JP2022510742A - Chip paper to which finger tobacco odor reduction technology is applied, smoking articles containing it, and manufacturing method of chip paper - Google Patents

Abstract

According to one embodiment of the present invention, a fragrance carrier composed of a fragrance substance and a carrier substance encapsulating the fragrance substance is contained, and the fragrance substance encapsulated in the carrier substance reacts with water, saliva or rubbing. The carrier substance provides a chip paper for smoking articles, which is a substance that is expressed on the outside of the chip paper for smoking articles and is soluble in ethanol.

Description

The present invention relates to a chip paper for smoking articles, and more specifically, a chip paper to which a technique capable of reducing the odor of cigarettes permeating a smoker's finger is applied, a smoking article containing the same, and a method for producing the chip paper. Regarding.

Although various attempts have been made to mask the odor of cigarettes generated by smoking with fragrance substances, tipping paper for smoking articles, which the smoker's finger directly touches while smoking, is manufactured. Since the process always involves a printing and drying process, a smoking article chip paper and the like that can mask the smell of cigarettes on the fingers while eliminating the discoloration issue, drying process issue and curl generation issue of the chip paper. The current situation is that it is necessary to develop smoking goods including.

The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to provide a chip paper capable of reducing the odor of tobacco in a finger and a smoking article containing the same. There is something in it.

The technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned above are clearly understood by ordinary engineers in the technical field to which the present invention belongs from the following description. Can be done.

In order to solve such a problem, according to a part of the embodiment of the present invention, at least a part of the area of the smoking substance part and the smoking article are combined so that the smoking substance part and the filter part for the smoking article are combined. Chip paper for smoking articles that wraps the filter unit, and contains a fragrance carrier composed of a fragrance substance and a carrier substance that encloses the fragrance substance, and the fragrance substance encapsulated in the carrier substance is water, saliva, or Provided is a chip paper for smoking articles, which is expressed on the outside of the chip paper for smoking articles in response to rubbing, and the carrier substance is a substance which is soluble in ethanol.

The carrier substance can be 2-hydroxypropyl-beta-cyclodextrin (2-hydroxypropyl-β-cycdextrin), and the fragrance substance can be at least one of vanillin and ethylvanillin. Can be a fragrance substance containing.

The weight ratio of vanillin to the total weight of the fragrance substance can be 15% to 25%, and the weight ratio of ethylvanillin can be 5% to 15%.

The scent carrier may be included in chip paper for smoking articles through a scent carrier printing step using a scent carrier ink consisting of ethanol, a perfume substance and a carrier substance.

The weight ratio of the perfume substance to the total weight of the fragrance carrier ink may be greater than 0% and 1.5% or less, and the weight ratio of the carrier substance may be greater than 0% and less than 15%.

In some embodiments, the scent carrier ink further comprises a binder, and the weight ratio of the binder to the total weight of the scent carrier ink can be greater than 0% and less than or equal to 15%. The binder can be a polymer substance that is soluble in ethanol, has a molecular weight of 3,000 to 20,000, and has a glass transition temperature of 60 ° C. to 90 ° C.

In some embodiments, the scent carrier ink further comprises microcapsules, and the weight ratio of the microcapsules to the total weight of the scent carrier ink can be greater than 0% and less than 25%.

The weight ratio of the binder to the total weight of the scent carrier ink can be 5% to 10%, and the weight ratio of the microcapsules can be 5% to 20%. The microcapsules have a diameter of 1.5 um to 5.0 um, the microcapsules contain polyvinyl alcohol (PVA), fragrances and cross-linking agents, and the content ratio of polyvinyl alcohol to fragrances in the microcapsules is 1. : 3 to 1: 7.

The scent carrier printing step can be performed after the OPV (Overprint varnish) step is applied to the chip paper for smoking articles.

According to a partial embodiment of the present invention, a smoking substance part wrapped in a smoking substance wrapper, a filter part whose upstream end is coupled to the smoking substance part and wrapped in a filter wrapper, and a smoking substance part and a filter part. A fragrance carrier composed of a fragrance substance and a carrier substance encapsulating the fragrance substance, which comprises at least a part of a smoking substance portion and a chip paper wrapping the filter portion so as to be bound to the chip paper. The fragrance substance encapsulated in the carrier substance is expressed on the outside of the chip paper in response to water, saliva or rubbing, and the carrier substance is provided as a smoking article which is a substance soluble in ethanol.

According to a partial embodiment of the present invention, a fragrance substance and a fragrance that wraps at least a part of the area of the smoking substance part and the filter part for the smoking article so that the smoking substance part and the filter part for the smoking article are combined. A method for producing chip paper for smoking articles to which a carrier substance that encloses a substance is applied, in which the carrier substance is added to ethanol and stirred, and the fragrance substance is added to a solution in which the carrier substance is added to ethanol. A step of adding a binder to a solution of ethanol with a carrier substance and a fragrance substance and stirring, and a step of adding a carrier substance, a fragrance substance and a binder to ethanol are used as a fragrance carrier ink. A printing step of printing on a chip paper for smoking articles and a method for producing the chip paper for smoking articles including.

In some embodiments, the microcapsule core is an ethanol-based fragrance and the shell is an additional step of adding and stirring the microcapsules to the scent carrier ink prior to the printing step. , Polyvinyl alcohol, microcapsules are at the stage of stirring ethanol-based fragrance and polyvinyl alcohol at room temperature, and at a temperature of 60 ° C or higher and 100 ° C or lower by adding a cross-linking agent to the solution in which the ethanol-based fragrance and polyvinyl alcohol are stirred. It can include a step of stirring with, and a step of cooling the solution in which the ethanol-based fragrance, polyvinyl alcohol and the cross-linking agent are stirred.

According to the embodiment of the present invention, by encapsulating the fragrance substance in the scent carrier substance and then applying the scent carrier printing step on the chip paper, the odor of the finger due to smoking is effectively reduced, and at the same time, the printing step. It is possible to solve the problem of curl issue of chip paper and surface contamination of chip paper by applying.

Further, by printing the fragrance substance as a carrier, it is possible to reduce the scent expression level during simple storage of the smoking article and at the same time increase the scent expression level during smoking.

Furthermore, by using ethanol as the ink solvent used in the scent carrier printing process, the same level of ink drying and curl generation of chip paper can be ensured as compared with the case where the scent carrier printing process is not applied. The printing workability of the fragrance carrier can also be ensured.

