Mouthpiece or filter element for smoking products

Abstract

The present invention relates to a mouthpiece or filter element comprising at least a filtering core arranged to provide a channel for aerosols and / or smoke delivered to a user, and a wrapper surrounding the filtering core, wherein the filtering core comprises a first filtering material and a second filtering material.

Description

[Technical Field]

[0001] The present invention provides a mouthpiece or filter element for use in smoking articles such as cigarettes, heated tobacco products, or non-combustion heated products. [Background technology]

[0002] Mouthpieces or filter elements for smoking products such as cigarettes, heated tobacco products, or heat-not-burn (HNB) products can be manufactured from several different materials. Currently, most commercially available cigarette filters contain a significant amount of cellulose acetate. However, because cellulose acetate is a plastic and has low biodegradability, cigarette filters (and cigarette butts) containing cellulose acetate can persist in the environment for extended periods. Therefore, there is growing interest in filter elements (such as mouthpieces) that exhibit better biodegradability and / or are more sustainable materials.

[0003] Paper is an alternative filtration material to cellulose acetate. Filters containing paper as a filtering material are well known in the art. Paper filters offer many advantages over cellulose acetate filters in terms of improved biodegradability and higher filtering efficiency at a given pressure drop. However, paper filters also have several disadvantages compared to cellulose acetate filters. For example, paper filters may negatively affect the flavor of cigarettes, reduce the stiffness of the filter, and have an unsightly appearance before and after smoking (as a result of staining). Furthermore, paper filters typically have a lower retention rate of toxic phenolic compounds and a much higher retention rate of tar and nicotine than those made from cellulose acetate. Therefore, the user experience is inferior compared to conventional cigarettes with cellulose acetate filters.

[0004] Therefore, it is desirable to provide mouthpieces or filter elements for smoking articles (e.g., cigarettes, heated tobacco products, non-combustion heated (HNB) products) that offer acceptable filtering characteristics and user experience, and / or require less unsustainable materials, while having improved biodegradability compared to conventional materials such as cellulose acetate. [Overview of the Initiative]

[0005] According to the present invention, the first aspect is at least, A filtering core arranged to provide a channel for aerosols and / or smoke delivered to the user, - A mouthpiece or filter element including a wrapper surrounding the filtering core, - The filtering core, - The first filtering material, - The second filtering material, This relates to a mouthpiece or filter element, including the following:

[0006] The mouthpiece or filter element described above has a filtering core containing two filtering materials. As a result, the mixture allows the user experience and filtering characteristics to be maintained at the same level as conventional existing filters or mouthpieces, while at the same time enabling the use of sustainable materials, i.e., reducing the amount of conventional filtering material.

[0007] The present invention may be further defined by the following features, either alone or in combination:

[0008] According to one embodiment, the first filtering material includes cellulose. Cellulose is a compound of the form (C6H 10 O5) nIt is an organic compound represented by [formula]. In this application, the term "cellulose" refers to the above molecule, which is an important component of the primary cell wall of green plants. In particular, cellulose can be found in wood in the form of fibers, and cellulose from wood pulp has a typical chain length of 300 to 1700 units. The use of cellulose to produce the first filtering material can improve the biodegradability of the mouthpiece or filter element. Typically, the duration for which cellulose dissolves in the natural environment is within a few days or a few months. In this application, "cellulose" does not refer to, and / or designate, the different compound "cellulose acetate".

[0009] According to one embodiment, the first filtering material comprises more than 80% by weight of cellulose, preferably more than 90% by weight of cellulose, preferably more than 95% by weight of cellulose, preferably more than 98% by weight of cellulose, and preferably more than 99% by weight of cellulose. In other words, the first filtering material is made essentially from cellulose. The applicant found that in user tests comparing cigarettes having the filter according to the present invention (a filtering core having cellulose as the first filtering material and the second filtering material) with cigarettes having a conventional filter (a filtering core having only cellulose acetate), users perceived less bitterness and less irritation in the following criteria: smoothness, sweetness, ease of smoking, hay-like, woody, bitterness, dryness, and irritation, and similar results were observed for the other criteria.

