WO2010089182A1 - Procédé de fabrication d'une bande de matière fibreuse à plusieurs épaisseurs et dispositif de formation de feuille permettant de mettre en oeuvre le procédé - Google Patents

Procédé de fabrication d'une bande de matière fibreuse à plusieurs épaisseurs et dispositif de formation de feuille permettant de mettre en oeuvre le procédé Download PDF

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Publication number
WO2010089182A1
WO2010089182A1 PCT/EP2010/050550 EP2010050550W WO2010089182A1 WO 2010089182 A1 WO2010089182 A1 WO 2010089182A1 EP 2010050550 W EP2010050550 W EP 2010050550W WO 2010089182 A1 WO2010089182 A1 WO 2010089182A1
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WO
WIPO (PCT)
Prior art keywords
layer
former
layers
casserole
gap
Prior art date
Application number
PCT/EP2010/050550
Other languages
German (de)
English (en)
Inventor
Stephan Hampe
Jean Yves Nouaze
Jürgen Prössl
Wolfgang Schwarz
Manfred Feichtinger
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 WO2010089182A1 publication Critical patent/WO2010089182A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F9/00—Complete machines for making continuous webs of paper
    • D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
    • D21F9/006—Complete machines for making continuous webs of paper of the twin-wire type paper or board consisting of two or more layers
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers

Definitions

  • Such a method and such a sheet forming device are known for example from European patent application EP 1 262 596 A2 known. It is envisaged to feed the multilayer headbox or the like with at least two of the following substance fractions: long-fiber fraction, long-fiber / short-fiber fraction, short-fiber fraction, fine-poor fraction, low-fines / fine-rich fraction or fine-material-rich fraction.
  • This provision improves the performance of the multi-ply fibrous web making machine of this sheet forming apparatus and the runnability as well as the properties of the fibrous web required for further finishing and final use. As a consequence, natural resources are also used more efficiently, ultimately helping the environment. However, the total costs per net register ton of paper are also reduced, which increases the profit accordingly.
  • a first layer comprising a backing layer and at least one protective layer is formed with a second former, which is designed as a gap former and associated with a multi-layer material casserole, in particular a two-layer casserole. formed as a wire former shaper, which is associated with a Ein Anlagenenstoffauflauf, a second layer comprising a cover layer is formed and that the two layers formed by means of a Gautschelements, in particular a Gautschwalze be vergautscht together.
  • a gap former is known, for example, from German published patent application DE 198 03 591 A1 ("DuoFormer Base").
  • Such a first Spaltformer is for example from the German Published Patent Application DE 198 03 591 A1 ("DuoFormer Base"), whereas such a second gap former is known, for example, from European Patent Application EP 0 851 058 A2 ("DuoFormer Top”).
  • a first layer comprising at least one backing layer and a protective layer is formed with a second former formed as a gap former to which a multi-layer headbox, in particular a two-layer headbox, is associated , as a gap former formed shaper, which is assigned to a Einetzenstoffauflauf, a second, a cover layer comprising layer is formed, and that the two layers formed by a Gautschelements, in particular a Gautschwalze be vergautscht together.
  • This embodiment according to the invention provides the advantages of higher machine speeds and improved covers.
  • a fifth embodiment according to the invention that with a first formed as a gap former shaper, which is associated with a multi-layer headbox, in particular a two-layer casserole, a first, a back or cover layer and at least a first protective layer comprehensive layer is formed, a second layer comprising at least one second protective layer and a cover or backing layer is formed with a second former designed as a gap former to which a multilayer headbox, in particular a two-layer headbox is assigned, and in that the two layers formed by means of a rubber element , in particular a Gautschwalze be vergautscht together.
  • This embodiment according to the invention provides the advantages of higher machine speeds and improved transverse and longitudinal profiles.
  • Such a first Gap former is known, for example, from German published patent application DE 198 03 591 A1 ("DuoFormer Base"), whereas such a second gap former is known, for example, from European patent application EP 0 851 058 A2 ("DuoFormer Top”).
  • the object according to the invention is achieved according to the invention in a sheet forming device of the type mentioned above in that two adjacent layers having a respective whiteness of the multilayer fibrous web have a whiteness difference of ⁇ 30 points, preferably ⁇ 25 points, in particular ⁇ 20 points.
  • Each of the five embodiments of the method according to the invention requires only the use of a single "TopFormer" for producing a multi-ply fibrous web and all the resulting advantages, such as a reduction of maintenance costs due to fewer screens and shorter screen lengths.
  • a box can be arranged on the suction device opposite side of the two wires, the maximum of three deflectors, preferably a maximum of two deflectors, in particular two Deflek- gates comprises.
  • this multi-ply fibrous web may be a White Top Test Liner ("WTTL”) or a White Top Kraft Liner (“WTKL”).
  • WTTL White Top Test Liner
  • WTKL White Top Kraft Liner
  • the second, as a fourdrinier 4.1 formed former 4 is assigned a Ein Anlagenenstoffauflauf 15, wherein by means of this second former 4, 4.1 a second, a cover layer S13 comprising layer B1 is formed.
  • the second former 4, 4.1 in this case comprises an endlessly circulating long sieve 16, which is initially guided horizontally over a plurality of forming and dewatering elements known to those skilled in the art, before it is then guided steeply downwards.
  • This steeply downward section includes with an imaginary vertical V an angle ß, which is also in the range between 10 and 50 °.
  • the angle ⁇ is preferably less than 45 °.
  • 18, 18.1 comprises two continuous endless screens 6, 7, of which the first long wire 6 over a peripheral portion 9 of a forming roller 8 and the second short
  • the angle ⁇ is preferably less than 45 °.
  • a deflection device 14 is arranged, which deflects the two screens 6, 7 and the different fiber pulp suspensions or partial pulp streams of different composition for the layers S21, S22.
  • the deflecting device 14 is formed, for example, as a guide roller 14.1, in particular a Siebsaugwalze, and it steers the two wires 6, 7, as is known, from the steeply downwardly leading path in egg n s substantially horizontal or slightly rising portion. Subsequently, in a known manner, the separation of the short wire 7 from the long wire 6 with the two lying thereon, the layer A2 forming layers S21, S22.
  • the first former 18, 18.1 and its associated multi-layer headbox 5 of the sheet forming system 1 thus serve to form the first, the backsheet S21 and the protective layer S22 comprising layer A2, with respect to the further embodiment of this first former 18, 18.1 to the German Offenlegungsschrift DE 198 03 591 A1 ("DuoFormer Base") is referenced.
