CN109924542B - Cigarette filter tip and cigarette with tipping paper coated with phase-change material and capable of automatically regulating ventilation rate, and preparation and application of cigarette filter tip and cigarette - Google Patents
Cigarette filter tip and cigarette with tipping paper coated with phase-change material and capable of automatically regulating ventilation rate, and preparation and application of cigarette filter tip and cigarette Download PDFInfo
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Abstract
The invention belongs to the technical field of cigarette filters, and particularly discloses a cigarette filter capable of automatically regulating and controlling ventilation rate, which comprises a filter stick, a piece of wrapping paper wrapping the filter stick, and tipping paper wrapping the surface of the piece of wrapping paper; the tipping paper is provided with a ventilation area, and the ventilation area is provided with a plurality of ventilation holes; and a phase change material layer for sealing the ventilation holes is arranged between the ventilation area and the forming paper. The invention also discloses preparation and application of the cigarette filter. The cigarette filter automatically regulates and controls the filter ventilation along with the cigarette smoking progress, namely the filter ventilation rate is zero in the initial smoking stage of the cigarette, and the filter ventilation is realized only 2-3 mouths before the smoking is finished, so that the purposes of reducing harm and tar of cigarette smoke are achieved, the smoke temperature and the smoke concentration are reduced in the smoking process of 2-3 mouths, the burning sense is eliminated, and the consistency and the stability of the whole cigarette smoking style are realized.
Description
Technical Field
The invention belongs to the field of design and processing of cigarette filters, and particularly relates to a cigarette filter material.
Background
Cigarette filters have become important media for reducing tar and harm of cigarettes, and a great deal of research work with great efficiency is carried out on the aspects of cigarette filter material and structure inside and outside the industry. The cigarette filter realizes the interception and filtration of harmful components in smoke mainly through the direct interception, inertial collision and diffusion deposition of aerosol particles, which are closely related to the physical properties and the structure of the filter and the temperature distribution of the cigarette filter. In the process of smoking 5-7 mouths of cigarettes, the smoke concentration and the smoke temperature are increased, wherein the concentration of total material phase substances and harmful substances in the smoke is obviously higher than that of the smoke of the front 1-4 mouths, the smoke temperature of the filter tip can reach 70-80 ℃ at most, and the smoke temperature of the filter tip even reaches over 100 ℃ in a deep smoking mode, so that the excessively high smoke temperature and concentration not only affect the interception effect of the filter tip on the harmful ingredients in the smoke, but also can generate burning sensation, affect the consistency and stability of the smoking style of the whole cigarette, and reduce the satisfaction degree of consumers on the sensory quality of the smoke. Therefore, the smoke temperature in the cigarette filter can play a key role in the filter interception efficiency and the sensory quality. The filter tip is used for ventilating, diluting, reducing harm and reducing tar, and is widely applied to cigarette products. The filter tip ventilation can utilize the heat exchange of environment normal atmospheric temperature air and flue gas in the filter tip when diluting the flue gas, reduces the filter tip temperature. However, smoke constituents tend to increase from mouth to mouth during smoking of a cigarette, and during the initial smoking period, the filter is ventilated and diluted to cause the smoke flavor components to be too low to affect the taste.
In the prior art, various functional additives are mostly added into round cigarette sticks in order to reduce the temperature and harmful ingredients of cigarettes. Taking the reduction of the temperature of the last three mouths of cigarettes as an example, the method reported in the prior art is mainly characterized in that phase-change materials are added into round rods of the cigarettes; for example, chinese patent publication No. CN105996121A discloses a filter stick additive capable of releasing functional substances through phase change. Chinese patent publication No. CN 104263321A discloses a composite phase-change material capable of regulating and controlling the smoke temperature of a cigarette filter, which is obtained by loading sodium sulfate decahydrate and sodium tetraborate decahydrate on expanded graphite through co-crystallization under the action of sodium polyacrylate. Further, as disclosed in chinese patent publication No. CN104449586A, an organic/inorganic composite phase change material capable of regulating and controlling the smoke temperature of cigarette filters is disclosed. In the prior art, the phase-change material is usually added into a filter stick to achieve the purpose of cooling the filter tip, so that the sensory quality of cigarettes is influenced to a certain extent. Furthermore, if the cigarette filter is kept well ventilated all the time, for example, a large ventilation is provided at the early stage of smoking, the smoking taste will be greatly influenced.
