Technical Field
[0001] The present invention relates to a smoking article provided with a filter.
Background Art
[0002] A smoking article provided with a filter, for example, a filtered cigarette is formed
by making a cigarette rod abut on a filter, wrapping the outer circumferential surface
of the filter and the outer circumferential surface of the cigarette rod near the
butting portion with outer wrapper and integrating the cigarette and the filter.
[0003] In a smoking article provided with a filter, the filter wound with the outer wrapper
functions as a mouthpiece portion that the user holds in the mouth at smoking. The
user's impression of the smoking article provided with a filter depends on the physical
properties of the mouthpiece portion, which give the user various feelings at smoking.
[0004] Patent Literature 1 discloses a smoking article filter having hardness of a certain
or higher level at the mouth side end such that the user can enjoy chewing the mouth
side end of the smoking article filter during the smoking experience.
Citation List
Patent Literature
Summary of Invention
Technical Problem
[0006] However, Patent Literature 1 focuses on the action of the user who enjoys biting
the filter, and does not evaluate the feeling (holding comfort in user's mouth) when
the user holds the mouthpiece portion with the lips at smoking.
[0007] An object of the present invention is to provide a smoking article provided with
a filter having a good feeling (holding comfort in user's mouth) when the user holds
the mouthpiece portion with the lips at smoking.
Solution to Problem
[0008] Provided according to the present invention is a smoking article provided with a
filter comprising an aerosol generating member; a filter comprising a filter material
and one or more filter wrappers wound around an outer circumferential surface of the
filter material; and an outer wrapper wound around the outer circumferential surface
of an end part of the aerosol generating member and the filter, wherein the outer
circumferential surface of the outer wrapper has an arithmetic mean roughness of less
than 2.0 µm, and the filter wound with the outer wrapper has a compression recovery
of 60% or more after a compression load of 2.5 N is applied to a range of a length
of 10 mm in the diameter direction thereof.
Advantageous Effects of Invention
[0009] According to the present invention, a smoking article provided with a filter having
a good feeling (holding feeling in user's mouth) when the user holds the mouthpiece
portion with lips at smoking can be provided.
Brief Description of Drawings
[0010]
FIG. 1 is a schematic graph showing a compressive deformation amount - compression
restoring force curve for calculating compression recovery.
FIG. 2 is a schematic diagram illustrating the definition of hardness.
FIG. 3 is a schematic cross-sectional view showing a smoking article provided with
a filter according to a first embodiment.
FIG. 4 is a schematic cross-sectional view showing a smoking article provided with
a filter according to a third embodiment.
FIG. 5 is a schematic view showing a method of measuring the compression recovery.
Mode for Carrying Out the Invention
[0011] A smoking article provided with a filter according to the present invention will
be described hereinafter in detail.
[0012] The smoking article provided with a filter according to the present invention comprises
an aerosol generating member, a filter comprising a filter material and one or more
filter wrappers wound around the outer circumferential surface of the filter material,
and outer wrapper wound around outer circumferential surfaces of an end part of the
aerosol generating member and the filter. The outer circumferential surface of the
outer wrapper has an arithmetic mean roughness of less than 2.0 µm, and the filter
wound with the outer wrapper has a compression recovery of 60% or more after a compression
load of 2.5 N is applied to a range of a length of 10 mm in the diameter direction
thereof.
[0013] In the smoking article provided with a filter, the filter wound with the outer wrapper
is a mouthpiece portion which the user holds in the mouth at smoking. In addition,
the outer circumferential surface of the outer wrapper is the outer circumferential
surface of the mouthpiece portion which the user's lips touch at smoking. The present
inventors have found that the smoking article provided with a filter of the present
invention has a particularly good feeling (holding comfort in user's mouth) when the
user holds the mouthpiece portion by the lips at smoking.
[0014] In addition, the present inventors have found that, to further improve the holding
comfort in user's mouth of the smoking article provided with a filter, the arithmetic
mean roughness of the outer circumferential surface of the outer wrapper is favorably
1.5 µm or less and, more favorably, 1.0 µm or less.
[0015] The present inventors have further found that, to further improve the holding comfort
in user's mouth of the smoking article provided with a filter, the filter wound with
the outer wrapper has a compression recovery of 60% or more after a compression load
of 2.5 N is applied to a range of a length of 10 mm in the diameter direction thereof.
[0016] As the arithmetic mean roughness of the outer circumferential surface of the outer
wrapper is lower, a smoother feeling is given to the user's lips when the user holds
the mouthpiece portion with the lips at smoking. If the compression recovery of the
mouthpiece portion is appropriate, a favorable pressure is given to the user's lips
when the user holds the mouthpiece portion with the lips at smoking. If a compression
recovery is high, it is preferable since the shape of the mouthpiece portion can be
restored to the state before compression after the user holds and compresses the mouthpiece
portion with the lips at smoking. In contrast, if the compression recovery of the
mouthpiece portion is appropriate but the arithmetic mean roughness of the outer wrapper
is high, the holding comfort is not desirable since a coarse feeling is given to the
user's lips.
[0017] In addition, the present inventors have found that to further improve the holding
comfort in user's mouth of the smoking article provided with a filter, the recovery
angle after folded of the outer wrapper or one or more filter wrappers is favorably
60 degrees or more, more favorably 100 degrees or more, and further favorably 100
degrees or more and 120 degrees or less. If the recovery angle after folded of the
outer wrapper or one or more filter wrappers is large, the user's lips feel the hardness
and make the user feel a good holding comfort in user's mouth when the user holds
the mouthpiece portion with the lips at smoking. In general, when the recovery angle
after folded of the outer wrapper or one or more filter wrappers is large, the compression
recovery of the filter wound with the outer wrapper is improved.
[0018] Furthermore, the present inventors have found that to further improve the holding
comfort in user's mouth of the smoking article provided with a filter, the hardness
of the filter wound with the outer wrapper is favorably less than 90%, more favorably
80% or more and less than 90%, and further favorably 85% or more and less than 90%.
It has been found that the holding comfort in user's mouth of the smoking article
provided with a filter is preferable as the hardness of the mouthpiece portion is
not too large.
[0019] The definitions of the above terms "arithmetic mean roughness", "compression recovery",
"recovery angle after folded" and "hardness" will be described below.
<Arithmetic Mean Roughness>
[0020] The term "arithmetic mean roughness" as used herein refers to an arithmetic mean
roughness (Ra) measured using a surface roughness meter under measurement conditions
conforming to ISO1997.
