Technical Field
[0001] This invention relates to a tipping paper and a filtered cigarette product.
Background Art
[0002] A filtered cigarette product, for example, a filter-tipped cigarette is an article
formed by placing a cigarette rod and filter in opposition to each other and in contact
with each other, and winding a tipping paper around an outer circumferential surface
of the filter and around an outer circumferential surface of the cigarette rod in
the vicinity of the opposed part to thereby integrate the cigarette rod and filter
into one article.
[0003] When a filter-tipped cigarette is smoked in a state where the smoker is wearing lipstick,
the lipstick attached to the lip of the smoker adheres to the tipping paper, and the
smoker has a feeling of discomfort in some cases for the reason that the lipstick
comes off the lip to require fixing of the smoker's makeup, or that the lipstick adheres
to the tipping paper to thereby spoil the external appearance of the cigarette, and
so on.
[0004] In Patent Literature 1, a filter-tipped cigarette in which cigarette filter wrapping
having a red color as a ground color is used, and which is thereby capable of making
the lipstick adhering to the cigarette filter wrapping inconspicuous, and alleviating
the feeling of discomfort of the smoker caused by the lipstick adhering to the cigarette
filter wrapping to spoil the external appearance of the cigarette is disclosed.
[0005] In Patent Literature 2, a paper or nonwoven article comprises a nonwoven web layer.
The nonwoven web layer comprises a plurality of fibers and a plurality of binder microfibers.
The binder microfibers comprise a water non-dispersible, synthetic polymer. The binder
microfibers have a length of less than 25 millimeters and a fineness of less than
0.5 d/f. The binder microfibers further have a melting temperature that is less than
the melting temperature of the fibers. The nonwoven web layer may comprise a coating.
After the nonwoven web layer is subjected to drying and thermal bonding, the coating
may be applied to the nonwoven web and/or paper. The coating can comprise a decorative
coating, a printing ink, a barrier coating, an adhesive coating, and a heat seal coating.
The coating can comprise a liquid barrier and/or a microbial barrier.
[0006] In Patent Literature 3 a method for producing a filter cigarette with tipping paper
having improved lip release properties is disclosed. Lip release chemicals are applied
to one side of a base tipping paper during its manufacture in a papermaking process
by surface coating, followed by manufacture of the cigarette using otherwise conventional
apparatus and materials according to known procedures
Citation List
Patent Literature
Summary of Invention
Technical Problem
[0008] However, the cigarette filter wrapping disclosed in Patent Literature 1 is not to
prevent the adhering itself of the lipstick to the cigarette filter wrapping.
[0009] This invention relates to provide a tipping paper and a filtered cigarette product
capable of reducing adhesion of lipstick to a tipping paper surface when the filtered
cigarette product is smoked.
Means for Solving the Problem
[0010] According to the present invention, a tipping paper characterized by including a
front surface layer and back surface layer, and in which the front surface layer has
surface properties satisfying a following formula (1) is provided.

(where Rsk is a skewness of the surface, and Rc is an average height)
[0011] The front surface layer (11) is a nonwoven fabric, and the nonwoven fabric is formed
of wood pulp and rayon fiber with binder fiber, or of rayon fiber and binder fiber,
wherein a fiber thickness is greater than or equal to 0.8dtex and less than or equal
to 11dtex, the nonwoven fabric possesses a basis weight of greater than or equal to
10gsm and less than or equal to 70gsm, and the amount of the rayon fiber based on
the total amount of the wood pulp and the rayon fiber with the binder fiber is greater
than or equal to 40% by weight and less than or equal to 80% by weight.
Advantageous Effects of Invention
[0012] The present invention can reduce adhesion of lipstick or the like to a tipping paper
surface when a filtered cigarette product is smoked.
Brief Description of Drawings
[0013]
FIG. 1 is a schematic cross-sectional view of a tipping paper according to a first
embodiment.
FIG. 2 is a schematic enlarged view of a nonwoven fabric.
FIG. 3 is a schematic cross-sectional view of a tipping paper according to a second
embodiment.
FIG. 4 is a schematic cross-sectional view of a tipping paper according to a third
embodiment.
FIG. 5 shows a tipping paper according to a fourth embodiment and, (A) is a perspective
view of a back surface layer provided with a decorative section at an upper surface
thereof, and (B) is a perspective view of the whole tipping paper.
FIG. 6 is a schematic cross-sectional view along a line VI-VI of FIG. 5.
FIG. 7 is a schematic cross-sectional view of a tipping paper according to a fifth
embodiment.
FIG. 8 is a schematic cross-sectional view of a tipping paper according to a sixth
embodiment.
FIG. 9 is a schematic cross-sectional view of a tipping paper according to a seventh
embodiment.
FIG. 10 is a perspective view showing a filtered cigarette according to an eighth
embodiment.
FIG. 11 is a view for explaining a method of attaching lipstick to tipping paper by
using a rheometer.
FIG. 12 is a view showing a relationship between the surface roughness and color difference
ΔE.
FIG. 13 is a view showing a result of a sensory evaluation.
[0014] Mode for Carrying Out the Invention Hereinafter, several embodiments will be described
with reference to the accompanying drawings. Elements common throughout the embodiments
are to be denoted by identical reference symbols, and duplicated explanation is omitted.
