KR101738220B1 - Cigarette - Google Patents

Abstract

A filter portion having a plurality of filter sections, a locus for individually winding each of the filter sections, and a shaping paper integrally winding up the filter sections wound with the loci thereof; A cigarette portion wound with a wrapper material; A tip paper which covers the filter portion and the tobacco portion at the ends and covers the entire filter portion and the base portion of the cigarette portion to integrally connect them; Wherein at least one of the filter sections includes a dispersed black adsorbent material and the location where the filter section including the black adsorbent material is wound has an opacity of 78% or more, and the tip paper comprises a black adsorbent material Wherein a vent hole is previously formed in a portion of the cigarette where the filter section is not included.

Description

Cigarette {CIGARETTE}

The present invention relates to a cigarette which improves the opacity of the appearance of the filter part.

A filter cigarette (hereinafter, simply referred to as a cigarette) has a filter portion and a cigarette portion including a cigarette butt against each other at an end portion of the cigarette. The tip portion of the filter portion and the proximal end of the cigarette portion (Not shown) are integrally connected to each other. In recent years, such a cigarette has dispersed black adsorbent such as activated carbon in at least one filter section among a plurality of filter sections constituting the filter section from the demand for health risk or mild taste (taste). In such a cigarette, there is a problem that the black adsorbent of the filter portion can be visually seen.

As a conventional technique for increasing the apparent opacity of the filter portion, attention has been paid to a tip paper disposed on the outermost layer of the filter portion, and a technique of changing the type of the filling material, increasing the mixing ratio of the filling material, To increase the opacity of the tip paper to about 85% (see Japanese Patent Application Laid-Open Nos. 8-246396, 10-219599, and 11-36196).

However, the tip paper described in these documents causes an unfavorable state such as a marked decrease in the strength of the paper quality (soft paper) and a decrease in the bonding force between the paper layers (paper layers) (peelable paper). As a result, the tipping or tearing of the tip paper occurs in the printing process and the winding up process, which causes a large amount of paper dust. In addition, since the tip paper is easy to wet, when the consumer touches the mouth, the suction paper tends to be torn by the saliva. In addition, a relatively large amount of filling material is required to further increase the opacity, because the opacity of the tip paper having a somewhat higher opacity is less effective for increasing the opacity due to the increase of the filling material.

Further, in order to increase the opacity without multiplying the filling material, it is effective to make the tip paper thick. However, if it is intended to achieve high opacity with such a tip paper, it becomes too thick, so that the difference in circumference between the inner circumference and the outer circumference becomes larger when rolled up, and the circularity of the tobacco portion or the like is lowered And it is also likely to be skewed and wrinkled.

On the other hand, there is a tendency to use more black adsorbents such as activated carbon from the demand for mild smell and the like described above. Therefore, when it is intended to impart a white cleanliness of the filter portion, it is not necessarily sufficient to increase the opacity of the tip paper to 80 to 85% as in the above-mentioned document.

DISCLOSURE OF INVENTION

An object of the present invention is to provide a cigarette having a high quality which is improved in appearance opacity of the filter portion to 92% or more, the black adsorbent of the filter portion is hardly visible, and the white portion of the filter portion is clean.

According to the present invention, there is provided a filter comprising: a filter section having a plurality of filter sections, a locating paper for individually winding each filter section, and a forming paper (molding paper) for collectively winding up the filter sections wound with the loci;

A cigarette portion wound with a cigarette material by wrapping paper;

A tip paper which covers the filter portion and the tobacco portion at the ends and covers the entire filter portion and the base portion of the cigarette portion to integrally connect them;

And,

Wherein at least one of the filter sections includes a dispersed black adsorbent,

The location where the filter section including the black adsorbent material is wound has an opacity of

78% or more, and

The tip paper is provided with a cigarette in which a ventilation hole is previously formed in a portion located in a filter section that does not include a black adsorbent.

Fig. 1 is a view showing a relationship between a change in apparent opacity of a filter portion (a tip section is wound and a filter section in which activated carbon is dispersed), and a degree of visibility (visual sensory value) of activated carbon in the filter section.
2 is a view showing a cigarette having a dual type filter portion according to the embodiment.
3 is a view showing a cigarette having a filter portion of a triple type according to the embodiment.

Carrying out the invention  for Best  shape

Hereinafter, the cigarette according to the embodiment of the present invention will be described in detail.

