Aerosol generating articles and aerosol generating systems

Abstract

An aerosol-generating article is disclosed, comprising: a first portion comprising a plurality of crimped pieces of paper impregnated with aerosol-generating elements; a second portion comprising a tobacco element; a third portion comprising a cooling element; and a fourth portion comprising a filter element, wherein the first portion, second portion, third portion, and fourth portion are aligned sequentially along the longitudinal direction of the aerosol-generating article.

Description

Technical Field

[0001] The present invention relates to aerosol generating articles and aerosol generating systems.

Background Art

[0002] Recently, there has been an increasing demand for alternatives to conventional cigarettes and smoking articles. For example, there is an increasing demand for methods of generating an aerosol by heating an aerosol generating substance in a cigarette without combustion of the cigarette. Accordingly, research on smoking articles and devices operating in various ways has been actively advanced.

Summary of the Invention

Problems to be Solved by the Invention

[0003] The problem to be solved by the present invention is to provide an aerosol generating article and an aerosol generating system capable of providing a rich aerosol generation amount and nicotine transfer amount.

[0004] The problem to be solved through the examples is not limited to the above-described problems, and problems not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which the examples belong from the present specification and the accompanying drawings.

Means for Solving the Problems

[0005] One embodiment provides an aerosol generating article including a first portion including a plurality of coiled pieces of paper impregnated with an aerosol generating element, a second portion including a tobacco element, a third portion including a cooling element, and a fourth portion including a filter element, wherein the first portion, the second portion, the third portion, and the fourth portion are sequentially aligned along the longitudinal direction of the aerosol generating article.

[0006] Another embodiment provides an aerosol generating system that includes an aerosol generating article, a storage space for containing the aerosol generating article, a heating element for heating the aerosol generating article, and a battery for supplying power to the heating element.

[0007] The means of solving the problem are not limited to those described above and may include any matters that can be inferred by an ordinary person throughout this specification. [Effects of the Invention]

[0008] According to the aerosol generating article of the present invention, the supplied heat quickly reaches the target temperature, uniformly providing the user with an abundant amount of aerosol generated and nicotine transferred throughout the duration of smoking, and the roundness and hardness of the aerosol generating article are improved, thereby improving user convenience.

[0009] The effects of the embodiment are not limited to those described above, and may include any effects that can be inferred from the description below. [Brief explanation of the drawing]

[0010] [Figure 1] This is a diagram showing an example in which an aerosol generating article is inserted into an internally heated aerosol generating device. [Figure 2] This is a diagram showing an example in which an aerosol-generating article is inserted into an externally heated aerosol generator. [Figure 3] This drawing shows another example in which an aerosol generating article is inserted into an externally heated aerosol generator. [Figure 4] This is a diagram showing an example of an aerosol generator using an induction heating method. [Figure 5] This is a schematic diagram showing the structure of an aerosol generating article according to one embodiment. [Figure 6A] This is a schematic diagram showing the configuration of an aerosol generating article according to one embodiment. [Figure 6B] This is a schematic diagram showing the configuration of an aerosol generating article related to another embodiment. [Figure 7] The drawing shows the case where the aerosol generating article of FIG. 6A is inserted into the aerosol generating device according to an embodiment. [Figure 8] The graph measures the temperature change over time of the first part of the aerosol generating article according to an embodiment.

Mode for Carrying Out the Invention

[0011] One embodiment includes a first part including a plurality of curled pieces of paper impregnated with an aerosol generating element, a second part including a tobacco element, a third part including a cooling element, and a fourth part including a filter element. The first part, the second part, the third part, and the fourth part provide an aerosol generating article that is sequentially aligned along the longitudinal direction of the aerosol generating article.

[0012] Also, the plurality of curled pieces of paper have an average length of 5 to 15 mm based on one direction.

[0013] Also, the piece of paper has a thickness of 100 to 300 μm.

[0014] Also, the piece of paper has a basis weight of 20 to 100 g / m 2 2.

[0015] Also, the first part contains the plurality of curled pieces of paper at 5 to 30 mg / mm based on the length of the first part.

[0016] Also, the aerosol generating element contains 70 to 99% by weight of glycerin and 1 to 30% by weight of propylene glycol based on the total weight of the aerosol generating element.

[0017] Also, the aerosol generating element contains 99% by weight or more of glycerin based on the total weight of the aerosol generating element.

[0018] Also, the aerosol generating article contains the aerosol generating element at 3 to 10 mg / mm based on the length of the aerosol generating article.

[0019] Also, the hardness of the horizontal cross-section of the first part is 90% or more, and the roundness is also 90% or more.

[0020] Another embodiment provides an aerosol generation system including an aerosol generating article, an accommodation space for accommodating the aerosol generating article, a heating element for heating the aerosol generating article, and a battery for supplying power to the heating element.

[0021] Also, the heating element can be arranged to surround the accommodation space.

[0022] Also, the aerosol generating device heats at least a part of the first part and at least a part of the second part.

[0023] The terms used in the embodiments are, as much as possible while considering the functions in the embodiments, general terms that are currently widely used. However, they may also vary depending on the intentions or precedents of those skilled in the art, the emergence of new technologies, etc. Also, in certain cases, there are terms arbitrarily selected by the applicant, and in such cases, the meaning thereof will be described in detail in the description part of the embodiment. Therefore, the terms used in this embodiment are not merely the names of the terms, and their meanings must be defined based on the overall content of this embodiment.

