CN219108720U - Hollow filter stick with functional strips on inner wall and aerosol generating product - Google Patents

Abstract

The utility model discloses a hollow filter rod with functional strips on the inner wall and an aerosol generating product, wherein the hollow filter rod comprises a filter rod main body (1), a hollow channel (3) extending axially is arranged in the filter rod main body (1), and the functional strips (2) extending along the inner wall of the filter rod main body (1) are arranged in the hollow channel (3). According to the utility model, the flavoring gel strips are directly arranged on the inner surface of the hollow channel, so that the smoke in the hollow channel can be more effectively supplemented with fragrance, and the flavoring substances overflow more fully.

Description

Hollow filter stick with functional strips on inner wall and aerosol generating product

Technical Field

The utility model relates to the field of cigarette filter stick preparation, in particular to a hollow filter stick with functional strips on the inner wall and an aerosol generating product.

Background

With consumer importance on health problems and the increasing demand for personalized experience of cigarette products, the tobacco industry is continuously responding to consumer demand upgrading, and various smoking articles with tar and harm reducing effects are developed. Wherein, the heating cigarette is different from the traditional cigarette product in the cigarette heating mode, so that the heating cigarette can provide healthier smoking experience while meeting the sensory requirements of consumers on the cigarette product.

The existing aerosol generating products comprise a smoke generating section, a supporting section, a cooling section and a filtering section, wherein the supporting section, the cooling section and the filtering section can all use tow-shaped filter sticks, and the filter sticks are usually acetate tow filter sticks (acetate fibers are hereinafter abbreviated as acetate fibers) which can filter harmful components in smoke. The solid filter stick has the characteristic of high retention rate, the retention rate of smoke needs to be reduced in the design of heating cigarettes, and a better method in the industry is to make the filter stick into a hollow filter stick.

At present, the production of the hollow filter stick basically adopts the step of adding a rigid stick at the rear end of the converging and gathering of the horn mouth of a conventional filter stick forming machine, so that a hollow structure is formed at the position occupied by the rigid stick after the acetate fiber bundles are gathered.

With the continuous upgrading of cigarette flavoring technology, each section of the cigarette gradually has flavoring requirements, and particularly for the novel tobacco product heating cigarette, the supporting section is usually an acetate fiber hollow filter rod. The section is close to a heat source, the smoke temperature is higher than that of the lip-end acetate fiber filtering section, and the section is more suitable for volatilization and release of flavoring substances, so that the section has good application prospect in flavoring the hollow filter stick used for the supporting section.

With respect to the current hollow filter rod processing technology, the available flavoring modes are fewer, and the main processes at present are as follows: 1. adding soluble essence into plasticizer for perfuming; 2. adding granular perfume into acetate fiber before gathering; 3. directly soaking the formed hollow filter stick in the flavoring substances to adsorb the flavoring substances; 4. and coating or spraying flavoring substances on the inner surface of the hollow cavity of the formed hollow filter stick. The first of the above methods has the disadvantage that: 1. only the flavors compatible with the glyceryl triacetate can be selected, and the selection range of the essence and the flavor is narrow. 2. The flavored glyceryl triacetate can circulate throughout the system, resulting in a cumbersome replacement of the flavoring formulation, requiring thorough cleaning of the entire plasticizer application system. 3. The flavoring substances and the acetate fibers are integrated, namely, the flavoring substances are dispersed in the filter stick body, and when smoke passes through, the smoke preferentially passes through the hollow channel with small absorption resistance, so that the flavoring substances may not overflow sufficiently. The second method has the disadvantages that: 1. a separate set of granular perfume application system is needed, and the modification cost is high. 2. After the granular perfume is remoistened by condensed water, the granular perfume can be adhered to the whole forming channel, so that the equipment efficiency and the equipment stability are seriously affected. 3. There is also a combination of the flavoring material and acetate fibers, and the smoke is preferably passed through the hollow passage with low resistance to draw, resulting in insufficient spillage of the flavoring material. The third method is also problematic in that the flavoring substances are dispersed inside the filter rod body, and since the hollow cavity of the hollow filter rod is an air flow channel through which the smoke flows, the smoke will preferentially pass through the hollow cavity, so that the flavoring substances are impregnated into the hollow filter rod as a whole, and the flavoring effect on the smoke is not good, and thus it is essentially desirable to be able to flavor the smoke in the hollow channel. Aiming at perfuming the hollow channel of the hollow filter stick, the fourth method for independently coating or spraying the flavoring substances is complicated in steps and increases the cost.

In view of the above, it is a problem to be solved how to provide a flavoring layer on the inner surface of the hollow channel more simply.

