invention intends to provide an aromatic particle and a cigarette filter that can suppress evaporation and migration of aromatic and flavoring substances during non-smoking of cigarettes and provide a stable sensation of aroma and taste during the smoking stages without requiring external effort.

The present invention provides an aromatic particle (“aromatic bead”) containing a particulate carrier, a glucan film deposited on the carrier particle, and an aromatic substance, the aromatic substance being held on to the aromatic particle such that the release of aroma from the aromatic substance is suppressed by the glucan film, but the aroma is released by the glucan film, at least partially destroyed, when the glucan film is in contact with the main stream of tobacco smoke.

According to another aspect of the present invention, there is provided a cigarette filter comprising an aromatic particle of the present invention.

Figure 1 is an enlarged schematic cross-sectional view of an aromatic particle according to one embodiment of the present invention.

Figure 2 is an enlarged schematic cross-sectional view of an aromatic particle according to another embodiment of the present invention.

Figure 3 is a longitudinal sectional view of a cigarette equipped with a filter according to one embodiment of the present invention.

4 is a longitudinal sectional view of a cigarette equipped with a filter according to another embodiment of the present invention.

Various embodiments of the present invention will be described below with reference to the drawings.

Similar elements are denoted by the same reference numerals throughout the drawings.

The aromatic particle according to the invention includes a carrier particle, a glucan film deposited on the carrier particle, and an aromatic substance. The aromatic substance is retained by the aromatic particle such that the release of aroma from the aromatic substance is suppressed by the glucan film, but the aroma is released by the glucan film, at least partially destroyed, when the glucan film is in contact with the main stream of tobacco smoke.

According to a first embodiment of the present invention, the glucan film contains an aromatic substance and a flavor and directly covers the surface of the carrier particle. The aromatic particle according to the first embodiment includes a carrier particle and a glucan film covering the surface of the carrier particle and retaining the aromatic substance.

According to a second embodiment of the present invention, the aromatic substance is a solid aromatic substance that directly covers the surface of the granular carrier, and a glucan film covers the film of a solid aromatic substance. Each of the aromatic particles according to the second embodiment includes a carrier particle, a menthol film covering the surface of the carrier, and a glucan film covering the surface of the menthol film.

The carrier particle used in the invention may be a particle of calcium carbonate, activated carbon, sugar (sucrose) or coffee beans. Particles having an average size of from 75 to 2000 μm, for example from 75 to 350 μm, can be successfully used as a carrier particle.

A glucan film, for example, consists of pullulan, maltodextrin or hydroxypropyl cellulose and is water soluble.

The aroma and flavor may be the same for use in food and tobacco. Examples of such aromatics and flavors include lavender, cinnamon, cardamom, celery, cloves, cascarila, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, peppermint, cumin, cognac, jasmine, chamomile , menthol, cassia, ylang-ylang, sage, peppermint, fennel, pimento, ginger, anise, coriander and coffee essential oils.

1 is an enlarged schematic cross-sectional view of an aromatic particle 10 according to a first embodiment of the present invention. The aromatic particle 10 includes a carrier particle (core) 12, whose surface is coated with a glucan film 14. The glucan film 14 contains an aromatic substance.

The glucan film 14 containing the aromatic substance may be formed from an aqueous solution or an aqueous dispersion of aromatic substance and glucan. In an aqueous solution or aqueous dispersion, the aromatic substance is preferably used in an amount corresponding to 20% or less (but more than 0%) by weight of glucan. Glucan film 14 is not particularly limited in its thickness. However, bearing in mind the release of aroma during smoking, the glucan film is preferably formed by glucan in an amount corresponding to 0.25-5% by weight of the finished aromatic particle.

The aromatic particle according to the first implementation can be made, for example, in the following way. Namely, carrier particles of calcium carbonate or a similar substance are placed in a granulator with drying in a fluidized bed and an aqueous solution or aqueous dispersion of glucan containing an aromatic substance is continuously or periodically sprayed onto the surface of the dispersed carrier while at the same time being blown into the granulator, for example hot air at 80 ° C or lower, followed by drying. In this case, the carriers were immediately cooled depending on the type of aromatic substance or the composition of the glucan solution. In this way, a glucan film retaining the aromatic substance was formed on the surface of the carrier particles.

