EP0863254A2 - Procédé et machine à papier pour la fabrication d'une bande fibreuse multi-couches - Google Patents

Procédé et machine à papier pour la fabrication d'une bande fibreuse multi-couches Download PDF

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Publication number
EP0863254A2
EP0863254A2 EP97121015A EP97121015A EP0863254A2 EP 0863254 A2 EP0863254 A2 EP 0863254A2 EP 97121015 A EP97121015 A EP 97121015A EP 97121015 A EP97121015 A EP 97121015A EP 0863254 A2 EP0863254 A2 EP 0863254A2
Authority
EP
European Patent Office
Prior art keywords
former
layer
paper machine
formers
forming roller
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.)
Granted
Application number
EP97121015A
Other languages
German (de)
English (en)
Other versions
EP0863254A3 (fr
EP0863254B1 (fr
Inventor
Günther Dr. Halmschlager
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 Sulzer Papiermaschinen GmbH
Voith Sulzer Papiertechnik 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 Sulzer Papiermaschinen GmbH, Voith Sulzer Papiertechnik Patent GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP0863254A2 publication Critical patent/EP0863254A2/fr
Publication of EP0863254A3 publication Critical patent/EP0863254A3/fr
Application granted granted Critical
Publication of EP0863254B1 publication Critical patent/EP0863254B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • D21F11/14—Making cellulose wadding, filter or blotting paper
    • 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

