EP3310194B1 - Teleskopische, koaxiale filterzigarette und zugehöriges herstellungsverfahren, filterstabherstellungsmaschine und filterspitzenbefestigungsmaschine - Google Patents

Teleskopische, koaxiale filterzigarette und zugehöriges herstellungsverfahren, filterstabherstellungsmaschine und filterspitzenbefestigungsmaschine Download PDF

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Publication number
EP3310194B1
EP3310194B1 EP16744853.9A EP16744853A EP3310194B1 EP 3310194 B1 EP3310194 B1 EP 3310194B1 EP 16744853 A EP16744853 A EP 16744853A EP 3310194 B1 EP3310194 B1 EP 3310194B1
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EP
European Patent Office
Prior art keywords
tape
filter
pieces
cigarette
section
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EP16744853.9A
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English (en)
French (fr)
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EP3310194A1 (de
Inventor
Ivan Eusepi
Luca Federici
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GD SpA
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GD SpA
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/04—Tobacco smoke filters characterised by their shape or structure
    • A24D3/041—Tobacco smoke filters characterised by their shape or structure with adjustable means for modifying the degree of filtration of the filter

Definitions

  • This invention relates to a telescopic, coaxial filter cigarette and to a method for making cigarettes of this kind.
  • the invention also relates to a machine for making a filter rod suitable for making a telescopic, coaxial filter and to a filter tip attachment machine for making telescopic, coaxial filter cigarettes.
  • cigarette is used to denote a plurality of products or smokers' articles such as, for example, cigars, cigarillos, electronic cigarettes and the like.
  • Cigarettes of known type generally comprise a filter from which the consumer inhales through the mouth and which is connected to a cigarette stick comprising tobacco, for example.
  • Cigarettes of this kind are designed to be variable in length and, if necessary, to also vary cigarette ventilation during use by allowing air to pass through channels not involved in combustion.
  • Known telescopic cigarettes are provided with stopping means for stopping the movement of the telescopic parts in the fully extended position.
  • stopping means are embodied by the pieces of paper wrapped around the outside of the cigarette, creating a perceptible step along the outside surface.
  • This step besides negatively affecting the appearance of the cigarette, also negatively affects their production, in particular during handling and packing, and use, in particular when they are being taken out of the packet.
  • the main technical purpose of this invention is to propose a cigarette, a method for making the cigarette, a machine for making a filter rod and a filter tip attachment machine, which are free of the above mentioned disadvantages.
  • the aim of this invention is to provide a cigarette, a method for making the cigarette, a machine for making a filter rod and a filter tip attachment machine, which keep the outward appearance of the cigarette unchanged to obtain a constant outer size.
  • the technical purpose and aims specified are achieved by a cigarette according to claim 1 and by a method for making the cigarette according to claim 21.
  • the technical purpose and aims specified are also achieved by a machine for making a filter rod according to claim 12 and a filter tip attachment machine according to claim 19:
  • the cigarette of this invention is a specific example of a smokers' article which may be embodied in several ways.
  • the cigarette 100 is substantially cylindrical in shape and has a longitudinal axis 101, shown by way of example in Figure 4 .
  • the cigarette 100 comprises a filter 102 of a telescopic, coaxial type and a cigarette piece 103 connected to the filter 102.
  • the filter 102 has a first end 102a which is joined to one end of the cigarette piece 103 and an end 102b on the side opposite the cigarette piece 103 and intended to be placed in a smoker's mouth.
  • the cigarette piece 103 is of substantially known type and will not be described in detail.
  • the cigarette 100 comprises means for connecting the filter 102 to the cigarette piece 103.
  • the connecting means comprise, for example, a connecting sleeve 104, described in detail below.
  • the sleeve is preferably wrapped around the filter 102 and the cigarette piece 103 to connect the two together.
  • Each filter 102 comprises an inner portion 105, which is elongate in shape, and an outer portion 106, which surrounds the portion 105.
  • the inner portion 105 may be made of a first material, preferably a filter material.
  • the inner portion 105 may be made in the form of a tube, without filter material, to define an intake channel.
  • the outer portion 106 comprises a second material, preferably a filter material.
  • the portions 105 and 106 extend along the filter 102 (from the first end 102a ton the second end 102b of the filter 102) in such a way that the portion 105 is inside the portion 106.
  • the first and second materials may be identical or they may differ in some respects.
  • the first and second materials may differ in colour and/or flavouring and/or filtering capacity.
  • the outer portion 106 is divided, along a cutting line "T", into at least two sections located one after the other along the axis 101.
  • the first section 106a of the outer portion 106 is located at the first end 102a of the filter and is attached to the cigarette piece 103.
  • the second section 106b of the outer portion 106 is located at the second end 102b of the filter.
  • the second section 106b is slidable along the axis 101 relative to the first section 106a between a drawn-in position, where it is close to the first stretch 106a ( Figures 2 and 4 ), and an extended position, where it is at a certain distance from the first section 106a ( Figures 3 and 5 ).
  • the inner portion 105 of the filter defines a sliding guide for the second section 106b of the outer portion 106 during the passage from the drawn-in position to the extended position and vice versa.
  • stopping means are illustrated in detail in Figures 4 and 5 and comprise respective abutment elements located at a certain distance "L” along the axis 101 and respectively fixed to or associated with the inner portion 105 and the outer portion 106 (or vice versa).
  • the axial distance "L” between the two abutment elements defines the stroke "C” of the second section 106b of the outer portion 106 of the filter between the drawn-in position and the extended position.
  • the numeral 107 denotes a first abutment element, closer to the second end 102b of the filter, and the numeral 108 denotes a second abutment element, closer to the first end 102a of the filter.
  • the first abutment element 107 is located at the second end 102b of the filter and the second abutment element 108 is located at an intermediate position along the axis 101 at the distance "L" from the first abutment element 107.
  • the two abutment elements 107 and 108 are respectively fixed to or associated with the inner portion 105 and the outer portion 106. More specifically, in the second embodiment illustrated in Figures 4 and 5 , the first abutment element 107 is fixed to or associated with the inner portion 105 and the second abutment element 108 is fixed to or associated with the second section 106b of the outer portion 106.
