EP3829782B1 - Vorrichtung und verfahren zur verarbeitung schersensibler beschichtungsmassen - Google Patents

Vorrichtung und verfahren zur verarbeitung schersensibler beschichtungsmassen Download PDF

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Publication number
EP3829782B1
EP3829782B1 EP19746043.9A EP19746043A EP3829782B1 EP 3829782 B1 EP3829782 B1 EP 3829782B1 EP 19746043 A EP19746043 A EP 19746043A EP 3829782 B1 EP3829782 B1 EP 3829782B1
Authority
EP
European Patent Office
Prior art keywords
coating
transfer roller
nip
coating compound
outlet nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP19746043.9A
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German (de)
English (en)
French (fr)
Other versions
EP3829782A1 (de
Inventor
Ingo VOLMERING
Fabian SCHINDLER
Frans TE WELSCHER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Olbrich GmbH
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Olbrich GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Olbrich GmbH filed Critical Olbrich GmbH
Publication of EP3829782A1 publication Critical patent/EP3829782A1/de
Application granted granted Critical
Publication of EP3829782B1 publication Critical patent/EP3829782B1/de
Active legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/086—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers

Definitions

  • the invention is based on a device for processing shear-sensitive coating materials, the device having a transfer roller and a doctor blade which are spaced apart from one another to form a coating gap.
  • the device also has an outlet nozzle for metering a coating composition.
  • a coating composition is from EP 1 117 488 B1 known.
  • a similar device is also described in DE 3717882 A1 or EP2727652 .
  • the devices and methods known from the prior art are used, for example, in the coating of aqueous dispersions, for example for the production of PSA products.
  • the gravure roller method and the doctor blade method are particularly noteworthy. What these methods have in common is that the storage and sometimes also the pre-metering of the coating mass in some areas of the device is realized with very small distances between two walls of the device, for example in the area of the outlet nozzle, which leads to considerable shear stress on the dispersions.
  • side limiters are used for sealing, or simply the so-called squeegee as a scraper in a gravure roll coating machine.
  • the independent claim 10 relates to a corresponding method.
  • Advantageous embodiments are the subject matter of the dependent claims.
  • the outlet nozzle faces a lower gap opening of the coating gap with its nozzle opening.
  • the device has a compulsory conveying system via which a coating mass is metered into the coating gap. The result of this is that the coating composition is exposed to the lowest possible shear rate and long dwell times of the coating composition in the coating machine are avoided.
  • the flushing device can be set up to ensure a homogeneous distribution of the coating mass over the width of the transfer roller.
  • the forced conveying system can be set up to meter the coating mass directly into the coating gap under a slight excess pressure compared to atmospheric pressure.
  • the coating composition can be flushed directly into the coating gap. If the chamber system of the flushing device is designed without seals, it can be avoided that the coating composition is exposed to high pressures in the region of the coating gap, which can lead to agglomeration of the coating composition.
  • seal-free or side-limiter-free means that the flushing device, for example a flushing chamber which has the outlet nozzle, is arranged in a fluidically permeable manner relative to the transfer roller.
  • the flushing chamber and in particular the outlet nozzle can be arranged at a distance from the transfer roller.
  • a gap formed between the flushing device and the transfer roller can be dimensioned such that excess coating mass can flow out of the coating gap via the gap between the flushing device and the transfer roller due to a geodetic pressure difference.
  • aqueous acrylate dispersions with shear-sensitive behavior can be coated with the devices and methods according to the invention without agglomerates.
  • the transfer roller and the doctor blade are arranged next to one another, so that the coating gap is permeable in the vertical direction.
  • the squeegee can preferably be a comma squeegee.
  • the nozzle opening is located in front of the lower gap opening without contact, with the coating composition being flushed into the coating gap under pressure.
  • the non-contact positioning of the nozzle opening in front of the lower gap opening ensures that the coating mass in the coating gap is exposed solely to atmospheric pressure and is therefore not subjected to compression and shearing stress, which could lead to the formation of agglomerates.
  • the outlet nozzle is an outlet of a priming chamber located below the coating gap, the priming chamber preferably further having an inlet for coating composition.
