[Technical Field]
[0001] The present invention relates to a tipping paper for smoking articles, and more particularly,
to a tipping paper to which a technology capable of reducing a tobacco smell that
may cling to fingers of a smoker is applied and a smoking article including the same
and a method of producing the tipping paper.
[Background Art]
[0002] Various attempts have been made using a fragrance material to mask a tobacco smell
caused by smoking. However, since a tipping paper for smoking articles that comes
in direct contact with fingers of a smoker while the smoker smokes requires printing
and drying processes in the production process, there is a need to develop a tipping
paper for smoking articles, which is capable of masking a tobacco smell on fingers
while solving a discoloration issue, a drying process issue, and a curl occurrence
issue of the tipping paper, and a smoking article including the same.
[Disclosure]
[Technical Problem]
[0003] The present invention is directed to providing a tipping paper capable of reducing
a tobacco smell on fingers and a smoking article including the same.
[0004] Objectives of the present invention are not limited to the above-mentioned objective,
and other unmentioned objectives should be clearly understood by those of ordinary
skill in the art to which the present invention pertains from the description below.
[Technical Solution]
[0005] Some embodiments of the present invention provide a tipping paper for smoking articles
that surrounds at least a partial region of a smoking material portion and a smoking
article filter portion so that the smoking material portion and the smoking article
filter portion are combined, the tipping paper including a fragrance carrier which
consists of a fragrance material and a carrier material which includes the fragrance
material, wherein the fragrance material included in the carrier material is expressed
outside the tipping paper in response to moisture, saliva, or friction, and the carrier
material is a material soluble in ethanol.
[0006] The carrier material may be 2-hydroxypropyl-β-cyclodextrin, and the fragrance material
may include at least one or more materials of vanillin and ethyl vanillin.
[0007] A weight ratio of the vanillin with respect to the total weight of the fragrance
material may be in a range of 15% to 25%, and a weight ratio of the ethyl vanillin
with respect to the total weight of the fragrance material may be in a range of 5%
to 15%.
[0008] The fragrance carrier may be included in the tipping paper through a fragrance carrier
printing process that uses a fragrance carrier ink including the ethanol, the fragrance
material, and the carrier material.
[0009] A weight ratio of the fragrance material with respect to the total weight of the
fragrance carrier ink may be greater than 0% and lower than or equal to 1.5%, and
a weight ratio of the carrier material with respect to the total weight of the fragrance
carrier ink may be greater than 0% and lower than or equal to 15%.
[0010] In some embodiments, the fragrance carrier ink may further include a binder, and
a weight ratio of the binder with respect to the total weight of the fragrance carrier
ink may be greater than 0% and lower than or equal to 15%. The binder may be a polymer
material that is soluble in ethanol and has a molecular weight in a range of 3,000
to 20,000 and a glass transition temperature in a range of 60 °C to 90 °C.
[0011] In some embodiments, the fragrance carrier ink may further include microcapsules,
and a weight ratio of the microcapsules with respect to the total weight of the fragrance
carrier ink may be greater than 0% and lower than or equal to 25%.
[0012] A weight ratio of the binder with respect to the total weight of the fragrance carrier
ink may be in a range of 5% to 10%, and a weight ratio of the microcapsules with respect
to the total weight of the fragrance carrier ink may be in a range of 5% to 20%. The
microcapsules may each have a diameter in a range of 1.5 µm to 5.0 µm, the microcapsules
may each include polyvinyl alcohol (PVA), a fragrance, and a cross-linking agent,
and a content ratio of the PVA and the fragrance included in each microcapsule may
be in a range of 1:3 to 1:7.
[0013] The fragrance carrier printing process may be performed after an overprint varnish
(OPV) process is applied to the tipping paper.
[0014] Some embodiments of the present invention provide a smoking article including a smoking
material portion which is wrapped by a smoking material wrapper, a filter portion
whose upstream end is combined with the smoking material portion and which is wrapped
by a filter wrapper, and a tipping paper which surrounds at least a partial region
of the smoking material portion and the filter portion so that the smoking material
portion and the filter portion are combined, wherein the tipping paper includes a
fragrance carrier which consists of a fragrance material and a carrier material which
includes the fragrance material, the fragrance material included in the carrier material
is expressed outside the tipping paper in response to moisture, saliva, or friction,
and the carrier material is a material soluble in ethanol.
[0015] Some embodiments of the present invention provide a method of producing a tipping
paper for smoking articles that surrounds at least a partial region of a smoking material
portion and a smoking article filter portion so that the smoking material portion
and the smoking article filter portion are combined and includes a fragrance material
and a carrier material which includes the fragrance material, the method including
adding the carrier material to ethanol and stirring a solution obtained thereby, adding
the fragrance material to the solution in which the carrier material is added to ethanol
and stirring a solution obtained thereby, adding a binder to the solution in which
the carrier material and the fragrance material are added to ethanol and stirring
a solution obtained thereby, and a printing step in which the solution in which the
carrier material, the fragrance material, and the binder are added to ethanol is used
as a fragrance carrier ink and printed on the tipping paper.
[0016] In some embodiments, the method may further include, before the printing step, adding
microcapsules to the fragrance carrier ink and stirring a solution obtained thereby,
wherein a core of each microcapsule may be an ethanol-based fragrance, a shell of
each microcapsule may be PVA, and the microcapsules may be produced by stirring the
ethanol-based fragrance and the PVA at room temperature, adding a cross-linking agent
to a solution in which the ethanol-based fragrance and the PVA are stirred and stirring
a solution obtained thereby at a temperature which is higher than or equal to 60 °C
and lower than or equal to 100 °C, and cooling the solution in which the ethanol-based
fragrance, the PVA, and the cross-linking agent are stirred.
[Advantageous Effects]
[0017] According to embodiments of the present invention, since a fragrance material is
included in a fragrance carrier material and then a process of printing a fragrance
carrier on a tipping paper is applied, it is possible to effectively reduce a smell
on fingers caused by smoking and solve a tipping paper curl issue and a tipping paper
surface contamination problem which occur due to application of the printing process.
[0018] In addition, since the fragrance material is included in a carrier and printed, it
is possible to reduce the amount of fragrance expressed during simple storage of smoking
articles and increase the amount of fragrance expressed during smoking.
[0019] Further, since ethanol is used as a solvent for ink used in a fragrance carrier printing
process, and the extent to which an ink is dried and the extent to which a curl occurs
in the tipping paper are secured at an equivalent level compared to a case in which
the fragrance carrier printing process is not applied, it is possible to also secure
the workability of printing the fragrance carrier.
[Description of Drawings]
[0020]
FIG. 1 is a view illustrating a schematic configuration of a smoking article to which
a tipping paper according to some embodiments of the present invention is applied.
FIG. 2 shows results of smoking sensory evaluation relating to smoking articles two
weeks after production thereof according to Example 1, Comparative Example 1, and
Comparative Example 4.
FIG. 3 shows results of smoking sensory evaluation relating to smoking articles two
months after production thereof according to Example 1, Comparative Example 1, and
Comparative Example 4.
FIG. 4 shows results of smoking sensory evaluation relating to smoking articles two
weeks after production thereof according to Examples 10 to 12 and Comparative Example
1.
