CN113142645A

CN113142645A - Filter element and smoking article

Info

Publication number: CN113142645A
Application number: CN202110580080.2A
Authority: CN
Inventors: 张银强
Original assignee: Anhui Mingchao Herbal Biotechnology Co ltd
Current assignee: Anhui Mingchao Herbal Biotechnology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2021-07-23

Abstract

The invention discloses a filter element and a smoking article, and relates to the technical field of herbaceous plant articles. The filter element of the invention comprises a sleeve and a filter body; at least one part of the filtering main body is arranged in the sleeve, and the filtering main body and the sleeve are coaxially arranged; the sleeve is made of paper; one end of the filter element is a plug end which is used for plugging and containing the smoke body, and the other end axially opposite to the plug end is a suction end which is used for sucking the smoke body. The filter element has the advantages of good filtering effect, convenient use, environmental protection, low cost, high economic value and large-scale production and popularization.

Description

Filter element and smoking article

Technical Field

The invention relates to the technical field of herbaceous plant products, in particular to a filter element and a smoking product.

Background

A Filter cigarette holder (also known as a healthy cigarette holder) is capable of filtering most harmful substances in smoking articles (tobacco or non-tobacco), protecting the human health, improving the quality of the cigarette, and reducing the tar content of the tobacco or other harmful substances in the non-tobacco.

The external filter tip is independently connected with the external filter tip on the basis of the existing smoking product (tobacco/non-tobacco), so that the filtering effect is increased, harmful substances are reduced, and the external filter tip is convenient to carry and flexible to use; the external filter tip comprises a disposable filter tip, a cleaning filter tip and a core-changing filter tip; the disposable filter tip is usually made of plastic/silica gel shell to wrap the adsorption material, has the advantages of filtering tar and particulate matters and throwing the filter tip after use, and has the disadvantages that plastic/silica gel materials generate plastic/silica gel peculiar smell when being heated, thereby being harmful to human bodies and polluting the environment; after a plurality of conventional cigarettes are used in the cleaning type filter tip, the filter bin can be detached to clean internal components, the advantages are that tar is obviously filtered and can be used repeatedly, and the disadvantages are that frequent cleaning is needed, the structure of the filter tip is relatively complex, and the cost is high; the filter tip with the replaceable filter core is characterized in that the filter core is placed in the filter bin, a plurality of conventional cigarettes can be used according to different specifications of the filter core, the filter tip with the replaceable filter core has the advantages of convenience in replacement and no need of cleaning, and the filter tip with the replaceable filter core has the defects that substances such as tar and the like filtered in the filter core can remain in the filter bin after long-term use, the substances need to be regularly detected inside the filter bin, and the filter tip is relatively complex in structure.

Therefore, it is necessary to solve the problems of the external filter element material that the material is easily decomposed by heat to generate harmful substances, the structure is complex, and the use is complicated.

Disclosure of Invention

In view of this, the embodiments of the present invention provide a filter element and a smoking article, and mainly aim to solve the technical problems that the filter element has a complex structure, is easily decomposed by heat to generate harmful substances, and is inconvenient to use.

In order to achieve the purpose, the invention mainly provides the following technical scheme:

in one aspect, embodiments of the present invention provide a filter element, which includes a sleeve and a filter body; at least one part of the filtering main body is arranged in the sleeve, and the filtering main body and the sleeve are coaxially arranged; the sleeve is made of paper; one end of the filter element is a plug end which is used for plugging and containing the smoke body, and the other end axially opposite to the plug end is a suction end which is used for sucking the smoke body.

The sleeve of the invention is used as the shell of the filter element, and the internal structure at least needs to meet the following requirements: the filter body being axially positionable, the suction end being capable of normal suction action, smoke generated upon heating of the body being capable of passing from the suction end by suction, and the plug end being capable of insertion therein by the body; the diameter of the filtering main body is slightly smaller than that of the sleeve, and a part of the filtering main body can be inserted into the sleeve or the whole filtering main body can be inserted into the sleeve; that is, the end face of one end of the filter body may axially coincide with the end face of one end of the sleeve, or may be higher or lower than the end face of one end of the sleeve.

Preferably, all portions of the filter body are provided in the sleeve.

Preferably, the filter body is in close contact with the sleeve.

