TR201708458T6 - A method of manufacturing a smoking article, a filter and a smoking article. - Google Patents

Abstract

In a smoking article 10, a filter assembly consisting of a first filter section 12 and a second filter section 14 located upstream of this first filter section 12, and for the first filter section 12 can be controlled by the user. There is a ventilation arrangement (17) configured to provide a ventilation level. The resistance shown to gas flow along the length of the second filter section 14 is less than the resistance to gas flow along the length of the first filter section 12, and the resistance to gas flow along the length of the filter assembly remains substantially constant as the ventilation level is changed.

Description

specification A smoking article (10) according to the first embodiment of the invention in figure 1 is pictured. The smoking article (10) is in this example a is a cigarette. However, other smoking products can also be used; such that The term smoking product refers to tobacco, tobacco derivatives, cisirilins tobacco, cigars based on reconstituted tobacco or tobacco substitutes and products such as cigarillos, as well as aerosols such as electronic cigarettes and products based on heating rather than combustion (i.e., in such a way that the substance in the product does not cause combustion. products in which aroma is released by heating) is used. For the convenience of the reader, this description refer to all such products as "smoking products" will be done.

Smoking products such as cigarettes and their forms are often they are named according to: "standard" (normally between 68-75 mm, eg. approx. 68 mm to approx. 72 mm), "short" or "mini" (68 mm) or shorter), "king-size" (normally between 75-91mm, e.g. 79 mm to approximately 88 mm), "long" or "super-king" mm) and ultra-long (normally about 1 10 mm to about 121 mm) At the same time, according to the perimeter of the sections, they are named: "standard" (about 23-25 mm), "wide" (from 25 mm) long), "slim" (approx. 22-23 mm), "semi-slim" (approx. 19-22 mm), less than mm). Accordingly, a king-size, super-sliin format a cigarette, for example, is about 83 mm in length and about 17 mm in circumference will have length. Most consumers prefer standard, king-size cigarettes in the format, i.e. the circumference of 23 to 25 mm and the total Prefers cigarettes 75 to 91 mm in length.

Each of these formats can be produced with different size filters; usually short filters in formats with short length and perimeter used. Filter length is short, around 15 mm in standard formats, in ultra-long, super-slim formats it will be around 30 mm. Fly The paper will be longer than the filter, for example 3 to 10 mm longer.

The smoking products described and described below, and filters can be manufactured in any of the formats mentioned above. they can be. For example, length 70 to 100 mm and circumference 14 to 25 mm, a smoking article can be manufactured.

The terms "behind" and "ahead" herein are used by the user. the main smoke that you inhale when you use the smoking product with reference to the direction of flow (or other aerosols) are related terms.

The smoking product (10) in the example, which is the subject of Figure 1, is similar to tobacco. a source of a smokeable substance and a second filter with a first filter section (12) connected It comprises a filter assembly consisting of a section (14). As a cigarette The source of the smokable is a tube attached to the first filter section (12). it is in the form of a tobacco stick (11). Second filter section (14), first filter It is located ahead of the section (12) and the tobacco stick (1 l). More below a ventilation device as described in detail (17) is under user control for the first filter section (12) Provides a maintainable variable level of ventilation.

Shown against gas flow along the length of the second filter section resistance against gas flow along the length of the first filter section lower than the indicated resistance and the length of the filter assembly The resistance to the gas flow along the ventilation level remains largely constant when changed. second filter Due to the lower gas flow resistance in section (14), in the total resistance to gas flow through the filter assembly the share of the first filter section (12) is larger. second filter As the ventilation to section (14) is increased, it is removed from the filter assembly. a lower resistance pathway is formed for the passing flow and as lower ventilation levels are concerned. resistance experienced by the consumer while breathing, compared to situations statistically significant decrease. Therefore, the first filter lower resistance in the second filter section (14) compared to the the consumer's breathing when the ventilation level is changed. the force of the change in resistance experienced while pulling made by the consumer at the ventilation level by increasing It allows you to perceive the change more clearly and better.

In the smoking article (10), the tobacco rod (11) and the first filter There is a first piece consisting of part (12). Tobacco stick (1 1) with the first filter section (12), attaching the first filter section to the tobacco stick. by means of a coating layer that attaches and consists of end paper. they are attached to each other. To the first filter section with the tobacco stick (11) (12) are cited together as a tobacco unit. thin long tobacco stick The first filter section (12) with (1 1) aligns the longitudinal axis of the smoking article. In a second portion of the smoking article, the second filter section (14) and a movable relative to the first part of the smoking article. bracelet (13). Bracelet, tobacco stick (11) and/or primary filter it is in the form of a tube extending around the section (12). this tube may be cylindrical. The bracelet (13) consists of paper. Second filter section (14) is securely attached to the collar and is fixed. Each of the first and second filter sections 12, 14 is filtration with the coating material encased in it They consist of material and this covering material is paper, for example It can be filter wrapping paper. The first and second filter sections together form the filter assembly. First filter section (12), second filter It is located behind section (14). The second filter section (14) (13) at the mouth end, adjacent to the first filter section (12) and separate available as. Alternatively, the first and second filter sections they can be linked to each other.

The tobacco stick (11) and the first filter section (12) attached to it, as connected elements through the paper (shown) they are defined. A tip sheet, a standard tip sheet or a relatively thick, indented end paper or a cardboard type of end paper.

The smoking article (10) is a vent for the smoking article (10). configured to allow the level of It is equipped with a ventilation device (17). Ventilation device (17), located on the collar (13), behind the second filter section (14). contains one or more secondary ventilation areas (15).

Inside the smoking article, the first filter section (12) one or more primary vents located around area (16) is also found. This is one or more of the first ventilation area (16) eg around the first filter section or around the filtration material of the first filter section they are defined by a layer or layers of coating material.