Disclosure of Invention
In order to overcome the technical problems in the prior art, the invention provides a cigarette filter capable of automatically regulating and controlling the ventilation rate, and aims to provide a cigarette filter capable of automatically regulating and controlling the temperature of the last three mouths of smoking and diluting harmful substances by adopting a physical method.
The second purpose of the invention is to provide a preparation method of the cigarette filter.
The third purpose of the invention is to provide the application of the cigarette filter.
The fourth purpose of the invention is to provide a cigarette with the cigarette filter.
A cigarette filter tip capable of automatically regulating and controlling ventilation rate comprises a filter stick, a piece of wrapping paper wrapping the filter stick, and tipping paper (tipping paper) wrapping the surface of the piece of wrapping paper; the tipping paper is provided with a ventilation area, and the ventilation area is provided with a plurality of ventilation holes; and a phase change material layer for sealing the ventilation holes is arranged between the ventilation area and the forming paper.
According to the cigarette filter, the ventilation holes (also called as the ventilation holes) and the phase-change material layer are arranged in the tipping paper, the ventilation holes are sealed by the phase-change material layer under a normal condition (namely, under the condition that the phase-change material layer does not change phase), and when the phase-change material layer is particularly at the last three mouths in the smoking process, the phase-change material layer changes phase by temperature, so that the ventilation holes are automatically opened, fresh air enters through the ventilation holes, the fresh air can effectively reduce the temperature of the last three mouths in smoking, and the harmful ingredients of mainstream smoke can be favorably diluted. The cigarette filter realizes the cooling and harm reduction by a pure physical method; the filter tip provided by the invention has the advantages that the defects caused by adding various additives into the filter stick fibers are effectively avoided, in addition, the filter tip is simple in structure and easy to stably produce and prepare.
The cigarette filter provided by the invention can automatically regulate and control the filter ventilation along with the cigarette smoking progress, namely the filter ventilation rate is zero in the initial smoking stage of the cigarette, 2-3 mouths are only before smoking is finished, the mainstream smoke is high, the phase change of the phase change material compounded on the tipping paper is promoted, the ventilation holes in a ventilation area are opened, the filter ventilation is realized, the purposes of reducing harm and tar of the cigarette smoke are achieved, the smoke temperature and the smoke concentration are reduced in the 2-3-mouth smoking process, the burning sensation is eliminated, and the consistency and the stability of the whole cigarette smoking style are realized.
The phase-change material layer is formed by solidifying the phase-change material after phase change.
In the invention, the ventilation area is coated with the phase-change material after phase change and then solidified, thereby closing the ventilation hole.
In the invention, the ventilation holes are closed by the phase-change material under a normal state. The ventilation zone can be theoretically compounded with other material layers except for the phase-change material coated on the ventilation zone, and the material layers cannot seal ventilation holes of the ventilation zone after the phase-change material layers change.
Preferably, the ventilation zone is arranged at the end of the tipping paper close to the tobacco shreds.
Preferably, the ventilation zone can be one or more.
Preferably, the ventilation zone is arranged along the periphery of the cigarette filter. The ventilation area is arranged on the periphery of the cigarette filter tip close to the tobacco shred end; such an arrangement helps to reduce the pumping temperature and hazardous material concentration of the last three ports.
Preferably, the expansion plane of the ventilation area is rectangular.
Further preferably, the width of the ventilation zone is 3-20 mm; the ventilation zone is started from the end, close to the tobacco shred, of the filter stick wrapped by the tipping paper. The width of the ventilation zone refers to the length of the ventilation zone in the axial direction of the cigarette filter; the tipping paper length refers to the length of the tipping paper in the axial direction of the cigarette filter.