The cigarette according to the embodiment includes a filter portion having a plurality of filter sections, a location for individually winding each filter section, a molding paper for integrally winding up a filter section around which the location of the filter section is wound, A cigarette portion is provided. The filter portion and the cigarette portion are butted together at their ends and are integrally connected by covering the entire filter portion and the base end portion of the cigarette portion with the tip paper. At least one of the filter sections includes a dispersed black adsorbent. The location where the filter section including the black adsorbent material is wound has an opacity of 78% or more. Further, the tip paper is previously provided with a ventilation hole at a portion located in the filter section not including the black adsorbent.

The inventors of the present invention have studied the relationship between the change in the apparent opacity of the filter portion (the region where the tip paper is wound and the filter section in which the activated carbon is dispersed) and the degree of visibility of the activated carbon in the filter section 1 was obtained. 1 (a) is a characteristic line when a filter section containing 25 mg of activated carbon per 10 mm is used, and b is a characteristic line when a filter section containing 50 mg of activated carbon per 10 mm is used, and c is 75 mg And characteristic lines when the added filter section is used. The arrows in Fig. 1 also indicate the opacity of the tip paper.

From the results shown in Fig. 1, it can be seen that the shade of the activated carbon is readily visible at the opacity (about 78 to 85%) of the general-purpose paper, and the shade becomes darker as the added amount of activated carbon increases. In addition, it can be seen that a very high level of opacity of 92% or more is required for the tip paper in order to make it harder to be seen as compared with the " slightly visible " As described above, it is very difficult to fabricate a tip paper having such opacity as described above.

Further, it has been found that in order to realize "slightly visible", in other words "almost invisible" in the filter portion, the appearance of the filter portion of at least 92%, preferably 94%, is required. Therefore, the apparent opacity of the filter part which can not be discriminated at all was 98% or more.

The inventors have found out that improvement of the opacity of the filter portion is limited by improvement of opacity of the tip paper based on the result of the above-described Fig. 1, (Collectively referred to as both sides of the molded paper), particularly, the location where the filter section is wound individually, and using a paper having a higher opacity (78% or more) than the conventional one as a location for winding the filter section including the black absorbent, A conventional cigarette having a filter appearance of 92% or more in appearance opacity and having a clean and clean feeling was found while ensuring filter ventilation.

That is, the main function required for the filter winding paper is a molding function as a filter, a predetermined air permeability, and usually does not appear to be covered with a tip paper, so that high opacity has never been required. It is difficult for a person skilled in the art to imagine that demanding high opacity at the discretion of the inventor can be considered for the first time at the same time as the present inventors.

The latter air permeability, which is required as the winding area, is to ensure the filter ventilation. Generally, the winding paper including the tip paper is correlated with the high opacity and the air permeability, and the higher the opacity, the lower the air permeability. That is, the windings having a high opacity are lower in air permeability than conventional products, and it is difficult to ensure ventilation.

As a result, according to the embodiment, only the location where the opacity is high (78% or more) than the conventional one is wound around the filter section including the black adsorbent material, the location where the filter section not including the black adsorbent material is wound, It is preferable to use a paper having a good air permeability as the paper and further to set the opening position of the ventilation hole of the tip paper covering the filter portion and the tobacco portion within the range of the filter section not including the black absorbent, A cigarette having a filter portion having an apparent opacity of 92% or more can be obtained.

Further, according to the embodiment, it is not necessary to add a large amount of filling material to the tip paper or to increase the thickness of the paper because it is possible to use a general purpose tip paper. Therefore, the tip paper has appropriate hardness and thickness, ) Is good, and a good cigarette in which stripe-like wrinkles are hard to be seen can be obtained.

The plurality of filter sections used in the embodiment are, for example, in the form of two (dual type) or three (triple type).

The filter section can be formed, for example, from a tow of cellulose acetate fibers. The bundles of cellulose acetate fibers can be bound by treating with triacetin.

The black adsorbent dispersed in the filter section may be, for example, activated carbon. It is preferable that the black adsorbent is dispersed in the filter section at 25 mg or more, more preferably at least 50 mg per 10 mm in length.