It is a figure which shows the schematic structure of the smoking article to which the chip paper by a part of Example of this invention was applied. It is a smoking sensory evaluation result for a smoking article 2 weeks after being manufactured by Example 1, Comparative Example 1 and Comparative Example 4. It is a smoking sensory evaluation result for a smoking article 2 months after being manufactured by Example 1, Comparative Example 1 and Comparative Example 4. It is a smoking sensory evaluation result for a smoking article 2 weeks after being manufactured by Examples 10 to 12 and Comparative Example 1.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the invention, and how to achieve them, will become clear with reference to the examples described in detail below with the accompanying drawings. However, the present invention is not limited to the examples posted below, and can be embodied in various forms different from each other. It is provided to fully inform a person having ordinary knowledge in the technical field to which the invention belongs, and the present invention is only defined by the claims. The same reference numeral in the specification as a whole refers to the same component.

Unless otherwise defined, all terms used herein (including technical and scientific terms) are meant to be commonly understood by anyone with ordinary knowledge in the art to which the invention belongs. Can be used. Also, terms defined in commonly used dictionaries are not ideally or over-parsed unless explicitly specifically defined.

In addition, the singular type in the present specification may also include a plurality of types unless otherwise specified in the text. As used herein, "comprises" and / or "comprising" are the components, steps, actions and / or elements referred to in one or more other components, steps, actions. And / or do not rule out the presence or addition of elements.

Terms including ordinal numbers, such as "first" or "second" as used herein, can be used to describe a variety of components, but the components should be limited by term. is not it. The term is used solely for the purpose of distinguishing one component from the other.

In general, the term "smoking article" means an item capable of generating an aerosol, such as a cigarette (cigarette), a cigarette, or the like. Smoking articles can include aerosol-generating substances or aerosol-forming substrates. In addition, smoking articles can include solid substances based on tobacco raw materials such as plate-shaped leaf tobacco, chopped tobacco, and reconstituted tobacco. Smoking substances can include volatile compounds.

Further, in the general specification, "upstream" or "upstream direction" means a direction away from the mouth of a user who smokes the smoking article 100, and "downstream" or "downstream direction" means a user who smokes the smoking article 100. It means the direction of approaching from the mouth of. For example, in the smoking article 100 shown in FIG. 1, the smoking substance unit 120 is located upstream or upstream of the smoking article filter 110.

Further, in the present specification, the case where the smoking article 100 is a combustion type cigarette has been described as an example, but the present invention is not limited to this, and the smoking article 100 is an aerosol generator (not shown) such as an electronic cigarette device. Of course, it may be a heated cigarette or the like used together with it.

FIG. 1 is a diagram showing a schematic configuration of a smoking article to which a chip paper according to a part of an embodiment of the present invention is applied.

Referring to FIG. 1, the smoking article 100 is a chip paper that binds the filter unit 110 wrapped in the filter wrapper 110a, the smoking substance unit 120 wrapped in the smoking substance wrapper 120a, the filter unit 110, and the smoking substance unit 120. 130 and can be included.

The filter unit 110 is arranged downstream of the smoking substance unit 120 and may be a region through which the aerosol substance generated in the smoking substance unit 120 passes immediately before the user inhales.

The filter unit 110 can be made of various materials, for example, the filter unit 110 can be a cellulose acetate filter.

In some embodiments, the filter unit 110 may be a cellulose acetate filter in which the perfume substance is not perfume-treated, but the filter unit 110 is not limited to this, and the filter unit 110 is a TJNS (transfer jet) in which the perfume substance is perfume-treated. It can be a nozzle system) filter.

In some embodiments, the filter portion 110 may be a tube-shaped structure containing a hollow inside. Further, the filter unit 110 can also be manufactured by inserting a structure such as a film or a tube made of the same or different material into the inside (for example, hollow).

The hardness of the filter unit 110 can be adjusted by adjusting the content of the plasticizer during the production of the filter unit 110. As the plasticizer, triacetin may be applied, and triacetin may be contained in an amount of 5 to 15% based on the total weight of the filter portion 110, but the type and content of the plasticizer are not limited to this and are necessary. Can be adjusted appropriately according to.

The filter unit 110 of this embodiment is shown as a monofilter composed of a single filter, but the present invention is not limited thereto. For example, it is natural that the filter unit 110 may be provided with a dual filter or a triple filter provided with two acetate filters in order to increase the filter efficiency.

Further, although not shown, a capsule (not shown) may be contained inside the filter unit 110. The capsule may have a structure in which a content liquid containing a fragrance is wrapped with a coating, for example, the capsule may have a spherical or cylindrical shape. The diameter of the capsule can be, but is not limited to, approximately 2.6 mm to 3.5 mm, and the diameter of the capsule can vary depending on the specifications of the smoking article 100.

The material forming the capsule coating can be a natural material, starch and / or gelling agent. For example, in the case of a coating of a natural material, it may be composed of agar, pectin, sodium alginate, glycerin and the like. As the gelling agent, gellan gum or gelatin may be used. Further, a gelling aid can be further used as a material for forming a capsule film. Here, as the gelling aid, for example, calcium chloride can be used. Further, a plasticizer can be further used as a material for forming a capsule film. Here, as the plasticizer, glycerin and / or sorbitol can be used. Further, a colorant can be further used as a material for forming a capsule film.

In some examples, as the solvent for the fragrance contained in the content liquid of the capsule, for example, medium chain fatty acid triglyceride (MCTG) can be used. The content liquid may also contain other additives such as dyes, emulsifiers and thickeners.

The contents of the capsule may contain, but are not limited to, fragrances such as menthol and essential oils of plants.

The filter unit 110 may be packaged by the filter wrapper 110a. In some embodiments, the filter wrapper 110a may be made of oil resistant rolling paper. The filter wrapper 110a is made of oil-resistant wrapping paper so that the capsule content liquid released to the outside of the capsule does not pass through the filter wrapper 110a when the capsule contained in the filter portion 110 is crushed by a smoker. Can be done. In some embodiments, the inner surface of the filter wrapper 110a may further include aluminum foil.

The above-mentioned filter unit 110 is arranged downstream of the smoking substance unit 120 and serves as a filter through which the aerosol substance generated in the smoking substance unit 120 passes immediately before the user inhales.

The smoking substance unit 120 may contain an aerosol-generating substance. For example, the smoking substance section 120 can include a tobacco strand. The smoking material section 120 can have an elongated rod form, the length, circumference and diameter of which can vary.

