阅读说明：本技术 一种降低卷烟烟气中乙酸的方法 (Method for reducing acetic acid in cigarette smoke ) 是由 周骏 徐同广 矫海楠 蒋成勇 芦楠 刘德水 周昭娟 杜国荣 马雁军 白若石 于 2021-08-27 设计创作，主要内容包括：本发明提供一种降低卷烟烟气中乙酸的方法,该方法包括：采用功能性复合卷烟滤棒对卷烟烟气进行过滤的步骤；所述功能性复合卷烟滤棒的添加材料包括选自大孔容硅胶材料、羧甲基修饰壳聚糖和亚油酸修饰纳米硅基氧化物中的多种。本发明提供的方法以功能性复合滤棒形式降低卷烟烟气中乙酸刺激性成分的方法,同时对卷烟成本影响较小。(The invention provides a method for reducing acetic acid in cigarette smoke, which comprises the following steps: filtering the smoke of the cigarette by adopting a functional composite cigarette filter stick; the additive material of the functional composite cigarette filter stick comprises a plurality of materials selected from a large-pore-volume silica gel material, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide. The method provided by the invention reduces the acetic acid irritant component in the cigarette smoke in the form of the functional composite filter stick, and has small influence on the cigarette cost.)

1. A method for reducing acetic acid in cigarette smoke is characterized by comprising the following steps: filtering the smoke of the cigarette by adopting a functional composite cigarette filter stick; the additive material of the functional composite cigarette filter stick comprises a plurality of materials selected from a large-pore-volume silica gel material, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide.

2. The method for reducing acetic acid in cigarette smoke according to claim 1, wherein the additive materials comprise a large pore volume silica gel material, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide.

3. The method for reducing acetic acid in cigarette smoke according to claim 2, wherein the mass ratio of the large-pore-volume silica gel material, the carboxymethyl modified chitosan and the linoleic acid modified nano silicon-based oxide is 16-36: 8-18: 3-6.

4. The method for reducing acetic acid in cigarette smoke according to claim 2 or 3, wherein the amount of the large-pore-volume silica gel material is 24-26 mg/cigarette; the dosage of the carboxymethyl modified chitosan is 12-13 mg/piece; the dosage of the linoleic acid modified nano silicon-based oxide is 4-6 mg/branch.

5. The method for reducing acetic acid in cigarette smoke according to any one of claims 1 to 4, wherein the linoleic acid modified nano silicon-based oxide is linoleic acid modified nano dioxygenSilicon powder is melted; preferably, the preparation of the linoleic acid modified nano silicon-based oxide comprises the following steps: sodium silicate and hydrochloric acid are used as raw materials to carry out precipitation reaction to obtain SiO₂Precipitating the SiO₂Mixing the precipitate with ethanol to obtain alcohol-dispersed SiO₂Sol; then drying and calcining are carried out to obtain nano silicon dioxide powder; adding linoleic acid and the nano silicon dioxide powder into a normal hexane solvent, and carrying out ultrasonic oscillation, stirring reaction, separation, washing and drying to obtain a linoleic acid modified nano silicon-based oxide; preferably, a nonionic surfactant is added to the reaction solution during the precipitation reaction.

6. The method for reducing acetic acid in cigarette smoke according to any one of claims 1 to 4, wherein the carboxymethyl modified chitosan is N, O-chitosan modified by chloroacetic acid; preferably, the preparation of the carboxymethyl modified chitosan comprises: swelling chitosan by using isopropanol, adding 35-45% of sodium hydroxide, and performing alkalization treatment; then adding chloroacetic acid for reaction, and controlling the reaction temperature to be 50-60 ℃; adjusting the pH value of the reaction system to be neutral, adding acetone for precipitation, wherein the mass volume ratio of isopropanol, chitosan, sodium hydroxide and chloroacetic acid is 100-200 mL: 10-20 g: 50-150 mL: 15-20 g; washing and drying to obtain the carboxymethyl modified chitosan.

7. The method for reducing acetic acid in cigarette smoke according to any one of claims 1 to 4, wherein the macroporous silica gel material is a mesoporous structure macroporous silica gel material; preferably, the specific surface area of the large-pore-volume silica gel material is 387m²In terms of/g, the mean pore diameter is 8.9 nm.