The location where the filter section including the black adsorbent material is wound has an opacity of 78% or more. It is preferable that such a site has, for example, pulp and a composition of a filling material such as calcium carbonate or titanium oxide. A more preferable opacity of the place is 85% or more. In addition, if the opacity of the site is made too high, it becomes difficult to make papermaking at the site, so the upper limit of opacity is preferably 95%.

It is preferable that the location where the filter section including the black adsorbent material is wound has a thickness of 30 to 100 mu m.

The opacity can be determined by a measuring method of the embodiment described later.

As the location where the filter section not including the black adsorbent material is wound, a conventional one having an opacity of, for example, 20 to 40% can be used. It is preferable that the location has a thickness of 30 to 100 mu m.

A molded article which winds the filter sections integrally wound with the locus of the wound body, for example, a conventional article having an opacity of 20 to 40% can be used. The formed sheet preferably has a thickness of 30 to 100 탆.

As the tip paper, a conventional one having an opacity of 78 to 85%, for example, can be used. The tip paper preferably has a thickness of 30 to 100 mu m.

Next, a cigarette according to the embodiment will be described in detail with reference to the drawings.

2 (a) is a front perspective view, Fig. 2 (b) is a sectional view taken along line bb in the same drawing (a), and Fig. 2 (c) is a cross-sectional view along the line cc in the same drawing (a).

A cigarette having a dual-type filter part has a cigarette part (1) and a filter part (2).

The cigarette portion 1 is formed by winding the cigarette pack 11 in a columnar shape with the wrapper 12.

As shown in Figs. 2 (b) and 2 (c), the filter unit 2 includes a first filter section 21a disposed on the side of the cigarette portion 1 and a second filter section 21b adjacent to the first filter section 21a And a second filter section 21b.

As shown in Fig. 2 (b), the first filter section 21a is formed by binding or folding a nonwoven fabric of acetate fibers or pulp in which a black adsorbent, for example, activated carbon 22 is dispersed, And is wound into a columnar shape by the first location 23a. The first location 23a has an opacity of 78% or more as described above, and has a thickness of, for example, 30 to 100 m.

As shown in Fig. 2 (c), the second filter section 21b is formed by binding or folding the nonwoven fabric of acetate fiber or pulp, and is wound into a cylindrical shape by the second location paper 23b. That is, the second filter section 21b did not contain a black adsorbent. The second location 23a is conventionally used, has an opacity of, for example, 20 to 40%, and has a thickness of 30 to 100 m.

The two filter sections 21a and 21b wound with the locating portions 23a and 23b are integrally formed by winding the end portions of the filter sections against each other with the shaping paper 24 therebetween. The shaped paper 24 has been used conventionally and has, for example, an opacity of 20 to 40% and a thickness of 30 to 100 탆.

The cigarette portion 1 and the filter portion 2 are integrated by covering the entire outer peripheral surface of the filter portion 2 and the outer peripheral surface portion of the tobacco portion 1 in the vicinity of the opposite sides with the tip paper 3 . The tip paper 3 does not include the black absorbent and the ventilation hole 31 is previously formed in the circumference of the portion corresponding to the second filter section 21b located on the inlet side . The tip paper 3 has been used conventionally and has, for example, an opacity of 78 to 85% and a thickness of 30 to 100 m.

3 (a) is a front perspective view, Fig. 3 (b) is a sectional view taken along the line bb in the same drawing (a), and Fig. 3 (c) is a cross-sectional view along the line cc in the same drawing (a), and FIG. 3 (d) is a sectional view along the dd line in the same drawing (a). In Fig. 3, the same members as those in Fig. 2 are denoted by the same reference numerals, and a description thereof will be omitted.

The cigarettes having a triple type filter section are arranged in the order of the first filter section 201a, the second filter section 201b, the third filter section 201b, And a filter section 2 having a filter section 201c. The first to third filter sections 201a to 201c are arranged in this order from the tobacco section 1 side.

As shown in Figs. 3 (b) and 3 (d), the first and third filter sections 201a and 201c are formed by binding or folding the nonwoven fabric of acetate fibers or pulp, respectively, 3 are wound in a columnar shape by the locating portions 203a, 203c. That is, the first and third filter sections 201a and 201c do not include the black adsorbent. The first and third local sites 203a and 203c are conventionally used and have an opacity of, for example, 20 to 40% and a thickness of 30 to 100 m.