In the aromatic particle according to the first embodiment, evaporation and decomposition of the aromatic substance during storage can be suppressed, since the aromatic substance is contained within a glucan film, which has low gas permeability. Only after contact with the main stream of tobacco smoke during smoking does the glucan film partially dissolve mainly by the strongly polar components of the main stream of tobacco smoke (for example, water) and release an aromatic component that disperses into the main stream of tobacco smoke, thereby making a stable sensation possible smell of aromatic substance. The aromatic particle of the present invention does not require an external force to sense aroma, as was the case with microcapsules.

FIG. 2 is an enlarged schematic cross-sectional view of an aromatic particle 20 according to a second embodiment of the present invention. In the aromatic particle 20, the entire surface of the carrier particle (core) 22 is coated with a film 24 of a solid aromatic substance such as menthol, and the entire surface of the film 24 of a solid aromatic substance is coated with a glucan film 26.

As will be described later, a film of solid aromatic substance 24 can be formed by finely grinding crystals of a solid aromatic substance, such as menthol, mixing the resulting small particles of solid aromatic substance with particles of a carrier 12, thereby adhering small particles of solid aromatic substance to a particle of carrier 22, melting the fine particles of the solid aromatic substance on the particles of the carrier 22 by heating and then recrystallizing the solid aromatic substance by cooling denia. In order to prevent the growth of a solid aromatic substance, such as menthol, in columnar crystals during cooling, it is preferable that a crystal growth inhibitor such as fatty acid, glycerin or propylene glycol be added to the solid aromatic substance. A crystal growth inhibitor can be used in an amount corresponding to 0.1-1.0% by weight of a solid aromatic substance such as menthol. The solid aromatic substance film 14 may contain a different aromatic substance other than a solid aromatic substance.

Film 24 solid aromatic substances is not particularly limited in its thickness. However, the film 24 of solid aromatic substances preferably form a solid aromatic substance in an amount corresponding to 1-20% by weight of the finished aromatic particles.

The glucan film 26 may be formed from an aqueous solution or an aqueous dispersion of glucan. Glucan film 26 is not particularly limited in its thickness. However, bearing in mind the retention of aroma of a solid aromatic substance at the non-smoking stages and the release of menthol during smoking, the glucan film 26 is preferably formed by glucan in an amount corresponding to 0.25-5% by weight of the finished aromatic particle.

The aromatic particle according to the second embodiment can be made, for example, in the following way. Namely, carrier particles and small crystals of crystals of a solid aromatic substance and, if necessary, a crystal growth inhibitor and other aromatic substance were mixed and heated in a belt mixer. During the initial stages of mixing, small particles of crystals of the solid aromatic substance adhere to the surfaces of the particles of the carrier, and small particles of crystals of the solid aromatic substance begin to melt when the heating temperature reaches the melting point of the solid aromatic substance (for example, about 42 ° C. for menthol). Stirring and mixing were further continued, thereby uniformly applying a molten solid aromatic substance to the surface of the carrier particles. After mixing by heating, the carrier particles were immediately cooled, for example, by cooling the body of the tub mixer or by blowing cold air into the band mixer. The molten solid aromatic substance crystallizes again upon cooling to coat the surface of the carrier particles in the form of a film. Particles of a carrier coated with a film of a solid aromatic substance were loaded into a granulation dryer of a fluidized bed, and an aqueous solution or aqueous dispersion of glucan was periodically sprayed onto the surface of the particles of the carrier, while at the same time blowing into a granulation dryer, for example, hot air at 80 ° C or lower, what followed cooling. Thus, a glucan film was formed on the surface of the film of a solid aromatic substance formed on the surface of the carrier particles.

Alternatively, the aromatic particle according to the second embodiment can also be made by forming a solid aromatic substance film on the surfaces of the carrier particles, as described above, and by spraying an aqueous solution or an aqueous dispersion of glucan onto carrier particles having a solid aromatic substance film in a belt mixer or roller granulator, thereby coating the solid aroma film with a glucan film.

In the aromatic particle according to the second embodiment, menthol is prevented from evaporating or sticking to the charcoal filter during storage under normal conditions, since the solid aromatic substance film on the surface of the carrier particle is coated with a glucan film which has low gas permeability. When a glucan film is in contact with hydrophilic components, such as water, contained in the main stream of smoke emitted during smoking of a cigarette, the glucan film is partially deformed and dissolved, whereby the aroma is released from the underlying film of a solid aromatic substance and can be perceived. The aromatic particle of the present invention does not require an external force to sense aroma, as was the case with microcapsules.

