CN113633021B - Method for reducing butyric acid in cigarette smoke - Google Patents
Method for reducing butyric acid in cigarette smoke Download PDFInfo
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- CN113633021B CN113633021B CN202110984071.XA CN202110984071A CN113633021B CN 113633021 B CN113633021 B CN 113633021B CN 202110984071 A CN202110984071 A CN 202110984071A CN 113633021 B CN113633021 B CN 113633021B
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- butyric acid
- cigarette filter
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Silicon Compounds (AREA)
Abstract
The invention provides a method for reducing butyric acid in cigarette smoke, which comprises the following steps: a step of filtering cigarette smoke by adopting a functional composite cigarette filter stick; the additive materials of the functional composite cigarette filter stick comprise a plurality of materials selected from macroporous silica gel materials, carbon aerogel and nano silicon-based oxides. The method provided by the invention reduces the butyric acid stimulating ingredient in the cigarette smoke in the form of a functional composite filter stick, and has less influence on the cigarette cost.
Description
Technical Field
The invention relates to the field of cigarette smoke adsorption, in particular to a method for reducing butyric acid in cigarette smoke.
Background
The gas phase and particle phase substances of the cigarette smoke aerosol are distributed with thousands of compound types, and the composition and the content of the compound have important influence on the sensory quality of the cigarettes. The sensory quality evaluation of the cigarettes by the smokers is performed by evaluating the comprehensive reflecting effect of the aroma components in the smoke generated after the cigarettes are burnt on the smokers after the smoke generated after the cigarettes are used by the smokers, namely the aroma components in the smoke generated after the cigarettes are burnt on the feelings of the smokers. Cigarette smoke irritation refers to the slight or obvious discomfort of smoke to the sense, including the degree of irritation to the mouth, throat and nasal cavity. The mouth cavity can judge the irritation (pungency), the roughness or the fineness of the smoke, the hardness or the softness of the smoke, the concentration or the weakness of the smoke, the plumpness and the aftertaste of the smoke, and the throat can also judge the irritation of the smoke and the strength of the smoke when the smoke flows to the front edge of the throat.
The sensory quality of cigarettes is closely related to the type and concentration of chemical components of the smoke, and the taste is also related to the threshold value of the chemical components, wherein the threshold value refers to the lowest concentration of the components, and the smaller the threshold value of one component is, the stronger the sensitivity is. Some cigarettes often generate unpleasant sour taste, bitter taste, spicy taste, astringency and the like, and researches show that the low molecular weight volatile carbonyl compounds, phenolic compounds, ammonia and other substances in smoke cause false heat effect of the palate part of the oral cavity to have a stimulating effect, and the non-volatile organic acids have strong spicy, burnt and rancid smell when the concentration is higher, so that the substances stimulate not only taste receiving and sensory nerves of the oral cavity, but also sensory nerve endings, and have negative effects on the sensory quality of the cigarettes. The butyric acid has strong pungency and bad rancid cream smell, reflects the strong pungency and obvious miscellaneous gas on the sensory quality of the main stream smoke of cigarettes, and has obvious influence on the taste and aroma.
Along with the change of cigarette consumption habit and related requirements, the cigarette product has lower irritation, mellow taste and clean aftertaste, and the market share of the cigarette product pursuing comfort is continuously expanding and stable, and is increasingly important for researching and perfecting the development technology of the comfortable cigarette. How to maintain and improve the sensory comfort of the cigarettes, knows which components have important influence on the sensory comfort, can selectively reduce the chemical components with adverse effects, and is significant for reasonably utilizing the raw and auxiliary materials of the cigarettes, properly selecting the processing technological parameters and improving the smoking quality of the cigarettes. At present, there are few reports that adsorption materials are added into filter sticks, and the adsorption materials and bad components in the cigarette taste can be used for generating physical or chemical adsorption, so as to reduce the bad components in the taste from entering the mouth of a smoker. The need to reduce butyric acid in cigarette smoke in the form of a functional composite filter stick is an important topic to be solved in the industry.
Disclosure of Invention
The invention provides a method for reducing butyric acid in cigarette smoke. The method provided by the invention reduces the butyric acid stimulating component in the cigarette smoke in the form of the special functional composite filter stick, and has small influence on the cigarette cost.
