KR20190048385A - Cigarette filter, manufacturing method thereof and cigarette containing the same - Google Patents

Abstract

In a cigarette filter according to an embodiment of the present invention, a chemical adsorbent, which contains a high molecular substance represented by chemical formula 1, wherein n is 2 to 300; glycerin; glucose; and propylene glycol, is dispersed. An embodiment of the present invention can reduce a manufacturing cost of the cigarette filter and can shorten a manufacturing time thereof.

Description

TECHNICAL FIELD The present invention relates to a cigarette filter, a method of manufacturing the cigarette filter, and a cigarette containing the cigarette filter,

A tobacco filter, a method for producing the same, and a cigarette comprising the same are provided.

Generally, in order to produce cigarettes, various kinds of leaf tobacco are first blended and processed so as to have desired flavor and taste. Next, the processed leaf tobacco is folded to prepare cut tobacco leaf, and the cigarette tobacco is rolled with cigarette paper to produce a filter-free cigarette. Next, the filter is attached to the filter-free cigarette if necessary.

The cigarette may be made of flax, wood pulp, etc., and it is required that the burning property and flavor of the cigarette are maintained when burned. The cigarette filter can be a mono filter or multiple filters and is surrounded by cigarette filter wrapping paper. The tobacco filter is connected to the cigarette buttocks by tipping paper, and the tip paper may contain fine holes.

It is known that about 5,000 kinds of compounds are contained in the main stream produced by such tobacco combustion, and carbonyl compounds such as formaldehyde are known to be harmful to human body. Therefore, much research has been conducted on a method for removing a carbonyl compound from mainstream smoke.

Conventionally, physical adsorbents such as activated carbon or activated carbon fibers have been used to remove carbonyl compounds from mainstream smoke. However, there is a limit to the use of such a physical adsorbent to remove volatile and low molecular weight components such as formaldehyde. For example, formaldehyde removal efficiency through activated carbon or activated carbon fibers that perform physical adsorption through multiple pores remains at about 5%.

Also, when a physical adsorbent is applied to a cigarette filter, the adsorbent component may be transferred to the mouth of the smoker or the color of the filter may change to black, so that the adsorbent is applied to the filter located at the mouth end contacting the mouth of the smoker I can not do it. Because of this, the tobacco filter needs to be composed of multiple filters of a double filter or more, the manufacturing cost increases and the manufacturing time can be prolonged because the filter manufacturing process of two or more stages is accompanied and the adsorbent is applied to only a part of the entire filter space Adsorption performance may be deteriorated.

One embodiment of the present invention is to improve the ability of the tobacco filter to remove carbonyl compounds.

One embodiment of the present invention is to reduce the amount of formaldehyde migration in the tobacco filter.

One embodiment of the present invention is to minimize discoloration of the cigarette filter.

One embodiment of the present invention is to reduce the manufacturing cost of the cigarette filter and shorten the manufacturing time.

Embodiments according to the present invention can be used to accomplish other tasks not specifically mentioned other than the above-described tasks.

In the cigarette filter according to an embodiment of the present invention, a polymeric substance represented by the following Chemical Formula 1, a chemical adsorbent containing glycerin, glucose, and propylene glycol is dispersed.

[Chemical Formula 1]

(In the formula (1), n is 2 to 300)

Here, the cigarette filter removes the carbonyl compound contained in the cigarette smoke.

At least a portion of the polymeric material may be an oligomer.

Based on the total mass of the chemical adsorbent, the polymer material is 15 mass% to 25 mass%, the glycerin is 70 mass% to 80 mass%, the glucose is 2 mass% to 4 mass%, and the propylene glycol is 2 mass% 4% by mass.

A plasticizer or an emulsifier.

When the tobacco filter comprises the chemical adsorbent, the plasticizer and the emulsifier, the chemical adsorbent is 10 to 30 mass% based on the total mass of the chemical adsorbent, the plasticizer and the emulsifier, and the plasticizer is 65 to 85 mass% %, And the emulsifier may be 1% by mass to 15% by mass.

The plasticizer may include triethyl citrate or triacetin.

The emulsifier may comprise at least one of a fatty acid carboxyl-based compound, a sorbitan ester-based compound, a sorbate-based compound, or an ethoxy-based compound.

Based on the total mass of the cigarette filter, the chemical adsorbent may be from 0.001% to 8% by mass.

Activated carbon, activated carbon fiber, zeolite, ion exchange resin, or silica gel.

