EP1811083A1 - Calendering - Google Patents
Calendering Download PDFInfo
- Publication number
- EP1811083A1 EP1811083A1 EP06124197A EP06124197A EP1811083A1 EP 1811083 A1 EP1811083 A1 EP 1811083A1 EP 06124197 A EP06124197 A EP 06124197A EP 06124197 A EP06124197 A EP 06124197A EP 1811083 A1 EP1811083 A1 EP 1811083A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heated
- nip
- fibrous web
- elastic
- smoothing
- 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
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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 object of the invention is therefore to improve the smoothness of Mattatinatin.
- this object is achieved in that the calendering nip is extended, the line force in the heated nip is above 300 N / mm and a pressing surface of the heated nip is heated to a temperature between 90 and 130 ° C.
- the temperature in the nip is much higher than is otherwise found in the matte finish. Surprisingly, it turned out that the Higher temperature in connection 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 an excessive reduction in volume.
- 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 gap follows thereupon.
- the heated smoothing rolls 4 are arranged on different sides of the fibrous web 1.
- the heated smoothing gap in the web running direction 9 is followed by an elastic calendering 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.
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- Paper (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zum Mattsatinieren einer Papier-, Karton- oder einer anderen Faserstoffbahn in einer Maschine zur Herstellung und/oder Veredlung derselben bei dem zumindest eine Seite der Faserstoffbahn von einem Streichaggregat mit einer Beschichtung versehen und die Faserstoffbahn anschließend durch wenigstens einen beheizten Glättspalt geführt wird.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.
Gestrichene Faserstoffbahnen werden üblicherweise mit Softkalandern geglättet. Dabei besteht das Problem darin, eine für die Bedruckbarkeit geeignete Glätte herzustellen, ohne die Oberfläche zu glänzend zu machen.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.
Dies kann bisher noch nicht in ausreichendem Maße erreicht werden.This can not yet be achieved to a sufficient extent.
Die Aufgabe der Erfindung ist es daher, die Glätte beim Mattsatinieren zu verbessern.The object of the invention is therefore to improve the smoothness of Mattatinatin.
Erfindungsgemäß wurde die Aufgabe dadurch gelöst, dass der Glättspalt verlängert ist, die Linienkraft im beheizten Glättspalt über 300N/mm liegt und eine Pressfläche des beheizten Glättspaltes auf eine Temperatur zwischen 90 und 130°C erwärmt wird.According to the invention, this object is achieved in that the calendering nip is extended, the line force in the heated nip is above 300 N / mm and a pressing surface of the heated nip is heated to a temperature between 90 and 130 ° C.
Die Beanspruchung der Faserstoffbahn infolge der für das Mattsatinieren unüblich hohen Linienkraft relativiert sich wegen der verlängerten Ausführung des Glättspaltes.The stress on the fibrous web due to the unusually high line force for matting satinizes itself due to the extended design of the smoothing nip.
Damit ist auch keine zu starke Verminderung des Volumens während der Mattsatinage zu befürchten. Jedoch verbessert sich durch die längere Verweilzeit der Faserstoffbahn im Glättspalt die Glätte erheblich.This is not to fear too much reduction of the volume during the matte finish. However, the smoothness improves significantly due to the longer residence time of the fibrous web in the nip.
Auch die Temperatur im Glättspalt ist wesentlich höher, als dies bei der Mattsatinage ansonsten anzutreffen ist. Überraschenderweise hat sich herausgestellt, dass die höhere Temperatur in Verbindung mit der längeren Verweilzeit sich positiv auf die Glätte, aber nicht im selben Umfang auf den Glanz auswirkt.Also, the temperature in the nip is much higher than is otherwise found in the matte finish. Surprisingly, it turned out that the Higher temperature in connection with the longer residence time has a positive effect on the smoothness, but not on the same extent on the gloss.
Um eine ausreichende Verweilzeit insbesondere bei hohen Maschinengeschwindigkeiten gewährleisten zu können, sollte die Länge des beheizten Glättspaltes zwischen 40 und 90 mm liegen.In order to ensure a sufficient residence time, especially at high machine speeds, the length of the heated nip should be between 40 and 90 mm.