[0024] When a certain part in the whole specification states that a component "includes", unless there is a special description to the contrary, it does not exclude other components, and it means that other components may further be included. Also, terms such as "- part" and "- module" described in the specification mean units that process at least one function or operation, and they can be implemented by hardware or software, or also by the combination of hardware and software.

[0025] As used herein, when an expression such as “at least one of the following” precedes a sequence of components, it modifies the entire sequence of components, not each of the individual components in the sequence. For example, an expression such as “at least one of a, b, and c” must be interpreted as including a, b, c, or a and b, a and c, b and c, or a, b, and c.

[0026] Furthermore, while ordinal terms such as "first" or "second" used herein may be used to describe various components, the components should not be limited by these terms. The terms are used solely for the purpose of distinguishing one component from another.

[0027] Throughout this specification, “aerosol-generating article” means an article used for smoking. For example, an aerosol-generating article may be a conventional cigarette that is ignited and burned, or a heated cigarette that is heated by an aerosol generator. Another example is an article in which a liquid contained in a cartridge is heated.

[0028] Throughout the specification, "longitudinal direction of the aerosol generating article" means the longitudinal direction in which the length of the aerosol generating article extends or the direction in which the aerosol generating article is inserted into the aerosol generating device.

[0029] Throughout this specification, "tobacco element" means a substance containing tobacco.

[0030] Throughout this specification, “tobacco substance” means all forms of substance derived from tobacco leaves.

[0031] Throughout this specification, "cooling element" refers to an element that cools a substance. For example, a cooling element may cool an aerosol generated from a tobacco element.

[0032] Throughout this specification, "filter element" means an element containing a filtration material. For example, a filter element may include multiple fiber strands.

[0033] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings, so as to be easily implemented by a person with ordinary skill in the art to which the present invention pertains. However, the present invention can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0035] Figures 1 to 3 are diagrams showing examples in which a cigarette is inserted into an aerosol generator.

[0036] Referring to Figure 1, the aerosol generator 10000 includes a battery 11000, a control unit 12000, and a heater 13000. Referring to Figures 2 and 3, the aerosol generator 10000 further includes a vaporizer 14000. Furthermore, an aerosol generating article 20000 can be inserted into the internal space of the aerosol generator 10000.

[0037] The aerosol generator 10000 shown in Figures 1 to 3 illustrates the components related to this embodiment. Therefore, anyone with ordinary skill in the technical field related to this embodiment will understand that the aerosol generator 10000 also includes other general-purpose components in addition to those shown in Figures 1 to 3.

[0038] Furthermore, although Figures 2 and 3 show that the aerosol generator 10000 includes a heater 13000, the heater 13000 may be omitted if necessary.

[0039] Figure 1 shows the battery 11000, control unit 12000, and heater 13000 arranged in a row. Figure 2 shows the battery 11000, control unit 12000, vaporizer 14000, and heater 13000 arranged in a row. Figure 3 shows the vaporizer 14000 and heater 13000 arranged in parallel. However, the internal structure of the aerosol generator 10000 is not limited to what is shown in Figures 1 to 3. That is, the arrangement of the battery 11000, control unit 12000, heater 13000, and vaporizer 14000 can be changed depending on the design of the aerosol generator 10000.

[0040] When the aerosol generating article 20000 is inserted into the aerosol generating device 10000, the aerosol generating device 10000 can activate the heater 13000 and / or the vaporizer 14000, thereby generating aerosols from the aerosol generating article 20000 and / or the vaporizer 14000. The aerosols generated by the heater 13000 and / or the vaporizer 14000 are transmitted to the user through the aerosol generating article 20000.

[0041] If necessary, the aerosol generator 10000 can heat the heater 13000 even when the aerosol generating article 20000 is not inserted into the aerosol generator 10000.

[0042] The battery 11000 supplies the power used to operate the aerosol generator 10000. For example, the battery 11000 supplies power to heat the heater 13000 or the vaporizer 14000, and supplies the power necessary for the operation of the control unit 12000. The battery 11000 can also supply the power necessary for the operation of displays, sensors, motors, etc., provided in the aerosol generator 10000.

[0043] The control unit 12000 controls the overall operation of the aerosol generator 10000. Specifically, the control unit 12000 controls the operation of not only the battery 11000, heater 13000, and vaporizer 14000, but also other components included in the aerosol generator 10000. The control unit 12000 also checks the status of each component of the aerosol generator 10000 and determines whether the aerosol generator 10000 is in an operational state.

[0044] The control unit 12000 includes at least one processor. The processor can also be represented by an array of numerous logic gates, or by a combination of a general-purpose microprocessor and memory in which a program that can be executed by the microprocessor is stored. Furthermore, it will be understood by those with ordinary skill in the art to which this embodiment belongs that it can also be represented by other forms of hardware.

[0045] The heater 13000 can be heated by power supplied from the battery 11000. For example, if an aerosol generating article is inserted into the aerosol generating device 10000, the heater 13000 is located outside the aerosol generating article. Therefore, the heated heater 13000 can raise the temperature of the aerosol generating substance inside the aerosol generating article.

