WO2020155337A1

WO2020155337A1 - Filter tip and tobacco product

Info

Publication number: WO2020155337A1
Application number: PCT/CN2019/078773
Authority: WO
Inventors: 占木金
Original assignee: 福建绿色黄金生物科技有限公司
Priority date: 2019-02-01
Filing date: 2019-03-19
Publication date: 2020-08-06
Also published as: CN109757767A

Abstract

A filter tip (2) and a tobacco product. The filter tip (2) comprises a coating layer (21) and a filtering segment (22); the coating layer (21) has a cylindrical structure; a cavity (211) is formed in the cylindrical structure; the filtering segment (22) is provided in the cavity (211) and abuts against the inner wall of the cavity (211); the filtering segment (22) comprises a corn bract filtering element. The filter tip (2) is provided with the filtering segment (22) taking the corn bract filtering element as the main body; a corn bract is large in specific surface area and contains a large amount of cellulose, and thus can effectively filter and retain tar, nicotine and other harmful substances. In addition, the filtering segment (22) abuts against the inner wall of the cavity (211) to avoid the formation of a gap between the filtering segment (22) and the inner wall of the cavity (211), thereby avoiding unfiltered vapor from entering the oral cavity of a human. Flavonoids in the corn bract have strong radicals and antioxidant effects, so that variation caused by tar compounds can be prevented and cancers can be prevented.

Description

Filter tips and tobacco products

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, application number 201910105267X, and the invention title of "Filter Tips and Tobacco Products" on February 01, 2019, the entire content of which is incorporated into this application by reference.

Technical field

This application belongs to the technical field of tobacco product filtration, and in particular relates to a filter tip and tobacco product.

Background technique

With the increase of people's health awareness, reducing tar and harm of cigarettes has become a research trend and focus in the cigarette industry, as well as a problem in the tobacco industry. The design and production of effective cigarette filters is one of the methods used to reduce tar and harm.

technical problem

The traditional filter only contains the heat insulation section, and the heat insulation section cannot effectively filter the tar and other harmful substances produced by the burning of tobacco, which will cause these harmful substances to still enter the body of the smoker, causing harm to the health of the smoker , And even cause cancer.

Technical solutions

The technical problem to be solved by this application is: in view of the technical defect that the existing filter can not filter the tar generated by the burning of tobacco shreds, thereby causing harm to the health of the smoker, a filter and a smoking product are provided.

In order to solve the above technical problems, an embodiment of the present application provides a filter tip, including a coating layer and a filter section, the coating layer is a cylindrical structure, a cavity is formed in the cylindrical structure, and the filter section is disposed in Inside the cavity and abutting against the inner wall of the cavity, the filter segment includes a corn bract filter element.

Optionally, the corn bract filter element includes a corn bract layer, the corn bract layer is provided with a plurality of corn bracts layer, and the plurality of corn bract layer is stacked and arranged along the radial direction of the cylindrical structure.

Optionally, the corn bract layer includes a body, a convex portion, and a concave portion, the convex portion and the concave portion are both connected to the body, and the convex portion is directed from the body to the barrel. The axis of the shaped structure is bent, and the recessed portion is bent from the body to the coating layer.

Optionally, the corn bract filter element includes a corn bract layer, the corn bract layer is provided with multiple, and the multiple corn bract layers are stacked along the axial direction of the cylindrical structure.

Optionally, the corn bract filter element includes corn bract leaf filaments, a plurality of corn bract leaf filaments are provided, and a plurality of corn bract leaf filaments are stacked and arranged.

Optionally, the filter tip further comprises a heat insulation section arranged in the cavity, and in the axial direction of the cylindrical structure, the heat insulation section and the filter section are arranged in sequence.

Optionally, the cylindrical structure has a smoke-proximal end and a smoke-proximal end that are oppositely disposed, the smoke-proximal end and the proximal-mouth end are both in communication with the cavity, and the heat insulation section is connected to the smoke-proximal end. The distance from the end is smaller than the distance from the filter section to the near smoke end.

Optionally, there are two heat-insulating sections, and the filter section is arranged between the two heat-insulating sections.

Optionally, the covering layer includes a first forming paper layer and a second forming paper layer, the first forming paper layer is detachably connected to the second forming paper layer, and the second forming paper layer covers On the outer periphery of the first shaped paper layer, the hardness of the first shaped paper layer is greater than the hardness of the second shaped paper layer.

