Aerosol generating product with hollow end part

Abstract

The utility model discloses an aerosol generating product with a hollow end part. The aerosol generating product comprises outer wrapping paper (1), and an aerosol generating substrate (2), a supporting piece (3), a composite cooling filtering piece (4) and an end part hollow piece (5) which are positioned in the outer wrapping paper (1), the composite cooling filter part (4) comprises a hollow cooling part (41) and a filter part (42); the outer side of the aerosol generating substrate (2) is wrapped with cigarette paper (21); and aroma-enhancing blasting beads (421) are arranged in the filtering piece (42). The aroma-enhancing blasting beads are arranged in the filter piece, and the end hollow piece is arranged at the downstream of the filter piece, so that the positioning requirement on the aroma-enhancing blasting beads is reduced when the aroma-enhancing blasting beads are applied in the filter piece. According to the preparation method, the five-element aerosol generating product can be prepared on the basis of not changing the original four-element compound equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of heat-not-burn cigarettes, and particularly relates to an aerosol generating article with a hollow end portion. Background Art

[0002] With the increasing attention of consumers to health issues and the rising demand for personalized experiences of cigarette products, the tobacco industry has continuously responded to the demand upgrade of consumers and developed various smoking products with reduced tar and harm. Among them, heat-not-burn cigarettes, due to their different cigarette heating methods from traditional cigarette products, can provide a healthier smoking experience while meeting the sensory needs of consumers for cigarette products.

[0003] Currently, the common methods for flavor enhancement of cigarette smoke are adding flavor by setting a flavor-enhancing gel layer in the support section or adding flavor beads in the filter section. The problem with adding flavor in the support section is that the aroma decays significantly during the baking process, and the aroma quality consistency between the front and back is poor. Usually, the aroma is strong in the early stage of smoking, but there is almost no flavoring effect in the later stage of smoking. Therefore, researchers have also tried to find methods for slow-release flavoring in the support section. The problem with adding flavor beads in the acetate fiber tow filter section is that since the acetate fiber tow filter section is located at the end, when adding flavor beads, the flavor beads need to be strictly positioned to ensure that they cannot be exposed from the downstream end face of the acetate fiber tow filter section (the end face facing the lip end side). Once there is any exposure of flavor beads on the end face of the acetate fiber tow filter section, it will be regarded as a defective product. In addition, even if the flavor beads are not exposed and are only adjacent to the end face of the acetate fiber tow filter section, there is still a risk of the outflow of the flavoring substances inside the flavor beads after being pinched by consumers. Therefore, this requires that the flavor bead addition process strictly controls the addition position of the flavor beads in the acetate fiber tow filter section.

[0004] In addition, the end of the existing aerosol generating article entering the lip end is usually a solid acetate fiber tow rod, which currently has the following problems: 1. The problem of hot lips caused by relatively high flue gas temperature. As the filtering part of the cigarette, the acetate fiber tow rod is close to the aerosol generating matrix section (i.e., the tobacco section) and has a significant filtering effect, which may lead to a relatively high temperature of the flue gas after passing through the filter. In addition, when the flue gas passes through the solid acetate fiber tow rod, the flue gas stays in the solid acetate fiber tow rod for a long time, and part of the heat is retained, causing the temperature of the flue gas near the lip end to rise, thus increasing the risk of hot lips. 2. Consumers' safety concerns about direct lip contact with acetate fiber tow. Acetate fiber is a man-made fiber widely used in the production of cigarette filters. Although it has been specially treated to meet food safety and hygiene standards, consumers may still have certain safety concerns about direct lip contact with such materials. Especially when there are tiny fiber shedding or burrs on the surface of the acetate fiber tow rod, it may increase the irritation or discomfort to the lip skin.

[0005] On the other hand, existing aerosol-generating articles generally have a quaternary structure, including an aerosol-generating matrix section, a support section, a cooling section, and a filter section. Therefore, the current corresponding production equipment is all quaternary composite equipment, and it is impossible to prepare a quinary-structure aerosol-generating article.

