RU2544158C1 - Cigarette - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: cigarette contains a tobacco core (that contains a tobacco filler and cigarette paper wrapped round the tobacco filler), a filter containing multiple filtering plugs spaced from each other, paper for wrapping a filtering plug (wrapped round the filtering plugs and forming a cavity between the filtering plugs) and a flavouring capsule (confined inside the cavity and containing flavouring liquid contents) and tipping paper wrapped round the tobacco core and the filter and connecting the tobacco core and the filter; the paper for wrapping the filtering plug is impermeable with regard to the liquid contents; opaqueness of the multilayered paper consisting of the paper for wrapping the filtering plug and the tipping paper (i) is 70% or less before destruction of the flavouring capsule and (ii) decreases by at least 5% when the liquid contents are released after destruction of the flavouring capsule and adhere to the paper for wrapping the filtering plug.

EFFECT: ensuring determination of the capsule liquid contents propagation.

8 cl, 4 dwg, 6 tbl

Description

FIELD OF TECHNOLOGY

The present invention relates to a cigarette containing a cigarette filter containing a flavoring capsule.

BACKGROUND

The flavor capsule is traditionally inserted into a cigarette filter, and the flavor capsule is destroyed by releasing liquid contents, flavoring smoke when smoking or masking the smell of a cigarette butt after smoking (patent documents 1 and 2). A detailed description of a flavor capsule is provided, for example, in Patent Document 3.

Tracing paper or wrapping paper for the filter plug performs the function of masking the connection between the filter and the tobacco rod or masking the color of the resin adhering to the filter material when smoking. Accordingly, matte (opaque) paper is usually used. In the case of a charcoal filter, opaque banding paper or wrapping paper for the filter plug also has the function of masking the color of activated carbon in addition to the above function.

On the other hand, transparent rim paper and transparent paper for wrapping the filter plug are used to make the inside of the filter visible (Patent Documents 4-6).

Patent Document 4 describes how transparent materials are used as paper to wrap a filter plug and a rim paper to make the inside of the filter visible, and how a matte coating is applied to a part of the rim paper to provide a masking function in this part. Patent Document 4 presents as examples transparent materials such as polypropylene, polyvinyl chloride, cellulose acetate film, polyethylene terephthalate, polyethylene oxide, polyethylene, cellophane, Natureflex (registered trademark) and polyacetic acid. In addition, Patent Document 4 describes how the rim paper and the wrapping paper of the filter plug can be colored to make them translucent for the purpose of imparting an aesthetic appeal to the filter due to the possible visibility of the inside of the filter.

Patent Document 5 describes how transparent film materials are used as wrapping paper or wrapping paper for filter plugs to make fragrance particles visible in the filter, and illustrates transparent film materials such as polypropylene, polyvinyl chloride and cellulose acetate film as examples.

Patent Document 6 describes how transparent materials are used as wrapping paper or wrapping paper for filter plugs to make the effects of removing harmful substances visible.

BACKGROUND OF THE INVENTION

Patent documents

Patent Document 1: (KOKAI) JP 7-250665.

Patent Document 2: Application PCT / JP2007 / 520204.

Patent Document 3: Application PCT / JP2008 / 546400.

Patent Document 4: WO 2009/106374.

Patent Document 5: Utility Model JP 5-45198.

Patent Document 6: WO 2004/068975.

SUMMARY OF THE INVENTION

The tasks solved by the invention

The inventors of the present invention have focused on the problems that when a cigarette containing a flavoring capsule in a part of the filter is wrapped with matte paper to wrap the filter plug or matte rim paper, it becomes difficult for a smoker to determine the position of the flavoring capsule when the capsule is broken, and it becomes impossible for a smoker to observe how the liquid contents of the capsule spread in the filter after the capsule breaks.

When transparent rim paper and transparent paper are used to wrap the filter plug in order to make the flavor capsule visible in the filter, the aforementioned masking function is provided (i.e., the function of masking the connection between the filter and the tobacco rod or masking the color of the resin adhering to the filter material). In addition, in the case where the transparent rim paper and the transparent paper for wrapping the filter plug are used to make the flavoring capsule visible, the amount of liquid contents of the capsule is extremely small, and thus it is difficult to visually observe that it is sufficiently spreads in the cavity, although it remains possible to observe the destruction of the capsule.

Thus, it is an object of the present invention to provide a cigarette comprising rim paper and paper for wrapping a filter plug in which

(a) the wrapping paper and the wrapping paper of the filter plug retain the aforementioned masking function,

(b) the position of the flavor capsule can be visually observed by the smoker through the rim paper and the wrapping paper of the filter plug when the flavor capsule is broken in the filter, and

(c) the smoker can visually observe through the rim paper and the wrapping paper of the filter plug as the liquid contents of the capsule are distributed in the filter after the capsule is broken.

