CN106723343B - Composite cigarette filter stick capable of reducing tar release amount of cigarettes and preparation method thereof - Google Patents
Composite cigarette filter stick capable of reducing tar release amount of cigarettes and preparation method thereof Download PDFInfo
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- CN106723343B CN106723343B CN201710220976.3A CN201710220976A CN106723343B CN 106723343 B CN106723343 B CN 106723343B CN 201710220976 A CN201710220976 A CN 201710220976A CN 106723343 B CN106723343 B CN 106723343B
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- acetate fiber
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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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- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The invention provides a composite cigarette filter stick for reducing the tar release amount of a cigarette and a preparation method thereof, the composite cigarette filter stick is used for being connected with a cigarette body, the composite cigarette filter stick comprises a first acetate fiber section and a second acetate fiber section, one end of the second acetate fiber section is connected with the first acetate fiber section, the other end of the second acetate fiber section is connected with the cigarette body, an adsorbent is filled in the second acetate fiber section, and the length ratio of the second acetate fiber section to the first acetate fiber section is (3-5): 1. the composite cigarette filter stick obtained by the invention can effectively adsorb particulate phase components in cigarette smoke by adding the adsorbent to the cigarette filter tip part, and reduce the tar release amount of the whole cigarette, thereby reducing the harm of cigarette smoking.
Description
Technical Field
The invention relates to the technical field of tar reduction of tobacco, in particular to a composite cigarette filter stick capable of reducing the tar release amount of cigarettes and a preparation method thereof.
Background
In the face of the multiple pressure of WTO and the world health organization's tobacco control framework treaty' and the continuous attention of people on smoking and health, the improvement of the smoking safety gradually becomes the main target of the continuous survival and development of the tobacco industry, and the tar and harm reduction of cigarettes becomes the direction and trend of the current tobacco industry development.
At present, there are many methods for reducing tar in the tobacco industry, and the common methods are as follows: the method comprises the following steps of filter tip ventilation technology, high-air-permeability cigarette paper technology, tobacco sheet blending technology, expanded cut tobacco and expanded cut stem blending technology, development of heating non-combustion cigarette technology and the like. The above techniques all change the original combustion process of the cigarette, and have certain influence on the original taste of the cigarette. The above techniques need to be improved in one or more of the following ways: 1) a tobacco leaf raw material formula; 2) cigarette production equipment; 3) an auxiliary material production process; these improvements add virtually excessive production costs, resulting in increased cigarette prices.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide the composite cigarette filter stick for reducing the tar release amount of the cigarette and the preparation method thereof.
In order to achieve the above and other related objects, the present invention provides a composite cigarette filter stick for reducing the tar release amount of a cigarette, the composite cigarette filter stick is used for being connected with a cigarette body, the composite cigarette filter stick comprises a first acetate fiber section and a second acetate fiber section, one end of the second acetate fiber section is connected with the first acetate fiber section, the other end of the second acetate fiber section is connected with the cigarette body, an adsorbent is distributed in the second acetate fiber section, and the length ratio of the second acetate fiber section to the first acetate fiber section is (3-5): 1.
preferably, the composite cigarette filter stick contains 1-50 mg/cigarette of the adsorbent.
Preferably, the adsorbent is white carbon black.
More preferably, the adsorbent is silane modified white carbon black.
The silane modified white carbon black can be prepared by performing surface modification on white carbon black through a silane coupling agent, the surface modification is usually surface inert treatment, the adsorption capacity of the white carbon black subjected to the surface inert treatment on components with weaker polarity in cigarette smoke components can be improved, and the silane coupling agent used in the modification process can be any one or more of trimethylethoxysilane, methyltrimethoxysilane, vinyl ethoxysilane, tetrabutoxysilane, hexamethylethylsiloxane, hexamethyldisiloxane and the like.
Preferably, the specific surface area of the adsorbent is 300-1000m2/g。
Preferably, the particle size of the adsorbent is 1 to 10 μm.
Preferably, the mesoporous aperture of the adsorbent is 5-10 nm.
Preferably, the adsorbent is in a uniform distribution.
Preferably, the length of the composite cigarette filter stick is 20-30 mm.
The invention also discloses a method for preparing the composite cigarette filter stick, which comprises the following steps:
a) processing the first acetate fiber section and the second acetate fiber section;
b) and uniformly spraying the adsorbent among the acetate fiber tows in the second acetate fiber section.
Preferably, the first acetate fiber section and the second acetate fiber section are both made of cellulose acetate, and the cellulose acetate is cellulose acetate of a two-acetate spinning grade, so that the composite cigarette filter stick has the advantages of being non-toxic, harmless and safe.
Preferably, the preparation method further comprises the step of subjecting the adsorbent to a surface inert treatment before the step b). According to the invention, the white carbon black is used as the adsorbent, and the surface inert treatment is carried out on the white carbon black, so that the adsorption capacity of the adsorbent on components with weaker polarity in cigarette smoke components is improved.