[0006] Therefore, how to ensure good consistency before and after flavor enhancement, reduce the process difficulty of adding flavor beads to the acetate fiber tow filter section, avoid the problem of the filter tip being too hot, and reduce the safety concerns of consumers' lips coming into contact with the filter tip are problems that people urgently hope to solve.

[0007] To solve the above problems, the present utility model is proposed. Content of the utility model

[0008] The present utility model provides an aerosol-generating article with a hollow end, which includes an outer wrapper 1, and an aerosol-generating matrix 2, a support 3, a composite cooling and filtering member 4, and a hollow end member 5 located inside the outer wrapper 1;

[0009] The composite cooling and filtering member 4 includes a hollow cooling member 41 and a filtering member 42, and the outside of the hollow cooling member 41 and the filtering member 42 is wrapped with a forming paper 43; the outer wrapper 1 outside the composite cooling and filtering member 4 and the hollow end member 5 is wrapped with a tipping paper 6;

[0010] The outside of the aerosol-generating matrix 2 is wrapped with a cigarette paper 21;

[0011] The filtering member 42 has a flavor bead 421 therein.

[0012] Preferably, the center point of the flavor bead 421 is located on one side of the central axis of the filtering member 42 close to the hollow cooling member 41. That is to say, the flavor bead 421 is located on the side of the flavor bead 421 close to the hollow cooling member 41.

[0013] Preferably, the hollow cooling member 41 has ventilation holes 411 passing through the tipping paper 6, the outer wrapper 1, the forming paper 43, and the wall of the hollow cooling member 41. External air enters the hollow interior of the hollow cooling member 41 through the ventilation holes 411 to converge with the smoke.

[0014] Preferably, the hollow cooling member 41 is a hollow acetate fiber tow tube, a hollow paper tube, or a hollow non-woven fabric tube, and the wall thickness of the hollow cooling member 41 is 0.2 - 1.2 mm.

[0015] Preferably, the hollow end member 5 is a hollow acetate fiber tow tube, a hollow paper tube, or a hollow non-woven fabric tube, and the wall thickness of the hollow end member 5 is 0.5 - 1.5 mm;

[0016] The axial length of the end hollow member 5 is one to two times the diameter of the end hollow member 5.

[0017] Preferably, the support member 3 is a hollow pipe fitting with a grooved corrugated structure, which includes a pipe wall 31 and a pipe cavity 32. The pipe wall 31 has a grooved corrugated structure, which includes an outer layer 311, an inner layer 312, and a grooved corrugated layer 313 located therebetween. The outer layer 311 defines the outer surface of the support member 3, and the inner layer 312 defines the pipe cavity 32.

[0018] The structure of the support member 3 needs to be determined according to the form of the aerosol generating substrate 2. Since the aerosol generating substrate 2 in the present utility model is reconstituted tobacco shreds wrapped in cigarette paper, reconstituted tobacco sheets, or an integrally formed tobacco rod, the purpose of the support member 3 is only to support and provide an air flow channel, so it can be an ordinary pipe fitting with a hollow structure. Of course, the hollow pipe fitting with a grooved corrugated structure provided by the present utility model is only a preferred solution, and any support structure in the art that can support the aerosol generating article and allow the passage of smoke is applicable, such as a hollow acetate fiber tow tube, a hollow paper tube, or a hollow non-woven fabric tube.

[0019] The outer layer 311 is selected from paper materials; the inner layer 312 is selected from tow-like materials or sheet materials. The tow-like materials include acetate fiber tow and polylactic acid tow, and the sheet materials include paper materials, reconstituted tobacco, or polymer material sheets; the grooved corrugated layer 313 is selected from paper materials or non-woven fabrics with grooved structures. In the actual selection process, if a wrinkled sheet is needed, non-woven fabric is preferably selected, and if a smooth sheet is needed, paper is preferably selected. Additionally, preferably, the sheet material of the grooved corrugated layer is pre-pressed to form grooved creases first, and then wrapped with the outer layer 211 and the inner layer 212 to form the pipe wall with a grooved corrugated structure. When preparing the gathered sheet rod 221 in the corresponding pipe cavity, the sheet material is also pre-pressed to form indentations first and then gathered, which facilitates the gathering process.