Further preferably, the shortest distance between the ventilation area of the tipping paper and the tobacco shred end is 5-12 mm, and the arrangement width of the ventilation holes is 3-20 mm. That is, the arrangement positions of the tipping paper ventilation holes are as follows: 5-12 mm from the tobacco shred end, and 3-20mm in the arrangement width of the ventilation holes.
In the invention, the forming paper is high-transparency forming paper.
Preferably, the molding paper has an air permeability of not less than 3000 CU.
More preferably, the air permeability of the molding paper is 3000-50000 CU.
The tipping paper is used for automatically adjusting the main stream smoke through the through partition and is also used for receiving and installing tobacco rods. For example, the tipping paper may comprise an over-wrapped portion and a portion for receiving the tobacco rod, the said pass-through region being provided at the base of the over-wrapped portion (near the end of the tobacco rod).
Preferably, the tipping paper is laminated to the plug wrap by means of an adhesive mass (adhesive glue) applied to the area outside the ventilation zone.
The adhesive material is arranged in an area between the forming paper and the tipping paper except for the ventilation area; the areas outside the tipping paper ventilation area are sealed by adhesive materials, and the air permeability is 0 CU. Therefore, on one hand, the tipping paper covers the surface of the forming paper, and in addition, the ventilation of the gaps between the tipping paper and the forming paper fibers except for the ventilation area can be closed; further improving the automatic ventilation effect of the cigarette filter; for example, the mellow flavor in the early stage of smoking can be sufficiently maintained, the concentration of harmful ingredients in the last 2-3 mouths can be reduced, and the burning sensation can be eliminated.
The adhesive material can be adhesive glue commonly used in the field of cigarettes.
Preferably, the air permeability of the tipping paper ventilation area is not less than 300 CU. The air permeability refers to the air permeability of a ventilation area which is not coated with the phase change material layer, and can also be the air permeability of an open ventilation area after the phase change of the phase change material.
More preferably, the air permeability of the tipping paper is 300-1000 CU.
Before the phase-change material is coated, the filter tip ventilation rate of the tipping paper with the arranged ventilation holes is preferably 5-50%; after the phase-change material is coated, the ventilation rate of the cigarette filter is preferably 0 before the phase-change material changes phase, and after the phase-change material changes phase, the ventilation rate of the cigarette filter is preferably 5-50%.
Preferably, the phase change material is an organic phase change material.
The phase change material is preferably a coatable organic phase change material. The organic phase-change material is converted from a solid state to a liquid state after the temperature reaches the phase-change temperature, so that the ventilation effect of an open ventilation area is achieved. The phase-change material does not relate to the loss and conversion of crystal water, and mainly aims to open the ventilation holes so as to lead fresh air to be introduced from the ventilation holes.
Preferably, the phase change temperature of the phase change material is 30-70 ℃.
Further preferably, the phase change temperature of the phase change material is 35-50 ℃.
Preferably, the organic phase change material includes, but is not limited to, at least one of polyether phase change material, paraffin phase change material, carboxylate phase change material, polyol phase change material, n-alkanol phase change material, and sugar alcohol phase change material.
Further preferably, the polyether phase change material includes, but is not limited to, at least one of polyethylene glycol and polytetramethylene glycol.
The paraffin phase-change material comprises at least one of refined paraffin and straight-chain paraffin.
The carboxylate phase-change material includes, but is not limited to, butyl stearate.
The polyol-based phase change material includes, but is not limited to, neopentyl glycol.
The n-alkanols include, but are not limited to, 1-tetradecanol.
The sugar alcohol includes but is not limited to at least one of mannitol and erythrose.
More preferably, the phase change material is at least one of PEG 1000-4000, eicosane and octadecane. The mixing of different phase-change materials is beneficial to widening the application temperature range, namely, the phase-change materials can be subjected to phase change in a wider temperature range, and the air permeability of the filter tip can be regulated and controlled.
Preferably, the thickness of the phase change material layer is 20 to 100 μm. That is, the coating thickness of the phase change material is preferably 20 to 100 μm.