  • the flushing chamber can have a recess-free drainage contour for the coating composition on an outside facing the transfer roller.
  • the coating composition that is dosed, in particular flushed, into the coating gap from below and is not applied to the transfer roller can run off via the depression-free drainage contour on the outside of the flushing chamber.
  • the rinsing chamber can be arranged above a collecting trough, from which the coating mass flowing off into the collecting trough via the outside of the rinsing chamber is pumped back into the rinsing chamber.
  • the coating compound can be pumped from the collection pan into the flushing chamber via a pump of the compulsory conveying system, preferably an eccentric screw pump, with the pump preferably being arranged in a coating compound reservoir.
  • a pump of the compulsory conveying system preferably an eccentric screw pump
  • a drainage gap for excess coating material to flow off can be formed between a boundary wall of the outlet nozzle on an outside of the boundary wall facing the transfer roller and the transfer roller. As a result, excess coating mass can flow off via the drainage gap due to a geodetic pressure difference.
  • a gap seal can be formed on the outside of the boundary wall facing the transfer roller. Due to the gap seal, a slight overpressure can be built up between the nozzle outlet area and the transfer roller in order to enable flushing of the transfer roller over the entire surface and to prevent the coating compound from flowing out of the flushing area.
  • the gap seal can be at a distance of 0.01 mm to 0.5 mm, preferably 0.1 mm to 0.2 mm, from the transfer roller.
  • the gap seal can be part of a nozzle tip, which forms the outlet nozzle on its side opposite the gap seal.
  • the nozzle tip On the squeegee side, the nozzle tip can have a surface that forms the outlet nozzle.
  • the nozzle tip On the transfer roller side, the nozzle tip can have the discharge gap and the gap seal arranged underneath.
  • the nozzle tip can be fixed to the top of the flushing chamber by means of a mounting plate.
  • the nozzle tip can be clamped to the flushing chamber by means of the fastening plate and/or screwed to it.
  • the nozzle tip can be designed in one piece.
  • the nozzle tip can be made of natural or synthetic rubber.
  • the nozzle tip can be designed to be horizontally adjustable in order to be able to set the pressure ratio between the nozzle opening and the gap seal.
  • the flushing device can in particular comprise the flushing chamber and the nozzle tip, with the flushing chamber having the coating material inlet on the squeegee side, a coating material reservoir and one tapering towards the outlet nozzle area can include.
  • the flushing chamber On the transfer roller side, the flushing chamber has an outside through which excess coating composition can run off.
  • the device can also have a counter-roller which is set up to press a material web against the transfer roller.
  • the coating composition can be a flowable material, preferably a dispersion, for example an adhesive.
  • the transfer roller can be a chrome-coated steel roller.
  • the backing roll may have a shell of ethylene propylene diene monomer rubber (EPDM) with a Shore A hardness of 65.
  • EPDM ethylene propylene diene monomer rubber
  • the coating composition can be, for example, a dispersion with a viscosity of 1,200 mPa ⁇ s and a solids content of 58.7%.
  • the rotational speed of the transfer roller can be, for example, 20 to 80 m/min. be.
  • the coating gap can be 50 ⁇ m, for example.
  • the aforementioned numerical values are merely examples and are not intended to limit the subject matter of the invention to corresponding embodiments.
  • the coating composition can be flushed into the coating gap in the vertical direction from below (upward).
  • the coating compound can be flushed into the coating gap without a side limiter, so that excess coating compound can flow off.
  • the coating composition can be metered into the coating gap via an outlet nozzle, with a drainage gap being formed between a boundary wall of the outlet nozzle on an outside of the boundary wall facing the transfer roller and the transfer roller, so that excess coating composition flows out via the drainage gap due to the geodetic pressure difference.
  • the coating composition can be metered into the coating gap via an outlet nozzle, the outlet nozzle being an outlet of a rinsing chamber and coating composition flowing off into a collection trough on the outside of the rinsing chamber being pumped back into the rinsing chamber.
  • FIG 1 shows an exemplary device for processing coating materials 100 such as dispersions, for example adhesives, as is known from the prior art.
  • a counter-roller 17, a transfer roller 1 and an outlet nozzle 4 for metering a coating composition 100 are arranged one above the other in the vertical direction z, with the outlet nozzle 4 facing a lowermost position of the transfer roller 1 with its nozzle opening 5 and directly adjoining it and thus opposite this is arranged sealingly.