  • Each abutment element 107, 108 may consist of a piece extending around the axis 101.
  • the inner portion 105 comprises an inner intermediate sleeve 109 wrapped around the first filter material and fixed thereto for example by a layer of adhesive, not illustrated.
  • the corresponding abutment element (first abutment element 107 in Figures 4-5 ) is externally fixed to or associated with the inner intermediate sleeve 109, for example by a layer of adhesive and is facing towards the outer portion 106 of the filter.
  • the outer portion 106 comprises an outer intermediate sleeve 110 wrapped around the second filter material and fixed thereto for example by a layer of adhesive, not illustrated.
  • the corresponding abutment element (second abutment element 108 in Figures 4-5 ) is fixed to or associated with the outer intermediate sleeve 110, for example by a layer of adhesive and is facing towards the inner portion 105 of the filter.
  • the outer portion 106 comprises an outer sleeve 111 wrapped around the second filter material and fixed thereto by a layer of adhesive, not illustrated.
  • the abutment elements 107, 108 are embodied by pieces of continuous tape applied to the respective sleeves or to the respective filter material as described in more detail below.
  • the piece which defines the second abutment element 108 extends also at the first section 106a and, in this section, is fixed, for example by a layer of adhesive 112, also to the inner portion 105, in particular to the inner intermediate sleeve 109.
  • the first section 106a and the inner portion 105 may be joined to each other by pressure, embossing or other methods.
  • the connecting sleeve 104 has a line of weakness 113 running around the axis 101 and defining two portions of the connecting sleeve 104 along the selfsame axis.
  • a first portion 104a is fixed to the cigarette piece 103 and a second portion 104b is fixed to the second section 106b of the outer portion 106 of the filter.
  • the two portions of the connecting sleeve 104 can be separated by the user by applying an axial tensile force on the second section 106b to move it to the extended position.
  • the line of weakness 113 may be positioned at the cutting line "T" which constitutes the dividing line between the first section 106a and the second section 106b of the outer portion 106 of the filter.
  • the line of weakness 113 may be located at a position corresponding to the first section 106a, that is to say, between the cigarette piece 103 and the cutting line "T".
  • the distance “D” between the cutting line "T” and the line of weakness 113 is preferably greater than the stroke "C" so that, in the extended position, the gap between the second section 106b and the first section 106a, corresponding to the annular cavity "A" illustrated in Figures 3 and 5 , is not visible.
  • the second portion 104b of the sleeve slides on the first section 106a.
  • the inner portion 105 of the filter defines a sliding guide for the second section 106b and the first section 106a defines a sliding guide for the second portion 104b of the connecting sleeve 104.
  • the connecting sleeve 104 comprises a perforated zone 114, which defines a high permeability zone suitably located at the annular cavity "A" created between the first section 106a and the second section 106b in the extended position.
  • the connecting sleeve 104 and/or the outer intermediate sleeve 110 and/or the abutment elements 107, 108, if visible, are made in different colours or of different materials from the first or second material and/or the inner intermediate sleeve 109 to indicate to the user when the extended position has been reached.
  • the inner portion 105 may differ in colour from the intermediate sleeve 110 and, if necessary, also from the second material visible at the second end 102b.
  • the filter 102 may have an internal chamber designed to receive an additive.
  • the chamber is preferably located along the cigarette axis 101.
  • the additive is used to flavour the smoke inhaled by the consumer (smoker) and may be in the form, for example, of a capsule, powder, granules, gel, liquid or small piece of flavoured filter material.
  • the additive is of the type whose release is determined by the combustion of the cigarette or by the heat or smoke generated by such combustion.
  • the cigarette 100 may comprise a duct giving access to the chamber in order to add the additive.
  • the duct runs through the filter in a direction transverse to the axis 101 and is preferably rectilinear. Further, the duct is made accessible when the filter is in the extracted position.
  • the internal chamber for receiving an additive at least partly comprises the annular cavity "A" formed between the first section 106a and the second section 106b in the extended position.
  • the connecting sleeve 104 may have an access hole which, in the extracted position, is positioned at the annular cavity "A".
  • the user grips the second stretch 106b of the filter and moves it away from the first stretch 106a, thereby tearing the connecting sleeve 104 at the line of weakness 113. Extracting the second stretch 106b allows varying the length and, where applicable, the ventilation of the cigarette at the moment of use.
  • FIGS 7 , 8a and 8b show two possible embodiments of the cigarette 100 according to this invention.
  • the embodiment of Figure 7 corresponds to the embodiment of Figure 4 but differs from it in that the piece which constitutes the second abutment element 108 does not extend at the first stretch 106a.
  • the adhesive layer 112 (or other materials / processes) attaches directly to each other the inner portion 105 and the outer portion 106, in particular the inner intermediate sleeve 109 and the outer intermediate sleeve 110.
  • the two abutment elements 107 and 108 are located between the inner portion 105 and the first stretch 106a of the outer portion 106. Further, the second abutment element 108 is fixed to the inner portion 105, while the first abutment element 107 is fixed to the first stretch 106a.
  • the second stretch 106b is attached to the inner portion 105 for example by the adhesive layer 112 (or other materials/processes). In this case, the inner portion 105 still acts as a guide for the second stretch 106b sliding relative to the first stretch 106a.
  • either or both the inner intermediate sleeve 109 and the intermediate sleeve 110 are not provided and the abutment elements are glued directly to the material, preferably filter material, or to the tube which may define the inner portion 105.
  • the stopping means, and in particular, the abutment elements 107 and 108 may be embodied in different ways.
  • the stopping means, and in particular, the abutment elements 107 and 108 may be embodied by applying a material in the form of glue.
  • the stopping means, and in particular, the abutment elements 107 and 108 may be embodied by distributing a powder.
  • the stopping means, and in particular, the abutment elements 107 and 108 may be embodied by layers of ink. Furthermore, the stopping means, and in particular, the abutment elements 107 and 108 may be embodied by relief features or embossings. Lastly, the stopping means, and in particular, the abutment elements 107 and 108 may be embodied by cuts or folds. Both in the case of pieces of tape and in the case of added materials or processed features, the abutment elements may, as stated previously, cover the entire circumference around the axis 101 or only one or more arcs.