Further, each drawing is a schematic view for promoting understanding of the embodiment,
and there are positions different from the actual situation in shape, dimensions,
and ratio. Further, in this specification, in order to indicate a relative positional
relationship, although terms "above", "below", and the like are appropriately used
in correlation with the drawings, these terms are not to specify the absolute positional
relationship.
(First Embodiment)
[0015] FIG. 1 is a schematic cross-sectional view of a tipping paper 1 according to a first
embodiment. The tipping paper 1 is provided with a front surface layer 11 and a back
surface layer 12.
[0016] The front surface layer 11 has surface properties which satisfy a formula (1): -8.2×Rsk-0.2×Rc<0.
In the formula (1), Rsk represents the skewness, and Rc represents the average height.
The tipping paper has the surface properties indicated by the formula (1), whereby
it is possible to reduce the area of contact between the lip and tipping paper. It
is more desirable that the front surface layer 11 should have surface properties which
satisfy a formula (2): -8.2×Rsk-0.2×Rc<-20. The surface properties indicated by the
formulae (1) and (2) will be described later.
[0017] The front surface layer 11 is normally formed of a material producing surface properties
specified by the above formula (1) with respect to the upper surface profile (concavo-convex
shape) thereof. Examples of such a material include an aggregate of partially combined
fibers, for example, a nonwoven fabric. In FIG. 2, a part of the flat surface of such
a nonwoven fabric is shown in an enlarging manner. A plurality of fibers (fibers for
nonwoven fabric) 13 constituting the nonwoven fabric are combined with each other
at combining parts 14 through fusion bonding substances 15 to thereby form an aggregate.
The fiber 13 is a rayon fiber. The fusion bonding substance 15 is a substance formed
when a binder fiber such as a polyvinyl alcohol (PVA) fiber, polyethylene glycol (PEG)
fiber, vinylon fiber is melted in the process of putting the front surface layer 11
and back surface layer 12 one on top of the other to dry the layers 11 and 12 to be
described later, and combines the fibers 13 for the nonwoven fabric with each other.
The nonwoven fabric may include pulp in addition to the fibers 13 for the nonwoven
fabric and binder fiber. In the nonwoven fabric, each of constituent fibers has a
thickness greater than or equal to 0.8dtex and less than or equal to 11dtex, and has
a basis weight greater than or equal to 10 and less than or equal to 70gsm. In a preferred
embodiment, in a nonwoven fabric, each of constituent fibers has a thickness greater
than or equal to 3.3dtex and less than or equal to 11dtex, and has a basis weight
greater than or equal to 10gsm and less than or equal to 70gsm. Further, the nonwoven
fabric may be colored by a dye such as a food additive colorant or the like. It should
be noted that in this specification, the "nonwoven fabric" includes paper. In general,
as a method of forming a nonwoven fabric, for example, a dry method, a wet method,
a spunbonding method, a melt-blowing method, and an air-laid method are known. Further,
as a method of combining fibers constituting the nonwoven fabric with each other,
for example, a chemical bonding method, a thermal bonding method, a needle punching
method, and a hydroentangling method are known. Although the nonwoven fabric contained
in the front surface layer 11 is formed by the wet method, and fibers 13 for the nonwoven
fabric are combined with each other by the thermal bonding method, as the method of
forming the nonwoven fabric and the method of combining the nonwoven fabric fibers
13, other generally known methods may also be used.
[0018] In Table 1, general physical properties required of the tipping paper are shown.
In order that the tipping paper 1 can satisfy, as a whole, the general physical properties
required of the tipping paper, for example, tensile strength or the like, a back surface
layer 12 can be provided on the under surface of the front surface layer 11. The back
surface layer 12 can be formed of a material known in the field concerned as a material
for the tipping paper, for example, pulp or the like.
Table 1
Physical Properties |
Units |
Range |
Tensile Strength |
N/15mm |
26.0≤ |
Elongation |
% |
1.4≤ |
[0019] The tipping paper 1 can be obtained by combining the front surface layer 11 and back
surface layer 12 with each other by a papermaking method well known to those skilled
in the art. This papermaking method includes at least a process of combining a material
constituting the front surface layer 11 and material constituting the back surface
layer 12 with each other, and a process of drying the resultant. As the paper machine,
conventionally known ones, for example, a cylinder paper machine, inclined tanmo machine,
fourdrinier paper machine, tanmo machine, and the like can be used, and paper machines
can be appropriately combined according to the prescribed properties. This papermaking
method includes, for example, a process of combining wet paper formed of a suspension
of a material constituting the front surface layer 11 by means of a cylinder paper
machine and wet paper formed of a suspension of a material constituting the back surface
layer 12 by means of a fourdrinier paper machine with each other. Further, the wet
paper combined in this way can be dried by using conventionally known drying methods
such as the yankee dryer method, multi-cylinder method, hot-air method, infrared heating
method, and the like. In one embodiment, the wet paper laminated body of the front
surface layer 11 and back surface layer 12 can be dried by using a dryer of a temperature
of 100°C to 150°C.
