EP1541759A1 - Procédé de traitement d'une bande de papier - Google Patents

Procédé de traitement d'une bande de papier Download PDF

Info

Publication number
EP1541759A1
EP1541759A1 EP04105858A EP04105858A EP1541759A1 EP 1541759 A1 EP1541759 A1 EP 1541759A1 EP 04105858 A EP04105858 A EP 04105858A EP 04105858 A EP04105858 A EP 04105858A EP 1541759 A1 EP1541759 A1 EP 1541759A1
Authority
EP
European Patent Office
Prior art keywords
paper web
moisture
calender
paper
range
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
EP04105858A
Other languages
German (de)
English (en)
Other versions
EP1541759B1 (fr
Inventor
Ingolf Cedra
Holger Humberg
Joachim Hinz
Rüdiger KURTZ
Jörg Rheims
Udo Gabbusch
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 Paper 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34485341&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1541759(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1541759A1 publication Critical patent/EP1541759A1/fr
Application granted granted Critical
Publication of EP1541759B1 publication Critical patent/EP1541759B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0073—Accessories for calenders
    • D21G1/0093—Web conditioning devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G7/00—Damping devices

Definitions

  • the invention relates to a method for treating a Paper web in which the paper web is overdried, rewetted and passed through a calender.
  • the invention relates to the treatment of SC paper in the off-line process.
  • Overdrying means the moisture content of the paper web to a value which is below a value that is for the calendering of the paper web in a calender is required is.
  • the paper web then has a moisture vo for example, 2%.
  • the overdried paper web is rewetted so that it receives the moisture that is required for the calendering.
  • the rewetted Paper web can then be either satin or online wound up and later unwound and satined off-line become. The remoistening can still be done in the paper machine take place after the dryer section and if available, before winding.
  • the invention is based on the object, the result to improve the treatment of the paper web in the calender.
  • This object is achieved in a method of the aforementioned Sorted by solving the paper web over-drying in an over-dried state and stored for a predetermined rest period.
  • the paper web is dried prior to winding to a maximum humidity of 4%. In many cases you will lower the humidity even further. Such overdrying has proven itself to the Moisture nests dry out so far that they do not disturb more.
  • the paper web is rewetted before first nip of the calender to a moisture of at least 7%, in particular in the range of 8 to 12%.
  • an exposure time in the range of 0.1 to 1 s, in particular in the range of 0.3 to 0.6 s, between rewetting and going through the first nip in front.
  • the overdried paper web will be so only relatively shortly before entering the first nip of the calender moistened. This has the consequence that the Moisture when passing through the first nip yet not very far penetrated in the middle of the paper web is. This results in a moisture gradient.
  • the Paper web is at their top or their tops moister than in their midst. Accordingly behaves the center of the paper web is largely elastic, while the surface layers are plastically leveled can be. Accordingly, the thickness loss when passing through the calender lower.
  • the drive gas for the Atomizer nozzles used steam.
  • the steam mediates the liquid used for moistening not just the desired kinetic energy that the Moisture for spraying and transport to the Surface of the paper web needed.
  • the Moisture also heats up, giving you better penetration moisture in the surface of the paper web can reach.
  • it gets to the condensing steam adds moisture to the Paper web.
  • the paper web becomes thermal energy fed, what the Satinageresultat on the basis of Improved "Temperature / Moisture Gradient Process".
  • one moistens top and bottom the paper web Preferably, one moistens top and bottom the paper web.
  • Moisture can be a moisture increase yet reach faster.
  • the paper web in the first level to the level of equilibrium moisture moisturizes their environment.
  • a moisture is on the order of 5 to 6%.
  • one uses a calender with several Roll stacking and takes a rewet also between two roll stacks before. Even with this one can be achieve sufficient rewet.
  • a paper web 1 is produced in a paper machine 2 and in the dryer section 3 of the paper machine 2 dried.
  • the paper web 1 leaves the dryer section at an outlet 4 with a maximum humidity of 4%, preferably even with even lower humidity from only 2 to 3%. So it is overdried.
