EP1811083B1 - Mattsatinage - Google Patents

Mattsatinage Download PDF

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Publication number
EP1811083B1
EP1811083B1 EP06124197A EP06124197A EP1811083B1 EP 1811083 B1 EP1811083 B1 EP 1811083B1 EP 06124197 A EP06124197 A EP 06124197A EP 06124197 A EP06124197 A EP 06124197A EP 1811083 B1 EP1811083 B1 EP 1811083B1
Authority
EP
European Patent Office
Prior art keywords
heated
nip
calendering
fibrous web
calendering nip
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.)
Expired - Fee Related
Application number
EP06124197A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1811083A1 (de
Inventor
Jörg Dr. Rheims
Ulrich Rothfuss
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38080891&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1811083(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Publication of EP1811083A1 publication Critical patent/EP1811083A1/de
Application granted granted Critical
Publication of EP1811083B1 publication Critical patent/EP1811083B1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0233—Soft rolls
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/02—Rolls; Their bearings
    • D21G1/0253—Heating or cooling the rolls; Regulating the temperature

Definitions

  • the invention relates to a method and apparatus for matting a paper, cardboard or other fibrous web in a machine for producing and / or finishing the same at the at least one side of the fibrous web provided by a coating unit with a coating and the fibrous web then by at least a heated nip is performed.
  • Coated fibrous webs are usually smoothed with soft calenders.
  • the problem is to produce a suitable for printability smoothness, without making the surface to shiny.
  • the EP-A-1571257 describes a method and an apparatus in which a paper web is provided with a line and satined in a wide nip, that is provided with gloss.
  • the WO 02/29159 refers to a method and a calender in which satined in a long nip under certain physical parameters.
  • the jacket of the unheated roll is at least partially made of metal.
  • the curl avoidance is the object of the invention in the EP-A-1491680 ,
  • countercurl generating devices are used in the immediate vicinity of a wide-nip calender.
  • the object of the invention is to improve the smoothness of matte satin.
  • the object with respect to the method is achieved in that the smoothing gap is extended and formed by a smoothing roll and a shoe press roll, the line force in the heated nip is above 300N / mm, a pressing surface of the heated nip heated to a temperature between 90 and 130 ° C.
  • the roll shell of the shoe press roll has a hardness of less than 95 shore (A) and pulp webs having a Tappi 75 gloss value of less than 35% are produced.
  • the calendering nip is extended and is formed by a smoothing roll and a shoe press roll, the line force in the heated nip is above 300 N / mm, a pressing surface of the heated nip at a temperature between 90 and 130 ° C. is heated, the surface of the roll shell of the shoe press roll has a hardness of less than 95 Shore (A) and the nip is adapted to produce fibrous webs with a Tappi 75 gloss value of less than 35%.
  • the temperature in the nip is much higher than is otherwise found in the matte finish. Surprisingly, it has been found that the higher temperature in conjunction with the longer residence time has a positive effect on the smoothness, but not on the same extent on the gloss.
  • the length of the heated nip should be between 40 and 90 mm.
  • the heated pressing surface should be formed for simplicity by a heated smoothing roll.
  • the pressing surface opposite the heated pressing surface should be designed as a roll with an elastic cover or as a shoe press roll.
  • the flexible roll shell of the shoe press roll should have a hardness of less than 95 Shore (A) at least on the surface in order to protect the fibrous web.
  • both sides of the fibrous web should be provided with a coating by the coater.
  • the heated pressing surfaces of the heated nip should be placed on different sides of the fibrous web.
  • the fibrous web runs through a heated, extended nip and an elastic smoothing nip, wherein the elastic nip is formed by two pressing surfaces, at least one of which has an elastic cover.
  • the elastic nip should be formed by two press rolls, at least one of which has an elastic cover.
  • the elastic cover also results in an extension of the calendering nip.
  • two press rolls offer the advantage that in particular the fibrous web thickness can be profiled in the elastic nip.
  • the elastic smoothing nip is arranged before or after the heated calendering nip.
  • Tappi 75 is a method for measuring the reflection gloss of the paper at 75 ° according to the test method Tappi T480.
  • the fibrous web 1 is painted on both sides during the passage of a coating unit 2 before satining. This forms the basis for a substantial improvement in surface properties.
  • the fibrous web 1 is passed through a first, heated and extended nip.
  • This smoothing gap is formed by a heated, cylindrical and below the fibrous web 1 arranged smoothing roll 4 and an upper shoe press roll 3.
  • the shoe press roll 3 has a flexible roll shell 7 which is pressed by a pressing element 8 with concave pressing surface for smoothing roll 4.
  • the roll shell 7 is sufficiently soft with a hardness of less than 95 Shore (A) to not affect the surface of the fibrous web 1.
  • the concave pressing surface extends the smoothing gap to a length between 40 and 90 mm. Because of the thus resulting, longer residence time of the fibrous web 1 in the calendering nip, the line force can be increased to values above 300 N / mm without the risk of excessive volume reduction.
  • the temperature of the roll shell of the heated smoothing roll 4 is between 90 and 130 ° C and, in conjunction with the long residence time for a significant improvement in the smoothness.
  • a second heated and extended smoothing nip In order to further improve the smoothing of the fibrous web 1, follows in the embodiment according to FIG. 1 then a second heated and extended smoothing nip.
  • the heated smoothing rolls 4 are arranged on different sides of the fibrous web 1.
  • the heated nip in the web running direction 9 is followed by an elastic nip.
  • This elastic smoothing nip is formed by two press rollers 5,6 with an elastic roll cover. Due to the elasticity of the roll covers, here too an extended smoothing gap arises.
  • This elastic smoothing gap is associated with a smoothing gap with shoe press roll with less effort.