[0046] The heater 13000 is also an electrical resistance heater. For example, the heater 13000 includes a conductive track, and the heater 13000 can be heated by the flow of current through the conductive track. However, the heater 13000 is not limited to the above example, and can be any heater that heats up to a desired temperature. Here, the desired temperature may already be set in the aerosol generator 10000, or it may be set to a desired temperature by the user.

[0047] On the other hand, as another example, heater 13000 is also an induction heating heater. Specifically, heater 13000 includes a conductive coil for heating an aerosol generating article by induction heating, and the aerosol generating article includes a susceptor that can be heated by the induction heating heater.

[0048] For example, the heater 13000 includes tubular heating elements, plate heating elements, needle-shaped heating elements, or rod-shaped heating elements, and can heat the inside or outside of the aerosol generating article 20000 depending on the shape of the heating elements.

[0049] Furthermore, the aerosol generator 10000 may be equipped with multiple heaters 13000. In this case, the multiple heaters 13000 may be positioned to be inserted inside the aerosol generating article 20000, or to be positioned outside the aerosol generating article 20000. Also, some of the multiple heaters 13000 may be positioned to be inserted inside the aerosol generating article 20000, while the rest are positioned outside the aerosol generating article 20000. Moreover, the shape of the heater 13000 is not limited to the shapes shown in Figures 1 to 3, but can be manufactured in a variety of shapes.

[0050] The vaporizer 14000 heats the liquid composition to generate an aerosol, which can then be transmitted to the user through the aerosol generating article 20000. That is, the aerosol generated by the vaporizer 14000 moves along the airflow passage of the aerosol generator 10000, and the airflow passage may be configured so that the aerosol generated by the vaporizer 14000 passes through the aerosol generating article and is transmitted to the user.

[0051] For example, the vaporizer 14000 may include, but is not limited to, a liquid storage unit, a liquid transfer means, and a heating element. For instance, the liquid storage unit, the liquid transfer means, and the heating element may be included in the aerosol generator 10000 as independent modules.

[0052] The liquid storage section stores a liquid composition. For example, the liquid composition may be a liquid containing tobacco-containing substances, including volatile tobacco flavor components, or a liquid containing non-tobacco substances. The liquid storage section is manufactured to detach from / adhere to the vaporizer 14000, or it may be manufactured integrally with the vaporizer 14000.

[0053] For example, the liquid composition may contain water, solvent, ethanol, plant extracts, fragrances, flavorings, or vitamin mixtures. Fragrances may include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit fragrance components. Flavorings may include components that provide users with a variety of flavors or aromas. Vitamin mixtures may also include, but are not limited to, a mixture of at least one of vitamins A, B, C, and E. Furthermore, the liquid composition may contain aerosol-forming agents such as glycerin and propylene glycol.

[0054] The liquid transfer means can transfer the liquid composition of the liquid storage section to the heating element. For example, the liquid transfer means may be, but is not limited to, a wick such as cotton fibers, ceramic fibers, glass fibers, or porous ceramics.

[0055] A heating element is an element for heating a liquid composition that is transmitted by a liquid transfer means. For example, a heating element may be a metal heating wire, a metal heating plate, or a ceramic heater, but is not limited to these. Alternatively, a heating element may be composed of a conductive filament, such as a nichrome wire, and arranged in a structure that is wound around the liquid transfer means. The heating element is heated by an electric current supply, and heat is transferred to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, an aerosol may be generated.

[0056] For example, the steam generator 14000 is also called a cartomizer or atomizer, but is not limited to these terms.

[0057] On the other hand, the aerosol generator 10000 may further include general-purpose components in addition to the battery 11000, control unit 12000, heater 13000, and vaporizer 14000. For example, the aerosol generator 10000 may include a display capable of outputting visual information and / or a motor for outputting tactile information. The aerosol generator 10000 may also include at least one sensor (e.g., a puff detection sensor, a temperature detection sensor, an aerosol generating article insertion detection sensor, etc.). The aerosol generator 10000 may also be constructed in such a way that external air can flow in or internal gas can flow out even when the aerosol generating article 20000 is inserted.

[0058] Although not shown in Figures 1 to 3, the aerosol generator 10000 may be configured with a separate cradle. For example, the cradle may be used to charge the battery 11000 of the aerosol generator 10000. Alternatively, the heater 13000 may be heated when the cradle and the aerosol generator 10000 are coupled together.

[0059] The aerosol-generating article 20000 is similar to a typical burning cigarette. For example, the aerosol-generating article 20000 may be divided into a first part containing an aerosol-generating substance and a second part containing a filter, etc. Alternatively, the second part of the aerosol-generating article 20000 may also contain an aerosol-generating substance. For example, an aerosol-generating substance made in granular or encapsulated form may be inserted into the second part.

[0060] As an example, outside air may flow into the aerosol generator 10000 through at least one air passage formed in the aerosol generator 10000. For example, the opening and closing of the air passage formed in the aerosol generator 10000 and / or the size of the air passage may be adjusted by the user. This allows the amount of atomization, the smoking sensation, etc., to be adjusted by the user. As another example, outside air may also flow into the aerosol generating article 20000 through at least one hole formed on the surface of the aerosol generating article 20000.

