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WO2011151238A1 - Procédé de production d'une bande fibreuse multicouche enduite - Google Patents

Procédé de production d'une bande fibreuse multicouche enduite Download PDF

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Publication number
WO2011151238A1
WO2011151238A1 PCT/EP2011/058555 EP2011058555W WO2011151238A1 WO 2011151238 A1 WO2011151238 A1 WO 2011151238A1 EP 2011058555 W EP2011058555 W EP 2011058555W WO 2011151238 A1 WO2011151238 A1 WO 2011151238A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
web
fibrous web
drying
coating
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.)
Ceased
Application number
PCT/EP2011/058555
Other languages
German (de)
English (en)
Inventor
Guido Klaunzer
Stephan Hampe
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.)
Voith Patent GmbH
Original Assignee
Voith Patent 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 Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of WO2011151238A1 publication Critical patent/WO2011151238A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/04—Physical treatment, e.g. heating, irradiating
    • D21H25/06—Physical treatment, e.g. heating, irradiating of impregnated or coated paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/80—Paper comprising more than one coating
    • D21H19/84—Paper comprising more than one coating on both sides of the substrate
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
    • D21H23/48—Curtain coaters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • D21H25/14—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod the body being a casting drum, a heated roll or a calender
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/30—Multi-ply

Definitions

  • the invention relates to a process for producing a coated, multi-layer fibrous web, in particular packaging paper or board web in which initially a stream is produced, which successively at least one headbox, at least one wire section to form a multilayer fibrous web, a press section, a dryer section and subsequently fed to a reel.
  • Cardboard and packaging papers are usually dried in their production in the paper machines with drying cylinders of a single-row and / or double-row dryer section. In this case, optional suction elements, especially for web stabilization available.
  • a disadvantage is the high space requirement for such dryer sections and also to view the limited drying capacity. Especially with regard to the required, ever-increasing machine speeds, the drying zones must be formed longer based on the total machine length.
  • the smoothness of the cardboard or packaging paper to be produced is usually produced in the production using conventional calenders, such as hard nip calenders with high maximum pressures and short residence times of the fibrous web in the nip.
  • conventional calenders such as hard nip calenders with high maximum pressures and short residence times of the fibrous web in the nip.
  • the thickness loss of the web affects.
  • the disadvantage here is also a slight increase in smoothness with simultaneous loss of volume.
  • the fibrous web or packaging paper or board web is also painted with a pigment coating. This achieves whiteness, smoothness, gloss and opacity of the web. Also, the printability of the web material is thereby increased, whereby it can serve as an information and advertising medium.
  • the printing is done in addition to digital printing, especially in the form of offset printing and gravure printing.
  • the fibrous web is painted on the cover side at least once.
  • the reverse side may remain uncoated, or will also be painted at least once.
  • coating amounts per side of up to 80g / m 2 are applied.
  • the application has hitherto been carried out with conventional coating units, such as film presses, coater with roller application (LDTA applicators with long exposure time of the coating medium), coater with free-jet nozzles, or with commissioned work with short residence time of the medium on the web (so-called Short Dwell Time Applicators or SDTA).
  • the disadvantage is that only a limited application capacity and thus poor coverage and opacity of the fibrous web or packaging paper and board web can be achieved with these mentioned conventional order types.
  • the object of the invention is achieved by a method according to the features of claim 1.
  • at least one white coating layer is applied to the multi-ply fibrous web by means of at least one curtain applicator unit known per se, and the web is subjected to prior art condensation press drying prior to this coating
  • the advantage of the method consists in the combination of the known process steps or units. For the first time ever, high application capacity, excellent coverage of the web surface and high opacity can be achieved.
  • This condensation press drying is carried out according to the invention after the drying in the dryer section and / or already after the dewatering in the press section.
  • This type of drying with which conventional drying cylinders can be partially saved, should take place in a range in which the web has a dry content of more than 50% to about 90%, preferably more than 55%.
  • One or more such drying should therefore preferably be carried out within the pre-drying section, but it is also conceivable to additionally provide this condensation press drying in the after-dryer section.
  • the said high rate of evaporation and smoothness is due to the fact that the fibrous web is guided with its one side on a heated (preferably steam-heated) cylinder and with its other side on a sieve and an overlying impermeable clothing.
