Packaging material for nicotine pouches, nicotine pouches containing the same, and method for manufacturing the same.

A cellulose-thermoplastic fiber blend in nicotine pouch packaging materials addresses the issues of airtightness and bursting, ensuring robustness and comfort.

JP2026517968APending Publication Date: 2026-06-02KT&G CO LTD

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
KT&G CO LTD
Filing Date
2024-06-28
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Nicotine pouch packaging materials manufactured by the spunlacing method lack uniform airtightness and are prone to bursting, compromising the integrity and user experience.

Method used

A packaging material composed of 40-80% cellulose fibers and 20-60% thermoplastic fibers, produced through a method involving dispersion formation, dehydration, and drying, ensuring uniform airtightness and strength.

Benefits of technology

The packaging material provides uniform airtightness, excellent tensile strength, and a soft touch, enhancing the user experience by preventing leakage and bursting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a packaging material for nicotine pouches, comprising cellulose fibers and thermoplastic material fibers, wherein the content of the cellulose fibers is 40% to 80% by weight of the total weight of the packaging material for nicotine pouches, and the content of the thermoplastic material fibers is 20% to 60% by weight of the total weight of the packaging material for nicotine pouches.
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Description

[Technical Field]

[0001] The present invention relates to a packaging material for nicotine pouches, a nicotine pouch containing the same, and a method for producing the same. [Background technology]

[0002] Nicotine pouches are a type of smoking product used orally to provide users with the satisfaction of nicotine intake. For example, a nicotine pouch can be used by the user placing the pouch between their upper or lower gums and lip and holding it for a limited time.

[0003] A nicotine pouch consists of a nicotine pouch filler packaged in packaging material. The packaging material for the nicotine pouch fixes the nicotine pouch filler in place, allowing saliva to pass through the filler, and the flavor and nicotine released from the nicotine pouch filler are distributed throughout the user's mouth.

[0004] In this case, the packaging material for the nicotine pouch must not rupture during the manufacturing and distribution process, and while providing a pleasant tactile sensation to the smoker during oral use, it must prevent leakage of the nicotine pouch filler.

[0005] On the other hand, the spunlacing method is primarily used to manufacture nonwoven fabrics for nicotine pouch packaging. The spunlacing method involves forming a sheet-like web of a predetermined thickness using unopened fiber raw materials, entangling the fibers by spraying a stream of water, and then drying the resulting material. However, nicotine pouch packaging manufactured by the spunlacing method has the problem of not having uniform airtightness. [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] The present invention aims to provide a packaging material for nicotine pouches that has uniform airtightness, strength to prevent the nicotine pouch from bursting, and a soft touch.

[0007] However, the problems that the present invention aims to solve are not limited to those described above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0008] According to one embodiment of the present invention, cellulose fibers and Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the packaging material for nicotine pouches. The present invention provides a packaging material for nicotine pouches in which the content of the aforementioned thermoplastic fiber is 20% to 60% by weight of the total weight of the packaging material for nicotine pouches.

[0009] According to one embodiment of the present invention, in a nicotine pouch including a nicotine pouch filler and a nicotine pouch packaging material, The aforementioned packaging material for nicotine pouches is Cellulose fibers, Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the nicotine pouch packaging material. The present invention provides a nicotine pouch in which the content of the thermoplastic material fiber is 20% to 60% by weight relative to the total weight of the packaging material for the nicotine pouch.

[0010] According to one embodiment of the present invention, the steps include (S1) of producing a dispersion of cellulose fibers and thermoplastic material fibers, The steps include transferring the dispersion to a paper machine to form packaging material for nicotine pouches (S2), Dehydration and drying step (S3), Includes, The aforementioned packaging material for nicotine pouches is Cellulose fibers, Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the nicotine pouch packaging material. The present invention provides a method for manufacturing a nicotine pouch, wherein the content of the thermoplastic fiber is 20% to 60% by weight relative to the total weight of the packaging material for the nicotine pouch.

