KR102885242B1 - Manufacturing method of sheet for smoking article - Google Patents

Abstract

The present invention relates to a method for manufacturing a sheet for a smoking article, and more specifically, the method comprises the steps of (S1) placing tobacco material in an aqueous solvent, soaking it, and pressurizing it to separate it into a solid portion and a liquid portion; (S2) removing the liquid portion, forming a sheet with the solid portion, and then drying and crushing the sheet; (S3) mixing pulp with the crushed sheet to form a slurry; and (S4) forming a sheet with the slurry, wherein the specific component comprises at least one selected from the group consisting of nicotine and nitrate. A smoking article comprising a sheet produced by the above method is characterized in that the specific component is reduced and has an excellent flavor.

Description

Manufacturing method of sheet for smoking article

The present invention relates to a method for manufacturing a sheet for a smoking article, a sheet for a smoking article using the same, and a smoking article including the same.

During the production and processing of tobacco products, tobacco by-products such as tobacco stems, leaf fragments, and tobacco dust produced during the manufacturing process (i.e., stemming, maturing, blending, cutting, drying, cooling, screening, forming, and packaging) can be recycled to reconstitute their useful tobacco content. Such tobacco by-products can be manufactured into reconstituted tobacco sheets.

The above reconstituted tobacco sheets were cut in a manner similar to whole leaf tobacco and used as tobacco filling material suitable for cigarettes and other smoking articles, or the tobacco sheets themselves were used.

Korean Patent Publication No. 2020-0032505

The present invention provides a method for manufacturing a smoking article sheet having excellent flavor without including a specific component, wherein a solid portion and a liquid portion are separated from a tobacco material by utilizing a part of a papermaking process, and after removing the liquid portion, a sheet is manufactured using the solid portion (cellulose).

In addition, the present invention provides a sheet for a smoking article manufactured by the manufacturing method of the present invention.

In addition, the present invention provides a smoking article including a smoking article sheet according to the present invention.

However, the problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to one embodiment of the present invention, a method for manufacturing a sheet for a smoking article,

Step (S1) of placing tobacco material in an aqueous solvent, boiling it, and pressurizing it to separate it into a solid portion and a liquid portion;

A step (S2) of removing the liquid portion, forming a sheet with the solid portion, and then drying and crushing the sheet;

A step (S3) of mixing pulp into the above crushed sheet to make a slurry; and

It includes a step (S4) of forming a sheet by injecting the above slurry,

The above specific component relates to a method for manufacturing a sheet for a smoking article, wherein the sheet comprises at least one selected from the group consisting of nicotine and nitrate.

According to one embodiment of the present invention, the step S1 may be performed by a method including a step (S1-1) of placing tobacco material in an aqueous solvent and heating it to 50°C to 90°C for 20 to 40 minutes; and a step (S1-2) of pressurizing the material after the heating to separate it into a solid portion and a liquid portion.

According to one embodiment of the present invention, the tobacco material may include at least one selected from the group consisting of tobacco leaves, tobacco leaf pieces, tobacco stems, and tobacco dust.

According to one embodiment of the present invention, a step of drying the sheet may be further included after the step S4.

According to one embodiment of the present invention, the tobacco material may be ground to an average powder size of 0.03 mm to 0.30 mm.

According to one embodiment of the present invention, the step of adding an aerosol generating material to the sheet may be further included.

According to one embodiment of the present invention, the nicotine content of the sheet for the smoking article may be 1.0% or less.

According to one embodiment of the present invention, the nitrate content of the sheet for smoking articles may be 0.1% or less.

According to one embodiment of the present invention, the present invention relates to a sheet for a smoking article manufactured by a manufacturing method according to the present invention.

According to one embodiment of the present invention, there is provided a smoking article comprising a sheet according to the present invention.

The present invention relates to a method for manufacturing a sheet for a smoking article using tobacco material, wherein the method comprises separating tobacco material into solid and liquid, similar to a papermaking sheet-type process, manufacturing a sheet using the separated solid, drying and crushing the solid, and mixing it with pulp to form a slurry to manufacture a sheet-type sheet, and the sheet is characterized in that it maintains excellent flavor even when a specific component is removed.

Figure 1 is a flowchart showing a manufacturing method according to one embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In describing the present invention, detailed descriptions of related known functions or configurations will be omitted if it is determined that such detailed descriptions may unnecessarily obscure the gist of the present invention. In addition, the terms used in this specification are terms used to appropriately express preferred embodiments of the present invention, and may vary depending on the intention of the user or operator, or the customs of the field to which the present invention belongs. Therefore, the definitions of these terms should be determined based on the contents throughout this specification. The same reference numerals presented in each drawing represent the same elements.