The ventilation assembly (17) allows it to enter. The terms "behind" and "ahead" the smoke passage occurring along the longitudinal axis of the product (10) are reversal terms; i.e. to a certain element, for example when it is said "ahead" in reference to it, smoking from that element means the person extending towards the mouth end of the product (10).

Ventilation areas (15, 16), vents or air are formed as permeable material. In some embodiments of the invention, The ventilation areas (15) on the collar (13) are exposed When released, airflow enters the body of the smoking article (10).

The second ventilation areas (15) on the collar (13) and the first corresponding primary ventilation around the filter section (12) the body of the smoking article (10) once the areas (16) are aligned. air flow enters. Ventilation areas (15, 16) They are aligned by rotating the first part with respect to the second part. More to put it concretely, the vent is located on the collar (13) controlled by rotation with respect to the first filter section (12) is kept. Ventilation assembly (17) (15) degree of overlap with the first ventilation area (16) a selectable variable that is controlled by setting provides a level of ventilation. Ventilation amount, first and second determined by the degree of overlapping of the ventilation areas based on actual ventilation area. Ventilation level, first for the second piece by piece, for example, for the second piece to the first piece can be selected by selecting a position by rotation relative to

Therefore, the ventilation assembly (17) is largely the second filter. a variable weather, in the part behind the section a variable verb that allows the entry of The ventilation area provides size.

The first filter section (12) and the second filter section (14) are They are made in filtration material. Filtration material both filters In the section, the chitic may be, for example, cellulose acetate kit. first filter The filtration material of the section is homogeneous and independent of it. Additionally, the filtration material of the second filter section is also homogeneous.

The term "homogeneous" used herein means the filtration material it refers to. that each filter section is substantially uniform throughout and in particular, each of the first and second filter sections 12, 14 is uniform in either the longitudinal direction and/or the radial direction. is used to describe. With homogeneous first filter section at least one of the physical properties of the homogeneous second filter section is different.

The first filter section (12) has a gas flow along its length. shows the first resistance value. Length of the first filter section The first filter shows the resistance level against the gas flow through the Specifies the filtration material in the section. against gas flow the resistance shown is along the length of the first filter section (12). the pressure that must be applied to inhale smoke at a certain speed indicates. Instead of the term "gas flow resistance", the term "pressure drop" is also used. can be used. Pressure drop, expressed in water height (mmHZO) can be done. First filter segment per first unit length pressure drop value or gas per first unit length It has a flow resistance value, which is the value of the first filter section. (12) is fixed along its longitudinal axis. per unit length pressure drop value in millimeters, ie in mmHZO/mm Expressed. Pressure drop value per first unit length, determines the filtration material in the first filter section (12).

The second filter section (14) is placed against the gas flow along its length. reveals the second resistance value. Length of the second filter section The second filter level shows the resistance level against the gas flow through the second filter. Determines the filtration material in section (14). second filter Resistance to gas flow along the length of section (14) defines a second pressure drop value. Second pressure drop or second gas flow resistance, length of second filter section (14) Bownca needs to be applied in order to draw smoke at a certain speed. indicates pressure. Gas flow resistance per second unit length (or The pressure drop) is measured longitudinally in the second filter section (14). is largely constant along its axis. The second filter section (14) a pressure drop per second unit length It can be considered as an element in which the filtration material takes place.

According to the features of the present invention, the length of the first filter section 12 Bownca resistance to gas flow is due to the second filter section. (14) from the resistance to gas flow along its length. is big. According to another feature of the invention, the second filter section The weight of the kit (14) is less than the weight of the first filter section (12). is low. The second density in the second filter section (14) It is lower than the first density in the section (12). Optionally, the first pressure drop across the first filter section (12), the second is greater than the second pressure drop across the filter section (14).

One or more that allow selectable ventilation the number of ventilation zones (15, 16), the second filter section (14) they are behind. Filter beyond the ventilation area (15) a relatively low drawdown over the length of the assembly part resistance, change in ventilation level breath made from the mouth end of the smoking article (10) when It provides more play in the total resistance for shooting.

The ventilation assembly (17) is largely located in the second filter section. (14) is located behind it. A smoking productiiiiii (10) Ventilation is made from the mouth end of the smoking article (10). reduces resistance to breathing. air through ventilation inlet, smoking article behind ventilation areas (10) by reducing the volume of air drawn along the length of the section exposed to resistance to gas flow behind ventilation areas It reduces the remaining air volume. air through ventilation It enters the product with almost no resistance and Thus, the total breathing resistance decreases. especially the ventilation air intake through areas (15), ventilation section of the smoking article (10) behind the areas (15) It reduces the effect of resistance against gas flow throughout its length.

Smoking product beyond the ventilation areas (15) (10) the resistance to gas flow along the length of the section effect is not affected by changes made in ventilation.

Second filter located beyond the ventilation areas (15) The relatively low density provided by the lower density in the section (14) gas flow resistance (compared to first filter section (12), filter total shown against gas flow throughout the entire assembly represents the minority in resistance. Alternatively, the second filter the structures of the section (14) from the mouth end of the smoking article (10) The contribution of ballin to the resistance to breathing is relatively less. By comparison, one or more behind the ventilation area (15) the greater the number of sections, the greater the share of the total inhalation resistance. is big. The air inlet is only behind the air inlet area. the effect of pressure drop or gas flow resistance in the remaining section. reduces and has a lower gas flow resistance or pressure drop. The forward section is not affected by ventilation. Therefore, smoking A change in the ventilation of the drinking product (10) for inhalation from the mouthpiece of the drinking product (10) affects a relatively large part of the total resistance. Ventilation the second filter section (14) beyond the fields (15) reducing the density of the smoking product (10) breathing affected by changes in ventilation Increases the ratio of the resistance in the total resistance. second filter The lower density in the section (15), the ventilation increase, the cigarette for inhalation from the mouthpiece of the drinking product (10) Increases the total resistance effect.