[Modes of the Invention]
[0021] Hereinafter, exemplary embodiments of the present invention will be described in
detail with reference to the accompanying drawings. Advantages and features of the
present invention and a method of achieving the same should become clear with embodiments
described in detail below with reference to the accompanying drawings. However, the
present invention is not limited to embodiments disclosed below and may be implemented
in various other forms. The embodiments make the disclosure of the present invention
complete and are provided to completely inform one of ordinary skill in the art to
which the present invention pertains of the scope of the invention. The present invention
is defined only by the scope of the claims. Like reference numerals refer to like
elements throughout.
[0022] Unless otherwise defined, all terms including technical or scientific terms used
herein have the same meaning as commonly understood by those of ordinary skill in
the art to which the present invention pertains. Terms defined in commonly used dictionaries
should not be construed in an idealized or overly formal sense unless expressly so
defined herein.
[0023] Also, in the specification, a singular expression includes a plural expression unless
the context clearly indicates otherwise. The terms "comprises" and/or "comprising"
used herein do not preclude the presence of or the possibility of adding one or more
elements, steps, operations, and/or devices other than those mentioned.
[0024] Terms including ordinals such as "first" or "second" used herein may be used to describe
various elements, but the elements are not limited by the terms. The terms are only
used for the purpose of distinguishing one element from another element.
[0025] Throughout the specification, "smoking article" may refer to anything capable of
generating an aerosol, such as tobacco (cigarette) and cigar. The smoking article
may include an aerosol-generating material or an aerosol-forming substrate. Also,
the smoking article may include a solid material based on tobacco raw materials, such
as reconstituted tobacco leaves, shredded tobacco, and reconstituted tobacco. A smoking
material may include a volatile compound.
[0026] Also, throughout the specification, "upstream" or "upstream direction" refers to
a direction moving away from an oral region of a user smoking a smoking article 100,
and "downstream" or "downstream direction" refers to a direction approaching the oral
region of the user smoking the smoking article 100. For example, in the smoking article
100 illustrated in FIG. 1, a smoking material portion 120 is disposed upstream or
in an upstream direction from a filter portion 110.
[0027] Further, in the specification, a case in which the smoking article 100 is a combustion-type
cigarette is described as an example. However, the present invention is not limited
thereto, and the smoking article 100 may also be a heating-type cigarette or the like
that is used together with an aerosol generation device (not illustrated) such as
an electronic cigarette device.
[0028] FIG. 1 is a view illustrating a schematic configuration of a smoking article to which
a tipping paper according to some embodiments of the present invention is applied.
[0029] Referring to FIG. 1, the smoking article 100 may include the filter portion 110 wrapped
by a filter wrapper 110a, the smoking material portion 120 wrapped by a smoking material
wrapper 120a, and a tipping paper 130 configured to combine the filter portion 110
and the smoking material portion 120.
[0030] The filter portion 110 may be disposed downstream from the smoking material portion
120 and may be a region through which an aerosol material generated in the smoking
material portion 120 passes right before being inhaled by the user.
[0031] The filter portion 110 may be formed of various materials. For example, the filter
portion 110 may be a cellulose acetate filter.
[0032] In some embodiments, the filter portion 110 may be a cellulose acetate filter not
scented with a fragrance material, but the present invention is not limited thereto.
The filter portion 110 may also be a transfer jet nozzle system (TJNS) filter scented
with a fragrance material.
[0033] In some embodiments, the filter portion 110 may be a tubular structure including
a hollow formed therein. The filter portion 110 may also be manufactured by inserting
structures such as films or tubes formed of the same or different materials thereinto
(for example, into the hollow).
[0034] Meanwhile, a hardness of the filter portion 110 may be adjusted by controlling the
content of plasticizer during manufacture of the filter portion 110. Triacetin may
be applied as a plasticizer and included at a weight ratio in a range of 5 to 15%
with respect to the total weight of the filter portion 110, but the type and content
of the plasticizer are not limited thereto and may be properly controlled as necessary.
[0035] The filter portion 110 of the present embodiment is illustrated as a mono filter
formed of a single filter, but the present invention is not limited thereto. For example,
the filter portion 110 may, of course, be provided as a dual filter which includes
two acetate filters, a triple filter, or the like in order to increase filter efficiency.
[0036] Further, although not illustrated, a capsule (not illustrated) may be included inside
the filter portion 110. The capsule may have a structure in which a liquid including
a fragrance and filled therein is wrapped by a film. For example, the capsule may
have a spherical or cylindrical shape. A diameter of the capsule may be in a range
of about 2.6 mm to 3.5 mm but is not limited thereto. The diameter of the capsule
may vary according to the standard of the smoking article 100.
[0037] Materials forming the film of the capsule may be a natural material, starch, and/or
a gellant. For example, a film made of a natural material may be composed of agar,
pectin, sodium alginate, glycerin, and the like. Gellan gum or gelatin may be used
as the gellant. Also, a gelation auxiliary agent may be further used as a material
forming the film of the capsule. Here, as the gelation auxiliary agent, for example,
calcium chloride may be used. Also, a plasticizer may be further used as a material
forming the film of the capsule. Here, as the plasticizer, glycerin and/or sorbitol
may be used. Also, a coloring agent may be further used as a material forming the
film of the capsule.
[0038] In some embodiments, as a solvent for the fragrance included in the liquid filled
in the capsule, for example, a medium chain fatty acid triglyceride (MCTG) may be
used. The liquid may also contain other additives such as coloring, an emulsifier,
and a thickener.
[0039] A fragrance such as menthol and an essential oil of plants may be included in the
liquid filled in the capsule, but the present invention is not limited thereto.
[0040] The filter portion 110 may be wrapped by the filter wrapper 110a. In some embodiments,
the filter wrapper 110a may be produced using grease-resistant wrapping paper. In
order to prevent a liquid filled in the capsule included in the filter portion 110,
which is released to the outside of the capsule due to the smoker crushing the capsule,
from passing through the filter wrapper 110a, the filter wrapper 110a may be produced
using grease-resistant wrapping paper. In some embodiments, an aluminum foil may be
further included at an inner surface of the filter wrapper 110a.
[0041] The filter portion 110 is disposed downstream of the smoking material portion 120
and serves as a filter through which an aerosol material generated in the smoking
material portion 120 passes right before being inhaled by the user.
[0042] The smoking material portion 120 may contain an aerosol-generating material. For
example, the smoking material portion 120 may include tobacco strands. The smoking
material portion 120 may have the form of a longitudinally extending rod which may
have various lengths, circumferences, and diameters.
[0043] In some embodiments, the aerosol-generating material may include at least one of
glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol,
triethylene glycol, tetraethylene glycol, and oleyl alcohol.
[0044] In some embodiments, the smoking material portion 120 may also contain other additives
such as a flavoring agent, a wetting agent, and/or an acetate compound. For example,
the flavoring agent may include licorice, saccharose, fructose syrup, isosweet, cocoa,
lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, white sandalwood, bergamot,
geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, cinnamon,
caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage, spearmint,
ginger, cilantro, coffee, or the like. Also, the wetting agent may include glycerin,
propylene glycol, or the like.