Means of solving problems

A cigarette containing a flavoring capsule must not stain the liquid contents of the capsule released upon breaking the capsule on wrapping paper or filter paper. Accordingly, for example, in the case where a lipophilic solvent is used as the liquid contents of the capsule, oil-impervious paper is preferably used as the paper for wrapping the filter plug. On the other hand, the inventors of the present invention added the liquid contents of the capsule to a translucent paper for wrapping a filter plug to intentionally leave a highly transparent stain on the paper for wrapping a filter plug, and carried out the present invention.

In particular, the invention provides a cigarette comprising:

a tobacco rod comprising tobacco filler and cigarette paper wrapped around the tobacco filler,

a filter comprising a plurality of filter plugs spaced apart from each other, wrapping paper for the filter plug wrapped around the filter plugs and forming a cavity between the filter plugs, and a flavor capsule contained in the cavity and enclosing flavoring liquid contents in the shell, and

rim paper wrapped around the tobacco rod and filter and connecting the tobacco rod and filter,

in which the paper for wrapping the filter plug is impervious to liquid contents, and

the haze of the multilayer paper consisting of paper for wrapping the filter plug and the rim paper, (i) is 70% or less until the fragrance capsule breaks and (ii) decreases by 5% or more when the liquid content released upon breaking the fragrance capsule adheres to paper for wrapping filter plugs.

The technical results of the invention

In a cigarette according to the invention:

(a) the wrapping paper and the wrapping paper of the filter plug retains the camouflage function,

(b) the position of the flavor capsule can be visually observed by the smoker through the rim paper and the wrapping paper of the filter plug when the flavor capsule is broken in the filter, and

(c) a stain of the liquid contents of the capsule is formed on the paper to wrap the filter plug after the capsule is broken, and thus, the smoker can visually observe how the liquid contents of the capsule is distributed in the filter.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A is a cross-sectional view illustrating a portion of a cigarette of the invention before the fragrance capsule breaks.

FIG. 1B is a cross-sectional view illustrating a portion of a cigarette of the invention after breaking a flavor capsule.

FIG. 2 is an explanatory view illustrating a filter according to an example of the present invention.

FIG. 3 is an explanatory view illustrating a cigarette according to an example of the present invention.

An embodiment of the invention

The present invention will now be described with reference to the drawings. However, the purpose of the following description is to present the present invention in detail, and it is not intended to limit the present invention.

FIG. 1A and 1B are cross-sectional images illustrating a portion of the cigarettes of the invention. FIG. 1A represents a cigarette until the fragrance capsule 23 is destroyed; and FIG. 1B represents a cigarette after breaking fragrance capsule 23.

The cigarettes shown in FIG. 1A and 1B include a tobacco rod 10 and a filter 20, where the flavor capsule 23 is contained in a cavity defined by two filter plugs 21a and 21b and a paper 22 for wrapping the filter plug. The tobacco rod 10 and the filter 20 are connected by a rim paper 30. The cigarettes shown in FIG. 1A and 1B are generally cylindrical in shape, similar to a regular filter cigarette.

The tobacco rod 10 consists of tobacco filler 11 and cigarette paper 12 wrapped around the tobacco filler, like a regular cigarette, and has, for example, a diameter of 5 to 10 mm and a length of 40 to 80 mm.

The filter 20 includes filter plugs 21a and 21b spaced from each other and separated by a cavity, wrapping paper for filter plug 22 wrapped around the filter plugs 21a and 21b and forming a cavity between the filter plugs, and a flavor capsule 23 contained in the cavity between the filter plugs and enclosing a flavoring liquid content in a shell. The filter 20 has almost the same diameter as the tobacco rod 10, and may have, for example, a length of 15 to 40 mm similar to a conventional filter.

In the cigarettes shown in FIG. 1A and 1B, two filter plugs 21a and 21b are separated by a cavity. You can arrange N filter plugs (N is an integer greater than or equal to 2) that separate (N-1) cavities. For example, N is from 2 to 4, preferably 2 or 3, more preferably 2.

The filter plugs 21a and 21b can be manufactured using a fibrous filter material, such as cellulose acetate fiber, similar to a regular filter cigarette. Filter plugs can be made using only fibrous filter material, or they can be made using fibrous filter material and paper material wrapped around the fibrous filter material. The filter plug 21a on the chopped tobacco side and the filter plug 21b on the mouthpiece side may consist of the same material and have the same structure, or they may consist of different materials and have different structures.