[0020] It should be noted that at this time, fibers contained in the front surface layer
11 and having adhesiveness when melted, such as polyvinyl alcohol (PVA) fibers, polyethylene
glycol (PEG) fibers, vinylon fibers are melted, whereby the fibers become fusion bonding
substances 15 having adhesiveness and the fusion bonding substances 15 can combine
fibers 13 constituting the front surface layer 11 with each other. It should be noted
that regarding the method of combining the front surface layer 11 and back surface
layer 12 with each other, the method is not limited to the aforementioned papermaking
methods, and other conventionally known papermaking methods may also be used. As such
papermaking methods, methods described in "
Hand book of pulp and paper technology 1982", Japan Technical Association of the Pulp
and Paper Industry, pp. 284 to 305 can be used.
[0021] The conventional tipping paper has, like the generally used printing paper, not a
structure formed by combining two layers having different physical properties, and
has a single layer structure, in which the surface properties of the front surface
and back surface are approximately identical and the smoothness of both the surfaces
is high. For this reason, in a filter-tipped cigarette provided with the conventional
tipping paper, the tipping paper tends to come into close contact with the lip of
the smoker at the time of smoking. As a result, lipstick or the like attached to the
lip of the smoker becomes liable to move onto the tipping paper. Further, in the conventional
tipping paper, there is sometimes a case where the lip is released from the tipping
paper during smoking, the smoker's lip adheres to the tipping paper depending on the
state of the smoker's lip or the environment and, when the adhesion is strong, there
is even a case where the skin of the lip comes off.
[0022] However, the tipping paper 1 according to this embodiment is provided with the front
surface layer 11 having surface properties satisfying the above formula (1), and thereby
can reduce the area of contact between the lip and tipping paper 1, and hence can
reduce adhesion of a substance such as lipstick attached to the surface of the smoker's
lip to the tipping paper 1. Furthermore, even when lipstick is not used, it is possible
to prevent unpleasant phenomena such as adhesion of the skin of the smoker's lip to
the tipping paper, coming off of the skin of the lip when the lip is released from
the tipping paper, and so on from occurring. The quality of the tipping paper which
makes it easy for the tipping paper and lip to separate from each other when the cigarette
is to be released from the lip is expressed by that the lip-releasability is excellent.
(Second Embodiment)
[0023] In FIG. 3, a schematic cross-sectional view of a tipping paper 2 according to a second
embodiment is shown. The tipping paper 2 according to the second embodiment has a
configuration identical to the tipping paper 1 according to the first embodiment except
that the front surface layer 11 and back surface layer 12 are stuck with an adhesive
layer 21.
[0024] As the adhesive layer 21, a water-based adhesive or hot-melt adhesive can be used.
As the water-based adhesive, for example, a starch-based, cellulose-based, PVA-based,
polyvinyl acetate (PVAc)-based, and ethylene-vinyl acetate (EVA)-based adhesive can
be used. As the hot-melt adhesive, a resin-based, polyethylene (PE)-based, and polypropylene
(PP)-based adhesive can be used. When the resin-based adhesive is used as the adhesive,
the resin-based adhesive layer 21 has a luster and reflects light incident on the
resin-based adhesive layer 21, and hence it is possible to provide elegant tipping
paper in which light leaks out of gaps between fibers of the front surface layer 11
to thereby impart a unique feeling to the tipping paper. Further, as the adhesive
layer 21, a colored resultant formed by mixing the aforementioned adhesive with dye
may also be used.
(Third Embodiment)
[0025] In FIG. 4, a schematic cross-sectional view of a tipping paper according to a third
embodiment is shown. The tipping paper according to the third embodiment has a configuration
identical to the tipping paper 1 according to the first embodiment except that a coating
agent layer 31 is provided on the upper surface of the front surface layer 11.
[0026] The coating agent layer 31 can be provided by applying a coating agent to the upper
surface of the front surface layer 11. By providing the coating agent layer 31, it
is possible to prevent fibers in the front surface layer 11 from falling off. As the
coating agent, for example, starch, nitrocellulose or polyvinyl alcohol or a combination
of these can be used. It is desirable that the coating agent be such an amount as
not to significantly change the surface properties of the front surface layer 11.
For example, it is desirable that the coating agent be less than or equal to 0.8gsm
from the viewpoint of guaranteeing the surface properties of the nonwoven fabric.
(Fourth Embodiment)
[0027] Next, a tipping paper 4 according to a fourth embodiment will be described below
with reference to FIG. 5 and FIG. 6.
[0028] FIG. 5 shows the tipping paper 4 according to the fourth embodiment, and (A) is a
perspective view of a back surface layer 12 of that, and (B) is a perspective view
of the whole tipping paper 4. FIG. 6 is a schematic cross-sectional view along a line
VI-VI of FIG. 5. The tipping paper 4 according to the fourth embodiment is provided
with a front surface layer 11, back surface layer 12, and adhesive layer 21. As shown
in FIG. 5(A), the back surface layer 12 is provided with a decorative section 41 on
an upper surface (surface opposed to the front surface layer 11) thereof. The decorative
section 41 can be provided by printing a decorative pattern on the upper surface of
the back surface layer 12. Although the tipping paper 4 has a configuration identical
to the tipping paper 2 according to the second embodiment except that the tipping
paper 4 is provided with the decorative section 41 on the back surface layer 12, it
is desirable that the adhesive to be used as the adhesive layer 21 (FIG. 6) be transparent
so that the decorative section 41 can be seen through from the front surface layer
11 side.
[0029] As shown in FIG. 5(B), in the tipping paper 4, the decorative section 41 is provided
on the upper surface of the back surface layer 12, whereby the decorative section
41 can be seen through from the front surface layer 11, thereby making the tipping
paper 4 excellent in design.