The filtering main body and the sleeve are tightly attached through bonding and fixing by water-based glue, hot melt glue and the like, and can also be fixed through other modes.

Preferably, an outer wall surface of the filter body is bonded and fixed to an inner wall surface of the sleeve.

Preferably, the axial length of the sleeve is greater than the axial length of the filter body, and the sleeve forms an insertion cavity in a part of the barrel body axially longer than the filter body, and the insertion cavity is used for accommodating an inserted smoke generating body.

The plug-in cavity of the sleeve is preferably an open plug-in cavity so as to be beneficial to plug in the smoke generating body; it is also possible to use a film/tissue closure which is hygienic and moisture resistant, but the material of the film/tissue needs to be environmentally friendly and can be easily inserted by the body of the smoker.

Preferably, the filter material of the filter body includes at least one of plant fiber (e.g., paper), cellulose acetate, polylactic acid, and polypropylene.

The plant fibers and the non-plant fibers in the invention are preferably fiber materials suitable for cigarettes, namely fibers suitable for filter rods, and are mainly used for filtering harmful substances in smoke, and the plant fibers and/or the non-plant fibers can be used in a composite way; the filtering material can be added with active carbon or sepiolite to improve filtering effect.

Preferably, the sleeve is a cylinder with two open ends and a hollow interior. The advantages are simple structure, easy production and assembly, and convenient use.

Preferably, the grammage of the paper material of the sleeve is 10-220g/m³Preferably 15 to 210g/m³Further preferably 20 to 200g/m³Further preferably 30 to 200g/m³Further preferably 30 to 180g/m³Further preferably 50 to 180g/m³Further preferably 60 to 180g/m³Further preferably 70 to 180g/m³Further preferably 80 to 180g/m³Further preferably 90 to 180g/m³Further preferably 100-³Further preferably 120-180g/m³Further preferably 130-180g/m³Further preferably 140-180g/m³Further preferably 130-170g/m³Further preferably 140-160g/m³Most preferably 150g/m³。

Preferably, an insertion cylinder is arranged in the insertion cavity of the sleeve, the insertion cylinder is a cylinder with two open ends and hollow inside, and the insertion cylinder and the filter main body are coaxially arranged.

Preferably, an outer wall surface of the insertion tube is bonded and fixed to an inner wall surface of the insertion cavity.

The gram weight of the paper material of the plug-in cylinder is 40-330g/m³Preferably 60 to 300g/m³Further preferably 80 to 300g/m³Further preferably 90 to 300g/m³Further preferably 100-300g/m³Further preferably 110-300g/m³Further preferably 120-300g/m³Further preferably 130-300g/m³Further preferably 140-300g/m³Further preferably 150-300g/m³Further preferably 150-280g/m³Further preferably 150-250g/m³Further preferably 150-230g/m³Further preferably 150-220g/m³Further preferably 160-280g/m³More preferably 170-280g/m³Further preferably 180-280g/m³Further preferably 180-260g/m³Further preferably 180-³Further preferably 180-³Further preferably 180-³Further, it is preferable180-220g/m³Further preferably 180-210g/m³Further preferably 180-³。

When the grammage of the paper material of the sleeve is less than 20g/m³When in use, the smoke generating body needs to be carefully and slowly inserted into the insertion cavity of the sleeve to avoid the deformation of the sleeve, and the use is not influenced when the sleeve is deformed as long as the smoke generating body can be inserted into the sleeve.

When the grammage of the paper material of the sleeve is more than 200g/m³When in use, the cigarette body can be conveniently inserted into the cigarette body in a labor-saving way and the function of the cigarette body can be exerted; however, the manufacturing process and cost of the sleeve are high, the sleeve is not easy to assemble, and mass production and economic benefit are not facilitated.

When the sleeve is made of hard paper (preferably with a gram weight of 60-200 g/m)³) The plug-in tube is not needed to be installed, the rigidity of the plug-in tube is enough to bear the extrusion force of the smoke body to the tube wall when the smoke body is inserted into the sleeve, the plug-in tube is not deformed, and the assembly is convenient.

When the material of the sleeve is a thin paper (preferably with a gram weight of 20-60 g/m)³) The paper sleeve can be used for splicing a smoke body without damaging the sleeve, but the operation is not as convenient, labor-saving and time-saving as compared with a hard paper sleeve, and the optimal scheme is to install paper materials (with the gram weight of 60-300 g/m) meeting the use requirements at the splicing cavity of the sleeve³) The insertion tube of (1).