[0061] Figure 4 is a diagram showing an example of an aerosol generator using an induction heating method.

[0062] Referring to Figure 4, the aerosol generator 10000 includes a battery 11000, a control unit 12000, a coil C, and a susceptor S. Furthermore, at least a portion of the aerosol generating article 20000 can be housed in the cavity V of the aerosol generator 10000. The aerosol generating article 20000, battery 11000, and control unit 12000 in Figure 4 may correspond to the aerosol generating article 20000, battery 11000, and control unit 12000 in Figures 1 to 3, respectively. Also, the coil C and susceptor S may be included in the heater 13000. Therefore, repeated explanations will be omitted below.

[0063] Figure 4 illustrates only the specific components of the aerosol generator 10000 as relating to this embodiment. Therefore, anyone with ordinary skill in the art will understand that the aerosol generator 10000 also includes other general-purpose components in addition to those shown in Figure 4.

[0064] Coil C may be located around cavity V. Figure 4 shows coil C surrounding cavity V, but the embodiment is not limited to this.

[0065] Once the aerosol generating article 20000 is placed in the cavity V of the aerosol generating device 10000, the aerosol generating device 10000 supplies power to coil C so that coil C generates a magnetic field. The magnetic field generated by coil C penetrates susceptor S, which may heat up susceptor S.

[0066] This type of induction heating is well known and can be explained by Faraday's Law of induction. Specifically, when the magnetic induction within a susceptor S changes, an electric field is generated within the susceptor S, causing eddy currents to flow within the susceptor S. These eddy currents generate heat within the susceptor S that is proportional to the current density and the conductor resistance.

[0067] The susceptor S is heated by eddy currents, and the aerosol-generating material in the aerosol-generating article 20000 is heated by the heated susceptor S, which can generate an aerosol. The aerosol generated from the aerosol-generating material passes through the aerosol-generating article 20000 and is transmitted to the user.

[0068] Battery 11000 can supply power to coil C so that it generates a magnetic field. Control unit 12000 can be electrically connected to coil C.

[0069] Coil C is also a conductive coil that generates a magnetic field using power supplied from battery 11000. Coil C may be positioned to surround at least a portion of the cavity V. The magnetic field generated by coil C may be applied to a susceptor S located in the cavity V.

[0070] The susceptor S is heated by the magnetic field generated from the coil C and may contain metal or carbon. For example, the susceptor S may contain at least one of ferrite, ferromagnetic alloy, stainless steel, and aluminum (Al).

[0071] The susceptor S may contain at least one of the following: ceramics (e.g., graphite, molybdenum, silicon carbide, niobium, nickel alloy, metal film, zirconia), transition metals (e.g., nickel (Ni) or cobalt (Co)), and metalloids (e.g., boron (B) or phosphorus (P)). However, the susceptor S is not limited to the examples given above and can be any substance that can be heated to a desired temperature. Here, the desired temperature may already be set in the aerosol generator 10000 or may be set by the user.

[0072] Once the aerosol-generating article 20000 is housed in the cavity V of the aerosol generator 10000, the susceptor S can be positioned to surround at least a portion of the aerosol-generating article 20000. Therefore, the heated susceptor S can raise the temperature of the aerosol-generating substance within the aerosol-generating article 20000.

[0073] Figure 4 shows that the susceptor S is positioned to surround at least a portion of the aerosol-generating article, but the shape and arrangement of the susceptor S are not limited thereto. For example, the susceptor S may include tubular heating elements, plate-shaped heating elements, needle-shaped heating elements, or rod-shaped heating elements, and the shape of the heating elements may heat the inside or outside of the aerosol-generating article 20000.

[0074] Furthermore, the aerosol generator 10000 may be equipped with multiple susceptors S. In this case, the multiple susceptors S may be positioned outside the aerosol generating article 20000, or positioned to be inserted into the aerosol generating article 20000. Alternatively, some of the multiple susceptors S may be positioned to be inserted into the aerosol generating article 20000, while the rest are positioned outside the aerosol generating article 20000. The shape of the susceptors S is not limited to the shape shown in Figure 4, and can be manufactured in a variety of shapes.

[0075] Figure 5 is a schematic diagram showing the structure of an aerosol-generating article 20000 according to one embodiment.

[0076] Referring to Figure 5, the aerosol-generating article 20000 comprises a first part 21000, a second part 22000, a third part 23000, and a fourth part 24000. Specifically, the first part 21000, the second part 22000, the third part 23000, and the fourth part 24000 each comprise an aerosol-generating element (i.e., an aerosol-generating substance), a tobacco element, a cooling element, and a filter element, respectively. For example, the first part 21000 comprises an aerosol-generating substance, the second part 22000 comprises a tobacco substance and a humectant, the third part 23000 cools the airflow passing through the first part 21000 and the second part 22000, and the fourth part 24000 comprises a filter material.

[0077] Referring to Figure 5, the first section 21000, the second section 22000, the third section 23000, and the fourth section 24000 can be sequentially aligned along the longitudinal direction of the aerosol generating article 20000. Here, the longitudinal direction of the aerosol generating article 20000 is also the direction in which the length of the aerosol generating article 20000 extends. For example, the longitudinal direction of the aerosol generating article 20000 is also the direction from the first section 21000 to the fourth section 24000. As a result, the aerosol generated from at least one of the first section 21000 and the second section 22000 passes sequentially through the first section 21000, the second section 22000, the third section 23000, and the fourth section 24000 to form an airflow, thereby allowing the smoker to inhale the aerosol from the fourth section 24000.