In some embodiments, the aerosol generator can include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol.

In some embodiments, the smoking substance section 120 may contain other additives such as flavoring agents, wetting agents and / or acetate compounds. For example, flavoring agents include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, coloha, cascarilla, byakudan, bergamot, geranium, honey essence, rose oil, vanilla, lemon. It can include oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, cinnamon, salvia, spearmint, ginger, coendro or coffee and the like. Further, the wetting agent may contain glycerin, propylene glycol or the like.

In some examples, the smoking substance section 120 is obtained after crushing the tobacco raw material, mixing the solvent and various additives to produce a slurry form, and then drying to form a sheet. It can contain reconstituted tobacco material formed into fragmentary forms such as rods by processing the sheet. For example, the smoking material section 120 comprises a plurality of tobacco material strands, one such strand having a length of approximately 10 mm to 14 mm (eg, 12 mm) and a width of approximately 0.8 mm to 1.2 mm (eg,). , 1 mm) and thickness can be approximately 0.08 mm to 0.12 mm (eg, 0.1 mm), but is not limited thereto.

By including a plurality of strand substances processed into a wide tobacco sheet form in the smoking substance section 120, the density of the tobacco substance filled in the smoking substance section 120 increases, and the amount of aerosol generated increases accordingly. It is possible to improve the smoking characteristics of the smoking substance unit 120.

The smoking substance section 120 may be packaged by the smoking substance wrapper 120a.

In some embodiments, the smoking material wrapper 120a may contain a filler, which may increase the opacity or impart porosity of the smoking material wrapper 120a, and may be rolled. The smoothness and ash caking property of the cigarette paper can be improved, and the whiteness of the cigarette paper can be increased. As the filler, substances such as calcium carbonate, titanium dioxide, and magnesium oxide can be used, but the filler is not limited thereto.

Further, although not shown, the smoking substance wrapper 120a may have a double-rolled paper structure. Specifically, the smoking substance wrapper 120a is an inner wrapper (not shown) that is in contact with the smoking substance section 120 and wraps the smoking substance section 120, and an outer wrapper that is in contact with the inner wrapper and wraps the outside of the inner wrapper. Wrapper) and can be included.

The filter unit 110 packaged by the filter wrapper 110a and the smoking substance unit 120 packaged by the smoking substance wrapper 120a can be combined and packaged by the chip paper 130. That is, the chip paper 130 is surrounded by at least a part of the smoking substance wrapper 120a (for example, a part of the downstream area) and the outer shell of the filter wrapper 110a. In other words, at least a portion of the smoking material section 120 and the filter section 110 may be further packaged and physically bonded by the chip paper 130.

In some embodiments, the chip paper 130 may be made of non-porous roll paper that is not oil resistant, but is not limited thereto.

The chip paper 130 may be coated with a sweetener such as sucralose or citric acid. Further, a predetermined substance may be added to the chip paper 130. Silicon may be an example of a given substance, but is not limited thereto. For example, silicon has properties such as heat resistance that does not change with temperature, oxidation resistance that is not oxidized, resistance to various chemicals, water repellency to water, and electrical insulation. However, even if it is not silicon, any substance having the above-mentioned properties can be applied or coated on the chip paper 130 without limitation.

The chip paper 130 can also prevent the phenomenon that the filter unit 110 burns. For example, when the smoking substance unit 120 burns to a portion adjacent to the filter unit 110, it may burn to the filter unit 110. Even in such a case, since the chip paper 130 contains a nonflammable substance, the phenomenon that the filter unit 110 burns can be prevented.

In addition, at the time of manufacturing the smoking substance wrapper 120a, in order to reduce the odor of the cigarette due to the smoke generated by smoking, as described above, the smoking substance wrapper 120a may be impregnated with a filler by various compositions and methods, or double-wrapped paper. There have been various attempts such as forming a structure and applying a water-soluble scent carrier that encloses a fragrance. However, apart from the sidestream smoke reduction effect of the various attempts mentioned above, the part that the smoker's finger directly touches during smoking is not the smoking substance wrapper 120a but the chip paper 130, so that the smell of cigarettes on the finger is There is a need for a finger tobacco odor reduction technique that can be applied directly to the chip paper 130 instead of the smoking substance wrapper 120a.

From this, the chip paper 130 of the present invention contains a scent carrier composed of a fragrance substance for masking the odor of tobacco and a carrier substance for inclusion of the fragrance substance. The scent carrier may be included in chip paper for smoking articles through a scent carrier printing step using a scent carrier ink consisting of ethanol, a perfume substance and a carrier substance.

The scent carrier ink can be produced by sequentially adding and stirring a carrier substance, a fragrance substance and a binder to ethanol. Specifically, the fragrance carrier ink is prepared by i) adding the carrier substance to ethanol and stirring for about 30 to 60 minutes; ii) adding the fragrance substance to the ethanol solution to which the carrier substance is added for about 15 minutes to about 15 minutes. It can be produced through a step of stirring for 45 minutes; and iii) a step of adding a binder to an ethanol solution containing carrier and fragrance substances and stirring for approximately 15 to 45 minutes.

When the scent carrier ink contains microcapsules described later, the step of adding the microcapsules to the ethanol solution containing the iv) carrier substance, fragrance substance and binder after the iii) step and stirring for about 15 to 45 minutes is performed. It can also be included further.

The scent carrier printing step may be performed by mixing the scent carrier with the ink used in the OPV (Over print varnish) step performed on the chip paper, but preferably, the scent carrier amount transmitted to the chip paper is used. In order to maximize it, it may be performed in a printing process separate from the OPV process after the OPV process.

In some embodiments, the scent carrier ink may further comprise a binder and / or microcapsules, the details of which will be described below with respect to the binder and microcapsules.

The carrier substance in the present invention is characterized in that it is a substance that is not soluble in water, isopropyl alcohol, or the like, but is soluble in ethanol. For example, the carrier material can be 2-hydroxypropyl-beta-cyclodextrin (2-hydroxypropyl-β-cyclodextrin).