  • Such a thing low humidity is not enough for the paper web 2 in a calender 5, which is separate from the paper machine 2, so off-line, is set to evening.
  • the thus overdried paper web 1 is in a reel 6 on a tambour shown only schematically 7 wound up.
  • On the Tambour 7 is located So the over-dried paper web 1 with the described low humidity. So it's practically impossible that the paper web 1 during the time, in she is wound on the spool 7, moisture to the environment.
  • overdrying has the effect of that also moisture nests, which are usually in the Paper web form and a size of a few square centimeters have to be dried out. Even if they do not completely disappear as a result, it results but a very substantial homogenization of moisture over the surface of the paper web 1. This homogenization is further improved by the Paper web 1 in the very dry state on the spool 7 is wound up. A longer residence time The tambour is usually not required.
  • the equalization i. the moisture transfer from one layer of the paper web 1 to an adjacent one Position on the spool 7 already begins during winding, once paper web layers abut each other. The moisture balance may continue until these layers lifted off again when unwinding become. Accordingly, the time is usually enough which are available during winding and unwinding plus the time it takes to complete the drumming 7 of the illustrated winding 6 to a settlement 8 to transport, out to the desired Effect moisture balance.
  • the rest period in which the paper web 1 on the drum 7 wound up can be longer, without that this would have negative effects. It is preferably in the range of 10 to 30 minutes.
  • the paper web 1 of the spool 7 unwound and in a humidifier 10 rewet, i. you increase the humidity of the paper web 1 to at least 7%, preferably 8 to 12%. Such moisture is favorable to the paper web. 1 to calender in the calender 5.
  • the moistening device two nozzle dampers 11, 12 on, on both sides the paper web 1 are arranged.
  • the two nozzle dampers 11, 12 are at a distance before the first Arranged nip 13 of the calender 5, which is sized that the paper web 1 is about 0.1 to 1 s, preferably 0.3 to 0.6 s needed to reach the distance between the humidifier 10 and the first nip 13 of the calender 5 back.
  • the nozzle dampers 11, 12 work with atomizer nozzles, where the liquid on the paper web 1 is applied with the help of a pressurized Gas is atomized.
  • a liquid it is preferable Water used.
  • a "propellant gas” you can Use steam. Steam has the advantage that he not only water in the jet humidifiers 11, 12 can atomise with a relatively high pressure. simultaneously the steam carries a certain amount of heat into it resulting liquid droplets, so that the Liquid can penetrate better in the paper web 1.
  • additional Moisture is applied to the surfaces of the paper web 1.
  • the paper web 1 is heated, so that In addition to a temperature gradient and a humidity gradient results.
  • air can also be used as drive gas use.
  • Dashed lines show two additional nozzle dampers 15, 16 at the exit 4 of the dryer section 3.
  • this nozzle moistener 15, 16 can be a two-stage Re-humidify.
  • the paper web 1 is first on the Humidity of the respective ambient condition raised. These are usually 5 to 6%. Such a moisture is not enough to be satisfactory Calender result in the calender 5 to lead.
  • the second moistening device 10 can then with a lower Moisturizing job and you can still make sure that the paper web 1 upon reaching the first Calender 5 nips 13 which are necessary for the calendering Has moisture.
  • Fig. 2 shows an alternative embodiment in which the calender 5 consists of two roller stacks 5a, 5b. Same parts are given the same reference numerals as designated in Fig. 1. In addition, there are between the two Roller stacks 5a, 5b still further dampers 17, 18th arranged, which are used for rewetting.
  • the procedure described is particularly in Connection with at least one single-row dryer group in the dryer section 3 and possibly high vacuum boxes interesting in the dryer section 3. It continues low, a dilution hydrogen headbox in the paper machine 2 to use, optionally one Gapformer and at least one shoe press with at least a steam box.
  • a dilution hydrogen headbox in the paper machine 2 to use optionally one Gapformer and at least one shoe press with at least a steam box.
  • the mentioned elements which can be used individually or in combination can, are the cross sections, in particular the moisture profile, but also the thickness and surface mass profile at a higher level of quality. This diminishes Problems with the winding up of overdried Paper web 1 on the drum 7 could arise.