Whether the filter element of the invention needs to be provided with the plug-in cylinder or not can be comprehensively considered according to the aspects of sleeve materials, the difficulty of plugging the smoke body, the flexibility of operation, the cost, the mass production and the like. The paper material of the sleeve and the plug-in cartridge of the present invention is conventional in the field of smoking, and the paper thickness is selected from a range of thicknesses available or commonly used in the field.

The length of the plug-in cylinder can be smaller than or larger than that of the plug-in cavity, and the diameter of the plug-in cylinder is slightly smaller than that of the sleeve; the wall of the plug-in cylinder can be provided with a plurality of through holes for air intake, and the air is used for diluting harmful components in the smoke, so that the smoke concentration is reduced, and the health of a smoker is facilitated.

Preferably, an aroma-enhancing capsule is arranged inside the filtering main body, the shell of the aroma-enhancing capsule is made of a brittle material, and the aroma-enhancing capsule is internally provided with spice or essence; the flavor or fragrance can adsorb, neutralize or reduce harmful substances in the smoke.

The flavouring capsule (or aroma capsule) of the present invention is referred to in the art as an exploded bead, and contains a flavouring substance inside, and the casing is a brittle material, and the capsule is broken by pressing with a hand, and the flavouring substance inside the capsule releases the flavour after the capsule is broken.

Preferably, tea polyphenol or vitamin C is added into the flavoring capsule.

The aroma-enhancing capsule is added with spice or essence, and is innovatively added with tea polyphenol or vitamin C, the technical scheme is provided for the first time in the technical field, and the tea polyphenol or vitamin C added into the aroma-enhancing capsule can adsorb harmful substances, is beneficial to human health and improves the comprehensive quality of smoking. Wherein, the tea polyphenol has catechin as the main component, which has strong antioxidant activity and strong adsorption, and can generate a compound with some harmful substances in the smoke, thereby achieving the functions of adsorbing the harmful substances, reducing the smoking harm and improving the smoking quality of the cigarette, but the reaction activity of the polyphenol structure is large, the reaction activity is easy to be influenced by factors such as environmental temperature, light and the like to reduce the antioxidant activity, and the tea polyphenol or vitamin C is directly added into the filter main body and is easy to be oxidized to weaken the antioxidant and adsorption characteristics; in order to solve the technical problems, the inventor adds tea polyphenol or vitamin C materials into a closed capsule, so that the phenomenon of oxidation of the tea polyphenol or the vitamin C can be avoided or reduced; experimental research shows that after tea polyphenol or vitamin C is added into the aroma-enhancing capsule, irritation and miscellaneous gas in smoke can be obviously reduced, the overall quality of smoking taste is improved, and the innovative technology is beneficial to human health and environmental safety.

Preferably, the flavor or essence comprises at least one of strawberry extract, banana extract, watermelon extract, juicy peach extract, blueberry extract, pineapple extract, mango extract, clove extract, agilawood extract, cantaloupe extract, apple extract, citrus extract, coffee extract, glyceryl caprylate, menthol, peppermint oil, mint extract, vegetable gum and animal gum. Preferably, the extract is compounded with vegetable gum (or animal gum) to be used as a spice or essence.

Preferably, the inside of the filtering main body is provided with activated carbon for improving the filtering effect.

In another aspect, embodiments of the present invention provide a smoking article comprising a body and an circumscribing filter as described above, the circumscribing filter being adapted to be inserted into the body for smoking and filtering smoke generated by the body.

Preferably, the smoking material of the body comprises tobacco or non-tobacco; the non-tobacco comprises tea leaves; the tea comprises green tea, black tea, white tea, black tea, yellow tea, scented tea, oolong tea, fruit tea or herb tea.

The invention provides a use method of a filter element, which comprises the following steps: inserting the insertion end sleeve of the filter element onto the smoke body, sucking at the suction end of the filter element, and discarding after the suction is finished, wherein the filter element is theoretically a disposable article; the smoke body is an independent product which can be provided with a filter tip or not (a pure smoking section without a filter tip), and the filtering effect of the smoke body inserted with the filtering element is more remarkable than that of the smoke body not inserted with the filtering element.