The wrapping paper of the filter plug 22 is wrapped around two filter plugs 21. As a result, it forms a cavity in conjunction with the two filter plugs 21a and 21b. The paper for wrapping the filter plug 22 is translucent and has such a level of haze that you can visually observe the flavoring capsule 23 located in the cavity. That is, the wrapping paper of the filter plug 22 has such a level of haze that a smoker can visually observe the position of the flavor capsule when the flavor capsule breaks in the filter. Thus, the wrapping paper of the filter plug 22 performs a camouflage function, masking the internal structure of the filter. In addition, when the liquid contents of the capsule released upon breaking the flavor capsule adheres to the wrapping paper of the filter plug 22, the dullness of the paper for wrapping the filter plug 22 decreases and the visually observed level of the flavor capsule rises. That is, the transparency of the paper for wrapping the filter plug 22 increases at the place where the liquid contents of the capsule adhered. One can clearly observe the outline of the destroyed flavor capsule. The expression "increases visually observed level" means that you can clearly observe the contour of the destroyed flavor capsule. In particular, it means that the level of evaluation increases according to the evaluation criteria described below in table 1. As a result, the smoker can visually observe how the liquid contents of the capsule are distributed in the cavity.

Thus, according to the invention, the liquid contents of the capsule adheres to the translucent paper to wrap the filter plug so as to form a highly transparent stain on the paper to wrap the filter plug. The spread of the stain provides a visual observation of how the liquid contents of the capsule spreads into the cavity. As a result, the smoker can smell after visual observation that the liquid contents of the capsule are sufficiently distributed in the cavity.

To provide the above effects, the wrapping paper of the filter plug 22, in particular, satisfies the following three requirements of the invention.

(1) The paper for wrapping the filter plug is impermeable to the liquid contents of the capsule.

(2) A multilayer paper consisting of paper for wrapping a filter plug and a rim paper has a haze of 70% or less.

(3) When the liquid contents of the capsule released upon breaking of the flavor capsule adheres to the multilayer paper consisting of paper for wrapping the filter plug and the rim paper, the multilayer paper has a haze that is 5% or more below the level existing before the capsule ruptured.

According to the invention, the rim paper is preferably transparent. In the case where the rim paper is transparent, the haze, as a rule, is from 0.5 to 3%. For example, you can use NatureFlex 23μ (Innovia Films) or NatureFlex 42μ (Innovia Films) as the base film for the wrapping paper. Thus, in the case where the rim paper is transparent, the rim paper does not significantly affect the haze of the multilayer paper. Thus, in the case where the rim paper is transparent, requirement (2) is the expression “wrapping paper for the filter plug has a dullness of 70% or less”, and requirement (3) is the expression “when the liquid contents of the capsule, released when the fragrance capsule breaks down, it adheres to the paper for wrapping the filter plug, the paper for wrapping the filter plug has a haze that is 5% or more below the level existing before the capsule breaks. "

The term “haze” as used herein means a quantity measured in accordance with JIS P8138A (1976).

In particular, it can be determined whether the paper for wrapping the filter plug meets the requirement (1), as follows. I.e:

filter plug wrapping paper and test paper are laminated to produce laminated paper, and the haze of the laminated paper is measured from the side of the test paper;

the liquid contents of the capsule drips onto the laminated paper from the side of the paper to wrap the filter plug, and the haze of the laminated paper is measured from the side of the test paper;

haze after dripping the liquid contents of the capsule is subtracted from haze to dripping the liquid contents of the capsule, obtaining the difference of the values of haze; and

in the case where the difference is 10% or less, the paper for wrapping the filter plug is evaluated as having impermeability to the liquid contents of the capsule, and in the case where this difference is more than 10%, the paper for wrapping the filter plug is evaluated as not having impermeability to the liquid contents of the capsule (see example 2 below). Thus, the expression “having impermeability” as used herein extends not only to the case of complete impermeability, but also to the case of impermeability and very low permeability (see table 3 below). Here, haze is also measured in accordance with JIS P8138A (1976). The term “test paper” as used herein means matte paper having a filter paper function that is capable of absorbing liquid when liquid penetrates the paper to wrap the filter plug. For example, paper with a haze of 80 or more and a thickness of 33 to 53 microns can be used. Suitable examples include 37 white screen paper (Nippon Paper Papylia Co., Ltd.).

In particular, it can be determined whether the multilayer paper consisting of paper for wrapping the filter plug and the rim paper meets the requirement (2) as follows. That is, the paper for wrapping the filter plug and the rim paper is laminated to obtain multilayer paper, and the haze of the multilayer paper is measured on the side of the rim paper (see Example 3 below). Here, haze is also measured in accordance with JIS P 8138A (1976). According to the invention, the haze measured in this way (i.e. haze prior to adhesion of the liquid contents of the capsule) is 70% or less, preferably from 5 to 70%, more preferably from 10 to 40%, even more preferably from 15 to 40%. When the haze exceeds 70%, it is difficult to visually observe the flavor capsule through the wrapping paper of the filter plug and the rim paper.

