RU205534U1 - FILTER HEATED WITHOUT BURNING CIGARETTE - Google Patents

Abstract

A filter (10) of a cigarette heated without burning is disclosed. The filter (10) of a cigarette heated without combustion contains a first part and a second part connected to it. The first part is a filter plug (100), and the second part contains at least one central hollow section (300) and at least one cooling section (200). The cooling section (200) contains at least one through passage (210) in the form of a cavity. The central region of the central hollow portion (300) has a through-cavity structure. When the tobacco plug (20) is heated by the heating element during smoking, the smoke passes through the hollow portion (300), the cooling portion (200) and the filter plug (100). Accordingly, the smoke throughput and smoke concentration are increased while the temperature of the smoke is lowered, and thus the smokable quality of the cigarette is improved.

Description

This utility model claims priority from Chinese patent application registry number 201711284850.9, filed on December 7, 2017 with the China Patent Office (CNIPA) and entitled "Non-combustion heated cigarette filter and non-combustion heated tobacco product", the contents of which are hereby incorporated by reference in their entirety ...

Technology area

The present invention relates to the processing and manufacture of cigarettes and, in particular, to the filter of a non-fired cigarette.

State of the art

With the increasing efforts of governments in various countries to combat smoking and the focus on people's health, for conventional paper-wrapped cigarettes, the profit space for the tobacco industry is shrinking and therefore active research and development of new tobacco products with reduced emission is required. harmful ingredients of tobacco.

In the case of a tobacco product heated without combustion, the tobacco particles are heated (up to approximately 300 ° C) using a special heat source, as a result of which they only heat up, but do not burn, while the temperature of the tobacco particles is much lower than that of a conventional cigarette, so that the possibility of a significant reduction in the amount of harmful chemical ingredients formed as a result of high-temperature combustion and pyrolysis of tobacco; at the same time, unlike the smoldering of conventional cigarettes, tobacco particles in non-combusted tobacco products (cigarettes that do not burn when heated) remain unheated during smoking breaks, and therefore, the amount of side stream is also significantly reduced smoke and smoke pollution of the environment.

With regard to the unique advantages of non-fired cigarettes, research on these cigarettes is deepening, however, comparatively less research has been devoted to the design of commercially available cigarettes and the problems of relatively low smoke throughput, low concentration of generated smoke, and the like. during smoking are still stored in existing non-combustion heated tobacco products.

Disclosure of the essence of the utility model

This utility model provides a filter for a non-fired cigarette. The filter of a non-heated cigarette effectively increases the smoke throughput and smoke concentration, and at the same time reduces the smoke temperature, improves the smoking quality of cigarettes, etc.

The filter of a non-combustion heated cigarette comprises a first part and a second part, which are connected to each other, the first part being a filter plug, the second part comprising at least one hollow portion and at least one cooling portion, each cooling portion comprising at least one through passage in the form of a cavity, and the hollow section contains a middle region in the form of a structure with at least one through cavity, the diameter of each of which is greater than or equal to the diameter of the corresponding through passage in the form of a cavity.

The filter of a non-combustion heated cigarette contains a first part and a second part that are connected to each other, the first part being a filter plug, the second part including one hollow portion and one cooling portion, the cooling portion comprising one through passage in the form of a cavity, and a hollow portion has a middle region in the form of a structure with a through cavity, which communicates with the specified through passage in the form of a cavity.

If necessary, said at least one hollow section and said at least one cooling section are arranged in series along the direction of the length of the second part, each cavity of the hollow section communicates with a corresponding through passage in the form of a cavity in the cooling section, and each hollow section or cooling section is adjacent to the filter plug.

If necessary, there are two hollow sections and one cooling section, and the cooling section is located between the two hollow sections, the two ends of each through passage in the form of a cavity on the cooling section respectively communicate with the cavities of the adjacent hollow sections at the respective ends, and one of the hollow sections is adjacent to filter plug.

If necessary, there are one hollow section and two cooling sections, and the hollow section is located between the two cooling sections, the two ends of each cavity of the hollow section are respectively communicated with through passages in the form of cavities in adjacent cooling sections at the respective ends, and one of the cooling sections is adjacent to filter plug.

If necessary, each cooling section contains a plurality of through passages in the form of cavities, located parallel to each other and evenly distributed over the cooling section.