As the ventilation level is changed, the mouth of the smoking article (10) The resistance shown against the pull from the tip also changes. Smoking As the amount of air entering the product (10) through ventilation increases, total breathing resistance decreases. in the second filter section (14) relatively low pressure drop or gas flow resistance (for example, relatively can be achieved using low density filter material), in total breathing resistance when ventilation level is increased allows for a relatively large change to occur. Therefore, ventilation level is determined by the user within a certain range. changed as desired, lower in the second filter section (14). smoking as a result of an intense against the mouth-tip of the product (10) resistance also varies within a relatively large range. Another in other words, changes in ventilation level, smoking the resistance encountered when shooting from the mouth end of the product. Emphasizes change. In this way, at the consumer ventilation level perceives the change it has made more clearly and better.

In some examples of the invention, the second filter section is made of 5 mml-IZO/mm. has a lower pressure drop per unit length.

Alternatively, the second filter section, below, values in order per unit length lower than a value selected from has a pressure drop: 4 mmHzO/mm, 3 mmHZO/mm, 2 In some examples of the invention, the first filter segment is more than 5 mmHZO/mm. has a higher pressure drop per unit length.

Alternatively, the first filter section is the values in the row below per unit length higher than a value selected from has a pressure drop: 6 mmH20/mm, 7 mmHzO/mm, 8 In some aspects of the invention, the unit length in the second filter section The pressure drop per head is between 1 and 5 mmHZO/mm and the first pressure drop per unit length in the filter section (12) 5 to 15 It is at a level between mml-IZO/mm. In some examples, the second filter The pressure drop per unit length in the section is less than 5 mmHzO/mm. is low and the pressure per unit length in the first filter section Its head is higher than 5mmHZO/mm. Filter section behind, forward than the pressure drop per unit length in the filter section. has a high pressure drop per unit length. behind filter section greater than any of the sample values specified. has a high pressure drop per unit length and The pressure drop per unit length in the filter section is is lower than any of the sample values.

In some instances, gas runs along the length of the second filter section. resistance to the flow is mentioned in the first filter section. or less than one in 15.

For example, against gas flow along the length of the second filter section the resistance shown is along the length of the first filter section (12). It is at a level between one-two and one-15th of the resistance revealed.

Optionally, the second unit length in the second filter section (14) pressure drop per head, the first unit in the first filter section (12) between one-fifth and one-twelfth of the pressure drop per length level.

In some aspects of the invention, the vent assembly 17, the first filter It is located at the forward end of the section (12). In some examples, ventilation more than 10 mm into the forward end of the first filter section (12). is located in close proximity.

Pressure per unit length in the first and second filter sections filtration forming the drop values, filter sections The physical nature of the material determines (at least partially). first and The second filter segments are both fibrous consisting of chitic fibers. contains material. A filtration consisting of chitic fibers pressure drop per unit length in a given volume or length can be determined by the amount or number of chitin fiber. Tow weight is an indicator showing the amount of chitin fiber in a given volume. is the parameter. Pressure drop per unit length, cross-section of chitin fibers can also be determined by For example, the chitic fibers are X-shaped or Y-shaped. they may have a cross section. Cross section of pressure drop per unit length may also be affected by the field. The lint weight is the fiber in the filter section. It can be considered as an indicator of the density of the material.

The pressure drop per unit length is the effect of the fibers during the manufacturing processes. also with the amount or degree of curling (ie folding) can be determined. Pressure per unit length in filter sections These factors affecting the dream are known and the required unit is Based on obtaining the pressure drop per length, the first and for each of the second filter sections independently of the other they can be selected. Therefore, the first and second filter sections, above one or more of the specified characteristics determined within the framework of a different selection consisting of They contain a filtration material with physical properties.

First and second filter sections, for example as shown above formed or processed in such a way as to have the necessary properties passed and thus different for the first and second filter segments. a filtration that provides pressure drop values per unit length. are manufactured using the material.

In Figure 2, perspective of the smoking article 10 shown in Figure 1 view is pictured. Tobacco stick, as pictured in Figure 2. (11) and the first filter section (12) longitudinally in the collar (13). will allow them to rotate as a single unit about the axis. are available in sizes. a restraining device (not shown), It ensures that the first part and the second part are fixed in the longitudinal axis. and prevents elongation of the smoking article (10). So the first the piece cannot slide in the longitudinal axis relative to the second piece, that is, the ring It cannot be moved in the longitudinal axis relative to the tobacco unit.

Ventilation level to the first filter section (12) for the collar (13) can be selected by specifying an angular position relative to

In some examples, the vents (15) are sized to this angular position. that can be increased non-linearly depending on they are set. Ventilation areas (15), with ventilation level Angular angle of the ring (13) with respect to the first filter section (12) There is a highly linear dependence between they are set to be.

In some aspects of the invention, one or more ventilation area (15), collar (13) relative to the first filter section (12) when rotated, the size relative to the first and second filter sections remains in a fixed position on its axis.

In the said structure of the invention, the second filter section (14) is attached to the collar (13). it is firmly attached and fixed in it. second filter turning the section (14) into the first filter section of the collar (13). (12) causes it to make a corresponding turn.

Different for the second filter section (14) than for the first filter section (12). ventilation in the collar (13) by selecting an angular position covering areas (15) and around the first filter section (12) ventilation areas in the material or filter wrapping paper It is possible to increase or decrease the alignment between (16).

The ventilation level in the smoking article (10) is thus can be increased or decreased.