Beneficial effect

Implementing the embodiments of this application will have the following beneficial effects:

The filter provided in the embodiments of the present application is provided with a filter segment with a corn bract filter element as the main body. The corn bract has a large specific surface area and contains a large amount of cellulose, so it can effectively filter harmful substances such as tar and nicotine. Withhold. In addition, the filter section abuts against the inner wall of the cavity to avoid the formation of a gap between the filter section and the inner wall of the cavity, thereby preventing smoke from entering the human oral cavity without being filtered.

The flavonoids in corn bracts have strong free radicals and antioxidant effects, which can prevent the mutations caused by tar compounds and prevent cancer, so that the filter can effectively filter and intercept the harmful substances produced by the burning of tobacco. Reduce the harm of tobacco burning to smokers. In addition, flavonoids are high-quality natural antibiotics, which have sterilization and anti-inflammatory effects on the respiratory system and oral tissues. Finally, corn bracts also contain a certain amount of xylitol, dietary fiber and trace elements, which can not only improve the taste of smoking products, but also have a certain health effect. In addition, corn bracts belong to agricultural waste, and the filter is provided with a filter section with corn bracts filter elements as the main body, which is economical and practical.

Another embodiment of the present application further provides a smoking article, including a cigarette body and the above-mentioned filter tip, and the coating layer covers at least part of the cigarette body.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

Figure 1 is a schematic diagram of a tobacco product provided by an embodiment of the present application;

Figure 2 is a cross-sectional view of the smoking product shown in Figure 1;

Fig. 3 is a schematic diagram of the filter tip of the smoking article shown in Fig. 1;

Figure 4 is a cross-sectional view of the filter tip of the smoking article shown in Figure 1;

Figure 5 is a cross-sectional view of a filter provided by another embodiment of the present application.

The reference signs in the specification are as follows:

10. Tobacco products;

1. Cigarette body; 11. Cut tobacco; 12. Cigarette paper;

2. Filter tip; 21, coating layer; 211, cavity; 212, proximal end; 213, proximal end; 214, first formed paper layer; 215, second formed paper layer; 22, filter section; 221, Corn bract layer; 2211, body; 2212, protrusions; 2213, depressions; 222, voids; 23, first sponge; 24, second sponge.

Embodiments of the invention

The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

The embodiment of the present application provides a tobacco product 10, as shown in FIG. 1 and FIG. 2, comprising a cigarette body 1 and a filter 2. The filter 2 and the cigarette body 1 are both cylindrical and coaxially arranged, and the cigarette body 1 includes shredded tobacco 11 The cigarette paper 12 covers the shredded tobacco 11 to form a cylindrical shape. The filter 2 includes a filter section 22 and a coating layer 21. The coating layer 21 can cover at least part of the structure of the cigarette body 1 to connect the cigarette body 1 and Filter 2. Specifically, the coating layer 21 covers the end of the cigarette body 1 close to the filter 2.

The smoking product 10 of the embodiment of the present application may be a traditional cigarette, a cartridge placed in an electronic cigarette set, or other types of smoking products. That is, the filter 2 provided in the embodiment of the present application is not only suitable for traditional smoking products, but also suitable for cigarette cartridges and other types of smoking products 10.

As shown in Figure 1, Figure 2 and Figure 4, the coating layer 21 is connected end to end to form a cylindrical structure. A cavity 211 is formed in the cylindrical structure. The coating layer 21 has a proximal smoke end 212 and a proximal mouth disposed oppositely. At the end 213, the filter section 22 is arranged in the cavity 211 and abuts against the inner wall of the cavity 211, and the filter section 22 includes a corn bract filter element.

The filter 2 is provided with a filter section 22 mainly composed of a corn bract filter element. The corn bract has a large specific surface area and contains a large amount of cellulose, so it can effectively filter and retain harmful substances such as tar and nicotine. In addition, the filter section 22 abuts against the inner wall of the cavity 211 to avoid a gap between the filter section 22 and the inner wall of the cavity 211, thereby preventing smoke from entering the oral cavity of the human body without being filtered.

The flavonoids in corn bracts have strong free radicals and antioxidant effects, which can prevent the mutations caused by tar compounds and prevent cancer, so that the filter 2 can effectively filter and remove harmful substances generated by the burning of tobacco 11 Intercept, reduce the harm of tobacco 11 burning to smokers. In addition, flavonoids are high-quality natural antibiotics, which have sterilization and anti-inflammatory effects on the respiratory system and oral tissues. Finally, corn bracts also contain a certain amount of xylitol, dietary fiber and trace elements, which can not only improve the taste of smoking products, but also have a certain health effect. In addition, corn bracts belong to agricultural waste, and the filter 2 is provided with a filter section 22 mainly composed of corn bracts filter elements, which is economical and practical.