<Compression Recovery>
[0021] The term "compression recovery" as used herein refers to recovery property for compression.
The compression recovery is calculated from a compressive deformation amount - compression
restoring force curve obtained when a test sample, which is a filter wound with an
outer wrapper, is compressed to a compression load of 2.5 N to a range of the length
of 10 mm in the diameter direction thereof, by using a cylindrical plunger having
a diameter of 10 mm, the compressing operation is stopped, and the shape of the test
sample is restored. The compressive deformation amount is the deformation amount [mm]
in the diameter of the test sample compressed by the compression load. The compressive
deformation amount - compression restoring force curve is measured by using, for example,
a rheometer. FIG. 1 is a schematic graph showing a compressive deformation amount
- compression restoring force curve obtained by compressing a test sample in a diameter
direction to a compression load of 2.5 N at a set speed (curve A-B), stopping the
compressing operation, and plotting the compression restoring force [N] (curve B-C)
for the compressive deformation amount [mm] when the shape is restored until the restoring
force from the test sample becomes 0 N.
[0022] In the compressive deformation amount - compression restoring force curve, the amount
of work (area of region ABD) at the time of compression (curve A-B) and the amount
of work (area of region CBD) at the time of restoration (curve B-C) are calculated.
The compression recovery [%] is calculated by the following equation.

[0023] The reason for setting the compression load to 2.5 N is that the average value of
the force of the user holding the mouthpiece portion with the lips at smoking is a
compression load of 2.5 N for a range of the length of 10 mm. The compression recovery
becomes higher as the compressive deformation amount of the test sample after stopping
the compressing operation (T
C mm) approaches the compressive deformation amount before compression (0 mm). In addition,
the compression recovery becomes higher as the compression restoring forces [N] for
the compressive deformation amounts [mm] at the pressurization (curve A-B), and at
the restoration after stopping the compressing operation (curve B-C) are close.
<Recovery angle after folded>
[0024] The term "recovery angle after folded" as used herein refers to the restoring force
to return to the original planar shape of the sheet. The recovery angle after folded
refers to the folding back angle of the sheet after folding back a certain sheet to
180 degrees at a constant pressure and leaving it to stand still for 30 seconds.
<Hardness>
[0025] The term "hardness" as used herein refers to resistance to compression. The hardness
is measured by applying a load of 2 kg to a filter wound with ten outer wrappers for
20 seconds and measuring the average diameter of the recess in the filter wound with
the outer wrapper. FIG. 2 shows a filter 101 wound with the outer wrapper before loaded,
and a filter 102 wound with the outer wrapper while loaded. The hardness is calculated
from the diameter Ds before the load F is applied and the diameter Dd of the recess
when the load F is applied, by the following equation.

[0026] This test can be performed using a device that is DD60A-type Densmeter manufactured
by Borgwaldt Corporation. This test is called DD60A test and is performed in the standard
test method for this device. This test is conducted at an ambient temperature of 22
± 2 degrees Celsius.
[0027] Several embodiments will be described with reference to the drawings. The same symbols
are given to the common elements throughout the embodiments, and the overlapping descriptions
will be omitted. In addition, each drawing is a schematic view for promoting understanding
of the embodiments, and the shape, size, ratio, etc. are often different from actual
values. As used herein, the terms "upstream" and "downstream" are used as appropriate,
based on the direction of flow of the aerosol when smoking a smoking article provided
with a filter.
(First Embodiment)
[0028] FIG. 3 is an enlarged schematic cross-sectional view showing a part of the smoking
article provided with a filter 1 according to the first embodiment. In the following
descriptions, filtered cigarette is described as an example of the smoking article
provided with a filter 1, but the smoking article provided with a filter is not limited
to this. The smoking article provided with a filter 1 may be the other smoking article
to which a filter is connected, for example, cigar, cigarillo, non-combustion type
smoking device utilizing electric heating/chemical reaction heat, a non-heating smoking
device, etc.
[0029] The smoking article provided with a filter 1 comprises an aerosol generating member
11, a filter 12, and an outer wrapper 13. The aerosol generating member 11 is, for
example, a cigarette rod 11. The cigarette rod 11 comprises shredded tobacco 111 and
cigarette paper 112 wound around the shredded tobacco 111, similarly to an ordinary
cigarette. The cigarette paper 112 is, for example, air permeable paper.
[0030] The filter 12 is disposed at the downstream end of the cigarette rod 11. The filter
12 has the same or substantially the same diameter as the cigarette rod 11. The filter
12 is composed of a filter material 121 and filter wrapper 122 wound around the filter
material 121. The filter 12 has a mono filter structure consisting of a single filter
material.
[0031] The outer wrapper 13 is wound around the downstream end portion of the cigarette
rod 11 and the outer circumferential surface of the filter 12 to connect the cigarette
rod 11 and the filter 12. The outer wrapper 13 is adhered to the cigarette rod 11
and the filter 12 by an ordinary adhesive used in the manufacture of general smoking
articles provided with a filter.
[0032] The compression recovery of the filter 12 wound with the outer wrapper 13 after applying
a compression load of 2.5 N, is 60% or more, favorably 60% or more and less than 80%,
and more favorably 60% or more and less than 70%. The compression recovery of the
filter 12 wound with the outer wrapper 13 is comprehensively determined by the material,
thickness and basis weight of the outer wrapper 13 and the filter wrapper 122, the
material of the filter material 121, and the like. It is preferable that the compression
recovery of the mouthpiece portion composed of the filter 12 wound with the outer
wrapper 13 be obtained from the physical properties of the outer wrapper 13.
(a) Outer wrapper (13)
[0033] The outer circumferential surface of the outer wrapper 13 has an arithmetic mean
roughness of less than 2.0 µm, preferably 1.5 µm or less, and further preferably 1.0
µm or less when wound around a filter. The recovery angle after folded of the outer
wrapper 13 is desirably 60 degrees or more, more desirably 100 degrees or more, and
still more desirably 100 degrees or more and 120 degrees or less.
[0034] The outer wrapper 13 is not particularly limited as long as it is configured to satisfy
the above-described arithmetic mean roughness, the compression recovery and, preferably,
the recovery angle after folded. The outer wrapper 13 is composed of, for example,
a sheet including a plurality of layers. The sheet including a plurality of layers
includes, for example, a base layer, and a surface layer provided on one side or both
sides of the base layer.