8. The method for reducing acetic acid in cigarette smoke according to any one of claims 1 to 7, wherein the functional composite cigarette filter stick is obtained by compounding a feed cigarette filter stick and a pure acetate cigarette filter stick, and the feed cigarette filter stick is filled with the additive material.

9. The method for reducing acetic acid in cigarette smoke according to claim 8, wherein the length ratio of the feed cigarette filter stick to the pure acetate fiber cigarette filter stick is 1-2.5: 1, preferably 1.5-2: 1.

10. the method for reducing acetic acid in cigarette smoke according to any one of claims 1 to 9, wherein the preparation step of the functional composite cigarette filter stick comprises the following steps: adding a large-pore-volume silica gel material, carboxymethyl-modified chitosan and linoleic acid-modified nano silicon-based oxide into a cigarette bundle in proportion to obtain a cigarette filter stick with the added material, and then compounding the cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick; preferably, the method also comprises the step of mixing the linoleic acid modified nano silicon-based oxide with glycerol triacetate.

Technical Field

The invention relates to the field of cigarette smoke adsorption, in particular to a method for reducing acetic acid in cigarette smoke.

Background

The sensory quality evaluation of the cigarette by the smoker is carried out by evaluating the comprehensive reflecting effect of the smoke generated after the cigarette is burnt, namely, the aroma components in the smoke generated after the cigarette is burnt, on the feeling of the smoker. The function of the oral cavity during smoking evaluation is to judge the irritation (pungency degree) of the smoke, roughness or fineness, hardness or softness of the smoke, thickness or lightness of the smoke, plumpness and aftertaste of the smoke. The cigarette evaluation depends on the throat, and the throat has the functions of judging the irritation of smoke (when the smoke flows to the front edge of the throat) and the strength of the smoke (when the smoke passes through the throat).

The sensory quality of cigarettes is closely related to the types and concentrations of chemical components in smoke, the taste is related to the threshold value of the chemical components, the types of compounds distributed in gas phase and particle phase substances of aerosol of the smoke of the cigarettes are thousands, the composition and the content of the compounds have important influence on the sensory quality of the cigarettes, certain cigarettes often generate unpleasant sourness, bitterness, pungency, astringency and the like, researches show that substances such as volatile carbonyl compounds, phenolic compounds, ammonia and the like with low molecular weight in the smoke have stimulating effect, non-volatile organic acid has strong pungency, burning and rancidity at higher concentration, and the substances stimulate taste acceptance and sensory nerves of oral cavities and stimulate sensory nerve endings and have negative effect on the sensory quality of the cigarettes. The acetic acid has strong pungent and pungent odor, and strong irritation and obvious miscellaneous gas appear on the sensory quality of cigarette mainstream smoke.

With the change of cigarette consumption habits and related requirements, the cigarette product has lower irritation, mellow taste and clean aftertaste, the market share of the cigarette product pursuing comfort is continuously expanding and firming, and the research and the improvement of the development technology of comfortable cigarettes are increasingly important. How to maintain and improve the sensory comfort of the cigarette and understand which chemical components have important influence on the sensory comfort, the chemical components with adverse influence can be selectively reduced. At present, few adsorption materials are added into filter sticks, and the adsorption materials and the undesirable ingredients in the cigarette taste can be subjected to physical or chemical adsorption, so that the problem that the undesirable ingredients in the taste enter the oral cavity of a smoker is reduced. The requirement of reducing acetic acid in cigarette smoke in the form of a composite functional filter stick is an important subject to be solved urgently in the industry at present.

Disclosure of Invention

The invention provides a method for reducing acetic acid in cigarette smoke. The method provided by the invention reduces the acetic acid irritant component in the cigarette smoke in the form of the specific functional composite filter stick, and has small influence on the cigarette cost.

The invention provides a method for reducing acetic acid in cigarette smoke, which comprises the following steps: filtering the smoke of the cigarette by adopting a functional composite cigarette filter stick; the additive material of the functional composite cigarette filter stick comprises a plurality of materials selected from a large-pore-volume silica gel material, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide.

According to the method for reducing acetic acid in cigarette smoke, provided by the invention, the additive materials comprise a large-pore-volume silica gel material, carboxymethyl-modified chitosan and linoleic acid-modified nano silicon-based oxide. In the invention, the adsorption of acetic acid can be realized from multiple aspects by adopting the additive material, and particularly, the physical adsorption and chemical adsorption of acetic acid components between the macroporous silica gel material and the carboxymethyl modified chitosan material are realized, so that the adsorption performance of the material is synergistically exerted.