Figure 3 shows a smoking article according to a second embodiment of the invention. A longitudinal cross-section view of a piece is illustrated. Relating to The general assembly of the product is illustrated in Figures 1 and 2 described above. similar to the example illustrated; with the same reference numbers not specifically cited in the parts shown and below. together, there is no change in the parts shown on the figure. is not the subject.

In the invention structure illustrated in Figure 3, the second filter section (24), an air passage (28) running along the longitudinal axis in the middle is created in this way. Air passage (28) with second filter section (24) tube extending along the longitudinal axis of the smoking article (20) They form a filter section in this way. The second filter section (24), with a ring-shaped fibrous filtration material is created. Alternatively, the air passage 28 decentralized within the second filter section rather than in the middle may lie on the longitudinal axis in a pathway. Optionally, the second The filter section consists of a plurality of longitudinal axis extending within it. It can be formed in such a way that there are many air passages.

The air passage (28) runs along the length of the second filter section (24). It reduces the resistance against the flow. Second filter section (24) resistance to gas flow along its length, first filter the length of the section (12) shown against the gas flow in the bow is lower than the resistance.

The dimensions of the second filter section (24) correspond to the first filter section (12) The desired breathing resistance for the second filter section 24 compared to the filter kit properties and what plasticizers such as triacetin are used in the filter kit. It will depend on a variety of factors as well as being added at the level.

However, in the examples described here, the second filter section outer circumference is between 15 and 25 mm, eg 22 mm and 25 mm, or 23.95 mm. air passage (28) the inside diameter is preferably between 1 mm and 7 mm, eg 3 It is at a level between 6 mm and 6 mm, or 4.8 mm.

Perspective of the smoking article shown in Figure 4, Figure 3 view is illustrated. As pictured in Figure 4, the air passage (28) on the longitudinal axis in the middle of the smoking article (24). placed in an elongated manner. Alternatively, the air passage 28 the second filter section, but not in the middle of the second filter section (24). on the longitudinal axis in a decentralized pathway in can stretch. Optionally, the second filter section 24, in multiple air passages running along the longitudinal axis can be created to be found.

In Table 1 below, a conventional product, "Smoking Shown against the breath taking from the mouth of the product 1" the calculated values for the resistance and compared to this conventional product, mouth of "Smoking Product 2", an example of the invention pertaining to the resistance to exhalation from the tip The calculated values are shown. Each of these smoking products in both, a filter with a total length of 27 niin and the mouth of the filter A device that provides air entry from a point 16.5 mm from the tip. There is a variable ventilation system. The filter in question is first and second filters axially aligned with each other consists of parts. The filter section at the mouth end (secondary filter 8 m long, filter section at the tobacco tip (first filter section) is 19 mm long. These smoking products both have a breathing resistance of 43.43 mm H2O. There is an identical tobacco stick with (pressure drop).

The first and second in the conventional filter of Smoking Product 1 at the level of approximately 5 mmHZO/mm in both filter sections pressure drop per unit length that is substantially uniform has. Pressure drop in the first filter section with a length of 19 mm At 85 mmHZO, the pressure in the second filter section of 8 mm in length Its head is 40 mmHZO.

In Smoking Product 2, an exemplary embodiment of the invention, the second filter section, filter with a length of 8 mm at the mouth end of the filter There is a pressure drop of 8 mmHZO, which constitutes the It is a filter section. Therefore, in this section, the unit a relatively low pressure of 1 mmHZO/mm per length there is a dream. The first filter section behind it on the other hand, it is a 19 mm long filter section adjacent to the tobacco stick. and a relatively high pressure drop per unit length exhibits. Pressure drop per unit length in this section 7.1 is at the level of 1 mmHZO/mm.

Smoking Product 1 (conventional cigarette Smoking Product 2 drinking product sample) pressure drop pressure drop first filter section (19 mm) 85 135 second filter section (8 mm) 40 8 your filter of ventilation 78.03 68.39 ahead of PD in of the filter of ventilation 46.97 74.61 lagging behind PD in total PD total PD 96.1 1 92.00 total PD pressure drop across the entire product (including the tobacco stick) has not been determined. Pressure drop in Conventional Smoking Product 1, from 132.27 mmHzO to 96.11 mmHZO when ventilation is increased is falling. On the other hand, in the Smoking Product 2 according to the invention, pressure drop, 139.22 mmHzO in the same ventilation level range It varies between 92 mmHZO and 92 mmHZO. Conventional smoking pressure of only 36.16 mmHZO in question Compared to the reduction of the drop, this invention provides 47.22 mmHzO decrease in the level of the product in the smoking product of the invention. When the ventilation level is changed, the pressure drop is reduced to the other product. that a greater change has occurred (i.e. from the tip of the mouth) than that there is a more variable resistance to breathing) is pointing. These results represent the pressure drop of the y-axis, x in Figure 5, where the axis represents the ventilation rate. is pictured.

In some embodiments of the invention, ahead of the ventilation assembly 17 The pressure drop in the extending part is in contact with the mouth end of the smoking product. Distance between vents or more shortened further.

In some examples of the invention, the vent areas are 15 to the mouth end. They allow air entry from a position closer than 1 mm.

Alternatively, the distance from the vent to the mouth is 14 mm, 13 mm can be shorter than 12 mm, 1 1 mm or 10 mm.

In Figure 6a, a smoking article according to a third embodiment of the invention. Top view of a blank 30 forming a wrap for is pictured. In Figure 6b, the blank (30) shown in Figure 6a of a stick product to which the smoking article is formed by applying (32) is illustrated in top view. Blanki (30) containing cigarette The drinking product is substantially the same as the product described above. has functions. Unless otherwise stated, in the same arrangement and in the same There are parts with functionalities.

Blank (30) can only handle bar product (32) along its entire circumference. It is adjusted to fold and wrap twice. Blank (30), rod to fully cover the perimeter around the product (32) It forms two extending layers and an inner layer and an outer layer. made up of areas.