  • the numeral 1 denotes in its entirety a machine for making a filter rod suitable for making a telescopic, coaxial filter 102.
  • the machine 1 illustrated in Figure 1 comprises a station 2a for processing the first material suitable for making the inner portion 105 of the filter and a station 2b for processing the second material suitable for making the outer portion 106 of the filter.
  • the two stations operate according to known operating methods. More specifically, the machine 1 is suitable for making a filter rod from a first material and a second material. If the inner portion 105 is embodied by a tube, a part of the machine 1 is replaced by a machine for supplying a continuous tube.
  • One possible embodiment of the processing station 2a is illustrated by way of example in Figure 9 and comprises a bale "M" of the first material, preferably filter material.
  • Respective wicks 3 are drawn out from the bale "M” (the term “wick” being used to denote strips of filter material drawn out from the bale “M” and likened to a strip of gauze with reduced transverse dimensions).
  • the wicks 3 are fed along a feed path P1 by means of guiding device of known type.
  • the processing station 2a also comprises a device 5 for treating the material situated downstream of the pneumatic devices 4 and receiving the ribbon "F" in order to plasticize it by means of a plasticizing fluid.
  • the ribbon “F” is then fed towards a conveying device 6 which conveys the ribbon “F” towards a forming device 6a adapted to receive the ribbon “F” and gather it up around its central axis to obtain a tow 7.
  • the tow 7 is associated with a composite tape 8 and made to move along above the composite tape 8 itself.
  • the tow 7 is wrapped in the tape 8 to obtain an inner rod 9.
  • the inner rod 9 comprises an uninterrupted succession at least of inner portions 105 and stopping means, preferably positioned mirror-symmetrically.
  • the tape 8 may be wrapped around the tow 7 by a garniture tongue, labelled 6b in Figure 9 .
  • the inner rod 9 thus obtained is conveyed towards a portion 1b of the machine 1 adapted to terminate the formation of a filter rod.
  • the filter rod comprises an uninterrupted succession of inner portions 105, stopping means and outer portions 106, preferably positioned mirror-symmetrically.
  • FIG. 15 One possible embodiment of the portion 1b of the machine 1 and of the end part of the processing station 2b is illustrated by way of example in Figure 15 .
  • the rod 9 meets an adhesive material applicator device 10 adapted to apply at least strips 11 of adhesive material along the outside surface of the rod 9.
  • the rod 9 may be supported by a centring device 12, preferably located downstream of the applicator device 10.
  • the centring device 12 may comprise longitudinal ribs 13 running parallel to the rod 9 in order to support it between one adhesive strip 11 and another.
  • the processing station 2b may be functionally and structurally similar to the station 2a, so that respective wicks are drawn out from a bale of the second material, preferably filter material, and the wicks are then fed along a feed path P2 by means of guiding devices of known type towards a station for processing the material until a strip 14 of the second material is formed.
  • Figure 15 schematically illustrates the station 2b which brings the strip 14 of the second material to converge with the continuous rod 9. More specifically, as illustrated in Figures 15 and 15b , the strip 14 is conveyed to the mouth 55 of a forming device 6a into which the inner rod 9 is also fed in a position substantially coaxial with its axis.
  • the forming device 6a has the shape of a funnel which progressively reduces the transverse dimension of the strip 14. More precisely, the strip 14 enters the mouth 55 of the device 6a in a direction P2 which is transverse to the direction P1 of the rod 9 and is distributed around the latter.
  • the forming device 6a comprises a funnel-shaped body 53 and a tile-shaped tip 54 positioned with its concavity above the garniture tongue 17.
  • the body 53 is supplied in known manner with air flows, schematically represented by the arrows "A" in Figure 15b .
  • the air flows from an air source not illustrated decisively contribute to distributing the strip 14 uniformly around the inner rod 9 and to feeding the combination of the inner rod 9 wrapped in the second material towards the outlet of the body 53 until reaching the tile 54 and then being wrapped along the garniture tongue 17.
  • the portion 1b of the machine 1 also receives a continuous tape 15, preferably of paper, which is fed along the tongue and progressively wrapped around the inner rod 9 wrapped in the second material.
  • the inner rod 9 enters the portion 1b following the feed path P1
  • the strip 14 enters the portion 1b following the feed path P2
  • the tape 15, if present, enters the portion 1b following the feed path P3 at the garniture tongue 17.
  • the garniture tongue 17 has an inner channel whose transverse cross section changes along the longitudinal extension of the garniture tongue itself, closing on itself in the feed direction along the feed path P.
  • the assembly made up of the rod 9 wrapped in the second material and in the tape 15 runs along the feed path P in the garniture tongue 17.
  • the tape 15 and the strip 14 are wrapped around the rod 9 to form the filter rod 16.
  • the shape of the transverse cross section of the filter rod 16 is determined by the transverse cross section (at the end) of the channel of the garniture tongue 17, preferably circular or helical.
  • the machine 1 also comprises an apparatus 1c adapted to make the composite tape 8.
  • the apparatus 1c comprises feeding means of essentially known type adapted to unwind a continuous tape 19 from a roll 20.
  • the applicator device 21 is configured to cut the pieces 22, at predetermined regular intervals, from a respective tape 23 unwound from a roll 24 and to apply glue on one surface of them by means of a gluing device of known type, not illustrated, in order to form the adhesive layer, not illustrated, by which they are attached to the tape 19.
  • the pieces 22 are arranged at a predetermined spacing "p1" from each other and are configured to make the first abutment elements 107 on each finished cigarette 100.
  • the length "Y1" of each piece 22 along the main longitudinal direction of the tape 19 is equal to twice the length "X1" of the abutment elements 107.
  • the pieces 22 may be made of any suitable material, for example paper or plastic material, or they may comprise metallic material.
  • the tape 19 to which the pieces 22 are glued is intended to make the inner intermediate sleeve 109.
  • the apparatus 1c comprises further feeding means of essentially known type adapted to unwind a further continuous tape 25 from a roll 26.
  • a further applicator device 27 for applying further pieces 28 on the further tape 25.