[0020] The cross-sectional shape of the grooves in the grooved corrugated layer 313 is "U" shaped or "V" shaped;

[0021] Preferably, the support member 3 has a flavor enhancing component therein;

[0022] Preferably, the flavor of the flavor enhancing component in the support member 3 is different from the flavor characteristics of the flavor enhancing beads 421 in the filter member 42.

[0023] Preferably, the groove corrugated layer 313 further has an aroma enhancing substance layer, and the aroma enhancing substance layer serves as the aroma enhancing component. Any commonly used essence or flavor can be selected. For example, the aroma enhancing substance is selected from natural fragrance raw materials and tobacco extract. Of course, in order to increase the amount of smoke generated, the aroma enhancing substance layer may also include a smoke generator, and the smoke generating substance is selected from propylene glycol and glycerol.

[0024] Whether an aroma enhancing component is provided in the support member 3 herein, and the setting of the aroma enhancing substance layer are determined according to actual circumstances. That is to say, it can be that only the aroma enhancing beads 421 are provided in the filter member 42, and the support member 3 does not have the function of adding fragrance, or both the support member 3 and the filter member 42 can be scented, and the positions and methods of adding fragrance can be very flexible. The provided aroma enhancing substance layer can be an aroma enhancing gel layer, or an aroma enhancing gel layer with a porous adsorption material (such as activated carbon). The porous adsorption material can adsorb more aroma enhancing substances, improve the fragrance loading capacity, and further, when the aroma enhancing substances are adsorbed into the porous material, they can also play a role in slow release when heated, thereby achieving the effect of slow release of aroma.

[0025] Preferably, the aerosol forming substrate 2 is in a sheet shape, a filament shape, or an integrally formed tobacco rod.

[0026] The second aspect of the present invention provides a preparation method of the aerosol generating article according to the first aspect of the present invention, including the following steps:

[0027] S1, first use the forming paper 43 to laminate the hollow cooling member 41 and the filter member 42 to obtain the composite cooling and filtering member 4;

[0028] S2, then use the cigarette paper 21 to wrap the aerosol forming substrate 2;

[0029] S3, then use the outer wrapping paper 1 to laminate the aerosol forming substrate 2, the support member 3, the composite cooling and filtering member 4, and the end hollow member 5;

[0030] S4, then wrap the tipping paper 6 outside the outer wrapping paper 1 on the outside of the composite cooling and filtering member 4 and the end hollow member 5 to obtain the aerosol generating article.

[0031] When laminating the aerosol generating article of the present invention, multiple segments can be laminated at one time, and then cut into multiple aerosol generating articles. When laminating, the multiple segments of aerosol generating articles are connected through the end hollow member 5 and / or the aerosol forming substrate 2, and the connection part has an axial length of 2 times the end hollow member 5 and / or the aerosol forming substrate 2. After cutting, each aerosol generating article has a complete end hollow member 5 and / or aerosol forming substrate 2. More preferably, it is cut at the end hollow member 5.

[0032] Compared with the prior art, the utility model has the following beneficial effects:

[0033] 1. The filter element of the utility model is provided with flavor-enhancing bursting beads. Since an end hollow member is arranged downstream of the filter element, the positioning requirement for the flavor-enhancing bursting beads is reduced when the flavor-enhancing bursting beads are applied in the filter element. Even if the flavor-enhancing bursting beads are close to the downstream end face of the acetate fiber tow filter section (the end face facing the lip end side), or even exposed from the downstream end face of the acetate fiber tow filter section, due to the existence of the end hollow member, they will not flow out after being pinched, and the flavor-enhancing substances in the end hollow member can also play a role in flavor-enhancing the smoke when the smoke passes through. The utility model arranges an end hollow member downstream of the filter element, reducing the process difficulty of adding flavor-enhancing bursting beads in the filter element.