  • the outlet nozzle 4 is sealed off from the area surrounding the device by the doctor blades 2 arranged on opposite sides of the outlet nozzle 4 in the direction of rotation of the transfer roller 1 .
  • the coating composition 100 is applied to the circumference of the transfer roller with the help of an overpressure compared to atmospheric pressure via the outlet nozzle 4 and brought to a desired coating thickness with the help of the opposing doctor blades 2, with the coating composition 100 being exposed to high shear rates, which leads to agglomerates in the coating composition 100 leads.
  • the device shown has the disadvantage that for effective application of the coating composition 100 to the transfer roller 1, the coating composition 100 must be metered onto the transfer roller 1 under a comparatively high pressure, which results in the formation of the agglomerates mentioned in the coating composition 100, including the Quality of the coating of the transfer roller 1 suffers and thus the quality of the layer of coating mass produced on the material web 200 is reduced.
  • a device can be used as shown in figure 2 is shown.
  • the device has a transfer roller 1 and a doctor blade 2, which is designed as a comma blade.
  • the transfer roller 1 and the doctor blade 2 are arranged horizontally next to one another, forming a coating gap 3 .
  • the coating gap 3 can have a minimum gap width of 50 ⁇ m, for example. Due to the horizontal arrangement of the transfer roller 1 and the squeegee 2, a passage direction of the coating gap 3 extends essentially in the vertical direction z. For the realization of the invention, however, it is not essential that the transfer roller 1 and the squeegee 2 are arranged exactly horizontally next to one another.
  • the resulting coating gap 3 between the transfer roller 1 and doctor blade 2 has a vertical component in its direction of extension. In any case, however, it should be avoided that the transfer roller 1 and doctor blade 2 are arranged one above the other in the vertical direction, as is the case in the devices known from the prior art according to FIG figure 1 is provided.
  • the device has an outlet nozzle 4 for dosing the coating mass 100 , which nozzle opening 5 faces a lower gap opening 6 of the coating gap 3 .
  • the coating composition 100 is metered into the coating gap 3 from below via a compulsory conveying system 7 of the device.
  • the nozzle opening 5 is positioned in front of the lower gap opening 6 without touching it, so that the nozzle opening 5 is in connection with the surroundings of the device, and therefore with atmospheric pressure.
  • a slight excess pressure of the coating composition 100 is already sufficient to flush the coating composition 100 through the nozzle opening 5 into the coating gap 3 .
  • the nozzle opening 5 can in particular be aligned in the vertical direction, so that the pressure with which the coating compound 100 is provided via the nozzle opening is adjusted in such a way that the coating gap is effectively wetted with the coating compound 100 . Any further pressurization of the coating composition 100 is not necessary and should be avoided in order to avoid the formation of agglomerates in the coating composition 100 .
  • the outlet nozzle 4 is formed at an upper end of a flushing chamber 8 which is arranged below the coating gap 3 .
  • the coating mass 100 is conducted via an inlet 9 into a forced conveying system 7 which has a pump 13 .
  • the pump 13 is preferably an eccentric screw pump.
  • the flushing chamber 8 On its outside and facing the transfer roller 1, the flushing chamber 8 has a drainage contour 11 without any depressions, via which excess coating composition can flow off unhindered. In order to encourage the excess coating composition to flow off via the depression-free drainage contour 11 of the flushing chamber 8 , the flushing chamber 8 can be sealed off from the squeegee 2 .
  • the flushing chamber 8 is arranged above a collecting trough 12 in which the excess coating material 100, which flows back out of the coating gap 3 via the run-off contour 11 of the flushing chamber 8, is collected.
  • the coating composition 100 flowing out via the outside 10 of the rinsing chamber 8 into the collecting trough 12 is pumped back into the rinsing chamber 8 . Flushing the coating gap 3 "from below" promotes a short dwell time of the coating composition in the coating gap 3 and thus good preservation of the dispersive properties of the coating composition 100. Since the coating composition 100 remains in constant motion and is only exposed to comparatively low overpressures compared to atmospheric pressure, the formation of agglomerates is effectively suppressed.
  • the coating composition 100 can be transported from the collecting trough 12 via an outlet 18 into a coating composition storage container 14 and from there it can be fed back to the flushing chamber 8 via the inlet 9 .