  • the further applicator device 27 is configured to cut the further pieces 28, at predetermined regular intervals, from a respective tape 29 unwound from a roll 30 and to apply glue on one surface of them by means of a gluing device of known type, not illustrated, in order to form the adhesive layer, not illustrated, by which they are attached to the further tape 25.
  • the further pieces 28 are arranged at a predetermined spacing "p2" from each other and are configured to make the second abutment elements 108 on each finished filter cigarette 100.
  • each further piece 28 has, along the main longitudinal direction of the further tape 25, a length "Y2" greater than twice the length "X2" of the abutment elements 108, and more specifically, equal to twice the length "X2" plus twice the length of the stretch of the abutment element 108 which also extends at the first stretch 106a.
  • the further pieces 28, too, may be made of any suitable material, for example paper or plastic material, or they may comprise metallic material.
  • the further tape 25 to which the further pieces 28 are glued is intended to make the outer intermediate sleeve 110.
  • the tape and the further tape are coupled and superposed in parallel with each other in such a way that the pieces 22 and the further pieces 28 are positioned inside, between the two tapes.
  • the relative position of the two tapes is adjusted in such a way that on each of the finished cigarettes 100, the abutment element 107 and the abutment element 108 are positioned at the distance "L".
  • the composite tape 8 is the result of coupling the tape 19 and the further tape 25 comprising the respective pieces.
  • the apparatus 1c comprises the feed means which unwind the continuous tape 19 from the roll 20.
  • the feed means which unwind the continuous tape 19 from the roll 20.
  • the applicator device 21 and the further applicator device 27 configured like the previous embodiment but adapted to apply both the pieces 22 and the further pieces 28 on the tape 19.
  • applying the pieces 22 to the tape 19 involves applying glue 31 to form an adhesive layer by which each piece 22 is permanently attached to the tape 19.
  • the layer of glue 31 covers the entire surface of the piece 22.
  • Applying the further pieces 28 to the tape 19 involves applying glue 32 on a limited surface, preferably at the centre of the further piece.
  • the glue 32 forms the adhesive layer 112 between the inner portion 105 and the outer portion 106.
  • the numeral 33 denotes a gluing device adapted to apply a layer of glue 34 on the face of the further pieces 28 and suitable for coupling to the further tape 25.
  • the layer of glue 34 is suitable for permanently attaching each further piece 28 to the further tape 25.
  • the layer of glue 34 covers the entire surface of the further piece 28.
  • the further tape 25 is unwound from the roll 26 and is applied in parallel with the tape 19 in such a way that the pieces 22 and the further pieces 28 are positioned inside, between the two tapes.
  • the composite tape 8 is the result of coupling the tape 19 and the further tape 25.
  • the applicator devices 21 and 27 are independent and adjustable independently of each other to allow varying the positions of the pieces and further pieces, setting them apart according to requirements and/or varying their spacing.
  • the inner rod 9 comprising the tow 7 and the composite tape 8
  • Figure 12 schematically illustrates a partial longitudinal cross section of the inner rod 9 where the composite tape 8 is preferably obtained from the apparatus 1c of Figures 10 and 11 .
  • the rod 9 of Figure 12 is suitable for making cigarettes 100 according to the embodiment illustrated in Figures 4 and 5 .
  • Figure 12 also shows the subsequent cutting and incision operations which it will undergo at different stages in the form of a filter piece to indicate the spacing of the elements of the inner rod 9 as a function of how they will be positioned in the finished cigarette. More specifically, the reference "T1" denotes a cutting line which will define the second end 102b of the filter 102 at a subsequent processing stage.
  • the cutting line "T1" lies at each piece 22 and delimits two abutment elements 107. In the subsequent production method, it will correspond to the cutting line which divides a double cigarette into two cigarettes 100.
  • the reference “T2" denotes a cutting line which will define the first end 102a of the filter 102 at a subsequent processing stage.
  • the cutting line "T2" lies at each further piece 28 and defines two abutment elements 108. In the subsequent production method, it will correspond to the cutting line which divides two filter pieces. More specifically, a filter piece 38 is defined between two alternate cutting lines “T2", whilst a filter piece 42 is defined between two consecutive cutting lines "T2".
  • the reference “T” denotes the incision lines which, at each further piece 28, will delimit the first stretch 106a from the second stretch 106b of the filter in the subsequent stages of the production method.
  • the filter rods 16 leaving the machine 1 are fed to a density checking device 35 and after that to a cutting device 36 forming part of a cutting and outfeed station 37.
  • the cutting device 36 is adapted to cut the rods 16 transversely to obtain respective successions of pieces 38 ( Figure 6c ) between two alternate cutting lines "T2".
  • the installation of Figure 1 also comprises, downstream of the cutting and outfeed station 37 with reference to the direction of feed of the continuous rod 16, a conveyor device of essentially known type, for sequentially feeding the filter pieces 38 towards the infeed of a filter tip attachment machine 39 of known type for applying filters to cigarette pieces.
  • the filter tip attachment machine 39 is adapted to receive cigarette pieces 40 sequentially from a cigarette maker schematically represented as a block 41, to divide the cigarette pieces 40 into two pieces 103 of half the length, to move them apart in an axial direction, to divide the filter pieces 38 into two pieces 42 of half the length at the cutting line "T2", to incise them at the incision lines "T”, to axially interpose one pieces 42 between two cigarette pieces 103 and to connect the pieces 103 and 42 to each other with one piece of tape to make a double cigarette which is then divided in half at the cutting line "T1" to make two finished filter cigarettes 100.
  • the pieces 38 correspond to a sequence of four filters 102, each positioned mirror-symmetrically relative to the one adjacent to it.
  • the pieces 42 correspond to a sequence of two filters 102, each positioned mirror-symmetrically.
  • Figure 16 illustrates a portion of a filter tip attachment machine where the filter pieces 38 are placed in a hopper 43 and fed to a first line 44 of drums along which they meet a cutting device 45 which divides them into two pieces 42 along the cutting line "T2" and an incision device 46 upstream of which the pieces 42 incised along the incision lines proceed along the first line 44.
  • the cigarette pieces 40 travel along a second line 47 of drums where they meet a cutting device 47a which divides them into pieces 103 which proceed along the second line 47 and moved axially away from each other.
  • the first line 44 and the second line 47 converge, one filter piece 42 is inserted between two cigarette pieces 103 which have been moved axially apart.