[0035] The base layer is not particularly limited, but is preferably formed of a material
having a high recovery angle after folded, for example, a resin film. The resin film
is preferably a thermoplastic resin film, for example, polyethylene resin, polyolefin
resin such as polypropylene, polyamide resin such as nylon-6, polyester resin such
as polyethylene terephthalate, polystyrene resin, and polycarbonate or polyphenyl
sulfide or a film containing a mixture thereof. In particular, the base layer is desirably
a film of a polyethylene resin, a polyolefin resin such as polypropylene, or a polyester
resin, and more desirably a film containing polyester or polyolefin as a main component.
It is preferable that the base layer is a biaxially-drawn film to increase the rigidity
and strength and to increase the recovery angle after folded. The base layer may contain
an inorganic filler such as calcium carbonate, calcined clay, alumina, or titanium
dioxide, or an organic filler. The base layer may have a single layer structure or
a multilayer structure.
[0036] The surface layer is not particularly limited as long as the outer circumferential
surface of the outer wrapper 13 has an arithmetic mean roughness of 2.0 µm or less
and, for example, a coating layer containing an inorganic filler, a paper-like layer
formed of resin or a coating layer containing cellulose nanofiber is mentioned as
the surface layer.
[0037] The coating layer containing an inorganic filler is, for example, a white pigment
coating layer similar to the surface layer of ordinary coated paper. The coating layer
containing an inorganic filler may contain, for example, an aqueous resin binder,
an inorganic filler, and an aqueous polymer, and may contain a colorant. Examples
of the inorganic filler include calcium carbonate, satin white, silica, titanium oxide,
alumina, zinc white, iron oxide, clay, aluminum sulfate, and the like, and in particular,
fillers such as calcium carbonate and pigments such as titanium oxide, zinc oxide,
and iron oxide are preferable as the inorganic filler. To lower the arithmetic mean
roughness of the surface layer, the particle size of the inorganic filler is preferably
15 µm or less. By providing the surface layer containing the inorganic filler, effects
such as improvement of printability, improvement of pencil writability, improvement
of whiteness, coloring, imparting of opacity and improvement of surface smoothness
can be obtained.
[0038] The paper-like layer formed of resin is, for example, a resin film having a large
number of microvoids by being stretched and oriented only in a uniaxial direction.
The paper-like layer formed of resin may contain the above-mentioned inorganic filler.
The paper-like layer formed of a resin can obtain effects such as improvement of printability,
improvement of pencil writability, improvement of whiteness, coloring, imparting of
opacity, and improvement of surface smoothness, by the large number of microvoids.
[0039] The coating layer containing cellulose nanofibers is, for example, a coating layer
containing cellulose nanofibers having an average of 50 nm or less and an average
fiber length of 10 µm or more. The coating layer containing the cellulose nanofibers
can be prepared by dispersing the cellulose nanofibers in a suitable solvent (for
example, water or alcohol) to prepare a slurry, coating the slurry on a base layer,
and drying the slurry.
[0040] It is preferable that if the outer wrapper 13 has a surface layer, a feeling like
plastics is eliminated when the user holds the mouthpiece portion with the lips at
smoking if the base layer is a resin film. In addition, since the outer wrapper 13
is generally printed with a logo mark, a pattern or the like to enhance a property
of design, the outer wrapper preferably has a surface layer having printability.
[0041] The outer wrapper 13 is preferably a synthetic paper having a base layer which is
a resin film, a coating layer containing an inorganic filler, or a surface layer of
a paper-like layer formed of a resin. In general, synthetic paper having a coating
layer containing an inorganic filler is referred to as synthetic paper of a surface
coating method, for example, Peach Coat (registered trademark) (WER-135DS, WEFY-120,
or SEY-130FPP) (Nisshinbo Paper Products Co., Ltd.). In general, synthetic paper having
a paper-like layer formed of a resin film is referred to as synthetic paper of an
internal papermaking system, for example, Yupotrace (registered trademark), New Yupo
(trade name), Ultra Yupo (registered trademark) (Yupo Corporation), and the like.
[0042] The basis weight of the outer wrapper 13 is desirably 50 g/m
2 or more and less than 200 g/m
2, more desirably 100 g/m
2 or more and less than 200 g/m
2 to obtain appropriate compression recovery in the mouthpiece portion. If the basis
weight of the outer wrapper 13 is large, it is preferable since the recovery angle
after folded of the outer wrapper 13 is also improved in general.
[0043] The thickness of the outer wrapper 13 is desirably 50 µm or more and less than 150
µm and, more desirably, 100 µm or more and less than 150 µm to obtain an appropriate
compression recovery in the mouthpiece portion. If the outer wrapper 13 is thick,
it is favorable that, in general, the recovery angle after folded is improved.
(b) Filter Material (121)
[0044] The filter material 121 may be formed of an ordinary filter material 121, and is
formed of, for example, cellulose acetate fiber. The physical properties of the filter
material 121 affect the compression recovery of the mouthpiece portion.
[0045] A plasticizer may be further added to the filter material 121. The plasticizer is
not particularly limited as long as it is a plasticizer that plasticize cellulose
acetate fiber, and examples thereof include triacetin. When a plasticizer is added
to the cellulose acetate fiber, the cellulose acetate fiber is partially melted and
the fibers are joined. As a result, the compression recovery of the filter material
121 is increased by adding a plasticizer to the cellulose acetate fiber. As the amount
of addition of the plasticizer increases, the compression recovery of the filter material
121 increases. For this reason, the compression recovery of the filter material 121
can be adjusted by adjusting the amount of addition of the plasticizer. The amount
of plasticizer added may be appropriately selected according to the compression recovery
required for the mouthpiece portion. In the filter material 121, it is preferable
that the amount of the plasticizer contained in the cellulose acetate fiber is, for
example, 0 wt% to 20 wt% with respect to the cellulose acetate fiber. In addition,
an adhesive may be added to the filter material 121. When the adhesive is added, an
effect similar to that obtained when the plasticizer is added can be obtained, and
the compression recovery of the filter material 121 is increased. For this reason,
the compression recovery of the filter material 121 can be adjusted by adjusting the
amount of addition of the adhesive. In addition, the filter material 121 may further
contain an adsorbent such as activated carbon and a flavor release material such as
a perfume capsule.
