EP3332655B1 - Doppellagiges röhrchen der tabak verarbeitenden industrie sowie verfahren zur herstellung eines derartigen röhrchens - Google Patents

Doppellagiges röhrchen der tabak verarbeitenden industrie sowie verfahren zur herstellung eines derartigen röhrchens Download PDF

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Publication number
EP3332655B1
EP3332655B1 EP17205335.7A EP17205335A EP3332655B1 EP 3332655 B1 EP3332655 B1 EP 3332655B1 EP 17205335 A EP17205335 A EP 17205335A EP 3332655 B1 EP3332655 B1 EP 3332655B1
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EP
European Patent Office
Prior art keywords
material strip
strip
adhesive
width
tube
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Active
Application number
EP17205335.7A
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German (de)
English (en)
French (fr)
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EP3332655A1 (de
Inventor
Alexander Buhl
Roman Piechaczek
Jan Blewonska
Stefan KNOBBE
Kevin BRAST
Ralf Soltow
Felix LÜCKE
Gerd Strohecker
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Koerber Technologies GmbH
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Koerber Technologies GmbH
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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
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • 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
    • A24C5/46—Making paper tubes for cigarettes
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/02—Cigars; Cigarettes with special covers
    • A24D1/025—Cigars; Cigarettes with special covers the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity

Definitions

  • the invention relates to a double-layer tube for the tobacco processing industry and a method for producing double-layer tubes for the tobacco processing industry.
  • tubes for example cardboard tubes or paper tubes, are used in order, for example, to provide special filters such as a recess filter or a hollow filter.
  • filters such as a recess filter or a hollow filter.
  • such tubes also serve as a component of a diffuser which ensures that a smoke containing nicotine is evened out.
  • a corresponding tube should have a certain stability, which is why it is known to produce multi-walled paper tubes.
  • EP 3 033 952 A2 discloses a double-layer tube for the tobacco processing industry and a device and a method for producing such a tube.
  • a product of the tobacco processing industry is disclosed with a filter comprising a hollow cylinder made of a stable paper material.
  • a double-layer tube of the tobacco processing industry made from a first and a second strip of material section, the first strip of material section having a first width and the second strip of material section having a second width, the first and the second strip of material section being wound around one another in such a way are that the first strip of material section has a circular or oval shape in cross section and the edges defining the first width butt together, the second strip of material section having a circular or oval shape in cross section and the edges defining the second width butt together, the second strip of material section arranged externally around the first strip of material portion, wherein the abutting edges of the first and second strip of material portion are offset from one another in the circumferential direction, with the thickness of the first and second material strip section being in a range from 38 ⁇ m to 160 ⁇ m, with a position adhesive between the first and the second material strip section as a full-area or almost full-area gluing with an application thickness of 10 ⁇ m up to 80 ⁇ m is provided.
  • the edges of the first and second material strip sections arranged in abutment have a very easily definable roundness at these transition points, as a result of which the quality of the double-layered tube produced is significantly improved compared to the prior art.
  • an application thickness is understood to mean the thickness of the adhesive that prevails during application.
  • an EP 2 974 798 A1 which produces an adhesive track or glue line of a predetermined thickness.
  • the position adhesive is the adhesive that is arranged between the first and second material strip section or a first and a second material strip, which indicates an overlap of the first and second material strip after the first and second material strip have been brought together in an offset manner.
  • the positional adhesive can be considered to be the adhesive located on the larger peripheral portion between the butt edges. on the smaller one A so-called seam adhesive is provided on the peripheral section between the abutting edges.
  • the application thickness of the adhesive does not correspond to the adhesive thickness after the material strips have been joined or the manufactured double-layer tube. The reason for this is that, on the one hand, the adhesive hardens and, on the other hand, adhesive is also absorbed in the strip of material.
  • the thickness of the first and second material strip section is preferably in a range from 100 ⁇ m to 140 ⁇ m, in particular 120 ⁇ m to 130 ⁇ m, and/or the application thickness of the position adhesive is in a range from 10 ⁇ m to 40 ⁇ m, in particular 15 ⁇ m to 30 ⁇ m ⁇ m.