If necessary, the axis of each cavity of the hollow section is located on one straight line or parallel to the axis of the corresponding through passage in the form of a cavity on the cooling section.

If necessary, each cavity of the hollow section has a diameter smaller than the diameter of each through passage in the form of a cavity in the cooling section.

Optionally, said at least one hollow section and said at least one cooling section are arranged sequentially along the direction of the length of the second part, each cavity of the hollow section communicates with a corresponding through passage in the form of a cavity in the cooling section, and the hollow section or cooling section is adjacent with filter plug.

If required, the filter plug is a cellulose acetate filter plug.

If necessary, each cooling section has a length of 5-30 mm.

If necessary, each cooling section is made of a high molecular weight polymeric material based on polylactic acid.

If necessary, each hollow section has a length of 5-30 mm.

If necessary, said at least one hollow section and said at least one cooling section are made in the form of a single-part structure of the same material, and the cross-sectional area of the cavities of the specified at least one hollow section is greater than or equal to the cross-sectional area of the through passages in the form of cavities.

If necessary, the diameter of each cavity of the hollow portion is larger than the diameter of each cavity through passage, and the cross-sectional area of the cavities of the cooling portion is equal to the cross-sectional area of the cavity through passages in the cooling portion.

If necessary, each through passage in the form of a cavity has a diameter of 0.2-7 mm.

If necessary, each cavity of the hollow portion has a diameter of 0.2-7 mm.

The filter of a non-fired cigarette according to the present invention can be used in a non-fired tobacco product containing a non-fired cigarette filter and a tobacco plug, and the non-fired cigarette filter is the above-described non-fired cigarette filter, the tobacco plug is adjacent to the second the non-fired cigarette filter part, and the non-fired cigarette filter and tobacco plug are wrapped on the outside with rim paper.

Optionally, the tobacco plug contains several tobacco particles that are arranged in a regular and orderly manner in the radial direction of the cigarette.

The filter of a non-fired cigarette can be used in a method of using the aforementioned non-fired tobacco product, comprising the following steps:

inserting a heater into the tobacco plug to heat the tobacco plug; and

the user smokes on the filter plug of the non-combustion heated cigarette, wherein the smoke generated by the tobacco plug, after passing through said at least one hollow portion and said at least one cooling portion of the second part, reaches the filter plug and then reaches the end at which the user carries out smoking, after filtering it with a filter plug.

Compared to the prior art, the non-combustion heated cigarette filter and the non-combustion heated tobacco product according to the present invention provide the following beneficial effects:

(1) The filter of a non-combustion heated cigarette according to the present invention comprises a filter plug, at least one cooling portion, and at least one hollow portion. When smoking, after the tobacco portion has been heated with a suitable heater, the smoke passes through said at least one hollow portion, said at least one cooling portion and a filter plug, said at least one hollow portion collecting and retaining the smoke, and said at least one cooling portion cools the smoke, which effectively increases the smoke throughput and smoke concentration, and at the same time lowers the temperature of the smoke, improving the smoking quality of the cigarette and the like.

(2) In addition, since through passages in the form of cavities are used in said at least one cooling section of the filter of a non-combusted cigarette according to the present invention, on the one hand, when smoke passes through said at least one cooling section, the contact area with cooling section, causing the effect of reducing the temperature of the smoke, and on the other hand, through passages in the form of cavities significantly increase the smoke throughput, ensuring the saturation of the smoke volume.

In general, the special design according to the present utility model has the abovementioned advantages and practical value, and furthermore, similar methods are not disclosed or used for products of the same type, so that the present utility model is truly innovative, provides useful and practical effects. , has improved efficiency over the prior art and, therefore, is relatively practical and of great industrial value.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are specifically illustrated below in order to provide detailed description in conjunction with the accompanying drawings.

Brief Description of Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings to be used to illustrate the embodiments are given below in general terms, and it should be understood that the accompanying drawings below are only illustrative of some embodiments of the present invention and therefore, they should not be construed as limiting its scope, so that those skilled in the art will be able to create other relevant accompanying drawings corresponding to the aforementioned accompanying drawings without any creative effort.