  • the first designed as a gap former 18.1 former 18, which is a multi-layer headbox 5, in particular a two-layer casserole is assigned, a first, a backsheet S21 and a protective layer S22 comprising layer A2 formed.
  • the second designed as a hybrid former 19.1 former 19, which is associated with a Ein Anlagenenstoffauflauf 15, a second, comprising a cover layer S23 layer B2 is formed.
  • the two layers A2, B2 formed are gummed together by means of a rubber element 17, in particular a skin roller 17.1.
  • the sheets A3, B3 comprising sheets formed by a respective former 22, 23 and having at least one respective whiteness layer S31, S32, are laminated with each other, one of the former 23 for producing a plurality of whiteness Layers S32, S33 comprehensive layer B3 is associated with a multi-layer casserole, which is fed with at least two different pulp suspensions or partial streams of matter of different composition for different layers.
  • a multilayer headbox is known, for example, from German Laid-Open Application DE 10 2006 033 847 A1.
  • a deflection device 14 is arranged, which deflects the two wires 6, 7 and the pulp suspensions located therebetween or the intermediate partial material flow for the layer S31.
  • the deflection device 14 is formed, for example, as a guide roller 14.1, in particular a Siebsaugwalze, and it directs the two wires 6, 7, as known per se, from the steeply downwardly leading path in a substantially horizontal or slightly rising portion. Subsequently, in a known manner, the separation of the short wire 7 from the long wire 6 with the layer S31 thereon.
  • the first former 22, 22.1 and its associated single-layer casserole 15 of the sheet-forming system 1 thus serve to form the first layer A3 comprising the cover layer S31, with respect to the further embodiment of this former 22, 22.1 referring to the German patent application DE 198 03 591 A1 (" DuoFormer Base ").
  • the second, as a gap shaper 23.1 formed former 23 is assigned to the formed as a two-layer casserole multi-layer casserole 5, wherein by means of this second former 23, 23.1 a second, a protective layer S32 and a backsheet S33 comprising layer B3 is formed.
  • the former 23, 23. 1 comprises two continuous endless screens 24, 25, of which the first screen 24 runs over a circumferential area 9 of a forming roller 8 and the second screen 25 over a peripheral area 11 of a breast roller 10.
  • the second sieve 25 is running thereafter in the region of the forming roller 8 on the first screen 24 to form a wedge-shaped Stoffeinvierspalts 12, the two different pulp suspensions or material streams of different composition for the layers S32, S32 receives directly from the associated multi-layer casserole.
  • the two screens 24, 25 form a twin-wire section 13, in which the two wires 24, 25 and the intermediate different pulp suspensions or material streams of different composition for the layers S32, S33 are guided over the forming roller 8 and then steeply downwards.
  • the steeply downward section of the twin-wire section 13 includes, with an imaginary vertical V, an angle ⁇ which lies in the range between 10 and 50 °.
  • the angle ⁇ is preferably less than 45 °.
  • a first layer A3 comprising a top layer S31 is formed with the first former 22, which is designed as a gap former 22.1 and is assigned a single-layer headbox 15. And with the second, in turn formed as a gap shaper 23.1 former 23, which is associated with a multi-layer casserole 5, a second, at least one protective layer S32 and a backing layer S33 comprising layer B3 is formed. Subsequently, the two layers A3, B3 formed by a Gautschelements 17, in particular a Gautschwalze 17.1 vergautscht each other.
  • FIG. 4 shows a schematic representation of a fourth exemplary embodiment of a sheet forming system 1 according to the invention for a machine for producing a multilayer fibrous web 2.
  • the layers A4, B4 formed by a respective former 26, 27 and including at least one layer having respective whiteness S41, S42, S43 are interlaced with each other, one of the former 26 for producing a plurality of whiteness Layers S41, S42 comprising A4 is associated with a multi-layer casserole, which is fed with at least two different pulp suspensions or partial streams of material of different composition for different layers.
  • a multi-layer casserole is known, for example, from German published patent application DE 10 2006 033 847 A1.
  • the first, as a gap former 26.1 formed former 26 is a multi-stratified material casserole 5 associated with, by means of this first former 26, 26.1 a first, a backsheet S41 and a protective layer S42 comprehensive position A4 is formed.
  • the former 26, 26. 1 comprises two continuous endless screens 6, 7, of which the first long screen 6 runs over a circumferential region 9 of a forming roller 8 and the second short sieve 7 over a peripheral region 11 of a breast roller 10.
  • the second short wire 7 then runs in the region of the forming roller 8 on the first long wire 6 to form a wedge-shaped material inlet gap 12, which receives directly from the associated Ein Anlagenenstoffauflauf 15, the pulp suspension or the material flow for the layer S31.
  • the first former 26, 26.1 and its associated multi-layer headbox 5 of the sheet forming system 1 thus serve to form the first layer comprising the backsheet S41 and the protective layer S42 A4, with respect to the further embodiment of this former 26, 26.1 to the German Offenlegungsschrift DE 198 03 591 A1 ("DuoFormer Base") is referenced.
  • the second, formed as a gap shaper 27.1 former 27 is formed as a two-layer casserole trained Ein Anlagenenstoffauflauf 15, wherein by means of this second former 27, 27.1 a second, a cover layer S43 comprising layer B4 is formed.