  • the pump 13 for transporting the coating composition 100 from the storage container 14 into the flushing chamber 8 can be arranged in the coating composition storage container 14 .
  • the transfer roller 1 can be a chrome-coated steel roller, for example.
  • the counter-roller can have a cover made of EPDM rubber with a hardness of 65 Shore A.
  • the web of material 200 to which the layer of coating composition 100 is applied can be, for example, a web of siliconized paper.
  • the gap between doctor blade 2 and transfer roller 1 can be between 30 and 400 ⁇ m, for example.
  • the rotational speed of the transfer roller 1 can be, for example, 5 to 80 m/min. be.
  • the coating composition layer 100 applied to the material web 200 can have a basis weight of, for example, 30 g/m 2 to 200 g/m 2 .
  • the material data and numerical values mentioned are merely examples and are not intended to limit the subject matter of the invention to corresponding embodiments.
  • figure 4 shows an embodiment of the invention, which is shown in side view and illustrates the flushing area with transfer roller 1, comma blade 2 and a flushing device arranged in the middle between them.
  • the arrow on transfer roller 1 indicates its direction of rotation.
  • the flushing device has in particular a nozzle 19 which initially has an inlet 9 below the coating gap 3 through which coating material is fed through a distributor plate 23 into the flushing chamber 8 .
  • the coating composition is fed into the inlet from the side, ie parallel to the axial directions of the rollers. Feeding preferably takes place from both sides in the area of the end faces of the transfer roller 1 and the comma blade 2 respectively.
  • the mass is distributed first on the sheet metal and then evenly across the width via the large flushing chamber 8.
  • the pressure in the flushing chamber 8 corresponds approximately to the pump pressure the pump 13.
  • the coating mass is then conveyed in the direction of the coating gap 3 and moves along the tapering contour of the flushing chamber 8 in the direction of the outlet nozzle 4, which passes through the squeegee 2 on one side and through the horizontally adjustable inner side of the Nozzle tip 20 is formed.
  • the flushing chamber 8 is sealed towards the squeegee 2 by a flexible seal 23, so that there is no overflow at this point.
  • the converging gap between squeegee 2 and flushing device generates an increase in the speed of the mass.
  • the speed of the surface speed of the transfer roller 1 approaches.
  • the arrows drawn in clarify the direction of movement of the coating composition.
  • the dashed horizontal arrow indicates the direction of adjustment of the flushing device.
  • the gap pressure between comma blade 2 and transfer roller 1 must be lower than in the discharge gap 16 between the nozzle tip 20 and the transfer roller 1. As a result, the mass moves with increasing speed into the coating gap 3. The speed difference between the mass and the surface of the transfer roller 1 is so low , that the mass is not subject to shearing and thus no change in viscosity. This results in an even coating pattern.
  • the theoretically high flow rate generates a resistance that levels off at the overall pressure of the flushing area. It should be noted that the gap seal 21 does not touch the transfer roller 1, but is at a distance of 0.1 mm to 0.2 mm from it.
  • the gap between the gap seal 21 and the transfer roller 1 is therefore very small, so that the speed in this area would have to be very high in order to allow the volumetric flow flowing downwards to pass.
  • the transfer roller 1 rotating in the direction of the discharge gap 16 reduces the leakage, that is, the coating mass that runs over the discharge gap 16 and gap seal 21 in the direction of the outside 10 is reduced by the transfer roller 1 moving in the opposite direction.
  • FIG 5 shows a rear view of the flushing device in a perspective representation.
  • the nozzle tip 20 is arranged on the upper side and initially has a boundary wall 15 in the downward direction, which together with the transfer roller 1 forms the discharge gap 16 . Below this, it tapers to 0.1-0.2 mm due to the gap seal. Coating compound, which overcomes the gap seal 21, runs back into the collection pan 12 via the drainage contour 11 of the outside 10 of the flushing device. Side walls delimit the flushing device at the sides, which each have seals 24, which comprise a front part 24a, which faces the transfer roller 1, and a rear part 24b, which faces the flushing chamber 8 and the comma blade 2, respectively.
  • the flushing chamber 8 is in each case sealed off from the comma hook 2 only via the rear section 24b.
  • the front part 24a of the seal 24, on the other hand, is stepped over the rear part 24b, so that the front part 24a is designed without contact with the transfer roller 1 and has leakage. Coating compound that has spilled over is returned to the compound container via the collecting pan 12 .