[0078] The first part 21000 comprises an aerosol-generating element. It also comprises other additives such as flavoring agents, humectants and / or organic acids, and may include a fragrance liquid such as menthol or a humectant. Here, the aerosol-generating element comprises, for example, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol. However, the present invention is not limited to the examples given above, and the first part 21000 may also comprise a variety of aerosol-generating elements widely known in the art.

[0079] Part 1 21000 includes a crimped sheet, and aerosol generating elements may be included in the crimped sheet. Other additives such as flavoring agents, humectants and / or organic acids and flavoring liquids may also be included in the crimped sheet.

[0080] A rolled sheet is also a sheet composed of polymer materials. For example, the polymer material may include at least one of the following: paper, cellulose acetate, lyocell, or polylactic acid. For example, a rolled sheet may also be a paper sheet that does not produce an unpleasant odor when heated to high temperatures. However, it is not limited to this.

[0081] The first part 21000 has a length of approximately 7 to 20 mm, and the second part 22000 has a length of approximately 7 to 20 mm. However, the lengths of the first part 21000 and the second part 22000 may vary depending on the embodiment, as the numerical range is not necessarily limited. The second part 22000 contains tobacco elements. Tobacco elements are also specific forms of tobacco substances. For example, tobacco elements may be in the form of shredded tobacco, tobacco particles, tobacco sheets, tobacco beads, tobacco granules, tobacco powder, or tobacco extracts. Tobacco substances may also include one or more of the following, for example, tobacco leaves, tobacco veins, puffed tobacco, cut shredded tobacco, flat leaf shredded tobacco, and reconstituted tobacco.

[0082] The third part 23000 can cool the airflow passing through the first part 21000 and the second part 22000. The third part 23000 can be made from a polymer or biodegradable polymer and may have a cooling function. For example, the third part 23000 can also be made from polylactic acid (PLA) fibers, but is not limited thereto. Alternatively, the third part 23000 can also be made from a cellulose acetate filter with multiple pores. However, the third part 23000 is not limited to the examples given above, and other materials capable of cooling aerosols can be used without limitation. For example, the third part 23000 can also be a hollow tube filter or a paper tube filter.

[0083] The fourth part 24000 contains a filter material. For example, the fourth part 24000 is also a cellulose acetate filter. There are no restrictions on the shape of the fourth part 24000. For example, the fourth part 24000 can be a cylindrical (type) rod, a tubular (type) rod containing a hollow interior, or a recessed (type) rod. If the fourth part 24000 is composed of multiple segments, at least one of the segments has a different shape.

[0084] The fourth section 24000 is also constructed to generate flavor. For example, a flavoring liquid may be sprayed onto the fourth section 24000. As another example, a separate fiber coated with a flavoring liquid may be inserted into the interior of the fourth section 24000.

[0085] The aerosol-generating article 20000 includes a first flaps 25000 that surrounds at least a portion of the first to fourth parts 21000 to 24000. The first flaps 25000 may be located on the outermost edge of the aerosol-generating article 20000. The first flaps 25000 may be a single flaps or a combination of multiple flaps.

[0086] Furthermore, the aerosol-generating article 20000 further includes a second trumpet 26000 which encloses the outer casing of the first trumpet 25000. That is, at least a portion of the aerosol-generating article 20000 may be double-packaged by the first trumpet 25000 and the second trumpet 26000. For example, the second trumpet 26000 can package at least a portion of the third portion 23000 and the fourth portion 24000 which are packaged by the first trumpet 25000.

[0087] For example, the first part 21000 of the aerosol-generating article 20000 includes a crumpled, wrinkled sheet containing an aerosol-generating substance, the second part 22000 includes flat-leaf tobacco as a tobacco substance and glycerin as a humectant, the third part 23000 includes a tube, and the fourth part 24000 includes cellulose acetate (CA) fibers, but the present invention is not necessarily limited thereto.

[0088] Figure 6A is a schematic diagram showing the configuration of an aerosol generating article 100 according to one embodiment, and Figure 6B is a schematic diagram showing the configuration of an aerosol generating article 100 according to another embodiment.

[0089] Referring to Figures 6A and 6B, the aerosol generating article 100 includes a first part 110 containing an aerosol generating element, a second part 120 containing a tobacco element, a third part 130 containing a cooling element, and a fourth part 140 containing a filter element. The first part 110, the second part 120, the third part 130, and the fourth part 140 are sequentially aligned along the longitudinal direction of the aerosol generating article 100. The matters described above in Figure 5 can be applied equally to the first part 110, the second part 120, the third part 130, and the fourth part 140.

[0090] The first part 110 of the aerosol-generating article 100 will be described in more detail below.

[0091] The first part 110 includes a plurality of rolled paper pieces 111 as an aerosol-generating element absorber containing an aerosol-generating element. The plurality of rolled paper pieces 111 may be arranged randomly within the first part 110 as shown in Figure 6A, or they may be aligned in a certain direction within the first part 110 as shown in Figure 6B.