Throughout the specification, when we say that an element is "on" another element, this includes not only cases where the element is in contact with the other element, but also cases where another element exists between the two elements.

Throughout the specification, when a part is said to "include" a component, this does not mean that it excludes other components, but rather that it may include other components.

Hereinafter, the method for manufacturing a sheet for a smoking article of the present invention will be described in detail with reference to examples and drawings. However, the present invention is not limited to these examples and drawings.

The present invention is a method for manufacturing a sheet for smoking articles,

A step (S1) of placing tobacco material in an aqueous solvent, boiling it, and pressurizing it to separate it into a solid portion and a liquid portion;

A step (S2) of removing the liquid portion, forming a sheet with the solid portion, and then drying and crushing the sheet;

A step (S3) of mixing pulp into the above crushed sheet to make a slurry; and

It includes a step (S4) of forming a sheet by injecting the above slurry,

The present invention relates to a method for manufacturing a sheet for a smoking article, wherein the sheet is characterized by having a reduced specific component, and the specific component includes at least one selected from the group consisting of nicotine and nitrate.

In the present invention, a "smoking article" may mean any smokeable product or any product capable of providing a smoking experience, regardless of whether it is based on tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco, or tobacco substitutes. For example, the smoking article may mean a smokeable article capable of generating an aerosol, such as a cigarette, cigar, cigarillo, electronic cigarette (e.g., a heated tobacco), and the like, and may be used in particular for non-combustible heated tobacco articles.

According to one embodiment of the present invention, the step S1 may be performed by a method that adopts a part of a paper-making type sheet manufacturing method, and the step S1 may be performed by a method including a step (S1-1) of placing a tobacco material in an aqueous solvent and heating it at 50° C. to 90° C. for 20 to 40 minutes; and a step (S1-2) of pressurizing and separating it into a solid portion and a liquid portion after the heating. The present invention separates the tobacco material into the solid portion and the liquid portion as described above, crushes a sheet manufactured from only the solid portion, and then manufactures a sheet for a smoking article through a slurry process.

Conventionally, flat leaf sheets for smoking articles have been manufactured using a papermaking or slurry manufacturing process. The papermaking manufacturing process involves crushing tobacco materials, mixing them with an aqueous solvent, separating a solid portion containing fibers and a liquid (extract) containing a large amount of specific components, manufacturing the fibers into a sheet using a papermaking process, concentrating the separated extract, and adding the concentrated extract to the sheet.

However, unlike this, in the present invention, a sheet is manufactured using only the separated solid portion without adding the concentrated extract, and then a sheet for a smoking article is manufactured using this.

That is, the sheet for smoking articles according to the above manufacturing method can maintain excellent flavor even though a specific component is reduced.

According to one embodiment of the present invention, the tobacco material may be at least one selected from the group consisting of tobacco leaves, tobacco leaf fragments, tobacco stems, and tobacco dust. Preferably, it may be tobacco leaves.

According to one embodiment of the present invention, the pulverization in step S2 may be pulverization to an average powder size of 0.03 mm to 0.30 mm. The pulverization may be performed using equipment such as a hammer mill, a cutter head, an air control mill, or the like. The tobacco material subjected to the pulverization may be pulverized when the moisture content is less than about 15 wt% to less than about 5 wt%.

According to one embodiment of the present invention, in step S3, water is added to the crushed sheet to dissolve and disintegrate it, and pulp is mixed to prepare a slurry.

According to one embodiment of the present invention, in step S4, a process such as adding a concentrated solution obtained by concentrating the liquid portion separated in step S1 is excluded, and the slurry is manufactured into a sheet as is.

The above sheet can be manufactured by injecting slurry, but is not limited to the injection method as long as it can be manufactured in the form of a sheet.

According to one embodiment of the present invention, a step of drying the sheet may be further included after step S4. The moisture content of the sheet manufactured from the slurry may be reduced to less than 50 wt%. After drying, a moisturizer may be added, and the content of the moisturizer may be greater than 5 wt% and less than 40 wt%.

According to one embodiment of the present invention, the method may further comprise adding an aerosol-generating material to the sheet. For example, the aerosol-generating material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The aerosol-generating material may be heated by combustion or heating to generate an aerosol.

According to one embodiment of the present invention, the sheet manufactured by the manufacturing method may have a nicotine content of 1.0% or less and a nitrate content of 0.1% or less.