  • a tape 48 crosses an incision station 49 configured to make two perforated zones 114 and two lines of weakness 113 in the tape 48 itself.
  • the tape 48 also crosses a cutting station 50 configured to obtain pieces, not illustrated, which are wrapped around the piece 42 and the two pieces 103 to form a double cigarette which is subsequently divided in half along a third line 51 of drums along which there is a cutting device 52 that operates along a cutting line "T1". Dividing the tape 48 in half produces the two connecting sleeves 104 of the two cigarettes 100 resulting from cutting the double cigarette.
  • Figures 6a-6e illustrate a possible embodiment of a production method for making cigarettes 100 according to this invention.
  • Figure 6a illustrates the step of making the inner rod 9 in which the composite tape 8 is wrapped around the tow 7. This step is preferably carried out in the portion 1a of the machine 1.
  • Figure 6b illustrates the step of making the filter rod 16 comprising the rod 9 wrapped in the second material 14 in the form of a strip 14 which is further wrapped in the tape 15. This step is preferably carried out in the portion 1b of the machine 1.
  • Figure 6b also illustrates the step of cutting along alternate cutting lines "T2" to obtain the piece 38. This step is preferably carried out in the cutting and outfeed station 37.
  • Figure 6c illustrates the step of cutting along the cutting lines "T2" to obtain the piece 42. This step is preferably carried out as a result of passing through the cutting device 45.
  • Figure 6d illustrates the step of incising along the incision lines "T" the tape 15, the strip 14 and the further tape 25 of the composite tape 8 which will constitute an outer portion 106 of the cigarette being made. This step is preferably carried out as a result of passing through the incision device 46.
  • Figure 6e illustrates the step of wrapping a piece of tape 48 around a filter piece 42 and two cigarette pieces 103 to form a double cigarette and the step of cutting along the cutting line "T1" to obtain two cigarettes 100.
  • the reference numerals correspond to those of Figures 4 and 5 , considering the cigarettes 100 substantially finished.
  • the cigarette, the machines and the method according to the invention offer considerable advantages.
  • the inner portion 105 defines a coaxial core which acts as a guide for telescopic movement, making it mechanically more solid when it is in the extended position. It also makes it possible to insert the stopping means between the inner portion and the outer portion, in particular directly in the double wrapping between the two portions.
  • This aspect allows making a filter with a very smooth outside surface.
  • the outside surface is free of irregularities which, besides the obvious aesthetic advantage, means that the cigarette is more manageable during the different production stages and, above all, during packing.
  • the filtering capacity and physical properties of the filter can be calibrated very precisely at the design stage by acting on the inner portion or on the outer portion.
  • the filter for example ventilation and pressure drop
  • two different materials or the same material with different specifications Preferably, two types of cellulose acetate are used: one with a few filaments, but thick, as the first material, that is to say, the material used to make the inner portion 105, and one with many, thin filaments as the second material, that is to say, the material used to make the outer portion 106.
  • the cigarette can be customized by adjusting the ventilation: high ventilation when the outer portion 106 is in the drawn-in position, low ventilation when the outer portion 106 is in the extended position.
  • the perforated zones 114 it is possible to make high-permeability zones on the connecting sleeve 104, using laser perforation, electrostatic or plasma microperforation techniques.
  • the perforated zones 114 are moved to the annular cavity "A".
  • an additive for example, flavouring capsules or granules.
  • variation of cigarette properties may be clearly indicated by: colour, text, or marks on the paper which is uncovered, besides the obvious change of shape.
  • the outer intermediate sleeve 110 might also by coloured.
  • cigarettes according to this invention can be packed in shorter packets, with obvious savings in terms of packaging materials, freight volume, etc.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (26)

  1. Zigarette (100), umfassend einen Filter (102), ein Zigarettenstück (103) und eine Verbindungshülse (104), ausgelegt, um den Filter (102) um das Zigarettenstück (103) zu wickeln und dadurch mit diesem zu kuppeln, wobei sich die Zigarette entlang einer Achse (101) erstreckt, wobei der Filter (102) ein teleskopischer, koaxialer Filter ist, umfassend einen inneren Abschnitt (105) und einen äußeren Abschnitt (106), der rund um den inneren Abschnitt (105) gewickelt ist, wobei der äußere Abschnitt (106) in Folge entlang der Achse (101) eine erste Sektion (106a) umfasst, die fest mit dem Zigarettenstück (103) verbunden ist, und eine zweite Sektion (106b), die relativ zur ersten Sektion (106a) entlang der Zigarettenachse (101) zwischen einer eingezogenen Position und einer ausgezogenen Position verschiebbar ist, dadurch gekennzeichnet, dass Mittel zum Stoppen der zweiten Sektion (106b), um die vollständig ausgezogene Position zu definieren, zwischen dem inneren Abschnitt (105) und dem äußeren Abschnitt (106) angeordnet sind und ein erstes Anschlagelement (107) und ein zweites Anschlagelement (108) umfassen, jeweils fixiert oder assoziiert am/mit dem inneren Abschnitt (105) und dem äußeren Abschnitt (106) oder umgekehrt,
    und wobei der axiale Abstand ("L") zwischen den zwei Anschlagelementen den Hub ("C") der zweiten Sektion (106b) relativ zur ersten Sektion (106a) zwischen der eingezogenen Position und der ausgezogenen Position definiert.
  2. Zigarette (100) nach Anspruch 1, wobei der innere Abschnitt (105) eine innere Zwischenhülle (109) umfasst, die rund um ein erstes Material gewickelt ist, vorzugsweise Filtermaterial, und wobei das jeweilige erste oder zweite Anschlagelement (107, 108) außenseitig an/mit der inneren Zwischenhülse (109) fixiert oder assoziiert ist.
  3. Zigarette (100) nach Anspruch 1 oder 2, wobei der äußere Abschnitt (106) eine äußere Zwischenhülle (110) umfasst, die innenseitig rund um ein zweites Material gewickelt ist, vorzugsweise Filtermaterial, und wobei das jeweilige erste oder zweite Anschlagelement (107, 108) an/mit der äußeren Zwischenhülse (110) fixiert oder assoziiert ist.