  • the former 27, 27.1 comprises two continuous endless screens 24, 25, of which the first screen 24 runs over a peripheral region 9 of a forming roller 8 and the second screen 25 over a circumferential region 11 of a breast roller 10.
  • the second screen 25 then runs in the region of the forming roller 8 on the first screen 24 to form a wedge-shaped Stoffeinlaufspalts 12 which receives directly from the associated Ein Anlagenenstoffauflauf 15 the pulp suspension or the partial flow of material for the layer S43.
  • the two wires 24, 25 form a twin-wire section 13, in which the two wires 24, 25 and the fibrous suspension between them or the intermediate partial stream of material for the layer S43 are passed over the forming roller 8 and then steeply downwards.
  • the screen 25 with the layer B4 is then guided over a deflection device 14, which is designed as a Gautschelement 17 known in the art, in particular a Gautschwalze 17.1 for Vergautschung the two layers formed A4, B4.
  • the sheet forming apparatus 1 shown in FIG. 4 is outstandingly suitable for carrying out the method according to the invention for producing a multilayer fibrous web 2, in particular a multilayer cardboard or packaging paper web.
  • a whiteness layer S41, S42; S42, S43 of the multi-ply fibrous web 2 has a whiteness difference of ⁇ 30 points, preferably of ⁇ 25 points, in particular of ⁇ 20 points.
  • the layers A5, B5 formed by a respective former 28, 29 and having at least one respective whiteness layer S51, S521, S522, S53 are interleaved, each of the formers 28, 29 for producing a plurality , A5, B5, S521, S522, S53 comprising layers A5, B5, a respective multi-layer headbox 5 is associated with at least two different pulp suspensions or partial streams of different composition for different layers is charged.
  • a multi-layer casserole is known, for example, from German published patent application DE 10 2006 033 847 A1.
  • the first, as a gap former 28.1 formed former 28 is associated with the formed as a two-layer casserole multi-layer casserole 5, wherein by means of this first former 28, 28.1 a first, a back or cover layer S51 and a first protective layer S521 comprehensive layer A5 is formed. Since the arrangement and the configuration of the assemblies 28, 28.1, 5 correspond in principle to the arrangement and the design of the assemblies 26, 26.1, 5 of Figure 4, reference is made at this point to this description of figures.
  • the first former 28, 28.1 and its associated multi-layer casserole 5 of the sheet forming system 1 thus serve to form the first, the back or cover layer S51 and the first protective layer S521 comprehensive layer A5, with respect to the further embodiment of this first former 28, 28.1 on German Laid-Open Patent DE 198 03 591 A1 ("DuoFormer Base") is referenced.
  • the second former 29, 29.1 and its associated multilayer headbox 5 of the sheet forming system 1 thus serve to form the second, the second
  • the sheet forming apparatus 1 shown in FIG. 5 is outstandingly suitable for carrying out the method according to the invention for producing a multilayer fibrous web 2, in particular a multilayer cardboard or packaging paper web.
  • a multilayer fibrous web 2 in particular a multilayer cardboard or packaging paper web.
  • S51, S521; S521, S522; S522, S53 of the multilayer fibrous web 2 has a whiteness difference of ⁇ 30 points, preferably of ⁇ 25 points, in particular of ⁇ 20 points.
  • a drainage device 30 is arranged at least in sections, which preferably has a jet channel 31 and which comprises a suction channel 32 directly or indirectly downstream of the jet channel 31 and preferably controllable / controllable with at least one, a plurality of suction strips 34 having suction zone 33.
  • a box 35 is arranged, the maximum of three deflectors 36, preferably a maximum of two deflectors 36, in particular two deflectors 36 includes.
  • the sheet forming apparatus 1 shown in each case in Figures 1 to 5 is, as already stated, in an excellent manner for carrying out the method according to the invention for producing a multi-ply fibrous web 2, in particular a multi-ply cardboard or packaging paper web.
  • two adjacent layers having a respective whiteness have S11, S12, S12, S13; S21, S22, S22, S23; S31, S32, S32, S32, S33; S41, S42, S42, S43; S51, S521, S521, S522, S522, S53 of the multi-ply fibrous web 2 has a whiteness difference of ⁇ 30 points, preferably ⁇ 25 points, in particular ⁇ 20 points.
  • EN 643-2-05-00 Office waste paper, sorted
  • EN 643-2-06-00 Biller-00
  • Square Akten EN 643-3-04-00
  • White chips with light touch, woodfree EN 643-3-10-00
  • Multi horr EN 643-3-16-00
  • White coated paper, woodfree, without adhesive backing EN 643-3-18-01
  • the ceiling layer S13; S23; S31; S43; S51, S53 at least using at least one of the waste grades EN 643-1 -11 -00 ("deinking")
  • EN 643-2-05-00 Office waste paper graded
  • EN 643-2-06-00 Colorful files "
  • EN 643-3-04-00 White chips with light touch, wood free
  • EN 643-3-10-00 EN 643-3-18-01
  • White uncoated chips, woodfree and / or
  • the sheet forming device 1 according to the invention shown in each case in FIGS. 1 to 5 is outstandingly suitable for use in a machine for producing a multilayer fibrous web, in particular a multilayer board or wrapping paper web.
  • a multi-ply fibrous web in particular a multi-ply paperboard or packaging paper web, can be produced in an outstanding manner by the method according to the invention and / or by the sheet forming apparatus according to the invention.
  • the multi-ply fibrous web to be produced, in particular multi-ply cardboard or packaging paper web can of course also have more than the three layers (see Figures 1 to 4) or four (see Figure 5) shown layers for the multiple layers.
  • the multilayer fibrous web to be produced, in particular multi-ply cardboard or packaging paper web can have more than the two illustrated layers (see Figures 1 to 5).