FIG. 1 is a first structural schematic view of a non-combustion heated tobacco product proposed in an embodiment of the present invention;

in fig. 2 shows a second structural schematic view of a non-combustion-heated tobacco product proposed in an embodiment of the present invention;

in fig. 3 is a third structural schematic view of a non-combustion heated tobacco product according to an embodiment of the present invention;

in fig. 4 is a fourth structural schematic view of a non-combustion heated tobacco product proposed in an embodiment of the present invention; and

in fig. 5 is a structural schematic view of a cooling portion of a non-combustion heated cigarette filter proposed in an embodiment of the present invention.

Reference designations of the main elements:

1 - tobacco product heated without combustion;

10 - filter of a cigarette heated without burning;

20 - tobacco plug;

30 - edging paper;

100 - filter plug;

200 - cooling section;

210 — through passage in the form of a cavity;

300 is a hollow section.

Implementation of the utility model.

In order to facilitate understanding of the present invention, a non-combustion-heated cigarette filter, non-combustion-heated tobacco product and a method of using the same are described below in a more exhaustive manner with reference to the accompanying accompanying drawings. Preferred embodiments of a non-fired cigarette filter, non-fired tobacco product filter and a method for using the same are shown in the accompanying drawings. However, the non-fired cigarette filter and the non-fired tobacco product can be implemented in many different forms, but are not limited to the embodiments described herein. On the contrary, these embodiments are provided merely to make the present description of a non-fired cigarette filter, non-fired tobacco product filter and method of use clearer and more comprehensive.

Hereinafter, the term "comprises" or "may contain", which may be used in various embodiments of the present invention, indicates the presence of a disclosed function, operation, or element, and does not limit the addition of one or more functions, operations or elements. In addition, terms such as "contains", "has" and related terms used in various embodiments of the present utility model are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the above, and not should be considered as initially excluding the possibility of the presence of one or more other features, numbers, steps, operations, elements, components or combinations of the above, or the possibility of adding one or more other features, steps, operations, elements, components or combinations of the above.

In various embodiments of the present invention, the conjunction “or” or the expression “at least one of A and / or B” includes any combination or all combinations of what is indicated by the letters. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both of A and B.

It should be understood that in the description of the present invention, the relationship of orientation or position, expressed by the terms "longitudinal", "horizontal", "upper", "lower", "front", "back", "left", "right", "vertical "," Horizontal "," top "," bottom "," inner "," outer ", etc., are based on the orientation or position relations shown in the accompanying drawings, only to facilitate the description of the present invention and to simplify the description, and not to indicate or imply that the corresponding devices or elements must be in a specific orientation or made and operate in a specific orientation, and, therefore, they should not be construed as limiting the present utility model. In addition, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying importance in this regard.

In the description of the present utility model, descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example" or "some examples" indicate that specific features, designs, materials or characteristics described in conjunction with the description of a given embodiment or example are included in at least one embodiment or example of the present utility model. As used herein, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, designs, materials, or characteristics described may be combined in any appropriate manner in any one or more embodiments or examples.

It should be pointed out that in the description of the present utility model, unless otherwise indicated or defined, the terms "support", "connection" or "connection" should be considered in a broad sense, for example, it can be a mechanical connection or an electrical connection, it can also be internal switching between two elements, direct communication or indirect communication through intermediate elements, and those skilled in the art can understand the specific meanings of the above terms in accordance with specific conditions. Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art in relation to various embodiments of the present utility model. Terms (such as terms defined in commonly used dictionaries) should be considered to have the same meaning as they have in the context of the art, and should not be considered in an idealized or overly formal sense unless clearly defined in various embodiments of this utility model.

As shown in FIG. 1-4, the present invention provides a filter 10 for a non-fired cigarette comprising a first part (or part) and a second part (or part) that are connected to each other, the first part being a filter plug (or filter rod) 100, the second part may comprise at least one cooling section 200 and at least one hollow section 300, the cooling section 200 may comprise at least one through passage 210 in the form of a cavity, the hollow section 300 has a middle region in the form of a structure of at least with one through cavity, and the specified at least one cavity communicates with the specified at least one through passage 210 in the form of a cavity.

As shown in FIG. 1-4, the present invention also provides a non-combustion heated tobacco product 1 comprising a non-combustion heated cigarette filter 10 and a tobacco plug (or tobacco rod) 20, wherein the non-combustion heated cigarette filter 10 is the above-described non-combustion heated cigarette filter 10. , the tobacco plug 20 is adjacent to the second portion of the non-combustion cigarette filter 10, and the non-combustion cigarette filter 10 and the tobacco plug 20 are wrapped on the outside with rim paper.