(c) Filter wrapper (122)
[0046] The filter wrapper 122 may be composed of, for example, a filter wrapper 122 used
for an ordinary smoking article provided with a filter 1, for example a cellulose-based
material, paper, cardboard, recon, cellulose-based film or a combination thereof may
be mentioned as the filter wrapper. The filter wrapper 122 may be a single layer or
may be formed of a plurality of sheets adhered by an adhesive or the like. The physical
properties of the filter wrapper 122 affect the compression recovery of the mouthpiece
portion. When the basis weight and the thickness of the filter wrapper 122 increase,
the compression recovery and the stiffness of the mouthpiece portion generally increase.
However, if the filter wrapper 122 is composed of a general-purpose filter wrapper,
i.e., paper having a thickness of 50 µm and a basis weight of 27 g/m
2, the influence on the compression recovery is small.
[0047] According to the smoking article provided with a filter 1 of the first embodiment,
since both the arithmetic mean roughness of the outer circumferential surface of the
outer wrapper 13 and the compression recovery of the mouthpiece portion are satisfied,
the effect that the user has a good feeling (holding comfort in user's mouth) when
holding the mouthpiece portion at smoking can be obtained.
[0048] In the first embodiment, an example in which the entire mouthpiece portion, which
is a filter wound with the outer wrapper, satisfies the arithmetic mean roughness
and the compression recovery is described, but the present invention is not limited
to this example. For example, only the downstream end portion of the mouthpiece portion,
in contact with the user when holding the mouthpiece portion with the lips at the
smoking, may satisfy these physical properties. The downstream end portion is, for
example, in the range of 15 mm from the downstream end side and, preferably, in the
range of 10 mm from the downstream end. Even in such a structure, since the above-described
physical characteristics are satisfied at the part where the user holds the mouthpiece
portion by the lips at smoking, smoking article provided with a filter with a good
holding comfort in user's mouth can be obtained.
[0049] In the smoking article provided with a filter according to the first embodiment,
the hardness of the filter wound with the outer wrapper is desirably less than 90%,
more desirably 80% or more and less than 90%, still more desirably 85% or more and
less than 90%. It is preferable that the hardness of the mouthpiece portion of the
smoking article provided with a filter is not extremely high.
[0050] In the first embodiment, the example in which a single filter wrapper is used is
described, but a plurality of filter wrappers may be bonded by an adhesive or the
like.
(Second Embodiment)
[0051] A smoking article provided with a filter 1 according to the second embodiment has
the same configuration as that of the first embodiment shown in FIG. 3, but is different
from the first embodiment with respect to only materials contained in the outer wrapper
13 and the filter wrapper 122.
(a) Outer wrapper (13)
[0052] The outer wrapper 13 is not particularly limited as long as its material has an arithmetic
mean roughness on the outer circumferential surface of less than 2.0 µm, more desirably
less than 1.0 µm when wound around a filter. The outer wrapper 13 is formed of, for
example, the same material as the outer wrapper 13 described in the first embodiment,
and has a smaller thickness and basis weight than those described in the first embodiment.
The outer wrapper 13 may be, for example, ordinary coated paper.
(b) Filter Wrapper (122)
[0053] The recovery angle after folded of the filter wrapper 122 is desirably 60 degrees
or more, more desirably 100 degrees or more, and still more desirably 100 degrees
or more and 120 degrees or less. The filter wrapper 122 is formed of, for example,
the same material as the base layer described in the first embodiment. The filter
wrapper 122 is desirably a film of a polyethylene resin, a polyolefin resin such as
polypropylene, or a polyester resin, and more desirably a film containing polyester
or polyolefin as a main component. It is preferable that the filter wrapper 122 is
a biaxially-drawn film to increase the rigidity and strength and to increase the recovery
angle after folded.
[0054] The basis weight of the filter wrapper 122 is desirably 50 g/m
2 or more and less than 200 g/m
2, more desirably 100 g/m
2 or more and less than 200 g/m
2 to obtain appropriate compression recovery in the mouthpiece portion. The thickness
of the filter wrapper 122 is desirably 50 µm or more and less than 150 µm and, more
desirably, 100 µm or more and less than 150 µm to obtain an appropriate compression
recovery in the mouthpiece portion. When the basis weight and the thickness of the
outer wrapper 13 increase, generally, the recovery angle after folded is improved
and the compression recovery of the mouthpiece portion increases.
[0055] In addition, the basis weight of the outer wrapper 13 and the filter wrapper 122
is desirably 50 g/m
2 or more and less than 200 g/m
2, more desirably 100 g/m
2 or more and less than 200 g/m
2 to obtain appropriate compression recovery in the mouthpiece portion. In addition,
the basis weight of the outer wrapper 13 and the filter wrapper 122 is desirably 50
µm or more and less than 150 µm, more desirably 100 µm or more and less than 150 µm
to obtain appropriate compression recovery in the mouthpiece portion.
[0056] In the configuration according to the second embodiment, the effect that the user
has a good feeling (holding comfort in user's mouth) when holding the mouthpiece portion
with the lips at smoking can be obtained, similarly to the smoking article provided
with a filter 1 according to the first embodiment.
[0057] In the second embodiment, the example in which a single filter wrapper is used is
described, but a plurality of filter wrappers may be bonded by an adhesive or the
like. In that case, it is preferable that a plurality of filter wrappers adhered has
the above-mentioned fold restoration angle. The total basis weight and thickness of
a plurality of filter wrappers are preferably within the above-mentioned range.
(Third Embodiment)
[0058] FIG. 4 is an enlarged schematic cross-sectional view showing a part of a filtered
cigarette 2 according to a third embodiment. The filtered cigarette 2 according to
the third embodiment has the same structure as the filtered cigarette 1 according
to the first embodiment except that the structure of the filter is different.
[0059] The filter 22 comprises two filter segments 22a and 22b. More specifically, the filter
22 is a socalled dual filter comprising a first filter segment 22a arranged on the
upstream side and a second filter segment 22b arranged on the downstream side.
[0060] The first filter segment 22a is composed of a first filter material 221a, and a first
inner filter wrapper 222a wound around the first filter material 221a. The second
filter segment 22b is composed of a second filter material 221b, and a second inner
filter wrapper 222b wound around the second filter material 221b. The first filter
segment 22a and the second filter segment 22b are wound and connected by an outer
filter wrapper 22c covering their outer circumferential surfaces. The outer wrapper
23 is wound around the outer circumferential surfaces of the downstream end portion
of the cigarette rod 11 and filter 22 to connect the cigarette rod 11 and the filter
22.