  4. Zigarette (100) nach einem oder mehreren der vorhergehenden Ansprüche, wobei ein jedes erste und zweites Anschlagelement (107, 108) aus einem Stück Band (22, 28), das sich rund um die Zigarettenachse (101) erstreckt, oder einem oder mehreren der folgenden Elemente besteht: Pulverschichten, Farbschichten, Erhebungsmerkmalen oder Prägungen, Einschnitten oder Faltungen.
  5. Zigarette (100) nach Anspruch 4, wobei der äußere Abschnitt (106) durch eine Einschnittlinie "T" in die erste Sektion (106a) und die zweite Sektion (106b) geteilt ist und das Stück (28), das entweder das erste oder das zweite Anschlagelement (107, 108) definiert, sich zwischen der ersten Sektion (106a) und der zweiten Sektion (106b) erstreckt, und wobei eine Haftschicht (112) bereitgestellt ist, die für die feste Verbindung des inneren Abschnitts (105) und der ersten oder zweiten Sektion (106a, 106b) des äußeren Abschnitts (106) sorgt.
  6. Zigarette (100) nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Verbindungshülse (104) eine Schwächungslinie (113) aufweist, die rund um die Achse (101) verläuft und so ausgestaltet ist, dass sie zwei Abschnitte der Verbindungshülse (104) entlang derselben Achse definiert, wobei ein erster Abschnitt (104a) am Zigarettenstück (103) fixiert ist und ein zweiter Abschnitt (104b) an der zweiten Sektion (106b) des äußeren Abschnitts (106) des Filters fixiert ist.
  7. Zigarette (100) nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Anschlagelemente den gesamten Umfang rund um die Achse (101) oder nur einen oder mehrere Bögen bedecken.
  8. Zigarette (100) nach den Ansprüchen 5 und 6, wobei die Schwächungslinie (113) axial zwischen dem Zigarettenstück (103) und der Einschnittlinie ("T") angeordnet ist, wobei der Abstand ("D") zwischen der Einschnittlinie ("T") und der Schwächungslinie (113) vorzugsweise größer als der Hub ("C") ist.
  9. Zigarette (100) nach einem oder mehreren der vorhergehenden Ansprüche, wobei die Verbindungshülse (104) eine perforierte Zone (114) aufweist, die ausgelegt ist, um an einem ringförmigen Hohlraum ("A") angeordnet zu werden, der in der ausgezogenen Position zwischen der ersten Sektion (106a) und der zweiten Sektion (106b) des äußeren Abschnitts (106) des Filters geschaffen wird.
  10. Zigarette (100) nach einem oder mehreren der vorhergehenden Ansprüche, wobei der innere Abschnitt (105) ein erstes Material umfasst, vorzugsweise ein Filtermaterial, und der äußere Abschnitt (106) ein zweites Material umfasst, vorzugsweise ein Filtermaterial, und wobei sich das erste und das zweite Filtermaterial in Bezug auf einen oder mehrere Aspekte unterscheiden, beispielsweise ausgewählt aus Folgendem: Farbe, Geruch, Durchlässigkeit, Zugfestigkeit.
  11. Zigarette (100) nach den Ansprüchen 2 und 3, wobei die Verbindungshülse (104) und/oder die äußere Zwischenhülse (110) und/oder das erste/zweite Anschlagelement (107, 108) in verschiedenen Farben oder aus verschiedenen Materialien gegenüber dem ersten oder zweiten Material und/oder der inneren Zwischenhülse (109) ausgebildet sind, um dem Nutzer die ausgezogene Position anzugeben.
  12. Maschine (1) zur Herstellung eines Filterstabs (16), der geeignet ist, um einen teleskopischen, koaxialen Filter (102) herzustellen, umfassend einen inneren Abschnitt (105) und einen äußeren Abschnitt (106), gewickelt rund um den inneren Abschnitt (105), wobei der äußere Abschnitt (106) eine erste Sektion (106a) umfasst, die fest mit dem Zigarettenstück (103) verbunden ist, und eine zweite Sektion (106b), die relativ zur ersten Sektion (106a) entlang der Zigarettenachse (101) zwischen einer eingezogenen Position und einer ausgezogenen Position verschiebbar ist,
    wobei die Maschine umfasst:
    - einen Maschinenabschnitt (1a), der konfiguriert ist, um einen inneren Stab (9) aus einem Strang (7) eines ersten Materials, vorzugsweise eines Filtermaterials, oder aus einer Halterung, beispielsweise in Form eines Rohrs, zu erhalten;
    - einen Maschinenabschnitt (1b), der konfiguriert ist, um einen Filterstab (16) durch Wickeln eines Streifens (14) eines zweiten Materials, vorzugsweise eines Filtermaterials, rund um den inneren Stab (9) zu erhalten,
    dadurch gekennzeichnet, dass mindestens einer der Maschinenabschnitte (1a, 1b) konfiguriert ist, um zwischen dem Strang (7) oder der Halterung und dem Streifen (14) Mittel zum Stoppen der zweiten Sektion (160b) zu positionieren, geeignet zum Positionieren und Arbeiten zwischen dem inneren Abschnitt (105) und dem äußeren Abschnitt (106) des Filters, vorzugsweise durch Anbringen von mindestens einem Stück (22) Band (24), das geeignet ist, um ein erstes Anschlagelement (107) der Stoppmittel herzustellen, und vorzugsweise durch Anbringen von mindestens einem weiteren Stück (28) Band (30), das geeignet ist, um ein zweites Anschlagelement (108) der Stoppmittel herzustellen.
  13. Maschine (1) nach Anspruch 12, umfassend eine Vorrichtung (1c), die geeignet ist, um ein Verbundband (8) herzustellen, umfassend ein Band (19) und ein weiteres Band (25), positioniert gegenständig und parallel zueinander und jeweils geeignet, um eine innere Zwischenhülse (109) des inneren Abschnitts (105) des Filters und eine äußere Zwischenhülse (110) des äußeren Abschnitts (106) des Filters herzustellen, wobei das Verbundband (8) zwischen den zwei Bändern (19, 25) eine Vielzahl von Stücken (22) umfasst, die in einem bestimmten Abstand ("p1") angeordnet sind, und eine Vielzahl von weiteren Stücken (28), die in einem bestimmten Abstand ("p2") angeordnet sind,
    wobei der Maschinenabschnitt (1a) konfiguriert ist, um einen inneren Stab (9) zu erhalten, indem der Strang (7) im Verbundband (8) gewickelt wird.
