CN112493534A

CN112493534A - A cooling structure and heating cigarette for cigarette

Info

Publication number: CN112493534A
Application number: CN202011488077.XA
Authority: CN
Inventors: 张孟伟; 冯晓民; 尹献忠; 孟祥士; 牛亚鹏; 张智轩; 陈泽少
Original assignee: China Tobacco Henan Industrial Co Ltd
Current assignee: China Tobacco Henan Industrial Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-03-16

Abstract

The invention discloses a cooling structure for cigarettes and a heating cigarette. Wherein, the cooling structure comprises forming paper and hollow fibers; the length direction of the hollow fiber is consistent with that of the cigarette; the hollow fibers are wrapped in the forming paper to form a cylindrical structure; the hollow fiber is polytetrafluoroethylene. The invention can cool the flue gas.

Description

A cooling structure and heating cigarette for cigarette

Technical Field

The invention relates to the technical field of cigarettes, in particular to a cooling structure for cigarettes and a heating cigarette.

Background

The cigarette is heated by a special heat source at the temperature of 250-350 ℃ to release nicotine and flavor substances, thereby providing a satisfying feeling for smokers, avoiding more harmful substances generated by pyrolysis under the ignition condition of the traditional cigarette and reducing the damage to the health of human bodies. In various new types of tobacco products, the smoking quality and smoking habits of heated cigarettes are closest to those of conventional cigarettes.

The mainstream smoke of the traditional cigarette is filtered by the cigarette strip and the filter stick, the temperature of the smoke reaching the oral cavity of a smoker reaches 35-90 ℃, and the smoker does not feel scorching because the smoke is relatively dry. And although the heating temperature of the heated cigarette is low, the smoke water content is high, the length of the cigarette is short, the smoke passage is short, the cigarette is in a closed condition of a heating appliance, the heat exchange efficiency with the outside air is low, and the sensory temperature of the mainstream smoke reaching the oral cavity is high. Therefore, it is necessary to reduce the temperature of the mainstream smoke inlet of the heated cigarette by adopting a proper means. At present, the cooling measures researched at home and abroad are in two aspects of adding cooling materials and designing a cooling structure, and the cooling materials added at the cigarette filtering section mainly comprise phase-change cooling materials, water-based cooling materials and the like to achieve the transfer of smoke heat; the cooling structure design mainly comprises a cavity cooling structure, a lengthened flue gas channel, a Venturi tube cooling structure and other structure adjustments to realize flue gas cooling.

Disclosure of Invention

The invention aims to provide a cooling structure for cigarettes and a heating cigarette, which are used for solving the defects in the prior art and can be used for cooling smoke.

The invention provides a cooling structure for cigarettes, which comprises forming paper and hollow fibers;

the length direction of the hollow fiber is consistent with that of the cigarette; the hollow fibers are wrapped in the forming paper to form a cylindrical structure;

the hollow fiber is polytetrafluoroethylene.

The cooling structure for the cigarette as described above, wherein optionally, an additive is distributed in the gaps of the hollow fibers, and the additive is configured to generate fragrance by atomization when smoke passes through the gaps of the hollow fibers.

A cooling structure for a cigarette as described above, wherein optionally the cooling structure is connected between a tobacco material section and a filter section of the cigarette.

The invention also provides a heated cigarette, wherein the heated cigarette is of a quaternary composite structure, and the quaternary composite structure comprises the cooling structure.

The heated cigarette as described above, wherein optionally the heated cigarette further comprises a tobacco material segment, a hollow segment and a filter segment;

the tobacco material section, the hollow section, the cooling structure and the filter section are sequentially connected along the length direction of the heated cigarette; so that the smoke generated by the tobacco material section during heating can sequentially pass through the tobacco material section, the hollow section, the cooling structure and the filter section.

The heated cigarette as described above, wherein optionally the tobacco mass section, the hollow section and the cooling section are wrapped in the same paper forming a cylindrical structure.

Compared with the prior art, the embodiment 2 of the invention at least has the following beneficial effects:

the invention 1, the hollow fiber is selected to cool the flue gas, and particularly, the polytetrafluoroethylene is used as the main material for cooling. The polytetrafluoroethylene has excellent chemical stability, corrosion resistance, high lubrication non-adhesiveness and good ageing resistance, and can be used for a long time at the temperature of 200-260 ℃. Therefore, it is possible to ensure the heating of the smoke. Make the cooling structure all the time have good cooling function, can not appear after a period of cigarette heating, the problem that the cooling effect descends. The problem that the sensory temperature of the smoke of the heated cigarette is too high after the smoke reaches the oral cavity can be effectively prevented;

2, because the polytetrafluoroethylene has the minimum surface tension in the solid material and does not adhere to any substance, the interception and the adsorption of the main stream smoke when passing through the cooling section are reduced, and the change of the smoke quality and the smoke quantity is avoided. Therefore, the smoke quality and the smoke quantity are ensured while the smoke is cooled;

3, because the additive is arranged between the hollow fibers, when hotter flue gas passes through, on one hand, heat exchange is generated between the flue gas and the additive, so that the temperature of the flue gas is reduced; on the other hand, the additive forms gas after the temperature is increased, namely, the gas is evaporated or sublimated, and the process further absorbs heat to further reduce the smoke; namely, in the process of temperature reduction, heat of the flue gas is absorbed through heat exchange and gasification of the additive;

4, the additive is used, so that the temperature can be reduced, and the fragrance can be generated after gasification, so that the quality of the smoke is further improved;

5, because hollow fiber is porous structure, when the flue gas passes through, can enter into hollow fiber's porous structure in, just also increased the contact surface between flue gas and the polytetrafluoroethylene, can accelerate thermal transmission to improve the cooling effect.