[0011] According to one embodiment of the present invention, the steps include (R1) of manufacturing a nicotine pouch packaging material by a method for manufacturing a nicotine pouch packaging material according to one embodiment of the present invention, The present invention provides a method for manufacturing a nicotine pouch, comprising the step (R2) of sealing the nicotine pouch packaging material. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a nicotine pouch that has uniform airtightness, excellent tensile strength and sealing strength, a soft touch for smokers, and a superior user experience.

[0013] The effects of the present invention are not limited to those described above, but should be understood to encompass all effects that can be inferred from the configuration of the invention as described in the detailed description or claims. [Modes for carrying out the invention]

[0014] The embodiments will be described in detail below with reference to the attached drawings. However, various modifications may be made to the embodiments, and the scope of the patent application will not be limited or restricted by such embodiments. Any modifications, equivalents, or substitutions to the embodiments should be understood to be included within the scope of the patent.

[0015] The terms used in the embodiments are for illustrative purposes only and should not be construed as intended to limit. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as "comprising" or "having" merely specify the presence of the features, numerical values, steps, operations, components, parts, or combinations thereof described in the specification, and do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0016] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by those of ordinary skill in the technical field to which the embodiments pertain. Terms that are commonly used and defined in a dictionary are to be interpreted as having a meaning consistent with the context of the related art, and are not to be interpreted as having an ideal or overly formal meaning unless clearly defined in this application.

[0017] Also, when describing with reference to the accompanying drawings, the same reference numerals are assigned to the same components regardless of the reference signs in the drawings, and redundant descriptions thereof are omitted. When explaining the embodiments, if a detailed description of related known technologies is determined to unnecessarily obscure the gist of the embodiments disclosed in this specification, the detailed description thereof is omitted.

[0018] Also, when describing the components of the embodiments, expressions such as first, second, A, B, (a), (b), etc. can be used. These expressions are only used to distinguish the components from other components, and do not limit the essence, order, or sequence of the components.

[0019] Components included in one embodiment, as well as components with common functions, will be described using the same names in other embodiments. Unless otherwise specified, the descriptions in one embodiment are applicable to other embodiments, and specific descriptions of overlapping areas will be omitted.

[0020] Throughout this specification, when a part is described as "containing" a certain component, this does not mean that it excludes other components, but rather that it may further contain other components.

[0021] According to one embodiment of the present invention, a nicotine pouch packaging material can be provided, comprising cellulose fibers and thermoplastic material fibers, wherein the content of the cellulose fibers is 40-80% of the total weight of the nicotine pouch packaging material, and the content of the thermoplastic material fibers is 20-60% of the total weight of the nicotine pouch packaging material.

[0022] The packaging material for nicotine pouches may be safe for the human body, capable of retaining saliva well, possessing a certain strength to prevent tearing, and also having sealing properties.

[0023] The packaging material for nicotine pouches is either nonwoven or woven, and is preferably nonwoven. Unlike woven fabrics, nonwoven fabrics have intertwined fibers, resulting in no orientation in the longitudinal or transverse direction, and the cut edges are less prone to fraying.

[0024] Preferably, in a nicotine pouch packaging material according to one embodiment of the present invention, the content of cellulose fibers may be 55% to 65% by weight of the total weight of the nicotine pouch packaging material, and the content of thermoplastic material fibers may be 35% to 45% by weight of the total weight of the nicotine pouch packaging material.

[0025] In a packaging material for nicotine pouches according to one embodiment of the present invention, the weight ratio of the cellulose fibers and the thermoplastic material fibers is 4:6 to 8:2, preferably 6:4 to 8:2, and more preferably 6:4.