[0010] According to one embodiment, the first filtering material includes cellulose fibers exceeding 70% by weight of the weight of the first filtering material, preferably exceeding 80% by weight of the weight of the first filtering material, preferably exceeding 90% by weight of the weight of the first filtering material, preferably exceeding 95% by weight of the weight of the first filtering material, preferably exceeding 98% by weight of the weight of the first filtering material. In the present application, a fiber is an elongated object having a length longer than other dimensions (such as a cross-sectional dimension). In particular, its length exceeds 3 times the cross-sectional dimension, preferably exceeds 5 times the cross-sectional dimension, preferably exceeds 8 times the cross-sectional dimension, preferably exceeds 10 times the cross-sectional dimension.

[0011] According to one embodiment, the first filtering material is paper such as airlaid paper. Different from the normal papermaking process, airlaid paper does not use water as a transport medium for fibers. The fibers are transported by air and form the structure of the paper. The airlaid structure can be isotropic. The raw material can be long-fiber softwood fluff pulp in roll form. The pulp is disintegrated by a hammer mill. Disintegration is a process that frees the fibers from each other before entering the paper machine. Typically, airlaid paper can consist of at least 85% fibers. The binder can be applied as a spray or foam. Alternatively, additional fibers or powders can be added to the pulp, which can then be activated and cured by heat. In other words, the first filtering material is not wet-laid (wet) paper, and / or the first filtering material is not manufactured using water as a transport medium for fibers.

[0012] According to one embodiment, the first filtering material is 35 g / m 2 ~150 g / m 2 in the range of, preferably 40 g / m 2 ~120 g / m 2 in the range of, preferably 50 g / m 2 ~120 g / m 2 in the range of, preferably 50 g / m 2 ~80 g / m2 in the range of, preferably 45 g / m 2 ~75 g / m 2 in the range of, preferably 50 g / m 2 ~70 g / m 2 in the range of, preferably 55 g / m 2 ~70 g / m 2 in the range of, preferably 55 g / m 2 ~65 g / m 2 in the range of, preferably 63 g / m 2 ~57 g / m 2 It is in the form of a strip or sheet having a basis weight in the range of.

[0013] According to one embodiment, the first filtering material is in the form of a strip or sheet having a thickness in the range of 0.48 mm to 1.20 mm, preferably in the range of 0.50 mm to 0.80 mm, preferably in the range of 0.50 mm to 0.70 mm, preferably in the range of 0.53 mm to 0.63 mm, preferably in the range of 0.55 mm to 0.61 mm.

[0014] According to one embodiment, the first filtering material substantially does not contain an adhesive, and / or substantially does not contain a plastic material, and / or substantially does not contain cellulose acetate, and / or substantially does not contain an additive.

[0015] According to one embodiment, the mouthpiece or the filter element comprises the first filtering material in the range of 20% by weight to 80% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 25% by weight to 75% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 30% by weight to 70% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 35% by weight to 65% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 40% by weight to 65% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 45% by weight to 65% by weight of the total weight of the mouthpiece or the filter element, preferably in the range of 48% by weight to 62% by weight of the total weight of the mouthpiece or the filter element.

[0016] According to one embodiment, the first filtering material is in the form of an embossed strip or sheet, and the embossing is preferably a longitudinal fold substantially aligned with the axis of the mouthpiece or the filter element. In one embodiment, the embossing is provided by longitudinal folds separated by a pitch in the range of 0.5 mm to 2 mm, preferably in the range of 0.8 mm to 1.5 mm.

[0017] According to one embodiment, the first filtering material is in the form of strips or sheets randomly distributed within the filtering core.

[0018] According to one embodiment, the first filtering material is remote from the wrapper, and preferably, the first filtering material is separated from the wrapper by at least a portion of the second filtering material. This ensures that the surface of the wrapper is not deformed by the first filtering material.

[0019] According to one embodiment, the first filtering material is in the form of a strip or sheet folded within a wrapper, and the strip or sheet in its unfolded state has a width in the range of 10 mm to 200 mm, preferably 10 mm to 150 mm, preferably 15 mm to 100 mm, preferably 15 mm to 85 mm, preferably 20 mm to 80 mm, preferably 25 mm to 75 mm, preferably 30 mm to 70 mm, preferably 35 mm to 65 mm, and preferably 38 mm to 62 mm in the transverse direction with respect to the axis of the mouthpiece or filter element.