  • a contact pressure with respect to the cylinder is exerted in this section with a, a part of the outer circumference of the cylinder overlapping the pressure hood.
  • the inventors have found that with the stated condensate ons-Presstrocknungsclar a smoother raw paper is produced than before. This leads to an even better coverage of the applied with the curtain applicator white coating layer. Due to the high smoothness of the web, there is a much lower risk of demolishing the curtain during coating, even with low weights or low viscosity of the coating medium used in curtain coating and high web speeds, which is considered to be a particular advantage of the invention.
  • the smoothness before the coating need only be present on one side, because usually the product resulting from the fibrous web produced product is only printed on one side.
  • the fibrous web in at least two layers, namely with a backsheet and a cover layer, wherein the topsheet contains white or bleached and / or deinked and / or wood-free fibers.
  • the process can be expediently formed if the condensation press drying is carried out after drying in the drying section or following the dewatering in the press section.
  • the base paper is coated with a known single or multi-layered curtain applicator.
  • a curtain applicator applies the application medium in a ratio of 1: 1. That means that Order is made without surplus of order maximnn.
  • On the web so only the amount of coating material or pigment-containing application medium is applied, which should also remain there. This saves the doctoring and the corresponding squeegee devices.
  • the at least one coating layer can be applied with a single- or multi-layered curtain applicator in the form of a slot die or a so-called slide die.
  • the production method according to the invention can be formed advantageously by feeding a fines into the head box at the beginning of the production process for the formation of the cover layer of the multilayer fibrous web. This achieves a very smooth top layer.
  • the head box can be designed as a perforated roller headbox or as a hydraulic headbox.
  • at least one headbox is equipped with dilution water control. The advantage of this is that a surface weight profile without adjustment of one of the existing lips is possible. In addition, a desired fiber orientation is achieved.
  • a dilution water control is provided for producing a central layer.
  • An advantage is to be considered that the basis weight cross profile of the entire board web through the location with the largest proportion of the total weight per unit area - which would be the center layer - can be influenced the most.
  • a multi-layer casserole which is fed with different streams.
  • at least one smooth roller is used in the press section, which acts at least on the cover layer. This can be done with the help of a known tandem press with three felts and a smooth roller, which is usually arranged below or with a so-called offset press, in which a nip is performed without any clothing. This measure also contributes to a smoother cover layer, which in turn coat more uniformly leaves.
  • the fibrous web is precoated after drying, but before the coating with the white coating layer or before the curtain application with a known film press. This can be both a glue or a starch job, but also coating paint application. The order can be done only one-sided, but also simultaneously simultaneously in an indirect way.
  • the film press consists of two rollers forming a nip with each other or other support elements, on the outer surface of which the medium is applied with a coating unit and transferred in the nip to the fibrous web. It is very advantageous if the fibrous web is subjected to a smoothing prior to coating with the at least one white coating layer.
  • smoothing is preferably a condensation press smoothing into consideration. This works in a similar way to condensation press drying, whereby the fibrous web is passed over a heated cylinder and brought into direct contact with a metal belt running over the cylinder, above which there is a pressure hood. A sieve or clothing is not available here. Alternatively, a smoothing by belt or belt calender or shoe calender can be done.
  • the Beltkalander consists mainly of the band, more than 70% of plastic.
  • This band may be multi-layered or provided with a coating which rests on the web side (paper side).
  • the cylinder (drying cylinder or smoothing cylinder) is preferably heated in each case with steam, the cylinder surface reaching a temperature between 60 and 250.degree. C., preferably 130 to 190.degree.
  • a further embodiment of the method according to the invention may consist in that the fibrous web after the curtain coating and the possible coating of the other side of the web and the corresponding drying methods, a smoothing (calendering) is carried out in the final group of the manufacturing machine.
  • the calender to be used here has a heating roller and a counter roller with a plastic jacket.
  • the plastic shell in turn has a metallic coating with a thickness of more than 200 ⁇ on. This coating can be vapor-deposited, for example.
  • the cardboard has three layers, which consist of a fiber cover layer of 100% bleached pulp, a middle layer of wood-containing raw material and / or waste paper and a supine (reverse) of bleached pulp or a mixture of Bleached pulp with proportions of wood-containing raw material, which may also be added to shares of waste paper material exist.
  • the back can optionally - as already mentioned - be painted with at least one stroke. Is recycled paper used so can The ld ib V ii F e c e rg n y s s are optionally available in stock preparation .