The invention discloses a preferable filter tip capable of automatically regulating and controlling ventilation rate, which comprises a filter stick and tipping paper, wherein the filter stick is wrapped by high-permeability plug wrap paper, the periphery of the filter stick is wrapped by a layer of tipping paper used for receiving cigarettes, ventilation holes are distributed at proper positions of the tipping paper, and the ventilation holes distributed on the tipping paper are covered by phase-change materials, so that the ventilation rate of the filter tip is zero. The invention utilizes the heat of the smoke to melt the phase-change material covering the ventilation holes of the tipping paper, and regulates and controls the air permeability of the tipping paper, thereby realizing the automatic regulation and control of the ventilation rate of the filter tip.
The invention also provides a preparation method of the cigarette filter tip capable of automatically regulating and controlling the ventilation rate, and the plug wrap paper is compounded on the surface of the filter tip;
punching holes on the tipping paper to form a ventilation area with a plurality of ventilation holes, and coating a phase change material on the ventilation area; and coating glue on the tipping paper except the ventilation area, and compounding the tipping paper on the surface of the forming paper to obtain the tipping paper.
The preparation method is simple and easy for industrial scale-up production; and the prepared material has stable and excellent performance.
The vent hole can be formed by conventional methods, preferably by laser drilling.
The invention also provides application of the cigarette filter capable of automatically regulating and controlling the ventilation rate, and the cigarette filter is connected with a tobacco rod to prepare the cigarette capable of automatically regulating and controlling the ventilation rate.
The cigarette can be attached by conventional method.
The invention also comprises a cigarette which is connected with the cigarette filter capable of automatically regulating and controlling the ventilation rate.
Preferred cigarettes, including cigarette filters, and tobacco rods; the cigarette filter comprises a filter stick and tipping paper, wherein the periphery of the filter stick is coated with the plug wrap paper, and the tipping paper is coated on the periphery of the plug wrap paper and can be used for tipping the cigarette stick; the tipping paper located in the cigarette filter area is provided with a ventilation area, the ventilation area is close to the tobacco shred end of the cigarette filter, and a phase change material layer is arranged between the ventilation area and the forming paper.
In the invention, under the normal condition (before phase change of the phase change material), the ventilation holes on the periphery of the cigarette filter are sealed by the phase change material and the adhesive glue for the composite tipping paper, and the ventilation rate on the periphery of the filter is 0; when the last 2-3 mouths of the smoking are smoked, the temperature of the main stream smoke is higher, the phase change of the phase change material is promoted, the ventilation holes in the phase change area are opened, fresh air is introduced from the ventilation holes, the concentration of harmful ingredients in the main stream smoke is reduced through the fresh air, and in addition, the temperature of the main stream smoke of the last few mouths can be reduced.
Advantageous effects
The phase-change material is coated on the laser drilling part of the cigarette tipping paper for the first time, holes are completely blocked, the phase state of the phase-change material is influenced by different smoke temperatures in the cigarette smoking process, the air permeability of the tipping paper is regulated, and the automatic regulation and control of the filter tip ventilation rate in the cigarette smoking process are realized. In the last 2-3 smoking processes of the cigarette, the smoke temperature and the smoke concentration in the cigarette filter are effectively reduced, the burning feeling is eliminated, the consistency and the stability of the smoking style of the whole cigarette are kept, and the release amount of various harmful substances in the smoke is obviously reduced.
Drawings
FIG. 1 is a perforated tipping paper;
FIG. 2 is a view of a tipping paper perforated area coated with a phase change material; in fig. 2, the gray areas represent the coating with the phase change material, and the ventilation holes in the gray areas are closed by the phase change material;
FIG. 3 is a view showing that the phase change material coated on the perforated area of the tipping paper is melted by the heat of the smoke; in fig. 3, the ventilation holes in the grey zone are open;
fig. 4 is a schematic cross-sectional view of a filter.