The non-fired cigarette filter of the present invention comprises a filter plug 100 for filtering substances such as tar and nicotine in smoke, a cooling portion 200 for cooling high-temperature smoke flowing therethrough, and a hollow portion 300 for collecting and storing flowing through it. smoke; during smoking, a heater (or heating element) is inserted into the tobacco plug, after heating the tobacco plug with a suitable heater, the user smokes on the filter plug of the filter of a cigarette heated without burning, the smoke passes through the hollow section 300 and the cooling portion 200 of the second part and the filter plug of the first part under the action of smoking by the user, and finally the smoke reaches the smoke outlet in the filter plug 100. In the above-described embodiment, each cavity of the hollow portion 300 is a relatively large receiving cavity that is capable of collecting and storing the smoke, so that the throughput is effectively increased smoke and smoke concentration; the cavity-shaped through passage 210 in the cooling section 200 cools the smoke flowing therethrough, thereby reducing the temperature of the smoke and the amount of harmful gases generated by the reaction between the high temperature smoke having an excessively high temperature and other components, which improves the user's smoking experience and improves the smoking quality of cigarettes and the like; in addition, due to the cooling of the smoke by the cooling section 200, the cavity-like arrangement of the through passage 210 makes it possible to reduce the interference created by the cooling section 200 for the circulation of the smoke, and to increase the flow rate of the smoke, thereby saturating the volume of smoke drawn in by the user.

In the above embodiment, the filter plug 100, the cooling portion 200, the hollow portion 300 and the tobacco plug 20 of the non-fired cigarette filter can all have the same cylindrical shape, so that when wrapped on the outside by the rim wrapper 30, the uniform shape provides a comparatively good tightness of the wrapper.

Preferably, the filter plug 100 may be a cellulose acetate filter plug 100.

Cellulose acetate is a thermoplastic polymer obtained by esterification in the presence of a catalyst using acetic acid as a solvent and acetic anhydride as an acetylating agent; cellulose acetate is a type of organic cellulose ester. Cellulose acetate, as a porous membrane material, has characteristics such as high selectivity, significant water flow through the membrane, environmental protection and non-toxicity, it is easy to process, etc., and the filter plug 100 made of this material has much less negative impact on users and is able to effectively filter substances such as tar and nicotine in the smoke, so that a good filtering effect is provided and the consumer properties of the tobacco product heated without burning are further improved 1.

In addition, the filter plug 100 may also be other composite filter plugs such as an activated carbon / cellulose acetate filter plug or the like.

Preferably, as shown in FIG. 5, the cooling portion 200 may comprise a plurality of cavity-like through passages 210, each of which is a cavity and is used as a passage, for example, cavity through passages 3, 4, 6, or 7. More preferably, said plurality of cavity-like through passages 210 are parallel to each other and evenly spaced over the cooling portion 200.

The cross-section of each of the above cavity through passages 210 is preferably circular in shape, and its diameter is preferably 0.2-7 mm, for example 0.2 mm, 0.7 mm, 1.2 mm, 1.8 mm, 2 .5mm, 3mm, 4mm, 5mm, 6mm or 7mm. Of course, the cross-section of each of the hollow through passages 210 may also have a square shape or other shapes.

It should be understood that by using said plurality of cavity-shaped through passages 210 in the cooling section 200, on the one hand, when the smoke passes through the cooling section 200, it is possible for the smoke to come into contact with the side walls of said plurality of cavity-shaped through passageways 210 for heat dissipation, so that the contact area with the cooling portion 200 is increased and the effect of reducing the temperature of the smoke is enhanced, and, on the other hand, said plurality of void-like through passages 210 significantly increase the smoke throughput, ensuring the saturation of the smoke volume.

More specifically, said plurality of cavity through passages 210 in the cooling portion 200 may be parallel to each other and evenly distributed over the cooling portion 200. Since said plurality of cavity through passageways 210 within the cooling portion 200 are arranged parallel to each other, the smoke has a constant the flow direction when passing through the cooling portion 200, whereby cooling the smoke makes it possible to effectively improve the stability of the smoke passing through the cooling portion 200, correspondingly increasing the flow rate of the smoke and increasing the saturation of the smoke.