  • a seam adhesive is preferably provided between the first and the second material section, in particular as a full-surface or almost full-surface gluing, with an application thickness of 40 ⁇ m to 120 ⁇ m, in particular 60 ⁇ m to 100 ⁇ m.
  • the application thickness of the seam adhesive is preferably greater than the application thickness of the position adhesive.
  • the thickness of the seam adhesive is 1.5 to 3 times as thick as the applied thickness of the position adhesive.
  • the weight of the first and/or second material strip section is preferably in a range from 27 g/m 2 to 125 g/m 2 , in particular 60 g/m 2 to 120 g/m 2 , in particular 70 g/m 2 to 110 g/m 2 m2 .
  • the weight of the first and/or second material strip section or of the first and/or second material strip is particularly preferred at 100 g/m 2 .
  • the offset of the abutting edges of the first and second material strip sections is preferably between 0.5 mm and 3 mm, in particular between 1.5mm to 2.5mm.
  • the ratio of the second width to the first width is between 52:48 and 50.5:49.5.
  • the ratio of the second width to the first width or the material strip section widths to one another can depend on the format of the product from the tobacco processing industry that is to be provided with the tube.
  • the ratio of the second width to the first width can be in the range from 51.5 to 48.5.
  • this ratio can be 51.5 to 48.9 and for a king-size cigarette with an outside diameter of 7.4 mm, this ratio can be 50.5 to 49. 5 lie.
  • the width of the material section or sections can be 26.5 mm to 27.5 mm, 31.0 to 32.5 mm and 44.5 mm to 45.5 mm.
  • the material sections or strips of material can be made of paper that has the appropriate thickness and weight as specified above.
  • the paper can be colored on one or both sides, patches made of aluminum or other materials, for example, can be applied, or the paper can be coated with a material, for example an aluminum lamination can be provided.
  • An embossing or an imprint or a stamping can also be provided.
  • One type of adhesive or also several, for example two types of adhesive, can be provided as the adhesive.
  • a PVA adhesive polyvinyl acetate adhesive
  • an additional hotmelt adhesive can be provided.
  • a flavor can be applied, preferably to the first material strip section. The flavor can preferably be added to the adhesive being.
  • the quantities of adhesive or glue used for seam adhesive can also depend on the format. For example, 6 g/500 m to 20 g/500 m, preferably 10 g/500 m, of seam adhesive can be provided for a Microslim cigarette and 25 g/500 m to 55 g/500 m for a Superslim cigarette or king-size cigarette , preferably 45 g/500 m adhesive per line of seam glue.
  • the adhesive amounts of the position adhesive can also be adjusted depending on the cigarette format.
  • a quantity of glue of 10 g/500 m to 60 g/500 m, preferably 20 g/500 m, can be provided for a Microslim cigarette, for example, and a quantity of glue of 25 g/500 m to 70 g/500 m for a Superslim cigarette m, preferably 60 g/500 m and in the case of a king-size cigarette an amount of glue of 35 g/500 m to 80 g/500 m, preferably 55 g/500 m.
  • the glue application pattern is preferably full-surface.
  • the adhesive can be, for example, polyvinyl acetate (PVA or PVAC). This is a thermoplastic material. Other adhesives or glues can also be used.
  • PVA polyvinyl acetate
  • PVAC polyvinyl acetate
  • an adhesive is provided between the first and the second material strip section, essentially over the entire surface or over the entire surface.
  • An almost full-surface gluing is understood in particular as a gluing in which the surface of a material strip section is glued to at least 80%, preferably at least 90%, particularly preferably at least 95% over the entire surface.
  • edges of the respective material strip section are in abutting relationship, this means that these edges abut one another or are at a small distance from one another.
  • Adhesive is preferably provided between at least two edges, in particular the end faces of the edges.
  • glue can be provided to fill a gap between the edges.
  • adhesive is provided between all edges.
  • the possibly present gap between the edges is thus preferably also filled with adhesive.