In FIGS. 1 to 4, 1, the holes of the tipping paper are arranged (ventilation zone); 2. phase change material (phase change material layer, gray portion in the drawing) coated on the perforated area; 3. tipping paper; 4. high-transparency forming paper; 5. a cigarette filter stick; 6. cigarette (tobacco rod).
FIG. 5 is a graph showing the results of measuring the smoke temperature of the filter according to example 1; wherein the temperature profile at the upper part is the control temperature profile.
Detailed Description
The following examples are intended to illustrate the invention without further limiting its scope.
Example 1
Taking tipping paper with the width of 33mm, and performing laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the distance between two rows of holes is 3mm, and the air permeability of the obtained drilling tipping paper is 700 CU; taking a proper amount of phase change material polyethylene glycol (PEG-2000; phase change temperature is 43 ℃) to heat and melt at a constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-drilled tipping paper into the compound machine, coating the phase change material on the laser-drilled tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material to cigarettes on a cigarette making machine, wherein the used filter stick is a 10000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarettes, and the laser perforating coating area is not glued. During the smoking process of the cigarette, the prepared cigarette is subjected to detection of filter ventilation rate, filter smoke temperature and release amount of harmful components in main stream smoke, and the results are shown in tables 1 and 2. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.6%, 20.2% and 24.4% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 35 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase change material PEG is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 1 automatic control of Filter Ventilation Rate and Filter maximum Smoke temperature in Ventilation Filter cigarette sample puff-by-puff smoking
TABLE 2 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 2
Taking tipping paper with the width of 33mm, and performing laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the space between four rows of holes is 1mm, and the air permeability of the obtained drilling tipping paper is 1000 CU; taking a proper amount of phase change material polyethylene glycol (PEG-1000; the phase change temperature is 30 ℃) to heat and melt at the constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-drilled tipping paper into the compound machine, coating the phase change material on the laser-drilled tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material to cigarettes on a cigarette making machine, wherein the used filter stick is a 6000CU (cone paper) forming high-permeability stick, the perforating end of the tipping paper is connected with the cigarettes, and glue is not applied to a laser perforating and coating area. During the smoking process of the cigarette, the prepared cigarette is subjected to the detection of the ventilation rate of the filter, the smoke temperature of the filter and the release amount of harmful components in the mainstream smoke, and the results are shown in tables 3 and 4. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.8%, 20.5% and 25.9% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 35 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase change material PEG is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 3 Filter Ventilation Rate and Filter maximum Smoke temperature in the automatic control of Ventilation Filter cigarette samples puff by puff
TABLE 4 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 3
Taking tipping paper with the width of 33mm, carrying out laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the distance between 2 rows of holes is 3mm, and the air permeability of the obtained drilling tipping paper is 500 CU; taking a proper amount of phase change material polyethylene glycol (PEG-4000; the phase change temperature is 47 ℃) to heat and melt at the constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-punched tipping paper into the compound machine, coating the phase change material on the laser-punched tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material on a cigarette making machine to form a cigarette, wherein the used filter stick is a 16000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarette, and glue is not applied to a laser perforating and coating area. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful constituents of mainstream smoke, and the results are shown in tables 5 and 6. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.4%, 20.0% and 23.9% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 35 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase change material PEG is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 5 automatic control of Filter Ventilation Rate and Filter maximum Smoke temperature during Vent Filter cigarette sample puff-by-puff smoking
TABLE 6 automatic control of harmful ingredient release amount of mainstream smoke of ventilated filter cigarette sample
Example 4
