Composite structure and smoking article containing same

Abstract

A composite material structure comprises a base material, a plastic layer, an optional first fragrance layer and an optional second fragrance layer. The substrate has a first side and a second side opposite the first side. The plastic layer is on the first side of the substrate. The plastic layer comprises a biodegradable plastic, and the plastic layer optionally contains a glue layer flavoring agent. The first fragrance layer is located between the base material and the plastic layer, and a first fragrance agent is arranged in the first fragrance layer. The second fragrance layer is located on the second side of the base material, and a second fragrance agent is arranged in the second fragrance layer. When the plastic layer does not contain the adhesive layer flavoring agent and the first fragrant layer is not arranged between the base material and the plastic layer, the composite material structure needs to be provided with the second fragrant layer.

Description

Technical Field

[0001] This utility model relates to a composite material structure and a smoking product containing the composite material structure. Background Technology

[0002] As consumers demand a higher level of product experience, materials with fragrance properties are gaining increasing importance. For example, scented materials (such as fragranced paper) are used in the packaging of food, cosmetics, and gifts to give the products additional characteristics and style. Utility Model Content

[0003] However, the creators discovered that the fragrance of scented materials, which are formed by directly coating the base material with fragrance, decays rapidly, resulting in a short-lived scent. In addition, because the fragrance of this type of scented material decays so quickly, the initial scent is too strong, but it almost disappears soon after, resulting in an uneven intensity of fragrance.

[0004] In response, this application provides a composite material structure comprising a substrate, a plastic layer, an optional first fragrance layer, and an optional second fragrance layer. The substrate has a first side and a second side opposite to the first side. The plastic layer is located on the first side of the substrate. The plastic layer comprises a biodegradable plastic and optionally contains an adhesive fragrance agent. The first fragrance layer is located between the substrate and the plastic layer and contains the first fragrance agent. The second fragrance layer is located on the second side of the substrate and contains the second fragrance agent. When the plastic layer does not contain the adhesive fragrance agent and there is no first fragrance layer between the substrate and the plastic layer, the composite material structure must have a second fragrance layer.

[0005] By utilizing the aforementioned features, the composite material structure of this invention can reduce the rate of fragrance decay, thereby achieving a longer fragrance duration. Specifically, in some embodiments, the composite material structure of this invention has a plastic layer containing a fragrance adhesive. Since the fragrance adhesive is dispersed within the plastic layer, its fragrance release rate is effectively reduced compared to the case where an equal amount of fragrance is directly applied to the substrate and diffuses directly over a large area or indirectly diffuses through the substrate to the outside, thus extending the fragrance duration of the composite material structure. Alternatively, in some embodiments, a first fragrance layer is present between the substrate and the plastic layer. Since the first fragrance layer is sandwiched between the substrate and the plastic layer, its release is blocked by the plastic layer, thereby reducing the fragrance release rate. Alternatively, in some embodiments, since a second fragrance layer is present on the second side of the substrate, and a plastic layer is present on the first side of the substrate opposite to the second side, this structure reduces the amount of fragrance from the second fragrance layer that diffuses through the substrate from the first side compared to the case without a plastic layer.

[0006] For the reasons mentioned above, the composite material structure of this invention can reduce the rate of fragrance decay, thus resulting in a longer fragrance duration. Furthermore, because the fragrance decay rate of the composite material structure of this invention is relatively slow, it can maintain a relatively stable and uniform fragrance throughout the entire fragrance period.

[0007] Furthermore, the composite material structure of this invention also has the effect of "further gradual release of fragrance under certain conditions." When the composite material structure of this invention is applied to products that are subject to heat (such as cigarette paper), if the composite material structure has a plastic layer containing a fragrance agent, the plastic layer will soften and melt upon heating, thus gradually releasing the fragrance agent, thereby allowing the composite material structure to further gradually release fragrance. If there is a first fragrance layer between the substrate and the plastic layer of the composite material structure, the fragrance of the first fragrance layer, which was originally blocked, will gradually be released as the plastic layer softens and melts upon heating, achieving the aforementioned effect of "further gradual release of fragrance." If there is a second fragrance layer on the second side of the substrate, the amount of fragrance emitted from the second fragrance layer from the second side to the first side will gradually increase as the plastic layer on the first side relative to the second side softens and melts upon heating, thus allowing the composite material structure to achieve the aforementioned effect of "further gradual release of fragrance."

[0008] Therefore, this case also provides a smoking article comprising the composite material structure as described above.

[0009] In some embodiments, the smoking article is a cigarette having a cigarette body and a filter plug disposed at one end of the cigarette body. The filter plug includes filter material and a filter roll paper covering the filter material. Wherein, (1) the filter material includes a composite material structure as described above, or (2) the filter roll paper includes a composite material structure as described above, and the plastic layer of the composite material structure faces the interior of the cigarette.

[0010] In some embodiments, the smoking product is a heated-not-burn (HNB) cigarette, which sequentially includes a filter section, a cooling section, a tobacco material section, and an optional plug section from one end to the other. Each section has a molding material, and the filter section and the plug section each have filter material disposed within the space formed by the molding material, while the cooling section may optionally have another filter material disposed within the space formed by the molding material of the cooling section. Wherein, (1) the filter material of the filter section, the filter material of the plug section, or the other filter material of the cooling section, at least one of which includes the aforementioned composite material structure, or (2) at least one of the filter section, the cooling section, the tobacco material section, and the plug section, the molding material of which includes the composite material structure as described above, and the plastic layer of the composite material structure faces the interior of the heated-not-burn cigarette.

[0011] On the other hand, because the plastic layer in the composite material structure of this case contains biodegradable plastics, which have good degradability and can decompose into environmentally acceptable substances such as carbon dioxide, water, and biomass under specific environmental conditions, the composite material structure of this case and the products using the composite material structure have a lower environmental impact and are environmentally friendly. Attached Figure Description

[0012] Figure 1 This is a schematic cross-sectional view of an embodiment of the composite material structure in this case.

[0013] Figure 2 This is a cross-sectional schematic diagram drawn according to another embodiment of the composite material structure in this case.

[0014] Figure 3 This is a cross-sectional schematic diagram drawn according to another embodiment of the composite material structure in this case.

[0015] Figure 4 This is a cross-sectional schematic diagram drawn according to another embodiment of the composite material structure in this case.

[0016] Figure 5 This is a flowchart illustrating an embodiment of the method for preparing the composite material structure according to this case.

[0017] Figure 6 This is a three-dimensional schematic diagram drawn according to an embodiment of the smoking product in this case.

[0018] Figure 7 This is a three-dimensional schematic diagram drawn according to an embodiment of the smoking product in this case.

[0019] Figure 8 This is a schematic cross-sectional view of the cooling section drawn according to an embodiment of the smoking product in this case.

[0020] Figure 9 This is a schematic cross-sectional view of the cooling section drawn according to an embodiment of the smoking product in this case.

[0021] Among them, the attached figures are labeled

[0022] 100: Composite material structure

[0023] 110: Substrate

[0024] 111: First side

[0025] 112: Second side

[0026] 120: Plastic layer

[0027] 121: Fragrance agent for adhesive layer

[0028] 130: First fragrance layer

[0029] 140: Second fragrance layer

[0030] 200: Smoking products

[0031] 210: Cigarettes

[0032] 211: Cigarette body

[0033] 212: Filter plug

[0034] 213: Receiving paper

[0035] 212a: Filter paper roll

[0036] 212b: Filter media

[0037] 220: Heated Tobacco Products

[0038] 220a: Molding material

[0039] 220b: Filter media

[0040] 221: Filter tip section

[0041] 222: Cooling Section

[0042] 2221: Spacing sheet

[0043] 223: Tobacco Materials Section

[0044] 224: End-of-section

[0045] S01, S02, S03: Steps Detailed Implementation

[0046] The following description provides specific examples of the components and their arrangement to simplify the explanation of this invention. It is understood that these embodiments are not intended to limit the invention. For example, if the specification discloses that a first component is formed on or above a second component, it may include embodiments where the first and second components are in direct contact, or embodiments where other additional components are formed between the first and second components, thus preventing direct contact between them.