This is a method of applying a water-soluble scent carrier substance (for example, β-cyclodextrin) that encloses a fragrance substance to the above-mentioned smoking substance wrapper 120a on a chip paper 130 that always involves a printing and drying step. This is because it is practically impossible to apply it as it is. Specifically, when the water-soluble fragrance carrier method is applied to the chip paper 130, water must be used as the ink solvent, and in this case, the surface energy of the ink becomes as high as about 70 mN / m to 75 mN / m. As a result, the drying process after printing of the chip paper 130 becomes difficult, and problems such as contamination of the chip paper and ink peeling phenomenon due to weakening of the binding force of the printed ink and the chip paper may occur. Furthermore, when the drying temperature is increased or the drying time is increased due to the drying of the ink having such a high surface energy, the curl of the chip paper is increased. Unlike this, when printing the fragrance substance on the chip paper without applying the carrier method, the fragrance substance smokes during the storage period of the chip paper due to the characteristics of the chip paper placed on the outermost part of the smoking article. It may disappear to the outside of the article, or the chip paper may be discolored due to storage conditions such as light / humidity.

Unlike this, as in the present invention, the carrier material applied to the chip paper is encapsulated with a hydrophobic fragrance substance, and at the same time, it is soluble in ethanol, such as 2-hydroxypropyl-beta-cyclodextrin. When applied to a polymer substance, ethanol can be used as an ink solvent, and an ink having a surface energy of about 20 mN / m to 50 mN / m can be used. The printing and drying processes can be applied, and not only the manufacturing workability of the smoking article but also the storage stability can be ensured because there is no discoloration issue.

The fragrance substance encapsulated in the carrier substance is expressed on the outside of the chip paper 130 (that is, the outside of the smoking article 100) in response to moisture, saliva (saliva) or rubbing, and the expressed fragrance substance is By being transferred to the smoker's finger holding the chip paper portion, it is possible to perform a masking role of the smell of cigarettes on the finger.

Furthermore, the perfume substance is a carrier before water or saliva (eg, saliva) is transferred from the smoker to the chip paper or friction (eg, the smoker grips or rubs the chip paper) is transmitted. Since it does not appear while being encapsulated in the substance, it can solve the problem that the scent disappears over the storage period or the problem that the smoker simply stores the smoking substance and an unnecessary scent is generated. You will be able to do it.

The perfume substance encapsulated in the carrier substance can include at least one or more of vanillin and ethylvanillin.

As will be described later with reference to Tables 7 and 8, the total weight ratio of vanillin and ethylvanillin in consideration of the discoloration issue of the chip paper is 0% more than 50% or less with respect to the total weight of the fragrance substance. obtain. Preferably, the weight ratio of vanillin to the total weight of the fragrance material can be greater than 0% and less than 30%, and the weight ratio of ethylvanillin can be greater than 0% and less than 20%. More preferably, the weight ratio of vanillin to the total weight of the fragrance material may be approximately 15% to 25%, and the weight ratio of ethylvanillin may be approximately 5% to 15%.

The fragrance substance can contain various components in addition to vanillin and ethylvanillin, and Table 1 shows the components of the fragrance substance confirmed to maximize the odor reducing effect of the above-mentioned finger tobacco.

In some examples, the perfume material may have a composition ratio of rosemary oil (ROSEMARY OIL), vanillin, fermented liquor, lavandine oil (LAVANDIN OIL), ethylvanillin, eucalyptol (EUCALYPTOL) in that order. The content ratio of vanillin and eucallipton contained in the fragrance substance is approximately 2.5: 1 to 3.5: 1 (preferably about 3: 1), and the content ratio of ethylvanillin and lavandin oil contained in the fragrance substance is approximately 2.5: 1 to 3.5: 1. The content ratio can be, but is not limited to, approximately 0.5: 1 to 1.5: 1 (preferably about 1: 1).

If the fragrance carrier ink contains an unnecessarily large amount of fragrance substance, there is a problem that the fragrance is transferred not only to the chip paper of the present invention but also to other chip papers to which the fragrance should not be applied during the mass production process. However, there may be a problem that discoloration occurs during storage after the chip paper is manufactured.

In order to solve such a problem, the weight ratio of the fragrance substance to the total weight of the fragrance carrier ink is approximately 0% or more and 3% or less, and the weight ratio of the carrier substance is approximately 0% or more and 30% or less. obtain. Preferably, the weight ratio of the fragrance material to the total weight of the fragrance carrier ink may be approximately 0% over 1.5% and the weight ratio of the carrier material may be approximately 0% over 15%. More preferably, the weight ratio of the fragrance substance to the total weight of the scented carrier ink may be approximately 0.4% to 1.3%, and the weight ratio of the carrier material may be approximately 5% to 10%.

The binder that can be contained in the scent carrier ink can be an acrylic and starch-based polymer that is soluble in ethanol. By including the binder that can be contained in the scent carrier ink, the residual amount of the chip paper of the fragrance substance encapsulated in the scent carrier can be increased. That is, the perfume substance or scent carrier that can disappear during the storage period after the production of the smoking article through the binder can be better stored in the chip paper.

In addition, in order for the binder to play the role of preserving the above-mentioned fragrance substance and at the same time to secure the printing workability, an appropriate viscosity of the binder is required, and for this reason, the binder has a molecular weight of about 1,000 or more. It can be a polymeric material that is 30,000 and has a glass transition temperature of approximately 50 ° C to 100 ° C. Preferably, the binder can be a polymeric substance having a molecular weight of approximately 3,000 to 20,000 and a glass transition temperature of approximately 60 ° C to 90 ° C. This is because if the viscosity of the binder is too low, the ink will flow down, and if the viscosity is too high, the ink will become hard and workability will be reduced, and at the same time, the performance peculiar to the binder may be reduced.

Further, as will be described later with reference to Table 4, the fragrance preserving power tends to increase as the binder application amount increases, but when the binder application amount becomes too large, the curl of the chip paper increases. , May cause difficulties in manufacturing smoking goods.

To eliminate such difficulties, the weight ratio of the binder to the total weight of the scent carrier ink can be approximately 0% greater than and less than 15%. Preferably, the weight ratio of the binder to the total weight of the scent carrier ink can be approximately 5% to 10%.

Microcapsules that can be included in the scent carrier ink can include polyvinyl alcohol (PVA), fragrances and cross-linking agents. Specifically, the core of the microcapsules is an ethanol-based fragrance, the shell is polyvinyl alcohol, and sodium sulfate (Na ₂ SO ₄ ) can be used as the cross-linking agent. The fragrance can be an ethanol-based fragrance. Microcapsules can have a diameter of approximately 1.5 um to 5.0 um.

