EP2598694B1 - Procédé de fabrication d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton - Google Patents

Procédé de fabrication d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton Download PDF

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Publication number
EP2598694B1
EP2598694B1 EP11720775.3A EP11720775A EP2598694B1 EP 2598694 B1 EP2598694 B1 EP 2598694B1 EP 11720775 A EP11720775 A EP 11720775A EP 2598694 B1 EP2598694 B1 EP 2598694B1
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EP
European Patent Office
Prior art keywords
fibrous web
coating
machine
curtain
starch
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.)
Revoked
Application number
EP11720775.3A
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German (de)
English (en)
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EP2598694A1 (fr
Inventor
Stephan Hampe
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Voith Patent GmbH
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Voith Patent GmbH
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Filing date
Publication date
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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
    • 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
    • D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
    • D21H23/56—Rolls
    • 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
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—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
    • D21H19/36—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
    • D21H19/82—Paper comprising more than one coating superposed
    • 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
    • D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
    • D21H23/34—Knife or blade type 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
    • 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

Definitions

  • the invention relates to a method for producing a multilayer and coated fibrous web, in particular a paper or board web, wherein the fibrous web is produced in multiple layers in a former section, dewatered in a press section and dried in a pre-dryer section.
  • the document DE10 2008 054 908 A1 discloses a method for multiple coating of a fibrous web, in particular a movable board web with liquid or pastoese application media.
  • a first application medium for producing a first layer and in a subsequent process step at least one further application medium for generating at least one further layer with at least one postdosing applicator applied and in one of the further process steps, at least one further third application medium for generating at least one further applied third layer with a curtain applicator, wherein after each job, the fibrous web is dried. Thickness is applied as the first application medium.
  • the document EP1964971 A2 also discloses a process for the production of coated paper, wherein the fibrous web formed with a headbox and a wire section of a pulp suspension, dewatered in a press section and then dried in a predrying to a residual moisture content. Subsequently, at least one side of the fibrous web is coated with at least three application layers, with the last two application layers being applied with a 1: 1 applicator.
  • White top liners and white top test liners are cardboard sheets, which are usually made up of three layers: top layer, protective layer and supine.
  • the cover layer is the side that will be printed later, it consists of white fresh fiber and is additionally painted. It is important that the page to be printed is as white as possible and as smooth and shiny as possible, and has a good printability.
  • the fibrous web should have good strength properties for further use. This is achieved primarily by the weight per unit area, the choice of pulp and the addition of starch to the pulp suspension.
  • the three layers in the forming section are produced individually and then combined to form a fibrous web.
  • the press section it is then mechanically dewatered under pressure in several press nipples and dried in the subsequent pre-drying section by means of heated drying cylinders.
  • the fibrous web is smoothed in a pre-calender and calibrated to uniform thickness, so that the applied in a subsequent film coater pigment-containing primer a Fibrous web is achieved at a lower basis weight or with lower pulp or more filler, without adverse effects on the other important properties arise.
  • a low frequency of demolition and high runnability, and a lower energy requirement for drying in the machine should result.
  • the object is achieved for the aforementioned method according to the invention that after the pre-dryer section in a subsequent film applicator on the fibrous web is simultaneously applied starch on both sides and that the fibrous web is then painted in the direction of passage only on one side in a curtain coater with pigment-containing paint and the fibrous web after painting in the curtain coater in a blade coater once again coated with pigment-containing paint.
  • a curtain coater much more coating can be applied in one operation than with a film applicator or a blade coater.
  • starch can be applied from both sides to increase the strength, which allows a higher amount of starch application and leads to a higher penetration into the fibrous web, whereby the strength is increased more. That is, the basis weight can be reduced or it can be used in one or more layers of lower quality pulp, such as a poorer waste paper quality, or more filler.
  • the lower tear frequency results in the film applicator in that less viscous starch liquor is applied instead of a higher viscous coating color, and in the curtain coater by the contactless application.
  • An additional benefit is that, after starch has been applied, drying can be done more efficiently in a more efficient manner in contact with heated cylinders than in previous methods with more energy-intensive IR or air dryers.
  • the object is achieved for the aforementioned method according to the invention that after the pre-dryer section in a subsequent film applicator on the fibrous web is simultaneously applied starch on both sides and that the fibrous web is then painted in the direction of passage only on one side in a curtain coater with pigment-containing paint , With a curtain coater much more coating can be applied in one operation than with a film applicator or a blade coater.
  • starch can be applied from both sides to increase the strength, which allows a higher amount of starch application and leads to a higher penetration into the fibrous web, whereby the strength is increased more. That is, the basis weight can be reduced or it can be used in one or more layers of lower quality pulp, such as a poorer waste paper quality, or more filler.