[0020] According to one embodiment, the second filtering material contains cellulose acetate. According to one embodiment, the second filtering material is essentially composed of cellulose acetate.

[0021] According to one embodiment, the second filtering material is - Filament denier in the range of -1.5 denier to 13 denier, preferably in the range of 3 denier to 9 denier, preferably in the range of 4 denier to 8 denier, preferably in the range of 5 denier to 7 denier, and / or -Total denier in the range of -9000 denier to 55000 denier, preferably in the range of 10000 denier to 24000 denier, preferably in the range of 13000 denier to 21000 denier, preferably in the range of 16000 denier to 18000 denier. Includes a tow or fluffy material having [a certain characteristic].

[0022] According to one embodiment, the second filtering material contains a plasticizer in an amount ranging from 2% to 20% by weight of the second filtering material, preferably in an amount ranging from 5% to 15% by weight of the second filtering material, and preferably in an amount ranging from 8% to 12% by weight of the second filtering material.

[0023] According to one embodiment, the second filtering material is crimped.

[0024] According to one embodiment, the wrapper defines a tube extending longitudinally outward and / or has a circular cross-section.

[0025] According to one embodiment, the wrapper has a circumference in the range of 15.00 mm to 30.00 mm, preferably 18.00 mm to 25.00 mm, preferably 20.80 mm to 22.80 mm, preferably 21.30 mm to 22.30 mm, and preferably 21.60 mm to 22.00 mm.

[0026] According to one embodiment, the wrapper is -20g / m 2 ~100g / m 2 In the range of 20 g / m², preferably 20 g / m² 2 ~50g / m 2 In the range of 20 g / m², preferably 20 g / m² 2 ~33g / m 2 In the range of 23 g / m², preferably 23 g / m² 2 ~30g / m 2 Weight within the range, and / or - Preferably, the paper has a porosity in the range of 1000 CU to 32000 CU, preferably in the range of 2400 CU to 24000 CU, and preferably in the range of 5000 CU to 8000 CU, as measured according to ISO 2965:2009.

[0027] According to one embodiment, the filtering core is a single channel of a mouthpiece or filter element.

[0028] According to one embodiment, the filtering core comprises the first filtering material and the second filtering material.

[0029] According to one embodiment, the filtering core is - Preferably 60g / m 2The first filtering material is provided as paper, preferably made of cellulose, having a basis weight of ±10%, and preferably as airlaid paper. -The second filtering material is made of cellulose acetate, optionally containing a plasticizer in 10% by weight ± 10% of the mouthpiece or filter element, and is provided as a crimped tow having 6 denier ± 10% filament denier and 17,000 denier ± 10% total denier, The mouthpiece or filter element is - The first filtering material is used in a range of 45% to 65% by weight of the total weight of the mouthpiece or filter element. - Including the second filtering material in an amount ranging from 35% to 55% by weight of the total weight of the mouthpiece or filter element.

[0030] In certain embodiments, the mouthpiece or filter element is - The first filtering material is used in an amount ranging from 48% to 52% by weight of the total weight of the mouthpiece or filter element. - Including the second filtering material in an amount ranging from 52% to 48% by weight of the total weight of the mouthpiece or filter element.

[0031] In certain embodiments, the mouthpiece or filter element is - The first filtering material is used in an amount ranging from 58% to 62% by weight of the total weight of the mouthpiece or filter element. - The second filtering material is included in an amount ranging from 42% to 38% by weight of the total weight of the mouthpiece or filter element.

[0032] According to one embodiment, the mouthpiece or filter element has a length in the range of 50 mm to 160 mm, preferably 120 mm, and preferably has a pressure drop in the range of 20 mmWg to 1200 mmWg, preferably 100 mmWg to 500 mmWg, preferably 280 mmWg to 320 mmWg, preferably 290 mmWg to 310 mmWg, and preferably 295 mmWg to 305 mmWg, when measured according to CORESTA Recommended Method N°41 (June 2007).