Preferably, the surface inerting treatment is carried out on the white carbon black by adopting a dry modification process. The dry modification process adopts a fixed reactor or a fluidized bed reactor for reaction, and takes silane coupling agent as a modifier and nitrogen as shielding gas to modify the surface of the white carbon black.
The dry modification process is to adopt dry white carbon black and modifier steam to contact and react in a fixed reactor or a fluidized bed reactor under the condition of high temperature. The method has the main characteristics of simple process, less post-treatment process and easy realization of large-scale production.
More preferably, the conditions of the dry modification process are: the weight ratio of the silane coupling agent to the white carbon black is (0.2-0.4): 1, the pretreatment temperature is 330-370 ℃, the pretreatment time is 8-12min, the reaction temperature is 330-370 ℃, the reaction time is 8-12min, the nitrogen flow rate is 1.4-1.6 m-3/h。
More preferably, the silane coupling agent includes any one or more of trimethylethoxysilane, methyltrimethoxysilane, vinylethoxysilane, tetrabutoxysilane, hexamethylethylsiloxane and hexamethyldisiloxane.
As mentioned above, the composite cigarette filter stick for reducing the tar release amount of the cigarette and the preparation method thereof have the following beneficial effects:
the concept of tar reduction of the filter tip provides a new method and a new way for reducing harm and tar of the cigarette, and greatly promotes the development of tar reduction and tar reduction technology of the cigarette.
Furthermore, the adsorbent is added into the acetate fibers of the cigarette filter stick, so that the tar release amount of the cigarette can be effectively reduced, particularly, the adsorption effect on harmful components with high boiling points in smoke components is remarkable, and the harm is reduced. The adsorbent is white carbon black material which has obvious oil absorption capacity and can effectively adsorb particle phase components in cigarette smoke, so that the tar release amount of the cigarette is reduced.
Furthermore, the adsorbent adopted by the invention is white carbon black, and has the advantages of cheap material, convenience, safety and the like.
Furthermore, the surface inert treatment is carried out on the adsorbent, so that the adsorption capacity of the adsorbent on components with weaker polarity in the cigarette smoke is improved.
Further, the composite cigarette filter stick provided by the invention has no significant influence on the existing cigarette production process, and has the main advantages that: 1) the formula of the tobacco leaf raw materials does not need to be changed; 2) the cigarette production equipment does not need to be modified; 3) the production process of auxiliary materials is not required to be changed; thereby avoiding further increases in production costs.
Drawings
Fig. 1 is a schematic structural diagram of a composite cigarette filter stick for reducing the tar release amount of cigarettes in an embodiment of the invention.
Element number description:
1 first acetate fiber section
2 second acetate fiber section
21 adsorbent
3 cigarette body
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood by referring to fig. 1 that the structures, ratios, sizes, etc. shown in the drawings are only used for understanding and reading the disclosure of the present invention, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, ratio changes or size adjustments should fall within the scope of the present invention without affecting the efficacy and attainment of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Comparative example
Routine cigarette smoke analysis experiment: the contents of Total Particulate Matter (TPM), tar and carbon monoxide (CO) in the smoke are determined according to GB/T19609-2004 smoking machine for routine analysis of cigarettes and GB/T23356-2009 non-scattering infrared method for determination of carbon monoxide in the smoke gas phase of cigarettes, and the specific results are shown in Table 1.
Example 1
As shown in figure 1, the composite cigarette filter stick for reducing the tar release amount of the cigarette is used for being connected with a cigarette body 3 and comprises a first acetate fiber section 1 and a second acetate fiber section 2, one end of the second acetate fiber section 2 is connected with the first acetate fiber section 1, the other end of the second acetate fiber section 2 is connected with the cigarette body 3, wherein the length of the second acetate fiber section 2 is 20mm, and the length of the first acetate fiber section 1 is 5 mm. The second acetate fiber section 2 is added with the white carbon black 21 with inert surface treatment, the adding amount is 0.45mg/mm, and the mass of the white carbon black added in the whole filter stick is 9.0 mg. The white carbon black 21 is uniformly distributed.
The preparation method of the composite cigarette filter stick comprises the following steps: firstly, processing a first acetate fiber section 1 and a second acetate fiber section 2; and then the white carbon black 21 is uniformly sprayed among the acetate fiber tows in the second acetate fiber section 2.