[0092] Multiple crimped paper strips 111 are obtained by cutting a crimped paper sheet impregnated with the aerosol-generating element described in Figure 5 into thin strips. Multiple paper strips 111 contain a larger amount of aerosol-generating element compared to the case containing a single paper sheet. Furthermore, because the multiple crimped paper strips 111 are scattered within the first section 110, when the user inhales, the airflow within the first section 110 is dispersed in multiple directions, generating aerosols throughout the entire first section 110. As a result, a larger amount of aerosol generation can be provided to the user.

[0093] Furthermore, since the area of ​​the individual aerosol generating element absorbers is reduced compared to a single sheet of paper, the multiple rolled paper pieces 111 can respond more sensitively to the heat supplied by the heating element of the aerosol generator. Therefore, the first part 110, which includes multiple rolled paper pieces 111, reaches the target temperature more quickly than the first part 110, which includes a single sheet of paper, and can uniformly supply a large amount of aerosol to the user even in the initial stages of smoking.

[0094] Furthermore, since an even larger amount of absorbent material can be densely packed into the first part 110, the roundness and hardness of the first part 110 can be improved, thereby enhancing user convenience.

[0095] Roundness refers to the degree to which the cross-section of the first part 110 is perfectly circular, and can be measured by known techniques. For example, the radius error can be determined by measuring the radius using a comparator while rotating the first part 110, and observing the movement of the measuring probe.

[0096] Hardness is a physical property relating to the elasticity and resilience of the first part 110, and means the degree to which the first part 110 resists pressure applied perpendicular to the longitudinal direction. For the user to easily use the aerosol generating article, a specific level of hardness is required so that the aerosol generating article can maintain its shape.

[0097] The shape and size of the multiple rolled paper pieces 111 are not limited. For example, the multiple rolled paper pieces 111 may have an average length of 5 to 15 mm with respect to one direction. For example, the multiple rolled paper pieces 111 may be rectangular, with the longer side of the rectangle having an average length of 5 to 15 mm. Having the multiple rolled paper pieces 111 in the above range of average length allows the airflow generated within the first section 110 to be properly dispersed, thereby improving aerosol generation. On the other hand, if the multiple rolled paper pieces 111 have an excessively long average length, the initial temperature rise of the first section 110 will be slow, resulting in a decrease in initial aerosol generation. To improve aerosol generation, the multiple rolled paper pieces 111 may have an average length of 7 to 14 mm, more preferably 8 to 13 mm, with respect to one direction.

[0098] The thickness of the paper piece 111 affects the roundness and hardness of the first part 110. In this case, the paper piece 111 has a thickness of 100 to 300 μm to improve the roundness and hardness. To improve the roundness and hardness of the first part 110, the paper piece 111 has a thickness of 120 to 250 μm, and more preferably, a thickness of 130 to 240 μm.

[0099] Furthermore, paper fragment 111 weighs 20-100 g / m². 2 The paper has a basis weight of 40-80 g / m². If the basis weight of the paper piece 111 is less than the above range, the amount of aerosol generating element impregnated into the paper piece 111 decreases, which can reduce the amount of aerosol generated. Conversely, if it exceeds the above range, the temperature rise due to the heating element is slow, making it difficult to supply a large amount of aerosol at the beginning of smoking. In order to maintain the amount of aerosol generated and to supply a uniform aerosol throughout the duration of smoking, the paper piece 111 preferably has a basis weight of 40-80 g / m². 2 Having a basis weight of 55-65 g / m², and more preferably 55-65 g / m². 2 It can have a basis weight of [a certain amount].

[0100] The weight of the multiple crimped paper strips 111 contained in the first part 110 is 5 to 30 mg / mm based on the length of the first part 110. The weight of the multiple crimped paper strips 111 contained in the first part 110 affects the amount of aerosol generated and the suction resistance. In terms of providing a rich amount of aerosol and preventing an excessive increase in suction resistance, the multiple crimped paper strips 111 may be contained at a rate of 10 to 20 mg / mm, and more preferably 12 to 18 mg / mm, based on the length of the first part 110.

[0101] The aerosol generating element contains 70-99% by weight of glycerin and 1-30% by weight of propylene glycol, relative to the total weight of the aerosol generating element.

[0102] Generally, aerosol generating elements contain additional additives or moisture to increase the amount of aerosol generating elements absorbed by the absorber. However, the example, by including paper pieces 111, has a larger surface area compared to the case of including a single sheet of paper, and therefore can maintain a high absorption rate even without including additional moisture or additives.

[0103] In other examples, the aerosol generating element contains 99% by weight or more of glycerin, and more preferably 99.9% by weight or more of glycerin.

[0104] The aerosol-generating elements glycerin and propylene glycol affect the amount of aerosol generated and nicotine transferred. Propylene glycol has a viscosity of 0.042 Pa / s and a boiling point of 188°C, while glycerin has a viscosity of 1.412 Pa / s and a boiling point of 290°C. As the amount of propylene glycol, which has a relatively low viscosity and boiling point, increases, the rate of temperature rise due to heating increases, and the amount of aerosol generated in the initial stages of smoking tends to increase. On the other hand, if the glycerin content increases, the rate of temperature rise due to heating is slower, so the amount of aerosol generated in the initial stages of smoking may decrease. However, the high viscosity and boiling point increase the amount of nicotine transferred, which may improve the taste.