[0045] In some embodiments, the smoking material portion 120 may include a reconstituted
tobacco material which is formed in the shape of pieces of rods or the like by grinding
tobacco raw materials, mixing a solvent and various additives with the ground tobacco
raw materials to make a tobacco slurry, drying the tobacco slurry to form a tobacco
sheet, and then processing the tobacco sheet. For example, the smoking material portion
120 may include a plurality of tobacco material strands, and each strand may have
a length in a range of about 10 mm to 14 mm (for example, 12 mm), a width in a range
of about 0.8 mm to 1.2 mm (for example, 1 mm), and a thickness in a range of about
0.08 mm to 0.12 mm (for example, 0.1 mm), but the present invention is not limited
thereto.
[0046] Since the smoking material portion 120 includes a plurality of strand materials formed
by processing a wide tobacco sheet, a density of tobacco materials filled in the smoking
material portion 120 may increase. Accordingly, the amount of aerosol generated may
be increased, and smoking characteristics of the smoking material portion 120 may
be improved.
[0047] The smoking material portion 120 may be wrapped by the smoking material wrapper 120a.
[0048] In some embodiments, the smoking material wrapper 120a may include a filler. Accordingly,
an opacity of the smoking material wrapper 120a may be increased, porosity may be
imparted to the smoking material wrapper 120a, smoothness and ash integrity of the
cigarette paper may be improved, and whiteness of the cigarette paper may be increased.
Materials such as calcium carbonate, titanium dioxide, and magnesium oxide may be
used as the filler, but the present invention is not limited thereto.
[0049] Also, although not illustrated, the smoking material wrapper 120a may have a double
wrapping paper structure. Specifically, the smoking material wrapper 120a may include
an inner wrapper (not illustrated) that comes in contact with the smoking material
portion 120 and surrounds the smoking material portion 120 and an outer wrapper that
comes in contact with the inner wrapper and surrounds an outer portion of the inner
wrapper.
[0050] The filter portion 110 wrapped by the filter wrapper 110a and the smoking material
portion 120 wrapped by the smoking material wrapper 120a may be wrapped together by
the tipping paper 130. That is, the tipping paper 130 may wrap around at least a portion
(for example, a partial downstream region) of the smoking material wrapper 120a and
an outer boundary of the filter wrapper 110a. In other words, at least a portion of
the smoking material portion 120 and the filter portion 110 may be further wrapped
by the tipping paper 130 and physically combined.
[0051] In some embodiments, the tipping paper 130 may be produced using nonporous wrapping
paper that is not treated to be grease-resistant, but the present invention is not
limited thereto.
[0052] The tipping paper 130 may be coated with a sweetener such as sucralose and citric
acid. Also, a predetermined material may be added into the tipping paper 130. Silicone
may be an example of the predetermined material, but the predetermined material is
not limited thereto. For example, silicone has characteristics such as being heat-resistant,
i.e., not changing much according to temperature, being oxidation-resistant, i.e.,
not being oxidized, being resistant to various chemicals, being water-repellent, and
being electrically insulated. However, any material other than silicone may be applied
or coated on the tipping paper 130 as long as the material has the above-described
characteristics.
[0053] The tipping paper 130 may prevent a phenomenon in which the filter portion 110 is
combusted. For example, in a case in which the smoking material portion 120 is combusted
up to a portion thereof adjacent to the filter portion 110, there is a possibility
that the filter portion 110 may also be combusted. Even in this case, since the tipping
paper 130 includes an incombustible material, the phenomenon in which the filter portion
110 is combusted may be prevented.
[0054] Meanwhile, during manufacture of the smoking material wrapper 120a, various attempts
have been made as described above, such as including a filler in the smoking material
wrapper 120a using various compositions and methods, forming the double wrapping paper
structure in the smoking material wrapper 120a, or applying a water-soluble fragrance
carrier that includes a fragrance to the smoking material wrapper 120a, in order to
reduce a tobacco smell caused by smoke generated during smoking. However, apart from
the sidestream smoke reduction effect or the like of the various attempts, since a
portion coming in direct contact with fingers of a smoker while the smoker smokes
is the tipping paper 130 instead of the smoking material wrapper 120a, a technology
for reducing a tobacco smell on fingers that may be directly applied to the tipping
paper 130, instead of the smoking material wrapper 120a, is required to effectively
reduce the tobacco smell on the fingers.
[0055] Thus, the tipping paper 130 of the present invention includes a fragrance carrier
which consists of a fragrance material for masking a tobacco smell and a carrier material
for including the fragrance material. The fragrance carrier may be included in the
tipping paper through a process of printing the fragrance carrier on the tipping paper
by using a fragrance carrier ink including ethanol, the fragrance material, and the
carrier material.
[0056] The fragrance carrier ink may be produced by sequentially adding the carrier material,
the fragrance material, and a binder to the ethanol and stirring solutions obtained
thereby. Specifically, the fragrance carrier ink may be produced by: i) adding the
carrier material to ethanol and stirring a solution obtained thereby for about 30
minutes to 60 minutes; ii) adding the fragrance material to the solution in which
the carrier material is added to ethanol and stirring a solution obtained thereby
for about 15 minutes to 45 minutes; and iii) adding the binder to the solution in
which the carrier material and the fragrance material are added to ethanol and stirring
a solution obtained thereby for about 15 minutes to 45 minutes.
[0057] In a case in which the fragrance carrier ink includes microcapsules which will be
described below, the method of producing the fragrance carrier ink may further include,
after the step iii), iv) adding microcapsules to the solution in which the carrier
material, the fragrance material, and the binder are added to ethanol and stirring
a solution obtained thereby for about 15 minutes to 45 minutes.
[0058] The fragrance carrier printing process may be performed by mixing the fragrance carrier
with an ink used in an overprint varnish (OPV) process that is performed on the tipping
paper. However, preferably, in order to maximize the amount of carried fragrance that
is delivered to the tipping paper, the fragrance carrier printing process may be performed
as a printing process separate from the OPV process after the OPV process.
[0059] In some embodiments, the fragrance carrier ink may further include a binder and/or
microcapsules. The binder and microcapsules will be described in detail below.
[0060] The carrier material in the present invention is a material that is soluble in ethanol
but not soluble in water, isopropyl alcohol, and the like. For example, the carrier
material may be 2-hydroxypropyl-β-cyclodextrin.
[0061] This is because, in reality, a method of applying a water-soluble fragrance carrier
material (for example, β-cyclodextrin), which includes a fragrance material, to the
above-described smoking material wrapper 120a cannot be applied as is to the tipping
paper 130 that requires printing and drying processes. Specifically, when applying
the water-soluble fragrance carrier method to the tipping paper 130, water should
be used as a solvent for ink. In this case, the surface energy of the ink may be increased
to about 70 mN/m to 75 mN/m and thus difficulty may occur in the drying process after
the ink is printed on the tipping paper 130, and problems such as contamination of
the tipping paper and a phenomenon in which the ink peels off due to weakening of
a binding force between the printed ink and the tipping paper may occur. Further,
in a case in which a drying temperature or drying time is increased to dry the ink
of which the surface energy is increased, a curl of the tipping paper is increased.
Unlike the above, in a case in which a fragrance material is printed on the tipping
paper without applying the carrier method, due to a characteristic of the tipping
paper being disposed at an outermost portion of the smoking article, the fragrance
material may be lost to the outside of the smoking article during a period in which
the smoking article is stored, or the tipping paper may be discolored according to
storage conditions such as light exposure and humidity level.