[0047] The directional terms used in this document, such as "below," "lower," "above," "above," "higher," and similar terms, are spatially related terms used to facilitate the description of the relationship between components in the accompanying drawings. These spatially related terms include different orientations of the device in use or operation, as well as the orientations described in the accompanying drawings. When the device is turned to a different orientation, the spatially related adjectives used will also be interpreted according to the orientation after the turn.

[0048] Unless otherwise specified, the terms "contains" and "includes" used in this article are open-ended terms and should be interpreted as "containing but not limited to...".

[0049] In this document, unless otherwise indicated, the term "or" is used to refer to a non-exclusive "or", such that "A or B" includes "A but not B (or A exists but B does not exist)", "B but not A (or B exists but A does not exist)" and "A and B (both A and B exist)".

[0050] In this document, the phrase "from one value to another" is a summary representation to avoid listing all values ​​within that range in the specification. Therefore, unless otherwise specified or clearly contrary to reasonable common knowledge in the art to which this invention pertains, a specific range of values ​​described in this specification is equivalent to disclosing any value within that range and the smaller range of values ​​defined by that value (including its significant digits and the next significant digit), as if the arbitrary value and the smaller range were explicitly stated in the specification. For example, when the specification states "1 to 10," it is equivalent to disclosing the ranges of "3 to 5" and "2.5 to 6.8," regardless of whether other values ​​are listed in the specification.

[0051] In this specification, the terms "first," "second," etc., are used as adjectives and are used only to distinguish the nouns they modify from one another, not to describe any specific relationship between the nouns. Therefore, it should be understood that the use of terms such as "first fragrance agent" and "second fragrance agent" does not imply any specific order, type, hierarchy, or ranking between the two, nor does its use imply that the existence of "second fragrance agent" necessarily requires the existence of "first fragrance agent."

[0052] Please refer to the following first. Figure 1 , Figure 2 , Figure 3 and Figure 4 . Figure 1 , Figure 2 , Figure 3 and Figure 4 These are schematic cross-sectional views of different embodiments of the composite material structure 100 of this invention. The composite material structure 100 of this invention includes a substrate 110, a plastic layer 120, and an optional first fragrance layer 130 (see reference). Figure 1 or Figure 3 ) and an optional second fragrance layer 140 (see reference) Figure 4The substrate 110 has a first side 111 and a second side 112 opposite to the first side 111. A plastic layer 120 is located on the first side 111 of the substrate 110. The plastic layer 120 comprises a biodegradable plastic, and optionally contains an adhesive fragrance 121 (see [reference needed]). Figure 2 or Figure 3 The first fragrance layer 130 is located between the substrate 110 and the plastic layer 120, and the first fragrance layer 130 contains a first fragrance agent (not shown in the figure). The second fragrance layer 140 is located on the second side 112 of the substrate 110, and the second fragrance layer 140 contains a second fragrance agent (not shown in the figure). When the plastic layer 120 does not contain the adhesive fragrance agent 121 and there is no first fragrance layer 130 between the substrate 110 and the plastic layer 120, the composite material structure 100 must have a second fragrance layer 140.

[0053] Specific embodiments of the composite material structure 100 in this case can be listed as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the following will explain each state.

[0054] Please refer to this first. Figure 1 In this embodiment, a first fragrance layer 130 is provided on the first side 111 of the substrate 110, and a plastic layer 120 is provided on the first fragrance layer 130. The plastic layer 120 does not contain an adhesive fragrance agent 121. A second fragrance layer 140 is not provided on the second side 112 of the substrate 110. In other words, on... Figure 1 In the embodiment shown, only the first fragrance layer 130 of the composite material structure 100 has a fragrance.

[0055] Since the first fragrance layer 130 is located between the substrate 110 and the plastic layer 120, compared to the case without the plastic layer 120, the fragrance of the first fragrance layer 130 is blocked by the plastic layer 120 during release, thereby reducing the release rate of the fragrance from the composite material structure 100. Accordingly, the decay rate of the fragrance in the composite material structure 100 can be reduced, thus giving the fragrance of the composite material structure 100 a longer duration. Also, because the decay rate of the fragrance is relatively slow, the problem of "an initially overly strong fragrance that soon almost disappears" does not occur during the overall period during which the composite material structure 100 is fragrant. In other words, the composite material structure 100 can maintain a relatively stable and uniform fragrance throughout its entire fragrant period.

[0056] Please refer to the following: Figure 2In this embodiment, the first side 111 of the substrate 110 also has a plastic layer 120, but there is no first fragrance layer 130 between the substrate 110 and the plastic layer 120. Furthermore, the plastic layer 120 contains an adhesive fragrance agent 121, and the second side 112 of the substrate 110 does not have a second fragrance layer 140. In other words, on... Figure 2 In the illustrated embodiment, only the plastic layer 120 of the composite material structure 100 has a fragrance. Since the fragrance agent 121 is dispersed in the plastic layer 120, compared to the case where an equal amount of fragrance agent 121 is directly applied to the substrate 110 and diffuses directly over a large area or indirectly diffuses through the substrate 110 to the outside, the fragrance release rate of this composite material structure 100 can be effectively reduced, thereby prolonging the fragrance duration of the composite material structure 100.

[0057] Please refer to the following: Figure 3 In this embodiment, a first fragrance layer 130 is provided on the first side 111 of the substrate 110, and a plastic layer 120 is provided on the first fragrance layer 130. The plastic layer 120 contains an adhesive fragrance agent 121. A second fragrance layer 140 is not provided on the second side 112 of the substrate 110. Therefore, in… Figure 3 In the illustrated embodiment, the composite material structure 100 has a fragrance in addition to the first fragrance layer 130, and also includes a plastic layer 120. Since this sample simultaneously has the first fragrance layer 130 and the plastic layer 120 containing the fragrance agent 121, this sample can simultaneously have the effects of the aforementioned two samples.

[0058] Please refer to the following: Figure 4 In this embodiment, a plastic layer 120 is provided on the first side 111 of the substrate 110. The plastic layer 120 does not contain an adhesive fragrance agent 121, and there is no first fragrance layer 130 between the substrate 110 and the plastic layer 120. A second fragrance layer 140 is provided on the second side 112 of the substrate 110. In other words, on... Figure 4 In the illustrated embodiment, only the second fragrance layer 140 in the composite material structure 100 has a fragrance. Since the second fragrance layer 140 is on the second side 112 of the substrate 110, and a plastic layer 120 is on the first side 111 of the substrate 110 opposite to the second side 112, this structure reduces the amount of fragrance from the second fragrance layer 140 that escapes through the substrate 110 from the first side 111 of the substrate 110 compared to the case where the plastic layer 120 is not provided.

[0059] In summary, the composite material structure 100 of this invention can reduce the rate of fragrance decay, thereby providing a longer fragrance duration. Furthermore, because the fragrance decay rate of the composite material structure 100 is relatively slow, it can maintain a relatively stable and uniform fragrance throughout the entire fragrance period.