In particular, it can be determined whether the multilayer paper consisting of paper for wrapping the filter plug and the rim paper meets the requirement (3) as follows. I.e:

the paper for wrapping the filter plug and the rim paper is laminated to obtain multilayer paper, and the haze of the multilayer paper is measured from the side of the rim paper;

the liquid contents of the capsule are dripped onto the multilayer paper from the paper side to wrap the filter plug, and the haze of the multilayer paper is measured from the side of the rim paper; and

The haze after dropping the liquid contents of the capsule is subtracted from the haze until the dropping of the liquid contents of the capsule, obtaining the difference of the haze values (see Example 3 below). Here haze is also measured in accordance with JIS P 8138A (1976). According to the invention, the difference in haze values calculated in this way is 5% or more, preferably from 5 to 30%, more preferably from 10 to 30%. In the case where the difference in the haze value is less than 5%, it is difficult to determine that the liquid contents of the capsule released when the capsule breaks up propagates in the filter cavity, because reducing the haze of the multilayer paper is not sufficient.

Regarding requirements (2) and (3), the haze of a multilayer paper made by laminating paper to wrap a filter plug and a rim paper can be measured before making a cigarette. Alternatively, after manufacturing a cigarette, a multilayer paper consisting of paper for wrapping a filter plug and a rim paper is cut out of a cigarette cavity, and multilayer paper can be measured. In the latter case, the multilayer paper contains glue, but the effect of the glue on the dullness can be neglected, because transparent glue (for example, emulsion-based glue) is usually used to attach paper to wrap the filter plug on the rim paper.

More specifically, paper with a haze of 5 to 40%, a smoothness of 500 to 2500 seconds, and an ash content of 0 to 5% can be used as a wrapping paper for filter plug 22. Preferably, paper with a haze of 20 to 40%, smoothness is from 500 to 2500 seconds and ash content is from 0 to 5%, can be used as paper for wrapping filter plug 22. More specifically, glassine and parchment paper that satisfy the above conditions can be used in the quality of the paper for wrapping the filter plug 22. Preferably, the glassine that meets the above conditions can be used as the paper for wrapping the filter plug 22. When haze exceeds 30%, this is not preferable from the point of view of visual observation of the flavor capsule. When the smoothness is less than 500 seconds, this is not preferred in terms of impermeability to the liquid contents of the capsule. When the ash content exceeds 5%, this is not preferable in terms of increasing haze. The thickness of the paper for wrapping the filter plug 22 may be, for example, from 40 to 80 microns.

The wrapping paper of the filter plug 22 can be processed in such a way that a region of a certain shape with water-repellent or oil-repellent properties is formed on the inner surface (i.e., on the surface from the side of the cavity) so that a silhouette of a certain shape is obtained when the liquid content released upon breaking the flavor capsule adheres to the paper to wrap the filter plug. An area having water-repellent properties can be obtained by applying a paraffin, organosilicon or similar coating. An area having oil-repellent properties can be obtained by applying a wax, paraffin, carboxymethyl cellulose, latex or similar coating. These substances can be applied to the paper to wrap the filter plug using printing technology. The given shape may be an arbitrary shape, including a symbol; a shape such as a circle, triangle, square or star; or a sign such as a letter of the alphabet.

In the cigarette of FIG. 1A and 1B, the flavor capsule 23 is contained in the cavity between the filter plugs. The cavity may contain a flavor capsule or a plurality of flavor capsules (e.g., 2 to 10 capsules).

The flavor capsule consists of a shell 23a and liquid contents 23b, including a flavor. As the shell 23a, for example, starch, dextrin, polysaccharides, agar, gellan gum, gelatin, a variety of natural gelling agents or glycerin can be used. In addition, the shell 23a may contain flavoring and coloring. The flavor capsule is preferably colored, which allows the smoker to observe the destruction of the flavor capsule, even if it is wrapped in paper to wrap a filter plug having a dullness (translucency). The shell 23a preferably contains a colorant such as blue colorant No. 1. As a flavoring agent included in the liquid contents 23b, for example, menthol, vegetable essential oils or the like can be used. As a solvent for the liquid contents 23b, a solvent suitable for flavoring may be used. For example, medium chain carbon fatty acid triglyceride (MCT) (in particular glyceryl tricaprylate / caprate), propylene glycol, water and ethanol may be used. The liquid content may include other additives, such as other solvents, colorants, emulsifiers and thickeners.

A method of manufacturing a flavor capsule is not limited to a specific way. If a drip method is used, a flavor capsule having a seamless shell can be made. According to this method, the liquid contents and the material of the liquid shell are simultaneously released from the inner nozzle and the outer nozzle, respectively, using a double nozzle, and as a result, the liquid content can be seamlessly encapsulated in the liquid shell. The diameter of the flavor capsule may be, for example, from 1.5 to 7.0 mm.