  • the lower tear frequency results in the film applicator in that less viscous starch liquor is applied instead of a higher viscous coating color, and in the curtain coater by the contactless application.
  • An added benefit is that after starch has been applied, drying can be done more efficiently in a more efficient manner in contact with heated cylinders than in previous methods with more energy-intensive IR or air dryers.
  • the starch application in the film applicator can take place and then, however, before the curtain coating, the smoothing in a pre-calender.
  • the surface becomes sufficiently smooth for a good curtain coat, but the consequent compaction and reduction of the water absorbency of the fibrous web takes place only after the starch application.
  • the curtain coating is two-ply or multi-ply, wherein a differently composed coating color is used for at least two of the layers of the curtain coating.
  • a differently composed coating color is used for at least two of the layers of the curtain coating.
  • a quantity of starch based on the dry weight of the starch of 1 to 4 g / m 2 per side, in particular at least 2 g / m 2 per side on the fibrous web.
  • the usual application amount for a pigment-containing precoat by means of a film applicator is approximately 8 g / m 2 .
  • the object is achieved according to the invention for the machine described in the introduction in that after the pre-drying section in the direction of the fibrous web successively has a film applying device applying starch on both sides, then a curtain coater and then a blade coater.
  • the object is also achieved according to the invention, by a machine which after the pre-drying in the direction of the fibrous web successively applying a double-sided thickness applying film applicator, then a pre-calender and then a curtain coater.
  • Both machines are capable of achieving the advantages previously described and of avoiding adverse effects on the quality of the painted surface.
  • the surface before the curtain coat can be prepared so that a good quality can be created by the stroke.
  • a final topcoat may be applied resulting in a smoother surface.
  • the two variants of the machine can be combined with advantage.
  • the machine Due to the lower tendency to tear and the good runnability of the machine according to the invention, it is additionally possible to carry out the machine as an on-line machine, the fibrous web of The former until the roll of finished paper by all the application and coating equipment, drying sections and calenders or smoothing devices can be performed online one after the other without the machine has a Swissrollung therebetween.
  • the drawing shows in Fig.1 a part of a machine according to the invention for carrying out an embodiment of the method according to the invention.
  • Fig.1 shows a preferred embodiment of the machine according to the invention from the pre-dryer section 10 or a machine, as can be used for example for producing a white-top liner or white-top test liner paperboard web according to a preferred embodiment of the method according to the invention.
  • the production of the multilayer board web in a former section and the dewatering thereof in a press section are not shown.
  • the fibrous web 9 is after drying in the pre-dryer section 10 without passing through a smoothing device, fed directly into the film applicator 1 and there applied from both sides with starch, which is applied in the form of an aqueous starch solution or starch suspension over rollers. Thereafter, the fibrous web is deflected around a so-called Airturn around contactless and led to the first after-dryer section (20), in which it is dried by contact with heated drying cylinders to the desired moisture content. Due to the double-sided application of starch to the not yet smoothed fibrous web much starch can be applied and the starch can penetrate far into the interior and so particularly good increase the strength of the fibrous web.
  • the fibrous web is smoothed so that its surface has good properties for subsequent non-contact coating.
  • a curtain coater (3) which in the illustrated embodiment sweeps the top of the fibrous web with a two-ply curtain coat with pigment-containing paint.
  • the two-layer curtain coating is produced by the interaction of a first metering device (3a) for the first curtain layer and a further metering device (3b) for the further curtain layer.
  • a first metering device for the first curtain layer
  • a further metering device 3b
  • different coating colors can be used in the two layers, which allows precise matching to the necessary properties of the different layers.
  • the two-ply curtain coating ensures good and even coverage of the fibrous web.
  • a coating color with less high quality pigment can be used for the base coverage, while in the second curtain layer for fine coverage, medium to higher quality pigment can be used.
  • the coating layer and the fibrous web are first dried without contact, for example with IR driers (4a), which may be provided on one or both sides of the web.
  • IR driers (4a) which may be provided on one or both sides of the web.
  • air dryers can also be used, depending on the amount of coating applied and the coating color.
  • the upper side of the fibrous web with pigment-containing coating color is once more painted to form a cover layer.
  • a coating color is used with high-quality pigment, since the top layer is the later to be printed layer.
  • the Blade coater 6 is shown with a doctor bar, which strips off the excess coating color.
  • flexible or rigid blades may be used.
  • Advantageous for smoothness, gloss and printability of the cover layer is that the blade coater does not work without contact, but that the cover layer is leveled by the doctor blade or the blade and provided with a very smooth surface.
  • the coating layer and the fibrous web are in turn dried without contact. Shown are IR dryer 4b and air dryer 5, with only IR or only air dryer would be conceivable. As soon as the surface is sufficiently dry again, a third after-dryer section 40 follows, where drying is completed with the help of drying cylinders.
  • Both before Vorkalander 2 and before the Fertigkalander 7 moistening facilities may be provided which apply steam and / or water, so that smoothness and gloss further improved and any curl can be further reduced.
  • an online machine and an online process is shown, ie all process steps for producing and refining the fibrous web, in particular starch application, brushing, smoothing done in a machine successively without embaufrollung. Not shown are the rewinding and slitting, which always takes place in a separate machine. However, according to the invention, this also no longer belongs to the manufacture and finishing, since in this case the properties of the fibrous web are no longer changed.