(Fifth Embodiment)
[0030] In FIG. 7, a schematic cross-sectional view of a tipping paper 5 according to a fifth
embodiment is shown. The tipping paper 5 according to the fifth embodiment has a configuration
identical to the tipping paper 1 according to the first embodiment except that a surface
modifier layer 51 is provided on the upper surface of the front surface layer 11.
[0031] The surface modifier layer 51 can be provided by applying a surface modifier configured
to prevent, for example, lipstick or the like from adhering to the tipping paper to
the upper surface of the front surface layer 11. As the surface modifier, for example,
a fluorine-based resin or silicon-based resin can be used. By forming the surface
modifier layer 51, it is possible to further prevent substances from adhering to the
surface of the tipping paper 5. The thickness of the surface modifier layer 51 can
appropriately be adjusted according to the substance to be used as the surface modifier
and the lipstick adhesion reducing effect required of the tipping paper 5.
(Sixth Embodiment)
[0032] In FIG. 8, a schematic cross-sectional view of a tipping paper according to a sixth
embodiment is shown. The tipping paper according to the sixth embodiment has a configuration
identical to the tipping paper 1 according to the first embodiment except that an
embossed pattern is provided on the front surface layer 11. The embossed pattern is
constituted of a convex section 61 and concave section 62.
[0033] The embossed pattern can be provided by passing the tipping paper between a pair
of embossing rolls.
[0034] By providing the embossed pattern on the front surface layer 11, it is possible to
obtain a more lipstick adhesion reducing effect and, at the same time, provide tipping
paper excellent in design. The embossing can be carried out to such a degree that
the surface properties of the front surface layer 11 are not deteriorated.
(Seventh Embodiment)
[0035] In FIG. 9, a schematic cross-sectional view of a tipping paper according to a seventh
embodiment is shown. The tipping paper 7 according to the seventh embodiment has a
configuration identical to the tipping paper 2 according to the second embodiment
except that a front surface layer 11 is provided with, for example, a plurality of
colored sections 71 separate from each other.
[0036] Each of the colored sections 71 extends from the upper surface of the front surface
layer 11 to a plane thereof opposed to the back surface layer 12. The colored sections
71 can be formed by carrying out printing such as gravure printing, ink jet printing
or the like using a colorant such as ink or the like. By providing the colored sections
71 in the front surface layer 11, it is possible to make a feeling different from
a case where printing is carried out on normal tipping paper having a flat surface.
(Eighth Embodiment)
[0037] Next, a filtered cigarette product according to an eighth embodiment will be described
below. Here, although a filter-tipped cigarette will be described as an example of
a filtered cigarette product, the filtered cigarette product is not limited to this
and may be other smoking articles to which a filter is connected, such as a cigar
and a cigarillo in addition to non-combustion smoking supplies and unheated smoking
supplies, and the like which utilize electric heating/heat of chemical reaction.
[0038] As shown in FIG. 10, a filter-tipped cigarette 8 is provided with a cigarette rod
81, a filter 82 arranged in such a manner that an end part thereof is placed in opposition
to and in contact with an end part of the cigarette rod 81, and a tipping paper 83
wound around the whole outer circumferential surface of the filter 82 and around the
outer circumferential surface part of the cigarette rod 81 near the opposition/contact
position, and integrating the cigarette rod 81 and filter 82 into one body. The cigarette
rod 81 is provided with shredded tobacco 84 and rolled paper 85 wound around the shredded
tobacco 84 into a cylindrical shape. The filter 82 is provided with a filter material
(not shown) formed by binding or folding up, for example, acetate fibers or nonwoven
fabric of pulp, and filter paper 86 rolling the filter material up into a cylindrical
shape.
[0039] Such a filter-tipped cigarette 8 according to the embodiment can reduce adhesion
of lipstick on the surface of the lip of the smoker to the tipping paper, while maintaining
the functional characteristics (tensile strength and opacity) caused by the advantageous
effects of the tipping paper according to each of the first to seventh embodiments.
(Example)
[0040] In order to clarify a relationship between the surface properties of the tipping
paper and lipstick adhering state, test samples were used to carry out (1) measurement
of the lipstick adhering state and (2) sensory evaluation. Hereinafter, descriptions
will be given in detail with reference to the accompanying drawings.
[0041] First, test samples different from each other in characteristics were prepared. Each
of the test samples is provided with a front surface layer and a back surface layer.
The front surface layer is constituted of a nonwoven fabric. The nonwoven fabric is
formed of wood pulp and rayon fiber with binder fiber, or rayon fiber and binder fiber
by hand making, and has different surface roughness, fiber length, and basis weight
for each test samples. As the rayon fiber, that having a thickness of 0.1dtex to 11.0dtex
was used. Further, test samples in which polyvinyl alcohol or starch was used as a
coating agent for prevention of fiber falling-off were also manufactured.
[0042] As the back surface layer, paper formed by using wood pulp generally used as a material
for tipping paper was used. Further, test samples in which the front surface layer
and back surface layer were stuck with a vinyl acetate-based adhesive or resin-based
adhesive were also manufactured.
[0043] It should be noted that measurement of the surface roughness was carried out by using
SURFTEST SJ-210 (trade name) manufactured by Mitutoyo Corporation. The filtering process
in the surface roughness measurement was carried out by using the Gaussian filter.