  14. Maschine (1) nach Anspruch 13, wobei die Vorrichtung (1c) konfiguriert ist, um Stücke (22) vorzubereiten, die entlang der Hauptlängsrichtung des Bands (19) eine Länge ("Y1") gleich dem Doppelten der Länge ("X1") der ersten Anschlagelemente (107) aufweisen, und weitere Stücke (28), die entlang der Hauptlängsrichtung des weiteren Bands (25) eine Länge ("Y2") aufweisen, die mehr als das Doppelte der Länge ("X2") der zweiten Anschlagelemente (108) beträgt.
  15. Maschine (1) nach Anspruch 13 oder 14, wobei die Vorrichtung (1c) umfasst:
    - Zuführmittel, die geeignet sind, um das durchgehende Band (19) von einer Rolle (20) abzurollen;
    - eine Anbringungseinrichtung (21), um Stücke (22) anzubringen, die sich entlang des vom Band (19) zurückgelegten Wegs (P4) befindet;
    - weitere Zuführmittel, die geeignet sind, um das weitere durchgehende Band (25) von einer Rolle (26) abzurollen;
    - eine weitere Anbringungseinrichtung (27), um weitere Stücke (28) anzubringen, die sich entlang des vom weiteren Band (25) zurückgelegten Wegs (P5) befindet;
    - Mittel zum Kuppeln des Bands (19) und des weiteren Bands (25) parallel zueinander mit den Stücken (22) und den weiteren Stücken (28), die zwischen den zwei Bändern positioniert sind.
  16. Maschine (1) nach Anspruch 13 oder 14, wobei die Vorrichtung (1c) umfasst:
    Zuführmittel, die geeignet sind, um das durchgehende Band (19) von einer Rolle (20) abzurollen;
    eine Anbringungseinrichtung (21), um Stücke (22) anzubringen, die sich entlang des vom Band (19) zurückgelegten Wegs (P4) befindet;
    eine weitere Anbringungseinrichtung (27), um weitere Stücke (28) anzubringen, die sich entlang des vom Band (19) zurückgelegten Wegs (P4) befindet;
    weitere Zuführmittel, die geeignet sind, um das weitere durchgehende Band (25) von einer Rolle (26) abzurollen;
    Mittel zum Kuppeln des Bands (19) und des weiteren Bands (25) parallel zueinander mit den Stücken (22) und den weiteren Stücken (28), die zwischen den zwei Bändern positioniert sind.
  17. Mittel (1) nach Anspruch 16, wobei die Vorrichtung (1) eine Klebeeinrichtung (33) umfasst, die ausgelegt ist, um eine Kleberschicht (34) auf der Seitenfläche der weiteren Stücke (28) anzubringen, die für die Kupplung mit dem weiteren Band (25) geeignet ist.
  18. Maschine (1) nach einem oder mehreren der Ansprüche 12-17, wobei der Abschnitt (1b) eine Haftmaterialanbringungseinrichtung (10) umfasst, um mindestens Streifen (11) aus Haftmaterial entlang der außenseitigen Oberfläche des Stabs (9) anzubringen, und eine Zentriereinrichtung (12), die vorzugsweise nach der Anbringungseinrichtung (10) angeordnet ist und vorzugsweise Längsrippen (13) umfasst, die parallel zum Stab (9) verlaufen, um diesen zwischen den einzelnen Streifen (11) aus Haftmaterial zu tragen.
  19. Filterspitzenbefestigungsmaschine (39) zur Herstellung von Zigaretten (100) nach einem oder mehreren der Ansprüche 1-11, wobei die Filterspitzenbefestigungsmaschine konfiguriert ist, um:
    - nacheinander Zigarettenstücke (40) zu empfangen, die durch Schneiden eines Zigarettenstabs erhalten wurden;
    - nacheinander Filterstücke (38) zu empfangen, die durch Schneiden eines Filterstabs (16), der aus der Maschine (1) nach einem oder mehreren der Ansprüche 12-18 ausgegeben wird, erhalten werden;
    - die Zigarettenstücke (40) in zwei Stücke (103) halber Länge zu teilen und diese wegführend in eine axiale Richtung zu bewegen;
    - mittels einer Einschnitteinrichtung (46) die Filterstücke (42) an den Einschnittlinien ("T") einzuschneiden, um die erste Sektion (106a) und die zweite Sektion (106b) des äußeren Abschnitts (106) des Filters zu trennen;
    - die Filterstücke (38) in zwei Stücke (42) halber Länge entlang Schneidlinien ("T2") zu teilen;
    - ein Filterstück (42) axial zwischen zwei Zigarettenstücken (103) zu positionieren und diese miteinander mit einem Stück Band (48) zu verbinden, um eine Doppelzigarette herzustellen;
    - die Doppelzigarette an der Schneidlinie ("T1") zu halbieren, um zwei fertige Filterzigaretten (100) herzustellen.
  20. Filterspitzenbefestigungsmaschine (39) nach Anspruch 19, umfassend:
    eine Einschnittstation (49), die auf dem Band (48) arbeitet und konfiguriert ist, um zwei perforierte Zonen (114) und zwei Schwächungslinien (113) auf dem Band (48) herzustellen, und
    eine Schneidstation (50), die konfiguriert ist, um Bandstücke (48) zu erhalten, die jeweils ausgestaltet sind, um zwei Verbindungshülsen (104) zu formen.
