CN218999516U - Hollow filter stick with functional strips in inner wall grooves and aerosol generating product - Google Patents

Abstract

The utility model discloses a hollow filter rod with functional strips in grooves 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 grooves are directly formed in the inner surfaces of the hollow channels, the aroma-enhancing gel strips are arranged in the grooves, so that the aroma of the smoke in the hollow channels can be more effectively supplemented, the aroma-enhancing substances overflow more fully, and the gel application amount is greatly increased by the grooves.

Description

Hollow filter stick with functional strips in inner wall grooves 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 in inner wall grooves 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 grooves are directly formed in the inner surfaces of the hollow channels, the aroma-enhancing gel strips are arranged in the grooves, so that the aroma of the smoke in the hollow channels can be more effectively supplemented, the aroma-enhancing substances overflow more fully, and the gel application amount is greatly increased by the grooves. The utility model designs the rigid rod with the hollow cavity and the glue applying port, the bulge is arranged outside the rigid rod, the complicated steps of additionally coating or spraying the flavoring substances on the inner surface of the hollow cavity are omitted, the gel-like spice strips are directly formed on the inner surface of the hollow channel while the hollow filter rod is converged to form the hollow, the special flavoring process is not required, and the steps are simple.

The first aspect of the utility model provides a hollow filter rod with functional strips in grooves on the inner wall, which comprises a filter rod main body 1, wherein an axially extending hollow channel 3 is arranged in the filter rod main body 1, a groove 4 extending along the inner wall of the filter rod main body 1 is arranged in the hollow channel 3, and the functional strips 2 are arranged in the groove 4. 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 recess 4 extends axially and through the hollow channel 3. That is, the grooves 4 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 essence spice materials commonly used in the art, 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 a certain component 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 gel-like 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 gel-like spice can be removed after reaching 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 said hollow channels 3 has said recess 4 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 groove 4 is provided in the hollow channel 3. That is, one or more grooves 4 may be provided in one hollow passage 3, and when a plurality of grooves 4 are provided in one hollow passage 3, the plurality of grooves 4 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 in the inner wall grooves of 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 preparation method of the hollow filter stick with the functional strips in the inner wall grooves 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, a glue applying port 13 and a glue inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11, a protrusion 15 is formed in the outer part of the rigid rod 11, and the glue applying port 13 is positioned on the protrusion 15;

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

C. the filter rod collecting process is operated, the rigid rod 11 occupies a hollow position to form the hollow channel 3 in the filter rod collecting process, the protrusion 15 forms the groove 4, and functional substances in the cavity chamber 12 flow out of the glue applying port 13 and form the functional strip 2 in the groove 4.

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, the number of the protrusions 15 is one or more, and the corresponding number of the glue applying ports 13 is one or more. The number of the protrusions 15 corresponds to the number of the grooves 4, and the number of the glue applying ports 13 corresponds to the number of the 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. The hollow channel 3 of the hollow filter rod is internally provided with a groove 4 extending along the inner wall of the filter rod main body 1, the groove 4 is internally provided with a functional strip 2, and the gel application amount is greatly increased by the groove.

4. 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.

5. 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.

6. 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 view of a hollow filter rod with functional strips in the inner wall groove of embodiment 1;

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

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

reference numerals in the description of the drawings: 1-filter stick main body, 2-functional strips, 3-hollow channels, 4-grooves, 11-rigid sticks, 12-hollow chambers, 13-glue applying ports, 14-glue inlet ports and 15-bulges.

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, a groove 4 extending along the inner wall of the filter rod main body 1 is arranged in the hollow channel 3, and a functional strip 2 is arranged in the groove 4. 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 recess 4 extends axially 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 grooves 4 are arranged in the hollow channel 3, and each groove is internally provided with one functional strip 2.

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, a glue applying port 13 and a glue inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11, a protrusion 15 is formed in the outer part of the rigid rod 11, and the glue applying port 13 is positioned on the protrusion 15;

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 in the filter rod converging process to form the hollow channel 3, the protrusion 15 forms the groove 4, 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 groove 4.

The rigid rod 11 is one.

The number of the protrusions 15 is three, and each protrusion 15 is provided with one glue applying port 13, so that 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, a groove 4 extending along the inner wall of the filter rod main body 1 is arranged in the hollow channel 3, and a functional strip 2 is arranged in the groove 4. 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 recess 4 extends axially 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 grooves 4 are arranged in the hollow channel 3 in the center, one functional strip 2 is arranged in each groove, and the surrounding four hollow channels 3 are not provided with functional strips 2, so that only smoke can circulate.

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, a glue applying port 13 and a glue inlet 14 which are communicated with the hollow cavity 12 are formed in the outer wall of the rigid rod 11, a protrusion 15 is formed in the outer part of the rigid rod 11, and the glue applying port 13 is positioned on the protrusion 15;

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 in the filter rod converging process to form the hollow channel 3, the protrusion 15 forms the groove 4, 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 groove 4.

The number of the rigid rods 11 is four.

The number of the protrusions 15 is three, and each protrusion 15 is provided with one glue applying port 13, so that 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 in the grooves on the inner wall is characterized by comprising a filter rod main body (1), wherein a hollow channel (3) extending in the axial direction is formed in the filter rod main body (1), a groove (4) extending along the inner wall of the filter rod main body (1) is formed in the hollow channel (3), and the functional strips (2) are arranged in the groove (4).

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

3. Hollow filter rod with functional strips in inner wall grooves according to claim 1, characterized in that the grooves (4) extend axially and through the hollow channel (3).

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

5. Hollow filter rod with functional strips in the inner wall grooves 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 groove (4) therein.

6. Hollow filter rod with functional strips in inner wall grooves according to claim 5, characterized in that at least one groove (4) is provided in the hollow channel (3).

7. An aerosol generating article comprising a hollow filter rod with functional strips in the inner wall grooves of any one of claims 1-6.

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