  • the thickness of the filling is such that the adhesive is preferably flush with the surface of the material strip section.
  • the first width of the material strip sections is preferably smaller than the second width. This measure makes it possible to specify a double-layered tube which, particularly in the outer layer, has a small gap or no gap between the edges or the abutting edges.
  • the first and/or the second material strip section is preferably made of paper or cardboard.
  • a particularly stable, double-layer tube for the tobacco processing industry can be achieved if preferably the abutting edges of the first and second material strip sections are not radially aligned or are not radially aligned with one another. This means that the abutting edges of the first and second material strip sections are offset from one another in the circumferential direction. The abutting edges or the corresponding gaps between the abutting edges are then at a radial angular distance from one another.
  • the radial angular distance is preferably between 2° and 80°, in particular between 5° and 45°, particularly preferably between 10° and 45°.
  • the thickness of the first material strip section preferably corresponds to the thickness of the second material strip section.
  • the quality of the tube produced is particularly high.
  • the thickness of the second material strip section is smaller than the thickness of the first material strip section, it can be ensured that the adhesive used sets faster, so that the production speed can be increased.
  • the material strip feed device can be feed rollers over which a material strip of a corresponding width can be conveyed.
  • a material strip is usually attracted by a material strip bobbin and conveyed into the corresponding device.
  • the cutting device which follows in the conveying direction of the material strip, is a slitter that cuts the material strip in the longitudinal axial direction.
  • the gluing device connected to the cutting device applies glue to at least one of the two material strips, ie the first and/or the second material strip, essentially over the entire surface Format device an end portion of the second strip of material is pressed to close a seam on the first strip of material.
  • this area can also be appropriately glued or provided with adhesive in a subsequent step.
  • the gluing device can be a gluing device that corresponds to a gluing device that is EP 2 974 798 A1 is described.
  • the gluing device is followed in the conveying direction by a merging device which, within the scope of the invention, preferably comprises a paper layer adjustment device or paper layer setting device, by means of which the lateral position, i.e. a relative position of the first and second material strip to one another, transverse to the conveying direction, can be set can, in order to provide only a partial overlap of the first and second strip of material, so that viewed from the width of these strips of material a part protrudes to the left and a part to the right.
  • a merging device which, within the scope of the invention, preferably comprises a paper layer adjustment device or paper layer setting device, by means of which the lateral position, i.e. a relative position of the first and second material strip to one another, transverse to the conveying direction, can be set can, in order to provide only a partial overlap of the first and second strip of material, so that viewed from the width of these strips of material a part protrudes to the left and a part to the right.
  • the device for producing double-layered tubes in the tobacco processing industry first of all produces a tubular strand from at least two layers of a strip of material. This tubular strand can then be cut to length, for example using a conventional knife device. Provision can also initially be made for feeding the tubular rod produced to a further machine, for example a filter rod machine or a tobacco rod machine, in order to introduce a filter material or filter segment and/or a tobacco material or tobacco segment around the tubular rod and/or into the tubular rod. At the end, a strip of wrapping material can then be wound around the strand then formed, in order then finally to cut the corresponding rods with the double-layer tubes contained therein to length.
  • a further machine for example a filter rod machine or a tobacco rod machine
  • a separating device which spatially separates the first strip of material or the second strip of material from the respective other strip of material in the conveying direction downstream of the cutting device.
  • first and second strip of material which point in the same direction, still point in the same direction after the first and second strip of material have been joined together.
  • a first heating device is provided between the combining device and the formatting device.
  • the adhesive can be pre-cured by means of the first heating device, so that the first and the second strip of material are held together and are still deformable, preferably in such a way that the shape already essentially holds itself after bending.
  • the gluing device preferably provides for gluing the entire surface or almost the entire surface of the first and/or the second strip of material.
  • a seam gluing device is preferably provided between the merging device and the formatting device, in particular between the first heating device and the formatting device.
  • the seam gluing device is used when the previous gluing device does not provide full-surface gluing. What is meant is the gluing that was not carried out over the entire surface in the transverse axial direction and thus a glue or adhesive is only applied by means of the seam gluing device, which serves to close the seam.