A method for preparing a cigarette filter according to an embodiment of the present invention comprises the steps of preparing a liquid chemical adsorbent comprising a polymer material represented by the following formula 1, glycerin, glucose, and propylene glycol,

[Chemical Formula 1]

(In the formula (1), n is 2 to 300)

Mixing at least one of a plasticizer and an emulsifier with the liquid chemical sorbent to prepare a mixed solution, and spraying the mixed solution to a tow containing the fiber bundle.

Based on the total mass of the liquid chemical adsorbent, the polymer material is 15 mass% to 25 mass%, the glycerin is 70 mass% to 80 mass%, the glucose is 2 mass% to 4 mass%, and the propylene glycol is 2 mass % To 4% by mass.

When the mixed solution contains a chemical adsorbent, a plasticizer and an emulsifier, the chemical adsorbent is 10 mass% to 30 mass%, the plasticizer is 65 mass% to 85 mass%, and the emulsifier is 1 By mass to 15% by mass.

The fibers of the tow may comprise one or more materials of cellulose acetate, lyocell, polypropylene, or polylactic acid.

The step of preparing the liquid chemical adsorbent may include a step of mixing the guanidine derivative and the glycerin, followed by copolymerization through heating to prepare the polymer material.

A cigarette according to an embodiment of the present invention includes a cigarette filter portion including a cigarette crest portion and at least one cigarette filter portion and being in contact with a part of each cigarette crest portion, , Glycerin, glucose, and propylene glycol.

[Chemical Formula 1]

(In the formula (1), n is 2 to 300)

Here, the tobacco filter removes the carbonyl compound contained in the cigarette smoke.

The tobacco filter may further comprise at least one of activated carbon, activated carbon fiber, zeolite, ion exchange resin, or silica gel.

Wherein the tobacco filter portion comprises two or more tobacco filters, the chemical adsorbent is dispersed in each of the two or more tobacco filters, and the activated carbon, the activated carbon fiber, the zeolite, the ion exchange resin, May be included in the cigarette filter.

The cigarette filter can be cylindrical or sheet-like.

An embodiment of the present invention provides a cigarette filter, a method of manufacturing the same, and a cigarette comprising the cigarette filter, which can improve the ability to remove the carbonyl compound of the cigarette filter, reduce the formaldehyde migration amount of the cigarette filter, Can be minimized, the manufacturing cost of the cigarette filter can be reduced, and the manufacturing time can be shortened.

1 is a perspective view schematically showing a cigarette according to an embodiment.
2 is a cross-sectional view schematically showing a cigarette according to an embodiment.
3 is a cross-sectional view schematically showing a cigarette according to an embodiment.
4 is a graph showing the results of evaluating formaldehyde removal performance by continuously exposing (contacting) a chemical adsorbent according to an embodiment to formaldehyde.
FIG. 5A is a photograph of a solution containing only a chemical adsorbent and a plasticizer, and FIG. 5B is a photograph of a mixed solution according to an embodiment.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other features and advantages of the present invention will be more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. The present invention may be embodied in many different forms and is not limited to the embodiments described herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same reference numerals are used for the same or similar components throughout the specification. In the case of publicly known technologies, a detailed description thereof will be omitted.

In the drawings, the thickness is enlarged to clearly represent the layers and regions. It will be understood that when an element such as a layer, film, region, plate, or the like is referred to as being "on" another portion, it includes not only the element directly over another element, On the other hand, when a part is "directly on" another part, it means that there is no other part in the middle. On the contrary, when a portion such as a layer, film, region, plate, or the like is referred to as being "under" another portion, this includes not only the case where the other portion is "directly underneath" On the other hand, when a part is "directly beneath" another part, it means that there is no other part in the middle.

Throughout the specification, when an element is referred to as " comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Throughout the specification, molecular weight means number average molecular weight.

FIG. 1 is a perspective view schematically showing a cigarette according to an embodiment, FIG. 2 is a cross-sectional view schematically showing a cigarette according to an embodiment, and FIG. 3 is a cross-sectional view schematically showing a cigarette according to an embodiment.

1 and 2, a cigarette 1 includes a cigarette column portion 10, which is burnt by fire, and a cigarette filter portion 20, which filters the cigarette smoke. . The cigarette crest 10 may be surrounded by a cigarette paper 19 and the cigarette filter portion 20 may be surrounded by a cigarette filter wrapper 28. The cigarette crest portion 10 and the cigarette filter portion 20 may be connected by a tipping paper 29.

The cigarette crest 10 includes a cigarette tobacco 11 cut from leaf tobacco processed by various methods.

The cigarette paper 19 includes at least one coating portion 18. For example, the coating portion 18 may be in the form of a band, but may have various other shapes. The number, thickness, and shape of the coating portions 18 may be variously modified, and the intervals of the plurality of coating portions 18 may be variously modified. The coating portion 18 can lower the degree of porosity of the cigarette paper 19. When the cigarette reaches the coating portion 18, the amount of oxygen flowing into the cigarette tips 10 decreases, Can be digested.