The invention provides a method for reducing butyric acid in cigarette smoke, which comprises the following steps: a step of filtering cigarette smoke by adopting a functional composite cigarette filter stick; the additive materials of the functional composite cigarette filter stick comprise a plurality of materials selected from macroporous silica gel materials, carbon aerogel and nano silicon-based oxides.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the additive material comprises a large pore volume silica gel material, carbon aerogel and nano silicon-based oxide. According to the invention, the adsorption of butyric acid can be realized from multiple angles by adopting the additive material, and especially the synergistic performance of the adsorption material is promoted by the multiple adsorption effects among the large-pore-volume silica gel material, the carbon aerogel and the nano silicon-based oxide material.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the mass ratio of the macroporous silica gel material to the carbon aerogel to the nano silicon-based oxide is 18-36:8-18:3-6. According to the invention, by adopting the proportion, materials with different pore diameters can better exert physical adsorption effect, so that the concentration of the irritating ingredient butyric acid in cigarette smoke is obviously reduced.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the dosage of the macroporous silica gel material is 24-26 mg/cigarette; the dosage of the carbon aerogel is 12-13 mg/branch; the dosage of the 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, carbon aerogel with a rich microporous structure and nano silicon-based oxide are added into a filter rod according to a certain proportion to be processed into a functional composite filter rod, and the functional filter rod is applied to a mixed cigarette, and the additive material in the functional filter rod has a rich mesoporous structure, a microporous structure and polar functional groups, so that the effective reduction of the stimulating components in the smoke of the mixed cigarette is facilitated, the smoke is fine and smooth, and the soft feeling is enhanced; meanwhile, the impurity gas is lightened, the purity of the cigarette aroma is increased, and the improvement and the promotion of the smoke flavor of the mixed type cigarette are realized.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the nano silicon-based oxide is nano silicon dioxide powder; preferably, the preparation of the nano silicon-based oxide comprises the following steps: sodium silicate and hydrochloric acid are used as raw materials, 1 to 5 percent of nonionic surfactant is added into the reaction solution, and the SiO is formed through precipitation reaction 2 And (5) precipitation. SiO is made of 2 Mixing the precipitate with an amount of ethanol to form an alcohol-dispersed SiO 2 Sol, drying and calcining at high temperature to obtain nano SiO 2 Powder material. The specific surface area of the obtained nano silicon-based oxide is 605m 2 And/g, wherein the pore size distribution range is 0.5-95nm.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the carbon aerogel is microporous structure carbon aerogel; preferably, the specific surface area of the carbon aerogel is 976m 2 And/g, the average pore diameter is 12.97nm.
According to the method for reducing butyric 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 macroporous silica gel material is 387m 2 And/g, average pore diameter of 8.9nm.
According to the invention, the specific additive materials are adopted, and particularly the macroporous silica gel material, the carbon aerogel and the nano silicon-based oxide under the parameters can better perform physical adsorption, and have a synergistic effect on the aspect of adsorbing the irritant components, so that the concentration of the irritant component butyric acid in the flue gas is obviously reduced.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the functional composite cigarette filter stick is obtained by compounding a feeding cigarette filter stick and a pure acetate fiber cigarette filter stick, and the feeding cigarette filter stick is filled with the additive material.
According to the method for reducing butyric acid in cigarette smoke provided by the invention, the length ratio of the fed cigarette filter stick to the pure acetate fiber cigarette filter stick is 1-2.5: 1, preferably 1.5 to 2:1.
according to the method for reducing butyric acid in cigarette smoke provided by the invention, the preparation steps of the functional composite cigarette filter stick comprise: adding a large pore volume silica gel material, carbon aerogel and nano silicon-based oxide into a tobacco bundle according to a proportion to obtain a reinforced cigarette filter stick, and then compounding the reinforced cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick; preferably, the method further comprises mixing the nano silicon-based oxide with glyceryl triacetate. According to the invention, the cigarette filter stick is arranged into the two-section composite structure of the feeding section and the pure acetate fiber section, and by adopting the method, better effect of selectively reducing target irritant components in smoke can be achieved cooperatively through interaction of different functional materials.
The invention also provides application of the functional composite filter stick for reducing acetone in cigarette smoke in conventional cigarettes and medium cigarettes.