Taking tipping paper with the width of 33mm, carrying out laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 10mm, the space between four rows of holes is 2mm, and the air permeability of the obtained drilling tipping paper is 700 CU; taking a proper amount of phase change material polyethylene glycol (20% PEG-1000+ 80% PEG-4000; the phase change temperature is respectively 30 ℃ and 47 ℃) to heat and melt at the constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-punched tipping paper into the compound machine, coating the phase change material on the laser-punched tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material on a cigarette making machine to form a cigarette, wherein the used filter stick is a 24000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarette, and the laser perforating coating area is not glued. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful constituents of mainstream smoke, and the results are shown in tables 7 and 8. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.5%, 20.2% and 24.0% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 35 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase change material PEG is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 7 Filter Ventilation Rate and Filter maximum Smoke temperature in the automatic control of Ventilation Filter cigarette samples puff by puff
TABLE 8 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 5
Taking tipping paper with the width of 33mm, and performing laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the distance between two rows of holes is 3mm, and the air permeability of the obtained drilling tipping paper is 700 CU; taking a proper amount of phase-change material eicosane (the phase-change temperature is 37 ℃) to be heated and melted in a feeding tank of a compound machine at the constant temperature of 80 ℃, loading laser-punched tipping paper into the compound machine, coating the phase-change material on the laser-punched tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material to cigarettes on a cigarette making machine, wherein the used filter stick is a 10000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarettes, and the laser perforating coating area is not glued. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful constituents of mainstream smoke, and the results are shown in tables 9 and 10. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.6%, 20.2% and 24.4% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 35 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase-change material alkane is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 9 automatic control of Filter Ventilation Rate and Filter maximum Smoke temperature during Vent Filter cigarette sample puff-by-puff smoking
TABLE 10 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 6
Taking tipping paper with the width of 33mm, and performing laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the space between four rows of holes is 1mm, and the air permeability of the obtained drilling tipping paper is 1000 CU; taking a proper amount of phase change material octadecane (the phase change temperature is 28 ℃) to heat and melt at the constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-drilled tipping paper into the compound machine, coating the phase change material on the laser-drilled tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material to cigarettes on a cigarette making machine, wherein the used filter stick is a 6000CU (cone paper) forming high-permeability stick, the perforating end of the tipping paper is connected with the cigarettes, and glue is not applied to a laser perforating and coating area. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful components of mainstream smoke, and the results are shown in tables 11 and 12. The results show that the total number of the cigarette suction openings is 7, the ventilation rate of the filter tip is 0 in the first 4 suction openings, and the ventilation rate of the filter tip is 8.2%, 19.2% and 23.6% in the last three suction openings respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 40 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase-change material alkane is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 11 automatic control of Filter Ventilation Rate and Filter maximum Smoke temperature during Vent Filter cigarette sample puff-by-puff smoking
TABLE 12 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 7
Taking tipping paper with the width of 33mm, carrying out laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 5mm, the distance between 2 rows of holes is 3mm, and the air permeability of the obtained drilling tipping paper is 500 CU; taking a proper amount of phase change material (10% octadecane and 90% eicosane; the phase change temperature is respectively 28 ℃ and 37 ℃) to heat and melt at a constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-punched tipping paper into the compound machine, coating the phase change material on the laser-punched tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material on a cigarette making machine to form a cigarette, wherein the used filter stick is a 16000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarette, and glue is not applied to a laser perforating and coating area. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful components of mainstream smoke, and the results are shown in tables 13 and 14. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.4%, 20.0% and 23.9% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 40 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase-change material alkane is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 13 automatic control of Filter Ventilation Rate and Filter maximum Smoke temperature during Vent Filter cigarette sample puff-by-puff smoking
TABLE 14 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
Example 8