Landscapes

  • Paper (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP06124197A 2006-01-07 2006-11-16 Mattsatinage Expired - Fee Related EP1811083B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006001021A DE102006001021A1 (de) 2006-01-07 2006-01-07 Mattsatinage

Publications (2)

Publication Number Publication Date
EP1811083A1 EP1811083A1 (de) 2007-07-25
EP1811083B1 true EP1811083B1 (de) 2008-11-19

Family

ID=38080891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124197A Expired - Fee Related EP1811083B1 (de) 2006-01-07 2006-11-16 Mattsatinage

Country Status (4)

Country Link
EP (1) EP1811083B1 (ja)
JP (1) JP4906500B2 (ja)
AT (1) ATE414818T1 (ja)
DE (2) DE102006001021A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009029482A1 (de) * 2009-09-15 2011-03-24 Voith Patent Gmbh Vorrichtung zur Behandlung einer Faserstoffbahn

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI991108A (fi) * 1999-05-14 2000-11-15 Valmet Corp Menetelmä ja sovitelma kalanteroidun paperin tai kartongin valmistamis eksi
FI113288B (fi) * 2000-02-16 2004-03-31 Metso Paper Inc Menetelmä ja laite paperin kalanteroimiseksi
FI115730B (fi) * 2000-05-03 2005-06-30 Metso Paper Inc Hihnakalanteri ja menetelmä materiaalirainan kalanteroimiseksi hihnakalanterissa
JP2004510897A (ja) * 2000-10-02 2004-04-08 メッツォ　ペーパー　インコーポレイテッド ロング・ニップ・カレンダーを含む材料ウェブカレンダー掛け装置及び方法
DE10157687B4 (de) * 2001-11-24 2005-11-17 Voith Paper Patent Gmbh Kalander und Verfahren zum Glätten einer Papier- oder Kartonbahn
DE10316852B4 (de) * 2003-04-11 2006-08-03 Voith Paper Patent Gmbh Anordnung zum Behandeln einer Papier- oder Kartonbahn
DE10327673B4 (de) * 2003-06-20 2005-04-14 Voith Paper Patent Gmbh Verfahren zum Glätten einer Papier-oder Kartonbahn und Breitnip-Kalander
JP2005089950A (ja) * 2003-08-12 2005-04-07 Mitsubishi Heavy Ind Ltd カレンダシステム，そのカレンダシステムにより製造された紙及びカレンダ処理方法
JP4228903B2 (ja) * 2003-12-12 2009-02-25 王子製紙株式会社 印刷用塗被紙の製造方法
DE102004010894A1 (de) * 2004-03-06 2005-09-22 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Behandeln einer Bahn aus Papier oder Karton
JP2006132030A (ja) * 2004-11-05 2006-05-25 Nippon Paper Industries Co Ltd 印刷用塗工紙

Also Published As

Publication number Publication date
EP1811083A1 (de) 2007-07-25
DE502006002116D1 (de) 2009-01-02
JP2007182666A (ja) 2007-07-19
DE102006001021A1 (de) 2007-07-12
ATE414818T1 (de) 2008-12-15
JP4906500B2 (ja) 2012-03-28

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