Landscapes

  • Paper (AREA)
EP04105858A 2003-12-12 2004-11-18 Procédé de traitement d'une bande de papier Revoked EP1541759B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10358185 2003-12-12
DE2003158185 DE10358185B4 (de) 2003-12-12 2003-12-12 Verfahren zum Behandeln einer Papierbahn

Publications (2)

Publication Number Publication Date
EP1541759A1 true EP1541759A1 (fr) 2005-06-15
EP1541759B1 EP1541759B1 (fr) 2009-01-21

Family

ID=34485341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04105858A Revoked EP1541759B1 (fr) 2003-12-12 2004-11-18 Procédé de traitement d'une bande de papier

Country Status (2)

Country Link
EP (1) EP1541759B1 (fr)
DE (2) DE10358185B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1745176B1 (fr) * 2004-03-12 2012-10-31 Metso Paper, Inc. Procede et appareil de production de papier calendre
EP2295634A3 (fr) * 2009-08-07 2013-09-04 Giorgio Trani Procédé de formation de bande de papier continue extensible dans le sens longitudinal et transversal
EP2765237A1 (fr) * 2013-02-06 2014-08-13 Valmet Technologies, Inc. Procédé de production de bandes de fibres et ligne de fabrication de bandes de fibres

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296044A2 (fr) * 1987-06-15 1988-12-21 Measurex Corporation Contrôle du brillant dans la direction transversale
EP0345670A2 (fr) * 1988-06-10 1989-12-13 V.I.B. Apparatebau GmbH Tête de pulvérisation pour humidificateur à buses et procédé d'humidification
WO2001023666A2 (fr) * 1999-09-29 2001-04-05 Metso Paper, Inc. Procede mettant en oeuvre une calandre a plusieurs rouleaux, de meme qu'une telle calandre
US6401355B1 (en) * 1998-07-10 2002-06-11 Metso Paper, Inc. Method and apparatus for manufacturing calendered paper
EP1335066A1 (fr) * 2002-02-08 2003-08-13 Voith Paper Patent GmbH Procédé et appareil pour la fabrication et le traitement d'un matériau en bande

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0296044A2 (fr) * 1987-06-15 1988-12-21 Measurex Corporation Contrôle du brillant dans la direction transversale
EP0345670A2 (fr) * 1988-06-10 1989-12-13 V.I.B. Apparatebau GmbH Tête de pulvérisation pour humidificateur à buses et procédé d'humidification
US6401355B1 (en) * 1998-07-10 2002-06-11 Metso Paper, Inc. Method and apparatus for manufacturing calendered paper
WO2001023666A2 (fr) * 1999-09-29 2001-04-05 Metso Paper, Inc. Procede mettant en oeuvre une calandre a plusieurs rouleaux, de meme qu'une telle calandre
EP1335066A1 (fr) * 2002-02-08 2003-08-13 Voith Paper Patent GmbH Procédé et appareil pour la fabrication et le traitement d'un matériau en bande

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1745176B1 (fr) * 2004-03-12 2012-10-31 Metso Paper, Inc. Procede et appareil de production de papier calendre
EP2295634A3 (fr) * 2009-08-07 2013-09-04 Giorgio Trani Procédé de formation de bande de papier continue extensible dans le sens longitudinal et transversal
EP2765237A1 (fr) * 2013-02-06 2014-08-13 Valmet Technologies, Inc. Procédé de production de bandes de fibres et ligne de fabrication de bandes de fibres
EP2765237B1 (fr) 2013-02-06 2016-11-23 Valmet Technologies, Inc. Procédé de production d'une bande de fibres et ligne de fabrication d'une bande de fibres