In some embodiments, the fragrance may have the same composition as the fragrance material encapsulated in the scent carrier material described above.

In some examples, the content ratio of polyvinyl alcohol in the microcapsules to the fragrance can be approximately 1: 3 to 1: 7. Preferably, the content ratio of polyvinyl alcohol in the microcapsules to the fragrance can be about 1: 5. For example, microcapsules can be produced by stirring about 5% polyvinyl alcohol, about 25% fragrance and about 1.5% crosslinker.

In some embodiments, the weight ratio of the microcapsules to the total weight of the scent carrier ink can be approximately 0% greater than 25% and less than 25%, preferably approximately 5% to 20%. Through this, it is possible to solve the problem of excessive scent before smoking due to the tearing of the microcapsules and / or the problem that the surface of the chip paper is contaminated by the capsule shell and becomes rough, which may occur due to the excessive content of the microcapsules. You will be able to do it.

In some embodiments, the weight ratio of the binder to the total weight of the scent carrier ink can be from about 5% to 10% and the weight ratio of the microcapsules can be from about 5% to 20%. Preferably, the weight ratio of each of the binder and the microcapsules to the total weight of the scent carrier ink can be approximately 5%.

The microcapsules are: i) Stir the ethanol-based fragrance and polyvinyl alcohol at room temperature for approximately 15 to 45 minutes; ii) Add a cross-linking agent to the stirred solution of the ethanol-based fragrance and polyvinyl alcohol at about 30% compared to polyvinyl alcohol. Step of adding at a level and stirring at a temperature of about 60 ° C. or higher and 100 ° C. or lower for about 5 to 10 hours; iii) A solution in which ethanol-based fragrance, polyvinyl alcohol and a cross-linking agent are stirred is approximately 30 at room temperature. It can be manufactured through a step of cooling for minutes to 2 hours.

Hereinafter, the configuration of the present invention and the effects thereof will be described in more detail through Examples and Comparative Examples. However, the present embodiment is for more specific explanation of the present invention, and the scope of the present invention is not limited to these examples.

[Comparative Example 1]
After proceeding with the OPV printing process on the chip paper material produced for testing for the examples and having completed the primary design printing and the secondary design printing process of a design different from the primary design, about 15 said 0 m / min. The drying process proceeded at the drying rate of.

[Comparative Example 2]
After proceeding with the printing process using the ink containing the water-soluble fragrance carrier in which the fragrance substance is encapsulated in the chip paper material of Comparative Example 1 in which the OPV printing process and the drying process are completed, the drying process is performed at a drying rate of about 150 m / min. The process proceeded. Water-soluble fragrance carrier In the printing step, water is used as a solvent, and the fragrance carrier ink containing about 1.25% of the fragrance substance in Table 1, about 9% of β-cyclodextrin, and about 5% of the water-soluble binder is used. Used.

[Comparative Example 3]
The drying step was carried out at a drying rate of about 10 m / min on the chip paper material of Comparative Example 2 in which the printing step using the ink containing the water-soluble fragrance carrier was completed.

[Example 1]
After the fragrance carrier printing step of the present invention was carried out on the chip paper material of Comparative Example 1 in which the OPV printing step and the drying step were completed, the drying step was carried out at a drying rate of about 150 m / min. In the fragrance carrier printing step, ethanol is used as a solvent, and the fragrance carrier ink containing about 1.25% of the fragrance substance in Table 1, about 9% of 2-hydroxypolypl-β-cyclodextrin, and about 5% of the binder is used. Used.

[Experimental Example 1: Evaluation of drying and curling characteristics after printing chip paper]
After printing the chip paper produced according to the examples of the present invention, the surface energy of the ink applied to the printing, the degree of dissolution of the fragrance carrier, and the ink for each example and comparative example in order to confirm the drying and curl characteristics. The degree of dryness and the curl of the chip paper were analyzed, and the results are shown in Table 2.

As shown in Table 2, the degree of dissolution of the scent carrier was shown to be good in all of Examples 1, Comparative Examples 2 and 3. However, the chip paper in Comparative Example 2 to which printing of the water-soluble fragrance carrier was applied confirmed that the ink was incompletely dried after the printing and drying steps, which was the ink solvent when printing the water-soluble fragrance carrier. It is judged that this is due to the fact that water is used and the surface energy of the ink has a high value of 72.4 mN / m. In Comparative Example 3 in which the drying speed was reduced to 10 m / min for complete drying of the ink using water as a solvent, a good degree of ink drying was shown, but a high numerical value of about 12 mm was generated in the chip paper. Then, it was confirmed that the chip paper in Comparative Example 3 cannot be applied to the mass production process of cigarettes.

Unlike this, the chip paper of Example 1 in which ethanol was used as the ink solvent and the scent carrier and the binder were applied had a good degree of ink drying, and at the same time, the curl of the chip paper was also a scent carrier printing step. Since no significant difference is shown as compared with the numerical value of Comparative Example 1 to which is not applied, it was confirmed that the chip paper in Example 1 is perfectly reasonable for application to the mass production process of rolled tobacco.

[Example 2]
The cigarette chip paper produced for the test for the examples was removed to separate the medium and filter sections. Chip paper with a porosity of about 100 CU produced by applying a scent carrier printing step using an OPV step and an ethanol-based scent carrier ink containing 0.4% of fragrance substances to separate the medium section and the filter section. Manufactured a smoking article combined with.

[Example 3]
Smoking articles were produced in the same manner as in Example 2, except that the ethanol-based scent carrier ink contained 0.7% of the fragrance substance.

[Example 4]
Smoking articles were produced in the same manner as in Example 2, except that the ethanol-based scent carrier ink contained 1.25% of the fragrance substance.

[Example 5]
Smoking articles were produced in the same manner as in Example 2, except that the ethanol-based scent carrier ink contained 1.5% of the fragrance substance.

[Comparative Example 4]
Unlike Examples 2 to 5, smoking articles were produced by the same method as in Example 2 except that the fragrance substance was not made into a carrier and the scent printing step was performed by stirring with ink.

[Experimental Example 2: Evaluation of index substance for reducing finger odor of chip paper-Binder not applied]
In order to measure the effect of reducing finger odor when smoking cigarettes according to Examples and Comparative Examples, changes in vanillin and ethylvanillin contents of smoke collected with chip paper were analyzed and shown in Table 3. ..