The cigarette filter according to the present invention contains aromatic particles according to the present invention.

A cigarette equipped with a filter of the present invention will be described below with reference to FIG. 3 and FIG. 4. 3 and 4, similar elements are denoted by the same numeric designations.

FIG. 3 is a schematic cross-sectional view of a cigarette (filter cigarette) 30 provided with a filter according to one embodiment of the present invention. The filter cigarette 30 includes a cigarette portion 32 consisting of a tobacco filler 321, such as crushed tobacco wrapped in cigarette paper 322. The cigarette portion 32 is similar to that included in a conventional cigarette.

The filter part 34 is attached to one end of the cigarette part 32. The filter part 34 consists of a charcoal filter section 341, the filter part 34 is mounted directly adjacent to one end of the cigarette section 32 and the other filter section 342 containing aromatic particles located at the output end of the charcoal section filter along the mainstream smoke.

The carbon filter section 341 is formed by wrapping, for example, cellulose acetate fibers 341a in which the carbon particles 341b are dispersed with filter wrapping paper 341c. The carbon filter section 341 is similar to that included in a conventional cigarette.

A section of the filter 342 containing aromatic particles is formed by wrapping, for example, cellulose acetate fibers 342a, in which the aromatic particles FB of the present invention are dispersed, with wrapping paper of the filter 342b.

The filter part 34, consisting of filter sections 321 and 322, is attached to the cigarette part 32 with sticking paper 36.

4 is a schematic cross-sectional view of a cigarette (filter cigarette) according to another embodiment of the present invention. In a filter cigarette 40, the filter portion 42 attached to the cigarette portion 32 with adhesive paper 36 consists of a carbon filter section 341 that is directly attached to one end of the cigarette portion 32 and a clean filter section 422 that is spaced apart from the carbon filter section 341. The filter portion 42 is completely wrapped with filter wrapping paper 46. The clean section of the filter 422 consists, for example, of tow from cellulose acetate fibers 422a. Aromatic particles (FB) of the present invention are placed in the cavity 44 between the carbon filter section 341 and the clean filter section 422.

The present invention will be further described below with reference to specific examples, but the present invention should not be limited to these examples.

Examples

Example 1

2 wt.% Coffee oil was added to a pre-prepared aqueous dispersion of pullulan containing 10 wt.% Pullulan. The mixture was vigorously mixed in an emulsifier (emulsifier rotation speed of 2500 rpm), thereby preparing a dispersion of aromatic substances. On the other hand, 100 g of calcium carbonate particles having an average particle size of 250 μm were loaded into a fluidized bed granulation dryer and the aroma dispersion immediately began to be sprayed onto the particles in the form of repeating cycles, each of which consisted of 1 minute of spraying and a break of 30 minutes while at the same time blowing hot air into the dryer at 75 ° C at a flow rate of 0.6 m / s, thereby spraying a total of 10 g of aromatic dispersion onto the surface of the calcium carbonate particles followed by drying. Thereafter, the interior of the fluidized bed was immediately cooled to room temperature, thereby obtaining the desired aromatic particles.

Example 2

100 g of calcium carbonate particles having an average particle size of 250 μm were loaded into a granulation fluidized bed dryer and continuously sprayed on the particles an aqueous solution of a mixture of aromatic substances containing 1 wt.% Tobacco flavoring and 9 wt.% Pullulan with vanilla added, while blowing at the same time, hot air was dried into the dryer at 30 ° C at a speed of 1.0 m / s, thereby spraying 5 g of an aqueous solution of the mixture onto the surface of calcium carbonate particles, followed by drying. After that, the temperature of the hot air was immediately reduced to room temperature and the particles were cooled at a flow rate of 0.4 m / sec, thereby obtaining the desired aromatic particles.