When a cigarette of the invention is made, the flavor that will be contained in the cigarette is first determined. According to the type of flavor, a solvent suitable for dissolving the flavor is selected. After that, you can choose paper for wrapping the filter plug, which meets the above requirements (1) - (3) with respect to the solvent. For example, in the case where menthol is contained in the cigarette, a medium-length carbon chain fatty acid triglyceride is selected as a solvent. Paper that meets the above requirements (1) to (3) with respect to this solvent can be selected: for example, super thick white glassine 40.0 (Nippon Paper Papylia Co., Ltd.), thin white glassine 25.8 (Nippon Paper Papylia Co. , Ltd.), Dreep W34.9 parchment paper (Oji Specialty Paper Co., Ltd.), or JT 40 translucent glassine (Nippon Paper Papylia Co., Ltd.) (see tables 4 and 6 below).

In the cigarette of FIG. 1A and 1B, the rim paper 30 is preferably impervious to liquid contents. In addition, the rim paper is preferably transparent. As such a rim paper, you can use transparent cellophane.

The rim paper 30 is attached with glue, covering the entire area of the wrapping paper 22 of the filter plug 22 and part of the cigarette paper 12. The glue is preferably transparent and colorless so as not to affect the visual observation level of the flavor capsule. For example, an emulsion based adhesive may be used. The rim paper 30 may have, for example, a length (width) of 20 to 50 mm in the longitudinal direction of the tobacco rod and a thickness of 10 to 100 μm. The rim paper has a series of small holes (ventilation holes) for air to enter, arranged in one row or several rows in the direction of the circumference of the cigarette or in an disordered configuration, as in the case of a conventional cigarette filter. The rim paper 30 can be coated, for example, white printing in areas other than the cavity.

Examples

Example 1. Visibility of the capsule

In this example, the possibility of visual observation of the flavor capsule before and after the destruction of the flavor capsule of the cigarette of the invention was evaluated.

1. Materials

As paper for wrapping the filter plug in the A-F filters, paper types having the following brand names were used. Manufacturers and paper types are shown in parentheses.

Filter A:

40.0 Super Thick White Glassine (Nippon Paper Papylia Co., Ltd .; ultra-thick white glassine)

Matte: from 30 to 35%, smoothness: from 800 to 1000 seconds, ash content: from 0 to 5%

Filter B:

25.8 Thin White Glassine (Nippon Paper Papylia Co., Ltd .: thin white glassine)

Matte: from 20 to 25%, smoothness: from 1000 to 1200 seconds, ash content: from 0 to 5%

Filter C:

50NFB (Nippon Paper Papylia Co., Ltd .; oilproof paper)

Matte: from 75 to 80%, smoothness: from 30 to 130 seconds, ash content: from 1 to 2%

Filter D:

Graphane 35 gsm (Oji Specialty Paper Co., Ltd .; glassine 35 g / cm ² )

Matte: from 5 to 15%, smoothness: from 1500 to 2000 seconds, ash content: from 0 to 5%

Filter E:

P-10000C (Nippon Paper Papylia Co., Ltd .; highly permeable non-woven fabric)

Matte: from 40 to 50%, smoothness: from 8 to 10 seconds, ash content: from 0 to 3%

Filter F:

NatureFlex 42μ (Innovia Films; Clear Cellophane)

Haze: 1.0 to 2.0%, smoothness: 3500 to 4000 seconds

Filter G:

JT Highly Transparent Glassine 40 (Nippon Paper Papylia Co., Ltd .; translucent glassine)

Haze: 15 to 25%, smoothness: 1500 seconds or more, ash: 0 to 5%

2. Filter manufacture

The filter shown in FIG. 2, were made using the above types of paper to wrap the filter plug. The filter consists of a filter plug 21a on the chopped tobacco side (left side), a filter plug 21b on the mouthpiece side (right side), wrapping paper for the filter plug 22, and a flavor capsule 23.

The “filter plug 21a on the shredded tobacco side” comprises filter material (non-wrap acetate material ATK2010-02) not including paper material. The length L1 of the plug is 11 mm, and its circumference is 24.1 mm. The “filter plug 21b on the side of the mouthpiece” comprises filter material (acetate fiber 2.8Y35000) and paper material (P10000C). The length L2 of the plug is 10 mm and its circumference is 24.1 mm. The cavity defined by the two filter plugs and the paper for wrapping the filter plug has a length (S) of 6 mm. The flavor capsule 23 is constituted by a liquid content 23b including a medium chain carbon fatty acid triglyceride (glyceryl tricaprilate / caprate) and flavor (menthol and vegetable essential oil), and a shell 23a containing mainly polysaccharide (starch). The flavor capsule has a diameter D of 4.5 mm. A flavor capsule was made by mixing starch (20% by weight) of the shell material and liquid contents (80% by weight) and subjecting the resulting mixture to a dripping process. The total length (Lf) of the fabricated filter is 27 mm.