[0062] On the contrary, in a case in which a polymer material, such as 2-hydroxypropyl-β-cyclodextrin,
that is soluble in ethanol and includes a hydrophobic fragrance material, is applied
as the carrier material that is applied to the tipping paper as in the present invention,
ethanol may be used as a solvent for ink, and thus ink having a surface energy of
about 20 mN/m to 50 mN/m may be used. Accordingly, it is possible to apply the printing
and drying processes of the tipping paper, and not only the workability of producing
smoking articles, but also the stability of storing the smoking articles may be secured
because there is no discoloration issue.
[0063] Meanwhile, the fragrance material included in the carrier material may be expressed
outside the tipping paper 130 (that is, outside the smoking article 100) in response
to moisture, saliva, or friction, and the expressed fragrance material may be spread
to the fingers of the smoker gripping the tipping paper portion and serve to mask
the tobacco smell on the fingers.
[0064] Further, since the fragrance material remains included in the carrier material and
is not expressed before moisture or saliva is spread from the smoker to the tipping
paper or friction is transmitted to the tipping paper (for example, by the smoker
gripping or rubbing the tipping paper), a problem in that a scent is lost over the
storage period or a problem in that a fragrance is unnecessarily expressed while the
smoker is just keeping the smoking article may be solved.
[0065] The fragrance material included in the carrier material may include at least one
or more materials of vanillin and ethyl vanillin.
[0066] Meanwhile, as will be described below with reference to Table 7 and Table 8, a sum
of weight ratios of the vanillin and ethyl vanillin in consideration of the tipping
paper discoloration issue may be greater than 0% and lower than or equal to 50% with
respect to the total weight of the fragrance material. Preferably, the weight ratio
of vanillin with respect to the total weight of the fragrance material may be greater
than 0% and lower than or equal to 30%, and the weight ratio of ethyl vanillin with
respect to the total weight of the fragrance material may be greater than 0% and lower
than or equal to 20%. More preferably, the weight ratio of the vanillin with respect
to the total weight of the fragrance material may be in a range of about 15% to 25%,
and the weight ratio of the ethyl vanillin with respect to the total weight of the
fragrance material may be in a range of about 5% to 15%.
[0067] The fragrance material may include various components other than the vanillin and
ethyl vanillin. Table 1 shows components of the fragrance material which were confirmed
to maximize the effect of reducing the tobacco smell on fingers.
[Table 1]
Classification |
COMPONENT RATIO (RANKING) |
ROSEMARY OIL |
1 |
VANILLIN |
2 |
FERMENTED ETHYL ALCOHOL |
3 |
LAVANDIN OIL |
4 |
ETHYL VANILLIN |
5 |
EUCALYPTOL |
6 |
LIME OIL |
7 |
ANISE OIL |
8 |
DAVANA OIL |
9 |
PEPPERMINT OIL |
10 |
ETHYL MALTOL |
11 |
SPEARMINT OIL |
12 |
ANGELICA ROOT OIL |
13 |
CLARY SAGE OIL |
14 |
2,3,5-TRIMETHYL PYRAZINE |
15 |
GAMMA-HEPTALACTONE |
16 |
HELIOTROPINE |
17 |
BETA-DAMASCENONE |
18 |
BETA-DAMAS CONE |
19 |
BENZALDEHYDE |
20 |
RASPBERRY KETONE |
21 |
GAMMA-OCTALACTONE |
22 |
BETA-DAMAS CONE |
23 |
ACETANISOLE |
24 |
P-ANISYL ALDEHYDE |
25 |
P-METHYL ACETOPHENONE |
26 |
ISOVALERALDEHYDE |
27 |
[0068] In some embodiments, the fragrance material may have a component ratio in the order
of rosemary oil>vanillin>fermented ethyl alcohol>lavandin oil>ethyl vanillin>eucalyptol.
A content ratio of the vanillin and eucalyptol contained in the fragrance material
may be in a range of about 2.5:1 to 3.5:1 (preferably, about 3:1), and a content ratio
of the ethyl vanillin and lavandin oil contained in the fragrance material may be
in a range of about 0.5:1 to 1.5:1 (preferably, about 1:1), but the present invention
is not limited thereto.
[0069] Meanwhile, in a case in which the fragrance carrier ink contains more fragrance material
than necessary, a problem may occur in that a fragrance is spread to other tipping
paper, to which the fragrance should not be applied, in addition to being spread to
the tipping paper of the present invention during a cigarette mass production process,
and a problem may occur in that the tipping paper of the present invention is discolored
while being stored after being produced.
[0070] To address such problems, a weight ratio of the fragrance material with respect to
the total weight of the fragrance carrier ink may be greater than 0% and lower than
or equal to about 3%, and a weight ratio of the carrier material with respect to the
total weight of the fragrance carrier ink may be greater than 0% and lower than or
equal to about 30%. Preferably, the weight ratio of the fragrance material with respect
to the total weight of the fragrance carrier ink may be greater than 0% and lower
than or equal to about 1.5%, and the weight ratio of the carrier material with respect
to the total weight of the fragrance carrier ink may be greater than 0% and lower
than or equal to about 15%. More preferably, the weight ratio of the fragrance material
with respect to the total weight of the fragrance carrier ink may be in a range of
about 0.4% to 1.3%, and the weight ratio of the carrier material with respect to the
total weight of the fragrance carrier ink may be in a range of about 5% to 10%.
[0071] The binder that may be included in the fragrance carrier ink may be an acrylic and
starch-based polymer that is soluble in ethanol. Since the binder that may be included
in the fragrance carrier ink is included therein, the residual amount of the fragrance
material, which is included in the fragrance carrier, in the tipping paper may be
increased. That is, the fragrance material or fragrance carrier that may be lost over
the storage period of the smoking article after the smoking article is produced may
be better preserved in the tipping paper by the binder.
[0072] Meanwhile, for the binder to also secure the workability of printing while serving
to preserve the fragrance material, an appropriate viscosity is required for the binder.
To this end, the binder may be a polymer material that has a molecular weight in a
range of about 1,000 to 30,000 and a glass transition temperature in a range of about
50 °C to 100 °C. Preferably, the binder may be a polymer material that has a molecular
weight in a range of about 3,000 to 20,000 and a glass transition temperature in a
range of about 60 °C to 90 °C. This is because, when the viscosity of the binder is
too low, the ink may flow down, and when the viscosity of the binder is too high,
the ink may become stiff, which may degrade the workability and performance of the
binder itself.
[0073] Also, as will be described below with reference to Table 4, a fragrance retaining
property tends to increase with an increase in an amount of applied binder, but in
a case in which too much binder is applied, the curl of the tipping paper may be increased,
and there may be difficulty in producing the smoking article.
[0074] To address such difficulty, a weight ratio of the binder with respect to the total
weight of the fragrance carrier ink may be greater than 0% and lower than or equal
to about 15%. Preferably, the weight ratio of the binder with respect to the total
weight of the fragrance carrier ink may be in a range of about 5% to 10%.