  • the invention relates to a method for producing a multilayer fibrous web, in which from a first headbox a first layer is formed on a first former and at least from a second headbox on a second former a second layer is formed that is fixed to the first Layer is connected.
  • the invention further relates to a papie machine for manufacturing a multilayer fibrous web, with a first headbox to form a first layer of the fibrous web on one first former, and with a second headbox for formation at least a second layer on a second former, the is firmly attached to the first layer.
  • the top sieve of this Twin wire former also forms the bottom wire of one downstream twin wire former, on which another layer on the previously created layer is applied.
  • the layer formation takes place according to the crescent former principle by dewatering around a forming roller between a felt on the side facing the forming roller and a sieve the side facing away from the forming roller.
  • Such a former is formed by the use of a felt band especially for the production of thin, less tearproof papers, such as tissue papers.
  • multi-ply tissue papers such as multi-ply
  • should Toilet paper or paper tissues are produced so this is done according to the state of the art, using finished webs to be laid one on top of the other to form multilayer sheets.
  • the object of the invention is therefore a paper machine and a method of manufacturing a multilayer Develop fibrous web, with at least two firm interconnected layers are generated separately, whereby also the production of thin, less tear-resistant individual layers should be made possible.
  • This object is achieved according to the invention in a method of the type mentioned solved in that at least one of the two formers the layer formation between one over a forming roller guided felt belt and a sieve.
  • a method for producing a multilayer fibrous web in which one First material on a first former on a first shaper is formed and from a second headbox to a second Shaper at least a second layer is formed that is firm is connected to the first layer, according to the invention the layer formation between at least on one of the two formers a felt belt passed over a forming roll and the sieve he follows.
  • the second former the layer formation between one over the Forming roller guided felt belt and a sieve.
  • thin fiber composites can also be used produce several very thin individual layers.
  • the first Layer on the felt belt passed over the forming roll to the other former and is on the felt belt over the other Forming roller guided.
  • This measure has the advantage of being complete separate layer formation a sharp layer separation what is possible even with very thin individual layers due to a separate white water channel with separate ones Headboxes are still supported.
  • the two layers are each guided on belts which are subjected to suction or blown air will.
  • the object is achieved according to the invention solved in that in a paper machine according to the entry mentioned type at least one of the two formers as a crescent former with a felt belt led over a forming roller and a sieve is formed.
  • the second is also Shaper as a crescent shaper with a over a forming roller guided felt belt and a sieve.
  • a common felt band is preferably shared by both Shaper guided.
  • the two formers are each separate bands are provided for guiding the layers formed, both belts together by a downstream pressing device are passed through to collapse the layers.
  • This version has the advantage that a can achieve particularly sharp delamination.
  • both formers than crescent formers training provided that particularly thin individual layers are produced according to a further development of the invention possible, one of the two formers not as a crescent former but e.g. to train as a twin wire former. This is preferred provided one of the two layers is of greater strength should have.
  • At least a forming roller flexible strips provided to the Forming roller can be pressed.
  • both bands before being guided through the pressing device together via a guided guide roller.
  • FIGS. 1 and 1a A first embodiment of a paper machine according to the invention is shown in FIGS. 1 and 1a and overall with the number Designated 10.
  • the paper machine 10 comprises a first, with the total Number 12 designated headbox, on which by means of a Crescent former trained first former 14 a first Layer of a fibrous web is generated. This is about a forming roller 16 guided a felt belt 22 over which a sieve 20 runs.
  • the first headbox 12 becomes a fibrous suspension in the between the felt belt 22 and the sieve 20th formed inlet gusset 17 shot in and passes through the arrows shown in a tub 18 in which the Liquid is collected.
  • the first one between the felt tape 22 and the screen 20 layer formed on the forming roller 16 reaches a second former 24 on the felt belt 22, the is also designed as a crescent former.
  • the felt tape 22 on which the two are superimposed Layers are now formed over a plurality of Deflection rollers led to a wet press coming from an upper one Press roll 32 and a lower press roll 34 is formed and can be designed as an extended nip press. After passing through through the press 32, 34, the felt tape 22 is over pulleys diverted upwards and finally back to the first former 14 returned. The fibrous web 48 is then through another double felted press with a lower suction press roll 38 and an upper counter roller 40.
  • the fibrous web 48 is then drawn by means of a suction roll 42 removed and transferred to a dryer 44 to be in a subordinate dryer section to be dried, of which only a first drying cylinder 46 is shown.
  • FIGS. 1 and 1a indicate the transfer characterized, since Fig. 1a is the continuation of Fig. 1.
  • FIG. 2 A modification of the paper machine according to FIG. 1 is shown in FIG. 2 shown and designated overall by the number 50. It is a paper machine for the production of tissue papers.
  • the fibrous web after the formation of the first and the second layer on formers 14 and 24 on the felt belt 22 is not led through a press section, but directly by means of a roller 52 to a drying cylinder 54 or Yankee-Dryer with drying hood 56 is passed, of which the Fibrous web 48 is removed on a scraper 58.
  • FIG. 3 Another embodiment of a paper machine according to the invention for the production of cardboard boxes is shown in Fig. 3 and overall designated with the number 60.
  • the two layers are not immediate sequentially formed on two formers, but independently are formed from each other, and that subsequently the two Layers joined or squeezed together in a wet press will.
  • a first felt belt 22 runs over a forming roller 16a first crescent former 14a around which a first headbox 12a a fibrous suspension in a between the Felt belt 22 and a sieve passed over the forming roller 16a 20a formed inlet gusset 17a is shot.
  • the Excess liquid that emerges laterally is in a Catch pan 18a collected.
  • a second crescent former 24a With a second crescent former 24a, a second Felt tape 22a in a corresponding manner a second layer of Fiber web formed, which in turn from a headbox 23a fiber suspension shot into an inlet gusset 27a between the via a forming roller 26a guided felt belt 22a and a circumferential sieve 30a formed is.
  • the escaping liquid is in a tub 28a caught.
  • FIG. 4 Another modification of a paper machine according to the invention is shown in FIG. 4 and overall with the number 70 designated.
  • This variant differs from the ones described above Variants essentially in that one of the two formers is designed as a twin wire former, with the total number 86 is designated.
  • a second former is connected to the twin wire former 86 97, which is supplied from a headbox 99 and at which in the manner described above between one over one Forming roller passed a second belt to felt belt 102 and a sieve 101 Paper layer is generated with the in the twin wire former 86 generated first layer merged and in a first Wet press 81, 83 is then squeezed together.
  • the twin wire former 86 is supplied from a headbox 88 and comprises, in a manner known per se, a top sieve 98 and a Bottom sieve 100, which is guided over a breast roller 90. Of the Material jet emerges from the headbox 88 into the gap Breast roll 90 and top sieve 98.
  • a D-part 92 with pulsating elements adjoins the breast roller 90 Forming strips and further strips or support foils 94, 96 on.
  • the felt band 102 of the crescent former 97 is from below hinged to the top wire 98 of the twin wire former 86 so that the two layers produced are brought into contact with one another.
  • the felt band 102 runs in and out Upper felt 104.
  • Another press is connected to the first wet press 81, 83 which is preferably also designed as a shoe press 82, 84 and just as a felted press with one Upper felt 106 is executed.
  • the paper web 48 After the second shoe press 82, 84, the paper web 48 finally by means of a dryer fabric 108 through a dryer section performed in which they are between the individual drying cylinders 110 is dried in a manner known per se.
  • Such an embodiment with a combination of a first former, which is designed as a twin wire former and a second Formers, who are trained as crescent formers, can be advantageous to produce paper webs in which on a first thicker layer that is created in the twin wire former, one second thinner layer is applied in the crescent former is produced.