[0026] Cellulose fibers can increase the airtightness and physical strength of nicotine pouch packaging materials, and the addition of thermoplastic fibers can further seal the nicotine pouch. However, if the cellulose fiber content falls below the numerical range described above and the thermoplastic fiber content exceeds the numerical range described above, the tensile strength of the nicotine pouch packaging material may decrease, making it prone to tearing. On the other hand, if the cellulose fiber content exceeds the numerical range described above and the thermoplastic fiber content falls below the numerical range described above, the sealing strength of the nicotine pouch packaging material may decrease, causing the pouch to easily burst and the filler inside to easily leak out.

[0027] Cellulose fibers can not only increase the tensile strength of nicotine pouch packaging materials, but also improve their feel (softness).

[0028] As an example, the cellulose fiber may include cellulose itself, as well as cellulosic fibers. The cellulosic fibers may include at least one of natural cellulosic fibers or regenerated cellulosic fibers.

[0029] Natural cellulosic fibers may include at least one selected from the group consisting of seed hair fibers, bast fibers, leaf fibers, and wood fibers (pulp). Examples of seed hair fibers include cotton, bombax cotton, and kapok. Examples of bast fibers include hemp, flax, jute, ramie, paper mulberry, and mitsumata. Examples of leaf fibers include Manila hemp and New Zealand hemp. Wood fibers (pulp) may include at least one of softwood pulp or hardwood pulp, depending on the type and characteristics of the wood, such as coniferous tree fibers and hardwood tree fibers.

[0030] Regenerated cellulose fibers may include at least one of regenerated cellulose fibers or semi-synthetic fibers. Examples of regenerated cellulose fibers include viscose, rayon, and fortisan. Examples of semi-synthetic fibers include acetate rayon.

[0031] Rayon can include not only rayon itself, but also rayon-based fibers that compensate for the shortcomings of rayon. Examples of rayon-based fibers include Tencel, Lyocell, and Modal.

[0032] Preferably, in a packaging material for nicotine pouches according to one embodiment of the present invention, the cellulose fibers may include at least one selected from the group consisting of cellulose, viscose, rayon, and pulp.

[0033] In a packaging material for nicotine pouches according to one embodiment of the present invention, if the cellulose fibers are pulp, the pulp may be beaten. "Beaten" can mean immersing the fibers in water and cutting and finely breaking them down by mechanical action. Beaten pulp changes the length and structure of the fibers, making them more susceptible to hydrogen bonding, and thus can impart physical strength to the pouch material.

[0034] By including thermoplastic fiber, the packaging material for nicotine pouches can be heat-sealed.

[0035] In a packaging material for nicotine pouches according to one embodiment of the present invention, The thermoplastic fiber may include at least one selected from the group consisting of nylon, polylactic acid, polyethylene, polypropylene, polyethylene / polypropylene, polyethersulfone, polyethylene terephthalate, and low-melting point polyethylene terephthalate (LMPET).

[0036] Furthermore, in a packaging material for nicotine pouches according to one embodiment of the present invention, the thermoplastic material fiber is a two-component fiber comprising two types selected from the group consisting of polypropylene, polyethylene, polyethylene terephthalate, and polylactic acid, and the thermoplastic material fiber can form a core-shell structure. Such a core-shell structure fiber has the advantage of having excellent physical properties as well as excellent sealing properties at low temperatures.

[0037] Thermoplastic fiber materials may include staple fibers. Staple fibers are fibers with discontinuous lengths and may be obtained by cutting a continuous filament.

[0038] In a packaging material for nicotine pouches according to one embodiment of the present invention, the basis weight of the nicotine pouch packaging material is 10 g / m². 2 ~50g / m 2 Preferably 30 g / m 2 That is the case.

[0039] If the basis weight of the packaging material for nicotine pouches is below the numerical range described above, the strength of the nicotine pouch material may decrease. On the other hand, if the basis weight of the packaging material for nicotine pouches exceeds the numerical range described above, moisture movement during use of the nicotine pouch may become difficult, and the release of the active ingredients of the filler (nicotine, flavor, etc.) may be suppressed.