The smoking articles according to the examples and comparative examples were smoked two weeks after production, and the smoking conditions were set to a puff volume of 55 ml, a puff time of 2 seconds, a puff cycle of 20 seconds, and a puff frequency of 12 times. , Vanillin and ethylvanillin contents were analyzed by wrapping CFP (Cambridge filter pad) in chip paper 130 and collecting smoke by GC (Gas chromatography) analysis.

As shown in Table 3, vanillin and ethylvanillin components are detected in all examples, through which the detected vanillin and enylvanillin components can serve to contact the finger and mask the odor. It was confirmed. Looking at the analysis results in Example 4 and Comparative Example 4, even if the content of the fragrance substance in the ink is the same, the fragrance printing was performed without using the fragrance substance as a carrier (Comparative Example 4). It can be confirmed that more vanillin and ethylvanillin components were detected when the fragrance substance was encapsulated in the carrier substance and the fragrance carrier was printed (Example 4).

Furthermore, looking at the analysis results in Examples 2 to 5, it was shown that the amounts of vanillin and ethylvanillin components expressed in the chip paper tended to increase as the content of the fragrance substance in the fragrance carrier ink increased. However, in the case of Example 5 in which the content of the fragrance substance as a carrier is 1.5%, the scent is transferred not only to the chip paper of the present invention but also to other chip papers to which the scent is not applied during the mass production process. In Example 4 in which the content of the fragrance substance as a carrier is 1.25%, the effect of reducing the odor of the finger due to smoking is excellent, and at the same time, the cigarette is within the mass production range of the cigarette. It was confirmed.

[Example 6]
Smoking articles were produced in the same manner as in Example 4 described with reference to Table 3, except that the ethanol-based fragrance carrier ink contained 1.0% of the binder. As the binder, a polymer material having a molecular weight of about 18,000 and a glass transition temperature of about 80 ° C. was used.

[Example 7]
Smoking articles were produced in the same manner as in Example 6 except that the ethanol-based scent carrier ink contained 3.0% of the binder.

[Example 8]
Smoking articles were produced in the same manner as in Example 6 except that the ethanol-based scent carrier ink contained 5.0% of the binder.

[Example 9]
Smoking articles were produced in the same manner as in Example 6 except that the ethanol-based scent carrier ink contained 15.0% of the binder.

[Experimental Example 3: Evaluation of index substance for reducing finger odor of chip paper-application of binder]
In order to measure the effect of reducing finger odor when smoking cigarettes according to Examples and Comparative Examples, changes in vanillin and ethylvanillin contents of smoke collected with chip paper were analyzed and shown in Table 4. ..

As shown in Table 4, it was shown that the amounts of vanillin and ethylvanillin components expressed in the chip paper tended to increase as the content of the binder in the scent carrier ink increased. However, in the case of Example 9 in which the binder content is 15%, there is a problem that the curl of the chip paper is excessively increased, and when the binder content is 5% to 10%, the finger odor due to smoking is reduced. It was confirmed that the curl issue of the chip paper can be eliminated at the same time as the effect is excellent.

[Example 10]
Smoking articles were produced in the same manner as in Example 8 described with reference to Table 4, except that the ethanol-based scent carrier ink contained 5.0% of microcapsules. As the microcapsules, microcapsules having a diameter of about 1.5 um to 5.0 um were used, in which the core was an ethanol-based fragrance, the shell was composed of polyvinyl alcohol, and sodium sulfate was used as a cross-linking agent.

[Example 11]
Smoking articles were produced in the same manner as in Example 10, except that the ethanol-based scent carrier ink contained 10.0% of the binder.

[Example 12]
Smoking articles were produced in the same manner as in Example 11 except that the ethanol-based scent carrier ink contained 15.0% microcapsules.

[Example 13]
Smoking articles were produced in the same manner as in Example 12, except that the ethanol-based scent carrier ink contained 25.0% microcapsules.

[Experimental Example 4: Evaluation of index substance for reducing finger odor of chip paper-application of binder and application of microcapsules]
In order to measure the effect of reducing finger odor when smoking cigarettes according to Examples and Comparative Examples, changes in vanillin and ethylvanillin contents of smoke collected with chip paper were analyzed and shown in Table 5. ..

As shown in Table 5, it was shown that the amounts of vanillin and ethylvanillin components expressed in the chip paper tended to increase as the content of the microcapsules in the scent carrier ink increased. However, in the case of Example 13 in which the microcapsule content is 25%, the external scent intensity generated in the storage state of the cigarette before smoking is excessively increased, and the surface of the chip paper is contaminated due to the tearing of the microcapsules. It was confirmed that when the content of the microcapsules is 10% to 20%, the effect of reducing the odor of the fingers due to smoking is excellent, and at the same time, the problems of the external scent strength and the surface contamination of the chip paper can be solved.

[Experimental Example 5: Evaluation of printing workability / subsequent process workability of chip paper]
In order to confirm the print workability of the chip paper produced by the embodiment of the present invention and the workability characteristics of the subsequent steps for producing cigarettes after printing, the physical characteristics of the chip paper are analyzed and the results are shown in the table. Shown in 6. For the analysis of the physical properties of the chip paper in Experimental Example 5, the chip paper before being assembled into the smoking articles of Examples 8 and 10 to 12 was evaluated.

As shown in Table 6, the printing workability of the chip paper was good in all of Examples 8 and 10 to 12, and the paper was rolled and transferred to the back surface while the ink was insufficiently dried. There is no problem of adhesion between the front and back surfaces of the chip paper, the surface of the chip paper is slippery and slips badly, there is no problem that the surface becomes very rough, the slip property is good, and the tip paper curls. However, it can be seen that it is within the range of appropriate numerical values. Along with this, it was confirmed that there is no problem in the printing workability of the scent carrier using the scent carrier ink containing the fragrance substance, the binder and the microcapsules within the range of the examples.

[Example 14]
The cigarette chip paper produced for the test for the examples was removed to separate the medium and filter sections. Chip paper with a porosity of about 100 CU produced by applying a scent carrier printing step using an OPV step and an ethanol-based scent carrier ink containing 1.25% of fragrance substances to separate the medium and filter sections. Manufactured a smoking article combined with. Here, the fragrance substance contained 5% vanillin and 10% ethylvanillin.

[Example 15]
Smoking articles were produced in the same manner as in Example 14, except that the perfume material contained 10% vanillin.

[Example 16]
Smoking articles were produced in the same manner as in Example 14, except that the perfume material contained 20% vanillin.