  • the cardboard has four layers.
  • This protective layer consists either of waste paper pulp or of a mixture of waste paper pulp and wood-containing raw material.
  • the following quality grades can be produced: Depending on the quality of the raw material used and the coating application quantity, a distinction is made between qualities with the following abbreviation, whereby the number 1 indicates the variety with the highest quality.
  • the coating is enriched with plastics.
  • Chromo carton or Folding boxboard is a carton having a basis weight in the range of 160 - 500 g / m 2 with the following characteristics
  • WLC coated board
  • LPB d .h. Liquid packaging board with at least two layers or coated packaging paper
  • CWTTL coated packaging paper
  • the blanket Depending on the quality of the box, the blanket consists of 100% bleached pulp or 100% recycled paper pulp. There are also varieties in which the ceiling consists of a mixture of bleached pulp and waste paper pulp.
  • the blanket is always painted and is either made of bleached pulp or is slightly woody, although the wood pulp may also be bleached.
  • the insert always consists of mixed waste paper pulp or optionally with proportions of mechanical pulp. Each mixing ratio is conceivable.
  • the backside is made of recycled paper stock and may contain bleached and / or unbleached pulp.
  • the back can either be painted or uncoated.
  • customary used paper pulp fractions based on the total product are indicated therein.
  • FIG. 1 shows a representation of a process scheme for producing a multilayer, coated fibrous web
  • FIG. 2 shows a schematic representation of the constant part for producing a substance mixture for the production of a fibrous web according to FIG. 1.
  • FIG. 1 shows a process diagram of the production of a multilayer, coated paper or board web.
  • the mixture of substances originating from a stock preparation S is fed to a wire section I.
  • the wire section consists of three longitudinal wires 2, 5 and 6 to form a multi-ply web B.
  • the wire 2 is used to form a central layer, the wire 4 of the cover layer and the wire 4 is the back formed.
  • the centerline wire 2 is equipped with a headbox with a dilution water control 1, a former 3 (traded by the Applicant's company under the name DuoFormer D) and a sieve shaker 4 (traded by the applicant's company under the name Duo Shake).
  • the substance of the individual layers is sprayed from the corresponding headboxes 1, 1 a onto the respective longitudinal sieves 2, 5, 6 and dewatered thereon. At the points of contact of the Langsiebe the layers are vergautscht together.
  • the layer structure is from bottom to top as follows:
  • lathes but also combinations of four-wire and hybrid formers (eg. Duo D, Duo DK) and combinations of Gapformer (s) and Langsiebe (s) .voreffect.
  • at least one former is equipped with a sieve shaker (e.g. Voith: Duo Shake).
  • a sieve shaker e.g. Voith: Duo Shake.
  • this is preferably the layer with the highest ply surface weight (middle ply).
  • the press section II with presses 7 consists of a double-felted roller press 7.1 in the first nip, a simply felted NipcoFlex Press 7.2 in the second nip and an unfinished offset press 7.3 in the third nip. After the press section 7, the board web reaches dry contents of up to 57%.
  • This pressing concept can be carried out with closed or open web guide.
  • the stasis can also be designed as a cantilever. It is possible to use seamed or seamless felts in press section II.
  • the further drying of the paper web B by means of conventional drying groups 8 takes place within a pre-dryer section III, which here have two-row drying cylinder arrangements.
  • a drying unit with condensing press drying 9 is installed.
  • Such a concept and such a drying unit is described, for example, in EP 0988 41 7 A1, in EP 1 586 698 A1 and in WO 98/55687.
  • This technology is particularly energy-efficient, as in addition to the high specific evaporation (> 40 kg / m2h) there is also a significant increase in the density of the cardboard inside the dryer section hood.
  • the preferred installation position of this condensation press dryer is in a range of more than 50% to about 90% dry content, but mainly above 55% dry content.
  • the integration of one or more of such drying units is preferably carried out in the pre-drying section, but it is also conceivable to use such aggregates in the afterdrying section.
  • This technology is particularly energy-efficient, since in addition to the high specific evaporation (> 40 kg / m.sup.2h), a marked increase in smoothness of the carton within the Dry-particle hood takes place.
  • Preferred installation position of the drying unit 9 is in a range over 50% to about 90% dry content, but mainly above 55% dry content.
  • the integration of one or more such drying units is preferably carried out in the pre-drying section III, but it is also conceivable to provide such units in a after-drying section V.
  • the condensate ons Presstrocknung 9 the advantage of increased evaporation rates and paper smoothing.
  • the corresponding drying units can be installed in line with the conventional dryer section as well as in the machine cellar. The advantage of the installation in the machine cellar is that the drying unit (s) can be taken out of the line and the drying process can only be performed with a conventional dryer section.
  • a condensation press calender is used for a particularly volume-saving and excellent smoothing increase.
  • Such a calender is described for example in EP 1 785 524 A1.