[0040] In a nicotine pouch packaging material according to one embodiment of the present invention, the thickness of the nicotine pouch packaging material may be 50 μm to 150 μm, preferably 100 μm.

[0041] If the thickness of the packaging material for nicotine pouches is less than the numerical range described above, the nicotine pouch may easily burst. On the other hand, if the thickness of the packaging material for nicotine pouches exceeds the numerical range described above, moisture movement during use of the nicotine pouch becomes difficult, and the release of the active ingredients of the filler (nicotine, flavor, etc.) may be suppressed.

[0042] In the packaging material for a nicotine pouch according to an embodiment of the present invention, the gas density of the packaging material for a nicotine pouch can be 5 mg to 100 mg, preferably 10 mg to 60 mg. In particular, when the gas density of the packaging material for a nicotine pouch exceeds the numerical range described above, there is a risk that the filler may leak out.

[0043] In the packaging material for a nicotine pouch according to an embodiment of the present invention, the tensile strength of the packaging material for a nicotine pouch is 0.1 N / mm 2 ~5 N / mm 2 and preferably 1 N / mm 2 ~1.4 N / mm 2 and can be. When the tensile strength of the packaging material for a nicotine pouch is less than the numerical range described above, there is a risk that the nicotine pouch may rupture during the manufacture of the nicotine pouch or during use in the oral cavity.

[0044] In the packaging material for a nicotine pouch according to an embodiment of the present invention, the seal strength of the packaging material for a nicotine pouch is 0.02 N / mm 2 ~0.3 N / mm 2 and preferably 0.04 N / mm 2 ~0.25 N / mm 2 and can be, and it is preferable that the seal strength of the packaging material for a nicotine pouch is high. On the other hand, when the seal strength of the packaging material for a nicotine pouch is less than the numerical range described above, the packaging material for a nicotine pouch may easily rupture, and the nicotine pouch itself may also easily rupture, and there is a risk that the filler filled inside may easily leak out.

[0045] According to an embodiment of the present invention, a nicotine pouch including a nicotine pouch filler and a packaging material for a nicotine pouch can be provided. The packaging material for a nicotine pouch includes cellulose fibers and thermoplastic material fibers, the content of the cellulose fibers is 40% by weight to 80% by weight based on the total weight of the packaging material for a nicotine pouch, and the content of the thermoplastic material fibers can be 20% by weight to 60% by weight based on the total weight of the packaging material for a nicotine pouch.

[0046] In a nicotine pouch according to one embodiment of the present invention, the nicotine pouch filler may include nicotine, a release control excipient comprising at least one selected from the group consisting of cellulose and sugar alcohols, a binder, a pH adjuster, and a flavoring agent.

[0047] In the nicotine pouch filler, nicotine may include a nicotine salt, and the type of nicotine salt may include, for example, at least one selected from the group consisting of nicotine salt benzoate, nicotine salt tartrate, nicotine salt malate, and nicotine salt salicylate.

[0048] The nicotine content may be determined according to the desired strength of the nicotine pouch. If the nicotine content is below the range described above, it will be difficult to provide smokers with a sense of satisfaction from smoking. On the other hand, if the nicotine content exceeds the range described above, the nicotine stimulation may be excessive.

[0049] In the aforementioned nicotine pouch filler, the release control excipient can play a role in controlling the nicotine dissolution rate.

[0050] In the nicotine pouch filler, the binder may, as an example, include at least one selected from the group consisting of povidone K-25, hydroxypropylcellulose (HPC), low-substituted hydroxypropylcellulose (L-HPC), hydroxypropylmethylcellulose (HPMC), and carboxymethylcellulose (CMC).

[0051] The binder may be added by a wet binder addition method or a dry binder addition method.