As shown in FIG. 2, two filter plugs and a flavor capsule were wrapped with filter paper 22 for wrapping a filter plug using a FLR ND-5RC cigarette making machine (Sanjo Machine Works, Ltd.).

3. Cigarette making

The cigarette shown in FIG. 3 were manufactured using a filter manufactured as described above. The cigarette consists of “tobacco rod 10”, “filter 20” and “rim paper 30”.

As the tobacco rod used tobacco rod brand Mild Seven (Japan Tobacco Inc.). For this tobacco rod, the length (Lr) was 57 mm and the circumference was 24.8 mm. The filter has the form shown in FIG. 2, and its total length (Lf) is 27 mm. For the rim paper, a NatureFlex 23μ backing film (Innovia Films) was used, which had a white print 10 mm wide from each edge (TANNPAPIER GmbH) and was used for processing into rim paper. The length of the rim paper (Lt) was 32 mm, and the lengths of its white printing areas (Lt1 and Lt2) were 10 mm.

An adhesive based on an emulsion containing a copolymer of ethylene and vinyl acetate (EVA) was used for the backing paper. Cigarettes A and B were made using filters A and B, respectively, using a ProtosM5 cigarette making machine (Hauni Maschinenbau AG). In addition, C-G cigarettes were made by hand using C-G filters, respectively.

4. Evaluation of the results

Visibility (level of visual observation) of the flavor capsule, evaluated visually. The evaluation was carried out using a standard light source at a temperature of 23 ° C and a humidity of 50%.

(1) Two cigarettes of each type A-G were made.

(2) In one of the two cigarettes, the capsule was broken using needle-shaped nippers.

(3) After breaking the capsule, the cigarette was placed on the table and kept for 5 minutes.

(4) After aging, the cigarette was placed on commercially available carbon paper, and the visibility of the capsule was determined and visually evaluated.

The evaluation was carried out on the basis of the following table.

(5) Before breaking the capsule, the cigarette was evaluated in the same way. The difference between this rating level and the rating level obtained in paragraph (4) was calculated as “change in visibility”.

(6) Evaluation was carried out by five appraisers. Visual assessment results are presented below. The following table presents the results of the visual assessment along with the results of the haze measurement. As the results of measuring haze transferred the results obtained in the following example 3 (table 6).

In cigarette C, the capsule cannot be observed visually until it breaks. 50NFB oil impermeable paper is not suitable as wrapping paper for the filter plug. In cigarette F, the capsule can be clearly observed visually before and after its disruption. NatureFlex 42μ does not have a camouflage function and is therefore not suitable as a paper for wrapping a filter plug. In contrast, in cigarettes A, B, D, E, and G, the capsule can be visually observed until it breaks (grade levels 2 and 3). When the capsule was broken, the liquid contents of the capsule were attached to the paper to wrap the filter plug, and thus the capsule could be visually observed with greater clarity.

Example 2. Impermeability of paper for wrapping the filter plug with respect to liquids

In this example, the impermeability of various types of paper was evaluated to wrap the filter plug with respect to liquids.

1. Materials

The following paper types were used as paper to wrap the filter plug. In parentheses are brand names, manufacturers, and paper types, respectively.

(1) Plain paper with a density of 24.0 g / cm ² (Plain paper 24; Nippon Paper Papylia Co., Ltd .; plain paper)

Matte: from 65 to 75%, smoothness: from 80 to 140 seconds, ash content: from 8 to 12%

(2) N250 Ordinary Paper (N250; Nippon Paper Papylia Co., Ltd .; Plain Paper)

Matte: 40 to 50%, Smooth: 100 to 140 seconds, Ash: 5% or less

(3) NPWS (NPWS-OLL; Nippon Paper Papylia Co., Ltd .; plain paper)

Matte: 45 to 55%, Smooth: 150 to 190 seconds, Ash: 5% or less

(4) P10000C (P-10000C; Nippon Paper Papylia Co., Ltd .; highly permeable non-woven fabric)

Matte: from 40 to 50%, smoothness: from 8 to 10 seconds, ash content: from 0 to 3%

(5) P20000C (P-20000C; Nippon Paper Papylia Co., Ltd .; highly permeable non-woven fabric)

Matte: from 35 to 45%, smoothness: from 1 to 4 seconds, ash content: from 0 to 3%

(6) NatureFlex 23μ (NatureFlex 23μ; Innovia Films; clear cellophane)

Haze: 1.0 to 2.0%, smoothness: 3500 to 4000 seconds

(7) 50NFB (50NFB; Nippon Paper Papylia Co., Ltd .; oilproof paper)

Matte: from 75 to 80%, smoothness: from 30 to 130 seconds, ash content: from 1 to 2%

