CN212260459U - Composite filter stick with thermal shrinkage effect - Google Patents
Composite filter stick with thermal shrinkage effect Download PDFInfo
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- CN212260459U CN212260459U CN201922444804.1U CN201922444804U CN212260459U CN 212260459 U CN212260459 U CN 212260459U CN 201922444804 U CN201922444804 U CN 201922444804U CN 212260459 U CN212260459 U CN 212260459U
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Abstract
The utility model provides a compound filter rod with heat shrink effect, compound filter rod are formed by heat shrinkable fiber tow and base member complex, heat shrinkable fiber tow along axial embedding in the base member, heat shrinkable fiber tow presents single-point, multiple spot or regional concentrated distribution in the cross section of compound filter rod, and heat shrinkable fiber tow takes place the pyrocondensation in the temperature interval of 40 ℃ -200 ℃, and the thermal shrinkage is 10-70%, and when heating cigarette was used, the heat shrinkable tow passed through along with high temperature flue gas and shows the heat shrinkage, and compound filter rod both ends form local cavity venturi structure. The composite filter stick not only can provide a smoke mixing space, but also has the functions of mixing smoke, supporting, filtering, reducing smoke temperature and the like, and has the advantages of simple structure, simple and convenient manufacture, low cost and the like compared with the traditional multi-section processing technology of the composite filter stick.
Description
Technical Field
The utility model relates to the technical field of tobacco, concretely relates to compound filter rod with thermal contraction effect.
Background
With the decrease of the proportion of traditional cigarette consumers and the increasingly severe tobacco control regulations in the international market, the development and market promotion of novel tobacco products are accelerated by domestic and foreign tobacco enterprises, and a novel cigarette product, namely, a heating cigarette, is released in the markets of Japan and Korea and Europe and America. The smoke generation principle is that tobacco is heated at the temperature of lower than 500 ℃ through a smoldering carbon rod or a heating electronic element, so that the tobacco is not combusted, but the tobacco components can still be distilled and cracked, thereby releasing nicotine and tobacco characteristic aroma and meeting the requirements of consumers.
Compared with the traditional combustion type cigarette, the cigarette heating device has the advantages that the temperature of the smoke inlet of the heated cigarette can be higher than 60 ℃, the smoke quantity is small, the nicotine delivery quantity is small, and a section of supporting filter stick is needed for a smoking product. Currently there are mainly two types of filter plug constructions on the international market, one type of filter plug construction comprising a support element, an aerosol cooling element, a filter section and/or a hollow tube. The other composite filter stick with a multi-section composite structure is sequentially connected by a solid filter, a first hollow filter, a second hollow filter and a third hollow filter, so that multiple effects of mixing smoke, reducing smoke temperature, shortening smoke response time and the like are achieved. The filter stick of the two types of heating cigarettes is composed of at least 3 sections of structures, and at least 3 processing technologies are needed for production and assembly.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the prior art, the first object of the present invention is to provide a composite filter rod with thermal contraction effect.
In order to achieve the above purpose, the utility model discloses a solution is:
a composite filter stick with a heat shrinkage effect is formed by compounding a heat-shrinkable fiber tow and a base body, wherein the heat-shrinkable fiber tow is embedded into the base body along the axial direction, when a cigarette is heated for application, the heat-shrinkable fiber tow shows heat shrinkage along with high-temperature smoke, and two ends of the composite filter stick form a local hollow Venturi structure.
The composite filter stick comprises 10-80 wt% of the heat-shrinkable fiber tows and 20-90 wt% of the matrix.
The base body is conventional cigarette tows, and the composite filter rod is prepared by simultaneously opening and leading the heat-shrinkable fiber tows and the conventional cigarette tows into a forming machine and adding a plasticizer.
The conventional cigarette tows comprise one or more of cellulose acetate tows, polypropylene fiber tows and polylactic acid fiber tows.