In the prior art in the field, traditional smoking articles (traditional cigarettes without flavoring capsules) are included, the equipment and the production process thereof are already available and have high cost, but with the experience requirements of consumers, the traditional cigarettes cannot meet the smoking requirements of consumers, for example, smoking articles with flavoring capsules, which are common in the market and advanced and popular with consumers, need professional equipment and processes to manufacture an integral smoking article with flavoring function, while for traditional smoking articles, such as traditional cigarettes, in order to meet the market and the requirements of consumers, flavoring capsules may need to be added on the traditional cigarettes, in order to achieve the above purpose, many production factories must introduce appropriate equipment, processes, technical personnel and the like, and the manufacturing cost is high, so that the market benefit is not facilitated; in order to solve the problems, the inventor develops the external filter element, and the processing equipment and the process are relatively simple and the cost is low; when the cigarette is inserted into any diameter-matched smoking body, the cigarette can be used, the operation is convenient and flexible, and the requirement of a consumer on a novel smoking article can be met without new or expensive equipment and process technology; even when new smoking articles appear later, the innovative technology of the separated external filter element is adopted, and the effect of new technology and new experience can be achieved simply, conveniently and flexibly as long as a novel element is added into the filter element.

Compared with the prior art, the invention has the beneficial effects that:

aiming at the technical problems that the existing filter element is complex in structure, harmful substances are easily generated when materials are heated, the health is damaged, the environment is polluted, the cost is high, the filter effect is to be improved, and the like, the technical means that paper is used as a shell material of the filter element, acetate fiber/polylactic acid/polypropylene/plant fiber and the like are used as filter main body materials, and the filter main body is placed in an external material is adopted, so that the technical effects that the structure of the filter element is simplified, the filter effect is improved, the harmful substances generated by the thermal decomposition of the shell material are reduced, the harm to human bodies is reduced, the production cost is reduced, the use is flexible and convenient, the existing product structure can be upgraded and updated at a low cost, more suction experiences of consumers can be met, and the like are achieved.

Drawings

FIGS. 1A-1C are schematic structural views of a filter element provided in accordance with an embodiment of the present invention;

(FIG. 1A shows a non-flavored capsule and a cartridge in a filter element, FIG. 1B shows a non-cartridge containing a flavored capsule in a filter element, and FIG. 1C shows a non-cartridge containing a flavored capsule in a filter element)

FIGS. 2A-2C are schematic longitudinal cross-sectional views of the filter element of FIGS. 1A-1C provided in accordance with embodiments of the present invention;

FIGS. 3A-3D are schematic structural views of different relative positions of the sleeve, the filter body and the plug-in cartridge according to the embodiment of the invention;

fig. 4A-4B are schematic structural views of a plug-in cartridge according to an embodiment of the present invention.

(FIG. 4A the wall of the socket cartridge has no through-hole, and FIG. 4B the wall of the socket cartridge has a through-hole)

Fig. 5A-5B are schematic structural views of smoking articles provided by embodiments of the present invention.

(FIG. 5A is the smoking article of FIG. 1B with the filter element inserted into the body, and FIG. 5B is the smoking article of FIG. 1C with the filter element inserted into the body)

Reference numerals:

1-a filter element;

11-a filtering body, 12-a sleeve, 13-a plug-in cylinder, 14-a flavor enhancing capsule, 15-activated carbon, 16-a suction end and 17-a plug-in end;

2-a smoke generating body;

3-smoking articles.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, technical solutions, features and effects according to the present invention will be given with preferred embodiments. The particular features, structures, or characteristics may be combined in any suitable manner in the embodiments or embodiments described below.

The dimensions of the sleeve, the filter main body, the plug-in cylinder and the smoke generating body designed in the following embodiment of the invention are only taken as examples of conventional dimensions in the field, the design needs to meet the requirement of mutual matching, and the specific dimensions of each element can be designed according to actual requirements; the dimensions of the following filter elements of the present invention include mainly two common solutions:

1. the sleeve is 20mm long and 8.6mm in diameter; the length of the filtering body is 12mm, and the diameter is 8.4-8.5 mm; the length of the splicing cylinder is 8mm, and the diameter is 8.4-8.5 mm; the diameter of the fuming body is 7.8mm, and the size is suitable for thick cigarettes.