[0034] 2. The flavor-enhancing component is arranged in the support member of the utility model, and flavor-enhancing bursting beads are added in the filter element. The flavor-enhancing bursting beads in the filter element play a role in supplementing the aroma and converting the fragrance type of the flavor-enhancing component in the support member in the middle and late stages of suction. Specifically, the support member enhances the flavor of the smoke in the early stage of suction. When the consumer feels that the aroma supplement during suction is insufficient, the bursting beads can be manually pinched, so as to enhance the flavor of the smoke in the second half, achieving the effect of aroma supplement in the later stage. Further, the aroma flavor characteristics of the flavor-enhancing component in the support member and the flavor-enhancing bursting beads in the filter element can be inconsistent, achieving the effect of changing the style characteristics in the early and late stages of suction. For example, the flavor characteristic of the flavor-enhancing component in the support member is fruit flavor, while the flavor characteristic of the flavor-enhancing bursting beads in the filter element is chocolate flavor. In this way, when the consumer smokes until the fruit flavor style is not obvious, the flavor-enhancing bursting beads are manually pinched, so as to change to chocolate flavor in the second half of the suction process.

[0035] 3. The utility model arranges an end hollow member downstream of the filter element. The end hollow member extends the distance from the aerosol generation matrix section to the mouth end, so the temperature on the outer surface of the end hollow member is lower than that of the filter element surface, thus avoiding the problem that the mouth end surface of the aerosol generation article is scalding.

[0036] 4. The end hollow member of the utility model has a central air flow channel inside, and its interception of the smoke is small, so the residence time of the smoke in the end hollow member is short, which also avoids the smoke transferring heat to the outer surface, thus further avoiding the problem that the mouth end surface of the aerosol generation article is scalding. At the same time, due to the small interception of the smoke by the end hollow member, arranging the end hollow member downstream of the filter element will not significantly increase the draw resistance.

[0037] 5. The end hollow member of the utility model is a hollow acetate fiber tow tube, a hollow paper tube or a hollow non-woven fabric tube. Since it is hollow inside, the material area in contact with the consumer's oral cavity is reduced, reducing the consumer's safety concerns.

[0038] 6. In terms of the preparation method, the present utility model can prepare a five - element aerosol - generating article without changing the original four - element composite equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic structural diagram of an aerosol - generating article with a hollow end;

[0040] Figure 2 It is a schematic structural diagram of a mouthpiece rod before slitting (the tipping paper 6 has been wrapped, and the dotted line is the slitting position);

[0041] Figure 3 It is a schematic structural diagram of the support member 3;

[0042] Names of the reference numerals in the BRIEF DESCRIPTION OF THE DRAWINGS: 1 - outer wrapping paper, 2 - aerosol - generating matrix, 3 - support member, 4 - composite cooling and filtering member, 5 - end - hollow member, 6 - tipping paper;

[0043] 21 - cigarette paper, 31 - pipe wall, 32 - lumen, 41 - hollow cooling member, 42 - filtering member, 43 - forming paper;

[0044] 411 - ventilation holes, 421 - flavor - enhancing bursting beads;

[0045] 311 - outer layer, 312 - inner layer, 313 - grooved corrugated layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The following further describes the present utility model in detail with reference to the embodiments.

[0047] Those skilled in the art will understand that the following embodiments are only used to illustrate the present utility model and should not be construed as limiting the scope of the present utility model. For those not specified in the embodiments regarding specific technologies or conditions, they shall be carried out according to the technologies or conditions described in the literature in this field or according to the product specifications. For those materials or equipment without indicating the manufacturer, they are all conventional products that can be obtained by purchase.

[0048] Those skilled in the art of this technology can understand that, unless specifically stated, the singular forms "a", "an", "the" and "said" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the description of the present utility model means the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups. It should be understood that when we say an element is "connected" to another element, it can be directly connected to other elements, or there may also be intermediate elements. In addition, the "connection" used here may include wireless connection.

[0049] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality of" is two or more. The orientation or positional relationship indicated by terms such as "inside", "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0050] In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", "provided with" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0051] Those skilled in the art of the present technology can understand that, unless otherwise defined, all terms used herein, including technical terms and scientific terms, have the same meaning as the general understanding of those of ordinary skill in the art in the field to which the present utility model belongs. It should also be understood that terms such as those defined in a general dictionary should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted with an idealized or overly formal meaning unless defined as here.