Taking tipping paper with the width of 33mm, carrying out laser drilling (two rows) in a drilling area 9mm away from one end of the tipping paper, wherein the width of the drilling area is 10mm, the space between four rows of holes is 2mm, and the air permeability of the obtained drilling tipping paper is 700 CU; taking a proper amount of phase change material (40% octadecane and 60% eicosane; the phase change temperature is respectively 28 ℃ and 37 ℃) to heat and melt at a constant temperature of 80 ℃ in a feeding tank of a compound machine, loading laser-punched tipping paper into the compound machine, coating the phase change material on the laser-punched tipping paper, and blocking laser holes on the tipping paper. And then, rolling and connecting the perforated tipping paper coated with the phase change material on a cigarette making machine to form a cigarette, wherein the used filter stick is a 50000CU formed paper high-permeability stick, the perforating end of the tipping paper is connected with the cigarette, and glue is not applied to a laser perforating and coating area. During the smoking process of the cigarette, the prepared cigarette was tested for filter ventilation rate, filter smoke temperature and release of harmful components of mainstream smoke, and the results are shown in tables 15 and 16. The results show that the total number of the smoking openings of the cigarette is 7, the ventilation rate of the filter tip is 0 in the first 4 smoking processes, and the ventilation rate of the filter tip is 8.5%, 20.2% and 24.0% in the last three smoking processes respectively; in the whole cigarette smoking process, the highest smoke temperature of the filter tip is below 40 ℃, and the highest smoke temperature in the filter tip of the non-ventilated filter tip control cigarette sample can reach 80-90 ℃; the detection result of harmful components in the mainstream smoke shows that compared with a non-ventilated filter control cigarette sample, the release amount of harmful components such as nicotine, phenol, crotonaldehyde, CO, benzopyrene, ammonia, nitrosamine and the like in the mainstream smoke of the cigarette sample with the ventilated filter is obviously reduced, and the reduction rate is 15-22%. The results show that the phase-change material alkane is coated on the cigarette tipping paper ventilation holes, so that the automatic regulation and control of the filter ventilation rate in the cigarette smoking process can be realized, and the smoke temperature in the cigarette filter and the release amount of harmful ingredients in the mainstream smoke can be effectively reduced.
TABLE 15 automatic control of filter ventilation rate and maximum filter smoke temperature during puff-by-puff smoking of ventilated filter cigarette samples
TABLE 16 automatic control of harmful ingredient release amount of mainstream smoke mouth by mouth for ventilated filter cigarette samples
The embodiment shows that the cigarette filter with the novel structure effectively reduces the temperature of the last three smoke mouths by a pure physical method, and is favorable for reducing the concentration of harmful components in smoke, particularly in the last three main smoke mouths.
Claims (20)
1. A cigarette filter tip capable of automatically regulating and controlling ventilation rate comprises a filter stick, a piece of wrapping paper wrapping the filter stick, and tipping paper wrapping the surface of the piece of wrapping paper; the tipping paper is characterized in that the tipping paper is provided with a ventilation area, and the ventilation area is provided with a plurality of ventilation holes; a phase change material layer for sealing the ventilation holes is arranged between the ventilation area and the forming paper;
before the phase change of the phase-change material, the ventilation hole of the ventilation area is closed by the phase-change material, and after the phase change of the phase-change material, the ventilation hole of the ventilation area is opened.
2. The cigarette filter capable of automatically regulating ventilation rate according to claim 1, characterized in that the phase change material layer is compounded in the ventilation zone.
3. The cigarette filter with the ventilation rate automatically regulated according to claim 1, wherein the ventilation zone is arranged at the end of the tipping paper close to the tobacco.
4. The cigarette filter capable of automatically controlling ventilation rate according to claim 3, wherein the ventilation zone is provided along the outer circumference of the cigarette filter.
5. The cigarette filter capable of automatically controlling ventilation rate of claim 4, wherein the development plane of the ventilation area is rectangular.
6. The cigarette filter tip capable of automatically regulating and controlling the ventilation rate of claim 5, wherein the shortest distance between the ventilation area of the tipping paper and the tobacco shred end is 5-12 mm, and the arrangement width of the ventilation holes is 3-20 mm.
7. The cigarette filter capable of automatically controlling ventilation according to claim 1, wherein the plug wrap paper has an air permeability of not less than 3000 CU.
8. The cigarette filter capable of automatically adjusting and controlling ventilation rate of claim 1, wherein the air permeability of the tipping paper ventilation area is not less than 300 CU.
9. The cigarette filter capable of automatically controlling ventilation according to claim 1, wherein the tipping paper is coated on the plug wrap by an adhesive material applied to a region other than the ventilation region.
10. The cigarette filter with the ventilation automatically regulated and controlled according to claim 9, wherein the area outside the tipping paper ventilation area is sealed by an adhesive material, and the air permeability is 0 CU.