2. The sleeve is 30mm long and 6.2mm in diameter; the length of the filtering body is 15mm, and the diameter is 6.0-6.1 mm; the length of the splicing cylinder is 15mm, and the diameter is 6.0-6.1 mm; the diameter of the smoke body is 5.4mm, and the size is suitable for thin cigarettes.

The following examples are only illustrative of experiments on structural design; the filter elements of examples 1-13 contained no cartridge, and the filter elements of examples 14-25 contained a cartridge.

Example 1 (non-flavouring capsules)

A filter element, as shown in fig. 1A, comprising a sleeve 12 and a filter body 11; the material of the sleeve 12 is a hard paper (having a grammage of 150 g/m)³) The sleeve 12 is a cylinder with two open ends and hollow inside; the filter body 11 is a cylinder made of cellulose acetate tow (wrapped by white paper in the circumferential direction), the filter body 11 is coaxially and completely arranged in the sleeve 12, and the outer wall surface of the filter body 11 is bonded and fixed to the inner wall surface of the sleeve 12; the axial length of the sleeve 12 is greater than the axial length of the filter body 11, the end faces of the two suction ends 16 are axially coincident (aligned), the sleeve 12 forms a plug-in cavity in a part of the cylindrical body axially longer than the filter body 11, the plug-in cavity is used for accommodating the inserted smoke body 2, the plug-in cavity is a plug-in end 17 of the filter element 1, the other end axially opposite to the plug-in end 17 is a suction end 16 of the filter element 1, and the suction end 16 is used for sucking the smoke body 2.

Example 2 (aroma adding capsule)

The difference between the embodiment 2 and the embodiment 1 is that the filter body 11 is a cylinder made of strand-shaped polylactic acid (or a cylinder made of sheet-shaped polylactic acid); the inside of the filter body 11 is provided with a flavor-enhancing capsule 14, the casing material of the flavor-enhancing capsule 14 is a brittle material (which can be broken by hand), the flavor-enhancing capsule 14 contains a flavor or an essence, and the structure is shown in fig. 1B (containing the flavor-enhancing capsule).

In example 2, the flavor or essence is at least one of a strawberry extract, a banana extract, a watermelon extract, a juicy peach extract, a blueberry extract, a pineapple extract, a mango extract, a clove extract, an agilawood extract, a cantaloupe extract, an apple extract, a citrus extract, coffee and menthol, and the specific flavor type can be selected according to actual needs.

Example 3

The difference between the embodiment 3 and the embodiment 2 is that the aroma-enhancing capsule is added with tea polyphenol (1% by mass) in addition to essence or spice.

Example 4

The difference between the embodiment 4 and the embodiment 2 is that the flavoring capsule is added with essence or spice and also added with vitamin C (the mass percentage content is 1%).

In the above embodiments 3 to 4 of the present invention, the percentage content of tea polyphenol or vitamin C is 0.1 to 1%, and it can be added according to actual needs (considering taste and cost).

Example 5

The difference between this embodiment 5 and embodiment 2 is that activated carbon particles 15 (the particle size can be added according to actual conditions, the particle size cannot be too fine, and the particles are easy to be inhaled into human bodies) are added into the filter body 11.

Example 6

The difference between the present embodiment 6 and embodiment 2 is that the grammage of the cardboard used as the material of the sleeve 12 is 15g/m³。

Example 7

Example 7 is different from example 2 in that the grammage of the cardboard used as the material of the sleeve 12 is 20g/m³。

Example 8

The difference between the present embodiment 8 and embodiment 2 is that the grammage of the cardboard used as the material of the sleeve 12 is 60g/m³。

Example 9

The difference between this example 9 and example 2 is that the grammage of the cardboard used as the material of the sleeve 12 is 100g/m³。

Example 10

The present example 10 is different from the example 2 in that the grammage of the hard paper of the material of the sleeve 12 is 130g/m³。

Example 11

The present example 11 is different from example 2 in that the grammage of the cardboard used as the material of the sleeve 12 is 180g/m³。

Example 12

The present embodiment 12 differs from embodiment 1 in the material of the sleeve 12The gram weight of the hard paper of the material is 200g/m³。

Example 13

The difference between this embodiment 13 and embodiment 2 is that the grammage of the cardboard used as the material of the sleeve 12 is 230g/m³。

EXAMPLE 14 (with a Cartridge)

The present embodiment 14 is different from embodiment 2 in that the material of the sleeve 12 is a thin paper (having a grammage of 30 g/m)³) The inserting cavity is internally provided with an inserting cylinder 13, the inserting cylinder 13 is a cylinder body with two open ends and hollow inside, and the inserting cylinder 13 is made of hard paper (the gram weight is 200 g/m)³) The cartridge 13 is coaxially disposed with the filter body 11, and the two are closely adjacent to each other; the outer wall surface of the insertion cylinder 13 is fixedly bonded with the inner wall surface of the insertion cavity; the plug-in cartridge 13 is used to insert the smoker body 2, as shown in figures 1C and 2C.