Drawings

FIG. 1 is a schematic view of a cigarette proposed by the present invention;

FIG. 2 is a cross-sectional view of the cooling structure proposed by the present invention;

description of reference numerals: 1-forming paper, 2-hollow fiber, 3-tobacco material segment, 4-filter segment and 5-hollow segment.

Detailed Description

The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.

Example 1

Referring to fig. 1 and 2, the invention provides a cooling structure for a cigarette, which is used for a non-combustion cigarette, and comprises a forming paper 1 and hollow fibers 2; specifically, the forming paper 1 is used to wrap the outer circumference of the hollow fibers 2 so that the hollow fibers 2 are wrapped into a cylindrical structure at the time of production. The length direction of the hollow fiber 2 is consistent with that of the cigarette; the hollow fibers 2 are coated in the forming paper 1 to form a cylindrical structure; the hollow fibers 2 are made of polytetrafluoroethylene.

When the mouth-cooling device is used, smoke generated after heating can enter the oral cavity only after passing through the temperature-reducing structure. Because the polytetrafluoroethylene is of a porous structure, when smoke passes through, the smoke can enter the porous structure, so that the contact area of the smoke and the polytetrafluoroethylene is invisibly increased, the heat exchange efficiency can be improved, and the cooling effect is favorably improved.

In addition, because the polytetrafluoroethylene has the minimum surface tension in the solid material and does not adhere to any substances, the interception and the adsorption of the mainstream smoke when the mainstream smoke passes through the cooling section are reduced, and the change of the smoke quality and the smoke quantity is avoided. Therefore, the smoke quality and the smoke quantity are ensured while the smoke is cooled.

In a preferred embodiment, the hollow fibers 2 have an additive distributed in the interstices thereof, the additive being configured to atomize to produce a scent when smoke passes through the interstices of the hollow fibers 2. Due to the fact that the additives are arranged among the hollow fibers, when hot smoke passes through, on one hand, heat exchange is generated between the smoke and the additives, and the temperature of the smoke is reduced; on the other hand, the additive forms gas after the temperature is increased, namely, the gas is evaporated or sublimated, and the process further absorbs heat to further reduce the smoke; namely, in the process of temperature reduction, heat of the flue gas is absorbed through heat exchange and gasification of the additive; the use of the additive can not only reduce the temperature, but also generate the fragrance after gasification, thereby further improving the quality of the smoke. In specific implementation, the flavor commonly used in the cigarette process can be selected, and the flavor is preferably easy to gasify. For this reason, those skilled in the art can select the target according to the need, and the detailed description is omitted.

The cooling structure is connected between the tobacco material section 3 and the filter tip section 4 of the cigarette. So, can guarantee that the flue gas can be earlier through the cooling structure after producing, reentrant in the filter tip section 4.

Example 2

Referring to fig. 1, the cylinder structure outside the forming paper 1 in fig. 1 is a heater, which is not labeled in the figure and is only used as a reference. The invention provides a heated cigarette, wherein the heated cigarette is of a quaternary composite structure, and the quaternary composite structure comprises a cooling structure as in embodiment 1.

As a preferred realization, the heated cigarette further comprises a tobacco material section 3, a hollow section 5 and a filter section 4; the tobacco material section 3, the hollow section 5, the cooling structure and the filter section 4 are sequentially connected along the length direction of the heated cigarette; so that the smoke generated by the tobacco material section 3 during heating can pass through the tobacco material section 3, the hollow section 5, the cooling structure and the filter section 4 in sequence. Specifically, the tobacco material section 3, the hollow section 5 and the cooling section are wrapped in the same forming paper 1 to form a cylindrical structure.

The embodiment has at least the following beneficial effects:

The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.

Claims

1. The utility model provides a cooling structure for cigarette which characterized in that: comprises a forming paper (1) and hollow fibers (2);

the length direction of the hollow fiber (2) is consistent with that of the cigarette; the hollow fibers (2) are coated in the forming paper (1) to form a cylindrical structure;

the hollow fibers (2) are made of polytetrafluoroethylene.

2. The cooling structure for cigarettes according to claim 1, wherein: the hollow fibers (2) are distributed with additives in the gaps, and the additives are arranged to be atomized to generate fragrance when smoke passes through the gaps of the hollow fibers (2).

3. The cooling structure for cigarettes according to claim 2, wherein: the cooling structure is connected between the tobacco material section (3) and the filter tip section (4) of the cigarette.

4. A heating cigarette is characterized in that: the heated cigarette is a quaternary composite structure comprising the cooling structure of any one of claims 1-3.

5. The heated cigarette of claim 4, wherein: the heated cigarette also comprises a tobacco material section (3), a hollow section (5) and a filter section (4);

the tobacco material section (3), the hollow section (5), the cooling structure and the filter section (4) are sequentially connected along the length direction of the heated cigarette; so that the smoke generated by the tobacco material section (3) during heating can pass through the tobacco material section (3), the hollow section (5), the cooling structure and the filter section (4) in sequence.

6. The heated cigarette of claim 5, wherein: the tobacco material section (3), the hollow section (5) and the cooling section are coated in the same forming paper (1) to form a cylindrical structure.