Example 3

1 wt.% Coffee oil and 0.5 wt.% Lecithin were added to a pre-prepared aqueous dispersion of pullulan containing 10 wt.% Pullulan. The mixture was vigorously mixed in an emulsifier (emulsifier rotation speed of 7500 rpm, 15 minutes), thereby preparing a dispersion of aromatic substances. On the other hand, 300 g of particles of ground coffee beans having an average particle size of from 250 μm to 1.4 mm were loaded into a rotary fluidized bed granulation dryer (SFC-MINI manufactured by Freund Corporation) and a perforated disk at the bottom and mixer blade to prevent The clumps were rotated at a speed of about 500 rpm and about 400 rpm, respectively, while at the same time blowing hot air into the dryer at 75 ° C at a flow rate of 0.6 m / s, thereby forming a fluidized bed of particles of ground coffee. A dispersion of aromatic substances, maintained at 40 ° C, was continuously sprayed onto a fluidized bed, thereby spraying on the surface of the particles of ground coffee a total of 90 g of a dispersion of aromatic substance, followed by drying. After that, the temperature of the hot air was immediately reduced to room temperature and the particles were cooled at a flow rate of 0.4 m / sec, thereby obtaining the desired aromatic particles.

Example 4

Filter cigarettes, as shown in FIG. 3, were made using aromatic particles obtained in Examples 1 to 3, respectively. In each case, the amount of aromatic particles added to the filter section 342 was a maximum of 100 mg per 10 mm of filter length. These cigarettes did not release flavor from the flavor during storage. However, the aroma could be felt stably when cigarettes were smoked.

Example 5

90 g of calcium carbonate particles having an average particle size of about 200 μm, 10 g of fine menthol powder, which was obtained by spraying crystalline menthol, and 0.5 g of glycerol were loaded into a belt mixer. The contents were heated to 40 ° C. with stirring and further heated for 5 minutes. Menthol completely melted and was able to adhere to the particles of calcium carbonate and cover them.

After that, cold air was blown into the belt mixer at 15 ° C to cool the particles. Thus, particles of calcium carbonate were obtained, the surface of each of which was covered with a film of menthol crystals. Particles of calcium carbonate having a menthol film were loaded into a fluidized bed granulator and immediately sprayed onto the particles intermittently with a 5 wt.% Aqueous solution of pullulan, while at the same time, hot air was blown into the granulator at 40 ° C with a flow velocity of 1.0 m / s by spraying through this on particles of calcium carbonate a total of 15 g of an aqueous solution of pullulan. After that, the particles were cooled to 25 ° C, thereby obtaining the desired menthol aromatic particles.

Example 6

The filter cigarettes shown in FIG. 3 were made using the menthol flavor particles of Example 5. The amount of menthol flavor particles added to the filter section 342 was 3 mg, based on menthol, per cigarette. These cigarettes did not emit menthol flavor under normal storage conditions. However, the menthol flavor could be felt steadily when cigarettes were smoked.

Claims (11)

1. A flavoring particle comprising a carrier particle, a glucan film deposited on a carrier particle, and an aroma substance, the aroma substance being held on the aroma particle so that the release of aroma from the aroma substance is suppressed by the glucan film, but the aroma is released by the glucan film, at least partially destroyed when the glucan film is in contact with the main stream of tobacco smoke. 2. The flavoring particle of claim 1, wherein the carrier particle is selected from the group consisting of a calcium carbonate particle, an activated carbon particle, a crystalline sugar particle, and a coffee bean particle. 3. The flavoring particle of claim 1, wherein the glucan film is formed from pullulan. 4. The flavoring particle according to claim 1, in which the aromatic substance is selected from lavender, cinnamon, cardamom, celery, cloves, cascarila, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, mint , caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, peppermint, fennel, pimento, ginger, anise, coriander and coffee essential oils. 5. The flavoring particle of claim 1, wherein the glucan film is formed by glucan in an amount corresponding to 0.25-5% of the total weight of the flavoring particle. 6. The flavoring particle according to claim 1, in which the glucan film contains an aromatic substance and directly covers the surface of the carrier particles. 7. The flavoring particle according to claim 6, in which the aromatic substance is present in an amount corresponding to 20% or less by weight of glucan. 8. The flavoring particle according to claim 1, in which the aromatic substance is a solid aromatic substance, which forms a film directly covering the surface of the carrier particles, and a glucan film covers the film of a solid aromatic substance. 9. The flavoring particle of claim 8, in which the solid aromatic substance includes menthol. 10. The flavoring particle of claim 8, in which the film of solid aromatic substances formed by a solid aromatic substance in an amount corresponding to 1-20 wt.% Of the total weight of the aromatic particles. 11. A cigarette filter containing a flavoring particle according to claim 1.

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