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Abstract

L'invention concerne un procédé ainsi qu'un dispositif de fabrication d'une bande de matière fibreuse à plusieurs épaisseurs (2), en particulier d'une bande de carton ou de papier d'emballage à plusieurs épaisseurs, les épaisseurs (A1, B1; A2, B2; A3, B3; A4, B4; A5, B5) formées par un dispositif de formage respectif (3, 3.1, 4, 4.1; 18, 18.1, 19, 19.1; 22, 22.1, 23, 23.1; 26, 26.1, 27, 27.1; 28, 28.1, 29, 29.1) et comprenant au moins une couche (S11, S12, S13; S21, S22, S23; S31, S32, S33; S41, S42, S43; S51, S521, S522, S53) présentant un degré de blanc respectif, étant couchées ensemble. Le procédé ou le dispositif selon l'invention sont caractérisés en ce que deux couches voisines (S11, S12, S12, S13; S21, S22, S22, S23; S31, S32, S32, S32, S33; S41, S42, S42, S43; S51, S521, S521, S522, S522, S53), de la bande de matière fibreuse à plusieurs épaisseurs (2), présentant un degré de blanc respectif, présentent une différence de degré de blanc < 30 points, de préférence < 25 points, en particulier < 20 points.
PCT/EP2010/050550 2009-02-06 2010-01-19 Procédé de fabrication d'une bande de matière fibreuse à plusieurs épaisseurs et dispositif de formation de feuille permettant de mettre en oeuvre le procédé WO2010089182A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009000696A DE102009000696A1 (de) 2009-02-06 2009-02-06 Verfahren zur Herstellung einer mehrlagigen Faserstoffbahn und Blattbildungsvorrichtung zur Durchführung des Verfahrens
DE102009000696.6 2009-02-06

Publications (1)

Publication Number Publication Date
WO2010089182A1 true WO2010089182A1 (fr) 2010-08-12

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PCT/EP2010/050550 WO2010089182A1 (fr) 2009-02-06 2010-01-19 Procédé de fabrication d'une bande de matière fibreuse à plusieurs épaisseurs et dispositif de formation de feuille permettant de mettre en oeuvre le procédé

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DE (1) DE102009000696A1 (fr)
WO (1) WO2010089182A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011005540A1 (de) 2011-03-15 2012-09-20 Voith Patent Gmbh Herstellverfahren für eine Faserstoffbahn
DE102011083308A1 (de) 2011-09-23 2013-03-28 Voith Patent Gmbh Blattbildungsvorrichtung für eine Maschine zur Herstellung einer Faserstoffbahn aus wenigstens einer Faserstoffsuspension
DE102020111375A1 (de) * 2020-04-27 2021-04-29 Voith Patent Gmbh Formierpartie mit Entwässerungsvorrichtung nach Gautschwalze