In addition, the present invention provides a sheet for a smoking article manufactured by the above manufacturing method, and can provide a smoking article including the sheet.

According to one embodiment of the present invention, the smoking article may include a cooling section and a filter section, and may be composed of a smoking material section to which a sheet for a smoking article according to the present invention is applied. The smoking article may be arranged longitudinally, with the smoking material section, cooling section, and filter section arranged longitudinally, but the order may be freely changed.

For example, the length of the smoking material portion may be approximately 15 mm to 35 mm. In addition to the sheet for the smoking article, the smoking material portion may include other tobacco materials. The other tobacco materials may be tobacco leaves, tobacco side veins, expanded tobacco, cut tobacco, etc., and the smoking material portion may be surrounded and disposed by a thermally conductive wrapper and a wrapper, etc. The thermally conductive wrapper may be formed of aluminum (Al), gold (Au), iron (Fe), nickel (Ni), cobalt (Co), conductive carbon (C), graphite, mild steel, stainless steel, copper (Cu), or bronze. The thermally conductive wrapper may have a thickness of several μm to several hundred μm, but is not necessarily limited thereto. The thermally conductive wrapper may uniformly transfer heat generated by the heating means to the smoking material portion.

For example, the cooling unit can cool the airflow formed by the aerosol generated from the smoking material unit, and can be made of a polymer material or a biodegradable polymer material and can have a cooling function. For example, it can be made of polylactic acid (PLA) fiber, but is not limited thereto. Alternatively, it can be made of a cellulose acetate filter having a plurality of holes. However, the cooling unit is not limited to the examples described above, and any material that performs the function of cooling the aerosol can be used without limitation. For example, the cooling unit can be a tube filter or a pipe filter including a hollow portion.

For example, the filter unit may be a mono-filter, a dual-filter, or a triple-filter. In addition, the filter unit may include at least one filter selected from a porous matrix structure, a tube structure, and a paper tube structure. The filter unit may have a length selected from 5 mm to 20 mm; or 10 mm to 15 mm.

The filter is composed of a filter tow known in the art of the present invention, and may include, but is not limited to, a fibrous, filamentary or two-component filter tow comprising at least one of polymer, paper, cellulose acetate, activated carbon and carbon.

In addition, a tipping paper that wraps the filter material and comes into contact with the mouth may be further included. The tipping paper may have one or more perforations formed therein.

The above filter portion may be manufactured to generate a flavor. For example, a flavoring agent may be sprayed onto the filter material, or a separate fiber coated with a flavoring agent may be inserted into the interior of the filter portion.

The cooling unit and filter unit may include an aerosol modifier. For example, one or more of the cooling unit, filter unit, and tipping paper of the smoking article according to the present invention may include one or more aerosol modifiers. Suitable aerosol modifiers include, but are not limited to, flavoring agents; and chemesthetic agents. The term flavoring agent is used to describe any substance that, when used, imparts one or both of a taste and/or an aroma to the aerosol generated by the tobacco material and aerosol-generating material of the smoking article.

In addition, the cigarette paper may be composed of cellulose fibers obtained from wood, flax, or other materials, and may wrap the medium portion, wrap the smoking article entirely including the medium portion, or wrap a portion excluding the filter portion. The base paper of the cigarette paper may have a thickness of about 30 μm to about 100 μm, and the basis weight of the base paper may be about 15 g/m ² to about 80 g/m ² .

Smoking articles according to the present invention may also include one or more aerosol modifiers that are both flavoring and object-sensing agents downstream. For example, one or more of the cooling section and the filter section of smoking articles according to the present invention may include menthol or another flavoring agent that provides a cooling object-sensing effect.

The diameter of the above smoking article may be 4 mm to 10 mm, and the circumference may be 14 mm to 29 mm. Additionally, the length may be 45 mm to 100 mm.

Hereinafter, embodiments are described in detail with reference to the attached drawings. However, the embodiments may be modified in various ways, and the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, or alternatives to the embodiments are included within the scope of the patent application.

The terms used in the examples are for illustrative purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, but should be understood to not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments pertain. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

In addition, when describing with reference to the attached drawings, identical components will be assigned the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted. When describing embodiments, if a detailed description of a related known technology is judged to unnecessarily obscure the gist of the embodiment, the detailed description will be omitted.