[0061] In the third embodiment, at a portion corresponding to at least the second filter
segment 22b located on the downstream end side, of the first and second filter segments
22a and 22b, the compression recovery after applying a compression load of 2.5 N is
60% or more, more desirably 60% or more and less than 80%, and still more desirably
60% or more and less than 70%. An arithmetic mean roughness of the outer circumferential
surface in at least a portion of the outer wrapper, corresponding to the second filter
segment 22b, is less than 2.0 µm, more desirably 1.5 µm or less, still more desirably
1.0 µm or less.
(a) Outer wrapper (23)
[0062] The outer wrapper 23 is formed of, for example, the same material as the outer wrapper
13 described in the first embodiment.
(b) Filter Material (221a, 221b)
[0063] The first filter material 221a and the second filter material 221b are formed of,
for example, the same material as the filter material 121 described in the first embodiment.
(c) Filter Wrapper (222a, 222b, 22c)
[0064] The first and second inner filter wrapper 222a and 222b is formed of the same material
as the filter wrapper 122 described in the first embodiment. The outer filter wrapper
22c is formed of, for example, the same material as the filter wrapper 122 according
to the first embodiment.
[0065] In the configuration according to the third embodiment, the downstream end portion
that contacts the lips when the user holds the mouthpiece portion by the lips at smoking
satisfies the arithmetic mean roughness of the outer wrapper and the compression recovery
of the mouthpiece portion, similarly to the smoking article provided with a filter
according to the first embodiment. For this reason, in the configuration according
to the third embodiment, the effect, that the user has a good feeling (holding comfort
in user's mouth) when holding the mouthpiece portion with the lips at smoking, can
be obtained, similarly to the first embodiment.
[0066] In the third embodiment, the first and second filter segments are formed of the same
material, but the present invention is not limited to this. For example, the smoking
article may be configured to have a dual filter having the other functions that the
first filter segment is a charcoal filter in which an adsorbent, for example, activated
carbon or the like, is dispersedly added to the fiber gaps of cellulose acetate fibers,
and the second filter segment is a white filter material composed of ordinary cellulose
acetate fibers.
[0067] In addition, the smoking article provided with a filter according to the third embodiment
is not limited to the dual filter, but may be a filter having three or more filter
segments. The smoking article provided with a filter may be configured to have one
hollow portion between two filter segments or may be configured to be provided with
a destructive perfume capsule and flavor particles in the hollow portion. In these
configurations, if the physical characteristics of the compression recovery and the
arithmetic mean roughness are satisfied at least in a portion corresponding to a filter
segment located on the downstream end side, of a plurality of filter segments constituting
the filter, the same effect as that of the smoking article provided with a filter
according to the first embodiment can be obtained.
(Fourth Embodiment)
[0068] A smoking article provided with a filter according to a fourth embodiment has the
same configuration as the smoking article provided with a filter 2 according to the
third embodiment shown in FIG. 4, and is different with respect to the only materials
to form the outer wrapper 23, the outer filter wrapper 22c and the second inner filter
wrapper 222b.
(a) Outer wrapper (23)
[0069] The outer wrapper is not particularly limited as long as its material has an arithmetic
mean roughness on the outer circumferential surface of less than 2.0 µm, more desirably
less than 1.0 µm when wound around a filter. The outer wrapper is formed of, for example,
the same material as the outer wrapper 13 described in the first embodiment, and material
having smaller thickness and basis weight than those described in the first embodiment.
The outer wrapper 23 may be, for example, ordinary coated paper.
(b) Filter Wrapper (222a, 222b, 22c)
[0070] In the fourth embodiment, the first and second filter materials 221a and 221b are
wound around two filter wrappers, i.e., the first and second inner filter wrappers
222a and 222b and the outer filter wrapper 22c.
[0071] The material of the first inner filter wrapper 222a is not particularly limited,
and is formed of, for example, the same material as the filter wrapper 122 described
in the first embodiment.
[0072] The material of the second inner filter wrapper 222b and the material of the outer
filter wrapper 22c are formed of, for example, the same material as the base layer
described in the first embodiment. The material of the second inner filter wrapper
222b and the outer filter wrapper 22c are desirably a film of a polyethylene resin,
a polyolefin resin such as polypropylene, or a polyester resin and, more desirably,
a biaxially-drawn film containing polyester or polyolefin as its main component.
[0073] The second inner filter wrapper 222b and the outer filter wrapper 22c desirably in
a state they are adhered to each other have a recovery angle after folded of 60 degrees
or more, more desirably 100 degrees or more, and still more desirably 100 degrees
or more and 120 degrees or less.
[0074] The total basis weight of the second inner filter wrapper 222b and the outer filter
wrapper 22c is desirably 50 g/m
2 or more and less than 200 g/m
2, and more preferably 100 g/m
2 or more and less than 200 g/m
2 to obtain the compression recovery of the mouthpiece portion. The total thickness
of the second inner filter wrapper 222b and the outer filter wrapper 22c is desirably
50 µm or more and less than 150 µm, more desirably 100 µm or more and less than 150
µm to obtain appropriate compression recovery in the mouthpiece portion. When the
basis weight and the thickness of the outer wrapper increase, generally, the recovery
angle after folded is increases and the compression recovery of the mouthpiece portion
increases.
[0075] In addition, the total basis weight of the outer wrapper 23, the second inner filter
wrapper 222b and the outer filter wrapper 22c is desirably 50 g/m
2 or more and less than 200 g/m
2, and more preferably 100 g/m
2 or more and less than 200 g/m
2 to obtain appropriate compression recovery of the mouthpiece portion. The total thickness
of the outer wrapper 23, second inner filter wrapper 222b, and the outer filter wrapper
22c is desirably 50 µm or more and less than 150 µm, more desirably 100 µm or more
and less than 150 µm to obtain appropriate compression recovery in the mouthpiece
portion.
[0076] In the configuration according to the fourth embodiment, the downstream end portion
that is in contact when the user holds the mouthpiece portion by the lips at smoking
satisfies the arithmetic mean roughness of the outer wrapper and the compression recovery
of the mouthpiece portion. In the configuration according to the fourth embodiment,
the effect that the user has a good feeling (holding comfort in user's mouth) when
holding the mouthpiece portion with the lips at smoking can be obtained, similarly
to the smoking article provided with a filter according to the third embodiment.