The cigarette filter portion 20 may have a mono filter structure including the first cigarette filter 21. Also, the cigarette filter portion 20 may have two or more multiple filter structures. For example, referring to FIG. 3, the cigarette filter portion 20 may include a second cigarette filter 22 and a third cigarette filter 23. In addition, the cigarette filter portion 20 may include three filter members and four filter members.

The tobacco filters 21, 22, and 23 according to the embodiments filter and remove various harmful components included in the cigarette smoke (mainstream smoke) generated during the cigarette combustion. The tobacco filters 21, 22 and 23 can effectively remove carbonyl compounds such as formaldehyde and acetaldehyde from mainstream smoke.

The tobacco filters 21, 22, 23 include tows made of fiber bundles and chemical adsorbents dispersed in tows.

The tow includes cellulose acetate fibers obtained by extracting cellulose from wood pulp and acetylated, lyocell fibers obtained by fiberizing cellulose itself, polypropylene fibers, or polylactic acid fibers And may include two or more fibers.

Chemical adsorbents include polymeric materials, glycerin, glucose and propylene glycol. Here, the polymer material includes a plurality of amino functional groups (functional groups) and can be represented by the following formula (1).

[Chemical Formula 1]

In formula (1), n may be from 2 to 300.

)으로 분해되어 제거될 수 있다.The polymeric material chemically reacts with the weak acidity and cationic properties of the carbonyl compound such as formaldehyde to selectively remove it. The polymeric material comprises a number of amino functional groups (-NH ₂ ). After these amino functional groups are bound (adsorbed) to molecules such as formaldehyde or acetaldehyde, molecules such as formaldehyde and acetaldehyde are reacted with water (H ₂ O) and aldoxime

) And can be removed.

)의 공중합체일 수 있다. 이때, 구아니딘 유도체는, 예를 들어, 아미노구아니딘 히드로클로라이드(amino guanidine hydrochloride,

)일 수 있다. 또한, 공중합 반응은 구아니딘 유도체와 글리세린의 혼합물을 가열함으로써 진행될 수 있다.Polymeric materials include guanidine derivatives and glycerin (

). ≪ / RTI > The guanidine derivative may be, for example, amino guanidine hydrochloride,

). Further, the copolymerization reaction can be carried out by heating a mixture of a guanidine derivative and glycerin.

If the molecular weight of the polymer substance is excessively large, adsorption and decomposition performance on the carbonyl compound may be deteriorated. Therefore, the molecular weight of the polymer material needs to be controlled to a certain level, and at least a part of the polymer material may be an oligomer that is produced by polymerizing a unit to a low degree. For example, the number average molecular weight of the polymeric material may be from about 25000 to about 35000. The molecular weight control of such a polymer substance can be carried out by glycerin contained in the step of preparing the polymer substance. Since the polymer material is produced through the glycerin-based copolymerization reaction, the molecular weight of the polymer material can be controlled so as not to become too large.

Based on the total chemical adsorbent, the polymeric material may be from about 15 mass% to about 25 mass%. Within this range, the removal performance of the carbonyl compound can be further improved.

Glycerin can be used as a solvent in place of water in conventional chemical adsorption compositions, and can improve the dispersibility of the polymeric material, which allows uniform distribution of the polymeric material in the chemical adsorbent.

When a chemical adsorbent containing conventional water is sprayed on a cigarette filter, a separate heating process or the like may be added to dry the water. In addition, when a conventional chemical adsorbent is mixed with triethyl citrate (TEC) or triacetine, which is a plasticizer, acid acceptance can be expressed.

On the other hand, in the case of a chemical adsorbent containing glycerin according to an embodiment, even if triethyl citrate or triacetin is mixed, no acid may be generated, and a separate step for drying such as a heating process may be omitted, Can be reduced, and the economy can be improved.

Based on the total chemical adsorbent, the glycerin may be from about 70% to about 80% by weight. Within this range, the dispersibility of the polymer substance can be further improved. Further, when the content is out of this range, the color of the chemical adsorbent may be discolored to a yellow-based color.

Glucose constitutes a carbohydrate chain to control the polymeric material to have an appropriate number of amino groups and to improve the dispersibility of the polymeric material in the chemical adsorbent.

Based on the total chemical adsorbent, the glucose may be from about 2 mass% to about 4 mass%. Within this range, the dispersibility of the polymer substance can be further improved, and the polymer substance can contain an appropriate number of amino groups.

Propylene glycol, as a preservative, can extend the lifetime of the chemical adsorbent and maintain the ability to remove carbonyl compounds.