[0052] Embodiment 1

[0053] As Figure 1 shown, this embodiment provides an aerosol-generating article with a hollow end, which includes an outer wrapper 1, and an aerosol-generating matrix 2, a support 3, a composite cooling filter 4, and a hollow end member 5 located inside the outer wrapper 1;

[0054] The composite cooling filter 4 includes a hollow cooling member 41 and a filter member 42, and the outer side of the hollow cooling member 41 and the filter member 42 is wrapped with a forming paper 43; the outer wrapper 1 outside the composite cooling filter 4 and the hollow end member 5 is wrapped with a tipping paper 6;

[0055] The aerosol-generating matrix 2 is wrapped with a cigarette paper 21 on the outside;

[0056] The filter member 42 has a flavor-enhancing bursting bead 421 inside.

[0057] The center point of the flavor-enhancing bursting bead 421 is located on one side of the central axis of the filter member 42 close to the hollow cooling member 41. That is to say, the flavor-enhancing bursting bead 421 is located on the side of the flavor-enhancing bursting bead 421 close to the hollow cooling member 41.

[0058] In this embodiment, the axial length of the filter element is 8 mm, while the diameter of the bursting bead is 2.5 mm. The center point of the bursting bead is located on one side of the central axis of the filter element 42 close to the hollow cooling element 41, 0.8 mm away from the center point of the central axis of the filter element 42.

[0059] The hollow cooling element 41 is provided with ventilation holes 411 that penetrate through the tipping paper 6, the outer wrapping paper 1, the forming paper 43, and the wall of the hollow cooling element 41. External air enters the hollow interior of the hollow cooling element 41 through the ventilation holes 411 and converges with the smoke.

[0060] The hollow cooling element 41 is a hollow acetate fiber tow tube, and the wall thickness of the hollow cooling element 41 is 1.0 mm.

[0061] The end hollow element 5 is a hollow acetate fiber tow tube, and the wall thickness of the end hollow element 5 is 1.0 mm;

[0062] The axial length of the end hollow element 5 is 1.5 times the diameter of the end hollow element 5.

[0063] The support member 3 is a hollow pipe fitting with a grooved corrugated structure, which includes a pipe wall 31 and a pipe cavity 32. The pipe wall 31 is a grooved corrugated structure, which includes an outer layer 311, an inner layer 312, and a grooved corrugated layer 313 located between the two. The outer layer 311 defines the outer surface of the support member 3, and the inner layer 312 defines the pipe cavity 32.

[0064] The outer layer 311 is selected from paper materials; the inner layer 312 is selected from paper materials; the grooved corrugated layer 313 is selected from non-woven fabrics with a grooved structure.

[0065] The cross-sectional shape of the grooves in the grooved corrugated layer 313 is "V" shaped;

[0066] The aerosol-generating substrate 2 is a filamentous tobacco rod.

[0067] The method for preparing the aerosol-generating article includes the following steps:

[0068] S1. First, the hollow cooling element 41 and the filter element 42 are laminated using the forming paper 43 to obtain the composite cooling and filtering element 4;

[0069] S2. Then, the aerosol-generating substrate 2 is wrapped with cigarette paper 21;

[0070] S3. Then, the aerosol-generating substrate 2, the support member 3, the composite cooling and filtering element 4, and the end hollow element 5 are laminated using the outer wrapping paper 1;

[0071] S4, and then wrap tipping paper 6 around the outer wrapping paper 1 outside the composite cooling and filtering member 4 and the end hollow member 5 to obtain an aerosol-generating article.

[0072] As Figure 2 shown, when the aerosol-generating article of the present utility model is being compounded, 2 segments can be compounded at one time, and then cut into 2 aerosol-generating articles. When compounding, the 2 segments of aerosol-generating articles are connected through the end hollow member 5, and the connection part has an axial length of the end hollow member 5 that is 2 times. After cutting, each aerosol-generating article has a complete end hollow member 5.