[Example 17]
Smoking articles were produced in the same manner as in Example 14, except that the perfume material contained 30% vanillin.

[Example 18]
Smoking articles were produced in the same manner as in Example 14, except that the perfume material contained 40% vanillin.

[Comparative Example 5]
Unlike Examples 13 to 17, smoking articles were produced by the same method as in Example 15 except that the fragrance substance was not made into a carrier and the scent printing step was performed by stirring with ink.

[Experimental Example 6: Evaluation of color stability by changing the vanillin content in the fragrance substance]
In order to evaluate the color stability of the chip paper due to the change in the vanillin content in the fragrance substance, the degree of color change between the cigarette immediately after production and the cigarette two months after production is quantified by the color difference ΔE in the CIELAB color space. It is shown in Table 7. Cigarettes were stored for 2 months at a temperature of about 40 ° C. and a relative humidity of about 60%.

Looking at the analysis results in Examples 14 to 18, it can be confirmed that the degree of discoloration of the chip paper increases as the vanillin content in the fragrance substance increases (the content of ethylvanillin is fixed at 10%). can. In particular, in Examples 17 and 18 in which the vanillin content was 30% or more, it was found that the degree of discoloration increased sharply with the numerical value that the discoloration could be observed with the naked eye, and the vanillin content was 5% to 20%. In Examples 14 to 16, it can be seen that the degree of discoloration of the chip paper is extremely slight. Further, looking at the analysis results in Example 16 and Comparative Example 5, even if the vanillin and ethylvanillin contents in the fragrance substance are the same, the fragrance printing is performed without using the fragrance substance as a carrier (Comparative Example 5). Further, it was confirmed that the degree of discoloration was small when the fragrance substance was encapsulated in the carrier substance and the fragrance carrier was printed (Example 16).

[Example 19]
Smoking articles were produced in the same manner as in Example 14 described with reference to Table 7, except that the perfume material contained 20% vanillin and 5% ethylvanillin.

[Example 20]
Smoking articles were produced in the same manner as in Example 19 except that the perfume material contained 20% ethylvanillin.

[Example 21]
Smoking articles were produced in the same manner as in Example 19, except that the perfume material contained 30% ethylvanillin.

[Example 22]
Smoking articles were produced in the same manner as in Example 19, except that the perfume material contained 40% ethylvanillin.

[Experimental Example 7: Evaluation of color stability by changing the ethylvanillin content in a fragrance substance]
In order to evaluate the color stability of the chip paper due to the change in the ethylvanillin content in the fragrance substance, the degree of color change between the cigarette immediately after production and the cigarette two months after production is quantified by the color difference in the CIELAB color space. It is shown in Table 8. Cigarettes were stored for 2 months at a temperature of about 40 ° C. and a relative humidity of about 60%.

Similar to Experimental Example 6, the analysis results of Examples 19 to 22 show that the degree of discoloration of the chip paper increases as the ethylvanillin content in the fragrance substance increases (the vanillin content is fixed at 20%). You can confirm that you want to. In particular, in Examples 20 to 22 in which the ethylvanillin content was 20% or more, it was found that the degree of discoloration increased sharply with the numerical value that the discoloration could be observed with the naked eye, and the ethylvanillin content was 5% to 10%. It can be seen that in certain Examples 16 and 19, the degree of discoloration of the chip paper is negligible.

[Experimental Example 8: Smoking sensory evaluation of scent carrier-applied chip paper]
In order to confirm the sensory characteristics of the scent carrier-applied chip paper of the present invention, the external scent intensity, the taste intensity of the cigarette, and the odor intensity of the cigarette of the finger after smoking according to Example 1, Comparative Example 1 and Comparative Example 4 , Sensory evaluation was performed on the scent intensity remaining on the finger after smoking and the scent satisfaction remaining on the finger.

The evaluation of the sensory characteristics was carried out on the evaluation panels of 20 people using the smoking articles of Example 1, Comparative Example 1 and Comparative Example 4, and the total score was based on a total of 8 points.

FIG. 2 shows smoking sensory evaluation results for smoking articles manufactured by Example 1, Comparative Example 1 and Comparative Example 4, and then stored at room temperature for 2 weeks, and FIG. 3 shows Example 1, Comparative Example 1 and FIG. It is a smoking sensory evaluation result for a smoking article manufactured by Comparative Example 4 and then stored at room temperature for 2 months.

Referring to FIGS. 2 and 3, the external scent intensity (that is, the tip paper by the smoker's finger) in the cigarette of Comparative Example 4 to which the scent printing is applied is compared with that of the cigarette of Comparative Example 1 to which the scent printing is not applied. It can be confirmed that there is no rubbing and the scent intensity in the state before the saliva is transmitted from the smoker's mouth) is significantly increased. Unlike this, in the cigarette of Example 1 to which the scent carrier printing was applied, the external aroma intensity was slightly increased as compared with the cigarette of Comparative Example 1, but when compared with Comparative Example 4, it was exceptionally high. It can be seen that it has a low value of external scent intensity.

It can be confirmed that the fragrance intensity remaining on the finger after smoking was greatly increased in Comparative Example 4 and Example 1 as compared with Comparative Example 1, and that Example 1 was slightly increased as compared with Comparative Example 4. It can be confirmed that the odor intensity of the finger cigarette after smoking was reduced in Comparative Example 4 and Example 1 as compared with Comparative Example 1, and that Example 1 was reduced as compared with Comparative Example 4.

The external scent intensity was lower in Example 1 than in Comparative Example 4, and the scent intensity remaining on the finger after smoking was higher in Example 1 than in Comparative Example 4. When both points are taken into consideration, the amount of scent developed before smoking is relatively reduced compared to the case where the fragrance substance is made into a carrier and printed (Example 1) and the case where the carrier is not applied (Comparative Example 4). It can be confirmed that the scent expression level of the scent is relatively large.

Since the taste intensity of tobacco does not show a large difference in all of Example 1, Comparative Example 1 and Comparative Example 4, it is expected that the application of aroma printing does not cause a decrease in taste.

[Experimental example 9: Smoking sensory evaluation with or without additional application of microcapsules]
In order to confirm the change in the sensory characteristics depending on the presence or absence of the additional application of microcapsules, the external scent intensity of the smoking article, the taste intensity of the cigarette, the odor intensity of the finger after smoking, and the post-smoking according to Examples 10 to 12 and Comparative Example 1. A sensory evaluation was performed on the scent intensity remaining on the finger and the scent satisfaction remaining on the finger. The evaluation of the sensory characteristics was carried out using the smoking articles of Examples 10 to 12 and Comparative Example 1 on an evaluation panel of 20 people, and a total of 8 points was used as a standard.