[0052] A pH adjuster can adjust the pH of the nicotine pouch filler to a pH at which nicotine can be absorbed, so that when the nicotine pouch is inserted into the oral cavity, nicotine can be converted into a free-base nicotine form that can be rapidly absorbed. The pH of the nicotine pouch filler may be 8.3 to 8.5. The pH adjuster may, as an example, be at least one selected from the group consisting of sodium bicarbonate and sodium carbonate.

[0053] Flavorings are not limited to specific flavorings, as they only need to impart flavor to satisfy the smoker's preferences.

[0054] The nicotine pouch packaging material can be used to package a predetermined amount of the filler. The nicotine pouch packaging material can be packaged in a way that prevents the internal filler from leaking out during transportation and use after packaging, and can be manufactured so that smokers do not feel any foreign body sensation in their mouths when using it.

[0055] According to one embodiment of the present invention, a method for producing a nicotine pouch is provided, comprising the steps of: producing a dispersion of cellulose fibers and thermoplastic material fibers (S1); transferring the dispersion to a paper machine to form a packaging material for a nicotine pouch (S2); and a dehydration and drying step (S3), wherein the packaging material for the nicotine pouch comprises cellulose fibers and thermoplastic material fibers, the content of the cellulose fibers being 40% to 80% by weight of the total weight of the packaging material for the nicotine pouch, and the content of the thermoplastic material fibers being 20% ​​to 60% by weight of the total weight of the packaging material for the nicotine pouch.

[0056] In a method for manufacturing a nicotine pouch according to one embodiment of the present invention, the method for manufacturing the packaging material for the nicotine pouch may be a wet manufacturing method. By using a wet manufacturing method, a nicotine pouch packaging material with uniform airtightness can be manufactured.

[0057] The following explains each step in detail.

[0058] Step S1 is a step to produce a dispersion of cellulose fibers and thermoplastic material fibers. In this step, the cellulose fibers and thermoplastic material fibers can be uniformly dispersed in a solvent. The solvent may be water.

[0059] In a method for producing packaging material for nicotine pouches according to one embodiment of the present invention, step S1 may include selectively beating the cellulose fibers. That is, in this case, step S1 may include the step of beating the cellulose fibers and the step of mixing the beated cellulose fibers with thermoplastic material fibers to produce a dispersion. For example, the cellulose fibers may be pulp. The pulp can impart physical strength to the pouch material through this step.

[0060] Step S2 is the step of transferring the dispersion produced in the previous step to a paper machine to form packaging material for nicotine pouches. In step S2, the paper machine may be a machine that uniformly supplies the dispersion and produces a continuous web at high speed and in large quantities.

[0061] Step S3 is a dehydration and drying step. In step S3, the supplied dispersion can be dehydrated and dried, thereby ultimately forming a thin nicotine pouch packaging material.

[0062] A method for manufacturing a nicotine pouch according to one embodiment of the present invention may further include, after step S3, a step of sealing a nicotine pouch packaging material filled with nicotine pouch filler. In this step, a heat or ultrasonic welding method may be used, and in this case, the nicotine pouch packaging material can be sealed by adjusting conditions such as the type of thermoplastic fiber and / or the temperature according to the manufacturing conditions of the packaging material.

[0063] The present invention will be described in more detail below with reference to embodiments, but the present invention is not limited to the following embodiments.

[0064] 1. Manufacturing of packaging materials for nicotine pouches

[0065] [Manufacturing Example 1] A packaging material for nicotine pouches containing cellulose fibers and thermoplastic material fibers in a weight ratio of 6:4 was manufactured. In this process, soft pulp derived from coniferous trees was used as the cellulose fiber, and core-shell type polypropylene / polyethylene fibers were used as the thermoplastic material fibers. The manufacturing method is as follows.

[0066] First, the soft pulp was beaten and then mixed with core-shell type polypropylene / polyethylene fibers and water to produce a dispersion. The dispersion was then transferred to a paper machine, where it was dewatered and dried to obtain packaging material for nicotine pouches.