Blank (30) is movable and movable in a channel (36) in such a way as to keep ventilation under control and limit movement. a control element 34 configured.

The control element 34 is on the circumferential axis within a limited range. can be moved. The control element 34 is a first collision surface. and a second collision surface. This is the first The collision surface and the second collision surface of the control element (34) the channel (36) extending on the circumferential axis in which it can be moved. They form their nerves.

The control element 34 is in the direction of movement of the control element. located at its edges, that is, at the peripheral boundary of the control element (34) define the first and second wiper surfaces 34a, 34b. First control between the collision surface and the second collision surface of the first and second limiting surfaces (34a, 34b) of the member (34) contact of the first and second parts of the smoking article is the factor limiting their return.

The first and second limiting surfaces 34a, 34b are they extend at a certain angle with respect to the longitudinal axis. first and second The collision surfaces are also aligned to the longitudinal axis of the smoking article. at a certain angle relative to the control element and/or the axis of movement of the control element. They extend at a certain angle relative to it. First and second collision surfaces, they lie at the same angle as the first and second limiting surfaces 34a, 34b and/or have a shape that complements their shape.

Blank (30) includes first and second spacers (38a, 38b).

The first and second spacers (3 8a, 38b) are interconnected to the bar products. can be attached directly without a middleman and surround them they are configured to wrap. First and second spacing The function of sections (38a, 38b) is an optional multiple ensuring a correct radial distance between multiple indexing surfaces and thus enabling indexing. first and the second spacers (3 8a, 38b) are aligned with each other in the longitudinal axis. are spaced apart.

The control element 34 is placed in one of the intermediate sections 38a, 38b. It is configured to be placed directly on it.

The control element can be easily moved on the control element. spacer that provides a substantially flat outer surface It is configured to be moved over section 38a.

Referring to Fig. 6b , within the bar product 32, the above-described a tobacco stick (11) similar to the one and the There are first and second filter sections (40, 42) located downstream.

The second filter section 42 is based on the second embodiment of the invention. substantially similar to the second filter section (24) described as a tubular filter section, the first filter section 40 and beyond the tobacco stick (11), at the mouth of the smoking article takes place. The first filter section (40), the second filter section (42), and the tobacco It is located between the bar (l 1). Blank (30) stick product (32) when wrapped around it, the spacer is connected to the control element (34). provides a gap between the first filter section (40). First The filter section 40 optionally has a first indexing surface. (40a) defines and therefore a flat surface for the control element does not provide.

The first and second spacers 38a, 38b are optionally a they are connected to each other by the interconnection (44). First and second spacing sections 38a, 38b, two layers formed by the first blank 30 They extend on the circumferential axis. Interconnect (44), first blank (30) while wrapping the leading edge, ie the bar product (32) with the blank (30) the first on the blank that begins to wrap around the bar product. adjacent to the point.

When wrapping the first blank (30) and the bar product (32), first longitudinal linkage (44) and spacers (38a, 38b) areas adjacent to the interconnect on the axis, for example an adhesive with the help of which they are attached to the rod product. Interconnect (44), this is the first a single integral field to the blank (30) stick product (32) in step allows it to be attached to it. Thus, the spacing sections (38a, 38b), which must be attached separately to the rod product (32). long thin sections of coating material independent of each other They are attached not as an integral surface, but as an integrated surface. Therefore the front edges of the spacers 38a, 38b to each other. bonding is done at the first contact between the blank (30) and the bar products. provides a more efficient structure.

Interconnect (44), intermediate in circumferential axis relative to the leading edge of the blank it has a trailing edge 44a located at the other end of the connector 44 .

The intermediate link trailing edge 44a is the first and second spacer sections. (38a, 38b). Interconnect trailing edge (44a), smoking It extends at a certain angle with respect to the longitudinal axis of the product.

The control member 34 consists of a support portion 46 located in the blank 30. is created on it. The control element (34) is the part to which it is attached. It constitutes a region extending outward on the longitudinal axis.

Therefore, the first and second limiters of the control element 34 surfaces (34a, 34b) of the section to which the control element 34 is attached. they extend outward on the longitudinal axis. Support division (44), with breakable connections to the first and second spacers it is attached. These frangible connections extend around the circumferential axis. perforated lines. The support portion 46 is the part of the smoking article. lying down to traverse the circumference exactly once For example, it creates a tube. Control element as part of this tube The support section 46 optionally includes a second indexing surface. (48) supports. This second indexing surface, optionally, a ledge support unit (50) attached to the support portion (46) constitutes a protrusion (48) formed on it. This protrusion (48), will extend between the first and second intermediate sections (38a, 38b) and to be associated with the optional first indexing surface (40a) is configured.

The support section 46 has a support section leading edge 46a.

Support portion front edge 46a, support portion 46 is the starting point that is first wrapped around the product (32). Support section leading edge 46a to the longitudinal axis of the smoking article. The rear edge 46b of the support portion 46 is the smoking article. It extends almost parallel to its longitudinal axis.

Interconnect trailing edge (44a), support section leading edge (46a), and the first and second spacer sections 38a, 38b, one in blank 30 are the elements that define the opening (52). This opening (52), support It provides a range in which section 46 can be moved.

In some examples, the aperture 52 is the peripheral part of the control element 34. a circumferential greater than the length that it can be moved on the axis has length. Therefore, the interconnect trailing edge (44a) does not constitute an element that determines the range of motion of the element (34).

In the region of the blank (30) forming the inner layer, for example, the first thinning A ventilation area 54 is provided on section 38a. Some in the examples, this vent area 54 consists of a single hole.