  • Complete gluing should preferably be carried out transversely to the longitudinal axis by the gluing device and also the seam gluing device.
  • the format device preferably comprises a second heating device.
  • the second heating device can be arranged, for example, in the upper format of the format device and serves in particular preferably for the complete setting of the seam adhesive.
  • An alternative variant can also be provided, for example connecting the device shown upstream of a conventional rod making machine and using a commonly used seam plate as an additional heating device in the conventional rod making machine.
  • a corresponding tubular strand and thus corresponding double-layer tubes for the tobacco processing industry can then be produced with a significantly improved running stability.
  • a cutting device is provided downstream of the formatting device in order to cut small tubes from the tubular strand.
  • a machine in the tobacco processing industry is provided with a device according to the invention, with a rod machine being connected downstream of the device according to the invention.
  • the gluing preferably takes place over the entire surface or almost over the entire surface.
  • An interruption in the gluing on the surface can be present, for example, where a seam of the other strip of wrapping material lies.
  • there can be an interruption in the glue there can be an interruption in the glue.
  • gluing can also be provided at this point, so that gluing actually occurs over the entire surface.
  • staggered merging means gluing that is offset relative to one another in the width of the strips.
  • One or two areas on the second strip of material are preferably provided with a seam adhesive with an application thickness of 40 ⁇ m to 120 ⁇ m, in particular 60 ⁇ m to 100 ⁇ m.
  • the first strip of material is narrower than the second strip of material, wherein the second strip of material is or is arranged externally around the first strip of material, wherein in particular the ratio of a second width of the second strip of material to a first width of the first strip of material is between 52:48 and 50.5 to 49.5.
  • one type of adhesive is used for the position adhesive and another type of adhesive is used for the seam adhesive.
  • One type of adhesive can also be provided for both the position adhesive and the seam adhesive.
  • the material strips brought together are heated during and/or after shaping.
  • the adhesive then hardens in particular completely.
  • the seam adhesive is preferably applied before the strips of material are brought together.
  • the seam adhesive can therefore be applied together with the position adhesive or applied simultaneously with it, ie before the material strips are brought together. Alternatively, this after merging the strip of material or happen both before and after.
  • a first seam adhesive can be applied at the same time as the position adhesive is being applied and a further or supplementary seam adhesive application can take place when the strips of material have been brought together.
  • Multi-layer, in particular double-layer, tubes are preferably produced from material strip sections, which are preferably made of cardboard or paper, in which there are no overlapping seams.
  • material strip sections which are preferably made of cardboard or paper, in which there are no overlapping seams.
  • the double-layer tube is made from a strip of paper, preferably approximately twice as wide, compared to the circumference of the tube, with the strip of paper being cut lengthwise into two strips of slightly different widths, with the two strips of paper produced then being guided on separate paths and preferably the wider and later outer strips are glued, with all traces of glue preferably being applied at the same time.
  • the two paper strips are then superimposed and the superimposed paper strips fed to the format of a format device to form a tubular strand and to close the seam.
  • the device presented is preferably part of a modular slide-in device which can be arranged, for example, preferably between a rod machine in the tobacco processing industry and a filter tow processing machine.
  • tubular strand While the tubular strand is being produced from double-layered strips of material, a suitably prepared filter tow is conveyed through a corresponding push-in device and above the formatting device and introduced into an infeed area of the strand machine.
  • the tubular strand is also introduced into the inlet area, so that the filter tow can be introduced around or into the tubular strand, for example, in order to be able to produce filter rods in this way.
  • the third layer is fed as a third strip of material via a paper run of the rod machine in the infeed area or infeed of the format device.
  • the third strip of material is glued, in particular over the entire surface, and wrapped around the tubular strand in abutting fashion, ie after the tubular strand has already been produced.
  • the abutting edges of the abutment of the third strip of material are at least offset relative to the abutting edge of the second strip of material.
  • the third strip of material may be of a different material than the first and second strips of material.
  • the third strip of material can be paper, foil, crimped paper, electrically conductive material or tobacco foil.