Based on the total chemical adsorbent, the propylene glycol may be from about 2 mass% to about 4 mass%. Within this range, the lifetime or effectiveness of the chemical adsorbent can be maintained for a long period of time.

Based on the total mass of the tobacco filters 21, 22 and 23, the chemical adsorbent may be included in an amount of 0.001 mass% to 8 mass%. Within this range, the hardness of the cigarette filters 21, 22, 23 can be maintained at an appropriate level, the filtering function against various harmful components of the cigarette filters 21, 22, 23 can be optimized, Hardness, whiteness, smudgeability, taste of tobacco and the like, and at the same time, the performance of removing the carbonyl compound can be improved.

Generally, when a cigarette filter is manufactured from a bundle of fiber strands, the hardness of the cigarette filter is low so that the filter can be put on the drum in the filter manufacturing process or the cigarette manufacturing process. Therefore, the cigarette filter 21, 22, 23 according to the embodiment needs to maintain the hardness of the cigarette filter at a certain level. The cigarette filter 21, 22, 23 according to the embodiment includes the chemical adsorbent in the range of 0.001 mass% to 8 mass% To about 93% of the hardness can be maintained.

The cigarette filters 21, 22, and 23 may further include a plasticizer. For example, when the tobacco filter 21, 22, 23 comprises a tow that is a bundle of fiber strands, the hardness can be improved by using a plasticizer. The plasticizer can improve the hardness of the cigarette filters 21, 22 and 23 by partially melting or plasticizing the fibers themselves to form junctions between the fibers.

The plasticizer can be, for example, triethyl citrate (TEC) or triacetin, and when the plasticizer is contacted with water, the acid acceptor can be expressed so that the chemical adsorbent does not contain water have.

The tobacco filters 21, 22, and 23 according to the embodiments may be manufactured by mixing a chemical adsorbent and a plasticizer to prepare a mixed solution, and then spraying the mixed solution onto the tow. In the case of a cigarette filter containing only a conventional physical adsorbent, it is necessary to separately include a step of dispersing a physical adsorbent in a tow. However, according to the embodiment, a solution containing a plasticizer and a chemical adsorbent at the same time So that the manufacturing cost can be reduced and the economical efficiency can be improved.

However, an emulsifier may be applied to the mixed solution in order to improve the layer separation phenomenon, and the tobacco filters 21, 22 and 23 ) May contain an emulsifier.

The emulsifier may include, for example, at least one of a fatty acid carboxyl-based compound, a sorbitan ester-based compound, a sorbate-based compound, or an ethoxy-based compound .

Due to the application of the emulsifier, the layer separation phenomenon of the mixed solution can be minimized, and the mixed solution can be maintained for about 7 days or more without viscosity change or color development. When the layer separation phenomenon of the mixed solution is minimized, the chemical adsorbent can be uniformly dispersed in the tow as the mixed solution is sprayed on the tow.

FIG. 5A is a photograph of a solution containing only a chemical adsorbent and a plasticizer, and FIG. 5B is a photograph of a mixed solution according to an embodiment. 5B, the mixed solution contained in the left container contains about 10 mass% of the chemical adsorbent, the mixed solution contained in the middle container contains about 20 mass% of the chemical adsorbent, and the mixture contained in the right container The solution contains about 30% by mass of the chemical adsorbent.

Referring to FIG. 5A, it can be seen that in the case of a solution containing only an emulsifier and containing only a chemical adsorbent and a plasticizer, a layer separation occurs as a transparent layer and an opaque layer.

On the other hand, referring to FIG. 5B, it can be seen that the separation solution does not occur when the content of the chemical adsorbent is about 10% by mass to about 30% by mass in the mixed solution containing the emulsifier.

From this, it can be seen that the emulsifier can minimize the layer separation phenomenon, which can increase the lifetime of the mixed solution.

Also, when the above-described emulsifier materials are applied to a mixed solution, viscosity can be maintained without change, and discoloration of the mixed solution can be minimized.

When the tobacco filter 21, 22, 23 comprises both a chemical adsorbent, a plasticizer, and an emulsifier, the chemical adsorbent is from about 10 mass% to about 30 mass%, based on the total mass of the chemical adsorbent, plasticizer and emulsifier, The plasticizer may be from about 65 mass% to about 85 mass%, and the emulsifier may be from about 1 mass% to about 15 mass%. Within this range, the removal performance for the carbonyl compound can be lubricated, the degradation of the hardness of the tobacco filters 21, 22, 23 can be minimized, and the layer separation phenomenon that may occur in the mixed solution sprayed on the tow And the chemical adsorbent can be uniformly dispersed in the entire region of the tow.