[0075] The microcapsules that may be included in the fragrance carrier ink may each include
polyvinyl alcohol (PVA), a fragrance, and a cross-linking agent. Specifically, a core
of each microcapsule may be an ethanol-based fragrance, a shell of each microcapsule
may be PVA, and sodium sulfate (Na
2SO
4) may be used as the cross-linking agent. The fragrance may be an ethanol-based fragrance.
The microcapsules may each have a diameter in a range of about 1.5 µm to 5.0 µm.
[0076] In some embodiments, the fragrance may also have the same composition as the fragrance
material included in the fragrance carrier material.
[0077] In some embodiments, a content ratio of the PVA and the fragrance in each microcapsule
may be in a range of about 1:3 to 1:7. Preferably, the content ratio of the PVA and
the fragrance in each microcapsule may be about 1:5. For example, each microcapsule
may be produced by stirring about 5% PVA, about 25% fragrance, and about 1.5% cross-linking
agent.
[0078] In some embodiments, a weight ratio of the microcapsules with respect to the total
weight of the fragrance carrier ink may be greater than 0% and lower than or equal
to about 25%, and preferably, may be in a range of about 5% to 20%. In this way, it
is possible to address a problem in that a fragrance is excessively expressed before
smoking due to breakage of the microcapsules and/or a problem in that the surface
of the tipping paper is contaminated by the shells of the microcapsules and roughens,
which may occur when the fragrance carrier ink contains an excessive amount of microcapsules.
[0079] In some embodiments, the weight ratio of the binder with respect to the total weight
of the fragrance carrier ink may be in a range of about 5% to 10%, and the weight
ratio of the microcapsules with respect to the total weight of the fragrance carrier
ink may be in a range of about 5% to 20%. Preferably, the weight ratios of the binder
and the microcapsules with respect to the total weight of the fragrance carrier ink
may each be about 5%.
[0080] The microcapsules may be produced by: i) stirring an ethanol-based fragrance and
PVA at room temperature for about 15 minutes to 45 minutes; ii) adding a cross-linking
agent, at a level of about 30% with respect to the PVA, to a solution in which the
ethanol-based fragrance and the PVA are stirred and stirring a solution obtained thereby
at a temperature which is higher than or equal to about 60 °C and lower than or equal
to about 100 °C for about 5 hours to 10 hours; and iii) cooling the solution in which
the ethanol-based fragrance, the PVA, and the cross-linking agent are stirred, at
room temperature for about 30 minutes to 2 hours.
[0081] Hereinafter, the configurations of the present invention and the advantageous effects
according thereto will be described in more detail using examples and comparative
examples. However, the examples are merely for describing the present invention in
more detail, and the scope of the present invention is not limited by the examples.
Comparative Example 1
[0082] An OPV printing process was performed on a tipping paper material produced for testing
of examples, which had undergone and completed a process of printing a first design
and a process of printing a second design different from the first design, and then
a drying process was performed at a drying speed of about 150 m/min.
Comparative Example 2
[0083] A printing process using an ink including a water-soluble fragrance carrier including
a fragrance material was performed on the tipping paper material of Comparative Example
1, which had undergone and completed the OPV printing process and the drying process,
and then a drying process was performed at a drying speed of about 150 m/min. In the
water-soluble fragrance carrier printing process, a fragrance carrier ink, for which
water was used as a solvent and which contained about 1.25% fragrance material(s)
of Table 1 above, about 9% β-cyclodextrin, and about 5% water-soluble binder, was
used.
Comparative Example 3
[0084] A drying process was performed at a drying speed of about 10 m/min on the tipping
paper material of Comparative Example 2, which had undergone and completed the printing
process using the ink including the water-soluble fragrance carrier.
Example 1
[0085] The fragrance carrier printing process of the present invention was performed on
the tipping paper material of Comparative Example 1, which had undergone and completed
the OPV printing process and the drying process, and then a drying process was performed
at a drying speed of about 150 m/min. In the fragrance carrier printing process, a
fragrance carrier ink, for which ethanol was used as a solvent and which contained
about 1.25% fragrance material(s) of Table 1 above, about 9% 2-hydroxypropyl-β-cyclodextrin,
and about 5% binder, was used.
Experimental Example 1: Evaluation of drying and curl characteristics of tipping paper
after ink is printed on tipping paper
[0086] In order to confirm drying and curl characteristics of the tipping paper produced
according to the examples of the present invention after an ink is printed on the
tipping paper, the surface energy of ink applied to printing, the extent to which
the fragrance carrier is dissolved, the extent to which the ink is dried, and a curl
of the tipping paper were analyzed for each of the example and comparative examples,
and results thereof are shown in Table 2 below.
[Table 2]
Classification |
Details |
Drying speed (m/min) |
Surface energy of ink (mN/m) |
Dissolution of fragrance carrier |
Drying of ink |
Curl of tipping paper (mm) |
Example 1 |
OPV +fragrance carrier(1.25%) +binder(5.0%) |
150 |
29.2 |
Good |
Good |
1.0 |
Comparative Example 1 |
OPV only |
150 |
21.2 |
Not added |
Good |
0.7 |
Comparative Example 2 |
OPV+water-soluble fragrance carrier(1.25%) +water-soluble binder(5.0%) |
150 |
72.4 |
Good |
Not completely dried |
- |
Comparative Example 3 |
OPV+ water-soluble fragrance carrier(1.25%) + water-soluble binder (5.0%) |
10 |
72.4 |
Good |
Good |
12.0 |
[0087] As shown in Table 2, the extent to which the fragrance carrier is dissolved was good
in all of Example 1 and Comparative Examples 2 and 3. However, in the tipping paper
of Comparative Example 2 on which the water-soluble fragrance carrier was printed,
it was confirmed that the ink was not completely dried after the printing and drying
processes. This is judged to be due to the surface energy of the ink having a high
value of 72.4 mN/m, which is due to using water as the solvent for the ink when printing
the water-soluble fragrance carrier. In Comparative Example 3 in which the drying
speed was lowered to 10 m/min to completely dry the ink for which water was used as
the solvent, the extent to which the ink is dried was good, but a curl of the tipping
paper occurred at a high numerical value of about 12 mm. Thus, the tipping paper of
Comparative Example 3 was found to be not applicable to a cigarette mass production
process.
[0088] On the other hand, regarding the tipping paper of Example 1, in which ethanol was
used as the solvent for the ink and to which the fragrance carrier and binder were
applied, the extent to which the ink is dried was good and a curl of the tipping paper
did not show a statistically significant difference from the numerical value thereof
according to Comparative Example 1 in which the fragrance carrier printing process
was not applied. Thus, it was confirmed that there was no problem at all in applying
the tipping paper of Example 1 to a cigarette mass production process.
Example 2
[0089] A tipping paper was removed from a cigarette produced for testing of examples, and
a material portion and a filter portion were separated. A smoking article was produced
by combining the separated material portion and filter portion using a tipping paper
having a porosity of about 100 CU that was produced by applying the OPV process and
the fragrance carrier printing process using an ethanol-based fragrance carrier ink
containing 0.4% fragrance material.
Example 3
[0090] A smoking article was produced in the same way as in Example 2 except that the ethanol-based
fragrance carrier ink contained 0.7% fragrance material.
Example 4
[0091] A smoking article was produced in the same way as in Example 2 except that the ethanol-based
fragrance carrier ink contained 1.25% fragrance material.