Example 15

Example 15 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 40g/m³。

Example 16

Example 16 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 60g/m³。

Example 17

Example 17 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 100g/m³。

Example 18

Example 18 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 150g/m³。

Example 19

Example 19 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 180g/m³。

Example 20

The difference between this embodiment 20 and embodiment 14 is that the grammage of the cardboard of the insertion tube 13 is 210g/m³。

Example 21

Example 21 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 250g/m³。

Example 22

Example 22 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 280g/m³。

Example 23

Example 23 is different from example 14 in that the grammage of the cardboard of the insertion tube 13 is 300g/m³。

Example 24

The difference between this embodiment 24 and embodiment 14 is that the grammage of the cardboard of the insertion tube 13 is 320g/m³。

Example 25

The present embodiment 25 is different from the embodiment 14 in that the relative position structures of the filter cylinder 11, the sleeve 12 and the plug-in cylinder 13 along the axial direction can be shown in fig. 3A, 3B, 3C or 3D; the filter effect is basically similar, the operation is convenient, and the relative position design of the three components can be selected and used according to the actual requirement.

In the above embodiment 14-embodiment 25, the structure of the inserting tube 13 is as shown in fig. 4A or fig. 4B, and the wall of the inserting tube in the structure of fig. 4B is provided with a plurality of through holes for air intake, smoke dilution and smoke harm reduction, and the structure can be selected according to actual needs.

In the following embodiments, the filter element 1 described in the above embodiments 1 to 25 is used in combination with the separate smoke generating body 2, and the separate smoke generating body 2 is inserted into the filter element 1 and connected to be used as a whole; the inner diameter of the filter element needs to be slightly larger than the outer diameter of the smoke body so as to be capable of being inserted without damaging materials, the diameters of the filter element and the smoke body need to be matched for use, and the lengths of the filter element and the smoke body can be designed according to actual requirements.

Example 26

A smoking article 3, as shown in fig. 5A, comprising a smoking body 2 (a normal cigarette with a filter and without flavor capsule, the material is tobacco) and any one of the filter elements 1 in examples 1 to 13 (referred to as circumscribed filter in the art), wherein the plugging end of the filter element 1 is plugged into the smoking body 2 (the smoking body is plugged into the plugging cavity of the filter element 1, no plugging cylinder is provided, the diameters of the two are matched), and 13 different smoking articles (marked with sample No. 1 and sample No. 13 in sequence) are formed; the filter element 1 is adapted to re-filter the smoke generated by the body 2.

Example 27

This example 27 differs from example 26 in that a smoking article 3, as shown in fig. 5B, is the filter element 1 of any one of examples 14 to 25, and 11 different smoking articles are formed by inserting the insertion end (with the insertion cylinder in the insertion cavity) of the filter element 1 outside the smoke body 2 (with the smoke body inserted into the insertion cylinder of the filter element 1) and smoking; the filter element 1 is adapted to re-filter the smoke generated by the body 2.

Example 28

This example 28 is different from example 14 in that the material of the smoke generating body is tea leaves (referred to as tea smoke in the art).

The tea leaves in embodiment 28 of the present invention may be selected from green tea, black tea, white tea, dark tea, yellow tea, scented tea, oolong tea, fruit tea, and herbal tea.

Comparative example

This comparative example contained only a smoke body (identical to the smoke body of example 26, i.e., a comparative sample) and no filter element 1.

The smoke bodies of the comparative examples (three samples taken) were draw compared with 13 different smoking articles assembled according to example 26.

100 tobacco enthusiasts in the field were invited to perform sensory evaluation of the smoke of the above comparative example and 13 smoking articles of example 26 using the techniques of the art to determine the amount of harmful substances in the smoke before and after filtration, and the results of the experiment are shown in Table 1.