[0060] Furthermore, the composite material structure 100 of this invention also has the effect of "further and gradually releasing fragrance under certain conditions". When the composite material structure 100 of this invention is applied to products that are subject to heat (such as cigarette paper), if the composite material structure 100 has a plastic layer 120 containing a fragrance agent 121, the plastic layer 120 will soften and melt as it is heated, and thus the plastic layer 120 can gradually release the fragrance agent 121, thereby allowing the composite material structure 100 to further and gradually release fragrance. If there is a first fragrance layer 130 between the substrate 110 and the plastic layer 120 of the composite material structure 100, as the plastic layer 120 gradually softens and melts as it is heated, the fragrance of the first fragrance layer 130, which was originally blocked, can also be gradually released, achieving the aforementioned effect of "further and gradually releasing fragrance". If the second fragrance layer 140 is provided on the second side 112 of the substrate 110, the amount of fragrance emitted from the second fragrance layer 140 from the second side 112 to the first side 111 will gradually increase as the plastic layer 120 on the first side 111 relative to the second side 112 will gradually soften and melt when heated, thereby giving the composite material structure 100 the aforementioned effect of "further gradually releasing fragrance".

[0061] To make the structure of the composite material structure 100 in this case clearer, the following will provide further explanation of each component in the composite material structure 100.

[0062] [Substrate 110]

[0063] The present invention does not limit the material of the substrate 110, provided that a plastic layer 120 can be formed on the substrate 110 and the substrate 110 has the desired gas permeability in actual use of the composite material structure 100. In some embodiments, the substrate 110 in the composite material structure 100 may comprise natural or synthetic fibers. For example, it may comprise wood fibers, flax fibers, carbon fibers, aramid fibers, silicon carbide fibers, alumina fibers, boron fibers, tungsten carbide fibers, polyester fibers, and glass fibers. The substrate 110 may be a sheet material made of these materials, such as paper, wood chips, non-woven fabric, etc.

[0064] In some embodiments, the substrate 110 may be nonporous paper, depending on actual needs. In some embodiments, the air permeability of the substrate 110 may be increased by, for example, perforating the substrate 110 (e.g., by mechanical or laser perforation), controlling the fiber length during the papermaking process, or adding porous fillers to the pulp. For example, in some embodiments, the substrate 110 may be a highly permeable paper (air permeability greater than 2000 CU, preferably greater than 3000 CU). CU (Coresta Units) is defined as the number of milliliters of air passing through 1 square centimeter of the test paper per minute at a pressure of 1 kPa. The measurement method can refer to GB / T23227-2008.

[0065] It is worth noting that in some embodiments, the composite material structure 100 has a second fragrance layer 140 on the second side 112 of the substrate 110. When the composite material structure 100 is not heated, it needs to reduce the emission of the fragrance from the second side 112 of the second fragrance layer 140 to the first side 111 of the substrate 110. However, after heating, it needs to be carried out from the second side 112 of the second fragrance layer 140 to the first side 111 of the substrate 110 by airflow. In this embodiment (especially when only the second fragrance layer 140 in the composite material structure 100 has fragrance), using highly breathable paper as the substrate 110 can help allow the subsequent airflow to carry the fragrance of the second fragrance layer 140 from the second side 112 of the substrate 110 to the first side 111, resulting in a better aroma performance of this type of composite material structure 100 after heating.

[0066] [Plastic layer 120]

[0067] Plastic layer 120 contains biodegradable plastic. Biodegradable plastic is plastic that can be broken down into water, carbon dioxide, and / or methane by living organisms (usually microorganisms). In some embodiments, the biodegradable plastic may be polylactic acid (PLA), poly(butylene adipate-co-terephthalate) copolymer (PBAT), polybutylene succinate (PBS), polypropylene carbonate (PPC), polyhydroxyalkanoates (PHA), polycaprolactone (PCL), polyvinyl alcohol (PVA), polyglycolic acid (PGA), polyglycerol sebacate (PGS), polyhydroxybutyrate (PHB), or copolymers or mixtures formed from the above polymer monomers, but is not limited thereto.

[0068] In some embodiments, the plastic layer 120 may contain an adhesive fragrance 121 (such as...). Figure 2 , Figure 3 As shown), this imparts a fragrance to the plastic layer 120. In some embodiments, the weight of the adhesive layer fragrance agent 121 accounts for 0.05% to 10% of the total weight of the plastic layer 120, preferably 0.5% to 5.0%. The fragrance components in the adhesive layer fragrance agent 121 will be described later along with the first fragrance agent and the second fragrance agent.

[0069] In some embodiments, the plastic layer 120 may contain other additives to adjust its properties without causing the properties of the plastic layer 120 to fall below the required level. For example, it may contain antioxidants, plasticizers, heat stabilizers, weather stabilizers, lubricants (e.g., paraffin wax, white oil, stearic acid, stearates), ultraviolet absorbers, organic smoothing agents, pigments, dyes, fillers, antistatic agents, etc. Examples of plasticizers include glycerol, citrate esters, propylene glycol, polyethylene glycol, sorbitol / mannitol, acetylated monoglycerides, monoacetate, diacetate, triacetate, and 1,3-butanediol, or mixtures thereof. Examples of fillers include starch, talc, calcium sulfate, nanocellulose, disc refined wood pulp, insoluble fibers, soluble fibers, calcium carbonate, dicalcium phosphate, clay, etc.

[0070] Because biodegradable plastics have good degradability, the composite material structure 100 containing the biodegradable plastic and the products using the composite material structure 100 have a relatively low impact on the environment, thus possessing environmentally friendly characteristics.

[0071] [Next layer]

[0072] In some embodiments, an adhesive layer may be provided between the plastic layer 120 and the substrate 110 to improve the adhesion between the plastic layer 120 and the substrate 110. It should be noted that even in some embodiments where a first fragrance layer 130 is provided between the plastic layer 120 and the substrate 110 and the adhesive layer is formed after the first fragrance layer 130 (i.e., the adhesive layer is located between the plastic layer 120 and the first fragrance layer 130), since the first fragrance layer 130 is relatively thin and the substrate 110 is still the main material providing support, the adhesive layer can still be regarded as enhancing the adhesion between the plastic layer 120 and the substrate 110.

[0073] In some embodiments, the adhesive layer may be formed by drying a single layer of adhesive. The adhesive may be a two-component reactive adhesive, which may include a first component and a second component (curing agent). The first component may consist of one or more polyols selected from the group consisting of polyurethane polyols, polyester polyols, and polyether polyols. The second component may consist of isocyanate. In some embodiments, the adhesive may also be an acrylate resin, a methacrylate resin, or a polyethyleneimine resin, etc.

[0074] In some embodiments, the plastic layer 120 and the substrate 110 (or "the plastic layer 120 and the first fragrance layer 130 and the first fragrance layer 130 and the substrate 110") are in direct contact without an adhesive layer. For example, in some embodiments, the plastic layer 120 is formed on the substrate 110 (or the substrate 110 having the first fragrance layer 130) by hot pressing or coating, thereby directly bonding the plastic layer 120 to the substrate 110 (or the substrate 110 having the first fragrance layer 130).

[0075] In some embodiments, the biodegradable plastic in the plastic layer 120 is polylactic acid (PLA), and the plastic layer 120 and the substrate 110 (or "the plastic layer 120 and the first fragrance layer 130 and the first fragrance layer 130 and the substrate 110") are in direct contact without an adhesive layer.

[0076] It is worth noting that when one of the two layers to be bonded contains polylactic acid (PLA), those skilled in the art generally do not omit the bonding layer between the two layers. Specifically, because PLA itself has poor flexibility, tensile strength, and machinability, in order to obtain a composite layer with a certain strength, when one of the two layers to be bonded contains PLA, the bonding layer between these two layers is usually not omitted. However, the inventors have discovered that composite layers formed by the aforementioned hot pressing or lamination methods can still have acceptable mechanical strength without the need for a bonding layer. Furthermore, since a bonding layer with a strong odor is not required, for some products where fragrance is a major concern, the interference with the original fragrance can be significantly reduced, resulting in a purer fragrance in the composite material structure 100.