Further, as the detector, that having a shape of a stylus front R of 2pm and front
edge angle of 60° was used. The measurement condition was obtained by setting the
standard condition in conformity with ISO1997 and setting the roughness curve R to
cutoff values λc=2.5mm, λs=8µm, and number of sections (N) 4.
(1) measurement of adhering state
Reproduction of adhesion to lipstick
[0044] Adhesion of lipstick attached to the lip of a smoker to the tipping paper of a case
where a filter-tipped cigarette is actually used was reproduced by using a rheometer.
FIG. 11 is a view for explaining the method of making lipstick 95 adheres to the tipping
paper 93 by using a rheometer (CR-3000EX-S manufactured by Sun Scientific Co., Ltd.).
[0045] FIG. 11(A) is a schematic view showing a state where tipping paper 93 of a test sample
is put on the rheometer.
[0046] The rheometer is provided with a cylindrical plunger 91 having a diameter of 10mm,
and measuring table 92 on which the tipping paper 93 of the test sample is to be placed.
Next, the tipping paper 93 of the test sample is placed on the top surface of the
measuring table 92 of the rheometer. A gel 94 is placed on the top surface of the
tipping paper 93. The gel 94 have elasticity and softness similar to a human lip,
and "HITOHADA
® gel" (trade name), product number: H0-1, manufactured by EXSEAL Co., Ltd. having
such physical properties that the pressure thereof at the time of deformation by 1mm
is 0.53N±0.34 was used. To the lower surface of the gel 94, i.e., to the surface of
the tipping paper 93 side, lipstick 95 is applied. As the lipstick 95, Max Factor
Angelic Lip Brilliante (trade name, product number B542) was used. A flat plate 96
is placed on the top surface of the gel 94. The flat plate 96 can equalize the pressure
to be applied to the tipping paper 93 when the plunger 91 is pressed in the vertical
direction against the gel 94 and the flat surface of the tipping paper 93. The flat
plate 96 is a flat plate formed of, for example, plastic. The tipping paper 93, gel
94, and flat plate 96 are held between the plunger 91 and measuring table 92.
[0047] FIG. 11(B) is a view showing a state where fixed pressure is applied to the flat
plate 96, tipping paper 93 and gel 94 in the vertical direction for a constant time
by thrusting the plunger 91 in a direction perpendicular to the planes of the flat
plate 96, gel 94, and tipping paper 93. At this time, the pressure to be applied to
the tipping paper 93 was set in such a manner that the pressure reaches the maximum
pressure 2.5N after an elapse of about one second from the start of application of
pressure, and becomes 0N after an elapse of about two seconds in order that the pressure
can become approximately equal to the pressure to be applied to the tipping paper
when the filter-tipped cigarette is actually smoked. Further, at this time, setting
was made in such a manner that the moving speed of the plunger 91 in the direction
toward the measuring table 92 becomes 70mm/min. Thereby, the lipstick 95 attached
to the gel 94 is transferred to the tipping paper 93, and it is possible to reproduce
adhesion of the lipstick 95 to the tipping paper 93 of a case where a filter-tipped
cigarette including the tipping paper 93 of the test sample is actually used.
Measurement of Degree of Lipstick Adhesion
[0048] Measurement of the degree of adhesion of the lipstick to the tipping paper was carried
out, after the lipstick was adhered to the tipping paper by using the rheometer as
described above, by measuring a color difference ΔE between a place on the tipping
paper to which the lipstick was adhered and place to which the lipstick was not adhered.
Measurement of the color difference ΔE was carried out by means of a spectrophotometer
(manufactured by X-Rite Inc., product name: SpectroEye) by obtaining an average value
of coordinates of the L
∗a
∗b
∗ color coordinate system of the color difference display method specified by CIE,
and calculating a color difference ΔE between the place on the tipping paper to which
the lipstick was adhered and place to which the lipstick was not adhered. It should
be noted that the condition of measurement by the spectrophotometer was made that
the light source was D65, light source filter was not used, and viewing angle was
set to 2°.
Result
[0049] A measurement result obtained by the above procedures will be described. It should
be noted that as a result of carrying out similar measurement with respect to existing
white tipping paper having 37gsm as a comparative example, a color difference ΔE of
51.2 was obtained.
[0050] First, relationships between the fiber length, fiber thickness, and color difference
ΔE with respect to a test sample having a rayon combination ratio of 90% by weight,
fibrous PVA combination ratio of 10% by weight, and basis weight of 30gsm are shown
in Table 2. As is evident from Table 2, the larger the thickness of the fiber, the
lower the color difference ΔE becomes, and it can be seen that it is desirable that
the fibers of the nonwoven fabric be larger. Further, it was found that when the thickness
of the fibers is 0.8dtex or more, the color difference ΔE is lower than the color
difference ΔE of the comparative example by about 10, and a lipstick adhesion reducing
effect can be obtained. Furthermore, it was found that when the thickness of the fibers
is 3.3dtex or more, the color difference ΔE is lower than the color difference ΔE
of the comparative example by about 30 or more, and a more lipstick adhesion reducing
effect can be obtained.