The preparation method of the composite cigarette filter stick is characterized in that the surface inert treatment is carried out on the white carbon black before the step b). And (3) carrying out surface inert treatment on the white carbon black by adopting a dry modification process. The dry method is to adopt dry white carbon black and modifier steam to contact and react in a fixed reactor or a fluidized bed reactor under the condition of high temperature. The method has the main characteristics of simple process, less post-treatment process and easy realization of large-scale production. Carrying out surface inert treatment on the white carbon black, carrying out reaction in a fixed reactor, taking hexamethyldisiloxane as a modifier, taking nitrogen as a protective gas, and carrying out reaction conditions as follows: the weight ratio of the silane coupling agent to the white carbon black is 0.3: 1, the pretreatment temperature is 350 ℃, the pretreatment time is 10min, the reaction temperature is 350 ℃, the reaction time is 10min, and the nitrogen flow is 1.5m-3/h。
Applying the composite cigarette filter stick to the manufacture of cigarettes, and then carrying out a conventional smoke analysis experiment on the cigarettes: the contents of Total Particulate Matter (TPM), tar and carbon monoxide (CO) in the smoke are determined according to GB/T19609-2004 smoking machine for routine analysis of cigarettes and GB/T23356-.
Example 2
A composite cigarette filter stick for reducing the tar release amount of a cigarette is used for being connected with a cigarette body 3 and comprises a first acetate fiber section 1 and a second acetate fiber section 2, one end of the second acetate fiber section 2 is connected with the first acetate fiber section 1, the other end of the second acetate fiber section 2 is connected with the cigarette body 3, wherein the length of the second acetate fiber section 2 is 20mm, and the length of the first acetate fiber section 1 is 5 mm. The second cellulose acetate segment 2 is added with the white carbon black 21 with the surface polarity of SIPERNAT 310, the adding amount is 0.625mg/mm, and the mass of the white carbon black added in the whole filter stick is 12.5 mg. The white carbon black 21 is uniformly distributed.
The preparation method of the composite cigarette filter stick comprises the following steps: firstly, processing a first acetate fiber section 1 and a second acetate fiber section 2; and then the white carbon black 21 is uniformly sprayed among the acetate fiber tows in the second acetate fiber section 2.
Applying the composite cigarette filter stick to the manufacture of cigarettes, and then carrying out a conventional smoke analysis experiment on the cigarettes: total Particulate Matter (TPM) and tar in smoke are measured according to GB/T19609-2004 cigarette general analysis for measuring total particulate matter and tar by a smoking machine, and specific results are shown in Table 1.
TABLE 1 cigarette Smoke analysis results
As can be seen from table 1, the tar release amount and the total particulate matter of the cigarette samples containing the composite cigarette filter rods for reducing the tar release amount of the cigarettes prepared in examples 1 and 2 are lower than those of the conventional cigarettes of the comparative examples. The tar release amount and the total particulate matter are reduced, so that the smoking taste of the cigarette is improved. As can be seen from the data results in Table 1, the tar absorption efficiency of the white carbon black material was 0.22mg (tar)/mg (white carbon black) on average, and the total particulate matter efficiency of the white carbon black material was 0.28mg (total particulate matter)/mg (white carbon black) on average. Therefore, the white carbon black material is used as an adsorbent, is applied to the filter tip of the low-harm cigarette, and has a positive promoting effect on the development of novel low-harm cigarettes. Meanwhile, the influence on the existing cigarette production process is extremely small, and the main advantages are as follows: 1) the formula of the tobacco leaf raw materials does not need to be changed; 2) the cigarette production equipment does not need to be modified; 3) the production process of the auxiliary materials is not required to be changed.
Example 3
The cigarette smoke components of the cigarette samples obtained in the comparative example, the example 1 and the example 2 are analyzed, and the specific detection results are shown in table 2. The detection method of the corresponding components comprises the following steps: GB/T23356-.
TABLE 2 cigarette Smoke analysis results
As can be seen from table 2, the cigarette samples containing the composite cigarette filter rods for reducing the tar release amount of cigarettes prepared in example 1 and example 2 are significantly better than the conventional cigarettes in the comparative example in the aspect of the harmfulness evaluation index. In particular, the cigarette samples of examples 1 and 2 were remarkably effective in removing some high boiling point substances (such as NNK, phenol, and benzo [ a ] pyrene), and the removal efficiency of ammonia mainly present in the particulate phase components of the smoke was comparable to that of the high boiling point components. The reduction effects of carbon monoxide, hydrogen cyanide and crotonaldehyde, which are mainly present in the gas phase components of the flue gas, are not significant.
Example 4
The cigarette samples prepared in the comparative example, the example 1 and the example 2 are respectively subjected to analysis and evaluation of the whole components of the cigarette smoke. Wherein, the smoke particle phase component adopts a center cutting two-dimensional gas chromatography-mass spectrometry, the instrument is a 7890B/5977A gas mass combination instrument of Agilent company in the United states and is provided with a DB-5MS chromatographic column (30m multiplied by 0.32mm id multiplied by 0.25 mu mdf) and a DB-WAX chromatographic column (60m multiplied by 0.32mm id multiplied by 0.25 mu mdf), the specific detection result is shown in Table 3, the experimental data is normalized by the result of a comparative example, and the numerical values are arranged in an ascending order of example 2.