Example 5
[0092] A smoking article was produced in the same way as in Example 2 except that the ethanol-based
fragrance carrier ink contained 1.5% fragrance material.
Comparative Example 4
[0093] A smoking article was produced in the same way as in Example 2 except that, unlike
in Examples 2 to 5, the fragrance printing process was performed by stirring the fragrance
material in the ink without including the fragrance material in a carrier.
Experimental Example 2: Evaluation of index materials of tipping paper for reducing
tobacco smell on fingers - no binder applied
[0094] In order to measure the effect of reducing a tobacco smell on fingers when smoking
cigarettes according to the examples and the comparative example, changes in contents
of vanillin and ethyl vanillin in smoke collected from the tipping paper were analyzed,
and results thereof are shown in Table 3 below.
[0095] All of the smoking articles according to the examples and the comparative example
were smoked two weeks after being produced. Smoking conditions were set as follows:
a puff volume of 55 ml, a puff time of 2 seconds, a puff cycle of 20 seconds, and
a puff number of 12. The analysis of contents of vanillin and ethyl vanillin was performed
by gas chromatography (GC) analysis of smoke collected by wrapping a Cambridge filter
pad (CFP) around the tipping paper 130.
[Table 3]
Classification |
Details |
Vanillin (mg/g) |
Ethyl vanillin (mg/g) |
Remarks |
Example 2 |
OPV+fragrance carrier(0.40%) |
0.012 |
0.002 |
- |
Example 3 |
OPV+fragrance carrier(0.70%) |
0.021 |
0.005 |
- |
Example 4 |
OPV+fragrance carrier(1.25%) |
0.040 |
0.012 |
- |
Example 5 |
OPV+fragrance carrier(1. 5%) |
0.065 |
0.029 |
- |
Comparative Example 4 |
OPV+fragrance material(1.25%) |
0.028 |
0.007 |
Some of the scent was lost during cigarette production |
[0096] As shown in Table 3, vanillin and ethyl vanillin components were detected in all
of the examples. In this way, it was confirmed that the detected vanillin and ethyl
vanillin components may serve to mask a tobacco smell on fingers by coming in contact
with the fingers. Meanwhile, from the results of analysis of Example 4 and Comparative
Example 4, it can be confirmed that, while the contents of the fragrance material
in the ink were the same, more vanillin and ethyl vanillin components were detected
in the case in which fragrance carrier printing was performed by including the fragrance
material in the carrier material (Example 4) as compared to the case in which fragrance
printing was performed without including the fragrance material in a carrier (Comparative
Example 4).
[0097] Further, from the results of analysis of Examples 2 to 5, it was found that the amounts
of vanillin and ethyl vanillin components expressed in the tipping paper tended to
increase with an increase in the content of the fragrance material in the fragrance
carrier ink. However, in the case of Example 5 in which the content of the fragrance
material included in a carrier was 1.5%, a problem occurred in that a fragrance spread
to other tipping paper, to which the fragrance should not be applied, in addition
to being spread to the tipping paper of the present invention during a cigarette mass
production process. It was found that, in Example 4 in which the content of the fragrance
material included in a carrier was 1.25%, the effect of reducing a tobacco smell on
fingers caused by smoking was excellent and the tipping paper could be applied to
cigarette mass production without any problems.
Example 6
[0098] A smoking article was produced in the same way as in Example 4 described above with
reference to Table 3, except that the ethanol-based fragrance carrier ink contained
1.0% binder. A polymer material having a molecular weight of about 18,000 and a glass
transition temperature of about 80 °C was used as the binder.
Example 7
[0099] A smoking article was produced in the same way as in Example 6 except that the ethanol-based
fragrance carrier ink contained 3.0% binder.
Example 8
[0100] A smoking article was produced in the same way as in Example 6 except that the ethanol-based
fragrance carrier ink contained 5.0% binder.
Example 9
[0101] A smoking article was produced in the same way as in Example 6 except that the ethanol-based
fragrance carrier ink contained 15.0% binder.
Experimental Example 3: Evaluation of index materials of tipping paper for reducing
tobacco smell on fingers - binder applied
[0102] In order to measure the effect of reducing a tobacco smell on fingers when smoking
cigarettes according to the examples and the comparative example, changes in contents
of vanillin and ethyl vanillin in smoke collected from the tipping paper were analyzed,
and results thereof are shown in Table 4 below.
[Table 4]
Classification |
Details |
Two weeks after production |
Two months after production |
Remarks |
Vanillin (mg/g) |
Ethyl vanillin (mg/g) |
Vanillin (mg/g) |
Ethyl vanillin (mg/g) |
Comparative Example 4 |
OPV+fragrance material(1.25%)+binder(0.0%) |
0.028 |
0.007 |
0.019 |
0.003 |
- |
Example 4 |
OPV+fragrance carrier(1.25%)+binder(0.0%) |
0.040 |
0.012 |
0.029 |
0.009 |
- |
Example 6 |
OPV+fragrance carrier(1.25%)+binder(1.0%) |
0.062 |
0.023 |
0.043 |
0.014 |
- |
Example 7 |
OPV+fragrance carrier(1.25%)+binder(3.0%) |
0.121 |
0.045 |
0.090 |
0.040 |
- |
Example 8 |
OPV+fragrance carrier(1.25%)+binder(5.0%) |
0.200 |
0.070 |
0.146 |
0.056 |
- |
Example 9 |
OPV+fragrance carrier(1.25%)+binder(15.0%) |
0.260 |
0.116 |
0.235 |
0.098 |
Excessive curl occurred in tipping paper |
[0103] As shown in Table 4, it was found that the amounts of vanillin and ethyl vanillin
components expressed in the tipping paper tended to increase with an increase in the
content of the binder in the fragrance carrier ink. However, in the case of Example
9 in which the content of the binder was 15%, there was a problem in that an excessive
curl occurred in the tipping paper. It was found that, when the content of the binder
was in a range of 5% to 10%, the effect of reducing a tobacco smell on fingers caused
by smoking was excellent and the tipping paper curl issue could also be solved.
Example 10
[0104] A smoking article was produced in the same way as in Example 8 described above with
reference to Table 4, except that the ethanol-based fragrance carrier ink contained
5.0% microcapsules. As the microcapsules, microcapsules each having a diameter in
a range of about 1.5 µm to 5.0 µm were used, wherein a core of each microcapsule was
an ethanol-based fragrance, a shell of each microcapsule was made of PVA, and Na
2SO
4 was used as a cross-linking agent.
Example 11
[0105] A smoking article was produced in the same way as in Example 10 except that the ethanol-based
fragrance carrier ink contained 10.0% binder.
Example 12
[0106] A smoking article was produced in the same way as in Example 11 except that the ethanol-based
fragrance carrier ink contained 15.0% microcapsules.
Example 13
[0107] A smoking article was produced in the same way as in Example 12 except that the ethanol-based
fragrance carrier ink contained 25.0% microcapsules.
Experimental Example 4: Evaluation of index materials of tipping paper for reducing
tobacco smell on fingers - binder applied, microcapsules applied
[0108] In order to measure the effect of reducing a tobacco smell on fingers when smoking
cigarettes according to the examples and the comparative example, changes in contents
of vanillin and ethyl vanillin in smoke collected from the tipping paper were analyzed,
and results thereof are shown in Table 5 below.