The present utility model has been made to solve the above problems.

Disclosure of Invention

According to the utility model, the flavoring gel strips are directly arranged on the inner surface of the hollow channel, so that the smoke in the hollow channel can be more effectively supplemented with fragrance, and the flavoring substances overflow more fully. The utility model designs the rigid rod with the hollow cavity and the glue applying port, omits the complicated step of additionally coating or spraying the flavoring substances on the inner surface of the hollow cavity, directly forms gel-like spice strips on the inner surface of the hollow channel while the hollow filter rod is converged to form the hollow, does not need to be specially provided with a flavoring process, and has simple steps.

A first aspect of the present utility model provides a hollow filter rod with functional strips on the inner wall, the hollow filter rod comprising a filter rod body 1, the filter rod body 1 having an axially extending hollow channel 3 therein, the hollow channel 3 having functional strips 2 therein extending along the inner wall of the filter rod body 1. The hollow passage 3 is an air flow passage for ventilation of the flue gas.

Preferably, the hollow channel 3 extends axially through the filter rod body 1. That is, the hollow channel 3 may extend only partially along the filter rod body 1, or may extend entirely through the filter rod body 1.

Preferably, the functional strip 2 extends axially and through the hollow channel 3. That is, the functional rod 2 may extend only partially along the inner wall of the filter rod body 1, or may extend entirely through the filter rod body 1.

Preferably, the functional strip 2 is a gel-like spice strip, wherein the gel-like spice is selected from common spice materials in the field, such as peppermint essence and blueberry essence, more preferably, the gel-like spice also has a certain cooling function, and has a certain heat absorption effect in the process of releasing the spice by heating, even if components for improving the heat absorption performance of the gel-like spice can be added in the formula of the gel-like spice, so that the spice has a certain cooling function after being flavored, and the gel-like spice can be matched with a cooling section to play a better cooling effect in heating a non-burning cigarette, even if the cooling section can be cancelled after the gel-like spice achieves a better cooling effect. In addition, a certain amount of fumigant can be added into the gel-like spice strip, so that the smoke amount is increased while flavoring.

Preferably, the hollow channels 3 are one or more; at least one of the hollow channels 3 has the functional strip 2 therein. The hollow channels 3 may be uniformly distributed or randomly dispersed in the filter rod body 1. It is of course more preferable that when the hollow passage 3 is one, it is located at the axial center, and when the hollow passage 3 is plural, one hollow passage 3 is provided at the axial center, and the remaining hollow passages 3 are dispersed around the hollow passage 3, and the diameters of the plural hollow passages 3 are not limited in size.

Preferably, at least one functional strip 2 is arranged in the hollow channel 3. That is, one or more functional strips 2 may be disposed in one hollow passage 3, and when a plurality of functional strips 2 are disposed in one hollow passage 3, the plurality of functional strips 2 may be uniformly or randomly dispersed.

In a second aspect the utility model provides an aerosol generating article comprising a hollow filter rod with functional strips on the inner wall according to the first aspect of the utility model. The hollow filter rod of the present utility model may be a support section, a cooling section or a filtration section of an aerosol generating article, wherein it is more preferred that it is directly used as a support section. Because the supporting section is closer to the smoke generating section and the temperature is high, the aroma components can be fully released; and the hollow structure perfectly meets the requirement of low interception filter stick for heating cigarettes.

The utility model relates to a preparation method of a hollow filter stick with functional strips on the inner wall, which comprises the following steps:

A. a rigid rod 11 is arranged at a converging port of the filter rod forming machine, a hollow cavity 12 is formed in the rigid rod 11, and an adhesive applying port 13 and an adhesive inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11;

B. filling the hollow chamber 12 with a functional substance;

C. and (3) operating a filter rod converging process, wherein the rigid rod 11 occupies a hollow position to form the hollow channel 3 in the filter rod converging process, and functional substances in the cavity chamber 12 flow out of the glue applying port 13 and form functional strips 2 on the inner wall of the filter rod main body 1.

Preferably, the rigid bars 11 are one or more. The number of rigid rods 11 corresponds to the number of hollow channels 3. Furthermore, when a certain hollow channel 3 does not have the functional strip 2, the rigid rod 11 corresponding to the hollow channel 3 does not need to be provided with a hollow chamber, and an adhesive applying port is not required.

Preferably, the sizing ports 13 may be located at any position of the rigid rod 11, both upstream, downstream and mid-stream. The different positions of the glue application openings 13 allow the extension of the functional strip 2. It is of course more preferred that the glue sites 13 are located downstream of the rigid rods 11, through which the functional rods 2 extend axially.