[0077] [Fragrance]

[0078] The adhesive layer fragrance 121 in plastic layer 120, the first fragrance agent in first fragrance layer 130, and the second fragrance agent in second fragrance layer 140 all contain fragrances. The fragrances contained in adhesive layer fragrance 121, the first fragrance agent, and the second fragrance agent may be the same or different. In this case, fragrance refers to materials that, where permitted by local regulations, can be used in a product to produce a desired flavor. Examples of fragrances include natural fragrances such as lemon oil, orange oil, rose oil, menthol, and plant essential oils, as well as synthetic fragrances such as vanillin, maltol, phenylethyl alcohol, methylparaben, citral, and ionone.

[0079] In some embodiments, the adhesive fragrance agent 121, the first fragrance agent, and the second fragrance agent may be in the form of microcapsules, that is, each may be selectively a microcapsule encapsulated with fragrance. By using the microcapsule form, the fragrance can be protected to a certain extent from the deterioration caused by environmental factors (such as humidity and oxygen), the release rate of the fragrance can be controlled, the duration of fragrance can be prolonged, and the compatibility between the fragrance and other materials can be improved.

[0080] Microcapsules may have a core-shell structure, with the shell being a polymer membrane and the core being a flavoring-containing liquid. The size of the microcapsules can range from 1 µm to 1,000 µm in diameter. Microcapsules can be manufactured using any suitable known manufacturing method. For example, a dual-nozzle method can be used, where the flavoring-containing liquid is expelled from an inner nozzle while a liquid membrane substance is simultaneously expelled from an outer nozzle. The membrane of the microcapsules can be made from, for example, starch, chitosan, sodium alginate, gum arabic, dextrin, polysaccharides, agar, gellan gum, gelatin, carrageenan, etc.

[0081] [Fragrance layer]

[0082] The first fragrance layer 130 and the second fragrance layer 140 in the composite material structure 100 can be prepared by mixing the corresponding first fragrance agent and the second fragrance agent with a suitable dispersing medium / solvent (e.g., water) to form a fragrance liquid, and then spreading the fragrance liquid at the desired location (e.g., on the first side 111 or the second side 112 of the substrate 110) by spraying, coating, printing, etc., and then waiting for the dispersing medium / solvent to dry to form the corresponding first fragrance layer 130 or second fragrance layer 140.

[0083] In some embodiments, the content of the first fragrance agent in the first fragrance layer 130 is 0.1 g / m³. 2 Up to 10.0 g / m 2 Preferably, the content of the first fragrance agent is 0.3 g / m³. 2 Up to 5.0 g / m 2 The content of the second fragrance agent in the second fragrance layer 140 is 0.1 g / m 2 Up to 10.0 g / m 2 Preferably, the content of the second fragrance agent is 0.3 g / m³. 2 Up to 5.0 g / m 2 .

[0084] Furthermore, in some embodiments, the composite material structure 100 has at least one of the following properties:

[0085] (a) According to the measurement method of GB / T451.2, the overall basis weight of the composite material structure is 20.0-150.0 g / m². 2 This allows the composite material structure 100 to be easy to process and cost-effective, while also possessing suitable strength. Preferably, the overall basis weight of the composite material structure 100 can be 35.0-95.0 g / m³. 2 ;

[0086] (b) According to the measurement method of GB / T24218.2-2009, the overall thickness of the composite material structure 100 is 0.06-0.60 mm. Preferably, the overall thickness of the composite material structure 100 is 0.08-0.50 mm, which gives the composite material structure 100 better mechanical strength and processability;

[0087] (c) According to the measurement method of GB / T36392, the coating weight of the plastic layer 120 in the composite structure 100 is 5.0-130.0 g / m². 2 Preferably, the amount of plastic layer 120 in composite structure 100 can be 10.0-80.0 g / m². 2This allows for the formation of a more uniform plastic layer 120 on the substrate 110, resulting in a better fragrance barrier effect.

[0088] (d) According to the measurement method of GB7974, the brightness (also known as "whiteness") of the second side 112 of the substrate 110 of the composite material structure 100 is ≥75.0%. Preferably, the brightness of the second side 112 of the substrate 110 of the composite material structure 100 is ≥85.0%.

[0089] (e) According to the measurement method of GB7974, the fluorescence brightness of the composite structure 100 is ≤1.2%, that is, the composite structure 100 contains only a small amount or no fluorescent whitening agent, which can improve its safety to the human body.

[0090] (f) According to the measurement method of GB / T12914, the longitudinal tensile strength of the composite material structure 100 is 1.0-5.0 kN / m. Preferably, the longitudinal tensile strength of the composite material structure 100 is 2.0-5.0 kN / m, which gives the composite material structure 100 better mechanical strength and processability;

[0091] (g) According to the measurement method of GB / T462, the moisture content of the composite structure 100 is 3-7%. Preferably, the moisture content of the composite structure 100 is 5-6%, which can give the composite structure 100 better flatness, mechanical strength maintenance and mildew resistance.

[0092] In some embodiments, the composite material structure 100 may have the maximum range of properties among all of the preceding (a)-(g). In some embodiments, the composite material structure 100 may have at least one or even all of the preferred range of properties among the preceding (a)-(g).

[0093] Next, please refer to Figure 5 . Figure 5This is a flowchart illustrating an embodiment of the preparation method of the composite material structure 100 according to this invention. This invention also provides a method for preparing the composite material structure 100, comprising: step S01(a) optionally forming a first fragrance layer 130 on a first side 111 of a substrate 110; step S02(b) forming a plastic layer 120 on the first side 111 of the substrate 110, wherein if the substrate 110 has the first fragrance layer 130, the plastic layer 120 is formed on the first fragrance layer 130; and step S03(c) optionally forming a second fragrance layer 140 on a second side 112 of the substrate 110, wherein the composite material structure 100 must have the second fragrance layer 140 when the plastic layer 120 does not contain an adhesive fragrance agent 121 and when there is no first fragrance layer 130 between the substrate 110 and the plastic layer 120.

[0094] It is worth noting that, regarding the order of the steps, the aforementioned method has no other restrictions except that step S02 must follow step S01. For example, step S03 can be performed before step S01, or between step S01 and step S02. Furthermore, the steps do not need to be performed consecutively. For instance, steps S01 and S02 can be performed first to produce a semi-finished composite material structure 100, and then step S03 can be performed on the production line when this semi-finished product is used to manufacture the target product.

[0095] In some embodiments, step S01 includes the step of "optionally spraying, coating or printing a liquid containing a first fragrance onto a first side 111 of a substrate 110".

[0096] In some embodiments, the amount of the first fragrance agent coated on the first side 111 of the substrate 110 is 0.1 g / m². 2 Up to 10.0 g / m 2 .

[0097] In some embodiments, step S02 includes the steps of "(b-1) heating a plastic layer material containing biodegradable plastic and optional adhesive flavoring 121; and then coating, extruding or casting the molten plastic layer material onto a first side 111 of a substrate 110 to form a plastic layer 120".

[0098] In some embodiments, step S02 includes the steps of "(b-2) heating a plastic layer material containing biodegradable plastic and optional adhesive flavoring 121; forming the molten plastic layer material into a sheet, and then hot-pressing the sheet onto the first side 111 of the substrate 110".