The above-described chemical adsorbent may be uniformly dispersed in the first tobacco filter 21 in the mono filter structure shown in Fig. The chemical adsorbent also includes a second cigarette filter 22 (mouth-end filter) contacting the mouth of the user in the multi-filter structure of Fig. 3 and a third cigarette filter 23 , Each nodule filter, and a tobacco end filter, or may be dispersed in both the second and third cigarette filters 22 and 23.

When a physical adsorbent such as activated carbon is applied to a cigarette filter, the adsorbent component may be transferred to the smoker's mouth or the color of the filter may be changed to black, so that the physical adsorbent can not be applied to the mono filter, end of the filter. On the other hand, the chemical adsorbent according to the embodiment can be applied to the mono filter 21 and also to the second tobacco filter 22 located at the bend in the multiple filter.

The tobacco filter may simultaneously contain a chemical adsorbent and a physical adsorbent, and in this case, the removal performance of the carbonyl compound may be further improved. The tobacco filter may have a multi-filter structure, the chemical adsorbent may be dispersed in at least one of the multiple filters, and the physical adsorbent may be dispersed in the tobacco filter adjacent to the toes of the tobacco out of the plurality of filters. 3, the chemical adsorbent may be included in at least one of the second tobacco filter 22 or the third tobacco filter 23, and the physical adsorbent may be contained in the third tobacco filter 23, As shown in FIG.

Here, the physical adsorbent may include at least one of activated carbon, activated carbon fiber, zeolite, ion exchange resin, or silica gel.

In addition, the cigarette filters 21, 22 and 23 may comprise other necessary substances such as flavorings.

In this specification, the case where the toe included in the cigarette filter portion 20 is cylindrical is described, but the tow may have a sheet form (not shown). The above-described chemical adsorbents, plasticizers, and emulsifiers can be equally applied to tows in sheet form.

Hereinafter, a method of manufacturing a cigarette filter will be described. The contents overlapping with those described above may be omitted.

The method for producing the cigarette filters 21, 22 and 23 according to the embodiment comprises the steps of preparing a liquid chemical sorbent, preparing a mixed solution by mixing at least one of a plasticizer and an emulsifier with a liquid chemical sorbent, And spraying the prepared mixed solution.

Prior to the step of preparing the liquid chemical sorbent, a step of preparing the polymer material may be performed.

The polymer material (see Chemical Formula 1) can be prepared by the following reaction formula. In this case, the polymer material may be a copolymer produced by reductive amination of glycerin with a guanidine derivative such as aminoguanidine hydrochloride. The reductive amination reaction can proceed through heating.

[Reaction Scheme 1]

Here, the glycerin can function to control the molecular weight of the polymer material not to be excessively large, and due to the glycerin-based copolymerization reaction, at least a part of the polymer material can be an oligomer.

Subsequently, a step of preparing a liquid chemical adsorbent is carried out.

The liquid chemical sorbent may comprise a polymeric material, glycerin, glucose and propylene glycol, wherein the polymeric material is from about 15 mass% to about 25 mass% based on the total liquid chemical sorbent, and the glycerin is from about 70 mass% About 80% by weight of glucose, about 2% to about 4% by weight of glucose, and about 2% to about 4% by weight of propylene glycol.

Thereafter, a step of mixing a liquid chemical adsorbent with a plasticizer and / or an emulsifier to prepare a mixed solution is carried out.

The plasticizer may be triethyl citrate or triacetin, and the emulsifier may include at least one of a fatty acid carboxyl compound, a sorbitan ester compound, a solvate compound, or an ethoxystearate compound.

When the mixed solution contains both a chemical adsorbent, a plasticizer and an emulsifier, the chemical adsorbent is about 10 mass% to about 30 mass% based on the total mass of the mixed solution, the plasticizer is about 65 mass% to about 85 mass% And the emulsifier may be from about 1% to about 15% by weight.

Next, a step of spraying the mixed solution prepared in the tow is carried out.

In the case of a cigarette filter containing only a conventional physical adsorbent, it is necessary to separately include a step of dispersing a physical adsorbent in a tow. However, according to the embodiment, a conventional chemical adsorbent spraying process is not performed, And the chemical adsorbent are sprayed to the tow at the same time, the manufacturing cost can be reduced and the economical efficiency can be improved.

The spray may be, for example, of a brush type, but is not limited thereto, and various spraying methods can be utilized.

The spraying process can be carried out in such a way that the mixed solution is evenly distributed over all regions of the tow. A chemical adsorbent component is disposed between the fiber strands of the tow to remove material such as formaldehyde.