The base body is a hollow filter stick, the composite filter stick fills the heat shrinkable fiber tows into a cavity of the hollow filter stick, and the hollow filter stick comprises a conventional tow filter stick, a paper filter stick and a hollow tube filter stick.
The heat shrinkable fiber tows are distributed in a single point, multiple points or concentrated areas in the cross section of the composite filter stick.
The thermal shrinkage fiber tow is a thermal shrinkage polymer material, is in a fiber state, is a fiber aggregate consisting of a plurality of fibers, has thermal shrinkage at a temperature range of 40-200 ℃, and has a thermal shrinkage rate of 10-70%;
preferably, the thermal shrinkage rate of the thermal shrinkage strand ranges from 20% to 70% in a temperature change range of 50 ℃ to 180 ℃.
The heat shrinkable fiber tow is uncrimped straight yarn, and the uncrimped straight yarn comprises one or more composite fibers of polylactic acid fiber, polyethylene terephthalate fiber, nylon fiber, polypropylene fiber, high polyacrylonitrile fiber and shrinkable polyester fiber.
The utility model provides a preparation method of above-mentioned compound filter rod with heat shrinkage effect contains following step:
one or more strands of the thermal shrinkage fiber tows and the matrix are molded on a molding machine in one step, so that the thermal shrinkage fiber tows are distributed in a single-point, multi-point or area concentrated manner in the cross section of the composite filter stick;
the positions of the single point and the multiple points are placed at any position of the cross section of the composite filter rod according to the design requirements of the appearance and the performance of the filter, the concentrated distribution of the areas can also be placed at any position of the cross section of the filter rod according to the design requirements of the appearance and the performance of the filter, and the cross section of the concentrated distribution area can be in any shape, single or polydisperse.
The utility model also provides an application of foretell compound filter rod with thermal contraction effect in cigarette and heating cigarette.
Due to the adoption of the scheme, the beneficial effects of the utility model are that: the composite filter stick is formed by compounding a heat-shrinkable fiber tow and a base body, the heat-shrinkable fiber tow is embedded into the base body along the axial direction, when a cigarette is heated and applied, the heat-shrinkable fiber tow passes through high-temperature smoke to show heat shrinkage, and two ends of the composite filter stick form a local hollow Venturi structure. The composite filter stick not only can provide a smoke mixing space, but also can provide support, meet certain filtering performance and reduce the temperature, has multiple functions of mixing smoke, supporting, filtering, reducing the smoke temperature and the like, has simple structure, simple and convenient manufacture and low cost, and has advantages compared with the traditional multi-section processing technology of the composite filter stick.
Drawings
Figure 1 is a cross-sectional view of a composite filter plug mouthpiece end of an embodiment.
FIG. 2 is a schematic cross-sectional view of a composite filter rod according to an embodiment.
Fig. 3 is a graph showing the cooling effect of the composite filter stick according to the embodiment.
Detailed Description
The utility model provides a composite filter stick with thermal contraction effect and preparation method and application thereof
< composite Filter rod >
The composite filter stick is formed by compounding a heat-shrinkable fiber tow and a base body, the heat-shrinkable fiber tow is embedded into the base body along the axial direction, when a cigarette is heated and applied, the heat-shrinkable fiber tow passes through high-temperature smoke to show heat shrinkage, and two ends of the composite filter stick form a local hollow Venturi structure. The conventional cigarette tows are arranged in a manner that the fiber tows with the same specification are mutually connected, the heat-shrinkable fiber tows are axially embedded in the conventional cigarette tows, and the heat-shrinkable fiber tows axially penetrate through two ends of the composite filter rod.
One end of the composite filter stick is used for rolling and connecting a tobacco section, and when the cigarette is heated and applied, the heat shrinkage performance of the heat-shrinkable fiber tows is gradually reduced along with the flowing direction of high-temperature smoke, namely the heat shrinkage rate is reduced, so that local hollow Venturi structures are formed at two ends of the composite filter stick. The principle of the venturi effect is that when wind blows over an obstacle, the air pressure is relatively low near the port above the lee side of the obstacle, creating an adsorption effect and causing a flow of air; the principle of the venturi tube is to make the air flow from large to small to increase the air flow rate, so that the air forms a "vacuum" zone at the rear side of the outlet of the venturi tube.