The invention has the advantages that: the composite additive material raw materials of the functional composite filter stick adopted by the method are nontoxic and harmless, have sufficient sources, simple process flow, convenient manufacture and low cost; based on the pore diameter difference of the materials and the molecular compounds with different sizes and properties can be selectively adsorbed by the surface functional groups, the adsorption materials with different pore sizes and surface functional groups are designed, the influence of the materials on the release amount of bad sensory components in cigarette smoke is researched, and the selection and application combination of the materials in the cigarette filter stick are optimized. The invention utilizes the property that the macroporous silica gel material has abundant mesopores, the abundant micropores of the carbon aerogel material and the abundant hydroxyl functional groups on the surface of the nano silicon-based oxide can adsorb butyric acid, and the adding process of the composite materials in the filter stick is simple, and the existing cigarette production process and auxiliary equipment are not required to be changed. The invention can selectively reduce the pungent components in the main stream smoke of the cigarettes, improve the smoking quality to a certain extent, keep the original style of the cigarettes unchanged, meet the physiological needs of consumers and improve the competitiveness of the products.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will briefly explain the drawings needed in the embodiments or the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural diagram of a functional composite cigarette filter rod in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a functional composite cigarette filter rod in embodiment 2 of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, which are used for illustrating the present invention but are not intended to limit the scope of the present invention. The specific techniques or conditions are not identified in the examples and are described in the literature in this field or are carried out in accordance with the product specifications.
In the present invention, the equipment used and other manufacturers are not identified, and are conventional products which can be purchased by regular channel manufacturers. The methods are conventional methods unless otherwise specified, and the starting materials are commercially available from the public sources unless otherwise specified. The specific techniques or conditions are not identified in the examples and are described in the literature in this field or are carried out in accordance with the product specifications.
In the embodiment of the invention, the used nano silicon-based oxide: sodium silicate and hydrochloric acid are used as raw materials, silicon dioxide precipitate is formed through precipitation reaction, and the particle size and dispersibility are controlled, preferably in the following stepsA nonionic surfactant (5% Triton X-100) was added to the reaction solution. Silica precipitate was combined with ethanol at 10g:20ml of the mixture was mixed in a mass-to-volume ratio to form an alcohol-dispersed silica sol. Drying and calcining at 550 deg.c to obtain nanometer silica-based oxide with specific surface area of 605m 2 And/g, the pore size distribution range is 0.5-95nm. In the embodiment of the invention, the nano silicon-based oxide is uniformly dispersed into the plasticizing preferable glyceryl triacetate according to a proportion. The mass ratio of the nano silicon-based oxide to the plasticizer is 1:10.
In the embodiment of the invention, the carbon aerogel used is: the specific surface area of the carbon aerogel is 976m 2 And/g, the average pore diameter is 12.97nm.
In the embodiment of the invention, the specific surface area of the used large pore volume silica gel material is 387m 2 And/g, average pore diameter of 8.9nm.
According to the embodiment of the invention, a large-pore-volume silica gel material, carbon aerogel and glyceryl triacetate dispersed with nano silicon-based oxide are proportionally added into a tobacco bundle to prepare a feeding cigarette filter rod, then the feeding cigarette filter rod is compounded with a pure acetate fiber cigarette filter rod to prepare a functional composite cigarette filter rod, and then the functional composite cigarette filter rod is used for preparing cigarettes with obviously reduced irritating ingredient butyric acid.
The embodiment of the invention provides a method for reducing butyric acid in cigarette smoke, which comprises the following steps: mixing a large pore volume silica gel material and carbon aerogel according to a certain proportion, adding the mixture into a filter stick tow in a dry method, dispersing nano silicon-based oxide into a tow plasticizer glyceryl triacetate, adding the mixture into the filter stick tow in 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 the irritating ingredient butyric acid in cigarette smoke.
Example 1
The embodiment of the invention provides a method for reducing butyric acid in cigarette smoke, which comprises the following steps:
adding macroporous silica gel, carbon aerogel and glyceryl triacetate dispersed with nano silicon-based oxide into tobacco bundles according to a proportion to prepare a feeding cigarette filter stick, and then compounding the feeding cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick (specific structure is shown in figure 1), wherein the length of the feeding cigarette filter stick, namely a feeding section, is 15mm, the composite material is a macroporous silica gel, carbon aerogel and nano silicon-based oxide composite material, wherein the macroporous silica gel and the carbon aerogel are mixed according to a mass ratio of 3:1, after mixing (the application amount of the macroporous silica gel, the carbon aerogel and the nano silicon-based oxide) particles is 3.0+/-0.6 mg/mm, the nano silicon-based oxide is mixed with the filter stick plasticizer glyceryl triacetate according to a proportion of 1:10, and the application amount of the nano silicon-based oxide particles is 0.3+/-0.05 mg/mm, and the nano silicon-based oxide particles are only added into the feeding cigarette filter stick section; the length of the pure acetate fiber filter stick, namely the pure acetate fiber section, is 10mm. The circumference of the functional composite cigarette filter stick is 24.35+/-0.2 mm (the specific structure is shown in figure 1). After being processed into the composite filter stick, the dosage of the macroporous silica gel material in the example is 26 mg/branch; the dosage of the carbon aerogel is 13 mg/branch; the dosage of the linoleic acid modified nano silicon-based oxide is 6 mg/branch. Then the functional composite cigarette filter rod is used for preparing a cigarette with obviously reduced stimulatory ingredient butyric acid, and the embodiment provides a common cigarette with the length of 84mm, wherein the length of the tobacco shred part is 59mm. The feeding section of the cigarette filter is close to cut tobacco, and the pure acetate fiber section of the cigarette filter is arranged at the outer end of the filter. When the cigarette smoke passes through the functional composite cigarette filter, the additive materials with different pore structures and functional groups can adsorb the irritating component butyric acid in the smoke.