  • the calender is used for Vorglätten.
  • Preferred mounting position of a calender for pre-smoothing is in a range of about 55% to about 90% dry content, but mainly about 60% dry content of the web.
  • a conventional coating unit 1 e.g. a free-jet nozzle assembly, which is arranged downstream of a doctor element and is generally designated 1 1 .1, deleted.
  • a contactless working coating unit 1 2 a curtain coater 12.1 (curtain coater), which may have a slot (slot) or Gleit Hardüse (slide the) coated.
  • a particularly large amount of paint is applied even at increased speeds and a particularly good coverage or surface quality is achieved.
  • a subsequent correction group 15 the top side and the bottom side of the web B are heated to different degrees, whereby the curl of the web (curl) is reduced.
  • This correction group 15 consists of a conventional single-row and / or two-row dryer group (in the example, the drying cylinders are arranged in two rows), which are equipped with and without dryer fabrics at the top and bottom.
  • the correction group 15 is equipped with two drying screens one for the upper and one for the lower row of drying cylinders.
  • the upper and lower drying cylinders within the correction group are heated so that the cylinder surface temperatures differ by at least 10 ° C.
  • the web is calendered.
  • the top layer (Top Ply) is smoothed with a smoothing roller.
  • the roller has a plastic at ag with a thickness between 5 and 50mm, which has a metallic layer on the surface. This layer is ⁇ up to about 200 ⁇ , preferably 5 to 1 00 ⁇ thick.
  • a calender is described in DE 102008044369 A1. Instead of this described calender or the smoothing roll and a shoe caliper can be used. With this smoothing a particularly high gloss effect of the finished paper or cardboard is achieved and reduces micro-roughness.
  • the web B Before the reeling 18 on a scooter without center drive, the web B is still cooled with cooling hoods 17 to temperatures below 70 ° C.
  • the cooling hoods may additionally or alternately also be arranged in front of calenders, within the coating section.
  • the cooling of the web can be done by conventional cooling cylinders or by contactless air cooling (Aircooler).
  • Aircooler contactless air cooling
  • the arrangement before calenders has the advantage that a particularly low volume loss arises during subsequent calendering.
  • the arrangement prior to reeling - as shown in Figure 1 - has the advantage that the thermal change in length of the web is reduced at the scooter, whereby better winding properties are achieved.
  • a calender as here the calender 16 for Nachkalandr réelle, so in the cooling group 17 only that row of cylinders (top or bottom) equipped with a dryer, in which the smoothed side is in contact with the cooling cylinder surface to a If both sides are smoothed, the cooling group 17 can be carried out with or without dryer fabrics, preferably without dryer fabrics
  • a cooling group has the advantage that the absorption and the adhesion of the coating on the board web
  • a cooling group with a dryer screen also has the function of a pull group.
  • the web B in the coating device 1 1 could also be equipped with a commissioned work for gluing, which is carried out primarily as a film press. It is also conceivable to use a so-called size press with size wings, as in DE 10032500 A1.
  • SizeWings An advantage of using SizeWings is that it results in a longer exposure time of the sizing agent to the board web and at the same time avoids the formation of turbulence in the glue sump. This also avoids the risk of foams, which has a negative effect on the carton web properties.
  • the application units can be designed for one-sided or two-sided coating application.
  • Film presses can be used to apply glue or starch, to pigment or to paint.
  • FIG. 2 schematically shows the production of the substance mixture for producing the fibrous web.
  • the above example sketch refers to a constant part of a web-making machine or system in which the top ply, the middle ply and the back ply consist of 100% virgin fiber. Therefore, a cleaner stage is provided in the respective material strand, since this is not intended in the stock preparation.
  • the quantities of material coming from the stock preparation S are premixed in a mixer 20 (ComMix) together with the white water, if appropriate also with additives, for example retention agents.
  • the scrap is preferably mixed into the machine chest of the Middle Ply. It is also conceivable that the committee in the ComMix of Top Ply or Back Ply is led.
  • the suspension is mixed with white water in Hydromix 21.
  • the concentration of the stock suspension after the Hydromix is higher than the headbox concentration with the advantage that a smaller number of assemblies can be selected for the following Cleaner 22 (EcoMizer). Small impurities, eg. B. fine sand, are removed in the EcoMizer 22.
  • Hydromix 21 the other Dilution with white water 1 to the desired headbox concentration and optionally a mixture with additives.
  • a headbox pump 23 the suspension for the destruction of fiber flakes and for final cleaning through the HB Screen 23 (MSA, MST, MSS) out.
  • H B-screen 23 headbox
  • a reduction of substance pulsations is avoided, which avoids material fluctuations in the headbox in the machine direction.
  • the stock suspension can be mixed with the necessary amount of retention agent.
  • the water required for the dilution water control at the headbox of the middle layer is taken from the white water channel and, after processing in the classifier (MSA, MST, MSS), fed to the headbox.