The second filter section 201b disposed between the first and third filter sections 201a and 201c is a filter section 201b in which a black adsorbent such as activated carbon 202 is dispersed , An acetate fiber or a nonwoven fabric of pulp is bound or folded, and is wound into a columnar shape by the second location 203b. The second location 203b has an opacity of 78% or more as described above, and has a thickness of, for example, 30 to 100 m.

The three filter sections 201a to 201c wound by the first to third locating parts 203a to 203c are integrally formed by wrapping the end portions of the filter sections 201a to 201c with the shaping paper 204. The shaped paper 204 has been used conventionally and has, for example, an opacity of 20 to 40% and a thickness of 30 to 100 탆.

The tip paper 3 for covering and integrating the tobacco section 1 and the filter section 2 does not contain a black adsorbent and is provided with a first filter section 201c corresponding to the third filter section 201c located on the inlet section side And a ventilation hole 31 is formed in advance on the circumference of the portion. The tip paper 3 has been used conventionally and has, for example, an opacity of 78 to 85% and a thickness of 30 to 100 m. The ventilation hole may be formed in advance around the circumference of the portion of the tip paper 3 corresponding to the first filter section 201a located on the cigarette portion 1 side. The ventilation holes may be formed in advance around the circumference of two portions (two portions) of the tip paper 3 corresponding to both of the first and third filter sections 201a and 201c.

Hereinafter, embodiments of the present invention will be described in detail.

(Comparative Examples 1 and 2)

A coconut shell activated carbon having a center particle size of about 50 meshes was dispersed in acetate fibers of about 3 deniers and rolled up to a circumferential circumference of 24.5 mm in a first location to form a first filter section charcoal filter section). The amount of dispersion of the activated carbon was 50 mg per 10 mm length of the filter section.

Further, a second filter section having a second location was fabricated by winding acetate fibers of about 3 denier around the circumference 24.5 mm with a second location without dispersing the coconut shell activated carbon.

The first and second filter sections wound with the above-mentioned loci were wound together with the shaping paper so as to face each other at their ends, thereby manufacturing a dual-type filter section shown in Fig. 2 described above.

The cigarette shown in Fig. 2 was produced by integrating the obtained filter portion and the cigarette portion wound in the form of a cylinder with a wrapping paper at the end, covering the entire outer peripheral surface of the filter portion and the outer peripheral portion of the tobacco portion in the vicinity of the filter portion with a tip paper. In addition, a ventilation hole was previously formed on the circumference of the portion of the tip paper corresponding to the second filter section which does not include the black adsorbent and is located on the inlet side.

The cigarettes thus obtained are 55 mm in total length, 30 mm in length of the cigarette portion, 25 mm in length of the filter portion (first filter section (charcoal filter section): 10 mm, second filter section: 15 mm).

In the cigarettes of Comparative Examples 1 and 2, papers having a basis weight, a thickness, a composition and an opacity shown in Table 1 were used as the first and second loci, formed paper and tip paper, respectively.

In addition, the paper quality was measured by the following method.

As the paper samples, those that were harmonized for 24 hours or more under a 22 ° C / 50% humidity environment were used and provided with the following physical properties.

불투명도는, JIS P 8148-1993에 근거하여, 무라카미 시키사이 기쥬츠 켄큐우죠 제의 「ISO 백색-불투명도 측정기 WMS-1」을 사용하여 측정했다.

The opacity was measured using an "ISO white-opacity meter WMS-1" manufactured by Murakami Shikisai Kogyo Kenshu Co., based on JIS P 8148-1993.

두께는, JISP8118에 근거하여, 도요 세이키 세이사쿠쇼 제 「디지식크네스테스터(Digi Thickness Tester)」를 사용하여 측정했다.

The thickness was measured using a "Digi Thickness Tester" manufactured by Toyo Seiki Seisakusho Co., Ltd. based on JISP8118.

In addition, decimals are summarized by rounding off.

(Examples 1 and 2)

A cigarette having the same structure as that of Comparative Examples 1 and 2 was produced except that the paper having the basis weight, the thickness, the composition and the opacity shown in Table 2 were used as the first and second locating papers, the formed paper and the tip paper. The thickness and opacity of each paper were measured in the same manner as in Comparative Examples 1 and 2. [

(Examples 3 and 4)

A cigarette having the same structure as that of Comparative Examples 1 and 2 was prepared except that paper having the basis weight, thickness, composition, and opacity shown in Table 3 were used as the first and second loci, the formed paper and the tip paper. The thickness and opacity of each paper were measured in the same manner as in Comparative Examples 1 and 2. [

With respect to the cigarettes obtained in Comparative Examples 1 and 2 and Examples 1 to 4, the opacity when the first locating paper, the forming paper and the tip paper were overlapped, and the opacity when the second locating paper, the forming paper and the tip paper were overlapped The opacity was measured by the method described in Comparative Examples 1 and 2.