According to the method for reducing acetic acid in cigarette smoke, the mass ratio of the large-pore-volume silica gel material, the carboxymethyl modified chitosan and the linoleic acid modified nano silicon-based oxide is 16-36: 8-18: 3-6. According to the invention, by adopting the proportion, materials with different pore diameters and functional groups can better play the physical adsorption and chemical adsorption roles, so that the concentration of an irritant component acetic acid in cigarette smoke is obviously reduced.

According to the method for reducing acetic acid in cigarette smoke, the dosage of the large-pore-volume silica gel material is 24-26 mg/cigarette; the dosage of the carboxymethyl modified chitosan is 12-13 mg/piece; the dosage of the linoleic acid modified nano silicon-based oxide is 4-6 mg/branch.

According to the invention, a large-pore-volume silica gel material with a rich mesoporous structure, carboxymethyl-modified chitosan with rich functional groups and linoleic acid-modified nano silicon-based oxide are added into a filter stick according to a certain proportion to be processed into a functional composite filter stick, and the functional filter stick is applied to a mixed type cigarette, wherein the added material in the functional filter stick has a rich mesoporous structure and polar functional groups, so that the irritation component in the smoke of the mixed type cigarette can be effectively reduced, the smoke is fine and smooth, and the smoothness is enhanced; meanwhile, the miscellaneous gas is reduced, the purity of the cigarette aroma is increased, and the improvement and the promotion of the smoke smell of the blended type cigarette are realized.

According to the method for reducing acetic acid in cigarette smoke, the linoleic acid modified nano silicon-based oxide is linoleic acid modified nano silicon dioxide powder; preferably, the preparation of the linoleic acid modified nano silicon-based oxide comprises the following steps: sodium silicate and hydrochloric acid are used as raw materials, 1-5% of nonionic surfactant is added into reaction liquid, and SiO is formed through precipitation reaction₂And (4) precipitating. Mixing SiO₂Mixing the precipitate with an amount of ethanol to form alcohol-dispersed SiO₂Drying, calcining at high temperature to obtain nano SiO₂And (3) powder materials. Adding a certain amount of linoleic acid and nano SiO into the normal hexane solvent₂Powder is ultrasonically oscillated and stirred at 60 ℃ to react for 4 hours. Separating, washing, airing and vacuum drying the obtained product to obtain white powder, namely the linoleic acid modified nano silicon-based oxide. The specific surface area of the obtained linoleic acid modified nano silicon-based oxide is 278m²The pore size distribution range is 0.5-95 nm.

According to the method for reducing acetic acid in cigarette smoke, provided by the invention, the carboxymethyl modified chitosan is N, O-chitosan modified by chloroacetic acid; preferably, the preparation of the carboxymethyl modified chitosan comprises: swelling chitosan by using isopropanol, adding 35-45% of sodium hydroxide, and performing alkalization treatment; then adding chloroacetic acid for reaction, and controlling the reaction temperature to be 50-60 ℃; adjusting the pH value of the reaction system to be neutral, adding acetone for precipitation, wherein the mass-volume ratio of isopropanol, chitosan, sodium hydroxide and chloroacetic acid is 100-200 mL: 10-20 g: 50-150 mL: 15-20 g; washing and drying to obtain the carboxymethyl modified chitosan.

According to the method for reducing acetic acid in cigarette smoke, provided by the invention, the macroporous silica gel material is a mesoporous structure macroporous silica gel material; preferably, the specific surface area of the large-pore-volume silica gel material is 387m²In terms of/g, the mean pore diameter is 8.9 nm.

According to the invention, the specific addition materials, especially the macroporous silica gel material, the carboxymethyl modified chitosan and the linoleic acid modified nano silicon-based oxide under the parameters, can better perform physical adsorption and chemical adsorption, and have a synergistic effect on the aspect of adsorbing irritant components, so that the concentration of the irritant component acetic acid in the smoke is obviously reduced.

According to the method for reducing acetic acid in cigarette smoke, the functional composite cigarette filter stick is obtained by compounding a feed cigarette filter stick and a pure acetate fiber cigarette filter stick, and the additive material is filled in the feed cigarette filter stick.