Also Published As

Publication number Publication date
DE502004008906D1 (de) 2009-03-12
DE10358185A1 (de) 2005-07-14
DE10358185B4 (de) 2006-11-02
EP1541759B1 (fr) 2009-01-21

Similar Documents

Publication Publication Date Title
DE19826899B4 (de) Verfahren und Vorrichtung zur Online-Kalandrierung von SC-A-Papier
EP0979897B1 (fr) Procédé et dispositif pour la fabrication de papier online
DE69834675T2 (de) Vorrichtung zum Aufbringen von Luft auf eine Bahn
DE10084321B3 (de) Verfahren zum Steuern der Feuchtigkeit einer Papier- oder Kartonbahn beim Beschichten und Kalandern
DE10358185B4 (de) Verfahren zum Behandeln einer Papierbahn
WO2022248116A1 (fr) Procédé et dispositif
EP0957202A2 (fr) Procédé et dispositif pour la fabrication de papier SC-A online
EP1335066B1 (fr) Procédé et appareil pour la fabrication et le traitement d'une bande de papier
EP1541758B1 (fr) Procédé de traitement d'une bande de papier
DE10052187B4 (de) Verfahren zum Glätten einer Materialbahn sowie Kalander zur Durchführung des Verfahrens
DE102006011853A1 (de) Verfahren und Vorrichtung zum Befeuchten einer Faserstoffbahn
EP1357225B1 (fr) Procédé pour traiter un matériau en bande et calandre
EP1614802B1 (fr) Procédé et appareil pour le traitement d' une bande de papier ou carton
DE102006028420A1 (de) Rollneigung
EP1541757B1 (fr) Procédé de satinage d'une bande de papier ou carton couchée et calandre
DE102007027269A1 (de) Verfahren zur Regelung der Rollneigung der Faserstoffbahn in einer Papier- oder Kartonmaschine
EP1746203B1 (fr) Section de séchage
WO2004011722A1 (fr) Train de sechage
AT506010B1 (de) Verfahren und anordnung zur einflussnahme auf die eigenschaften einer faserbahn
DE10358189B4 (de) Verfahren und Vorrichtung zum Behandeln einer Bahn aus Papier oder Karton
DE102006051537A1 (de) Vorrichtung zum Bearbeiten einer Bahn aus Papier oder Karton
DE10212818A1 (de) Auftragsvorrichtung
DE102005059734A1 (de) Feuchtequerprofilsteuerung
DE102004020069A1 (de) Verfahren zum Satinieren einer Papierbahn
AT505349A2 (de) Verfahren und vorrichtung zur herstellung einer neuen papierqualität

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL HR LT LV MK YU

17P Request for examination filed

Effective date: 20051215

AKX Designation fees paid

Designated state(s): DE FI SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH PATENT GMBH

17Q First examination report despatched

Effective date: 20070612

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FI SE

REF Corresponds to:

Ref document number: 502004008906

Country of ref document: DE

Date of ref document: 20090312

Kind code of ref document: P

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: METSO PAPER, INC.

Effective date: 20091020

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20111128

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20121113

Year of fee payment: 9

Ref country code: DE

Payment date: 20121121

Year of fee payment: 9

APBM Appeal reference recorded

Free format text: ORIGINAL CODE: EPIDOSNREFNO

APBP Date of receipt of notice of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA2O

APAH Appeal reference modified

Free format text: ORIGINAL CODE: EPIDOSCREFNO

APBQ Date of receipt of statement of grounds of appeal recorded

Free format text: ORIGINAL CODE: EPIDOSNNOA3O

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121119

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004008906

Country of ref document: DE

Effective date: 20140603

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140603

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131118

APBU Appeal procedure closed

Free format text: ORIGINAL CODE: EPIDOSNNOA9O

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

REG Reference to a national code

Ref country code: DE

Ref legal event code: R064

Ref document number: 502004008906

Country of ref document: DE

Ref country code: DE

Ref legal event code: R103

Ref document number: 502004008906

Country of ref document: DE

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20160128

REG Reference to a national code

Ref country code: SE

Ref legal event code: ECNC