In the present invention, the axis of each cavity of the hollow section 300 may be located on a straight line or parallel to the axis of the cavity-like through passage 210 on the cooling section 200. When smoke passes through the at least one cavity and the cavity-like through passageways 210, the axis of said of at least one cavity and the axes of the through passages in the form of cavities are located on one straight line or parallel to each other, so that the direction of the smoke flow does not change, which makes it possible to further improve the stability of the smoke when it flows through the second part, and also provides the possibility of an additional increase flow rate and smoke saturation.

It should be noted that if the cooling section 200 comprises one cavity through passage 210, then preferably this cavity through passage 210 is located exactly in the middle of the cooling section coaxially with the cooling section 200, and the cavity through passage 210 has a diameter of 4- 7.8mm, such as 4mm, 5mm, 6mm, 7mm, 7.8mm, etc.

Preferably, the cooling portion 200 and the hollow portion 300 may have a length of 5-30 mm, for example 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm.

Preferably, both of the cooling portion 200 and the hollow portion 300 have a cylindrical shape, and the cooling portion 200 has a diameter of 5-8 mm, such as 5 mm, 6 mm, 7 mm, or 8 mm.

Preferably, the hollow portion 300 may have a diameter of 5-8 mm, such as 5 mm, 6 mm, 7 mm, or 8 mm.

Each cavity of the hollow portion may have a diameter of 2-7 mm, preferably each cavity of the hollow portion has a diameter of 2-5 mm, for example 2 mm, 3 mm, 4 mm or 5 mm.

Preferably, the hollow section 300 and the cooling section 200 may have a single-piece structure and be made of the same material, and the cross-sectional area of the specified at least one cavity of the hollow section 300 may be greater than or equal to the cross-sectional area of the through passage (s) 210 in the form of a cavity, and it can also be less than the cross-sectional area of the through passage (s) 210 in the form of a cavity (cavities). Since the hollow section 300 and the cooling section 200 are made in a single-piece structure of the same material, on the one hand, it is possible to increase the convenience of manufacturing the second part, thereby reducing the manufacturing cost, and on the other hand, it is possible to further increase the strength of the connection between the hollow section 300 and cooling section 200; in addition, the integrity of the second part is improved and, accordingly, the convenience and strength of wrapping the filter 10 with the heated without burning cigarette and the tobacco plug 20 with rim paper is increased.

It should be noted here that the above expression "cross-sectional area of the cavity (s) of hollow portion 300" refers to the total cross-sectional area of all of said one or more cavities through which smoke can pass if the hollow portion 300 has one, two or more and, similarly, the above expression "cross-sectional area of cavity (s) through passage (s) 210" refers to the total cross-sectional area of all cavity through passage (s) 210 through which smoke can pass if the cooling section 200 there are one, two or more through passages 210 in the form of cavities.

More specifically, the diameter of each cavity of the hollow portion 300 may be greater than the diameter of each cavity through passage 210 in the cooling portion 200, and the cross-sectional area of said at least one cavity of the hollow portion 300 is equal to the cross-sectional area of the through passage (s) 210 in the form of cavity (s) in the cooling section 200. This document describes a specific example in which the diameter of each individual cavity is greater than the diameter of each individual through passage 210 in the form of a cavity, and the total cross-sectional area of the specified at least one cavity of the hollow section is equal to the total cross-sectional area of the cavity through passages in the cooling portion, and accordingly, it can be seen that the number of cavity through passages 210 in the cooling portion 200 is greater than the number of cavities in the hollow portion 300.

In addition, the hollow section 300 and the cooling section 200 can also be made of different materials, with the cooling section 200 being made of polylactic acid material or paper material, and the hollow section 300 being made of cellulose acetate material.

It should be noted that the cooling portion 200 can be made of a high molecular weight polymeric material based on polylactic acid, so that when smoke passes therethrough, undesirable odors or deformations of the cigarette due to excessively high smoke temperature will not occur, and it is possible to effectively increase the level of comfort when smoking by the user.

Preferably, the tobacco plug 20 is formed by a plurality of tobacco particles that are disposed adjacent to each other in a regular and orderly manner in the radial direction of the cigarette.

It should be noted that the tobacco leaves used in the tobacco plug 20 may be artificial reconstituted tobacco leaves such as reconstituted tobacco leaves made using a papermaking process, reconstituted tobacco leaves made using a dry process, reconstituted tobacco leaves made using a dry process, reconstituted tobacco leaves tobacco, made using a rolling process, or the like.