[Table 5]
Classification |
Details |
Vanillin (mg/g) |
Ethyl vanillin (mg/g) |
Remarks |
Example 8 |
OPV+fragrance carrier(1.25%) +binder(5.0%) |
0.200 |
0.070 |
|
Example 10 |
OPV+fragrance carrier(1.25%)+binder(5.0%)+ capsules(5.0%) |
0.243 |
0.130 |
|
Example 11 |
OPV+fragrance carrier(1.25%)+binder(10.0%)+ capsules(5.0%) |
0.357 |
0.231 |
|
Example 12 |
OPV+fragrance carrier(1.25%)+binder(10.0%)+ capsules(15.0%) |
0.541 |
0.385 |
|
Example 13 |
OPV+fragrance carrier(1.25%)+binder(10.0%)+ capsules(25. 0%) |
0.878 |
0.522 |
Intensity of external scent increased excessively/ Surface of tipping paper was contaminated |
[0109] As shown in Table 5, it was found that the amounts of vanillin and ethyl vanillin
components expressed in the tipping paper tended to increase with an increase in the
content of the microcapsules in the fragrance carrier ink. However, in the case of
Example 13 in which the content of the microcapsules was 25%, the intensity of an
external scent generated while a cigarette was stored before being smoked increased
excessively, and the surface of the tipping paper was contaminated due to breakage
of the microcapsules. It was found that, when the content of the microcapsules is
in a range of 10% to 20%, the effect of reducing a tobacco smell on fingers caused
by smoking was excellent and the problems relating to the intensity of the external
scent and contamination of the surface of the tipping paper could be solved.
Experimental Example 5: Evaluation of workability of printing on tipping paper/workability
of subsequent process
[0110] In order to confirm workability of printing on the tipping paper produced according
to the examples of the present invention and workability of a subsequent process for
producing cigarettes after the printing, physical characteristics of the tipping paper
were analyzed, and results thereof are shown in Table 6 below. In Experimental Example
5, the analysis of physical characteristics of tipping paper was carried out on tipping
paper before the tipping paper was assembled to each of the smoking articles according
to Example 8 and Examples 10 to 12.
[Table 6]
Classification |
Details |
Workabil ity of printing |
Adhesion between front and rear surfaces of tipping paper |
Slip property |
Curl of tipping paper (mm) |
Comparative Example 1 |
OPV only |
Good |
None |
Good |
0.7 |
Comparative Example 4 |
OPV+fragrance material(1.25%) |
Good |
Good |
Good |
1.0 |
Example 8 |
OPV+fragrance carrier(1.25%)+binder(5.0%) |
Good |
None |
Good |
1.0 |
Example 10 |
OPV+fragrance carrier(1.25%)+binder(5.0%)+ capsules(5.0%) |
Good |
None |
Good |
3.0 |
Example 11 |
OPV+fragrance carrier(1.25%)+binder(10.0%)+ capsules(5.0%) |
Good |
None |
Good |
5.0 |
Example 12 |
OPV+fragrance carrier(1.25%)+binder(10.0%)+ capsules(15.0%) |
Good |
None |
Good |
4.0 |
[0111] As shown in Table 6, in all of Example 8 and Examples 10 to 12, the workability of
printing on the tipping paper was good, a problem of adhesion between front and rear
surfaces of the tipping paper, which may occur when the paper is rolled while the
ink is not completely dried and the ink on the front surface is spread to the rear
surface, did not occur, the slip property was good without a problem in that the surface
of the tipping paper was too slippery or rough, and a curl of the tipping paper was
also within an appropriate numerical value range. Accordingly, it was confirmed that,
within the scope of the examples, there was no problem in terms of the workability
of fragrance carrier printing using the fragrance carrier ink including the fragrance
material, binder, and the microcapsules.
Example 14
[0112] A tipping paper was removed from a cigarette produced for testing of examples, and
a material portion and a filter portion were separated. A smoking article was produced
by combining the separated material portion and filter portion using a tipping paper
having a porosity of about 100 CU that was produced by applying the OPV process and
the fragrance carrier printing process using an ethanol-based fragrance carrier ink
containing 1.25% fragrance material. Here, the fragrance material contained 5% vanillin
and 10% ethyl vanillin.
Example 15
[0113] A smoking article was produced in the same way as in Example 14 except that the fragrance
material contained 10% vanillin.
Example 16
[0114] A smoking article was produced in the same way as in Example 14 except that the fragrance
material contained 20% vanillin.
Example 17
[0115] A smoking article was produced in the same way as in Example 14 except that the fragrance
material contained 30% vanillin.
Example 18
[0116] A smoking article was produced in the same way as in Example 14 except that the fragrance
material contained 40% vanillin.
Comparative Example 5
[0117] A smoking article was produced in the same way as in Example 15 except that, unlike
in Examples 13 to 17, the fragrance printing process was performed by stirring the
fragrance material in the ink without including the fragrance material in a carrier.
Experimental Example 6: Evaluation of color stability according to changes in content
of vanillin in fragrance material
[0118] For evaluation of color stability of the tipping paper according to changes in content
of vanillin in the fragrance material, the degrees of color change of cigarettes immediately
after production thereof and cigarettes two months after production thereof were quantified
by color difference (ΔE) in the CIELAB color space, and results thereof are shown
in Table 7. The cigarettes were stored for two months under conditions of a temperature
of about 40 °C and a relative humidity of about 60%.
[Table 7]
Classification |
Details |
Color change (ΔE) |
Comparative Example 1 |
OPV only |
0.43 |
Comparative Example 5 |
OPV+fragrance material(1.25%) [vanillin(20.0%), ethyl vanillin(10.0%)] |
1.26 |
Example 14 |
OPV+fragrance carrier(1.25%) [vanillin(5.0%), ethyl vanillin(10.0%)] |
0.57 |
Example 15 |
OPV+fragrance carrier(1.25%) [vanillin(10.0%), ethyl vanillin(10.0%)] |
0.71 |
Example 16 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(10.0%)] |
0.82 |
Example 17 |
OPV+fragrance carrier(1.25%) [vanillin(30.0%), ethyl vanillin(10.0%)] |
1.70 |
Example 18 |
OPV+fragrance carrier(1.25%) [vanillin(40.0%), ethyl vanillin(10.0%)] |
2.20 |
[0119] From the results of analysis of Examples 14 to 18, it was found that the degree of
discoloration of the tipping paper increased with an increase in the content of vanillin
in the fragrance material (while the content of ethyl vanillin was fixed at 10%).
Particularly, it can be seen that the degree of discoloration increased sharply to
a numerical value at which the discoloration could even be observed by visual inspection
in Examples 17 and 18 in which the content of vanillin was higher than or equal to
30%, and the degree of discoloration of the tipping paper was insignificant in Examples
14 to 16 in which the content of vanillin was in a range of 5% to 20%. Also, from
the results of analysis of Example 16 and Comparative Example 5, it was confirmed
that, while the contents of vanillin and ethyl vanillin in the fragrance material
were the same, the degree of discoloration was lower in the case in which fragrance
carrier printing was performed by including the fragrance material in the carrier
material (Example 16) as compared to the case in which fragrance printing was performed
without including the fragrance material in a carrier (Comparative Example 5).