TABLE 1. example 26 (with external filter) and comparative example (without external filter) sensory quality assessment questionnaire

Note: a larger number indicates a better quality.

As can be seen from Table 1, the 13 samples of inventive examples 1-13 exhibited better overall performance than the 3 comparative samples of the comparative example.

Through the comparison of the sample 1 and the comparative samples 1-3, the sample 1 does not have the flavor-enhancing capsule, but the comprehensive quality of the smoke is improved and the filtering effect is obviously improved due to the external filter tip.

Through the comparison between the sample 2 and the comparative samples 1-3, the sample 2 of the invention is externally connected with the flavor-enhancing capsule with the filter tip, so that the comprehensive quality of the smoke such as aroma is obviously improved, and the filtering effect is obviously improved.

Through the comparison of the sample 3 with the sample 4 and the comparison samples 1-3, the sample 3 and the sample 4 are externally connected with the flavor-enhancing capsule with the filter tip, and the capsule contains tea polyphenol or vitamin C, so that the comprehensive quality such as aroma in smoke is obviously improved, and the filtering effect is obviously improved.

By comparing the example 5 with the comparative samples 1 to 3, the external filter of the sample 5 of the invention contains the flavor-enhancing capsule, and the filter body is internally provided with the activated carbon, thereby obviously improving the filtering effect.

By comparison of examples 1-5, the overall quality of sample 1 < sample 2< sample/3 sample 4/sample 5; the sample 3 (the aroma-enhancing capsule contains tea polyphenol) and the sample 4 (the aroma-enhancing capsule contains vitamin C) are more prominent in comprehensive smoke quality such as aroma, aftertaste, miscellaneous gas, irritation and the like, and the filtering effect of the sample 5 is more prominent.

The samples of examples 6-13 only changed the grammage of the sleeve paper material, with no significant effect on the overall quality of the filter element. However, when the sleeve is produced and assembled, the gram weights of materials are different, the cost is different, and the assembly difficulty and the assembly ease are different; when the gram weight of the paper material of the sleeve is 15g/m³、20g/m³Or 60g/m³The material is thin and insertion into the body requires slow care to avoidThe sleeve wall is damaged or deformed, the sleeve can be successfully inserted in the assembling process, but the inserting is more laborious, and the thicker the sleeve material is, the easier the sleeve is inserted into the smoke generating body; when the gram weight of the paper material of the sleeve is 60g/m³-200g/m³The thicker the material is, the easier the plug-in assembly is, when exceeding 200g/m³The manufactured sleeve is not easy to be rolled, and the cost is high; therefore, considering the factors of the difficulty of inserting the smoke body, the material cost, the difficulty of preparing the sleeve and the like, the gram weight of the paper material for preparing the sleeve is selected to be 20-200g/m³The function of the composition can be realized, and the composition is further preferably 30 to 200g/m³Further preferably 40 to 200g/m³Further preferably 50 to 200g/m³Further preferably 60 to 200g/m³Further preferably 70 to 200g/m³Further preferably 80 to 200g/m³Further preferably 90 to 200g/m³Further preferably 100-³Further preferably 110-³Further preferably 120-200g/m³Further preferably 130-³Further preferably 140-200g/m³Further preferably 150-200g/m³Further preferably 160-200g/m³More preferably 170-200g/m³Further preferably 180-³Further preferably 190-³Further preferably 80 to 180g/m³Further preferably 80 to 160g/m³Further preferably 90 to 180g/m³Further preferably 100-³Further preferably 120-170g/m³Further preferably 130-160g/m³Further preferably 140-160g/m³Most preferably 150g/m³。

The paper grammage of the samples of example 14-example 24 in the sleeve was 30g/m³The paper gram weight of the inserting cylinder is 40-320g/m³The gram weight of the plug-in connection drum is preferably 60-300g/m in consideration of the winding difficulty, cost and plug-in connection performance of the plug-in connection drum³Further preferably 80 to 300g/m³Further preferably 90 to 300g/m³Further preferably 100-300g/m³Further preferably 110-300g/m³Further preferably 120-300g/m³Further preferably 130-300g/m³Further preferably 140-300g/m³Further preferably 150-300g/m³Further preferably 160-300g/m³More preferably 170-300g/m³Further preferably 180-300g/m³Further preferably 190-300g/m³Further preferably 200-300g/m³Further preferably 150-280g/m³Further preferably 180-260g/m³Further preferably 190-³Further preferably 190-³Further preferably 200-220g/m³Further preferably 250-290g/m³Further preferably 250-280g/m³Further preferably 250-270g/m³Further preferably 250-260g/m³Further preferably 200-³Further preferably 200-³Further preferably 210-270g/m³Further preferably 220-260g/m³Further preferably 230-260g/m³Further preferably 240-260g/m³Most preferably 200g/m³。