Table 2
|
Fiber Thickness (dtx) |
Fiber Length (mm) |
Color difference ΔE |
Test Sample 1 |
0.8 |
2 |
31 |
Test Sample 2 |
0.8 |
4 |
43 |
Test Sample 3 |
0.8 |
10 |
31 |
Test Sample 4 |
1.7 |
5 |
31 |
Test Sample 5 |
1.7 |
10 |
31 |
Test Sample 6 |
1.7 |
15 |
22 |
Test Sample 7 |
3.3 |
5 |
21 |
Test Sample 8 |
3.3 |
10 |
18 |
Test Sample 9 |
3.3 |
20 |
25 |
Test Sample 10 |
7.8 |
8 |
10 |
Test Sample 11 |
11 |
10 |
10 |
[0051] Further, relationships between the basis weight, rayon combination ratio of the nonwoven
fabric, and color difference ΔE with respect to a test sample which has a fibrous
PVA combination ratio of 10% by weight, rayon combination ratio as shown in Table
3, and in which the remaining combination ratio is constituted of wood pulp, and the
thickness of rayon is 7.8dtex are shown in Table 3. First, when an observation of
a relationship between the basis weight and color difference ΔE is made, the lower
the basis weight, the lower the color difference ΔE becomes, and hence it can be seen
that it is desirable that the basis weight be lower. However, although not shown in
Table 3, in a nonwoven fabric having a basis weight less than 10gsm, the gel gets
into gaps between fibers of the nonwoven fabric to reach the back surface layer, and
thus a result that the lipstick adhesion reducing effect was remarkably impaired was
obtained, and hence it was found that it is desirable that the basis weight of a nonwoven
fabric be greater than or equal to 10gsm. Next, when an observation of a relationship
between the rayon combination ratio of the nonwoven fabric and color difference ΔE
is made, the higher the rayon combination ratio of the nonwoven fabric, the lower
the color difference ΔE becomes, and thus it can be seen that the higher the rayon
combination ratio of the nonwoven fabric, the higher the lipstick adhesion reducing
effect becomes.
Table 3
|
Basis Weight (gsm) |
Rayon combination ratio (%) |
Color difference ΔE |
Test Sample 12 |
30 |
40 |
21.6 |
Test Sample 13 |
30 |
60 |
17.9 |
Test Sample 14 |
30 |
80 |
11. 9 |
Test Sample 15 |
50 |
40 |
31.0 |
Test Sample 16 |
50 |
60 |
19.8 |
Test Sample 17 |
50 |
80 |
12.4 |
Test Sample 18 |
70 |
40 |
34.8 |
Test Sample 19 |
70 |
60 |
21.7 |
Test Sample 20 |
70 |
80 |
13.6 |
[0052] Further, the highest lipstick adhesion reducing effect was obtained by the tipping
paper of the test sample which has a rayon combination ratio of 90% by weight, fibrous
PVA combination ratio of 10% by weight, and basis weight of 15gsm, and in which a
starch coating agent is used among the test samples.
[0053] Relationship between Surface roughness and Color difference
[0054] Further, data on the surface roughness and color difference ΔE obtained in the manner
described above was used to carry out multiple regression analysis in which the color
difference ΔE was used as an objective variable and various roughness parameters were
used as dependent variables. As a result, regarding the roughness parameter, it was
found that the color difference ΔE can be estimated by using two variables of the
skewness Rsk and average height Rc. That is, it was found that the color difference
ΔE is obtained from the skewness Rsk and average height Rc according to a formula:
ΔE=-8.18×Rsk-0.21×Rc+40, and the condition of the lipstick adhering to the tipping
paper can be estimated from the color difference ΔE. It should be noted that the square
of the multiple correlation coefficient by the correlation analysis was r
2=0.82. Further, the square (r
2) of the single correlation coefficient by the single correlation analysis of each
of the Rsk and Rc, r
2 was 0.28 in the Rsk, and r
2 was 0.67 in the Rc. When it is desired to lower the color difference ΔE, i.e., when
it is desired to enhance the lipstick adhesion reducing effect, it is sufficient if
the Rsk is increased in order to reduce the area of contact between the lip and tipping
paper and/or it is sufficient if the Rc is increased in order to reduce the influence
due to biting of the lip into gaps between fibers of the front surface layer.
[0055] FIG. 12 is a view formed by setting the skewness (Rsk) to the X-axis coordinate value,
and average height (Rc) to the Y-axis coordinate value, and plotting measurement results
of thirty-eight test samples, and is a view showing relationships between the surface
roughness and color difference ΔE. It should be noted that in figure, in the measured
color difference ΔE, a test sample with ΔE<10 is indicated by a white circular plot,
test samples with 10≤ΔE<20 are indicated by black circular plots, test samples with
20≤ΔE<30 are indicated by white square plots, and test samples with 30≤ΔE<40 are indicated
by black square plots, respectively. Further, a measurement result of the case where
existing white tipping paper having 37gsm was used as a comparative example is indicated
by a white triangular plot.
[0056] Further, lines in figure express straight lines specified by a ΔE=-8.18×Rsk-0.21×Rc+40
and, respectively indicate a line (solid line) of a case where ΔE in the formula of
straight lines is 10, line (alternate long and short dash line) of a case where ΔE
is 20, line (broken line) of a case where ΔE is 30, and line (dotted line) of a case
where ΔE is 40.