Preferably, the weight of the heat shrinkable fiber tows in the composite filter stick accounts for 10% -80%, and the weight of the matrix accounts for 20% -90%.
Preferably, the substrate is conventional cigarette tows, and the composite filter rod is prepared by simultaneously opening and introducing the heat-shrinkable fiber tows and the conventional cigarette tows into a forming machine and adding a plasticizer.
Further, the conventional cigarette tows comprise one or more of cellulose acetate tows, polypropylene fiber tows and polylactic acid fiber tows.
Preferably, the substrate is a hollow filter stick, the composite filter stick fills the heat-shrinkable fiber tows in a cavity of the hollow filter stick, and the hollow filter stick comprises a conventional tow filter stick, a paper filter stick and a hollow tube filter stick. For example, the composite filter stick is prepared by adding a heat-shrinkable polymer material into a hollow filter stick, the hollow filter stick is axially provided with at least one hollow cavity, the heat-shrinkable polymer material is filled in the hollow cavity, when the composite filter stick is applied to heating cigarettes, the heat-shrinkable polymer material shows heat shrinkage along with the passing of high-temperature smoke, and the composite filter stick forms a hollow venturi structure with two local ends.
Preferably, the heat shrinkable fiber tows are distributed in a concentrated manner in a single point, multiple points or areas in the cross section of the composite filter rod.
Preferably, the heat-shrinkable fiber tow is a heat-shrinkable polymer material in a fiber state, is a fiber aggregate consisting of a plurality of fibers, and is subjected to heat shrinkage at a temperature of between 40 and 200 ℃, wherein the heat shrinkage is
Preferably, the thermal shrinkage rate of the thermal shrinkage strand ranges from 20% to 70% in a temperature change range of 50 ℃ to 180 ℃.
Further, the thermal shrinkage fiber tow is an uncrimped straight fiber, and the uncrimped straight fiber comprises one or more of polylactic acid fiber, polyethylene terephthalate fiber, nylon fiber, polypropylene fiber, high polyacrylonitrile fiber and shrinkage polyester fiber.
The invention will be further described with reference to the following examples of embodiments shown in the drawings.
The embodiment of the utility model provides an in the cooling of gained composite filter stick, filtration test, the sample group is the gained composite filter stick of each embodiment, and the contrast group is conventional filter stick for cigarette.
Example 1:
referring to fig. 1, there is shown a cross-sectional view of the mouthpiece end of a composite filter rod after heating for suction. In the embodiment, the base body is a hollow filter stick, the composite filter stick is prepared by introducing heat-shrinkable fiber tows into the hollow filter stick, the hollow filter stick is of a five-pointed star-shaped hollow structure, the hollow filter stick is made of a conventional cigarette material 1, namely, the hollow filter stick is obtained by molding the acetate fiber tows through the filter stick, and the outermost layer of the hollow filter stick is wrapped by a layer of packaging molding material 3. The heat-shrinkable fiber tow 2 is made of polyethylene glycol terephthalate fibers, the polyethylene glycol terephthalate fibers with the hot air shrinkage of 50% are filled into a cellulose acetate filter stick with a five-pointed star-shaped hollow structure through filter stick forming, and the weight percentage of the heat-shrinkable fiber tow to the cellulose acetate tow 1 is 1: 4, heating and sucking the cigarette to be rolled, and thermally shrinking the thermal shrinkage fibers at the central part to form a hollow Venturi structure at two ends.