The filter element mainly comprises a paper shell, a sleeve and a filter main body, does not generate harmful substances after being heated, is environment-friendly, has lower production cost, is convenient to use (directly sleeved and inserted for use), has obviously improved filter effect compared with a smoking product without an external filter tip, has higher economic benefit and better market prospect, and can be produced in mass and popularized for use.

The filter elements of the present invention are not limited to use with cigarettes, and may be used with other smoking articles.

The materials used in the above-described smoking articles of embodiments of the present invention are all prior art.

The embodiments of the present invention are not exhaustive, and those skilled in the art can select them from the prior art.

The above disclosure is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and shall be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the above claims.

Claims

1. A filter element, characterized in that it comprises a sleeve and a filter body; at least one part of the filtering main body is arranged in the sleeve, and the filtering main body and the sleeve are coaxially arranged; the sleeve is made of paper; one end of the filter element is a plug end which is used for plugging and containing the smoke body, and the other end axially opposite to the plug end is a suction end which is used for sucking the smoke body.

2. A filter element as claimed in claim 1, wherein all of the filter body is located within the sleeve. Preferably, the filter body is in close contact with the sleeve. Preferably, the axial length of the sleeve is greater than that of the filter body, and the sleeve forms an insertion cavity in a part of the barrel body axially longer than the filter body, and the insertion cavity is used for accommodating an inserted smoke body.

3. The filter element of claim 1, wherein the filter material of the filter body comprises at least one of vegetable fibers, cellulose acetate, polylactic acid, and polypropylene.

4. A filter element as claimed in claim 1, wherein the sleeve is a cylindrical body open at both ends and hollow inside. Preferably, an outer wall surface of the filter body is bonded and fixed to an inner wall surface of the sleeve. The paper material of the sleeve has a gram weight of 20-200g/m³. Further preferably 60 to 180g/m³. Further preferably 80 to 170g/m³. Further preferably 120-160g/m³. Further preferably 140-160g/m³。

5. The filter element according to claim 1, wherein a plug-in cartridge is provided in the sleeve, the plug-in cartridge is a hollow cylinder with two open ends, and the plug-in cartridge and the filter body are connected togetherAre arranged coaxially. Preferably, an outer wall surface of the insertion tube is bonded and fixed to an inner wall surface of the sleeve. Preferably, the gram weight of the paper material of the plug-in cylinder is 60-300g/m³. Further preferably 100-³. Further preferably 150-250g/m³. Further preferably 180-³. Further preferably 200-³. Further preferably 200-220g/m³。

6. A filter element as claimed in claim 1, wherein the inside of the filtering body is provided with flavouring capsules in which a flavour or fragrance is provided.

7. A filter element according to claim 6, wherein said flavored capsule is supplemented with tea polyphenols or vitamin C.

8. The filter element of claim 6, wherein the flavor or fragrance comprises at least one of strawberry extract, banana extract, watermelon extract, juicy peach extract, blueberry extract, pineapple extract, mango extract, clove extract, eaglewood extract, cantaloupe extract, apple extract, citrus extract, coffee extract, glyceryl caprylate, menthol, peppermint oil, peppermint extract, vegetable gums, and animal gums.

9. A filter element as claimed in any one of claims 1 to 8, wherein the filter body is provided with activated carbon inside.

10. A smoking article comprising a body and an circumscribing filter, wherein the circumscribing filter is a filter element according to any one of claims 1-9, and wherein the circumscribing filter is adapted to be inserted into the body for smoking and filtering smoke generated by the body. Preferably, the smoking material of the body comprises tobacco or non-tobacco. Preferably, the non-tobacco comprises tea leaves; the tea comprises green tea, black tea, white tea, black tea, yellow tea, scented tea, oolong tea, fruit tea or herb tea.