[0067] [Manufacturing Example 2] The material was manufactured in the same manner as in Manufacturing Example 1, except that it contained cellulose fibers and thermoplastic material fibers in a weight ratio of 4:6.

[0068] [Manufacturing Example 3] The material was manufactured in the same manner as in Manufacturing Example 1, except that it contained cellulose fibers and thermoplastic material fibers in a weight ratio of 8:2.

[0069] [Comparative Example 1] Except for using the spunlace manufacturing method, it was manufactured in the same manner as in Manufacturing Example 1.

[0070] 2. Experimental Example 1: Airtightness evaluation of packaging material for nicotine pouches

[0071] The airtightness of Manufacturing Examples 1-3 and Comparative Example 1 was evaluated. The airtightness was measured by the following method. First, the manufactured nicotine pouch packaging material was placed between two circular sieves with a diameter of 21 cm. The upper circular sieve was 10 mesh (sieve opening size: 2 mm), and the lower circular sieve was 12 mesh (sieve opening size: 1.7 mm). Then, 40 g of granular filler (average particle size 250 μm) was placed on the upper circular sieve, and after shaking, the weight of the filler remaining on the lower sieve was measured and evaluated. The results are shown in Table 1.

[0072] [Table 1]

[0073] Unlike Comparative Example 1, Manufacturing Examples 1-3 showed that 11 mg to 57 mg of filler remained on the lower sieve, confirming good airtightness.

[0074] The results from manufacturing examples 1-3 confirmed that a higher cellulose content and lower thermoplastic fiber content resulted in higher airtightness.

[0075] 3. Experimental Example 2: Evaluation of the flexibility properties of packaging material for nicotine pouches

[0076] Sensory evaluation was conducted to assess the flexibility properties of the packaging materials obtained in Production Examples 1-3 and Comparative Example 1. For the sensory evaluation, the packaging materials obtained in each production example and comparative example were processed into 28mm x 15mm pouches and evaluated by a panel of five individuals using them in their mouths, with a maximum score of 5 points. The results are shown in Table 2.

[0077] [Table 2]

[0078] From Table 2 above, it can be seen that manufacturing examples 1 and 3 exhibit particularly superior flexibility characteristics compared to manufacturing example 2.

[0079] 4. Experimental Example 3: Evaluation of Tensile Strength and Seal Strength of Packaging Material for Nicotine Pouches

[0080] The tensile strength and seal strength of the packaging materials obtained in Manufacturing Examples 1-3 and Comparative Example 1 were evaluated. Tensile strength was evaluated by cutting the packaging material obtained in each manufacturing example and comparative example into pieces with a width of 15 mm and a length of 20 mm or more, and measuring it according to the measurement method of EDANA NWEP 110.1.R10. Seal strength was evaluated by cutting the packaging material obtained in each manufacturing example and comparative example into two pieces with a width of 15 mm or more and a length of 20 mm or more, sealing the lateral ends with a manual heat sealer (seal width 2 mm, 150°C, 2 seconds), and then measuring it according to the same measurement method as for tensile strength. The results are shown in Table 3.

[0081] [Table 3]

[0082] In manufacturing example 2, the seal strength was higher than the tensile strength, making it impossible to measure the seal strength.

[0083] The results from manufacturing examples 1-3 showed that as the cellulose fiber content increased and the thermoplastic fiber content decreased, the tensile strength tended to increase, while the seal strength tended to decrease. Manufacturing example 1 showed excellent results in both tensile strength and seal strength.

[0084] Based on the aforementioned experimental examples, it is predicted that by using the nicotine pouch packaging material described in the claims, it will be possible to manufacture nicotine pouches that are airtight, flexible, and have excellent tensile strength.

[0085] As described above, the embodiments have been explained based on the limited drawings, but those skilled in the art can apply various technical modifications and variations based on the above disclosure. For example, the described techniques may be carried out in a different order than the described methods, and / or the components of the described systems, structures, devices, circuits, etc. may be combined or assembled in a different manner than the described methods, or substituted or replaced by other components or equivalents, and satisfactory results may still be obtained.