[0033] A second aspect of the present invention relates to articles such as smoking articles or aerosol delivery articles, which include a mouthpiece or filter element according to the first aspect. [Brief explanation of the drawing]

[0034] Other features and advantages of the present invention will become clearer from the following detailed description of certain non-limiting examples of the invention illustrated by the accompanying drawings. [Figure 1] This represents a smoking article having a mouthpiece or filter element according to the present invention. [Figure 2] Figure 1 shows the mouthpiece or filter element of a smoking item. [Figure 3] This describes a simplified method for manufacturing a mouthpiece or filter element according to the present invention. [Modes for carrying out the invention]

[0035] Figure 1 shows item 100, which in this example is a smoking item, i.e., a cigarette. - Mouthpiece or filter element 110, -Includes tobacco rod 120.

[0036] Typically, article 100 may be an elongated element along its longitudinal axis. - A diameter in the range of 4mm to 12mm, preferably in the range of 5mm to 10mm, preferably in the range of 7mm to 9mm, or in the range of 5mm to 7mm, The length may be in the range of -30mm to 130mm, preferably in the range of 70mm to 100mm, or in the range of 100mm to 130mm, or in the range of 110mm to 125mm, or in the range of 25mm to 60mm, or in the range of 30mm to 50mm.

[0037] In this case, article 100 may have a cylindrical or circular shape, but other shapes are also possible. Article 100 may be a smoking article known as a conventional (combustible) cigarette, as in this example, but article 100 may alternatively be a non-combustible heated product, a heated tobacco product, etc.

[0038] The tobacco rod 120 may contain cut filler and / or reconstituted tobacco and / or impregnation medium to generate an aerosol or smoke when heated and / or burned.

[0039] Figure 2 shows only the mouthpiece or filter element 110. The mouthpiece or filter element 110 is -A filtering core 111 is arranged to provide a channel for aerosols and / or smoke generated from the tobacco rod 120 and delivered to the user, -Includes a wrapper 114 surrounding the filtering core 111, Filtering core 111 is, - The first filtering material 112, -Includes a second filtering material 113.

[0040] In this example, the first filtering material 112 may be a sheet or strip of paper, preferably airlaid paper, preferably airlaid paper made of cellulose, preferably 60 g / m². 2 Having a grammage of ±10%, the paper sheets or strips are preferably crimped to exhibit longitudinal folds spaced approximately 1 mm ± 20% apart. Such airlaid paper may be supplied by McAirlaid under the name Genia paper.

[0041] In this example, the second filtering material 113 may be provided as a crimped tow made of cellulose acetate having optionally 10% by weight ± 10% of a plasticizer in the mouthpiece or filter element, the tow having 6 denier ± 10% filament denier and 17,000 denier ± 10% total denier. Such a cellulose acetate tow can be found in reference no. (specification) 6.0Y17 DW.

[0042] In this example, the first filtering material 112 and the second filtering material 113 can be randomly distributed within the filtering core 111. Preferably, the first filtering material 112 is never adjacent to the wrapper 114, i.e., the second filtering material 113 is placed between the wrapper 114 and the first filtering material 112. This ensures that the outer diameter of the mouthpiece or filter element 110 is free from dents, wrinkles, and defects in roundness.

[0043] In this example, the mouthpiece or filter element 110 is - The first filtering material 112 is used in a range of 45% to 65% by weight of the total weight of the mouthpiece or filter element. -The second filtering material 113 may be included in an amount ranging from 35% to 55% by weight of the total weight of the mouthpiece or filter element.

[0044] In a particular embodiment, the mouthpiece or filter element 110 is: - The first filtering material 112 is in a range of 48% to 52% by weight of the total weight of the mouthpiece or filter element, -The second filtering material 113 may be included in an amount ranging from 52% to 48% by weight of the total weight of the mouthpiece or filter element.

[0045] In a particular embodiment, the mouthpiece or filter element 110 is: - The first filtering material 112 is used in a range of 58% to 62% by weight of the total weight of the mouthpiece or filter element. -The second filtering material 113 may be included in an amount ranging from 42% to 38% by weight of the total weight of the mouthpiece or filter element.