[0105] As mentioned above, the aerosol generating article relating to the example has a small surface area for the individual aerosol generating element absorber, allowing its temperature to rise rapidly upon heating. Therefore, even with a small amount of propylene glycol contained in the aerosol generating element, a high rate of temperature rise can be maintained, and a large amount of aerosol can be provided even in the initial stages of smoking.

[0106] If the weight of the aerosol-generating elements contained in the aerosol-generating article is between 3 mg / mm and 10 mg / mm based on the length of the aerosol-generating article, a large amount of aerosol can be generated and nicotine can be sufficiently transmitted. If the amount of aerosol-generating elements is less than the above range, the amount of aerosol generated or nicotine transmitted may decrease significantly. If the amount of aerosol-generating elements exceeds the above range, leakage of the aerosol-generating elements may occur. In the example, the hardness of the horizontal cross-section of the first part 110 (i.e., the cross-section cut perpendicular to the longitudinal direction of the aerosol-generating article) is 90% or more, and the roundness is also 90% or more. When a single paper sheet is used as the absorbent, increasing the absorbent filling rate of the first part 110 above a certain level improves the hardness, but decreases the roundness. On the other hand, in the example, since multiple small pieces of paper 111 are packed together, excellent roundness can be maintained even when the absorbent filling rate is increased compared to when a single paper sheet is used as the absorbent.

[0107] Figure 7 is a diagram showing the case where the aerosol generating article 100 shown in Figure 6A is inserted into the aerosol generating device 10 according to one embodiment.

[0108] Referring to Figure 7, the aerosol generating system includes an aerosol generating device 10 and an aerosol generating article 100. The aerosol generating device 10 includes a housing space 12 for housing the aerosol generating article 100, a heating element 11 for heating the aerosol generating article 400, and a battery (not shown) for supplying power to the heating element 11. The aerosol generating article 100 is consistent with the embodiment described above. The heating element 11 has a cylindrical shape that surrounds the housing space 12. When the aerosol generating article 100 is inserted into the aerosol generating device 10, the heating element 11 can heat at least a portion of the first portion 110 and at least a portion of the second portion 120 of the aerosol generating article 100.

[0109] The aerosol generator 10 further includes a control unit (not shown). The control unit can control the temperature at which the heating element 11 heats the aerosol generating article 100 according to a pre-entered temperature profile.

[0110] When the heating element 11 is activated, the aerosol generating element contained in the first part 110 and the tobacco element contained in the second part 120 may be heated. The generated aerosol flows through the third part 130 and the fourth part 140 toward the outside of the aerosol generating article 100.

[0111] Example 1. Production of an aerosol-generating article containing multiple paper fragments (100% by weight of glycerin) An aerosol-generating article identical in form to the example shown in Figure 6A was manufactured. After crimping (creating cuts) a base paper having the physical properties shown in Table 1 below, it was cut into squares with sides of approximately 15 mm and impregnated with an aerosol-generating element. The aerosol-generating article was manufactured so that the first section was filled with paper fragments of 15 mg / mm based on the length of the first section. [Table 1]

[0112] The aerosol generating element used contained 100% by weight of glycerin based on the total weight of the aerosol generating element, and 4 mg / mm was used based on the longitudinal direction of the aerosol generating article.

[0113] Example 2. Production of an aerosol-generating article containing multiple paper fragments (90% by weight glycerin, 10% by weight propylene glycol) An aerosol generating article was manufactured in the same manner as in Example 1, except that an aerosol generating element containing 90% by weight of glycerin and 10% by weight of propylene glycol, based on the total weight of the aerosol generating element, was used.

[0114] Example 3. Manufacture of an aerosol-generating article containing multiple paper fragments (80% by weight glycerin, 20% by weight propylene glycol) An aerosol generating article was manufactured in the same manner as in Example 1, except that an aerosol generating element containing 80% by weight of glycerin and 20% by weight of propylene glycol based on the total weight of the aerosol generating element was used.

[0115] Example 4. Manufacture of an aerosol-generating article containing multiple paper fragments (70% by weight glycerin, 30% by weight propylene glycol) An aerosol generating article was manufactured in the same manner as in Example 1, except that an aerosol generating element containing 70% by weight of glycerin and 30% by weight of propylene glycol, based on the total weight of the aerosol generating element, was used.

[0116] Comparative example: Manufacturing of an aerosol-generating article containing a single base paper. The aerosol-generating article was manufactured in the same manner as in Example 1, except that the base paper shown in Table 1 was used without being cut. A base paper measuring 150 mm x 100 mm was rolled up and placed in the first section. The base paper contained 15 mg / mm based on the length of the first section, as in Example 1.

[0117] Experimental Example 1: Comparative experiment of temperature and aerosol generation in the first section. The aerosol-generating articles of Example 1 and the Comparative Example were placed in an externally heated aerosol-generating article and heated to a target temperature of 250°C. The temperature of the first portion of each aerosol-generating article was measured and compared over time. Figure 8 is a graph showing the temperature change over time of the first portion of the aerosol-generating articles of Example 1 and the Comparative Example.