Alternatively, this ventilation area (54) can be combined separately from each other. It can also consist of a very permeable area or a hole. These holes are fore They can be formed by electroperforation (EP).

The control element 34 ensures that the ventilation in the smoking article It also has an additional function to keep it under control.

To put it in concrete terms, the control element 34 is one or more optionally over a larger number of vents smoking because it is configured to close has direct control over the airflow of its product.

The control element 34 is adjacent to the radial axis of the smoking article. one or more of an inseparable part of Configurable so that the ventilation can be moved over the area is done. The control element 34 is a substantially airtight material, especially airtight paper. Control The element 34 is one or more of the smoking articles. Configured to cover the ventilation area and from an area enclosed by the control element 34 to the smoking article air cannot enter. Control element, first and second limiting surfaces It ensures that air does not pass through the area between (34a, 34b). First and the second wiper surfaces 34a, 34b define both the rotation limits and the amount of covered or uncovered ventilation space. Therefore, the control element 34 is a part of a ventilation area. the ventilation level directly by covering the part to control and to prevent smoking product first and second Maximum and minimum ventilation of the relative movements of the parts a two-way function for delimiting between levels has.

In some aspects of the invention, an additive in the smoking article The ventilation area 56 is further provided. This additional ventilation area (56) for example, it may be located in the first filter section (40). ventilation area (54) will be at least partially aligned with the additional ventilation area (56) is set in . Additional ventilation area 56, for example an environmental multiple separate lines arranged in a line extending along the axis. consists of ventilation area or hole. Additional ventilation area (56) can be formed with a laser. Generally, the ventilation one or both of the fields (54, 56) consists of ventilation area or hole.

In Figure 7a, a smoking cigarette according to a fourth embodiment of the invention Top view of a blank 60 forming a wrap for the product is pictured. Blankin (60) shown in Figure 7b, Figure 7a longitudinal cross section of a smoking article (62) to which it has been applied view is illustrated. Smoking product containing blaiiki (60) (62) has substantially the same functions as the product described above. has. Unless otherwise stated, they have the same arrangement and the same functions. parts are available.

Referring to Fig. 7b, the above-described structure of the bar product 62 a tobacco stick (11) similar to the one and the There are first and second filter sections (12, 14) located downstream.

The second filter section (14), the first filter section (12) and the tobacco It is located at the mouth end of the smoking article, ahead of the rod (11).

The first filter section (12), the second filter section (14) and the tobacco It is located between the bar (11). The first filter section (12), a cut A first piece (12') and a second piece (12") through (12") separated and, thanks to said cutout (12"'), the first filter section The first part (12') moves relative to the second part (12"). can be carried.

Blank (60), strip product (62) twice over the entire circumference. it will fold and wrap, and in the example in question it will only fold twice. is set to wrap. In the blank (60), surround the rod product (62). a first portion 60a surrounding and forming an inner layer, and a first a second layer surrounding portion 60a and forming an outer layer. section (60b). Thus, the blank (60) indicates that the bar product (62) two layers extending around the perimeter forming an inner layer and an outer layer. consists of areas (60a, 60b).

In the first section (60a) of the blank (60), the second filter section (14) and connected to the first part (12') of the first filter section (12), and hence the second filter section (14) and the first filter section (12) a first end portion 60a' connecting the first portion 12' is found. In the first part (60a) of the blank (60), the first filter a second end portion connected to the second portion (12") of the section (12") (60a") The second part of the blank (60) (6%), a cut (61) a first part 60b and a second consists of part (60b").

Blank (60) extends on the first portion (60a) of the circumferential axis. movable in the duct (66) and controlling the ventilation. which is configured to keep it under a control element (64).

The control element 64 is on the circumferential axis within a limited range. can be moved. The control element 64 is a first collision surface. and a second collision surface. This is the first The collision surface and the second collision surface of the control element 64 the channel (66) extending on the circumferential axis in which it can be moved. They form their nerves.

The control element (64) is located in the direction of movement of the control element (64). located at the edges of the control element (64), that is, at the peripheral boundary of the control element (64). define the first and second limiting surfaces 64a, 64b. Control of the first and second limiting surfaces 64a, 64b of the element 64 the first impact surface of the channel 66 extending in the circumferential axis and contact of the second impact surface, the smoking article's first and is the factor that limits the rotation of the second parts relative to each other.

The first and second limiting surfaces 64a, 64b are they extend at a certain angle with respect to its longitudinal axis. first and second The collision surfaces are also aligned to the longitudinal axis of the smoking article. at a certain angle relative to the control element and/or relative to the axis of movement of the control element. they extend at a certain angle. First and second collision surfaces and lie at the same angle as the second limiting surfaces 64a, 64b and/or have a shape that complements their shape.

In a longitudinal motion restriction device 65, the first and second to move between the limiting elements 68a, 68b there is a sliding element (67) which is adjusted. Sliding element (67), first and second restraint members 68a, 68b It is connected by a connector (67°, 67”). This breakaway joint (67°, 67”) is a perforated line running along the circumferential axis. Blankin slipper element (67), control element (64), first and second constraints from the elements 68a, 68b and the channel 66 extending in the circumferential axis. The part formed completely encompasses the environment around the smoking product. For example, it forms a tube by stretching over it once. slipper element 67 with the first portion 60a' of the first portion 60a of the blank together to the first part (60b') of the second part (6%) of the blank (60) is connected, and therefore, the second portion 60a of the first portion of the blank 60 part (60a") and the second part (12") of the first filter section (12). according to the first part 60a' of the first part 60a, the second filter part with the first piece (12') of the first filter section (12) and the first filter section (12) it moves.

The second part (60b) of the blank (60), which forms the outer layer, a ventilation area 69' at a position 69 above it.

In some examples, this ventilation zone 69' consists of a single hole.