Control 1: in the same manner, cigarettes were produced using the same structure of the pure acetate fiber filter rod and the same tobacco cut filler as in this example as a control. Compared with the control, the release amount of butyric acid in the main stream smoke of the cigarette adopting the functional composite cigarette filter stick of the embodiment 1 is obviously reduced, and the reduction rate is 36.11%.
TABLE 1 Release amount and TAV results for example 1 and control 1
Note that: taste vitality value (Taste Activity Value, TAV) =c Measuring the amount of released /TPM/C Threshold value Reflecting the contribution degree of the compound component to the sensory quality of the cigarette, when the value is more than 1, the compound is indicated to be contributed to the sensory system, and the higher the value is, the greater the contribution is.
Example 2
Adding macroporous silica gel, carbon aerogel and glyceryl triacetate dispersed with nano silicon-based oxide into tobacco bundles according to a proportion to prepare a feeding cigarette filter stick, and then compounding the feeding cigarette filter stick with a pure acetate fiber cigarette filter stick to prepare a functional composite cigarette filter stick (specific structure is shown in figure 2), wherein the length of a feeding section of the feeding cigarette filter stick is 20mm, the composite material is a macroporous silica gel, carbon aerogel and nano silicon-based oxide composite material, wherein the macroporous silica gel and the carbon aerogel are mixed according to a mass ratio of 2:1, after the mixing (the application amount of the macroporous silica gel, the carbon aerogel and the nano silicon-based oxide) particles is 2.0+/-0.6 mg/mm, the nano silicon-based oxide is mixed with the filter stick plasticizer glyceryl triacetate according to a mass ratio of 1:10, and the application amount of the nano silicon-based oxide particles is 0.3+/-0.05 mg/mm, and the nano silicon-based oxide particles are only added into the feeding cigarette filter stick section; the length of the pure acetate fiber filter stick, namely the pure acetate fiber section, is 10mm. The circumference of the functional composite cigarette filter stick is 21.80 plus or minus 0.2mm. After being processed into the composite filter stick, the dosage of the large pore volume silica gel material in the example is 24 mg/branch; the dosage of the carbon aerogel is 12 mg/branch; 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 preparing a cigarette with obviously reduced stimulatory ingredient butyric acid, and the embodiment provides a common cigarette with the length of 94mm, wherein the length of the tobacco shred part is 64mm. The feeding section of the cigarette filter is close to cut tobacco, and the pure acetate fiber section of the cigarette filter is arranged at the outer end of the filter. When the cigarette smoke passes through the functional composite cigarette filter, the additive materials with different pore structures and functional groups can adsorb the irritating component butyric acid in the smoke.
Control 2: in the same manner, cigarettes were produced using the same structure of the pure acetate fiber filter rod and the same tobacco cut filler as in this example as a control. Compared with the control, the release amount of butyric acid in the main stream smoke of the cigarette adopting the functional composite cigarette filter stick in the example 2 is obviously reduced, and the reduction rate is 26.11%.
TABLE 2 Release amount and TAV results for example 2 and control 2
Note that: taste vitality value (Taste Activity Value, TAV) =c Measuring the amount of released /TPM/C Threshold value Reflecting the contribution degree of the compound component to the sensory quality of the cigarette, when the value is more than 1, the compound is indicated to be contributed to the sensory system, and the higher the value is, the greater the contribution is.
The butyric acid has strong pungent and pungent smell when the concentration is higher, and reflects stronger pungency and obvious miscellaneous gas on the sensory quality of the main stream smoke of the cigarette, which is consistent with the evaluation result of the sensory quality of the cigarette, and the cigarette adopting the functional composite filter stick has reduced pungency, miscellaneous gas and aftertaste which are superior to those of the control cigarette. The use of the functional composite filter stick can obviously reduce the irritation and miscellaneous gas of smoke and improve the comfort of the oral cavity by combining the sensory evaluation result of the cigarettes, and the overall aroma and style characteristics of the mixed cigarettes are not influenced.