[0046] Rapper 114, -20g / m 2 ~33g / m 2 In the range of 23 g / m², preferably 23 g / m² 2 ~30g / m 2 Weight within the range, and / or The paper may be provided having a porosity in the range of -2400 CU to 24000 CU, preferably in the range of 5000 CU to 8000 CU. Typically, the wrapper 114 surrounds the filtering core 111 and is bonded in the overlapping region.

[0047] Figure 3 shows a simplified process for manufacturing the mouthpiece or filter element 110.

[0048] The first branch A of the process processes or transports the first filtering material 112, the second branch B of the process processes or transports the second filtering material 113, the third branch C of the process processes or transports the wrapper 114, and the fourth branch D of the process processes the rod making operation.

[0049] In detail, the first filtering material 112 is supplied as a jumbo roll on the machine ("rod making machine") and unwound or unfolded at position A10.

[0050] The unfolded strip of the first filtering material 112 is then transported to a strip crimper A20, which has two rollers, each having grooves and ribs that interpenetrate with the grooves and ribs of the other roller. The interpenetration can be adjusted, and by passing the strip of the first filtering material 112 between the two rollers, an embossed paper strip is obtained. In other words, the strip of the first filtering material 112 between the two rollers of the strip crimper A20 exhibits folds having, for example, a pitch of 1 mm ± 20%.

[0051] The first branch of the process may also include a cutting tool (cutting roller or cutting disc) for adjusting the width of the strip of the first filtering material 112. For example, the width of the strip may be in the range of 35 mm to 65 mm. In a particular example, the width is 40 mm ± 2 mm, and in another particular example, the width is 60 mm ± 2 mm.

[0052] The second branch B of the process begins with a pickup B10 where the second filtering material 113 is collected for a bale of cellulose acetate tow. The tow is then transported to a tow crimper B20, which has two pairs of rollers for crimping the tow of the second filtering material 113.

[0053] A third branch C of the process includes an unwinder C10 for unwinding the roll of wrapper 114 in a known manner.

[0054] The fourth branch D of the process begins with the molding member D10 receiving the crimped strip of the first filtering material 112 and the crimped tow of the second filtering material 113. The molding member may be a funnel having a converging shape and an insertion section for gradually receiving the crimped strip of the first filtering material 112 and the crimped tow of the second filtering material 113. To ensure proper compression of the material, an air jet or air nozzle may be positioned inside or around the molding member D10. This structure ensures that the crimped strip of the first filter material 112 and the crimped tow of the second filter material 113 are distributed randomly and uniformly in the available space to guarantee reproducible properties of the mouthpiece or filter element 110.

[0055] When the crimped strip of the first filtering material 112 and the crimped tow of the second filtering material 113 are gathered through the passage of the molding member D10 and compressed together, the materials pass through a rod-making section D20, typically comprising a belt and garnish, to gradually form a wrapper surrounding the gathered crimped strip of the first filtering material 112 and the crimped tow of the second filtering material 113. The wrapper, pre-bonded in the overlapping areas, is wrapped around itself and heated to provide adhesion. The adhesive may include polyvinyl acetate adhesive and / or hot melt adhesive.

[0056] A continuous rod of wrappers surrounding a mixture of filtering materials then passes through cutter D30, which cuts the rod into filtering sections, for example, 120 mm in length. These 120 mm filtering sections can later be recut to provide mouthpieces or filter elements for components of the composite rod.

[0057] We conducted several tests using the following 120mm long filtering section as an example. - The first filter 112 has a mass of 60 g / m 2It is a cellulose paper (Genia paper made by McAirlaid) with a thickness of 0.58 mm. - The second filtering material 113 is cellulose acetate tow having 6 denier filament denier and 17,000 total denier. -The total weight of the 120mm length filtering section is 0.802g. - The weight of the first filtering material 112 is 0.4464g, which is 62% of the total weight of the filtering section with a length of 120mm. - The weight of the second filtering material 113 is 0.2805g, which is 35% of the total weight of the filtering section with a length of 120mm. - The weight of the plasticizer added to the second filtering material 113 is 10% by weight of the total weight of the filtering portion with a length of 120 mm. - The wrapper is made of paper with a width of 24.5 mm and a porosity of 6000 CU.

[0058] The test section had an outer circumference of 21.81 mm and exhibited a pressure drop of 301.99 mmWg.