[0057] As described previously, the color difference ΔE measured with respect to the existing
white tipping paper having 37gsm of the comparative example is 51.2. When assuming
such a level that can be visually recognized in comparison with the color difference
ΔE measured with respect to the existing white tipping paper having 37gsm of the comparative
example to be a color difference ΔE=10 corresponding to one rate of the Munsell chroma,
i.e., to be a level which can be recognized if the level is lower than the color difference
ΔE measured with respect to the comparison example by 10 or more, all the color differences
ΔE measured with respect to the tipping paper of the test samples plotted in FIG.
10 were less than 40, and were on the recognizable level.
[0058] Assuming that, on the basis of this result, a color difference ΔE<40 smaller than
the color difference ΔE measured with respect to the existing white tipping paper
having 37gsm by 10 or more is in the recognizable area, it is necessary that the formula
(1): -8.2×Rsk-0.2×Rc<0 should be satisfied. Further, as a more remarkable effect,
when a color difference ΔE<20 smaller than the color difference ΔE measured with respect
to the existing white tipping paper having 37gsm by 30 or more is required, it is
necessary that the formula (2): -8.2×Rsk-0.2×Rc<-20 should be satisfied.
[0059] As described above, it was found that a state of adhesion of a substance attached
to the surface of a lip to the tipping paper can be calculated by parameterizing the
state of adhesion by means of the surface properties (Rsk and Rc) of the front surface
layer.
(2) Sensory Evaluation
[0060] Filter-tipped cigarettes each provided with tipping paper of the test samples were
actually used by six female panelists in a state where lipstick is attached to the
lip or in a state where lipstick attached to the lip is once wiped off by means of
tissue paper or the like, whereby sensory evaluation of the state of adhesion of the
lipstick to the tipping paper was carried out. In FIG. 13, the results are shown.
FIG. 13 is a view formed by plotting the evaluation results in a state where the horizontal
axis is set to the measured color difference ΔE, and the longitudinal axis is set
to the sensory amount. Evaluation results of the test samples are indicated by white
rhombic plots, and evaluation results of the comparative example are indicated by
black rhombic plots. It should be noted that regarding the sensory amount in the drawing,
when it was felt by the female panelists that adhesion of lipstick to the tipping
paper was not found at all, evaluation was made as a numerical value of "0", when
it was felt that slight adhesion of lipstick was found, evaluation was made as "1",
when it was felt that adhesion of lipstick was felt to a certain degree, evaluation
was made as "2", when it was felt that adhesion of lipstick was evidently found, evaluation
was made as "3", when it was felt that adhesion of lipstick was considerably found,
evaluation was made as "4", and when it was felt that adhesion of lipstick was remarkably
found, evaluation was made as a numerical value of "5", and the sensory amount is
a value acquired by averaging the numerical values obtained from the six female panelists.
Further, each of the quadrilaterals surrounding the plotted points in figure indicates
a range of variation of 1σ. That is when the variation in the results of the answers
is large, the quadrilateral becomes larger and, when the variation is small, the quadrilateral
becomes smaller. Further, regarding the straight lines connecting plotted points and
quadrilaterals indicating the ranges of variations in the test samples and comparative
example, when evaluation of a case where the lipstick is not wiped off by using tissue
paper or the like is to be indicated, the evaluation is indicated by a solid line
and, when evaluation of a case where the lipstick is once wiped off is to be indicated,
the evaluation is indicated by dotted lines.
[0061] As is evident from FIG. 13, in the sensory evaluation of the case where the lipstick
attached to the lip is not wiped off by using tissue paper or the like, the comparative
example was evaluated as "considerable adhesion" and, conversely, the test samples
was evaluated as "a certain degree of adhesion", and the sensory amount associated
with the state of adhesion of the lipstick to the tipping paper is lowered. Further,
regarding the color difference ΔE, ΔE is also about 50 in the comparative example
and, conversely, ΔE is measured about 30 in the test samples, and is lowered like
the sensory amount and, it can be seen that when the lipstick attached to the lip
is not wiped off by using tissue paper or the like, there is a correlation relationship
between the color difference ΔE and sensory amount.
[0062] Further, in the sensory evaluation of the case where the lipstick attached to the
lip is once wiped off by using tissue paper or the like, the comparative example was
evaluated as "a certain degree of adhesion" and, conversely, the test samples was
evaluated as "slight adhesion", and the sensory amount associated with the state of
adhesion of the lipstick to the tipping paper is lowered. Further, regarding the color
difference ΔE, ΔE is also about 20 in the comparative example and, conversely, ΔE
is measured about 7 in the test samples, and is lowered like the sensory amount and,
it can be seen that even when the lipstick attached to the lip is once wiped off by
using tissue paper or the like, there is a correlation relationship between the color
difference ΔE and sensory amount.
[0063] Further, when the lip-releasability of the test samples was measured in the similar
manner, it was found that the test samples have lip-releasability overwhelmingly superior
to the tipping paper of the comparative example.
[0064] Thus, when a questionnaire was carried out for the above six panelists about whether
or not they are charmed by the test samples and tipping paper of the comparative example
as a lipstick adhesion reducing product, all the members answered "not feel charm"
in the comparative example and, conversely, in the tipping paper of the test samples,
one panelist answered "greatly feel charm", one panelist answered "considerably feel
charm", three panelists answered "feel a certain degree of charm", one panelist answered
"slightly feel charm", and thus it was found that the tipping paper of the test samples
is overwhelmingly improved in charm as compared with the existing white tipping paper
of the comparative example having 37gsm.