Citations (12)

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Publication number Priority date Publication date Assignee Title
DE3417487A1 (de) 1984-05-11 1985-11-21 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum auftragen einer fluessigkeit auf eine laufende bahn
DE4026021A1 (de) 1990-08-17 1992-02-27 Voith Gmbh J M Pressenpartie einer papiermaschine
DE4218595A1 (de) 1992-06-05 1993-12-09 Voith Gmbh J M Maschine zur Herstellung einer Faserstoffbahn
DE4019593C2 (de) 1990-06-20 1994-01-20 Voith Gmbh J M Stoffauflauf für Papiermaschinen
DE4402274A1 (de) 1994-01-27 1994-06-16 Voith Gmbh J M Doppelsiebpartie
EP0851058A2 (fr) 1996-12-11 1998-07-01 Voith Sulzer Papiermaschinen GmbH Partie humide et procédé pour former une bande de papier multi-couches
WO1998052858A1 (fr) 1997-05-16 1998-11-26 Voith Sulzer Papiertechnik Patent Gmbh Procede de bobinage continu d'une bande de materiau et bobineuse correspondante
DE19803591A1 (de) 1998-01-30 1999-08-05 Voith Sulzer Papiertech Patent Doppelsieb-Former
EP1138822A2 (fr) * 2000-03-30 2001-10-04 Voith Paper Patent GmbH Dispositif pour la fabrication d' une bande fibreuse à plusieurs couches
EP1262596A2 (fr) 2001-05-07 2002-12-04 Voith Paper Patent GmbH Section de formage et procédé de formation d'une feuille
EP1365067A1 (fr) * 2002-05-25 2003-11-26 Voith Paper Patent GmbH Section de formage
DE102006033847A1 (de) 2006-07-21 2008-01-24 Voith Patent Gmbh Stoffauflauf einer Maschine zur Herstellung einer Faserstoffbahn

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3417487A1 (de) 1984-05-11 1985-11-21 J.M. Voith Gmbh, 7920 Heidenheim Vorrichtung zum auftragen einer fluessigkeit auf eine laufende bahn
DE4019593C2 (de) 1990-06-20 1994-01-20 Voith Gmbh J M Stoffauflauf für Papiermaschinen
DE4026021A1 (de) 1990-08-17 1992-02-27 Voith Gmbh J M Pressenpartie einer papiermaschine
DE4218595A1 (de) 1992-06-05 1993-12-09 Voith Gmbh J M Maschine zur Herstellung einer Faserstoffbahn
DE4402274A1 (de) 1994-01-27 1994-06-16 Voith Gmbh J M Doppelsiebpartie
EP0851058A2 (fr) 1996-12-11 1998-07-01 Voith Sulzer Papiermaschinen GmbH Partie humide et procédé pour former une bande de papier multi-couches
WO1998052858A1 (fr) 1997-05-16 1998-11-26 Voith Sulzer Papiertechnik Patent Gmbh Procede de bobinage continu d'une bande de materiau et bobineuse correspondante
DE19803591A1 (de) 1998-01-30 1999-08-05 Voith Sulzer Papiertech Patent Doppelsieb-Former
EP1138822A2 (fr) * 2000-03-30 2001-10-04 Voith Paper Patent GmbH Dispositif pour la fabrication d' une bande fibreuse à plusieurs couches
EP1262596A2 (fr) 2001-05-07 2002-12-04 Voith Paper Patent GmbH Section de formage et procédé de formation d'une feuille
EP1365067A1 (fr) * 2002-05-25 2003-11-26 Voith Paper Patent GmbH Section de formage
DE102006033847A1 (de) 2006-07-21 2008-01-24 Voith Patent Gmbh Stoffauflauf einer Maschine zur Herstellung einer Faserstoffbahn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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