[0077] In the fourth embodiment, the filter material disposed at the downstream end is wound
with two filter wrappers, but may be wound with three or more filter wrappers. In
that case, a plurality of filter wrappers adhered preferably has the above-mentioned
recovery angle after folded. In addition, it is preferable that the total basis weight
and thickness of a plurality of sheets of filter wrapper be within the above-mentioned
range.
(Examples and Comparative Examples)
[0078] The embodiments will be further described using examples and comparative examples.
[0079] Tests (1) to (5) described below were performed out using the outer wrappers, filters,
and test samples according to Examples 1 to 7 and Comparative Examples 1 to 4 shown
in Table 1. The test sample is a filter wound with an outer wrapper produced by the
method described later. In the outer wrappers according to Examples 1 to 7 and Comparative
Examples 1 to 4, measurement of (1) arithmetic average roughness and (2) recovery
angle after folded was performed. Next, sensory evaluations of (3) compression recovery,
(4) hardness, and (5) holding comfort in user's mouth were performed by using the
test samples.
[0080] Table 1 shows product names, basis weights, thicknesses, arithmetic mean roughnesses
and fold restoration angles, and plasticizer amounts of filters, of the outer wrappers
used in Examples 1 to 7 and Comparative Examples 1 to 4, and the results of the sensory
evaluations of the compression recovery, hardness, and holding comfort in user's mouth
of the test samples.
Table 1
|
Outer wrapper |
Filter |
Test sample |
Product name |
Basis weight [g/m2] |
Thickness [µm] |
Arithmetic mean roughness [pm] |
Restoration angle after folding [°] |
Plasticizer amount [wt%] |
Compression Recovery [%] |
Hardness [%] |
Sensory evaluation [-] |
Example 1 |
Peach Coat |
180.4 |
132 |
0.7 |
100 |
0.0 |
61 |
89 |
5.1 |
Example 2 |
Peach Coat |
180.4 |
132 |
0.7 |
100 |
9.0 |
78 |
97 |
4.6 |
Example 3 |
Peach Coat |
180.4 |
132 |
0.7 |
100 |
17.0 |
73 |
98 |
4.0 |
Example 4 |
YUPOTRACE #60 |
60.7 |
61 |
1.5 |
138 |
9.0 |
60 |
86 |
4.8 |
Example 5 |
YUPOTRACE #60 |
60.7 |
61 |
1.5 |
138 |
17.0 |
73 |
91 |
4.2 |
Example 6 |
YUPOTRACE #60 |
93.5 |
92 |
1.3 |
141 |
9.0 |
68 |
89 |
4.6 |
Example 7 |
YUPOTRACE #60 |
93.5 |
92 |
1.3 |
141 |
17.0 |
69 |
92 |
4.3 |
Comparative Example 1 |
General-purpose tipping paper |
37 |
42.2 |
2.5 |
6 |
0.0 |
41 |
66 |
3.6 |
Comparative Example 2 |
Cellophane |
32.6 |
31 |
2.0 |
56 |
0.0 |
40 |
72 |
3.0 |
Comparative Example 3 |
Cellophane |
32.6 |
31 |
2.0 |
56 |
9.0 |
60 |
85 |
3.3 |
Comparative Example 4 |
Cellophane |
32.6 |
31 |
2.0 |
56 |
17.0 |
70 |
90 |
3.7 |
[0081] First, the outer wrappers according to Examples 1 to 7 and Comparative Examples 1
to 4 will be described. In Examples 1 to 3, Peach Coat (registered trademark) (WER-135DS,
Nisshinbo Paper Products Inc.), which is synthetic paper, was used. Peach Coat (registered
trademark) is formed of the base layer which is a polyethylene terephthalate film,
which is polyester resin, and a surface layer which is a white pigment coating layer.
In Examples 4 and 5, YUPOTRACE (registered trademark) (TPRA #60, Yupo Corporation)
which is synthetic paper was used. In Examples 6 and 7, YUPOTRACE (registered trademark)
(TPRA #90, Yupo Corporation) was used. YUPOTRACE (registered trademark) is formed
of a base layer which is a biaxially-drawn film formed of a polypropylene resin, and
a surface layer which is a paper-like layer formed of a resin. In contrast, in Comparative
Example 1, general-purpose tipping paper formed of paper used for filtered cigarettes
such as Mobius Light (registered trademark) of Japan Tobacco Inc. was used. In Comparative
Examples 2 to 4, cellophane (basis weight: 33 g/m
2 and thickness: 30 µm) was used.
[0082] Next, filters according to Examples 1 to 7 and Comparative Examples 1 to 4 will be
described. As the filter material, cellulose acetate fibers (Daicel Corporation) having
a filament denier of 1.9 g / 9000 m was used. As the filter wrapper, paper (manufactured
by Nippon Paper Papylia Co., Ltd.) having a thickness of 50 µm and a basis weight
of 27 g/m
2, which is a general-purpose filter wrapper, was used.
[0083] In the filters according to Example 1 and Comparative Examples 1 and 2, a filter
material composed of only cellulose acetate fibers was used. In the filters according
to Examples 2, 4 and 6 and Comparative Example 3, a filter material obtained by adding
9.0 wt% of a plasticizer which is triacetin, to cellulose acetate fibers was used.
In the filters according to Examples 3, 5 and 7 and Comparative Example 4, a filter
material obtained by adding 17.0 wt% of a plasticizer which is triacetin, to cellulose
acetate fibers was used.
[0084] In addition, the test sample was produced by the following method. The filter materials
according to Examples 1 to 7 and Comparative Examples 1 to 4 were wound in a usual
manner with a filter wrapper and cut to prepare filters having a length of 27 mm and
a diameter of 24.2 mm. Next, the outer wrappers according to Examples 1 to 7 and Comparative
Examples 1 to 4 were wound around each filter using a double-sided tape. In this test
sample, since the double-sided tape is applied only to the joint part of the outer
wrapper, the tape does not affect the sensory evaluation of the holding comfort in
user's mouth.
[0085] The contents of the tests (1) to (5) will be described below.