  • a two-string filter tow preparation apparatus could also be used to make a coaxial filter from the double-layer tube or tubular strand.
  • One string of filter tow is then placed around the double layer tubular string and the other string of filter tow is inserted into the tubular string.
  • a coaxial filter can thus be produced after cutting to length into double-layered tubes.
  • an anchoring seam in the form of an adhesive is applied to the tubular strand produced from double-layered material strips, so that the filter tow also holds onto the tubular strand.
  • the first filter material and the second filter material can be different from each other.
  • a double-layer tube which is described above as being according to the invention or preferred, is preferably used as the mouth end piece or used as a middle piece between two filter segments of a filter of a filter cigarette or a filter of a rod-shaped article of the tobacco processing industry.
  • a rod-shaped article of the tobacco processing industry is understood to mean in particular a cigarette or filter cigarette, but also a cigarillo, a cigar, an HnB product (heat not burn) or an e-cigarette.
  • first strip of material 11 has a position adhesive 17, for example a glue, on its upper side.
  • the second material strip 12 is placed on the position adhesive 17.
  • the first strip of material 11 has edges 13 and 14 on the left and right and the second strip of material 12 has edges 15 and 16 on the left and right.
  • a seam gluing 18 has been made on the first strip of material 11, which serves to provide an adhesive bond with the part of the second strip of material 12 that protrudes over the first strip of material 11 on the right. It is also possible to provide seam gluing strips, for example a seam gluing strip 18 on one side of the first material strip 11 and another seam gluing strip on the opposite side of the material strip 11.
  • the gluing 17 can be carried out at the same time as the gluing 18 or, as already stated above , afterwards, before the forming of the tube or the tubular string, in a formatting device.
  • this constellation After passing through the format device, this constellation results in a double-layer tubular strand or, after cutting this strand to length, a double-layer tube with a cross-section of 2 is shown schematically.
  • the first material strip section 11 is then located on the inside, with the edges 13 and 14 being arranged in abutment or at a small distance from one another.
  • This joint area 21 is not radially aligned with the joint area 20 of the second wrapping material strip 12.
  • the edges 15 and 16 are also in abutment there or are provided with a small distance from one another.
  • the gaps in the butt areas 20 and 21 can also be provided with an adhesive. In the case of 2 however, no adhesive is provided.
  • the result is better roundness, since the edge 16 does not overlap, for example with the second strip of wrapping material 12, but is aligned or has a substantially circular outer contour.
  • the thicknesses of the first strip of material section 11 and of the second strip of material section 12 can be different or essentially the same in size. In the case of different thicknesses, it is preferred if the outer material strip section, namely material strip section 12, is thinner than the first material strip section 11. Inventive and preferred thicknesses are described above.
  • FIG 3 shows schematically a device according to the invention for the production of double-layer tubes 10 in the tobacco processing industry.
  • the device according to the invention is shown at the same time.
  • a correspondingly wide strip of base material 24 is pulled off a bobbin (not shown) in the conveying direction 34 and guided over rollers 41 .
  • a cutting device 23 follows a material strip feed device 22 . In the cutting device 23, the strip of base material 24 is cut in the longitudinal direction.
  • the cutting device 23 is a longitudinal cutter.
  • the cut strips of material in the form of a first strip of material 25 and a second strip of material 26 are conveyed in parallel via a further deflection roller 41 and are then separated from one another by means of a transverse conveyor 32 in the form of a deflection roller.
  • the second material strip 26 is essentially completely glued by means of a gluing device 27, specifically at least over the entire length.
  • This gluing device 27 can, for example, omit the area of a seam, although this does not necessarily have to be the case.
  • the first strip of material 25 is conveyed separately from the second strip of material 26 and offset in the transverse direction to the conveying direction by means of the offset device 29, so that in the pair of pull rollers 28, by means of which the first strip of material 25 and the second strip of material 26 are combined, the material strips lie offset on top of one another 25 and 26 is achieved.
  • the material strips are present at this point, for example, as in 1 shown schematically.