Example 19
[0120] A smoking article was produced in the same way as in Example 14 described above with
reference to Table 7, except that the fragrance material contained 20% vanillin and
5% ethyl vanillin.
Example 20
[0121] A smoking article was produced in the same way as in Example 19 except that the fragrance
material contained 20% ethyl vanillin.
Example 21
[0122] A smoking article was produced in the same way as in Example 19 except that the fragrance
material contained 30% ethyl vanillin.
Example 22
[0123] A smoking article was produced in the same way as in Example 19 except that the fragrance
material contained 40% ethyl vanillin.
Experimental Example 7: Evaluation of color stability according to changes in content
of ethyl vanillin in fragrance material
[0124] For evaluation of color stability of the tipping paper according to changes in content
of ethyl vanillin in the fragrance material, the degrees of color change of cigarettes
immediately after production thereof and cigarettes two months after production thereof
were quantified by color difference (ΔE) in the CIELAB color space, and results thereof
are shown in Table 8. The cigarettes were stored for two months under conditions of
a temperature of about 40 °C and a relative humidity of about 60%.
[Table 8]
Classification |
Details |
Color change (ΔE) |
Comparative Example 1 |
OPV only |
0.43 |
Comparative Example 5 |
OPV+fragrance material(1.25%) [vanillin(20.0%), ethyl vanillin(10.0%)] |
1.26 |
Example 19 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(5.0%)] |
0.61 |
Example 16 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(10.0%)] |
0.82 |
Example 20 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(20.0%)] |
1.68 |
Example 21 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(30.0%)] |
1.92 |
Example 22 |
OPV+fragrance carrier(1.25%) [vanillin(20.0%), ethyl vanillin(40.0%)] |
2.17 |
[0125] As in Experimental Example 6, from the results of analysis of Examples 19 to 22,
it was found that the degree of discoloration of the tipping paper increased with
an increase in the content of ethyl vanillin in the fragrance material (while the
content of vanillin was fixed at 20%). Particularly, it can be seen that the degree
of discoloration increased sharply to a numerical value at which the discoloration
could even be observed by visual inspection in Examples 20 to 22 in which the content
of ethyl vanillin was higher than or equal to 20%, and the degree of discoloration
of the tipping paper was insignificant in Examples 16 and 19 in which the content
of ethyl vanillin was in a range of 5% to 10%.
Experimental Example 8: Smoking sensory evaluation using tipping paper to which fragrance
carrier is applied
[0126] In order to confirm sensory characteristics of the tipping paper to which the fragrance
carrier is applied according to the present invention, sensory evaluation was performed
with respect to external scent intensity, tobacco taste intensity, intensity of the
tobacco smell on fingers after smoking, intensity of the scent remaining on the fingers
after smoking, and satisfaction with the scent remaining on the fingers, for the smoking
articles according to Example 1, Comparative Example 1, and Comparative Example 4.
[0127] The sensory evaluation was performed by a panel of twenty evaluators using the smoking
articles according to Example 1, Comparative Example 1, and Comparative Example 4,
based on a scale of 8 points.
[0128] FIG. 2 shows results of smoking sensory evaluation relating to smoking articles stored
at room temperature for two weeks after being produced according to Example 1, Comparative
Example 1, and Comparative Example 4. FIG. 3 shows results of smoking sensory evaluation
relating to smoking articles stored at room temperature for two months after being
produced according to Example 1, Comparative Example 1, and Comparative Example 4.
[0129] Referring to FIGS. 2 and 3, it can be seen that external scent intensity (that is,
the scent intensity before the cigarette is rubbed by fingers of a smoker or saliva
is delivered from the smoker's mouth to the cigarette) increased noticeably in the
cigarette according to Comparative Example 4 to which fragrance printing was applied
as compared to the cigarette according to Comparative Example 1 to which fragrance
printing was not applied. On the other hand, it can be seen that, in the cigarette
according to Example 1 to which fragrance carrier printing was applied, the external
scent intensity somewhat increased as compared to the cigarette according to Comparative
Example 1, but the external scent intensity had a significantly lower numerical value
as compared to Comparative Example 4.
[0130] It can be seen that the intensity of the scent remaining on the fingers after smoking
increased significantly in Comparative Example 4 and Example 1 as compared to Comparative
Example 1 and increased slightly in Example 1 as compared to Comparative Example 4.
It can be seen that the intensity of the tobacco smell on the fingers after smoking
reduced in Comparative Example 4 and Example 1 as compared to Comparative Example
1 and reduced in Example 1 as compared to Comparative Example 4.
[0131] Considering together the fact that the external scent intensity had a lower numerical
value in Example 1 as compared to Comparative Example 4 and the fact that the intensity
of the scent remaining on the fingers after smoking had a higher numerical value in
Example 1 as compared to Comparative Example 4, it can be confirmed that the amount
of fragrance expressed before smoking relatively decreased and the amount of fragrance
expressed during smoking relatively increased in the case in which the fragrance material
was included in a carrier and printed (Example 1) as compared to the case in which
the fragrance material was printed without being included in a carrier (Comparative
Example 4).
[0132] Example 1, Comparative Example 1, and Comparative Example 4 showed no significant
difference in terms of tobacco taste intensity. Thus, it is predicted that the taste
of tobacco smoke would not be degraded due to applying fragrance printing.
Experimental Example 9: Smoking sensory evaluation according to whether microcapsules
are additionally applied
[0133] In order to confirm changes in sensory characteristics according to whether the microcapsules
are added, sensory evaluation was performed with respect to external scent intensity,
tobacco taste intensity, intensity of the tobacco smell on fingers after smoking,
intensity of the scent remaining on the fingers after smoking, and satisfaction with
the scent remaining on the fingers, for the smoking articles according to Examples
10 to 12 and Comparative Example 1. The sensory evaluation was performed by a panel
of twenty evaluators using the smoking articles according to Example 10 to 12 and
Comparative Example 1, based on a scale of 8 points.
[0134] FIG. 4 shows results of smoking sensory evaluation relating to smoking articles two
weeks after production thereof according to Examples 10 to 12 and Comparative Example
1.
[0135] Referring to FIG. 4, the external scent intensity, intensity of the scent remaining
on the fingers after smoking, and satisfaction with the scent remaining on the fingers
tended to increase and the intensity of the tobacco smell on the fingers after smoking
tended to decrease with an increase in the content of the binder and/or microcapsules
in the fragrance carrier ink.
[0136] It was confirmed that, in all of Examples 10 to 12, an increase in the intensity
of the scent remaining on the fingers after smoking as compared to Comparative Example
1 was larger than an increase in external scent intensity as compared to Comparative
Example 1. Thus, it can be seen that, in all of Examples 10 to 12, the fragrance was
substantially not expressed during storage of the cigarettes and then was substantially
expressed due to the smoking behavior of the smoker.
[0137] Those of ordinary skill in the art related to the present examples should understand
that the present invention may be implemented in modified forms within the scope not
departing from essential characteristics of the above description. Therefore, the
methods disclosed herein should be considered as illustrative rather than limiting.
The scope of the present invention is defined by the claims below rather than by the
above description, and all differences within the scope equivalent to the claims should
be interpreted as falling within the scope of the present invention.