The filter section 22 provided in the filter 2 can not only effectively trap and filter harmful substances, but also improve the taste of smoking products.

In the embodiment shown in FIGS. 1 to 4, the corn bract filter element includes a corn bract layer 221, a plurality of corn bract layers 221 are provided, and the plurality of corn bract layers 221 are along the radial direction of the cylindrical structure. Cascading settings.

In the embodiment shown in FIGS. 1 and 2, a gap 222 is formed between two adjacent corn bract layers 221. In the radial direction of the cylindrical structure, the extension length of the gap 222 accounts for 10%-30% of the extension length of the filter section 22.

In other embodiments, the space 222 can also be filled with corn bract silk.

Preferably, the extension length of the gap 222 accounts for 10% of the extension length of the filter section 22. More preferably, the gap 222 can be omitted.

That is, in the radial direction of the cylindrical structure, the ratio of the extension length of the gap 222 to the extension length of the filter section 22 can also be reduced, so as to increase the specific surface area of the filter section 22 as much as possible and enhance the filtration capacity of the filter section 22.

Due to the presence of vents on the corn bracts, provided that there is no gap 222, the gas generated by the burning of the cut tobacco 11 can also pass through the vents of the corn bracts and enter the mouth of the smoker after being filtered by the corn bracts. In this way, the specific surface area of the filter section 22 can be greatly increased, the retention of tar and nicotine by the corn bracts can be increased, and the content of tar and nicotine that enters the mouth of the smoker can be further reduced to achieve the effect of reducing tar and harm.

In this embodiment, the thickness of the corn bract layer 221 is 0.1 mm-0.3 mm. As shown in FIG. 4, the corn bract layer 221 includes a main body 2211, a convex portion 2212, and a concave portion 2213. The convex portion 2212 and the concave portion 2213 are both connected to the main body 2211. The convex portion 2212 extends from the main body 2211 to the cylindrical structure. The axis is bent, and the recess 2213 is bent from the main body 2211 to the coating layer 21. That is, recesses 2213 and protrusions 2212 are provided on the corn bract layer 221 to increase the area of harmful substances passing through the corn bract layer 221 and further enhance the filtering effect of the filter section 22. At this time, the concave portion 2213 and the convex portion 2212 are different from the inherent unevenness of the surface of the corn bract, and the macroscopic concave portion 2213 and the convex portion 2212 are formed on the corn bract layer 221 through subsequent processing.

In other embodiments not shown in the figures, the corn bract filter element includes a corn bract layer, and multiple corn bract layers are also provided, and the stacking direction of the multiple corn bract layers is consistent with the axial direction of the cylindrical structure. At this time, the cross-sectional size of each corn bract layer matches the cross-sectional size of the cylindrical structure, so that the multiple corn bract layers can be kept in the cavity 211. In the filter section 22 of this embodiment, the smoke entering the cavity 211 is filtered by multiple corn bract layers, which greatly increases the contact area between the smoke and the corn bract layers, thereby increasing the filtering efficiency of the filter 2.

In another embodiment, the corn bract filter element includes corn bract filaments, a plurality of corn bract filaments are provided, and the multiple corn bract filaments are stacked and arranged in the cavity 211. Specifically, the corn bracts are cut into filaments, and then the corn bracts filaments are wound with the coating layer 21 to form the filter 2.

In the embodiment shown in FIG. 3, one end of the filter section 22 extends to the proximal end 212, and the other end of the filter section 22 extends to the proximal end 213.

As shown in Figure 5, the filter tip 2 also includes a first sponge body 23 and a second sponge body 24 to form two heat insulation sections. In the direction from the proximal end 213 to the proximal end 212, the first sponge body The second sponge body 23 and the second sponge body 24 are spaced apart from the filter section 22, and the filter section 22 is located between the first sponge body 23 and the second sponge body 24. The end of the first sponge body 23 facing away from the filter section 22 is flush with the proximal end 213 to close the proximal end 213, and the end of the second sponge body 24 facing away from the filter section 22 is flush with the proximal end 212 to close the proximal end 212. The distance from the first sponge body 23 to the near smoke end 212 is greater than the distance from the filter section 22 to the near smoke end 212, and the distance from the second sponge body 24 to the near smoke end 212 is smaller than the distance from the filter section 22 to the near smoke end 212.

In the direction from the proximal end 212 to the proximal end 213, the extension length of the filter section 22 is greater than the extension length of the first sponge body 23 and greater than the extension length of the second sponge body 24, thereby ensuring that the smoke generated by the burning of the tobacco 11 can be The corn bracts are fully filtered to achieve the purpose of reducing scorch and harm.