Preferably, one or more of the glue ports 13. The number of glue application openings 13 corresponds to the number of functional strips 2. That is, the positions and the number of the glue applying openings 13 are variable, so that when there are a plurality of functional strips 2, some of them extend only partially along the inner wall of the filter rod body 1, and some of them extend entirely through the filter rod body 1.

The glue inlet 14 is usually one, but a plurality of glue inlets may be provided.

The glue inlet 14 is communicated with the external glue barrel, the pump and the cavity chamber, so that functional substances in the glue barrel can be filled into the cavity chamber through the pump, and the inner wall of the hollow filter stick is coated with the aroma-enhancing gel strip uninterruptedly in the process of collecting the acetate fiber bundles.

Compared with the prior art, the utility model has the following beneficial effects:

1. because the hollow cavity of the hollow filter stick is an airflow channel through which smoke circulates, the smoke can pass through the hollow cavity preferentially, so that the overall flavoring effect of the hollow filter stick on the smoke is not good.

2. The utility model designs the rigid rod with the hollow cavity and the glue applying port, omits the complicated step of additionally coating or spraying the flavoring substances on the inner surface of the hollow cavity, directly forms gel-like spice strips on the inner surface of the hollow channel while the hollow filter rod is converged to form the hollow, does not need to be specially provided with a flavoring process, and has simple steps.

3. When the spice formulas with different flavor characteristics are replaced, only the cavity chamber of the rigid rod is required to be cleaned, and the spice formulas are not related to other parts of the equipment, so that the replacement is convenient.

4. The perfuming of the hollow filter stick can be completed by only adding the rigid stick on the existing filter stick converging equipment, and the equipment has low reconstruction cost and high efficiency.

5. Compared with the perfuming method of adding the soluble essence into the plasticizer, the flavoring essence has wide selection range, and can be filled into the hollow cavity of the rigid rod. Compared with the perfuming method of adding the granular perfume into the acetate fibers before gathering, the utility model avoids the defects that the granular perfume is adhered to the whole forming channel after being wetted by condensed water, and the equipment efficiency and the equipment stability are affected.

Drawings

Fig. 1 is a schematic structural diagram of a hollow filter rod with functional strips on the inner wall of the hollow filter rod in embodiment 1;

fig. 2 is a schematic perspective view of a hollow filter rod with functional strips on the inner wall of the hollow filter rod in embodiment 1;

fig. 3 is a schematic perspective view (perspective view) of a hollow filter rod with functional strips on the inner wall of example 1;

FIG. 4 is a schematic view of the structure of a rigid rod according to example 1;

FIG. 5 is a schematic view (perspective view) of the rigid rod structure of example 1;

fig. 6 is a schematic structural diagram of a hollow filter rod with functional strips on the inner wall of the hollow filter rod in example 2;

fig. 7 is a schematic structural view (perspective view) of a hollow filter rod with functional strips on the inner wall of example 2;

FIG. 8 is a schematic view of the structure of a rigid rod according to example 2;

fig. 9 is a schematic view (perspective view) of the structure of a rigid rod of example 2.

Reference numerals in the description of the drawings: 1-filter stick main body, 2-functional strips, 3-hollow channel, 11-rigid stick, 12-hollow chamber, 13-glue applying port and 14-glue inlet port.

Detailed Description

The present utility model will be described in further detail with reference to examples.

It will be appreciated by those skilled in the art that the following examples are illustrative of the present utility model and should not be construed as limiting the scope of the utility model. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The materials or equipment used are conventional products available from commercial sources, not identified to the manufacturer.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wireless connections.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. The orientation or state relationship indicated by the terms "inner", "upper", "lower", etc. are orientation or state relationship based on the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "provided" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model is understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Example 1

As shown in fig. 1-3, the present embodiment is a hollow filter rod having only one hollow channel inside, and the specific structure is as follows: the hollow filter rod comprises a filter rod main body 1, wherein an axially extending hollow channel 3 is arranged in the filter rod main body 1, and a functional strip 2 extending along the inner wall of the filter rod main body 1 is arranged in the hollow channel 3. The hollow passage 3 is an air flow passage for ventilation of the flue gas.

The hollow channel 3 axially penetrates the filter rod main body 1. The functional strip 2 extends axially and through the hollow channel 3. The functional strip 2 is a gel-like spice strip. The gel-like perfume is selected from peppermint essence.

The hollow channel 3 is one and is located at the axial center. Three functional strips 2 are arranged in the hollow channel 3.

The hollow filter rod directly serves as a support section for the aerosol-generating article.