It should be noted that, due to the ordered arrangement of tobacco particles, also ordered gaps are formed between the tobacco particles, which significantly increases the porosity compared to the disordered tobacco particles and provides good air permeability and uniformity of air flow inside the cigarettes, and the ordered tobacco particles and The spaced gaps they create provide a substantially straight airflow path for smoke to circulate, which reduces smoking resistance and smoke absorption and improves smoke passage efficiency, resulting in increased smoke throughput and saturation of the smoke drawn in by the user.

As shown in FIG. 1, a non-combustion-heated tobacco product 1 comprises a non-combustion-heated cigarette filter 10 and a tobacco plug 20, and the non-combustion cigarette filter 10 comprises a cellulose acetate filter plug 100, a cooling portion 200 and a hollow portion 300 that are connected in series, the cooling portion 200 comprises a plurality of the through passages 210 are in the form of cavities, and the middle region of the hollow section 300 is made in the form of a structure with at least one through cavity. The wall thickness of the hollow portion 300 is slightly greater than the wall thickness of the outer layer of the cooling portion 200. In the above embodiment, the cooling portion 200 may be made of polylactic acid material, and the hollow portion 300 can be made of cellulose acetate material.

This document describes a specific example in which there is one cooling section 200 and one hollow section 300, and inside the cooling section 200 there are many through passages 210, and the cavities of the hollow section 300 have a diameter greater than or equal to the diameter of the cooling section 200. Tobacco plug 20 is adjacent to the hollow portion 300, the hollow portion 300 being located upstream of the tobacco plug 20, and the non-combusted cigarette filter 10 and the tobacco plug 20 are wrapped with rim paper 30 to form a single cigarette.

When using the above non-combustion-heated tobacco article 1 for smoking, insert the tobacco plug 20 into the corresponding heater for heating. After heating is complete, the smoker smokes on the acetylcellulose filter plug. The smoke first passes through the hollow portion 300. The hollow portion 300 with a relatively large void space not only has a smoke collection function, but it also has a smoke storage function, which makes the smoke rich. The smoke, after temporarily staying at the site of the cavity of the hollow section 300, quickly passes through the cooling section 200. The specified plurality of through passages 210 in the form of cavities in the cooling section 200 allows the contact area between the smoke and the cooling section 200 to increase and the temperature of the smoke can be reduced, which makes it difficult burning the lips of the smoker, while positioning the specified plurality of through passages 210 in the form of cavities allows smoke to pass through them quickly, which reduces the pressure drop between the two ends of the cigarette, reduces smoke loss and improves the quality of smoking.

As shown in FIG. 2, a non-combustion-heated tobacco product 1 comprises a filter 10 of a non-combustion cigarette and a tobacco plug 20, wherein the filter 10 of a non-combustion cigarette contains a cellulose acetate filter plug 100, a cooling portion 200 and a hollow portion 300, which are connected in series, and the cooling portion 200 comprises one through passage 210 in the form of a cavity, the middle region of the hollow section 300 is in the form of a structure with a through cavity, and the wall thickness of the hollow section 300 is slightly greater than the wall thickness of the cooling section 200. In the above embodiment, the cooling section 200 may be made of cellulose acetate material.

This document describes a specific example in which there is one hollow section 300 and one cooling section 200, and inside the cooling section 200 there is one through passage 210 in the form of a cavity, and each cavity of the hollow section 300 has a diameter less than the diameter of the through passage 210 in a cavity in the cooling portion 200. The tobacco plug 20 is adjacent to the hollow portion 300, the hollow portion 300 is located upstream of the tobacco plug 20, and the non-fired cigarette filter 10 and the tobacco plug 20 are wrapped with rim paper to form a single cigarette.

When using the above non-combustion-heated tobacco article 1 for smoking, insert the tobacco plug 20 into the corresponding heater for heating. After heating is complete, the smoker smokes on the acetylcellulose filter plug 100. The smoke passes through the hollow portion 300. The smoke passes through the hollow portion 300. After the smoke is collected by the hollow portion 300, the smoke passes through the cooling portion 200. The cooling portion 200 uses the hollow portion the structure of the paper material as a chamber for retaining smoke, which ensures the saturation of the intake volume of smoke, increases the concentration of smoke and improves the quality of smoking.