FIG. 4 shows smoking sensory evaluation results for smoking articles 2 weeks after being produced by Examples 10 to 12 and Comparative Example 1.

Referring to FIG. 4, as the content of the binder and / or microcapsules in the scent carrier ink increases, the external scent intensity, the scent intensity remaining on the finger after smoking and the scent satisfaction remaining on the finger generally increase, and smoking. The odor intensity of the cigarettes on the latter fingers tended to decrease.

In all of Examples 10 to 12, it was possible to confirm that the increase value of the scent intensity remaining on the finger after smoking compared to Comparative Example 1 was larger than the increase value of the external scent intensity compared with Comparative Example 1. It can be seen that, in all of Examples 10 to 12, the scent is not substantially developed when the cigarette is stored, but the scent is substantially expressed by the smoking behavior of the smoker.

Having the usual knowledge in the arts associated with this embodiment can be understood that it can be embodied in a modified form without departing from the essential properties described above. Therefore, the disclosed method must be considered from a descriptive point of view, not from a limiting point of view. The scope of the present invention is shown in the claims rather than the above description, and all differences within the equivalent scope should be construed as included in the present invention.

Claims (15)

A chip paper for smoking articles that wraps at least a part of the area of the smoking substance section and the filter section for smoking articles so that the smoking substance section and the filter section for smoking articles are combined.
It contains a scent carrier composed of a fragrance substance and a carrier substance that encloses the fragrance substance.
The fragrance substance encapsulated in the carrier substance is expressed on the outside of the chip paper for smoking articles in response to moisture, saliva or friction.
The carrier substance is a chip paper for smoking articles, which is a substance that dissolves in ethanol. The chip paper for smoking articles according to claim 1, wherein the carrier substance is 2-hydroxypropyl-beta-cyclodextrin (2-hydroxypropyl-β-cyclodextrin). The chip paper for smoking articles according to claim 1 or 2, wherein the fragrance substance contains at least one substance of vanillin and ethyl vanillin. The chip paper for smoking articles according to claim 3, wherein the weight ratio of the vanillin to the total weight of the fragrance substance is 15% to 25%, and the weight ratio of the ethylvanillin is 5% to 15%. The invention according to any one of claims 1 to 4, wherein the scent carrier is contained in the chip paper for smoking articles through a scent carrier printing step using a scent carrier ink composed of the ethanol, the fragrance substance and the carrier substance. Chip paper for smoking goods. The weight ratio of the fragrance substance to the total weight of the fragrance carrier ink is more than 0% and 1.5% or less, and the weight ratio of the carrier substance is more than 0% and 15% or less, according to claim 5. Chip paper for smoking goods. The scent carrier ink further comprises a binder and contains.
The chip paper for smoking articles according to claim 5 or 6, wherein the weight ratio of the binder to the total weight of the fragrance carrier ink is more than 0% and 15% or less. The chip for smoking articles according to claim 7, wherein the binder is a polymer substance that is soluble in ethanol, has a molecular weight of 3,000 to 20,000, and has a glass transition temperature of 60 ° C. to 90 ° C. paper. The scent carrier ink further comprises microcapsules.
The chip paper for smoking articles according to claim 7 or 8, wherein the weight ratio of the microcapsules to the total weight of the fragrance carrier ink is more than 0% and 25% or less. The chip paper for smoking articles according to claim 9, wherein the weight ratio of the binder to the total weight of the fragrance carrier ink is 5% to 10%, and the weight ratio of the microcapsules is 5% to 20%. .. The microcapsules have a diameter of 1.5 um to 5.0 um and have a diameter of 1.5 um to 5.0 um.
The microcapsules contain polyvinyl alcohol (PVA), fragrances and cross-linking agents.
The chip paper for smoking articles according to claim 9 or 10, wherein the content ratio of the polyvinyl alcohol and the fragrance contained in the microcapsules is 1: 3 to 1: 7. The chip paper for smoking articles according to any one of claims 5 to 11, wherein the fragrance carrier printing step is performed after the OPV (Over print vanish) step is applied to the chip paper for smoking articles. The smoking substance part wrapped in a smoking substance wrapper,
The filter part, whose upstream end is bound to the smoking substance part and wrapped in a filter wrapper,
A region of at least a part of the smoking substance portion and a chip paper wrapping the filter portion are included so that the smoking substance portion and the filter portion are bonded.
The chip paper contains a scent carrier composed of a fragrance substance and a carrier substance that encloses the fragrance substance.
The perfume substance encapsulated in the carrier substance is expressed on the outside of the chip paper in response to moisture, saliva or friction, and is expressed on the outside of the chip paper.
The carrier substance is a smoking article which is a substance that dissolves in ethanol. A carrier substance that encloses the fragrance substance and the fragrance substance, which encloses at least a part of the area of the smoking substance portion and the filter portion for the smoking article, is applied so that the smoking substance portion and the filter portion for the smoking article are coupled. It is a method of manufacturing chip paper for smoking articles.
The stage of adding the carrier substance to ethanol and stirring, and
A step of adding the fragrance substance to the solution of the carrier substance added to the ethanol and stirring the mixture.
A step of adding a binder to the solution in which the carrier substance and the fragrance substance are added to the ethanol and stirring the mixture.
A method for producing a chip paper for smoking articles, which comprises a printing step of printing on the chip paper for smoking articles using a solution in which the carrier substance, the fragrance substance and the binder are added to the ethanol as a fragrance carrier ink. .. Prior to the printing step, a step of adding microcapsules to the scent carrier ink and stirring is further included.
The core of the microcapsules is an ethanol-based fragrance, and the shell is polyvinyl alcohol.
The microcapsules are prepared at a temperature of 60 ° C. or higher and 100 ° C. or lower by adding a cross-linking agent to the step of stirring the ethanol-based fragrance and the polyvinyl alcohol at room temperature and the solution in which the ethanol-based fragrance and the polyvinyl alcohol are stirred. The method for producing chip paper for smoking articles according to claim 14, which comprises a step of stirring and a step of cooling the solution in which the ethanol-based fragrance, the polyvinyl alcohol and the cross-linking agent are stirred.

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