The experiment is also provided with a control group and a sample group, wherein the control group adopts a single hollow acetate fiber filter stick, the sample group adopts the obtained composite filter stick, and the specific steps are that the composite filter stick with the thickness of 26mm and the single hollow acetate fiber filter stick with the thickness of 26mm are respectively compounded with a solid acetate fiber filter stick with the thickness of 7mm, and a tobacco section with the thickness of 12mm is coiled to respectively obtain a composite filter stick and a control filter stick. Referring to fig. 2, the structure of the composite filter rod includes a solid acetate fiber filter rod 4, a composite filter rod and a tobacco section 5, one end of the composite filter rod is combined with the solid acetate fiber filter rod 4, and the other end of the composite filter rod is used for rolling and connecting the tobacco section 5.
In this example, the following method was used for cigarette analysis: the volume of each aspiration was 55ml, the aspiration time was 2s, and the interval between aspirations was 30 s. The temperature test was performed at the end (inlet end) of the 33mm filter rod using a temperature probe, and the composite filter rod exhibited a cooling effect as shown in fig. 3. Compared with a single hollow acetate fiber filter stick, the composite filter stick not only provides a smoke mixing space, but also provides a certain filtering function for smoke particles, and reduces the smoke temperature.
Example 2:
in the embodiment, the substrate adopts conventional cigarette tows 1, the preparation of the composite filter rod is to simultaneously open and introduce the heat-shrinkable fiber tows 2 and the conventional cigarette tows 1 into a forming machine, and triacetin is added to be used as a plasticizer to prepare the composite filter rod; taking polyethylene terephthalate fiber with the hot air heat shrinkage rate of 50% as a heat-shrinkable fiber tow, and preparing a composite filter rod by a filter rod forming machine and an acetate fiber tow through forming, wherein the weight percentage of the heat-shrinkable fiber to the acetate fiber tow is 1: 2, the heat shrinkable fibers are centrally distributed in the central position area of the filter stick, the length of the composite filter stick is 100mm, and the physical indexes are as follows:
the 33mm composite filter stick is cut and connected with a 12mm heated cigarette, and a heat shrinkable tow positioned at the central part is subjected to heat shrinkage along with high-temperature smoke (less than 250 ℃) after being sucked to form a local hollow Venturi structure.
Compared with a single solid acetate fiber filter stick, the composite filter stick provides a mixing space for smoke. The same cigarette analysis method as in example 1 was used, and the cooling effect was exhibited as compared with the hollow filter stick.
Example 3:
the present embodiment 3 is different from embodiment 2 in that: and (2) preparing the composite filter rod by using polylactic acid fibers with the hot air heat shrinkage rate of 15% through a filter rod forming machine and an acetate fiber tow filter rod, wherein the weight percentage of the heat-shrinkable tows to the acetate fiber tows is 1: 1, the heat shrinkable fiber tows are centrally distributed in the central position area of the filter stick. The composite filter stick is connected with a heated cigarette, and the heat shrinkage fiber which is sucked at the central part is subjected to heat shrinkage along with high-temperature smoke gas to form a local hollow Venturi structure at two ends.
Compared with a solid acetate fiber filter stick, the composite filter stick provides a mixing space for smoke. The same cigarette analysis method as in example 1 was used, and the cooling effect was exhibited as compared with the hollow filter stick.
Example 4:
the present embodiment is different from embodiment 3 in that: and (2) preparing the composite filter rod by using polylactic acid fibers with the hot air heat shrinkage rate of 15% through a filter rod forming machine and an acetate fiber tow filter rod, wherein the weight percentage of the heat-shrinkable tows to the acetate fiber tows is 1: 2, the heat-shrinkable fiber tows exhibit a multi-point distribution in the cross-section of the composite filter rod, for example, along a ring and at intervals. And connecting the composite filter stick with the heated cigarette, and performing suction to ensure that the heat shrinkable fibers are subjected to heat shrinkage along with high-temperature smoke to form a plurality of local hollow Venturi structures at two ends.
Compared with a solid acetate fiber filter stick, the composite filter stick provides a mixing space for smoke. The same cigarette analysis method as in example 1 was used, and the cooling effect was exhibited as compared with the hollow filter stick.