The liquid chemical adsorbent can be dried at room temperature without a separate heating step, thereby eliminating the need for a separate drying step and thus reducing manufacturing costs.

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to Examples. However, the following Examples are merely examples of the present invention, but the present invention is not limited to the following Examples.

Example 1

Aminoguanidine hydrochloride and glycerin are mixed and heated to prepare a polymer material having a molecular weight of about 29000 and represented by the following formula.

Then, a liquid chemical adsorbent is prepared by mixing about 20 mass% of the prepared polymer substance, about 74 mass% of glycerin, about 3 mass% of glucose, and about 3 mass% of propylene glycol.

Experimental Example  1-formaldehyde Removability  evaluation

The liquid chemical sorbent according to Example 1 was continuously exposed (contacted) with formaldehyde to evaluate the formaldehyde removal ability. The results are shown in FIG. At this time, the test temperature was about 21 ° C and the relative humidity was about 50%.

Referring to FIG. 4, the chemical adsorbent showed a continuous formaldehyde removal effect over time, and the decomposition rate was measured to be about 31 / / m ² h.

Example  2

About 20 mass% of a liquid chemical sorbent prepared according to Example 1, about 75 mass% of a plasticizer triethyl citrate, and about 5 mass% of a fatty acid carboxyl emulsifier are mixed to prepare a mixed solution.

Example  3

The liquid mixed solution prepared in Example 2 was sprayed to a cellulose acetate tow of a mono structure in a brush type (acid type, Hauni-type) and dried at room temperature. At this time, the tow before the mixed solution was sprayed had a fiber of about 2.7 deniers in the tow, a fiber bundle contained in the tow of about 35000 denier, a finished filter length of about 108 mm, About 460 mmH ₂ O, and the circumference (circumference) is about 24.2 mm.

Next, a tobacco filter is manufactured by wrapping the tow with a filter paper having a porosity of 24K. At this time, based on the total mass of the cigarette filter, the content of the mixed solution is about 8 mass%.

Comparative Example  One

A tobacco filter was prepared in the same manner and under the same conditions as in Example 3, except that the tow of mono structure was sprayed with triethyl citrate, which is a plasticizer, as a brush type and dried. At this time, the content of the plasticizer is about 8 mass% based on the total mass of the cigarette filter.

Experimental Example  2 - Comparison of physical properties

The results of comparing the physical properties of the cigarette filter of Comparative Example 1 and the cigarette filter of Example 3 are summarized in Table 1 below.

Sample Won-ju
(mm) Suction resistance
(mmH ₂ O) Roundness
(%) Hardness
(%) Whiteness Comparative Example 1 24.2 + 0.04 457 ± 10 97 ± 0.4 92 ± 1.0 70.9 Example 3 24.2 + 0.04 465 ± 10 97 ± 1.2 83 ± 1.5 70.9

Referring to Table 1, the physical properties of the cigarette filter according to Example 3 and the cigarette filter according to Comparative Example 1 are similar. However, the hardness of the cigarette filter according to the third embodiment is relatively low compared to the hardness of the cigarette filter according to the first comparative example, but it is a slight difference that does not affect the workability.

Experimental Example 3 - Carbonyl transfer amount and removal ability comparison

Table 2 and Table 3 show the results of comparison of the migration amount and the removal ability of the tobacco filter according to Comparative Example 1 and the carbonyls of the tobacco filter according to Example 3 under HC smoking conditions.

Sample Formaldehyde Acetaldehyde Acetone
Acrolein Propionaldehyde Crotonaldehyde MEK Butyraldehyde Comparative Example 1 77.0 1353.9 520.0 143.3 120.6 37.1 156.0 81.0 Example 3 53.8 1352.8 519.8 149.9 119.6 42.0 161.0 82.7

Sample Formaldehyde Acetaldehyde Acetone
Acrolein Propionaldehyde Crotonaldehyde MEK Butyraldehyde Comparative Example 1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Example 3 30.1 0.1 0.0 -4.6 0.8 -13.1 -3.2 -2.1

In Table 2, the unit of each migration amount is / / cigarette, and in Tables 2 and 3, MEK means Methyl Ethyl Ketone.

Referring to Tables 2 and 3, it can be seen that the transfer amount of the formaldehyde component of the cigarette filter according to Example 3 was greatly reduced compared to the transfer amount of the formaldehyde component of the cigarette filter according to Comparative Example 1, The removal ability of the formaldehyde component of the cigarette filter was improved by about 30% or more.

Example  4

(ME) tow of a double-layered cellulose acetate tow comprising a mouth end and a toe end end (ME) tow and a tobacco end (TE) tow, the liquid mixed solution prepared in Example 1 was applied to a brush type Hauni-type) and dried at room temperature.