Alternatively, this ventilation area 69' may be It can also consist of a very permeable area or a hole. These holes are fore They can be formed by electroperforation (EP). ventilation area The channel (69') is wrapped around the blaiik (60) bar product (62). The shape that aligns with (66) is adjusted.

The control element (64) ensures that the ventilation in the smoking article It also has an additional function to keep it under control.

To put it in concrete terms, the control element 64 is one or the other. optionally blocking more ventilation zones smoking because it is structured to has direct control over the ventilation of its product.

The control element 64 is adjacent to the radial axis of the smoking article. one or more of an inseparable part of co-finished so that it can be moved according to the ventilation area is done. The control element 64 is a substantially airtight material, especially airtight paper. Control element 64, the ventilation area 69' of the smoking article and the lower configured to be moved between the bar product (62) and the cigarette is removed from the channel (66) blocked by the control element (64). air cannot enter the drinking product. Koiitrol element, first and second air from the area between the wiper surfaces (64a, 64b) make sure it doesn't pass. First and second limiting surfaces 64a, 64b both the turning limits and the covered or uncovered They determine the amount of ventilation space.

Thus, the control element 64 is a part of a ventilation area. direct ventilation level by covering the person control and smoking product first and second Maximum and minimum ventilation of the relative movements of the parts a two-way function for delimiting between levels has.

In some embodiments of the invention, the first filter section (12) decomposes the aroma botanically. contains in the form of particles. But the first filter section (12), other forms of aroma behind the ventilation area 69', eg one or more capsules, a thread loaded with aroma, filter aroma substance dispersed in chitin, flavor substance impregnated a coating material containing particles or an aromatic substance may also contain. The level of ventilation in the smoking article (10), of smoke passing through the first portion of the smoking article (10). entering the smoking article (10) through the ventilation area (69'). determines the dilution level with air. Therefore, ventilation level of aromatic smoke passing through the region where the aroma is found. entering the smoking article through the ventilation area (69') It also determines the dilution level with aroma-free air. Smoking The aroma level in the product can be increased or decreased in this way.

In some aspects of the invention, variable ventilation at the blank (60) an additional vent at a position (63) ahead of the assembly (69') area (not shown). This additional ventilation area, for example separated from each other, arranged in a line running along a circumferential axis consists of multiple vents or holes. Additional the ventilation area can be created with a laser. Generally speaking One or both of the ventilation areas are separated from each other. consists of multiple ventilation areas or holes. Additional ventilation area, the variable provided by the ventilation area (69') a fixed minimum unaffected by the amount of ventilation provides a level of ventilation. Additional ventilation space will provide The amount of ventilation required during the manufacture of the smoking article (10) can be determined in advance and, for example, the smoking product in question variable ventilation of smoke and/or other aerosols produced when it is at the minimum level, the part passing through the filter section It may have a value between 5% and 50% of its volume. Variable the ventilation device (69', 66) passing through the filter section of the smoke and/or other aerosols it produces. within a subrange of 0% to 90% by volume of the portion of the For example, in the range of 0% to 50% user-controlled It can be adjusted to provide a ventilation that can be kept.

In Figure 8, the intended use of smoking articles according to the invention a method 100 is schematically illustrated. This method (100), where there is a first gas flow resistance or pressure drop a step (110) based on creating a first filter section step) is included. The first filter section is a known filtration material, for example, cellulose acetate kit. apart from that As a result, a second filter section is produced (digit 120). This is the second The filter section is also made with cellulose acetate kit. second filter The resistance to the gas flow along the length of the section, shown against gas flow along the length of the first filter section is lower than the resistance. Optionally, in the second filter section the pressure drop is lower than the pressure drop in the first filter section.

Different pressures of the first and second filter sections head characteristics, manufacture of these first and second filter sections are determined during In some aspects of the invention, fibrous filtration material, ie kit elements, for the first and second filter sections they are configured in different styles. For example, the second filter section In order to arrive at the characteristics (eg lower density), the first filter to a different diameter value, which is more compressed than for the and it is created with a kit that has a different cut-out shape. First and the pressure drop characteristics of the second filter sections, smoking almost never changes during the use of the product or not modified.

In one of the invention structures, the second filter section is will have a ring-shaped cross section to have yoguiiluga is produced in sequence. First and second filter sections same fiber filtration They are made with different materials and have different properties to exhibit different properties. They are manufactured to have cross-sections. In some examples, the filter The assembly includes both the first filter section and the second filter section. It consists of a single piece that contains it.

First and second filter sections, one or more additional filter assembly of smoking article combined with the component is created (digit 130). The first and second filter sections are Longitudinal Smoking with a source of smokeable substance Other known filter components can also be added with the product. To these for example, a third filter section, for example a particulate a filter section containing the substance (carbon, activated charcoal) or a additional cavity section can be shown. First and/or second filter each of its sections has one or more separate filters It can be considered as a filter section consisting of Filter sections, usually behind the variable ventilation area and They can be considered as the following elements. one behind or more filter segments, one or more It has a higher gas flow resistance than the number of filter sections.

For fastening the components of the smoking article together wrapping material is applied over the smoking article. Paper wrapping material is end paper. Besides that, smoking with a bracelet the drinking product is surrounded. The bracelet is according to the first filter section It is configured to move and optionally, It is securely attached to the second filter section.

The smoking article is discharged from a location behind the second filter section. an optionally variable amount of air inlet configured to allow. For example, paper wrap and/or ventilation holes on the outermost layer of the paper collar is created. The vents are cut with a mechanical cutting tool or are created with a laser. Ventilation holes, wrapping material on the smoking article before assembling (i.e. pre-assembled) punched holes) or optionally smoking product They are created at the time they are joined.