[0099] The heating temperature in steps (b-1) and (b-2) above is not particularly limited, as long as it allows the plastic layer material to reach a flowable molten state. In some embodiments, if the biodegradable plastic contains polylactic acid, the heating temperature in steps (b-1) and (b-2) above can be 120-200°C. From the viewpoint of ease of processing and energy saving, if the biodegradable plastic contains polylactic acid, the heating temperature in steps (b-1) and (b-2) above can be 130-180°C, preferably 120-175°C.

[0100] In steps (b-1) and (b-2) above, one or more additives may be added to the plastic layer raw material as needed. It is also worth noting that "heating a plastic layer raw material" in steps (b-1) and (b-2) above can be done by mixing all the components of the plastic layer raw material before heating, or by heating some components first, adding other components, and then continuing to heat.

[0101] In some embodiments, "heating a plastic layer material, ... forming a sheet from the molten plastic layer material" in step (b-2) above refers to preparing the sheet from the molten plastic layer material through extrusion, calendering, or casting. In some embodiments, "hot-pressing the sheet onto the first side 111 of the substrate 110" in step (b-2) above refers to pressing the sheet and the substrate 110 together using heated pressure rollers. The temperature and pressure of the hot pressing can be adjusted according to the biodegradable plastic used, as long as it can be softened or melted to adhere to the target surface. In some embodiments, when the biodegradable plastic contains polylactic acid, the hot pressing temperature can be 50-180°C and the pressure can be 0.1-2.8 MPa.

[0102] The aforementioned steps (b-1) and (b-2) involve directly bonding the plastic layer 120 to the target layer without using an adhesive layer. Since an adhesive layer with a strong odor is not required, the interference with the fragrance of the composite material structure 100 can be significantly reduced for some products that have high requirements for fragrance, resulting in a purer fragrance for the composite material structure 100.

[0103] In some embodiments, step S03 includes the step of "optionally spraying, coating or printing a liquid containing a second fragrance onto a second side 112 of the substrate 110".

[0104] In some embodiments, the amount of the second fragrance agent coated on the second side 112 of the substrate 110 is 0.1 g / m². 2 Up to 10.0 g / m 2 .

[0105] [Application Items]

[0106] The composite material structure 100 of this case can be applied to a variety of fields, such as packaging materials for food, cosmetics and gifts, or printing substrates for books, magazines and brochures, as well as wallpaper, fragrance decorations, or hygiene products such as tissues and wet wipes.

[0107] In particular, it can be applied to smoking products to provide the aroma of the product itself or the smoke it produces. Smoking products (such as cigarettes) contain combustible materials (such as fine pieces of tobacco material), which produce smoke or aerosols by burning or heating the combustible material. Users inhale the smoke or aerosols by puffing from one end, experiencing the aroma of the smoke or aerosols. The size, shape, and tobacco content of smoking products can be adjusted according to needs. In addition to cigarettes, smoking products also include cigars and other products that produce smoke or aerosols for inhalation by burning or heating combustible materials.

[0108] [cigarette]

[0109] The composite material structure 100 in this case can be used in cigarettes. Please refer to [link / reference]. Figure 6 , Figure 6 This is a perspective view of an embodiment of the smoking article 200 according to this invention. In some embodiments, the cigarette 210 is an elongated cylinder having a cigarette body 211 and a filter plug 212 disposed at one end of the cigarette body 211. The filter plug 212 is used to reduce the amount of harmful substances and impurities inhaled by the user. The cigarette body 211 includes tobacco (or other combustible material, hereinafter referred to as tobacco for simplicity) and a body roll paper surrounding the rolled tobacco. The filter plug 212 includes a cylindrical body formed of filter roll paper 212a and filter material 212b disposed within the cylindrical body.

[0110] Filter media 212b can generally be natural fiber bundles (such as cellulose acetate, cotton, hemp, wood pulp fibers, etc.) or synthetic fiber bundles (such as polypropylene, etc.). These fiber bundles can take the form of continuous fiber bundles, staple fiber bundles, non-woven web, paper, etc. In some embodiments, porous foam materials or mixtures of the above forms can also be used. Among them, cellulose acetate fiber bundles are preferred filter media 212b materials due to their good filtration efficiency.

[0111] Please continue to refer to this. Figure 6The cigarette body 211 and the filter plug 212 can be connected to each other in various ways. For example, a ring tipping 213 can be applied in a full-tipping overwrap manner to the joint between the cigarette body 211 and the filter plug 212 to connect them. That is, the ring tipping 213 not only covers the joint between the cigarette body 211 and the filter plug 212, but also covers the entire filter plug 212.

[0112] (1) Composite material structure 100 is applied to the filter paper 212a of cigarette 210.

[0113] In some embodiments, the filter roll 212a of the filter stopper 212 may include the composite material structure 100 of this invention. For example, the composite material structure 100 is used to roll the filter material 212b to form the filter stopper 212. The plastic layer 120 of the composite material structure 100 faces the interior of the cigarette 210. That is, the plastic layer 120 of the composite material structure 100 faces the filter material 212b. In this case, the first side 111 of the substrate 110 of the composite material structure 100 is closer to the interior of the cigarette 210 than the second side 112.

[0114] Since the plastic layer 120 of the composite material structure 100 faces inward towards the cigarette 210, when the cigarette 210 is lit and the user inhales it, the airflow with a certain temperature generated by combustion effectively softens the plastic layer 120 of the composite material structure 100 as it passes through the filter plug 212. At this time, the flavoring agent 121 dispersed in the plastic layer 120, or the first flavoring layer 130 sandwiched between the plastic layer 120 and the substrate 110, can gradually release flavor as the plastic layer 120 softens and melts, or the flavor of the second flavoring layer 140 disposed on the second side 112 of the substrate 110 gradually increases as it penetrates into the first side 111 of the substrate 110. Accordingly, the cigarette 210 can further release aroma after heating, and since the aroma is slowly released after the plastic layer 120 gradually melts, the aroma of the cigarette 210 is relatively longer-lasting and stable compared to using a material without a plastic layer 120 as the filter paper 212a.

[0115] In some embodiments, the plastic layer 120 of the composite material structure 100, in addition to facing inwards towards the cigarette 210, is also the innermost layer of the filter paper 212a. By making the composite material structure 100 the innermost layer of the filter paper 212a, the plastic layer 120 will be the innermost layer of the filter stopper 212. Accordingly, the airflow with a certain temperature generated by the combustion of the cigarette 210 will come into contact with the plastic layer 120 when passing through the filter stopper 212, which will more effectively soften the plastic layer 120 of the composite material structure 100, thereby allowing the composite material structure 100 to more quickly begin the process of gradually releasing aroma.

[0116] In some embodiments, the plastic layer 120 of the composite material structure 100 of the cigarette 210 does not contain the adhesive flavoring agent 121, and there is no first flavoring layer 130 between the substrate 110 and the plastic layer 120, but the composite material structure 100 has a second flavoring layer 140. In this case, the substrate 110 may be a highly breathable paper, for example, a paper with a breathability greater than 2,000 CU. With this structure, the flavor of the second flavoring layer 140 located on the second side 112 of the substrate 110 can more easily enter the interior of the cigarette 210 and be delivered to the user with the inhalation airflow when the user smokes the cigarette 210.

[0117] (2) Composite material structure 100 is used in filter material 212b of cigarette 210

[0118] In some embodiments, filter material 212b comprises a composite material structure 100. For example, filter material 212b is formed by crimping and / or rolling the composite material structure 100. Details regarding methods for preparing filter material 212b can be further referred to, for example, Taiwan Utility Model Patent M667645.