[0073] Embodiment 2

[0074] The difference between the aerosol-generating article of this embodiment and that of Embodiment 1 is that: an aroma-enhancing component is provided inside the support member 3;

[0075] The aroma flavor characteristics of the aroma-enhancing component inside the support member 3 and the aroma-enhancing beads 421 inside the filter member 42 are inconsistent. This is convenient for consumers to change the aroma style midway.

[0076] An aroma-enhancing substance layer is further provided on the grooved corrugated layer 313, and the aroma-enhancing substance layer serves as the aroma-enhancing component.

Claims

1. An aerosol-generating article having a hollow end, characterized in that, It includes an outer wrapper (1), and an aerosol - generating substrate (2), a support member (3), a composite cooling and filtering member (4), and an end - hollow member (5) located inside the outer wrapper (1); The composite cooling and filtering member (4) includes a hollow cooling member (41) and a filtering member (42), and a forming paper (43) wraps around the outside of the hollow cooling member (41) and the filtering member (42); The outer wrapper (1) outside the composite cooling and filtering member (4) and the end - hollow member (5) is wrapped with tipping paper (6); The aerosol - generating substrate (2) is wrapped with cigarette paper (21); The filtering member (42) has flavor - enhancing beads (421) inside; 2. The aerosol-generating article having a hollow end according to claim 1, wherein The center point of the flavor - enhancing beads (421) is located on one side of the central axis of the filtering member (42) close to the hollow cooling member (41).

3. The aerosol-generating article having a hollow end according to claim 1, characterized in that, The hollow cooling member (41) has ventilation holes (411) that penetrate through the tipping paper (6), the outer wrapper (1), the forming paper (43), and the wall of the hollow cooling member (41).

4. The aerosol-generating article having a hollow end according to claim 1, wherein, The hollow cooling member (41) is a hollow acetate fiber tow tube, a hollow paper tube, or a hollow non - woven fabric tube, and the wall thickness of the hollow cooling member (41) is 0.2 - 1.2 mm.

5. The aerosol-generating article having a hollow end according to claim 1, wherein The end - hollow member (5) is a hollow acetate fiber tow tube, a hollow paper tube, or a hollow non - woven fabric tube, and the wall thickness of the end - hollow member (5) is 0.5 - 1.5 mm; The axial length of the end - hollow member (5) is one to two times the diameter of the end - hollow member (5).

6. The aerosol-generating article having a hollow end according to claim 1, wherein, The support member (3) is a hollow pipe fitting with a grooved corrugated structure, which includes a pipe wall (31) and a pipe cavity (32). The pipe wall (31) has a grooved corrugated structure, which includes an outer layer (311), an inner layer (312), and a grooved corrugated layer (313) located between the two. The outer layer (311) defines the outer surface of the support member (3), and the inner layer (312) defines the pipe cavity (32); The outer layer (311) is selected from paper materials; The inner layer (312) is selected from tow - shaped materials or sheet materials. Tow - shaped materials include acetate fiber tow, polylactic acid tow, and sheet materials include paper materials, reconstituted tobacco leaves, or polymer material sheets; The grooved corrugated layer (313) is selected from paper materials or non - woven fabrics with grooved structures.

7. The aerosol-generating article having a hollow end according to claim 6, wherein, The cross - sectional shape of the grooves in the grooved corrugated layer (313) is "U" - shaped or "V" - shaped.

8. The aerosol-generating article having a hollow end according to claim 6, characterized in that, The support member (3) has a flavor - enhancing component inside; The flavor - enhancing component inside the support member (3) and the flavor - enhancing beads (421) inside the filtering member (42) have inconsistent aroma and flavor characteristics.

9. The aerosol-generating article having a hollow end according to claim 8, wherein, The grooved corrugated layer (313) also has a flavor - enhancing substance layer, and the flavor - enhancing substance layer serves as the flavor - enhancing component.

10. The aerosol-generating article having a hollow end according to claim 1, wherein, The aerosol - generating substrate (2) is in the form of flakes, filaments, or an integrally formed tobacco rod.

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