According to the method for reducing acetic acid in cigarette smoke, the length ratio of the additive cigarette filter stick to the pure acetate fiber cigarette filter stick is 1-2.5: 1, and preferably 1.5-2: 1.

According to the method for reducing acetic acid in cigarette smoke, the preparation steps of the functional composite cigarette filter stick comprise: adding a large-pore-volume silica gel material, carboxymethyl-modified chitosan and linoleic acid-modified nano silicon-based oxide into a cigarette bundle in proportion to obtain a cigarette filter stick with the added material, and then compounding the cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick; preferably, the method also comprises the step of mixing the linoleic acid modified nano silicon-based oxide with glycerol triacetate. According to the invention, the cigarette filter stick is arranged into the two-section type composite structure of the feeding section and the pure acetate fiber section, and by adopting the method, the better effect of selectively reducing the target irritant component in the smoke can be realized through the interaction of different functional materials.

The invention also provides application of the functional composite filter stick for reducing acetic acid in cigarette smoke in conventional cigarettes and medium-grade cigarettes.

The invention has the beneficial effects that: the composite additive material of the functional composite filter stick adopted by the method has the advantages of no toxicity, no harm, sufficient source, simple process flow, convenient manufacture and low cost; based on the pore size difference and the surface functional group of the material, molecular compounds with different sizes and properties can be selectively adsorbed, adsorption materials with different pore sizes and surface functional groups are designed, the influence of the material on the release amount of adverse sensory components in cigarette smoke is researched, and the selection and application combination of the material in the cigarette filter stick is optimized. Has great significance for reasonably utilizing the raw and auxiliary materials of the cigarettes, properly selecting the processing technological parameters and improving the sensory quality of the cigarettes. The adding process in the filter stick is simple, the existing cigarette production process is not required to be changed, and auxiliary equipment is not required to be added; can selectively reduce the irritant components in the main stream smoke of the cigarette, can keep the original style of the cigarette unchanged, improves and enhances the taste quality to a certain extent, meets the physiological requirements of consumers and enhances the competitiveness of products.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a functional composite cigarette filter stick in embodiment 1 of the invention;

fig. 2 is a schematic structural diagram of a functional composite cigarette filter stick in embodiment 2 of the invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention. The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications.

In the present invention, the instruments and the like used are conventional products which are purchased from regular vendors, not indicated by manufacturers. The process is conventional unless otherwise specified, and the starting materials are commercially available from the open literature. The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications.

The embodiment of the invention provides a method for reducing acetic acid in cigarette smoke, which comprises the following steps: mixing a large-pore-volume silica gel material and carboxymethyl modified chitosan according to a certain proportion, adding the mixture into a filter stick tow by a dry method, dispersing linoleic acid modified nano silicon-based oxide into a tow plasticizer triacetin, adding the mixture into the filter stick tow by a wet method to obtain a fed cigarette filter stick, then compounding the fed cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick, and applying the composite filter stick to conventional cigarettes and medium cigarettes to reduce the concentration of an irritant component acetic acid in cigarette smoke.

In the embodiment of the invention, the used linoleic acid modified nano silicon-based oxide: sodium silicate and hydrochloric acid are used as raw materials to form SiO through precipitation reaction₂Precipitation, preferably by adding a nonionic surfactant (5% Triton X-100) to the reaction mixture to control the particle size and dispersibility. Mixing SiO₂Mixing the precipitate with ethanol at a mass-to-volume ratio of 10g to 20ml to form alcohol-dispersed SiO₂And (3) sol. After drying, is higher at 550 DEG CThe nanometer silicon-based oxide nanometer SiO is obtained by warm calcination₂And (3) powder. Adding linoleic acid and nano SiO into n-hexane solvent₂Powder (n-hexane, linoleic acid and nano SiO)₂The mass volume ratio of the powder is 1000 ml: 15 ml: 150g), and the powder is ultrasonically oscillated and stirred for reaction. Separating, washing, air drying and vacuum drying the obtained product to obtain white powder, namely the linoleic acid modified nano silicon-based oxide, wherein the specific surface area of the obtained linoleic acid modified nano silicon-based oxide is 278m²The pore size distribution range is 0.5-95 nm, which is similar to that before the modification. In the embodiment of the invention, the nano silicon-based oxide and the linoleic acid modified nano silicon-based oxide with the mass ratio of 1: 2 are preferably dispersed into glycerol triacetate, and the mass ratio of the nano silicon-based oxide to the linoleic acid modified nano silicon-based oxide to the plasticizer is 1: 10.