< composite Filter rod application >
The composite filter stick with the thermal shrinkage effect is applied to cigarettes and heated cigarettes.
< preparation method of composite Filter rod >
A preparation method of the composite filter stick with the thermal contraction effect comprises the following steps:
one or more than one heat-shrinkable fiber tows and the conventional cigarette tows or the hollow filter stick structure are molded in one step on a molding machine, so that the heat-shrinkable fiber tows are distributed in a single point, multiple points or concentrated area in the cross section of the composite filter stick;
the single point and the multiple points are placed at any position of the cross section of the cigarette filter according to the design requirements of the appearance and the performance of the filter, the area concentrated distribution can also be placed at any position of the cross section of the filter according to the design requirements of the appearance and the performance of the filter, and the cross section of the area concentrated distribution can be in any shape, single or polydisperse.
On a filter stick forming machine, simultaneously opening and leading the heat-shrinkable polymer material and the cigarette tows into the forming machine, adding glycerol triacetate as a plasticizer to prepare and form a composite filter stick, or leading the heat-shrinkable polymer material into a hollow filter stick to process the composite filter stick.
The foregoing description of the embodiments is provided to facilitate understanding and application of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the embodiments herein, and those skilled in the art should understand that modifications and alterations made without departing from the scope of the present invention are within the protection scope of the present invention.
Claims (6)
1. The composite filter stick with the thermal contraction effect is characterized in that the composite filter stick is formed by compounding a thermal contraction fiber tow and a base body, the thermal contraction fiber tow is embedded into the base body along the axial direction, when a cigarette is heated for application, the thermal contraction fiber tow passes through high-temperature smoke to show thermal contraction, and two ends of the composite filter stick form a local hollow Venturi structure.
2. The composite filter stick with the heat shrinkage effect according to claim 1, wherein the heat-shrinkable fiber tow is a heat-shrinkable polymer material, is in a fiber state, is a fiber aggregate consisting of a plurality of fibers, is subjected to heat shrinkage at a temperature range of 40-200 ℃, and has a heat shrinkage rate of 10-70%.
3. The composite filter rod with the heat shrinkage effect according to claim 1, wherein the heat shrinkage rate of the heat-shrinkable tows is 20% -70% in a temperature change range of 50-180 ℃.
4. The composite filter rod with the heat-shrinkable effect according to claim 1, wherein the weight ratio of the heat-shrinkable fiber tows in the composite filter rod is 10-80%, and the weight ratio of the matrix is 20-90%.
5. The composite filter stick with heat shrinkage effect according to claim 1, wherein the substrate is a hollow filter stick, the composite filter stick fills the heat-shrinkable fiber tow into a cavity of the hollow filter stick, and the hollow filter stick comprises a tow filter stick, a paper filter stick and a hollow tube filter stick.
6. A composite filter rod with heat-shrinkable effect according to claim 1, wherein said heat-shrinkable fiber tow exhibits a single-point, multi-point or regionally concentrated distribution in the cross-section of said composite filter rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444804.1U CN212260459U (en) | 2019-12-30 | 2019-12-30 | Composite filter stick with thermal shrinkage effect |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922444804.1U CN212260459U (en) | 2019-12-30 | 2019-12-30 | Composite filter stick with thermal shrinkage effect |
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| CN212260459U true CN212260459U (en) | 2021-01-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110959909A (en) * | 2019-12-30 | 2020-04-07 | 南通醋酸纤维有限公司 | Composite filter stick with thermal shrinkage effect and preparation method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110959909A (en) * | 2019-12-30 | 2020-04-07 | 南通醋酸纤维有限公司 | Composite filter stick with thermal shrinkage effect and preparation method and application thereof |
| CN110959909B (en) * | 2019-12-30 | 2024-02-20 | 南通醋酸纤维有限公司 | Composite filter stick with heat shrinkage effect and preparation method and application thereof |
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