With respect to the cigarettes of the obtained Comparative Examples 1 and 2 and Examples 1 to 4, the extent to which the activated carbon in the portion where the charcoal filter section was located was visually evaluated by the following sensory test.

That is, the cigarettes were visually inspected by 16 normal panelists, and each cigarette was visually evaluated under the illumination of approximately 600 lux in the room illuminated with general fluorescent lamps and the like. The evaluation was made by comparing the appearance of the filter portion and evaluating the degree of visible gray to black in the charcoal filter section from the activated carbon in five steps. Further, in the visual sensory test by 16 panelists, the visual sensation values different from those of the other panelists were canceled.

<Visual sensory value>

1: Activated carbon is not visible.

2: Activated charcoal appears to be transparent.

3: Activated carbon appears to be slightly transparent.

4: Activated carbon seems to be clearly visible.

5: Activated carbon seems to be quite transparent.

The transparency and visual sensory values are shown in Table 4 below.

As is clear from Table 4, in Comparative Example 1 using the lower limit opacity (78%) as the tip paper and Comparative Example 2 using the high opacity (85%) as the tip paper, the filter portion Section), the apparent opacity due to the overlapping of the first location, the formed paper and the tip paper is less than 92%, which is expected, and the visual sensory value is also favorable in terms of appearance quality .

In Comparative Examples 1 and 2, since the second filter section not containing activated carbon was wound with the second locating portion and the formed paper having the air permeability of 10000 CU, the tip of the vent hole corresponding to the second filter section By winding the paper, a sufficient ventilation effect can be achieved at the position of the vent hole.

On the contrary, in Examples 1 to 3, in which opacity of 78 to 85% was used as the first location (winding the first filter section in which the activated carbon was dispersed) and opacity (78%) of the lower limit was used as the tip paper, The apparent opacity due to the overlapping of the first location, the formed paper and the tip paper in the filter portion (the first filter section in which the activated carbon is dispersed) exceeds 92%, which is expected, and the visual sensitivity value is also " Quot; slightly visable &quot; state, the appearance quality is good, and the white cleanliness can be imparted.

Further, in Example 4 using opacity of 85% as the first location (winding the first filter section in which the activated carbon is dispersed) and high opacity (85%) as the tip paper, the filter portion It can be seen that the apparent opacity due to the overlapping of the first location, the formed paper, and the tip paper in the first filter section) exceeds the expected 94% and the whiteness of cleanliness can be imparted.

Further, in the first to fourth embodiments, the second filter section not including activated carbon is wound with the second locating portion and the formed paper having the air permeability of 10000 CU. Therefore, the tip of the ventilation hole corresponding to the second filter section By winding the paper, a sufficient ventilation effect can be achieved at the position of the vent hole.

Claims (5)

A filter portion having a plurality of filter sections, a locating paper for individually winding each of the filter sections, and a forming paper (molding paper) for collectively winding up the filter sections wound with the loci thereof;
A cigarette portion wound with a cigarette material by wrapping paper;
A tip paper which covers the filter portion and the tobacco portion at the ends and covers the entire filter portion and the base portion of the cigarette portion to connect them integrally;
And,
Wherein at least one of the filter sections includes a dispersed black adsorbent,
The location where the filter section including the black adsorbent material is wound has an opacity of
78% to 85%
The formed sheet had an opacity of 40%
Wherein the tip paper has an opacity of 78% to 85%, and a ventilation hole is previously formed in a portion of the tip section that does not include the black adsorbent and is located in the filter section. The method according to claim 1,
The black adsorbent is activated carbon. The method according to claim 1,
Wherein the black adsorbent is dispersed in the filter section by 25 mg or more per 10 mm in length. The method according to claim 1,
Wherein the black adsorbent is dispersed in the filter section by 50 mg or more per 10 mm in length. The method according to claim 1,
The tip paper has a thickness of 30 to 100 mu m.

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