  • a heating device 35 is then provided, by means of which the applied glue or the applied adhesive 17 is pre-hardened. If the seam has already been glued, the material strips 25 and 26 placed one on top of the other are fed to a formatting device 30 . If the seam gluing has not yet taken place, this takes place by means of the seam gluing device 36 which is arranged between the heating device 35 and the formatting device 30 .
  • the infeed finger 44 presses the strip of material down onto the format belt 43, which is guided endlessly through the format device 30 via corresponding deflection rollers 41.
  • the strips of material are formed into a round shape or an oval shape in a known manner.
  • the upper format is here designed as a heated upper format 37 to the glue or the Adhesive 17 further bind.
  • corresponding double-layer tubes can be cut to the desired length from the strand 31 formed in this way by means of the cutting device 38 .
  • tubular strand 31 is introduced into a strand machine 40 .
  • a filter tow 46 from a filter tow processing device which is 3 is not shown, but in 3 would be arranged to the right of the device shown, are guided above the format 30 over the device according to the invention and are fed by a pair of pull rollers 42 in the conveying direction 47 of the rod maker 40.
  • the filter tow 46 can then be arranged around the tubular strand 31, for example.
  • an adhesive for example PVA
  • an anchor seam device 45 is applied to the tubular strand 31 by means of an anchor seam device 45 .
  • a strip of wrapping material can accordingly be wound around the rod consisting of an inner tubular rod and a filter tow lying on the outside in a format device, and a corresponding filter can thus be produced.
  • a suitable filter is in 4 example shown schematically.
  • the filter is given the reference number 50 here.
  • the tube 10 is on the inside, a filter tow 48 is on the outside and a wrapping material 49 is arranged around it.
  • the gluing device 27 and the seam gluing device 36 can be used as flat nozzles, spin spray nozzles or according to EP 2 974 798 A1 be trained.
  • a flat application of adhesive or glue is preferably carried out here.
  • the heater 35 can be provided optionally. This essentially serves to pre-cure or pre-cure the adhesive.
  • the strip of material can be pre-bent immediately before the formatting device or immediately after the longitudinal cutter.
  • the double-layer tube can have an inner diameter of, for example, 3 mm to 8 mm.
EP17205335.7A 2016-12-12 2017-12-05 Doppellagiges röhrchen der tabak verarbeitenden industrie sowie verfahren zur herstellung eines derartigen röhrchens Active EP3332655B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016124051.6A DE102016124051A1 (de) 2016-12-12 2016-12-12 Doppellagiges Röhrchen der Tabak verarbeitenden Industrie sowie Verfahren zur Herstellung eines derartigen Röhrchens

Publications (2)

Publication Number Publication Date
EP3332655A1 EP3332655A1 (de) 2018-06-13
EP3332655B1 true EP3332655B1 (de) 2023-01-25

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Country Status (8)

Country Link
US (1) US10721960B2 (zh)
EP (1) EP3332655B1 (zh)
JP (1) JP7115842B2 (zh)
KR (1) KR102569141B1 (zh)
CN (1) CN108208922B (zh)
DE (1) DE102016124051A1 (zh)
PL (1) PL3332655T3 (zh)
RU (1) RU2746381C2 (zh)

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DE102018104823A1 (de) * 2018-03-02 2019-09-05 Delfortgroup Ag Rauchartikel mit steifem umühllungsmaterial
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IT201800009358A1 (it) * 2018-10-11 2020-04-11 Gd Spa Tubolare multistrato e relativi macchina e metodo per la sua realizzazione
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PL3332655T3 (pl) 2023-05-29
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US10721960B2 (en) 2020-07-28
DE102016124051A1 (de) 2018-06-14
RU2746381C2 (ru) 2021-04-12
JP2018093867A (ja) 2018-06-21
RU2017143128A3 (zh) 2021-02-18
RU2017143128A (ru) 2019-06-11
JP7115842B2 (ja) 2022-08-09
KR20180067437A (ko) 2018-06-20
US20180160725A1 (en) 2018-06-14
EP3332655A1 (de) 2018-06-13

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