[0118] Referring to Figure 8, the temperature of the first portion of the aerosol-generating article in Example 1 rose faster than that of the first portion of the aerosol-generating article in the comparative example, and the target temperature was uniformly maintained within the measurement time.

[0119] Furthermore, aerosols generated during 8 puffs were collected, and the components of the collected aerosols were analyzed. Table 2 below shows the results of the component analysis of the collected aerosols. [Table 2]

[0120] As shown in Table 2, the aerosol generated by the aerosol generating article of Example 1 contains more glycerin than the aerosol generated by the aerosol generating article of the comparative example. Therefore, it was confirmed that the aerosol generating article containing multiple rolled paper pieces in the first part uniformly provides a more abundant amount of aerosol throughout the smoking period compared to the aerosol generating article containing a single paper sheet in the first part.

[0121] Experimental Example 2. Measurement of Roundness and Hardness The roundness and hardness of the first portion of the aerosol-generating articles of Example 1 and the Comparative Example were measured, and the results are shown in Table 3 below. [Table 3]

[0122] As shown in Table 3, it was confirmed that the aerosol-generating article of Example 1 had even higher roundness and hardness compared to the aerosol-generating article of the comparative example.

[0123] Experimental Example 3. Analysis of Nicotine Transfer Based on Aerosol Generating Element Composition and Content To analyze the amount of nicotine transferred based on the composition of the aerosol generating elements, the aerosol generating articles of Examples 1 to 4 were placed in an externally heated aerosol generator. The aerosols generated during 8 puffs were then collected, and the components of the collected aerosols were analyzed. Table 4 below shows the results of the component analysis of the collected aerosols. [Table 4]

[0124] As shown in Table 4, it was confirmed that the amount of nicotine transferred increases as the amount of glycerin contained in the aerosol generating element increases. Since the user's smoking sensation improves as the amount of nicotine transferred increases, it was confirmed that increasing the amount of glycerin contained in the aerosol generating element introduced in the example improves the smoking sensation.

[0125] Furthermore, in order to analyze the amount of nicotine transferred based on the content of the aerosol generating element, aerosol generating articles were manufactured by changing the content of the aerosol generating element. The aerosol generating articles were manufactured in the same manner as in Example 1, except that they contained either 6 mg / mm or 8 mg / mm of the aerosol generating element based on the length of the aerosol generating article. After the manufactured aerosol generating articles were placed in an externally heated aerosol generator, the aerosol generated during 8 puffs was collected, and the nicotine content of the collected aerosol was analyzed. Table 5 below shows the results of the nicotine content analysis of the collected aerosol. [Table 5]

[0126] As shown in Table 5, we confirmed that there was no significant change in the amount of nicotine transferred even when the content of the aerosol generating element increased. On the other hand, we confirmed that when the aerosol generating element was contained at 8 mg / mm based on the length of the aerosol generating article, the addition of an excessive amount of the aerosol generating element caused leakage to the outside of the first portion.

[0127] Those with ordinary skill in the art relating to this embodiment will understand that it can be embodied in modified forms that do not deviate from the essential characteristics described above. Therefore, the disclosed method should be considered in an explanatory rather than restrictive view. The scope of the invention is shown in the claims, not in the foregoing description, and all differences within an equivalent scope should be construed as being included in the invention.

Claims

1. In aerosol-generating articles, A first part comprising multiple rolled paper pieces impregnated with an aerosol generating element, The second part contains tobacco elements, A third part including a cooling element, A fourth part containing a filter element, and including, The first part, the second part, the third part, and the fourth part are arranged sequentially along the longitudinal direction of the aerosol generating article. Some of the aforementioned rolled paper pieces are arranged along the longitudinal direction of the aerosol generating article. The aerosol generating element contains 99% by weight or more of glycerin relative to the total weight of the aerosol generating element. The aerosol generating article contains the aerosol generating element at a concentration of 4 to 8 mg / mm based on the length of the aerosol generating article. Aerosol-generating articles.

2. The aerosol generating article according to claim 1, wherein the plurality of rolled paper pieces are arranged in alignment along the longitudinal direction of the aerosol generating article.

3. The aerosol generating article according to claim 1, wherein the plurality of rolled paper pieces have an average length of 5 to 15 mm with respect to one direction.

4. The aerosol generating article according to claim 1, wherein the paper piece has a thickness of 100 to 300 μm.

5. The aerosol generating article according to claim 1, wherein the paper piece has a basis weight of 20 to 100 g / m2.

6. The aerosol generating article according to claim 1, wherein the first portion contains 5 to 30 mg / mm of the plurality of rolled paper pieces based on the length of the first portion.

7. The aerosol generating article according to claim 1, wherein the hardness of the horizontal cross-section of the first portion is 90% or more and the roundness is 90% or more.

8. The aerosol generating article according to claim 1, Aerosol generating system, comprising: an aerosol generating device, which includes a housing space configured to house the aerosol generating article; a heating element configured to heat the aerosol generating article; and a battery configured to supply power to the heating element.

9. The aerosol generating system according to claim 8, wherein the heating element is arranged to surround the containment space.

10. The aerosol generating system according to claim 8, wherein the aerosol generating device heats at least a portion of the first portion and at least a portion of the second portion.

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