As shown in FIG. 3, a non-combustion-heated tobacco product 1 comprises a non-combustion-heated cigarette filter 10 and a tobacco plug 20, wherein the non-combustion cigarette filter 10 comprises a cellulose acetate filter plug 100, a cooling portion 200 and a hollow portion 300, which are integrally formed, a cooling portion 200 contains a plurality of through passages 210 in the form of cavities, and the middle region of the hollow section 300 is made in the form of a structure with at least one through cavity. The cooling section 200 is located in the middle of the hollow section 300.

This document describes a specific example in which there are two hollow portions 300 and one cooling portion 200, and within the cooling portion 200 there are a plurality of through-passages 210 in the form of cavities, with each cavity of the hollow portion 300 having a diameter greater than or equal to the diameter of the corresponding through-pass 210 a passage in the form of a cavity in the cooling section 200; more specifically, the cooling portion 200 is located between two hollow portions 300, the cellulose acetate filter plug 100 is adjacent to the free end of one of the two hollow portions 300 and is located upstream of this hollow portion 300, and the tobacco plug 20 is adjacent to the free end of the other hollow portion section 300 and is located downstream of this hollow section 300, i. the filter plug, the hollow portion 300 and the cooling portion 200 of the second portion, and the tobacco plug 20 are arranged in series in the upstream downstream direction. The non-combusted cigarette filter 10 and the tobacco plug 20 are wrapped in rim paper to form a single cigarette.

It should be noted that the direction towards the end of the filter plug 100 in the cigarette is defined as the direction upstream, and vice versa, the direction towards the end of the tobacco plug 20 is defined as the direction downstream.

When using the above-described non-combustion-heated tobacco article 1 for smoking, insert the tobacco plug 20 into the corresponding heater for heating. After heating is complete, the smoker smokes on the cellulose acetate filter plug 100. The smoke passes through one of the hollow sections 300. After collection, the smoke passes through the cooling section 200 and then passes through another hollow section 300, and when the smoke passes through the second section, not only the temperature decreases of smoke, and the concentration of smoke is increased, but also one recovery operation in the rolling and reconstitution of cigarettes is eliminated, thereby increasing the production efficiency and reducing the cost of the cigarettes.

As shown in FIG. 4, a non-combustion-heated tobacco product 1 comprises a non-combustion-heated cigarette filter 10 and a tobacco plug 20, wherein the non-combustion cigarette filter 10 comprises a cellulose acetate filter plug 100, a cooling portion 200 and a hollow portion 300, which are integrally molded, a cooling portion 200 contains a plurality of through passages 210 in the form of cavities, and the middle region of the hollow section 300 is made in the form of a structure with at least one through cavity.

This document describes a specific example in which there are two cooling sections 200 and one hollow section 300, and within each cooling section 200 there are a plurality of through passages 210 in the form of cavities, and each cavity of the hollow section 300 has a diameter greater than or equal to the diameter of the corresponding through a passageway 210 in the form of a cavity in the cooling section 200; more specifically, the hollow portion 300 is located between the two cooling portions 200, the cellulose acetate filter plug 100 and the tobacco plug 20 are respectively adjacent to the cooling portions at the two ends of the hollow portion 300, and the non-fired cigarette filter 10 and tobacco plug 20 are wrapped in rim paper to form a single cigarette.

When using the above-described non-combustion-heated tobacco article 1 for smoking, insert the tobacco plug 20 into the corresponding heater for heating. After heating is complete, the smoker smokes on the cellulose acetate filter plug 100. The smoke passes through the cooling portion 200 at one end of the hollow portion 300, then passes through the hollow portion 300, and then passes through the cooling portion 200 at the other end of the hollow portion 300 and through the cellulose acetate filter plug. 100, whereby not only the temperature of the smoke is lowered and the concentration of the smoke is increased, but also one operation of the rolling and reconstitution recovery of cigarettes is eliminated, which improves production efficiency and reduces the cost of cigarettes.

It should be noted here that the names of the connection relations, such as "connected", "are adjacent", etc., between the first part and the second part or between the cooling section 200 and the hollow section 300 of the second part, may indicate that these two elements are connected together through another object, or they can simply show a location relationship between the specified two elements, without actually connecting between them.

Although a number of design terms are used above, such as "filter plug", "cooling portion", "hollow portion", etc., the use of other terms is not excluded. These terms are used only for a more complete description and explanation of the essence of the present utility model, and their understanding as any additional restrictions contradicts the idea of the present utility model.