On the other hand, trihexyl citrate, which is a plasticizer, is sprayed and dried in a brush type on each of the first (TE) tows of the double-structure tows.

At this time, the tow before the mixed solution was sprayed had a fiber of about 2.7 deniers in the tow, a fiber bundle contained in the tow of about 35000 denier, a finished filter length of about 108 mm, About 460 mmH ₂ 0, and the circumference (circumference) is about 24.2 mm.

Next, the tobacco filter is manufactured by wrapping the bent tow and each soot tow with a filter paper having a porosity of 24K. At this time, the content of the mixed solution is about 8% by mass based on the total mass of the bending filter, and the content of the plasticizer is about 8% by mass based on the total mass of the respective primary filter.

Example  5

(ME) tow and an angular forefoot (TE) tow in a double-layered cellulose acetate tow comprising a Mouth End (ME) tow and a Tobacco End (TE) Is sprayed with a brush type (Sanjo method, Hauni-type) and dried at room temperature.

At this time, the tow before the mixed solution was sprayed had about one denier of fibers contained in the tow, about 35,000 deniers of fiber bundles contained in the tow, and the finished filter had a length of about 108 mm, The suction resistance is about 460 mmH ₂ 0, and the circumference (circumference) is about 24.2 mm.

Next, the tobacco filter is manufactured by wrapping the bent tow and each soot tow with a filter paper having a porosity of 24K. At this time, the content of the mixed solution is about 8% by mass based on the total mass of the bending filter, and the content of the mixed solution is about 8% by mass based on the total mass of each of the preliminary filters.

Comparative Example  2

Except for the spraying of triethyl citrate, a plasticizer, on the bend tow and each soot tow in a double structure tow containing a Mouth End (ME) tow and a Tobacco End (TE) tow, A tobacco filter was prepared by the same method and conditions as in Example 5. At this time, the plasticizer content is about 8 mass% based on the total mass of the bending filter, and the plasticizer content is about 8 mass% based on the total mass of each preliminary filter.

Experimental Example  4 - Comparison of physical properties

Table 4 compares the properties of the cigarette filter according to Comparative Example 2, the cigarette filter according to Embodiment 4, and the cigarette filter according to Embodiment 5 in the following Table 4.

Sample Won-ju
(mm) Suction resistance
(mmH ₂ O) Roundness
(%) Hardness
(%) Whiteness Comparative Example 2 24.2 ± 0.03 466 ± 10 96 ± 1.0 91 ± 1.1 69.7 Example 4 24.2 + 0.04 470 ± 10 96 ± 1.1 91 ± 1.2 68.0 Example 5 24.2 ± 0.03 468 ± 10 96 ± 1.0 91 ± 1.0 68.8

Referring to Table 4, the physical properties of the cigarette filter according to Examples 4 and 5 and the properties of the cigarette filter according to Comparative Example 2 are very similar.

Experimental Example  5 - Carbonyls  And Removability  compare

In the HC smoking conditions, the results of comparison between the migration amount and the removal ability of the tobacco filter according to the comparative example 2, the tobacco filter according to the example 4, and the carbonyls of the tobacco filter according to the example 5 are shown in the following Tables 5 and 6, Table 6 shows the results.

Sample Formaldehyde Acetaldehyde Acetone
Acrolein Propionaldehyde Crotonaldehyde MEK Butyraldehyde Comparative Example 2 79.4 1267.2 462.6 142.1 110.7 33.3 137.4 72.3 Example 4 64.3 1052.8 466.3 111.7 94.0 30.7 143.5 69.5 Example 5 43.5 1041.7 488.7 123.3 94.1 29.3 148.3 68.8

Sample Formaldehyde Acetaldehyde Acetone
Acrolein Propionaldehyde Crotonaldehyde MEK Butyraldehyde Comparative Example 2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Example 4 19.0 16.9 -0.8 21.4 15.1 7.8 -4.4 3.9 Example 5 45.1 17.8 -5.6 13.3 15.0 11.8 -8.0 4.9

In Table 5, the unit of each transfer amount is / / cigarette, and in Tables 5 and 6, MEK means Methyl Ethyl Ketone.

Referring to Table 5 and Table 6, it can be seen that the amount of transfer of the carbonyls of the tobacco filter of Example 4, in which the mixed solution containing the chemical adsorbent was applied only to the bend, was substantially reduced compared to the amount of transfer of the carbonyls according to Comparative Example 2 Can be seen. In addition, it can be seen that the amount of transfer of the carbonyls of the tobacco filter of Example 5, in which the mixed solution containing the chemical adsorbent is applied to both the bend and each of the cores, is substantially reduced compared to the transfer amount of the carbonyls according to Comparative Example 2 have.