[0119] When the filter material 212b contains the composite material structure 100, the airflow with a certain temperature generated by the combustion of the cigarette 210 softens the plastic layer 120 of the composite material structure 100 in the filter material 212b when it passes through the filter plug 212. At this time, the flavoring agent 121 dispersed in the plastic layer 120, or the first flavoring layer 130 sandwiched between the plastic layer 120 and the substrate 110, can gradually release the flavor as the plastic layer 120 softens and melts. Alternatively, the flavor carried by the airflow from the second side 112 of the second flavoring layer 140 to the first side 111 of the substrate 110 will also gradually increase.

[0120] It is worth noting that, because the composite material structure 100 has a plastic layer 120, it may produce undesirable odors when it burns, while the cigarette body 211 of the cigarette 210 is the area that burns directly. Therefore, in some embodiments, the cigarette body 211 of the cigarette 210 (containing tobacco and the outer body paper) does not contain the composite material structure 100. Accordingly, the aroma produced when the cigarette 210 burns can be purer.

[0121] Heated cigarettes

[0122] Smoking products also include non-traditional cigarettes, such as heated tobacco (HNB) cigarettes. Heated tobacco (HNB) cigarettes are produced by heating tobacco or other materials containing volatile substances to a specific temperature (e.g., 350°C) without combustion to create an aerosol for the user to inhale. By heating the tobacco in these HNB cigarettes, an aerosol containing nicotine is delivered, while avoiding the harmful byproducts of tobacco breakdown during high-temperature combustion.

[0123] In some cases, heated tobacco products may include tobacco or other volatile materials rolled in a paper roll, along with a mouthpiece assembly, giving them an appearance similar to traditional cigarettes. By inserting such a product into a heating device, the tobacco or other volatile materials are heated to produce an aerosol (e.g., using inductive, electromagnetic, resistive, or infrared heating devices, heating from inside or outside the cigarette), allowing the user to inhale.

[0124] Please see Figure 7 . Figure 7 This is a perspective view of an embodiment of the smoking article 200 of this invention. In some embodiments, the heated tobacco product 220, depending on its state of use, sequentially includes a filter section 221, a cooling section 222, a tobacco material section 223, and an optional plug section 224, from the end inhaled by the user toward the direction away from the user. Each section has a molding material 220a. The filter section 221, cooling section 222, and plug section 224 each have filter material 220b disposed within the space formed by the molding material 220a, while the cooling section 222 optionally has filter material 220b disposed within the space formed by the molding material 220a. Each section can be integrated into one unit by, for example, the aforementioned tipping paper 213; for simplicity, ... Figure 7 The splicing paper 213 is not shown in the drawing.

[0125] [Tobacco material section 223, filter section 221]

[0126] In some embodiments, the structure of the tobacco material segment 223 and the filter segment 221 can be similar to that of the cigarette body 211 and filter plug 212 used in the cigarette 210 described above. That is, the tobacco material segment 223 includes tobacco (or other materials containing volatile substances; for the sake of simplicity, the following description will use tobacco as an example) and the molding material 220a surrounding the rolled tobacco. The filter segment 221 includes a cylindrical body formed of the molding material 220a and a filter material 220b disposed within the cylindrical body (the material selection for the filter material 220b can be referred to the material of the filter material 212b mentioned earlier).

[0127] In some embodiments, the molding material 220a of the tobacco material segment 223 includes a composite material structure 100, and the plastic layer 120 of the composite material structure 100 faces the interior of the heat-not-burn cigarette 220. When the heat-not-burn cigarette 220 is heated and the user inhales it, the heating temperature or the aerosol generated by the heated tobacco will soften the plastic layer 120 of the composite material structure 100. Accordingly, the flavoring agent 121 dispersed in the plastic layer 120, or the first flavoring layer 130 sandwiched between the plastic layer 120 and the substrate 110, can gradually release flavor as the plastic layer 120 softens and melts, or gradually increase the flavor penetrating from the second flavoring layer 140 disposed on the second side 112 of the substrate 110 to the first side 111 of the substrate 110.

[0128] It is worth noting that since the tobacco material segment 223 of the heated tobacco product 220 generates an aerosol through heating rather than through combustion, the aforementioned situation of "the plastic layer 120 producing an undesirable odor due to combustion" does not occur. Therefore, even though the composite material structure 100 is used in the tobacco material segment 223, the aroma produced by the heated tobacco product 220 remains relatively pure.

[0129] In some embodiments, the composite material structure 100 is the innermost layer of the tobacco material segment 223, except that the molding material 220a of the tobacco material segment 223 includes a composite material structure 100 and the plastic layer 120 of the composite material structure 100 faces the interior of the heated tobacco 220. Due to this structure, since the plastic layer 120 is the innermost layer of the tobacco material segment 223, the aerosol generated by the heated tobacco inside the tobacco material segment 223 will come into contact with the plastic layer 120. Accordingly, the plastic layer 120 of the composite material structure 100 can begin to soften or melt more quickly, thereby rapidly initiating the gradual release of aroma.

[0130] Regarding the structure of the filter segment 221, please refer to the description of the front filter plug 212. For example, in some embodiments, the molding material 220a of the filter segment 221 includes a composite material structure 100, and the plastic layer 120 of the composite material structure 100 faces inward toward the interior of the heated tobacco product 220. In some embodiments, in addition to facing inward toward the interior of the heated tobacco product 220, the composite material structure 100 is also the innermost layer of the molding material 220a. Furthermore, the filter material 220b of the filter segment 221 may include the composite material structure 100. For example, the filter material 220b of the filter segment 221 is formed by crimping and / or rolling the composite material structure 100. When the aerosol generated by heating the heated tobacco product 220 passes through the filter segment 221 having the aforementioned characteristics, the corresponding effects of the aforementioned characteristics in the cigarette 210 can also be produced.

[0131] [Cooling Section 222]

[0132] The heated tobacco product 220 includes a cooling section 222, which can be formed by rolling one or more identical or different sheet materials into a hollow tube shape. It should be noted that the term "hollow" here refers to a state where airflow can pass through the cooling section 222; therefore, it is not limited to a completely empty cooling section 222, but also includes a state where there is internal filling but still some space for airflow. For a completely empty case, please refer to [reference needed]. Figure 8 . Figure 8 This is a cross-sectional schematic diagram of the cooling section 222 according to an embodiment of the smoking article 200 of this case, showing the cooling section 222 completely without any filler. It should be noted that, for the sake of simplicity, the molding material 220a of each section is not shown. Figure 8 In the middle. The cooling section 222 has filling material inside but still maintains a certain space for airflow; for example, "the cooling section 222 has filter material 220b". Or, as... Figure 9 As shown, Figure 9 A cross-sectional schematic diagram of the cooling section 222 drawn according to an embodiment of the smoking article 200 of this case (the molding material 220a of each section is also not shown). Figure 9 (In some embodiments, the cooling section 222 may have a partition 2221 to extend the airflow path and increase the cooling effect.)

[0133] Although the aerosol produced by heated tobacco products 220 has a lower temperature than the smoke produced by burning tobacco, its higher water content results in greater thermal conductivity. Therefore, compared to the smoke from burning tobacco, the aerosol produced by heated tobacco products 220 is more likely to irritate or even burn the user's mouth. Therefore, by extending the airflow passage with a cooling section 222 between the tobacco material section 223 and the filter section 221, the temperature of the aerosol entering the mouth can be reduced.