The gas phase components of the smoke adopt an air bag-thermal desorption-gas/mass combination method, and the instruments are an HP 7890A gas chromatograph (Agilent, USA) and an HP 5975C mass spectrometer (Agilent, USA); LSP02-1B syringe pump (Baoding Lange constant flow Pump, Inc.); TurboMatrix ATD thermal desorption apparatus (Perkin Elmer, usa); carbotrap 300 adsorption sampling tube (Supelco, USA), the specific test results are shown in Table 4, the experimental data is normalized with the results of the comparative example, and the values are arranged in ascending order of example 2.
TABLE 3 analysis of the particulate phase components of cigarette smoke
TABLE 4 analysis results of gas phase components of cigarette smoke
As can be seen from tables 3 and 4, the efficiency of reducing the smoke components of the cigarette samples containing the composite cigarette filter rods for reducing the tar release amount of cigarettes prepared in examples 1 and 2 is obviously better than that of the conventional cigarettes in the comparative examples, the white carbon black with surface polarity in example 2 has stronger adsorption capacity for the components with stronger polarity in the smoke components, while the white carbon black with surface inert treatment in example 1 has stronger adsorption capacity for the components with weaker polarity in the smoke components, and most of the smoke components have weaker polarity, so that the adsorption capacity of the white carbon black with surface inert treatment for the smoke components is stronger than that of the white carbon black with surface polarity.
According to the comprehensive test result, the white carbon black material is used as an adsorbent, is applied to a filter stick of a low-harm cigarette, and has an active promoting effect on development of a novel low-harm cigarette.
In conclusion, the adsorbent is added into the acetate fibers of the cigarette filter stick, so that the tar release amount of the cigarette can be effectively reduced, and particularly, the adsorption effect on harmful components with high boiling points in smoke components is remarkable, so that the harm is reduced; according to the invention, the white carbon black material is used as the adsorbent, has obvious oil absorption capacity, and can effectively adsorb particulate phase components in cigarette smoke, so that the tar release amount of the cigarette is reduced. Therefore, the present invention effectively overcomes the disadvantages of the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A composite cigarette filter stick for reducing the tar release amount of cigarettes is used for being connected with a cigarette body and is characterized in that: the composite cigarette filter stick comprises a first acetate fiber section and a second acetate fiber section, one end of the second acetate fiber section is connected with the first acetate fiber section, the other end of the second acetate fiber section is connected with the cigarette body, adsorbents are distributed in the second acetate fiber section, and the length ratio of the second acetate fiber section to the first acetate fiber section is (3-5): 1; the composite cigarette filter stick contains (1-50) mg/cigarette of the adsorbent; the adsorbent is silane modified white carbon black; the silane modified white carbon black is prepared by carrying out surface modification on white carbon black through a silane coupling agent, wherein the silane coupling agent is any one or more of trimethylethoxysilane, methyltrimethoxysilane, vinyl ethoxysilane, tetrabutoxysilane, hexamethylethylsiloxane and hexamethyldisiloxane; the composite cigarette filter stick is prepared by the following method: a) processing the first acetate fiber section and the second acetate fiber section; b) uniformly spraying the adsorbent among acetate fiber tows in the second acetate fiber section; miningCarrying out surface inert treatment on the white carbon black by using a dry modification process; the dry modification process is to adopt dry white carbon black and modifier steam to contact and react in a fluidized bed reactor under the condition of high temperature; the dry modification process conditions are as follows: the weight ratio of the silane coupling agent to the white carbon black is (0.2-0.4): 1, the pretreatment temperature is 330-370 ℃, the pretreatment time is 8-12min, the reaction temperature is 330-370 ℃, the reaction time is 8-12min, the nitrogen flow rate is 1.4-1.6 m-3/h。
2. The composite cigarette filter stick for reducing tar release amount of cigarettes according to claim 1, wherein the specific surface area of the adsorbent is (300-1000) m2/g。
3. The composite cigarette filter stick for reducing the tar release amount of cigarettes according to claim 1, wherein the particle size of the adsorbent is 1-10 μm.
4. The composite cigarette filter stick for reducing the tar release amount of cigarettes according to claim 1, wherein the mesoporous aperture of the adsorbent is 5-10 nm.
5. The composite cigarette filter stick for reducing the tar release amount of cigarettes according to claim 1, characterized in that: the adsorbent is uniformly distributed.
6. The composite cigarette filter stick for reducing the tar release amount of cigarettes according to claim 1, characterized in that: the length of the composite cigarette filter stick is 20-30 mm.
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| CN100333670C (en) * | 2004-10-15 | 2007-08-29 | 湖南中烟工业公司 | Inorganic spinning additive and its application method |
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