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EP19746043.9A 2018-07-31 2019-07-18 Vorrichtung und verfahren zur verarbeitung schersensibler beschichtungsmassen Active EP3829782B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018118559 2018-07-31
PCT/EP2019/069433 WO2020025349A1 (de) 2018-07-31 2019-07-18 Vorrichtung und verfahren zur verarbeitung schersensibler beschichtungsmassen

Publications (2)

Publication Number Publication Date
EP3829782A1 EP3829782A1 (de) 2021-06-09
EP3829782B1 true EP3829782B1 (de) 2023-07-19

Family

ID=67480189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19746043.9A Active EP3829782B1 (de) 2018-07-31 2019-07-18 Vorrichtung und verfahren zur verarbeitung schersensibler beschichtungsmassen

Country Status (8)

Country Link
US (1) US20210308711A1 (pl)
EP (1) EP3829782B1 (pl)
CN (1) CN112512700A (pl)
DE (1) DE102019119557A1 (pl)
DK (1) DK3829782T3 (pl)
ES (1) ES2960549T3 (pl)
PL (1) PL3829782T3 (pl)
WO (1) WO2020025349A1 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3851210A1 (en) * 2020-01-14 2021-07-21 Jesús Francisco Barberan Latorre Applicator roller

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5814970A (ja) * 1981-07-17 1983-01-28 Nisshin Steel Co Ltd 金属帯状材料の連続塗装方法
JPS60143866A (ja) * 1983-12-29 1985-07-30 Konishiroku Photo Ind Co Ltd 塗布方法及びその装置
DE3713278A1 (de) * 1986-04-30 1987-11-05 Will E C H Gmbh & Co Verfahren und vorrichtung zum auftragen einer fliessfaehigen masse auf eine bahn
JP4164168B2 (ja) * 1998-09-14 2008-10-08 富士機械工業株式会社 版胴に対する塗布液供給装置
DE102008019434B4 (de) * 2008-04-17 2013-08-22 Hauni Maschinenbau Ag Beleimung von Materialstreifen der Tabak verarbeitenden Industrie
IT1393302B1 (it) * 2009-03-25 2012-04-20 Gd Spa Dispositivo gommatore e metodo di gommatura di un nastro di materiale d'incarto.
EP3307443B1 (en) * 2015-06-12 2024-05-22 3M Innovative Properties Company Liquid coating method and apparatus with a deformable metal roll

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WO2020025349A1 (de) 2020-02-06
DE102019119557A1 (de) 2020-02-06
DK3829782T3 (da) 2023-10-16
EP3829782A1 (de) 2021-06-09
PL3829782T3 (pl) 2024-01-15
ES2960549T3 (es) 2024-03-05
US20210308711A1 (en) 2021-10-07
CN112512700A (zh) 2021-03-16

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