[0134] In some embodiments, the molding material 220a of the cooling section 222 includes the composite material structure 100 of this invention, and the plastic layer 120 of the composite material structure 100 faces the interior of the heated tobacco product 220. Accordingly, when the heated tobacco product 220 is heated and inhaled, an aerosol with a certain temperature will pass through the cooling section 222, causing the plastic layer 120 in the composite material structure 100 of the cooling section 222 to soften or melt, thereby allowing the flavoring agent 121 dispersed in the plastic layer 120, or the first flavoring layer 130 sandwiched between the plastic layer 120 and the substrate 110, to further and gradually release its flavor, or allowing the second flavoring layer 140 disposed on the second side 112 of the substrate 110 to gradually penetrate into the first side 111 of the substrate 110. Since the flavor is gradually released as the plastic layer 120 gradually softens and melts, the aroma can be more stable.

[0135] In some embodiments, the molding material 220a of the cooling section 222 comprises the composite material structure 100 of this invention, wherein the plastic layer 120 of the composite material structure 100 faces inward toward the interior of the heated non-combustible cigarette 220, and the composite material structure 100 is the innermost layer of the cooling section 222. Due to this structure, since the plastic layer 120 will be the innermost layer of the cooling section 222, the aerosol generated by the heated tobacco will come into contact with the plastic layer 120. Accordingly, the plastic layer 120 of the composite material structure 100 can begin to soften or melt more quickly, thereby rapidly initiating the gradual release of aroma. For example, in some embodiments, the molding material 220a of the cooling section 222 comprises a layer of impermeable paper (e.g., paper with an air permeability of less than 10 CU) and the composite material structure 100. The plastic layer 120 of the composite material structure 100 faces inward toward the interior of the heated non-combustible cigarette 220, and the composite material structure 100 is the innermost layer of the cooling section 222.

[0136] In some embodiments, the plastic layer 120 in the composite material structure 100 of the cooling section 222 does not contain the adhesive flavoring agent 121, and there is no first flavoring layer 130 between the substrate 110 and the plastic layer 120, but the composite material structure 100 has a second flavoring layer 140. In this case, the substrate 110 can be a highly breathable paper, for example, a paper with a breathability greater than 2,000 CU. With this structure, the flavor of the second flavoring layer 140 located on the second side 112 of the substrate 110 can more easily enter the interior of the heated tobacco product 220 when the user inhales it.

[0137] In some embodiments, the filter material 220b of the cooling section 222 may include a composite material structure 100. For example, the filter material 220b of the cooling section 222 is formed by crimping and / or rolling the composite material structure 100. When the filter material 220b includes the composite material structure 100, the aerosol with a certain temperature will soften the plastic layer 120 of the composite material structure 100 in the filter material 212b when it passes through the cooling section 222. At this time, the fragrance agent 121 dispersed in the plastic layer 120, or the first fragrance layer 130 sandwiched between the plastic layer 120 and the substrate 110, can gradually release fragrance as the plastic layer 120 softens and melts, or the fragrance carried out by the vapor passing through the second fragrance layer 140 to the first side 111 of the substrate 110 will also gradually increase.

[0138] [Blockage Section 224]

[0139] In some embodiments, the heated tobacco product 220 has a stopper section 224. The stopper section 224 is located on the side of the tobacco material section 223 away from the filter section 221 to prevent tobacco from falling out of the tobacco material section 223. It also traps carbonized tobacco shreds, tobacco dust, or tar-like substances, preventing these substances from falling into the heating device and contaminating it. The structure of the stopper section 224 can be similar to that of the filter section 221, having a molded material 220a and a filter material 220b disposed within the space formed by the molded material 220a. Other features of the stopper section 224 can be found in the preceding description of the filter section 221.

[0140] In summary, in some embodiments of this invention, the filter section 221, cooling section 222, tobacco material section 223, and optional plug section 224 of the heated tobacco product 220 may contain one or more sections of a composite material structure 100. Furthermore, the filter material 220b in the filter section 221, cooling section 222, and plug section 224 may contain one or more sections of a composite material structure 100. These features allow the heated tobacco product 220 to have a gradually released aroma during use.

[0141] In summary, this case presents the following creative works:

[0142] State 1:

[0143] A composite material structure comprising:

[0144] A substrate having a first side and a second side opposite to the first side;

[0145] A plastic layer comprising a biodegradable plastic, the plastic layer being located on the first side of the substrate, and the plastic layer optionally containing an adhesive fragrance.

[0146] An optional first fragrance layer is located between the substrate and the plastic layer, the first fragrance layer having a first fragrance agent; and

[0147] An optional second fragrance layer is located on the second side of the substrate, and the second fragrance layer contains a second fragrance agent;

[0148] Wherein, when (1) the plastic layer does not contain the fragrance agent of the adhesive layer and (2) there is no first fragrance layer between the substrate and the plastic layer, the composite material structure must have the second fragrance layer.

[0149] State 2:

[0150] As described in Sample 1, the composite material structure has a first fragrance layer between the substrate and the plastic layer, and the first fragrance layer is in direct contact with both the substrate and the plastic layer; or, the substrate and the plastic layer do not have the first fragrance layer, and the plastic layer is in direct contact with the substrate.

[0151] State 3:

[0152] The composite material structure as described in Sample 1, wherein the substrate comprises natural fibers or artificial synthetic fibers.

[0153] State 4:

[0154] The composite material structure as described in Sample 1, wherein the biodegradable plastic comprises polylactic acid (PLA), butylene adipate-butylene terephthalate copolymer (PBAT), polybutylene succinate (PBS), polypropylene carbonate (PPC), polyhydroxyalkanoates (PHA), polycaprolactone (PCL), polyvinyl alcohol (PVA), polyglycolic acid (PGA), polyglycerol sebacate (PGS), polyhydroxybutyrate (PHB), or copolymers formed from the above polymer monomers.

[0155] State 5:

[0156] The composite material structure as described in sample 1, wherein (1) the plastic layer does not contain the adhesive fragrance agent and (2) there is no first fragrance layer between the substrate and the plastic layer, the composite material structure has the second fragrance layer, and the air permeability of the substrate is greater than 2,000 CU.

[0157] State 6:

[0158] The composite material structure as described in Sample 1, wherein the weight of the fragrance agent in the adhesive layer accounts for 0.05% to 10% of the total weight of the plastic layer.

[0159] State 7:

[0160] As described in sample 1, the content of the first fragrance agent in the first fragrance layer is 0.1 g / m³. 2Up to 10.0 g / m 2 .

[0161] State 8:

[0162] As described in sample 1, the content of the second fragrance agent in the second fragrance layer is 0.1 g / m³. 2 Up to 10.0 g / m 2 .

[0163] State 9:

[0164] A smoking article comprising a composite material structure as described in Sample 1.

[0165] State 10:

[0166] The smoking article as described in Sample 9, wherein the smoking article is a cigarette, the cigarette having a cigarette body and a filter plug disposed at one end of the cigarette body, the filter plug comprising a filter material and a filter roll paper covering the filter material; wherein, (1) the filter material comprises a composite material structure as described in Sample 1, or (2) the filter roll paper comprises a composite material structure as described in Sample 1, and the plastic layer of the composite material structure faces the interior of the cigarette.

[0167] State 11:

[0168] The smoking article as described in sample 10, wherein the filter paper comprises a composite material structure as described in sample 1, wherein the plastic layer of the composite material structure faces the interior of the cigarette, and the composite material structure is the innermost layer of the filter paper.

[0169] State 12:

[0170] The smoking article as described in sample 10, wherein the filter paper comprises a composite material structure as described in sample 1, wherein the plastic layer of the composite material structure faces the interior of the cigarette, and wherein (1) the plastic layer of the composite material structure does not contain the flavoring agent and (2) the first flavoring layer is not present between the substrate and the plastic layer, the composite material structure has the second flavoring layer, and the air permeability of the substrate is greater than 2,000 CU.