However, in other embodiments, the first sponge body 23 or the second sponge body 24 may be omitted. When the first sponge body 23 is omitted, the end of the filter section 22 facing away from the second sponge body 24 is flush with the proximal end 213. The proximal end 213 is closed, and when the second sponge body 24 is omitted, the end of the filter section 22 facing away from the first sponge body 23 is flush with the proximal end 212 to close the proximal end 212.

In other embodiments, in the direction from the proximal mouth end 213 to the proximal cigarette end 212, the filter 2 can also be spaced apart from the cigarette body 1, that is, a support section is provided between the filter 2 and the cigarette body 1.

In other embodiments, the thickness of the corn bract layer 221 may also be other sizes. Corn bracts can be used after simple washing, sterilization and drying. The maize bract layer 221 can also omit the body 2211, so that the maize bract layer 221 has a wavy shape. The shapes of the concave portion 2213 and the convex portion 2212 are not specifically limited herein, and may be triangular, circular or elliptical.

As shown in FIG. 2, the covering layer 21 includes a first forming paper layer 214 and a second forming paper layer 215. The first forming paper layer 214 and the second forming paper layer 215 are detachably connected, and the second forming paper layer 215 covers On the first forming paper layer 214, the hardness of the first forming paper layer 214 is greater than the hardness of the second forming paper layer 215, and the first forming paper layer 214 is connected end to end to form a cavity 211. In this way, the first shaped paper layer 214 can be formed into a relatively stable cylindrical shape, so that the filter section 22 can be confined in the cavity 211.

Specifically, the first formed paper layer 214 is whiteboard paper or kraft paper, and the second formed paper layer 215 is tipping paper. The tipping paper has certain water resistance and wet strength, and can prevent the lips from getting wet with the smoking article 10 when smoking. This article does not limit the raw materials of white paper, kraft paper and tipping paper, which can be straw, bagasse, hardwood, coniferous wood, etc.

In other embodiments, the first molded paper layer 214 may be other types such as white cardboard or cardboard paper, and the first molded paper layer 214 may also be omitted.

The above-disclosed are only the preferred embodiments of the application, which of course cannot be used to limit the scope of rights of the application. Therefore, equivalent changes made according to the claims of the application still fall within the scope of the application.

Claims

A filter tip, which is characterized by comprising a coating layer and a filter section, the coating layer is a cylindrical structure, a cavity is formed in the cylindrical structure, and the filter section is disposed in the cavity and is in contact with The inner wall of the cavity abuts, and the filter segment includes a corn bract filter element.
The filter according to claim 1, wherein the corn bract filter element comprises a corn bract layer, the corn bract layer is provided with a plurality of corn bracts, and the plurality of corn bracts are arranged along the tube The structure is arranged in a radial stack.
The filter according to claim 2, wherein the corn bract layer comprises a body, a convex part and a concave part, the convex part and the concave part are both connected with the body, and the convex The part is bent from the main body to the axis of the cylindrical structure, and the concave part is bent from the main body to the coating layer.
The filter according to claim 1, wherein the corn bract filter element comprises a corn bract layer, the corn bract layer is provided with a plurality of corn bracts, and the plurality of corn bracts are arranged along the tube The structure is stacked in the axial direction.
The filter according to claim 1, wherein the corn bract filter element comprises a corn bract leaf filament, the corn bract leaf filament is provided with a plurality of corn bract leaf filaments, and a plurality of the corn bract leaf filaments are stacked.
The filter tip according to claim 1, wherein the filter tip further comprises a heat insulation section arranged in the cavity, and in the axial direction of the cylindrical structure, the heat insulation section and the filter The segments are arranged in sequence.
The filter tip according to claim 6, wherein the cylindrical structure has a proximal smoke end and a proximal mouth end disposed oppositely, and both the proximal smoke end and the proximal mouth end communicate with the cavity, so The distance from the heat insulation section to the near smoke end is smaller than the distance from the filter section to the near smoke end.
The filter tip according to claim 6, wherein there are two heat insulation sections, and the filter section is arranged between the two heat insulation sections.
The filter tip according to claim 1, wherein the covering layer comprises a first shaped paper layer and a second shaped paper layer, the first shaped paper layer and the second shaped paper layer are detachably connected, The second shaped paper layer is wrapped around the outer periphery of the first shaped paper layer, and the hardness of the first shaped paper layer is greater than the hardness of the second shaped paper layer.
A smoking product, characterized by comprising a cigarette body and the filter tip according to any one of claims 1-9, and the coating layer covers at least part of the cigarette body.