[0059] A reference sample was manufactured that contained only the second filtering material 113 (cellulose acetate) as the filtering material. - The second filtering material 113 is cellulose acetate tow having 6 denier filament denier and 17,000 total denier. -The total weight of the 120mm length filtering section is 0.6328g. - The weight of the second filtering material 113 is 0.507 g, which is 80% of the total weight of the filtering section with a length of 120 mm.

[0060] The reference section had an outer circumference of 21.83 mm and exhibited a pressure drop of 300.81 mmWg.

[0061] The sensory evaluation was conducted as follows: #Panelists: 14 Tobacco column: Sampoerna Mild

[0062] Descriptive test: The panelists compared cigarettes with two different filters and scored each cigarette based on identified sensory attributes (smoothness, sweetness, ease of smoking, hay-like, woody, bitterness, dryness, and irritation).

[0063] Compared to the reference sample, the test sample (containing 62% by weight of a first filtering material 112-cellulose paper and 35% of a second filtering material 113-cellulose acetate) was able to provide similar flavor delivery to the reference sample (containing only cellulose acetate filtering material), along with improvements in irritation and bitterness.

[0064] Furthermore, it should be noted that the test section having the filter according to the present invention requires less cellulose acetate material (up to a 45% reduction in the weight of cellulose acetate). Moreover, the first filtering material 112 has much better biodegradability, and as a result, the overall impact on the environment is also reduced.

[0065] Naturally, improvements and / or modifications that would be obvious to those skilled in the art may be made, and it will be understood that they remain within the scope of the present invention as defined by the appended claims.

Claims

1. at least, A filtering core arranged to provide a channel for aerosols and / or smoke delivered to the user, The filtering core includes a wrapper, The filtering core, The first filtering material and The second filtering material, A mouthpiece or filter element, including one.

2. The mouthpiece or filter element according to claim 1, wherein the first filtering material constitutes cellulose.

3. The mouthpiece or filter element according to claim 1 or 2, wherein the first filtering material is composed of cellulose in an amount of more than 80% by weight of the first filtering material, preferably more than 90% by weight of the first filtering material, preferably more than 95% by weight of the first filtering material, and preferably more than 98% by weight of the first filtering material.

4. The mouthpiece or filter element according to any one of claims 1 to 3, wherein the first filtering material is composed of cellulose fibers in an amount of more than 70% by weight of the first filtering material, preferably more than 80% by weight of the first filtering material, preferably more than 90% by weight of the first filtering material, preferably more than 95% by weight of the first filtering material, and preferably more than 98% by weight of the first filtering material.

5. The mouthpiece or filter element according to any one of claims 1 to 4, wherein the first filtering material is paper such as airlaid paper.

6. The first filtering material is 35 g / m ２ to 150 g / m ２ , preferably 40 g / m ２ to 120 g / m ２ , preferably 45 g / m ２ to 75 g / m ２ , preferably 50 g / m ２ to 70 g / m ２ in the range of, preferably 55 g / m ２ to 65 g / m ２ , preferably 63 g / m ２ to 57 g / m ２ in the form of a strip or sheet having a basis weight in the range of any one of claims 1 to 5, the mouthpiece or filter element according to any one of claims 1 to 5.

7. The mouthpiece or filter element according to any one of claims 1 to 6, wherein the first filtering material is in the form of a strip or sheet having a thickness in the range of 0.48 mm to 1.20 mm, preferably in the range of 0.48 mm to 0.68 mm, preferably in the range of 0.53 mm to 0.63 mm, and preferably in the range of 0.55 mm to 0.61 mm.

8. The mouthpiece or filter element according to any one of claims 1 to 7, wherein the first filtering material is substantially free of adhesives and / or plastic materials and / or cellulose acetate and / or additives.