[0171] State 13:

[0172] The smoking article as described in Sample 9, wherein the smoking article is a heated tobacco product, the heated tobacco product comprising, from one end to the other, a filter section, a cooling section, a tobacco material section and an optional end cap section, each section having a molding material, and the filter section and the end cap section each having a filter material disposed within the space formed by the molding material, the cooling section optionally having another filter material disposed within the space formed by the molding material of the cooling section; wherein, (1) the filter material of the filter section, the filter material of the end cap section or the other filter material of the cooling section, at least one of which comprises a composite material structure as described in Sample 1, or (2) at least one of the filter section, the cooling section, the tobacco material section and the end cap section, wherein the molding material comprises a composite material structure as described in Sample 1, and the plastic layer of the composite material structure faces the interior of the heated tobacco product.

[0173] State 14:

[0174] The smoking article as described in Sample 13, wherein at least one of the filter section, the cooling section, the tobacco material section, and the plug section, is formed of a composite material structure as described in Sample 1, and the plastic layer of the composite material structure faces the interior of the heated non-combustible cigarette, and the composite material structure is the innermost layer of the section.

[0175] State 15:

[0176] The smoking article as described in sample 13, wherein at least one of the filter section, the cooling section and the plug section is formed of a composite material structure as described in sample 1, wherein the plastic layer of the composite material structure faces the interior of the heated non-combustible cigarette, and wherein (1) the plastic layer of the composite material structure does not contain the flavoring agent and (2) there is no first flavoring layer between the substrate and the plastic layer, the composite material structure has the second flavoring layer, and the air permeability of the substrate is greater than 2,000 CU.

[0177] State 16:

[0178] A method for manufacturing a composite material structure as described in Sample 1, comprising:

[0179] (a) Optionally, the first fragrance layer is formed on the first side of the substrate;

[0180] (b) The plastic layer is formed on the first side of the substrate, wherein if the first fragrance layer is present on the substrate, the plastic layer is formed on the first fragrance layer; and

[0181] (c) Optionally, the second fragrance layer may be formed on the second side of the substrate;

[0182] Wherein, when (1) the plastic layer does not contain the fragrance agent of the adhesive layer and (2) there is no first fragrance layer between the substrate and the plastic layer, the composite material structure must have the second fragrance layer.

[0183] State 17:

[0184] The manufacturing method as described in sample 16, wherein step (a) includes optionally spraying, coating or printing a liquid containing the first fragrance agent onto the first side of the substrate.

[0185] State 18:

[0186] The manufacturing method as described in sample 16, wherein step (b) comprises heating a plastic layer material containing the biodegradable plastic and optionally the adhesive layer flavoring agent; and then coating, extruding or casting the molten plastic layer material onto the first side of the substrate to form the plastic layer.

[0187] State 19:

[0188] The manufacturing method as described in sample 16, wherein step (b) comprises heating a plastic layer material containing the biodegradable plastic and optionally the adhesive layer flavoring agent; forming the molten plastic layer material into a sheet; and then hot-pressing the sheet onto the first side of the substrate to form the plastic layer.

[0189] State Sample 20:

[0190] The manufacturing method as described in sample 16, wherein step (c) includes optionally spraying, coating or printing a solution containing the second fragrance agent onto the second side of the substrate.

[0191] The features of the above-described embodiments are conducive to the understanding of this utility model by those skilled in the art. Those skilled in the art should understand that this utility model can be used as a basis to design and modify other structures or preparation methods to achieve the same purpose as the above embodiments. Those skilled in the art should also understand that these equivalent substitutions do not depart from the spirit and scope of this utility model, and changes, substitutions, or modifications can be made without departing from the spirit and scope of this utility model.

Claims

1. A composite material structure, characterized in that, Include: A substrate having a first side and a second side opposite to the first side; A plastic layer comprising a biodegradable plastic, the plastic layer being located on the first side of the substrate, and the plastic layer optionally containing an adhesive fragrance. An optional first fragrance layer is located between the substrate and the plastic layer, and the first fragrance layer contains a first fragrance agent; as well as An optional second fragrance layer is located on the second side of the substrate, and the second fragrance layer contains a second fragrance agent; Wherein, when (1) the plastic layer does not contain the fragrance agent of the adhesive layer and (2) there is no first fragrance layer between the substrate and the plastic layer, the composite material structure has the second fragrance layer.

2. The composite material structure as described in claim 1, characterized in that, The first fragrance layer is present between the substrate and the plastic layer, and the first fragrance layer is in direct contact with both the substrate and the plastic layer; or, the first fragrance layer is not present between the substrate and the plastic layer, but the plastic layer is in direct contact with the substrate.

3. The composite material structure as described in claim 1, characterized in that, The substrate contains natural or synthetic fibers.

4. The composite material structure as described in claim 1, characterized in that, (1) The plastic layer does not contain the fragrance agent of the adhesive layer and (2) There is no first fragrance layer between the substrate and the plastic layer, the composite material structure has the second fragrance layer, and the air permeability of the substrate is greater than 2,000 CU.

5. A smoking product, characterized in that, It includes the composite material structure as described in claim 1.

6. The smoking article as described in claim 5, characterized in that, The smoking product is a cigarette, which has a cigarette body and a filter plug disposed at one end of the cigarette body. The filter plug includes a filter material and a filter roll paper covering the filter material. (1) The filter material includes a composite material structure as described in claim 1, or (2) The filter roll paper includes a composite material structure as described in claim 1, and the plastic layer of the composite material structure faces the interior of the cigarette.

7. The smoking article as described in claim 6, characterized in that, The filter roll includes the composite material structure as described in claim 1, wherein the plastic layer of the composite material structure faces the interior of the cigarette, and the composite material structure is the innermost layer of the filter roll.

8. The smoking article as described in claim 6, characterized in that, The filter roll comprises a composite material structure as described in claim 1, wherein the plastic layer of the composite material structure faces the interior of the cigarette, and wherein (1) the plastic layer does not contain the flavoring agent and (2) there is no first flavoring layer between the substrate and the plastic layer, and the composite material structure has the second flavoring layer, and the air permeability of the substrate is greater than 2,000 CU.

9. The smoking article as described in claim 5, characterized in that, The smoking product is a heated tobacco product, which sequentially includes a filter section, a cooling section, a tobacco material section, and an optional end cap section from one end to the other. Each section has a molding material, and the filter section and the end cap section each have a filter material disposed inside the space formed by the molding material. The cooling section may optionally have another filter material disposed inside the space formed by the molding material of the cooling section. Among them, (1) the filter material of the filter section, the filter material of the end cap section, or the other filter material of the cooling section, at least one of them contains the composite material structure as described in claim 1, or (2) at least one of the filter section, the cooling section, the tobacco material section, and the end cap section, the molding material of which contains the composite material structure as described in claim 1, and the plastic layer of the composite material structure faces the interior of the heated tobacco product.

10. The smoking article as described in claim 9, characterized in that, At least one of the filter section, the cooling section, the tobacco material section, and the plug section, wherein the molding material comprises a composite material structure as described in claim 1, and the plastic layer of the composite material structure faces the interior of the heated non-combustible cigarette, and the composite material structure is the innermost layer of the section.

11. The smoking article as described in claim 9, characterized in that, The molding material of at least one of the filter section, the cooling section, and the plug section comprises a composite material structure as described in claim 1, wherein the plastic layer of the composite material structure faces the interior of the heated non-combustible cigarette, and wherein (1) the plastic layer of the composite material structure does not contain the adhesive flavoring agent and (2) there is no first flavoring layer between the substrate and the plastic layer, and the composite material structure has the second flavoring layer, and the air permeability of the substrate is greater than 2,000 CU.

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