(8) Dreep W34.9 (Dreep W34.9; Oji Specialty Paper Co., Ltd .; parchment paper)

Haze: 30 to 50%, smoothness: 3000 seconds or more, ash: 0 to 5%

(9) Graphan with a density of 35 g / cm ² (Graphane 35; Oji Specialty Paper Co., Ltd .; glassine)

Matte: from 5 to 15%, smoothness: from 1500 to 2000 seconds, ash content: from 0 to 5%

(10) Thin White Glassine 25.8 (25.8 Thin White Glassine; Nippon Paper Papylia Co., Ltd .; glassine)

Matte: from 20 to 25%, smoothness: from 1000 to 1200 seconds, ash content: from 0 to 5%

(11) Super Thick White Glassine 40 (40.0 Super Thick White Glassine; Nippon Paper Papylia Co., Ltd .; glassine)

Matte: from 30 to 35%, smoothness: from 800 to 1000 seconds, ash content: from 0 to 5%

(12) Highly transparent glassine 40 (JT Highly Transparent Glassine 40; Nippon Paper Papylia Co., Ltd .; glassine)

Haze: 15 to 25%, smoothness: 1500 seconds or more, ash: 0 to 5%

2. Method of assessment

Medium carbon chain fatty acid triglyceride (MCT) (glyceryl tricaprilate / caprate), propylene glycol (PG) and water were used as added liquids.

The evaluation was carried out using a standard light source at a temperature of 23 ° C and a humidity of 50%.

(1) Before dripping liquid

The paper for wrapping the filter plug was laminated with rim paper (white screen paper 37 from Nippon Paper Papylia Co., Ltd.) (research paper). The haze (%) of multilayer paper made in this way was measured from the side of the rim paper by the Hunter method in accordance with JIS P 8138A.

(2) After dripping liquid

70 μl of liquid was dripped onto the side of the paper to wrap the filter plug in the multilayer paper. Two minutes after dripping the liquid, the liquid remaining on the surface of the paper to wrap the filter plug was removed. Thereafter, haze (%) was measured on the side of the rim paper by the Hunter method in accordance with JIS P 8138A.

The difference between the values of haze (%) after dripping a liquid and haze (%) before dripping a liquid was calculated as "change in the level of haze". Impermeability was evaluated based on the change in the level of haze, as described in the following table.

In the case where the liquid is water, the haze level cannot be measured because the liquid dries out over time, and thus the impermeability was evaluated instantly by its appearance in accordance with the evaluation criteria of table 3.

3. Evaluation of the results

Changes in haze levels and tightness ratings for various types of wrapping paper are shown below.

Since plain paper 24, N250, NPWS, P10000C, and P20000C have permeability to any type of liquid, these types of paper are not suitable as wrapping paper for the filter plug. NatureFlex 23μ, 50NFB, Dreep W34.9, graphane and highly transparent glassine 40 showed impermeability to any type of liquid. Pergamine 25.8 had low permeability with respect to medium-length carbon chain fatty acid triglyceride, but there was no problem using it as a paper for wrapping a filter plug. In the case of glassine 25.8, water could not be used as a solvent for the flavor capsule because it had permeability to water. Pergamine 40 was impervious to liquids other than water.

Example 3. Changing the haze of paper for wrapping the filter plug

1. Evaluation Method

In this example, the filter plug wrapping paper used in Example 2 was laminated with NatureFlex 23μ transparent taper paper. After that, the changes in haze due to fluid adhesion on multilayer paper were evaluated. The same liquid as used in Example 2 was dripped onto the laminated paper, and the evaluation was carried out in the same manner as in Example 2.

The difference between the values of haze (%) after dripping a liquid and haze (%) before dripping a liquid was calculated as "change in the level of haze". The change in haze level was evaluated along with the appearance (transparency), as described in the following table.

Table 5 Change haze level Appearance Rating less than -1% Folds occur due to absorption of oil or water

-fifteen% Changes are hard to see

5-10% Transparency increases slightly.

10-20% Transparency increases slightly.

more than 20% Changes are hard to see

As presented in table 5, when the change in the level of haze is 5% or more, you can visually observe an increase in transparency.

2. Evaluation of the results

Changes in haze levels and ratings for various types of paper for wrapping the filter plug are presented below.

The haze of plain paper 24, N250, NPWS, P10000C and P20000C changed significantly after dripping any type of liquid. However, these types of paper are permeable to any type of liquid, as the results of Example 2 represent, and thus, these types of paper are not suitable as wrapping paper for the filter plug.

Since NatureFlex 23μ does not exhibit a change in haze level of 5% or more, it is not suitable as a paper for wrapping a filter plug.

Since the 50NFB material is opaque, it is not possible to observe the position of the flavor capsule in the case where this paper is used. Thus, it is not suitable as a paper for wrapping a filter plug.