9. A mouthpiece or filter element according to any one of claims 1 to 8, comprising the first filtering material in an amount ranging from 20% by weight to 80% by weight of the total weight of the mouthpiece or filter element, preferably in an amount ranging from 25% by weight to 75% by weight of the total weight of the mouthpiece or filter element, preferably in an amount ranging from 30% by weight to 70% by weight of the total weight of the mouthpiece or filter element, preferably in an amount ranging from 35% by weight to 65% by weight of the total weight of the mouthpiece or filter element, preferably in an amount ranging from 40% by weight to 65% by weight of the total weight of the mouthpiece or filter element, preferably in an amount ranging from 45% by weight to 65% by weight of the total weight of the mouthpiece or filter element, and preferably in an amount ranging from 48% by weight to 62% by weight of the total weight of the mouthpiece or filter element.

10. The mouthpiece or filter element according to any one of claims 1 to 9, wherein the first filtering material is in the form of an embossed strip or sheet, and the embossing is preferably a longitudinal fold substantially aligned with the axis of the mouthpiece or filter element.

11. The mouthpiece or filter element according to any one of claims 1 to 10, wherein the first filtering material is in the form of strips or sheets randomly distributed within the filtering core.

12. The mouthpiece or filter element according to any one of claims 1 to 11, wherein the first filtering material is in the form of a strip or sheet folded within the wrapper, and the unfolded strip or sheet has a width in the range of 10 mm to 200 mm, preferably 15 mm to 85 mm, preferably 20 mm to 80 mm, preferably 25 mm to 75 mm, preferably 30 mm to 70 mm, preferably 35 mm to 65 mm, and preferably 38 mm to 62 mm in a transverse direction with respect to the axis of the mouthpiece or filter element.

13. The mouthpiece or filter element according to any one of claims 1 to 12, wherein the second filtering material comprises cellulose acetate.

14. The second filtering material is Filament denier in the range of 1.5 denier to 13 denier, preferably in the range of 3 denier to 9 denier, preferably in the range of 4 denier to 8 denier, preferably in the range of 5 denier to 7 denier, and / or A mouthpiece or filter element according to any one of claims 1 to 13, comprising a toe or fluffy material having a total denier in the range of 9,000 to 55,000 denier, preferably in the range of 10,000 to 24,000 denier, preferably in the range of 13,000 to 21,000 denier, and preferably in the range of 16,000 to 18,000 denier.

15. The mouthpiece or filter element according to any one of claims 1 to 14, wherein the second filtering material is composed of a plasticizer in an amount of 2% to 20% by weight of the weight of the second filtering material, preferably in an amount of 5% to 15% by weight of the weight of the second filtering material, and preferably in an amount of 8% to 12% by weight of the weight of the second filtering material.

16. The mouthpiece or filter element according to any one of claims 1 to 15, wherein the wrapper defines a tube extending outward in the longitudinal direction and / or has a circular cross-section.

17. The mouthpiece or filter element according to any one of claims 1 to 16, wherein the wrapper has a circumference in the range of 15.00 mm to 30.00 mm, preferably in the range of 20.80 mm to 22.80 mm, preferably in the range of 21.30 mm to 22.30 mm, and preferably in the range of 21.60 mm to 22.00 mm.

18. The aforementioned wrapper, 20 g / m ２ ~100g / m ２ In the range of 20 g / m², preferably 20 g / m² ２ ~33g / m ２ In the range of 23 g / m², preferably 23 g / m². ２ ~30g / m ２ Weights within the range, and / or A mouthpiece or filter element according to any one of claims 1 to 17, which is paper having a porosity in the range of 1,000 CU to 32,000 CU, preferably in the range of 2,400 CU to 24,000 CU, and preferably in the range of 5,000 CU to 8,000 CU.

19. The mouthpiece or filter element according to any one of claims 1 to 18, wherein the filtering core is the single channel of the mouthpiece or filter element.

20. The mouthpiece or filter element according to any one of claims 1 to 19, wherein the filtering core comprises the first filtering material and the second filtering material.

21. A mouthpiece or filter element according to any one of claims 1 to 20, having a length in the range of 50 mm to 160 mm, preferably 120 mm, and preferably having a pressure drop in the range of 20 mmWg to 1200 mmWg, preferably 280 mmWg to 320 mmWg, preferably 290 mmWg to 310 mmWg, and preferably 295 mmWg to 305 mmWg, when measured according to CORESTA Recommended Method N°41.

22. An article such as a smoking article or an aerosol delivery article, comprising a mouthpiece or filter element as described in any one of claims 1 to 21.

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