(1) Arithmetic Mean Roughness
[0086] The arithmetic mean roughness was measured for the outer wrappers according to Examples
1 to 7 and Comparative Examples 1 to 4. Arithmetic mean roughness was measured on
the surface serving as the outer circumferential surface when wound around a filter,
of the surfaces of the outer wrapper. The measurement of the arithmetic mean roughness
was measured using Surftest SJ-210 (trade name) manufactured by Mitutoyo Corporation.
A Gaussian filter was used for filtering in the measurement of the arithmetic mean
roughness. In addition, as the detector, a detector having a shape with a stylus tip
R = 2 µm and a tip angle of 60 degrees was used. The measurement conditions were determined
by setting the standard conditions to conform to ISO1997, and setting the roughness
curve R to the cutoff value λc = 2.5 mm, λs = 8 µm, and the number of sections (N)
4.
(2) Recovery angle after folded
[0087] The recovery angle after folded was measured for the outer wrappers according to
Examples 1 to 7 and Comparative Examples 1 to 4. As an evaluation machine, a rubber
roller and a metal roller which were in contact with each other so as to have a nip
pressure of 0.1 MPa were used. First, the outer wrappers according to Examples 1 to
7 and Comparative Examples 1 to 4 were cut in a size of 5.5 cm × 5.5 cm, and shaped
in a loop while being bent so as not to be creased and positioning one side to the
opposite side. Then, each of the outer wrappers was passed between the rubber roller
and the metal roller of the above-mentioned evaluation machine, and the each of outer
wrappers folded at 180 degrees was quickly moved onto a laboratory table, and the
recovery angle after folded (°) after 30 seconds was measured.
(3) Compression recovery
[0088] The compression recovery test was conducted on the test samples according to Examples
1 to 7 and Comparative Examples 1 to 4. The compression recovery is calculated from
a compressive deformation amount - compression restoring force curve obtained by plotting
the compression restoring force [N] corresponding to the compressive deformation amount
[mm] as shown in FIG. 1. The compressive deformation amount [mm] is the deformation
amount of the diameter of the test samples compressed by the compressive load. The
compression recovery force [N] is the force by which the compressed test samples attempt
to return to an original shape.
[0089] A rheometer (CR-3000EX-S manufactured by Sun Scientific Co., Ltd.) was used as an
evaluation machine for the measurement of the compressive deformation amount - compression
restoring force curve. FIG. 5 is a schematic view showing a method of measuring the
compression recovery. The rheometer comprises a measurement table 103 on which a test
sample is placed, and a cylindrical plunger 104 having a diameter of 10 mm. Next,
the test sample 105 was placed on an upper surface of the rheometer measurement table
103 such that the side surfaces thereof were in contact. When the plunger 104 does
not apply a compression load to the test sample 105 ((a) in FIG. 5), the compression
restoring force from the test sample 105 is 0 N, and the compressive deformation amount
is 0 mm (point A). Next, the cylindrical plunger 104 is vertically advanced at a speed
of 13 mm/minute until the compression load applied to the test sample 105 is 2.5 N,
and the test sample 105 is vertically compressed ((b) in FIG. 5). The compression
restoring force [N] corresponding to the compressive deformation amount [mm] at this
time is recorded (curve A-B). Next, when the compression load reaches 2.5 N (compression
restoring force is 2.5 N), the compression operation performed by the plunger 104
is stopped, and the compressive deformation amount T
B mm at that time is recorded (point B). After that, the compression operation is stopped,
and the plunger 104 is allowed to move freely in the vertical direction, and the compression
restoring force [N] corresponding to the compressive deformation amount mm when the
shape is restored until the restoring force from the test sample 105 becomes 0 N (curve
B-C). Next, when the compression restoring force reaches 0 N, the compressive deformation
amount T
C mm at that time is recorded (point C). As a result, different curves were shown at
the time of compression (curve A-B) and at the time of restoration (curve B-C) in
the compressive deformation amount - compression restoring force curve as shown in
FIG. 1. In FIG. 1, a point at which the compressive deformation amount T
B mm and the compression restoring force 0 N are represented as point D.
[0090] The amount of work (area of region ABD) at the time of compression (curve A-B) and
the amount of work (region CBD) at the time of restoration (curve B-C) are calculated
in the compressive deformation amount - compression restoring force curve. The compression
recovery [%] is calculated by the following equation.

(4) Hardness
[0091] The hardness test was conducted on the test samples according to Examples 1 to 7
and Comparative Examples 1 to 4. As an evaluation machine, a DD60A Densmeter manufactured
by Borgwaldt Corporation was used. The hardness is determined by applying a 2 kg load
to 10 test samples for 20 seconds and measuring the recessed average diameter of the
filter wound with the outer wrapper. The test is conducted at an ambient temperature
of 22 ± 2 degrees Celsius according to the standard test method for this instrument.
[0092] Such a device comprises two parallel metal cylinder pairs, each cylinder being 16
cm long and 10 mm in diameter. The first cylinder pair is arranged 16 mm apart and
parallel below the ten pieces of test samples to act as a support for the test samples,
and ten pieces of test samples are arranged parallel at regular intervals such that
the test samples pass the first cylinder pair. During the test, the first cylinder
pair remains stationary. The second cylinder pair is aligned with the first cylinder
pair such that the first cylinder pair and the second cylinder pair approach each
other with the test samples interposed during testing. The second cylinder pair is
arranged to move towards ten test samples, and applies 2 kg load over ten test samples.
At this time, the first and second cylinder pairs each contact the test samples at
20 points. The load is held on the test sampled for 20 seconds, and the test is completed
after measuring the diameters of the compressed test samples. During the test, the
test samples are arranged apart so as not to touch each other. A frame is used to
support the tips of the ten test samples, enabling the ten test samples to be certainly
spaced apart at regular intervals and parallel to one another during the test.
[0093] This test method is the same as the hardness measurement method disclosed in
JP 2016-523565 A.
(5) Sensory Evaluation of Holding Feeling
[0094] The test samples according to Examples 1 to 7 and Comparative Examples 1 to 4 were
actually held by a panel of twenty-three persons, and the sensory evaluation was conducted
on the feeling of holding the mouthpiece portion by the lips (holding comfort in user's
mouth). The panel of twenty-three persons evaluated the holding comfort in user's
mouth by numerical values of seven stages, i.e., "7" when feeling that they felt very
comfortable, "6" when feeling that they liked it, "5" when feeling that they like
it a little, "4" when feeling that they cannot say either, "3" when feeling a little
dislike, "2" when feeling dislike, and "1" when feeling very disgusting, and the values
were averaged.