The Dreep W34.9 material had a haze of 37.2% before dripping and showed a change in haze level of 5% or more with respect to any type of liquid after dropping of each liquid. Thus, in the case of Dreep W34.9, it was possible to visually observe an increase in transparency. In addition, Dreep W34.9 was impervious to liquids of any type (see the result of Example 2 below). This shows that Dreep W34.9 can be used as paper for wrapping a filter plug.

Since graphane does not exhibit a change in haze level of 5% or more, it is not suitable as a paper for wrapping a filter plug.

Pergamine 25.8 had a haze of 20.9% before dripping and showed a haze level of 5% or more after dropping the medium chain carbon chain fatty acid triglyceride (MCT) and propylene glycol (PG). Thus, in the case of glassine 25.8, an increase in transparency could be visually observed. In addition, glassine 25.8 was impermeable to medium chain carbon chain (MCT) fatty acid triglyceride and propylene glycol (PG) (see the result of Example 2 below). This shows that glassine 25.8 can be used as paper to wrap the filter plug when using these liquids as a flavoring liquid.

Pergamine 40 had a haze of 31.2% before dripping, and showed a haze level of 5% or more after dropping a medium-length carbon chain fatty acid triglyceride (MCT), propylene glycol (PG), and water. Thus, in the case of glassine 40, an increase in transparency could be visually observed. In addition, glassine 40 was impermeable to medium-length carbon chain fatty acid triglyceride (MCT), propylene glycol (PG), and water (see the result of Example 2 below). This shows that glassine 40 can be used as paper to wrap the filter plug when using these liquids as a flavoring liquid content.

The translucent glassine 40 had a haze of 16.2% before dripping, and showed a haze level of 5% or more after dropping a medium-length carbon chain fatty acid triglyceride (MCT). Thus, in the case of highly transparent glassine 40, an increase in transparency could be visually observed. In addition, the highly transparent glassine 40 was impervious to any type of liquid (see the result of Example 2 below). This shows that highly transparent glassine 40 can be used as paper for wrapping a filter plug.

List of items

10: Tobacco Rod

11: Tobacco Filler

12: cigarette paper

20: Filter

21a: Filter plug (chopped tobacco side)

21b: Filter plug (mouthpiece side)

22: Paper for wrapping the filter plug

23: Flavoring Capsule

23a: Shell

23b: Liquid content

30: Border paper

Claims (8)

1. A cigarette containing:
a tobacco rod comprising tobacco filler and cigarette paper wrapped around the tobacco filler,
a filter comprising a plurality of filter plugs spaced apart from each other, wrapping paper for the filter plug wrapped around the filter plugs and forming a cavity between the filter plugs, and a flavor capsule contained in the cavity and enclosing flavoring liquid contents in the shell, and
rim paper wrapped around the tobacco rod and filter and connecting the tobacco rod and filter,
moreover, the paper for wrapping the filter plug is impervious to liquid contents, and
the haze of the multilayer paper consisting of paper for wrapping the filter plug and the rim paper, (i) is 70% or less until the fragrance capsule breaks and (ii) decreases by 5% or more when the liquid content released upon breaking the fragrance capsule adheres to paper for wrapping filter plugs. 2. The cigarette according to claim 1, in which the rim paper is transparent. 3. The cigarette according to claim 1, in which the paper for wrapping the filter plug has a haze difference of 10% or less between haze before dripping and haze after dripping, the haze difference being determined by the following procedure:
filter plug wrapping paper and test paper are laminated to produce laminated paper, and the haze of the laminated paper is measured from the side of the test paper;
liquid content is dripped onto the laminated paper from the side of the paper to wrap the filter plug, and the haze of the laminated paper is measured from the side of the test paper; and
the difference between the haze before dripping and the haze after dripping is calculated. 4. A cigarette according to any one of claims 1 to 3, in which the haze of a multilayer paper consisting of paper for wrapping a filter plug and a rim paper, (i) is 40% or less until the fragrance capsule is destroyed and (ii) is reduced by 10% or more, when the liquid contents released upon breaking the flavor capsule adheres to the paper to wrap the filter plug. 5. A cigarette according to any one of claims 1 to 3, in which the paper for wrapping the filter plug has a haze of 5 to 40%, smoothness of 500 to 2500 seconds and an ash content of 0 to 5%. 6. The cigarette according to claim 5, in which the paper for wrapping the filter plug is a glassine or parchment paper. 7. A cigarette according to any one of claims 1 to 3, in which the paper for wrapping the filter plug includes a region having water-repellent properties or oil-repellent properties on the inner surface. 8. The cigarette according to claim 6, in which the paper for wrapping the filter plug includes a region having water-repellent properties or oil-repellent properties on the inner surface.

Images