Particularly, in the case of the formaldehyde component, the migration amount was greatly reduced in the cigarette filter according to Example 5, and the removing ability of the formaldehyde component was improved by about 45% or more.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: Tobacco 10: Tobacco crust
11: Tobacco orchid 17: Coating composition
18: Coating portion 19: Cigarette paper
20: a cigarette filter section 21: a first filter section
22: second filter portion 23: third filter portion
28: Tobacco filter wrapper 29: Tip paper

Claims (18)

A polymeric substance represented by the following Chemical Formula 1, a chemical adsorbent containing glycerin, glucose, and propylene glycol is dispersed,
[Chemical Formula 1]

(In the above formula (1), n is 2 to 300)
A tobacco filter to remove carbonyl compounds contained in cigarette smoke.
The method of claim 1,
Wherein at least a portion of the polymeric material is an oligomer.
The method of claim 1,
Wherein the polymer material is 15 mass% to 25 mass%, the glycerin is 70 mass% to 80 mass%, the glucose is 2 mass% to 4 mass%, and the propylene glycol Is 2% by mass to 4% by mass.
The method of claim 1,
Wherein the cigarette filter further comprises at least one of a plasticizer or an emulsifier.
5. The method of claim 4,
Wherein the chemical adsorbent is 10 mass% to 30 mass% based on the total mass of the chemical adsorbent, the plasticizer, and the emulsifier when the tobacco filter includes the chemical adsorbent, the plasticizer, and the emulsifier, The plasticizer is 65% by mass to 85% by mass, and the emulsifier is 1% by mass to 15% by mass.
5. The method of claim 4,
Wherein the plasticizer comprises triethyl citrate or triacetine.
The method of claim 6,
Wherein the emulsifier comprises at least one of a fatty acid carboxyl-based compound, a sorbitan ester-based compound, a sorbate-based compound, or an ethoxy-based compound.
The method of claim 1,
Wherein the chemical adsorbent is 0.001% by mass to 8% by mass based on the total mass of the cigarette filter.
The method of claim 1,
A cigarette filter further comprising at least one of activated carbon, activated carbon fiber, zeolite, ion exchange resin, or silica gel.
Preparing a liquid chemical adsorbent comprising a polymer substance represented by the following formula (1), glycerin, glucose, and propylene glycol;
[Chemical Formula 1]

(In the above formula (1), n is 2 to 300)
Mixing at least one of a plasticizer and an emulsifier with the liquid chemical adsorbent to prepare a mixed solution, and
Spraying the mixed solution onto a tow comprising a fiber bundle
Wherein the cigarette filter comprises a cigarette filter.
11. The method of claim 10,
Wherein the polymer material is 15 mass% to 25 mass%, the glycerin is 70 mass% to 80 mass%, the glucose is 2 mass% to 4 mass%, and the total amount of the liquid chemical adsorbent is 15 mass% to 25 mass% And 2% by mass to 4% by mass of propylene glycol.
11. The method of claim 10,
Wherein the chemical adsorbent is 10% by mass to 30% by mass based on the total mass of the mixed solution when the mixed solution includes the chemical adsorbent, the plasticizer and the emulsifier, and the plasticizer is 65% by mass to 85% By mass, and the emulsifier is 1% by mass to 15% by mass.
11. The method of claim 10,
Wherein the fiber of the tow comprises at least one material selected from the group consisting of cellulose acetate, lyocell, polypropylene, and polylactic acid.
11. The method of claim 10,
Prior to the step of preparing the liquid chemical adsorbent,
Comprising the steps of: mixing a guanidine derivative with glycerin and then copolymerizing the mixture by heating to produce the polymeric material.
The cigarette column portion, and
A cigarette filter portion comprising at least one cigarette filter, the cigarette filter portion being in contact with a portion of the cigarette buttocks,
Lt; / RTI >
A chemical adsorbent comprising a polymer substance represented by the following formula (1), glycerin, glucose, and propylene glycol is dispersed in the tobacco filter,
[Chemical Formula 1]

(In the above formula (1), n is 2 to 300)
Wherein the tobacco filter removes the carbonyl compound contained in the cigarette smoke.
16. The method of claim 15,
Wherein the tobacco filter further comprises at least one of activated carbon, activated carbon fiber, zeolite, ion exchange resin, or silica gel.
17. The method of claim 16,
The activated carbon fiber, the zeolite, the ion exchange resin, or the silica gel is dispersed in the two or more tobacco filters, The cigarette filter includes a cigarette filter adjacent to the cigarette filter.
16. The method of claim 15,
The cigarette filter is in the form of a cylinder or a sheet.

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