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  • Paper (AREA)

Claims (9)

  1. Procédé de fabrication d'une bande de matière fibreuse White-Top-Liner ou White-Top-Test-Liner (9), dans lequel on fabrique la bande de matière fibreuse en plusieurs couches dans une partie de formeur, on l'essore dans une partie de presse et on la sèche dans une partie de pré-séchage (10), caractérisé en ce que l'on dépose ensuite sur la bande de matière fibreuse, simultanément sur les deux faces, de l'amidon dans un dispositif de dépôt de film (1), et en ce que l'on enduit ensuite la bande de matière fibreuse dans la direction de défilement uniquement sur une face dans un dispositif d'enduction en rideau (3) avec une couleur contenant des pigments, puis en ce que l'on enduit la bande de matière fibreuse (9), après l'enduction dans le dispositif d'enduction en rideau (3), encore une fois dans un dispositif d'enduction à lame (6) sur une seule face avec une couleur contenant des pigments.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on expose la bande de matière fibreuse (9), directement après la partie de pré-séchage (10), à de l'amidon dans le dispositif de dépôt de film (1) et, seulement après dans la direction de défilement, mais encore avant le dispositif d'enduction en rideau (3), on la lisse dans une pré-calandre (2).
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on enduit la bande de matière fibreuse (9) avec un enduit en rideau en deux couches ou en plusieurs couches dans le dispositif d'enduction en rideau (3), dans lequel on utilise pour au moins deux des couches de l'enduit en rideau une substance d'enduction de composition différente.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on dépose dans le dispositif de dépôt de film (1) une quantité d'amidon, rapportée au poids à sec de l'amidon, de 1 à 4 g/m2 par face sur la bande de matière fibreuse (9).
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on dépose dans le dispositif d'enduction en rideau (3) une quantité d'enduit, rapportée au poids à sec de l'enduit, de 10 à 30 g/m2, en particulier de 12 à 25 g/m2.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que toutes les étapes de procédé jusqu'au papier terminé, dans lesquelles la bande de matière fibreuse est enduite ou séchée ou lissée, sont exécutées l'une après l'autre en ligne sans enroulement intermédiaire dans une machine, dans lequel ladite une machine s'étend depuis la partie de formeur jusqu'à l'enroulement (8) du papier terminé.
  7. Machine pour la fabrication d'une bande de matière fibreuse White-Top-Liner ou White-Top-Test-Liner en plusieurs couches (9), en particulier suivant le procédé décrit dans l'une quelconque des revendications précédentes, qui présente une partie de formeur, une partie de presse et une partie de pré-séchage (10), caractérisée en ce qu'elle présente, l'un après l'autre dans la direction de défilement de la bande de matière fibreuse (9), un dispositif de dépôt de film (1) déposant de l'amidon sur les deux faces, puis un dispositif d'enduction en rideau (3) et ensuite un dispositif d'enduction à lame (6).
  8. Machine pour la fabrication d'une bande de matière fibreuse en plusieurs couches (9), en particulier une bande de papier ou de carton, en particulier suivant le procédé décrit dans l'une quelconque des revendications 1 à 6, qui présente une partie de formeur, une partie de presse et une partie de pré-séchage (10), caractérisée en ce qu'elle présente, l'un après l'autre dans la direction de défilement de la bande de matière fibreuse (9), un dispositif de dépôt de film (1) déposant de l'amidon sur les deux faces, puis une pré-calandre (2) et ensuite un dispositif d'enduction en rideau (3).
  9. Machine selon la revendication 7 ou 8, caractérisée en ce que la machine est constituée par une machine en ligne, dans laquelle la bande de matière fibreuse (9) peut être conduite de la partie de formeur jusqu'à l'enroulement (8) du papier terminé à travers tous les dispositifs de dépôt et d'enduction, les parties de séchage et les calandres ou les dispositifs de lissage, l'un après l'autre, sans que la machine présente entre eux un enroulement intermédiaire.
EP11720775.3A 2010-07-28 2011-05-20 Procédé de fabrication d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton Revoked EP2598694B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010038530 DE102010038530A1 (de) 2010-07-28 2010-07-28 Verfahren zur Herstellung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn
PCT/EP2011/058262 WO2012013384A1 (fr) 2010-07-28 2011-05-20 Procédé de fabrication d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton

Publications (2)

Publication Number Publication Date
EP2598694A1 EP2598694A1 (fr) 2013-06-05
EP2598694B1 true EP2598694B1 (fr) 2016-03-30

Family

ID=44486078

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11720775.3A Revoked EP2598694B1 (fr) 2010-07-28 2011-05-20 Procédé de fabrication d'une bande de matière fibreuse, en particulier d'une bande de papier ou de carton

Country Status (4)

Country Link
EP (1) EP2598694B1 (fr)
CN (1) CN103025958B (fr)
DE (1) DE102010038530A1 (fr)
WO (1) WO2012013384A1 (fr)

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JP2014208934A (ja) * 2013-03-28 2014-11-06 日本製紙株式会社 塗工白板紙およびその製造方法
JP6553926B2 (ja) 2015-04-09 2019-07-31 キヤノン株式会社 インプリント装置、インプリント方法、および物品の製造方法
DE102017118218A1 (de) * 2017-08-10 2019-02-14 Voith Patent Gmbh Maschine und verfahren zur herstellung einer faserstoffbahn
DE102019134177A1 (de) * 2019-12-12 2021-06-17 Voith Patent Gmbh Maschine und Verfahren zur Herstellung einer Faserstoffbahn

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WO2001054828A1 (fr) 2000-01-26 2001-08-02 Tetra Laval Holdings & Finance S A Procede de fabrication d'un lamine d'emballage multicouche et lamine d'emballage obtenu selon ce procede
DE102005021983A1 (de) 2005-05-12 2006-11-16 Voith Patent Gmbh Verfahren zum Beschichten einer laufenden Kartonbahn
EP1908878A1 (fr) 2005-06-20 2008-04-09 Daio Paper Corporation Procédé de fabrication de papier couché et papier couché
DE102008054908A1 (de) 2008-12-18 2010-06-24 Voith Patent Gmbh Verfahren zur mehrfachen Beschichtung einer Faserstoffbahn, insbesondere bewegbaren Kartonbahn und Vorrichtung zur Behandlung und/oder Veredelung von Faserstoffbahnen, insbesondere zum mehrschichtigen Auftrag von flüssigen oder pastösen Auftragsmedien
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DE102005021983A1 (de) 2005-05-12 2006-11-16 Voith Patent Gmbh Verfahren zum Beschichten einer laufenden Kartonbahn
EP1908878A1 (fr) 2005-06-20 2008-04-09 Daio Paper Corporation Procédé de fabrication de papier couché et papier couché
DE102008054908A1 (de) 2008-12-18 2010-06-24 Voith Patent Gmbh Verfahren zur mehrfachen Beschichtung einer Faserstoffbahn, insbesondere bewegbaren Kartonbahn und Vorrichtung zur Behandlung und/oder Veredelung von Faserstoffbahnen, insbesondere zum mehrschichtigen Auftrag von flüssigen oder pastösen Auftragsmedien
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Also Published As

Publication number Publication date
CN103025958A (zh) 2013-04-03
DE102010038530A1 (de) 2012-02-02
WO2012013384A1 (fr) 2012-02-02
EP2598694A1 (fr) 2013-06-05
CN103025958B (zh) 2016-04-13

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