[0065] As described above, it was demonstrated that the tipping paper of the test samples
has a lipstick adhesion reducing effect and lip-releasability effective in the sensory
evaluation.
Reference Signs List
[0066] 1 ··· tipping paper according to the first embodiment 11 ··· front surface layer
12··· back surface layer 13 ··· fiber 14 ··· combining part 15 ··· fusion bonding
substances 2 ··· tipping paper according to the second embodiment 21 ··· adhesive
layer 3 ··· tipping paper according to the third embodiment 31 ··· coating agent layer
4 ··· tipping paper according to the fourth embodiment 41 ··· decorative section 5
··· tipping paper according to the fifth embodiment 51 ··· surface modifier layer
6 ··· tipping paper according to the sixth embodiment 61 ··· convex section 62 ···
concave section 7 ··· tipping paper according to the seventh embodiment 71 ··· colored
section 8 ··· filter-tipped cigarette 81 ··· cigarette rod 82 ··· filter 83 ··· tipping
paper 84 ··· shredded tobacco 85 ··· rolled paper 86 ··· filter paper 91 ··· plunger
92 ··· measuring table 93 ··· tipping paper 94 ··· gel 95 ··· lipstick 96 ··· flat
plate
1. Mundstückpapier (1), dadurch charakterisiert, dass es umfasst:
eine vorderseitige Oberflächenschicht (11) und eine rückseitige Oberflächenschicht
(12), wobei die vorderseitige Oberflächenschicht (11) Oberflächeneigenschaften aufweist,
die der folgenden Formel (1) genügen:

wobei Rsk eine Schiefe der Oberfläche ist und Rc eine durchschnittliche Höhe ist,
wobei Rsk und Rc unter Verwendung von SURFTEST SJ-210, hergestellt von Mitutoyo Corporation,
gemessen werden,
die vorderseitige Oberflächenschicht ein Vliesstoff ist, und
der Vliesstoff aus Zellstoff und Reyonfaser mit Bindefaser oder aus Reyonfaser und
Bindefaser gebildet ist, wobei
eine Faserdicke größer als oder gleich 0,8 dtex und kleiner als oder gleich 11 dtex
ist,
der Vliesstoff ein Flächengewicht von größer als oder gleich 10 gsm und kleiner als
oder gleich 70 gsm aufweist, und
die Menge der Reyonfaser, bezogen auf die Gesamtmenge des Zellstoffs und der Reyonfaser
mit der Bindefaser, größer als oder gleich 40 Gew.-% und kleiner als oder gleich 80
Gew.-% ist.
2. Mundstückpapier (1) gemäß Anspruch 1, dadurch charakterisiert, dass die vorderseitige
Oberflächenschicht (11) Oberflächeneigenschaften aufweist, die der folgenden Formel
(2) genügen.
3. Mundstückpapier (1) gemäß Anspruch 1 oder 2, dadurch charakterisiert, dass die vorderseitige
Oberflächenschicht (11) ein Aggregat aus partiell kombinierten Fasern enthält.
4. Mundstückpapier (1) gemäß Anspruch 1 bis 3, dadurch charakterisiert, dass der Vliesstoff
aus Zellstoff und Reyonfaser oder Reyonfaser mit einer Dicke von größer als oder gleich
3,3 dtex und kleiner als oder gleich 11 dtex gebildet ist.
5. Mundstückpapier (1) gemäß einem der Ansprüche 1 bis 4, dadurch charakterisiert, dass
der Vliesstoff ein Beschichtungsmittel, bestehend aus einem Polymer, enthält.
6. Mundstückpapier (1) gemäß Anspruch 5, dadurch charakterisiert, dass das Beschichtungsmittel
aus Stärke, Nitrocellulose oder Polyvinylalkohol oder einer Kombination dieser besteht.
7. Mundstückpapier (1) gemäß einem der Ansprüche 1 bis 6, dadurch charakterisiert, dass
die vorderseitige Oberflächenschicht (11) und die rückseitige Oberflächenschicht (12)
mit einem wasserbasierten Klebstoff oder einem Schmelzklebstoff verklebt sind.
8. Mundstückpapier (1) gemäß einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass eine Oberfläche der rückseitigen Oberflächenschicht (12), die der vorderseitigen
Oberflächenschicht (11) gegenüberliegt, dekoriert ist.
9. Mundstückpapier (1) gemäß einem der Ansprüche 1 bis 8, dadurch charakterisiert, dass
die vorderseitige Oberflächenschicht (11) auf einer Oberfläche einen Oberflächenmodifikator,
bestehend aus einem fluorbasierten Harz oder einem silikonbasierten Harz, aufweist.
10. Mundstückpapier (1) gemäß einem der Ansprüche 1 bis 9, dadurch charakterisiert, dass
die vorderseitige Oberflächenschicht (11) ein geprägtes Muster aufweist.
11. Gefiltertes Zigarettenprodukt (8), dadurch charakterisiert, dass es umfasst: eine
Zigarettenstange (81); einen Filter (82); und ein Mundstückpapier (83), das die Zigarettenstange
(81) und den Filter (82) verbindet, wobei das Mundstückpapier (83) das Mundstückpapier
(1) gemäß einem der Ansprüche 1 bis 10 ist.