Ventilation in the smoking article, here, into the smoking article from a location behind the second filter section, and in particular Described as ventilation provided over the first filter section has been made. Alternatively, ventilation should be at least partially flow from the second filter section, for example the second filter section It can also be obtained from a position adjacent to the end in the direction it comes from. both according to the second filter section behind the second filter section a position in the direction from which the flow comes, as well as optionally a second a part of the filter section on the side of the flow (for example, the flow a quarter of the filter section in question from the side from which it comes of the air inlet, which includes a second filter section part A ventilation position where the second filter section is as a ventilation position positioned substantially behind is defined.

The properties of the filter sections are from the parameters specified below. can be defined in terms of any: pressure per unit length drop, gas flow resistance per unit length, pressure drop, gas flow resistance, lump weight or density. filter sections, filter section a gas flow that can be evaluated independently of its length They can be defined in terms of the filtration material having a resistance.

The smoking article is a product that provides a basic level of ventilation or may contain more ventilation areas. This ventilation The dimensions of the fields (not shown) are the same.

Throughout this description, in response to various issues in the industry, in order to produce solutions and to make progress in the sector, various inventions to which the invention(s) being described can be applied their structures are described and illustrated by way of example and A superior smoking product is disclosed. in the specification The advantages and features cited are only a representative invention structure. relates to the sample and therefore encompasses the entire invention and/or have no exclusive meaning. These are only so that the features presented in the claims can be better understood and understood. are provided to assist. In this specification advantages offered, invention structures, `Examples, functions, features, The structures and/or other inventive features are defined in the claims. the invention(s) or the languages of the elements described in the claims scope of the invention and/or without leaving your soul, other invention structures can be created and other modifications can be made. will be understood. Various forms of invention, the elements described herein, components, features, parts, bases, tools and so on may contain various combinations of elements, they can consist of or basically consist of them. These that is, to this specification, not presently in the claims but in the future It also includes other inventions which may be included in the claims.

Claims (1)

REQUESTS 1. A filter assembly consisting of a first filter section (12) and a second filter section (14) and containing a second filter section (14) located ahead of the first filter section (12) and a user control for the first filter section (12). comprising a ventilation assembly (17) configured to provide a maintainable level of ventilation; the smoking article (10) comprises a first part and a second part, and the ventilation level can be adjusted for said second part by selecting a position relative to said first part; where the resistance to gas flow along the length of the second filter section (14) is lower than the resistance to gas flow along the length of the first filter section (12) and the resistance to gas flow along the length of the filter assembly remains largely constant when the ventilation level is changed. a smoking article (10). . Smoking according to claim 1, wherein the second crunch weight of the fibrous filtration material in which a first crud weight fibrous filtration material is present in the first filter section (12) and a second crucible filtration material is present in the second filter portion (14) is less than the first crunch weight of the fibrous material. product (10). According to claim 1 or claim 2, where the pressure drop per unit length in the first filter section (12) is greater than 5 mmHZO/mm and the pressure drop per unit length in the second filter section (14) is less than 5 mmHZO/mm smoking article (10). Smoking article (10) according to any one of claims 1 to 3, wherein the resistance to gas flow along the length of the second filter section (14) is lower than said 13, 14 or 15 in the first filter section (12). Smoking article (10) according to any of the preceding claims, wherein the first filter section (12) consists of a first homogeneous filtration material and the second filter section (14) consists of a second homogeneous filtration material. Smoking article (10) according to any of the above claims, wherein the second filter section (14) is separate from the first filter section (12) and/or movable relative to the first filter section (12) so that the ventilation for the first filter section (12) can be controlled. ). There is also a collar (13) configured to be moved with respect to the first filter section (12), the second filter section (14) is fixed in this collar (13), and the position of the collar (13) relative to the first filter section (14) is adjusted to increase the ventilation level. Smoking article (10) according to any one of the above claims, which is replaceable. The smoking article (10) according to claim 7, wherein the collar (13) is rotatable with respect to the first filter section (12) and the ventilation level can be changed by changing the angular position of the collar (13) relative to the first filter section (12). The first filter section (12) has a length of between 5 and 25 mm, the second filter section (14) has a length of between 5 and 25 mm, and/or the ventilation assembly (17) has a length of 6 to 35 mm on the rim of the smoking article (10). The smoking article (10) according to any one of the above claims, wherein it provides air intake from a position located at a distance of between mm. The first and second filter sections (12, 14) contain crimp fibers, and the first filter portion (12) and the second filter portion (14) differ from each other in terms of one or more of the crimp weight, the number of crimp fibers per unit volume, the cross-section of the chisel fibers and the degree of curling. Smoking article (10) according to any one of the preceding claims, from which they differ. Smoking article (20) according to any preceding claim, wherein the second filter section (24) includes at least one air passage (28) extending in the longitudinal axis along its length. The smoking article (20) according to claim 11, wherein the diameter of the air passage (28) is between 1 and 7 mm in length. Smoking article (20) according to any one of the preceding claims, wherein the second filter section (14) consists of a fibrous filtration material having an annular cross-section. Smoking article (20) according to any of the preceding claims, wherein the second filter section (24) consists of a fibrous filtration material extending in the form of a tube, and the air passage (28) extends along a central longitudinal axis running along the length of the second filter section (24). The second filter section (24) comprising a first filter section (12) and a second filter section (24) can be controlled by the user for a filter assembly located ahead of the first filter section (12) and the first filter section (12). comprising a ventilation assembly (17) configured to provide a level of ventilation; comprising a first part and a second part, wherein the ventilation level can be adjusted by selecting a position for said second part relative to said first part; a cigarette in which the resistance to gas flow along the length of the second filter section (24) is lower than the resistance to the gas flow along the length of the first filter section (12) and the resistance to the gas flow along the length of the filter assembly remains substantially constant when the ventilation level is changed a filter for the drinking article (20).