[0086] Therefore, other embodiments, other examples, and claims equivalent to those described below are also included in the scope of the claims.

Claims

1. Cellulose fibers, Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the packaging material for nicotine pouches. The content of the thermoplastic fiber is 20% to 60% by weight relative to the total weight of the nicotine pouch packaging material, in a nicotine pouch packaging material.

2. The cellulose fiber content is 55% to 65% by weight of the total weight of the nicotine pouch packaging material. The nicotine pouch packaging material according to claim 1, wherein the content of the thermoplastic material fiber is 35% to 45% by weight relative to the total weight of the nicotine pouch packaging material.

3. The packaging material for nicotine pouches according to claim 1, wherein the weight ratio of the cellulose fibers to the thermoplastic material fibers is 4:6 to 8:

2.

4. The cellulose fiber comprises at least one selected from the group consisting of cellulose, viscose, rayon, and pulp, as described in claim 1, for use as a nicotine pouch packaging material.

5. The cellulose fiber is pulp, The pulp is beaten, as described in claim 1, for packaging materials for nicotine pouches.

6. The packaging material for nicotine pouches according to claim 1, wherein the thermoplastic fiber comprises at least one selected from the group consisting of nylon, polylactic acid, polyethylene, polypropylene, polyethylene / polypropylene, polyethersulfone, polyethylene terephthalate, and low-melting-point polyethylene terephthalate.

7. The aforementioned thermoplastic fiber is a two-component fiber comprising two types selected from the group consisting of polypropylene, polyethylene, polyethylene terephthalate, and polylactic acid. The thermoplastic fiber forms a core-shell structure, as described in claim 1, for packaging a nicotine pouch.

8. The basis weight of the aforementioned nicotine pouch packaging material is 10 g / m². 2 ~50g / m 2 And, The nicotine pouch packaging material according to claim 1, wherein the thickness of the nicotine pouch packaging material is 50 μm to 150 μm.

9. The airtightness of the aforementioned nicotine pouch packaging material is 5 mg to 100 mg. The tensile strength of the aforementioned nicotine pouch packaging material is 0.1 N / mm². 2 ~5 N / mm 2 And, The sealing strength of the aforementioned nicotine pouch packaging material is 0.02 N / mm². 2 ~0.3 N / mm 2 The packaging material for nicotine pouches according to claim 1.

10. A nicotine pouch comprising a nicotine pouch filler and a nicotine pouch packaging material, The aforementioned packaging material for nicotine pouches is Cellulose fibers, Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the nicotine pouch packaging material. A nicotine pouch in which the content of the thermoplastic material fiber is 20% to 60% by weight relative to the total weight of the packaging material for the nicotine pouch.

11. The aforementioned nicotine pouch filler is Nicotine and, A release-controlled excipient comprising at least one selected from the group consisting of cellulose and sugar alcohols, A binder and pH adjuster, Fragrances and, The nicotine pouch according to claim 10, including the above.

12. A step (S1) to produce a dispersion of cellulose fibers and thermoplastic material fibers, The steps include transferring the dispersion to a paper machine to form packaging material for nicotine pouches (S2), Dehydration and drying step (S3), Includes, The aforementioned packaging material for nicotine pouches is Cellulose fibers, Thermoplastic fiber and Includes, The cellulose fiber content is 40% to 80% by weight relative to the total weight of the nicotine pouch packaging material. A method for producing a nicotine pouch, wherein the content of the thermoplastic fiber is 20% to 60% by weight relative to the total weight of the packaging material for the nicotine pouch.

13. The method for producing a nicotine pouch according to claim 12, wherein step (S1) comprises beating the cellulose fibers.

14. A method for producing a nicotine pouch according to claim 12, further comprising the step of sealing a nicotine pouch packaging material filled with nicotine pouch filler after the above step (S3).