In the examples of the present invention, the carboxymethyl-modified chitosan: the isopropanol is adopted to swell the chitosan, so that the surface area of the chitosan is increased, and the permeation and expansion of alkali liquor are facilitated; carrying out alkalization treatment by using 40% sodium hydroxide to form an alkalized active center; then adding chloroacetic acid in batches for reaction, and controlling the reaction temperature at 60 ℃; finally, adjusting the pH value of the reaction system to be neutral by using acetic acid or hydrochloric acid, adding acetone for precipitation, wherein the mass-volume ratio of isopropanol, chitosan, sodium hydroxide and chloroacetic acid is 150 mL: 15 g: 100 mL: 18 g; washing with ethanol, methanol, etc. for several times, and oven drying to obtain carboxymethyl modified chitosan.

In the embodiment of the invention, the average pore diameter of the used specific large-pore-volume silica gel material is 8.9nm, the particle size is 60 meshes, and the pore volume is 2 mL/g. In the embodiment of the invention, a large-pore-volume silica gel material, carboxymethyl modified chitosan and glycerol triacetate with dispersed linoleic acid modified nano silicon-based oxide are added into cigarette tows according to a proportion to prepare a feeding cigarette filter stick, and then the feeding cigarette filter stick is compounded with a pure acetate cigarette filter stick to prepare a functional composite cigarette filter stick, and then the functional composite cigarette filter stick is used for preparing a cigarette with obviously reduced irritation component acetic acid.

Example 1

The embodiment of the invention provides a method for reducing acetic acid in cigarette smoke, which comprises the following steps: adding macroporous silica gel, carboxymethyl modified chitosan and glycerol triacetate with dispersed linoleic acid modified nano silicon-based oxide into cigarette tows according to a proportion to prepare a fed cigarette filter rod, and compounding the fed cigarette filter rod with a pure acetate cigarette filter rod to prepare a functional composite cigarette filter rod (the specific structure is shown in figure 1), wherein the length of a feeding section of the fed cigarette filter rod is 15mm, the composite material is a macroporous silica gel, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide composite material, the macroporous silica gel and the carboxymethyl modified chitosan are mixed according to the mass ratio of 3: 1, the application amount of particles (the macroporous silica gel, the carboxymethyl modified chitosan and the linoleic acid modified nano silicon-based oxide) is 3.0 +/-0.6 mg/mm after mixing, the linoleic acid modified nano silicon-based oxide is mixed with the glycerol triacetate according to the ratio of 1: 10, the application amount of the linoleic acid modified nano silicon-based oxide particles is 0.3 +/-0.05 mg/mm, only added in the filter rod section of the cigarette with the additive; the length of the pure acetate fiber filter stick, namely the pure acetate fiber section is 10 mm. The circumference of the functional composite cigarette filter stick is 24.35 +/-0.2 mm (the specific structure is shown in figure 1). After the composite filter stick is processed, the dosage of the large-pore-volume silica gel material in the embodiment is 26 mg/count; the dosage of the carboxymethyl modified chitosan is 13 mg/chitosan; the dosage of the linoleic acid modified nano silicon-based oxide is 6 mg/branch. Then, the functional composite cigarette filter stick is used for manufacturing the cigarette with the obviously reduced irritant ingredient acetic acid, and the embodiment provides a common cigarette with the length of 84mm, wherein the length of the tobacco shred part is 59 mm. The feeding section of the cigarette filter is close to the tobacco shreds, and the pure acetate fiber section of the cigarette filter is arranged at the outer end of the filter. When cigarette smoke passes through the functional composite cigarette filter, the additive materials with different pore-size structures and functional groups can adsorb the irritant component acetic acid in the smoke.

Control 1: in the same procedure, a cigarette manufactured by using a pure acetate fiber filter stick with the same structure as the embodiment and the same cut tobacco was prepared as a control. Compared with the contrast, the release amount of acetic acid in the mainstream smoke of the cigarette adopting the functional composite cigarette filter stick in the embodiment 1 is obviously reduced, and the reduction rate is 19.02%.