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Abstract

L'invention concerne un procédé de production d'une bande fibreuse multicouche enduite, notamment une bande de papier d'emballage ou de carton, selon lequel est tout d'abord produit un courant de pâte, ledit courant de pâte étant ensuite acheminé jusqu'à au moins une caisse de tête, au moins une partie toile métallique pour la formation d'une bande fibreuse multicouche, une partie presse, une partie de séchage et enfin un dispositif d'enroulage; au moins une couche blanche étant appliquée sur la bande fibreuse produite en multicouche à l'aide d'au moins une coucheuse à rideau (12.1) connue en soi et, avant ce couchage, la bande étant soumise à un séchage par condensation/pressage (9) connu en soi.
PCT/EP2011/058555 2010-06-02 2011-05-25 Procédé de production d'une bande fibreuse multicouche enduite Ceased WO2011151238A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010029615.5 2010-06-02
DE201010029615 DE102010029615A1 (de) 2010-06-02 2010-06-02 Verfahren zur Herstellung einer gestrichenen, mehrlagigen Faserstoffbahn

Publications (1)

Publication Number Publication Date
WO2011151238A1 true WO2011151238A1 (fr) 2011-12-08

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WO (1) WO2011151238A1 (fr)

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CN114667377A (zh) * 2019-11-29 2022-06-24 福伊特专利有限公司 纤维材料幅的涂覆部
WO2022160024A1 (fr) * 2021-01-27 2022-08-04 Klabin S.A. Papier white top kraftliner, procédé de production dudit papier, utilisation de ce papier et emballage
EP3830336B1 (fr) 2018-07-27 2023-02-22 Voith Patent GmbH Procédé et dispositif d'application d'amidon
RU2845077C1 (ru) * 2021-01-27 2025-08-13 Клабин С.А. Бумага вайт-топ крафт-лайнер, способ производства указанной бумаги, применение бумаги и упаковка

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EP3164542A1 (fr) * 2014-07-02 2017-05-10 Voith Patent GmbH Procédé de production de carton pour liquide, dispositif de production de carton pour liquide et carton pour liquide selon ce procédé
DE102020106095A1 (de) * 2020-03-06 2021-09-09 Voith Patent Gmbh Verfahren zu Beschichtung einer Faserstoffbahn
AT526620A1 (de) * 2022-11-08 2024-05-15 Mondi Ag Verfahren zur Herstellung einer bedruckbaren Linerbahn für Verpackungen sowie bedruckbarer Liner für Verpackungen
DE102023102648A1 (de) * 2023-02-03 2024-08-08 Voith Patent Gmbh Trockner zum Trocknen einer gestrichenen Faserstoffbahn
AT526660B1 (de) * 2023-06-14 2024-06-15 Berndorf Band Gmbh Verfahren und Vorrichtung zur Verarbeitung einer Faserstoffbahn mit einer Presszone und einer anschließenden Heizzone
EP4589068A1 (fr) * 2024-01-16 2025-07-23 Mondi AG Procédé de fabrication d'une bande de papier de doublure multicouche et papier de doublure multicouche

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