As shown in fig. 4-5, the preparation method of the hollow filter stick comprises the following steps:

A. a rigid rod 11 is arranged at a converging port of the filter rod forming machine, a hollow cavity 12 is formed in the rigid rod 11, and an adhesive applying port 13 and an adhesive inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11;

B. filling the hollow chamber 12 with a functional substance;

C. and (3) operating a filter rod converging process, wherein the rigid rod 11 occupies a hollow position to form the hollow channel 3 in the filter rod converging process, and functional substances in the cavity chamber 12 flow out of the glue applying port 13 and form functional strips 2 on the inner wall of the filter rod main body 1.

The rigid rod 11 is one.

The number of the glue applying ports 13 is three.

The downstream end of the rigid rod of the embodiment is provided with a plurality of glue applying ports 13 which can uniformly pump out the aroma-enhancing gel and a glue inlet 14 which is connected with an external glue barrel and a pump, and the inner wall of the hollow filter rod is coated with the aroma-enhancing gel strip uninterruptedly in the process of collecting the acetate fiber bundles.

Example 2

As shown in fig. 6-7, the present embodiment is a hollow filter rod having five hollow channels therein, and the specific structure is as follows: the hollow filter rod comprises a filter rod main body 1, wherein an axially extending hollow channel 3 is arranged in the filter rod main body 1, and a functional strip 2 extending along the inner wall of the filter rod main body 1 is arranged in the hollow channel 3. The hollow passage 3 is an air flow passage for ventilation of the flue gas.

The hollow channel 3 axially penetrates the filter rod main body 1. The functional strip 2 extends axially and through the hollow channel 3. The functional strip 2 is a gel-like spice strip. The gel-like perfume is selected from peppermint essence.

The number of the hollow channels 3 is five, one hollow channel 3 is arranged at the axial center, the other four hollow channels 3 are dispersed around the hollow channel 3, the diameter of the hollow channel 3 at the center is slightly larger, and the diameters of the four hollow channels 3 at the periphery are slightly larger. Located at the axial centre. Three functional strips 2 are arranged in the hollow channel 3 in the center, while the four surrounding hollow channels 3 are not provided with functional strips 2, and the purpose of the functional strips is only to circulate smoke.

The hollow filter rod directly serves as a support section for the aerosol-generating article.

As shown in fig. 8-9, the preparation method of the hollow filter stick comprises the following steps:

A. a rigid rod 11 is arranged at a converging port of the filter rod forming machine, a hollow cavity 12 is formed in the rigid rod 11, and an adhesive applying port 13 and an adhesive inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11;

B. filling the hollow chamber 12 with a functional substance;

C. and (3) operating a filter rod converging process, wherein the rigid rod 11 occupies a hollow position to form the hollow channel 3 in the filter rod converging process, and functional substances in the cavity chamber 12 flow out of the glue applying port 13 and form functional strips 2 on the inner wall of the filter rod main body 1.

The number of rigid bars 11 is five.

The number of the glue applying ports 13 is three, and only the central rigid rod 11 is provided with the glue applying ports 13.

The downstream end of the rigid rod of the embodiment is provided with a plurality of glue applying ports 13 which can uniformly pump out the aroma-enhancing gel and a glue inlet 14 which is connected with an external glue barrel and a pump, and the inner wall of the hollow filter rod is coated with the aroma-enhancing gel strip uninterruptedly in the process of collecting the acetate fiber bundles.

Claims (7)

1. The hollow filter rod with the functional strips on the inner wall is characterized by comprising a filter rod main body (1), wherein an axially extending hollow channel (3) is formed in the filter rod main body (1), and the functional strips (2) extending along the inner wall of the filter rod main body (1) are arranged in the hollow channel (3).

2. Hollow filter rod with functional strips on the inner wall according to claim 1, characterized in that the hollow channel (3) extends axially through the filter rod body (1).

3. Hollow filter rod with functional strips on the inner wall according to claim 1, characterized in that the functional strips (2) extend axially and through the hollow channel (3).

4. Hollow filter rod with functional strips on the inner wall according to claim 1, characterized in that the functional strips (2) are gel-like fragrance strips.

5. Hollow filter rod with functional strips on the inner wall according to claim 1, characterized in that the hollow channels (3) are one or more;

at least one of the hollow channels (3) has the functional strip (2) therein.

6. Hollow filter rod with functional strips on the inner wall according to claim 5, characterized in that at least one functional strip (2) is arranged in the hollow channel (3).

7. An aerosol generating article comprising a hollow filter rod having functional strips on the inner wall of the rod as claimed in any one of claims 1 to 6.

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