TABLE 1 Release amounts and TAV results for example 1 and control 1

Note: taste Activity Value (TAV) ═ C_{Measurement of Release amount}/TPM/C_{Threshold value}Reflecting the contribution of the compound component to the sensory quality of the cigarette, when the value is more than 1, the compound is shown to contribute to the sensory system, and the higher the value is, the greater the contribution is.

Example 2

Adding macroporous silica gel, carboxymethyl modified chitosan and glycerol triacetate dispersed with linoleic acid modified nano silicon-based oxide into cigarette tows according to a proportion to prepare a fed cigarette filter rod, and compounding the fed cigarette filter rod with a pure acetate cigarette filter rod to prepare a functional composite cigarette filter rod (the specific structure is shown in figure 2), wherein the length of a feeding section of the fed cigarette filter rod is 20mm, the composite material is a macroporous silica gel, carboxymethyl modified chitosan and linoleic acid modified nano silicon-based oxide composite material, the macroporous silica gel and the carboxymethyl modified chitosan are mixed according to a mass ratio of 2: 1, the application amount of particles (the macroporous silica gel, the carboxymethyl modified chitosan and the linoleic acid modified nano silicon-based oxide) is 2.0 +/-0.6 mg/mm after mixing, the linoleic acid modified nano silicon-based oxide is mixed with the glycerol triacetate according to a mass ratio of 1: 10, and mixing, the application amount of the linoleic acid modified nano silicon-based oxide particles is 0.3 +/-0.05 mg/mm, and only the linoleic acid modified nano silicon-based oxide particles are added to a filter rod section of the cigarette with the additive; the length of the pure acetate fiber filter stick, namely the pure acetate fiber section is 10 mm. The circumference of the functional composite cigarette filter stick is 21.80 +/-0.2 mm. After the composite filter stick is processed, the dosage of the large-pore-volume silica gel material in the embodiment is 24 mg/count; the dosage of the carboxymethyl modified chitosan is 12 mg/chitosan; the dosage of the linoleic acid modified nano silicon-based oxide is 4 mg/branch. Then, the functional composite cigarette filter stick is used for manufacturing the cigarette with the obviously reduced irritant ingredient acetic acid, and the embodiment provides a common cigarette with the length of 94mm, wherein the length of the tobacco shred part is 64 mm. The feeding section of the cigarette filter is close to the tobacco shreds, and the pure acetate fiber section of the cigarette filter is arranged at the outer end of the filter. When cigarette smoke passes through the functional composite cigarette filter, the additive materials with different pore-size structures and functional groups can adsorb the irritant component acetic acid in the smoke.

Control 2: in the same procedure, a cigarette manufactured by using a pure acetate fiber filter stick with the same structure as the embodiment and the same cut tobacco was prepared as a control. Compared with the contrast, the release amount of acetic acid in the mainstream smoke of the cigarette adopting the functional composite cigarette filter stick in the embodiment 2 is obviously reduced, and the reduction rate is 18.59%.

TABLE 2 Release amounts and TAV results for example 2 and control 2

Note: taste Activity Value (TAV) ═ C_{Measurement of Release amount}/TPM/C_{Threshold value}Reflecting the contribution of the compound component to the sensory quality of the cigarette, when the value is more than 1, the compound is shown to contribute to the sensory system, and the higher the value is, the greater the contribution is.

The acetic acid has strong spicy pungent smell when the concentration is higher, and reflects that stronger pungency and obvious miscellaneous gas appear on the sensory quality of the main stream smoke of the cigarette, which is consistent with the sensory quality evaluation result of the cigarette, and the cigarette adopting the functional composite filter stick has reduced pungency and the miscellaneous gas and aftertaste are superior to those of a control cigarette. By combining the sensory evaluation result of the cigarettes, the use of the functional composite filter stick can obviously reduce the irritation and the miscellaneous gas of the smoke, improve the comfort of the oral cavity and totally does not influence the integral fragrance quantity and the style characteristics of the mixed type cigarettes.

The sensory evaluation of the cigarettes of the examples and the comparative examples was carried out with reference to the tobacco industry standard YC/T138-1998 sensory evaluation methods for tobacco and tobacco products, and the results are as follows:

TABLE 3 sensory evaluation results of cigarettes

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.