The above are only specific embodiments of the present utility model, however, the scope of protection of the present utility model is not limited to this, and any modification or replacement that can easily be determined by those skilled in the art within the technical scope disclosed in this utility model is within within the scope of protection of this utility model.

Industrial applicability

In the non-fired cigarette filter, non-fired tobacco product and the method of use thereof proposed in the present invention, the hollow portion and the cooling portion of the non-fired cigarette filter can collect and cool the smoke before it enters the filter plug, so that the smoke saturation is increased. , the content of harmful gases in the smoke is reduced and the user's smoking experience is improved.

Claims (14)

1. A filter of a cigarette heated without combustion, characterized in that it comprises a first part and a second part that are connected to each other, the first part being a filter plug, the second part comprising at least one hollow portion and at least one cooling portion , each cooling section contains at least one through passage in the form of a cavity, and each hollow section has a middle region in the form of a structure with at least one through cavity, which has a diameter greater than or equal to the diameter of the corresponding through passage in the form of a cavity, and along at least one hollow section and said at least one cooling section are arranged sequentially along the direction of the length of the second part, each cavity of the specified at least one hollow section communicates with the corresponding through passage in the form of a cavity in the specified at least one cooling section, and the specified at least one hollow section or decree This at least one cooling section is adjacent to the filter plug. 2. The filter of a non-combustion heated cigarette according to claim 1, characterized in that it comprises a first part and a second part that are connected to each other, the first part being a filter plug, the second part comprising one hollow portion and one cooling portion, cooling the section contains one through passage in the form of a cavity, and the hollow section has a middle region in the form of a structure with a through cavity, which communicates with the specified through passage in the form of a cavity. 3. The filter of a cigarette heated without combustion according to claim 1, characterized in that there are two hollow sections and one cooling section, said cooling section is located between said two hollow sections, the two ends of each through passage in the form of a cavity on the cooling section are respectively in communication with the cavities adjacent hollow sections at respective ends, and one of the hollow sections is adjacent to the filter plug. 4. The filter of a cigarette heated without combustion according to claim 1, characterized in that there are one hollow section and two cooling sections, said hollow section is located between the said two cooling sections, the two ends of each cavity of the hollow section are respectively communicated with through passages in the form of cavities located adjacent to the cooling section at the respective ends, and one of the cooling sections is adjacent to the filter plug. 5. Filter heated without combustion cigarettes according to any one of paragraphs. 1-4, characterized in that each cooling section comprises a plurality of through passages in the form of cavities parallel to each other and evenly distributed over the cooling section. 6. Filter heated without combustion cigarettes according to any one of paragraphs. 1-5, characterized in that the axis of each cavity of each hollow section is located on one straight line or parallel to the axis of the corresponding through passage in the form of a cavity on the cooling section. 7. Filter heated without combustion cigarettes according to any one of paragraphs. 1-6, characterized in that the filter plug is a cellulose acetate filter plug. 8. Filter heated without combustion cigarettes according to any one of paragraphs. 1-7, characterized in that each cooling section has a length of 5-30 mm. 9. Filter heated without combustion cigarettes according to any one of paragraphs. 1-8, characterized in that each cooling section is made of a high molecular weight polymeric material based on polylactic acid. 10. Filter heated without burning cigarettes according to any one of paragraphs. 1-9, characterized in that each hollow section has a length of 5-30 mm. 11. Filter heated without combustion cigarettes according to any one of paragraphs. 1-10, characterized in that said at least one hollow section and said at least one cooling section are made in the form of a single-part structure of the same material, and the cross-sectional area of the cavities of the hollow section is greater than or equal to the cross-sectional area of the corresponding through passages in the form of cavities. 12. The filter of a cigarette heated without combustion according to claim 11, characterized in that the diameter of each cavity of said at least one hollow section is greater than the diameter of the corresponding through passage in the form of a cavity in the cooling section, and the cross-sectional area of the cavities of the hollow section is equal to the cross-sectional area cross-sections of through passages in the form of cavities in the cooling section. 13. Filter heated without combustion cigarettes according to any one of paragraphs. 1-12, characterized in that each through passage in the form of a cavity has a diameter of 0.2-7 mm. 14. Filter heated without combustion cigarettes according to any one of paragraphs. 1-13, characterized in that each cavity of said at least one hollow section has a diameter of 0.2-7 mm.

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