[Example]

Example 1

Tobacco material was placed in an aqueous solvent at a temperature of approximately 70°C, soaked for approximately 30 minutes, and pressed to separate it into solid (cellulose) and liquid (extract). The separated solid was formed into a sheet, dried, and then chopped into small pieces. The chopped raw material was pulverized, and the pulverized raw material was added to water and pulped to produce a slurry. The slurry was then injected into a sheet shape, which was then dried to complete a sheet for a smoking article.

Comparative Example 1

Yellow tobacco

Comparative Example 2

Slurry-made flat leaf

Comparative Example 3

Plate-shaped leaves manufactured by paper milling

<Check ingredients>

The manufactured sheets were analyzed for content using chromatography. The results of the analysis are shown in Table 1 below. In addition, Comparative Examples 1, 2, 3, and Example 1 were manufactured using the same glue.

division Nicotine (%) Party (%) NO ₃ (%) Goat (%) note Comparative Example 1. 4.06 14.7 0.13 0.49 Each grass Comparative Example 2. 3.27 10.89 0.10 0.37 Slurry plate leaf Comparative Example 3. 2.67 11.51 0.07 0.40 Paper-cut leaf Example 1. 0.20 0.2 0.03 0.12

From the results in Table 1, it can be confirmed that the leaf plate produced by the method of the present invention has significantly reduced nicotine and nitrate contents compared to the comparative examples.

<Flavor Check>

A non-combustible smoking article including a cooling element and a filter portion was manufactured using the manufactured sheet.

Through a panel of 20 people, the taste of the cigarettes manufactured in Example 1 and Comparative Examples 1 to 3 was evaluated and shown in Table 2 below.

division Tobacco flavor Rich smoke Tobacco flavor intensity This hobby pepper Comparative Example 1. 4.6 4.7 4.8 3.2 3.4 Comparative Example 2. 4.6 4.6 4.3 3.9 3.9 Comparative Example 3. 3.5 4.6 4.2 4.2 3.3 Example 1. 4.0 4.7 2.4 2.5 1.5

From the results in Table 2, it was found that there was little difference in the abundant smoking amount between the smoking article of Example 1 with a reduced specific component and the smoking article of Comparative Example 1 containing the cigarette butt. In addition, Comparative Examples 2 and 3 also showed similar results in terms of tobacco taste.

Compared to Comparative Example 1, the intensity of the tobacco taste was insufficient, but significantly superior results were confirmed in terms of taste and stimulation.

Therefore, it was confirmed that the smoking article of Example 1 showed similar or superior results to existing smoking articles in terms of overall tobacco taste, even though certain components were reduced.

Although the embodiments described above have been described with limited examples and drawings, those skilled in the art will recognize that various modifications and variations are possible based on the above teachings. For example, appropriate results can be achieved even if the described techniques are performed in a different order than described, and/or the described components are combined or combined in a different manner than described, or are replaced or substituted with other components or equivalents. Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the claims described below.

Claims (10)

A method for manufacturing a sheet for smoking articles,
Step (S1) of placing tobacco material in an aqueous solvent, boiling it, and pressurizing it to separate it into a solid portion and a liquid portion;
A step (S2) of removing the liquid portion, forming a sheet with the solid portion, and then drying and crushing the sheet;
Step (S3) of mixing pulp into the above-mentioned crushed tobacco material to make a slurry; and
It includes a step (S4) of forming a sheet by injecting the above slurry,
In the above steps S2 to S4, the liquid portion separated in the above step S1 is not added,
The above step S1 is performed by a method including a step (S1-1) of placing tobacco material in an aqueous solvent and heating it to 50°C to 90°C for 20 to 40 minutes; and a step (S1-2) of pressurizing and separating it into a solid portion and a liquid portion after the heating.
Further comprising a step of drying the sheet after the above step S4,
The above tobacco material is ground to an average powder size of 0.03 mm to 0.30 mm,
The above sheet has a reduced specific component, and the specific component includes at least one selected from the group consisting of nicotine and nitrate.
A method for manufacturing a sheet for smoking articles, wherein the nicotine content is 1.0% or less and the nitrate content is 0.1% or less.
delete In the first paragraph,
A method for manufacturing a sheet for a smoking article, wherein the tobacco material comprises at least one selected from the group consisting of tobacco leaves, tobacco leaf pieces, tobacco stems, and tobacco dust.
delete delete In the first paragraph,
A method for manufacturing a sheet for a smoking article, further comprising the step of adding an aerosol generating substance to the sheet.
delete delete Manufactured by any one of the manufacturing methods of Article 1, Article 3 and Article 6,
A sheet for smoking articles having a nicotine content of 1.0% or less and a nitrate content of 0.1% or less.
Smoking articles including the sheet of Article 9.