[0095] As clarified from the results of Table 1, in the test samples according to Examples
1 to 7 in which the arithmetic mean roughness of the outer circumferential surface
of the outer wrapper is less than 2.0 µm and the compression recovery is 60% or more,
the sensory evaluation was a high value between 4.0 and 5.1. All the test samples
according to Examples 1 to 7 have the recovery angle after folded on the outer wrapper
of 100 degrees or more. In addition, in Examples 1, 4 and 6 in which the hardness
of the test samples is less than 90%, of Examples 1 to 7, the sensory evaluation was
a particularly high numerical value of 4.6 to 5.1. In particular, in Example 1 in
which the arithmetic mean roughness is 0.7 µ or less, the compression recovery is
61%, the hardness is 89%, and the recovery angle after folded is 100 degrees, the
compression recovery was a value of 5.1, i.e., the highest value.
[0096] In contrast, in Comparative Examples 1 to 4 in which the arithmetic mean roughness
is 2.0 or more, the sensory evaluation was a low numerical value of less than 4.0.
In Comparative Examples 1 to 4, all the recovery angles after folded of the outer
wrappers were less than 60 degrees.
[0097] As described above, it was represented that the test samples according to Examples
1 to 7 having an arithmetic mean roughness of less than 2.0 µm on the outer circumferential
surface of the outer wrapper and a compression recovery of 60% or more are highly
evaluated in the sensory evaluation and their attraction is improved.
[0098] While certain embodiments have been described, these embodiments have been presented
by way of example only, and are not intended to limit the scope of the invention as
defined by the appended claims. Indeed, these embodiments described herein may be
embodied in a variety of other forms; furthermore, various changes in the form of
the embodiment described herein may be made without departing from the scope of the
invention as defined by the appended claims.
Reference Signs List
[0099] 1 ... smoking article provided with a filter according to first embodiment, 11 ...
aerosol generation member (cigarette rod), 111 ... shredded tobacco, 112 ... cigarette
paper, 12, 22 ... filter, 121 ... filter material, 13, 23 ... outer wrapper, 2 ...
smoking article provided with a filter according to third embodiment, 22a ... first
filter segment, 22b ... second filter segment, 221a ... first filter material, 221b
... second filter material, 222a ... first inner filter wrapper, 222b ... second inner
filter wrapper, 22c ... outer filter wrapper.
1. Rauchartikel (1), der mit einem Filter (12) bereitgestellt wird, Folgendes umfassend:
ein Aerosol erzeugendes Element (11);
einen Filter (12), der ein Filtermaterial (121) und eine oder mehrere Filterhüllen
(122) umfasst, die um eine Außenumfangsoberfläche des Filtermaterials herumgewickelt
sind; und
eine Außenhülle (13), die um die Außenumfangsoberflächen eines Endteils des Aerosol
erzeugenden Elements und den Filter herumgewickelt ist;
dadurch gekennzeichnet, dass
die Außenumfangsoberfläche der Außenhülle eine arithmetische mittlere Rauheit von
weniger als 2,0 µm aufweist, und
der mit der Außenhülle umwickelte Filter eine Kompressionsrückstellkraft von 60% oder
mehr aufweist, nachdem eine Kompressionslast von 2,5 N auf einen Bereich einer Länge
von 10 mm in der Durchmesserrichtung davon aufgebracht wird.
2. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 1, dadurch gekennzeichnet, dass die arithmetische mittlere Rauheit der Außenumfangsoberfläche der Außenhülle 1,0 µm oder weniger beträgt.
3. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Wiederherstellungswinkel nach dem Falten der Außenhülle oder der einen oder mehrerer
Filterhüllen 60 Grad oder mehr beträgt.
4. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 3, dadurch gekennzeichnet, dass der Wiederherstellungswinkel nach dem Falten der Außenhülle oder der einen oder mehrerer
Filterhüllen 100 Grad oder mehr beträgt.
5. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 4, dadurch gekennzeichnet, dass der Wiederherstellungswinkel nach dem Falten der Außenhülle oder der einen oder mehrerer
Filterhüllen 100 Grad oder mehr und 120 Grad oder weniger beträgt.
6. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 1
bis 5, dadurch gekennzeichnet, dass die Außenhülle ein Blatt ist, das eine Vielzahl von Schichten beinhaltet.
7. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 6, dadurch gekennzeichnet, dass das Blatt, das die Vielzahl von Schichten beinhaltet, eine Grundschicht umfasst,
die sich aus einer Folie zusammensetzt, die Polyolefin oder Polyester als eine Hauptkomponente
enthält.
8. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 7, dadurch gekennzeichnet, dass die Grundschicht eine biaxial gezogene Folie ist.
9. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass das Blatt, das die Vielzahl von Schichten beinhaltet, weiter eine Oberflächenschicht
umfasst, die auf einer Oberfläche oder beiden Oberflächen der Grundschicht bereitgestellt
wird.
10. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 9, dadurch gekennzeichnet, dass die Oberflächenschicht einen anorganischen Füllstoff enthält.
11. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 1
bis 10, dadurch gekennzeichnet, dass eine Härte des mit der Außenhülle umwickelten Filters weniger als 90% beträgt.
12. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 1
bis 11, dadurch gekennzeichnet, dass ein Grundgewicht der Außenhülle 100 g/m2 oder mehr beträgt.
13. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 1
bis 12, dadurch gekennzeichnet, dass eine Dicke der Außenhülle 100 µm oder mehr beträgt.
14. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 1
bis 11, dadurch gekennzeichnet, dass die eine oder mehrere Filterhüllen Folien sind, die Polyolefin als eine Hauptkomponente
enthalten, oder Folien, die Polyester als eine Hauptkomponente enthalten.
15. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 14, dadurch gekennzeichnet, dass die eine oder mehrere Filterhüllen biaxial gezogene Folien sind.
16. Rauchartikel, der mit einem Filter bereitgestellt wird, nach Anspruch 14 oder 15,
dadurch gekennzeichnet, dass ein Gesamtgrundgewicht der einen oder mehrerer Filterhüllen 100 g/m2 oder mehr beträgt.
17. Rauchartikel, der mit einem Filter bereitgestellt wird, nach einem der Ansprüche 14
bis 16, dadurch gekennzeichnet, dass eine Gesamtdicke der einen oder mehrerer Filterhüllen 100 µm oder mehr beträgt.