The present example relates to sensory evaluation of cigarettes in examples and comparative examples, with reference to tobacco industry standard YC/T138-1998, "method for sensory evaluation of tobacco and tobacco products", and the results are as follows:
table 3 sensory evaluation results of cigarettes
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (14)
1. A method for reducing butyric acid in the smoke of a cigarette, comprising: a step of filtering cigarette smoke by adopting a functional composite cigarette filter stick; the functional composite cigarette filter stick comprises a functional composite cigarette filter stick and a functional composite cigarette filter stick, wherein the functional composite cigarette filter stick comprises a large-pore-volume silica gel material, carbon aerogel and a nano silicon-based oxide; the mass ratio of the large-pore-volume silica gel material to the carbon aerogel to the nano silicon-based oxide is 18-36:8-18:3-6.
2. The method for reducing butyric acid in the smoke of cigarettes according to claim 1, wherein the dosage of the macroporous silica gel material is 24-26 mg/piece; the dosage of the carbon aerogel is 12-13 mg/branch; the dosage of the nano silicon-based oxide is 4-6 mg/branch.
3. The method of reducing butyric acid in the smoke of a cigarette according to claim 1, wherein said nano silicon-based oxide is nano silicon dioxide powder.
4. The method for reducing butyric acid in the smoke of cigarettes according to claim 3, wherein the preparation of the nano silicon-based oxide comprises: the sodium silicate and the hydrochloric acid are used as raw materials to carry out precipitation reaction to obtain SiO 2 Precipitating the SiO 2 Mixing the precipitate with ethanol to obtain alcohol-dispersed SiO 2 Sol; and then drying and calcining to obtain the nano silicon dioxide powder.
5. The method for reducing butyric acid in the smoke of cigarettes according to claim 4, wherein a nonionic surfactant is added in the reaction solution during the precipitation reaction.
6. The method for reducing butyric acid in the smoke of cigarettes according to any one of claims 1 to 5, wherein the carbon aerogel is a microporous structure carbon aerogel.
7. The method for reducing butyric acid in the smoke of cigarettes according to claim 6, wherein the specific surface area of the carbon aerogel is 976m 2 /g, average pore size of 12.97. 12.97nm.
8. The method for reducing butyric acid in the smoke of cigarettes according to any one of claims 1 to 5, wherein the macroporous silica gel material is a mesoporous structured macroporous silica gel material.
9. The method for reducing butyric acid in the smoke of cigarettes according to claim 8, wherein the specific surface area of the silica gel material with large pore volume is 387m 2 /g, average pore size of 8.9. 8.9nm.
10. The method for reducing butyric acid in the smoke of cigarettes according to any one of claims 1 to 5, wherein the functional composite cigarette filter is obtained by compositing a feed cigarette filter and a pure acetate cigarette filter, and the additive is filled in the feed cigarette filter.
11. The method for reducing butyric acid in the smoke of cigarettes according to claim 10, wherein the length ratio of the fed cigarette filter rod to the pure acetate fiber cigarette filter rod is 1-2.5: 1.
12. the method for reducing butyric acid in the smoke of cigarettes according to claim 11, wherein the length ratio of the fed cigarette filter rod to the pure acetate fiber cigarette filter rod is 1.5-2: 1.
13. the method for reducing butyric acid in the smoke of a cigarette according to any one of claims 1 to 5, wherein the preparation step of the functional composite cigarette filter rod comprises: adding the macroporous silica gel material, the carbon aerogel and the nano silicon-based oxide into the tobacco bundle according to a proportion to obtain a reinforced cigarette filter stick, and then compounding the reinforced cigarette filter stick with the pure acetate fiber cigarette filter stick to prepare the functional composite cigarette filter stick.
14. The method of reducing butyric acid in the smoke of a cigarette of claim 13, further comprising mixing nano silicon-based oxide with glyceryl triacetate.
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| CN105996122A (en) * | 2016-05-27 | 2016-10-12 | 阜阳卷烟材料厂 | Cigarette filter stick for reducing cigarette aldehyde substances |
| CN106723343A (en) * | 2017-04-06 | 2017-05-31 | 上海烟草集团有限责任公司 | A kind of composite cigarette filter stick for reducing releasing content of coke tar in cigarette and preparation method thereof |
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