  21. Verfahren zur Herstellung von Zigaretten (100) nach einem oder mehreren der Ansprüche 1-11, umfassend die folgenden Schritte:
    - Bearbeiten eines ersten Materials, vorzugsweise eines Filtermaterials, das geeignet ist, um den inneren Abschnitt (105) eines teleskopischen, koaxialen Filters herzustellen, um einen Strang (7) aus dem ersten Material zu erhalten oder um eine Halterung vorzubereiten, zum Beispiel in Form eines Rohrs;
    - Bearbeiten eines zweiten Materials, vorzugsweise eines Filtermaterials, das geeignet ist, um den äußeren Abschnitt (106) eines teleskopischen, koaxialen Filters herzustellen, um einen Streifen (14) des zweiten Materials zu erhalten;
    - Erhalten eines inneren Stabs (9) aus dem Strang (7) oder aus der Halterung und Erhalten eines Filterstabs (16), indem mindestens der Streifen (14) rund um den inneren Stab (9) gewickelt wird;
    - Schneiden des Filterstabs (16) entlang der Schneidlinien ("T2"), um ein Stück (38) zu erhalten;
    - Schneiden des Stücks (38) entlang der Schneidlinien ("T2"), um ein Stück (42) zu erhalten, und Einschneiden des Stücks (42), um den äußeren Abschnitt (106) in die erste Sektion (106a) und die zweite Sektion (106b) zu teilen;
    - Teilen der Zigarettenstücke (40) in zwei Stücke (103) halber Länge und deren wegführendes Bewegen in eine axiale Richtung;
    - axiales Positionieren eines Filterstücks (42) zwischen zwei Zigarettenstücken (103) und deren Verbinden miteinander mit einem Stück Band (48), um eine Doppelzigarette herzustellen;
    - Halbieren der Doppelzigarette entlang der Schneidlinie ("T1"),
    dadurch gekennzeichnet, dass der Schritt zum Erhalten des Stabs (9) und/oder der Schritt zum Erhalten des Stabs (16) durchgeführt werden, indem zwischen dem Strang (7) oder der Halterung und dem Streifen (14) Stoppmittel positioniert werden, die ausgelegt sind, um zwischen dem inneren Abschnitt (105) und dem äußeren Abschnitt (106) des Filters zu arbeiten, vorzugsweise indem mindestens ein Stück (22) Band (24) angebracht wird, das geeignet ist, um ein erstes Anschlagelement (107) der Stoppmittel herzustellen, und vorzugsweise indem mindestens ein weiteres Stück (28) Band (30) angebracht wird, um ein zweites Anschlagelement (108) herzustellen.
  22. Verfahren nach Anspruch 21, umfassend den Schritt zur Herstellung eines Verbundbands (8), umfassend ein Band (19) und ein weiteres Band (25), positioniert gegenständig und parallel zueinander und jeweils geeignet, um eine innere Zwischenhülse (109) des inneren Abschnitts (105) des Filters und eine äußere Zwischenhülse (110) des äußeren Abschnitts (106) des Filters herzustellen, wobei das Verbundband (8) zwischen den zwei Bändern (19, 25) eine Vielzahl von Stücken (22) umfasst, die in einem bestimmten Abstand ("p1") angeordnet sind, und eine Vielzahl von weiteren Stücken (28), die in einem bestimmten Abstand ("p2") angeordnet sind,
    wobei der innere Stab (9) erhalten wird, indem der Strang (7) oder die Halterung im Verbundband (8) gewickelt wird.
  23. Verfahren nach Anspruch 22, wobei der Schritt zur Herstellung eines Verbundbands (8) umfasst:
    - Zuführen des durchgehenden Bands (19) von einer Rolle (20) ;
    - Anbringen der Stücke (22) am Band (19);
    - Zuführen des weiteren durchgehenden Bands (25) von einer Rolle (26);
    - Anbringen der weiteren Stücke (28) am weiteren Band (25) ;
    - Kuppeln des Bands (19) und des weiteren Bands (25) parallel zueinander mit den Stücken (22) und den weiteren Stücken (28), die zwischen den zwei Bändern positioniert sind.
  24. Verfahren nach Anspruch 22, wobei der Schritt zur Herstellung eines Verbundbands (8) Folgendes umfasst:
    - Zuführen des durchgehenden Bands (19) von einer Rolle (20) ;
    - Anbringen der Stücke (22) und der weiteren Stücke (28) am Band (19);
    - Zuführen des weiteren durchgehenden Bands (25) von einer Rolle (26);
    - Kuppeln des Bands (19) und des weiteren Bands (25) parallel zueinander mit den Stücken (22) und den weiteren Stücken (28), die zwischen den zwei Bändern positioniert sind.
  25. Verfahren nach Anspruch 24, umfassend den Schritt zum Anbringen einer Kleberschicht (34) auf der Seitenfläche der weiteren Stücke (28), die für die Kupplung mit dem weiteren Band (25) geeignet ist.
  26. Verbundband (8) zur Herstellung von Zigaretten (100) nach einem oder mehreren der Ansprüche 1-11, umfassend ein Band (19) und ein weiteres Band (25), positioniert gegenständig und parallel zueinander und jeweils geeignet, um eine innere Zwischenhülse (109) des inneren Abschnitts (105) des Filters und eine äußere Zwischenhülse (110) des äußeren Abschnitts (106) des Filters herzustellen, wobei das Verbundband (8) zwischen den zwei Bändern (19, 25) eine Vielzahl von Stücken (22) umfasst, die in einem bestimmten Abstand ("p1") angeordnet und geeignet sind, um die ersten Anschlagelemente (107) herzustellen, und eine Vielzahl von weiteren Stücken (28), die in einem bestimmten Abstand ("p2") angeordnet und geeignet sind, um die zweiten Anschlagelemente (108) herzustellen.
EP16744853.9A 2015-06-16 2016-06-14 Teleskopische, koaxiale filterzigarette und zugehöriges herstellungsverfahren, filterstabherstellungsmaschine und filterspitzenbefestigungsmaschine Active EP3310194B1 (de)

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WO2019186395A1 (en) 2018-03-26 2019-10-03 Philip Morris Products S.A. Inhaler with composite porous support element
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CN113040422B (zh) * 2021-04-26 2023-05-12 张家口卷烟厂有限责任公司 一种卷烟机烟支吹拢自动点检装置及方法
CN113180291B (zh) * 2021-05-07 2023-03-17 中国烟草总公司郑州烟草研究院 一种烟支滤棒的匹配度试验装置

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US4898190A (en) * 1989-03-01 1990-02-06 R. J. Reynolds Tabacco Company Adjustable air dilution cigarette with pressure drop compensation
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