11. The cigarette filter capable of automatically regulating and controlling the ventilation rate according to any one of claims 1 to 10, wherein the phase-change material is an organic phase-change material.
12. The cigarette filter capable of automatically regulating and controlling the ventilation rate of claim 11, wherein the phase-change temperature of the phase-change material is 30-70 ℃.
13. The cigarette filter capable of automatically regulating and controlling ventilation rate according to claim 12, wherein the phase transition temperature of the phase transition material is 35-50 ℃.
14. The cigarette filter capable of automatically regulating ventilation rate according to claim 12, wherein the organic phase change material includes, but is not limited to, at least one of polyether phase change material, paraffin phase change material, carboxylic ester phase change material, polyol phase change material, n-alkanol phase change material, and sugar alcohol phase change material.
15. The cigarette filter capable of automatically regulating ventilation rate according to claim 14,
the polyether phase change material comprises at least one of polyethylene glycol and polytetramethylene glycol;
the paraffin phase-change material comprises at least one of refined paraffin and straight-chain paraffin;
the carboxylic ester phase-change material comprises but is not limited to butyl stearate;
the polyol-based phase change material includes, but is not limited to, neopentyl glycol;
the normal alkanols include, but are not limited to, 1-tetradecanol;
the sugar alcohol includes but is not limited to at least one of mannitol and erythrose.
16. The cigarette filter capable of automatically regulating and controlling ventilation rate of claim 15, wherein the phase change material is at least one of PEG 1000-4000, eicosane and octadecane.
17. The cigarette filter capable of automatically regulating the ventilation rate of claim 11, wherein the thickness of the phase change material layer is 20-100 μm.
18. The preparation method of the cigarette filter tip capable of automatically regulating and controlling the ventilation rate according to any one of claims 1 to 17, characterized in that plug wrap is compounded on the surface of the filter stick;
punching holes on the tipping paper to form a ventilation area with a plurality of ventilation holes, and coating a phase change material on the ventilation area; and coating glue on the tipping paper except the ventilation area, and compounding the tipping paper on the surface of the forming paper to obtain the tipping paper.
19. The application of the cigarette filter tip with the ventilation rate automatically regulated and controlled according to any one of claims 1 to 17, wherein the cigarette filter tip is connected with a tobacco rod to prepare a cigarette with the ventilation rate automatically regulated and controlled.
20. A cigarette connected with the cigarette filter tip capable of automatically regulating and controlling ventilation rate according to any one of claims 1 to 17.
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| CN201711362495.2A CN109924542B (en) | 2017-12-15 | 2017-12-15 | Cigarette filter tip and cigarette with tipping paper coated with phase-change material and capable of automatically regulating ventilation rate, and preparation and application of cigarette filter tip and cigarette |
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| CN201711362495.2A CN109924542B (en) | 2017-12-15 | 2017-12-15 | Cigarette filter tip and cigarette with tipping paper coated with phase-change material and capable of automatically regulating ventilation rate, and preparation and application of cigarette filter tip and cigarette |
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| CN110419773B (en) * | 2019-07-24 | 2022-04-29 | 广东中烟工业有限责任公司 | Filter tip and cigarette of variable air volume |
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| CN107087811A (en) * | 2017-05-26 | 2017-08-25 | 湖北中烟工业有限责任公司 | With reduction flue-gas temperature and the low temperature cigarette for preventing that mouth rod heat from collapsing |
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| CN2525821Y (en) * | 2002-01-11 | 2002-12-18 | 玉溪金灿科技有限公司 | Ventilation dilution structure for tar-reducing filter tip of cigarette |
| CN1935932A (en) * | 2006-09-14 | 2007-03-28 | 电子科技大学 | High-heat-conducting composite phase-transition energy-storage material and its preparing method |
| US20120017926A1 (en) * | 2010-03-26 | 2012-01-26 | Philip Morris Usa Inc. | Cigarettes and filter subassemblies with squeezable oval flavor capsule and methods of manufacture |
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