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  • Paper (AREA)
EP97121015A 1997-02-06 1997-11-29 Procédé et machine à papier pour la fabrication d'une bande fibreuse multi-couches Expired - Lifetime EP0863254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19704443 1997-02-06
DE19704443A DE19704443A1 (de) 1997-02-06 1997-02-06 Verfahren und Papiermaschine zur Herstellung einer mehrlagigen Faserstoffbahn

Publications (3)

Publication Number Publication Date
EP0863254A2 true EP0863254A2 (fr) 1998-09-09
EP0863254A3 EP0863254A3 (fr) 1999-11-03
EP0863254B1 EP0863254B1 (fr) 2003-08-06

Family

ID=7819449

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121015A Expired - Lifetime EP0863254B1 (fr) 1997-02-06 1997-11-29 Procédé et machine à papier pour la fabrication d'une bande fibreuse multi-couches

Country Status (2)

Country Link
EP (1) EP0863254B1 (fr)
DE (2) DE19704443A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1225273A3 (fr) * 2001-01-15 2003-12-03 Voith Paper Patent GmbH Procédé pour la fabrication d' une bande fibreuse à plusieurs couches
EP1321570A3 (fr) * 2001-12-20 2004-01-21 SCA Hygiene Products AB Bande de papier à couches multiples et procédé pour sa formation
EP1138822A3 (fr) * 2000-03-30 2005-02-09 Voith Paper Patent GmbH Dispositif pour la fabrication d' une bande fibreuse à plusieurs couches
DE102008041953A1 (de) 2008-09-10 2010-03-11 Voith Patent Gmbh Blattbildungsvorrichtung und Verfahren zur Herstellung symmetrischer Blattstrukturen
WO2013139522A1 (fr) 2012-03-22 2013-09-26 Voith Patent Gmbh Dispositif de réception de l'eau résiduelle
US20150330021A1 (en) * 2014-05-15 2015-11-19 Gapcon Gmbh Compact Former Section

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10255471A1 (de) * 2002-11-28 2004-07-22 Voith Paper Patent Gmbh Doppelsiebformer einer Maschine zur Herstellung einer Faserstoffbahn und dazugehöriges Verfahren
DE10318198A1 (de) * 2003-04-22 2004-11-18 Voith Paper Patent Gmbh Maschine zur Herstellung einer mehrlagigen Faserstoffbahn
FI127630B (en) * 2014-12-17 2018-10-31 Valmet Technologies Inc Forming section of a fiber web machine and a secondary forming unit for a multiply forming section of a fiber web machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112070A1 (de) * 1981-03-27 1982-10-14 J.M. Voith Gmbh, 7920 Heidenheim Papiermaschine zum herstellen sanitaerer papiere
JPH07138895A (ja) * 1993-07-15 1995-05-30 Mitsubishi Heavy Ind Ltd 多層紙形成装置
CA2119432A1 (fr) * 1993-11-12 1995-05-13 Greg A. Wendt Methode pour fabriquer un tissu
DE4420801C2 (de) * 1994-06-16 1997-01-30 Voith Gmbh J M Verfahren zum Betreiben einer Doppelsiebzone einer Papiermaschine zur Herstellung von Faserstoffbahnen sowie Siebzone hierzu

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1138822A3 (fr) * 2000-03-30 2005-02-09 Voith Paper Patent GmbH Dispositif pour la fabrication d' une bande fibreuse à plusieurs couches
EP1225273A3 (fr) * 2001-01-15 2003-12-03 Voith Paper Patent GmbH Procédé pour la fabrication d' une bande fibreuse à plusieurs couches
EP1321570A3 (fr) * 2001-12-20 2004-01-21 SCA Hygiene Products AB Bande de papier à couches multiples et procédé pour sa formation
DE102008041953A1 (de) 2008-09-10 2010-03-11 Voith Patent Gmbh Blattbildungsvorrichtung und Verfahren zur Herstellung symmetrischer Blattstrukturen
WO2013139522A1 (fr) 2012-03-22 2013-09-26 Voith Patent Gmbh Dispositif de réception de l'eau résiduelle
DE102012204593A1 (de) 2012-03-22 2013-09-26 Voith Patent Gmbh Siebwasserauffanganlage
DE202012013055U1 (de) 2012-03-22 2014-09-05 Voith Patent Gmbh Siebwasserauffanganlage
US20150330021A1 (en) * 2014-05-15 2015-11-19 Gapcon Gmbh Compact Former Section
US9822485B2 (en) * 2014-05-15 2017-11-21 Gapcon S.R.L. Compact former section

Also Published As

Publication number Publication date
DE59710541D1 (de) 2003-09-11
DE19704443A1 (de) 1998-08-13
EP0863254A3 (fr) 1999-11-03
EP0863254B1 (fr) 2003-08-06

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