Die beheizte Pressfläche sollte der Einfachheit von einer beheizten Glättwalze gebildet werden.The heated pressing surface should be formed for simplicity by a heated smoothing roll.
Zur Gestaltung eines verlängerten Glättspaltes sollte die, der beheizten Pressfläche gegenüberliegende Pressfläche als Walze mit einem elastischen Bezug oder aber als Schuhpresswalze ausgebildet sein.To design an elongated smoothing nip, the pressing surface opposite the heated pressing surface should be designed as a roll with an elastic cover or as a shoe press roll.
Dabei sollte der flexible Walzenmantel der Schuhpresswalze zur Schonung der Faserstoffbahn zumindest an der Oberfläche eine Härte von weniger als 95 Shore (A) aufweisen.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.
Um die Zweiseitigkeit der Faserstoffbahn zu minimieren, sollten beide Seiten der Faserstoffbahn vom Streichaggregat mit einer Beschichtung versehen werden.To minimize the two-sidedness of the fibrous web, both sides of the fibrous web should be provided with a coating by the coater.
Zur Vervollkommnung der Mattsatinage ist es außerdem zu empfehlen, die Faserstoffbahn durch wenigstens zwei Glättspalte zu führen.To perfect the matte coating, it is also recommended to guide the fibrous web through at least two smoothing nips.
Falls dies zwei beheizte und verlängerte Glättspalte sind, so sollten die beheizten Pressflächen der beheizten Glättspalte auf verschiedenen Seiten der Faserstoffbahn angeordnet werden.If these are two heated and extended smoothing nips, the heated pressing surfaces of the heated nip should be placed on different sides of the fibrous web.
Nur so kann sich die erhöhte Temperatur der entsprechenden Pressfläche im Ergebnis auf beide Seiten der Faserstoffbahn im gleichen Umfang auswirken.Only then can the increased temperature of the corresponding pressing surface, as a result, affect both sides of the fibrous web to the same extent.
Es kann jedoch auch von Vorteil sein, wenn die Faserstoffbahn durch einen beheizten, verlängerten Glättspalt und einen elastischen Glättspalt läuft, wobei der elastische Glättspalt von zwei Pressflächen gebildet wird, von denen wenigstens eine einen elastischen Bezug besitzt.However, it may also be advantageous if 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.
Zur Vereinfachung der Konstruktion sollte der elastische Glättspalt von zwei Presswalzen gebildet werden, von denen wenigstens eine einen elastischen Bezug besitzt. Durch den elastischen Bezug ergibt sich ebenfalls eine Verlängerung des Glättspaltes.For ease of construction, 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.
Zwei Presswalzen bieten zudem den Vorteil, dass im elastischen Glättspalt vor allem die Faserstoffbahndicke profiliert werden kann.In addition, two press rolls offer the advantage that in particular the fibrous web thickness can be profiled in the elastic nip.
Je nach Art der Faserstoffbahn und den Anforderungen an diese kann es vorteilhaft sein, wenn der elastische Glättspalt vor oder nach dem beheizten Glättspalt angeordnet ist.Depending on the type of fibrous web and the requirements of these, it may be advantageous if the elastic smoothing nip is arranged before or after the heated calendering nip.
Als matt betrachten wir hier Faserstoffbahnen, insbesondere Papierbahnen mit einem Tappi 75 Glanzwert von unter 35%. Dabei ist Tappi 75 eine Methode zur Messung des Reflektionsglanzes des Papiers bei 75° gemäß der Testmethode Tappi T480.Here we consider as pulp fibrous webs, in particular paper webs with a Tappi 75 gloss value of less than 35%. Tappi 75 is a method for measuring the reflection gloss of the paper at 75 ° according to the test method Tappi T480.
Nachfolgend soll die Erfindung an zwei Ausführungsbeispielen näher erläutert werden. In der beigefügten Zeichnung zeigt:
- Figur 1:
- eine Vorrichtung mit zwei verlängerten, beheizten Glättspalten und
- Figur 2:
- mit nur einem verlängerten und beheizten Glättspalt zur Herstellung einer matten Faserstoffbahn 1, insbesondere Papierbahn.
- FIG. 1:
- a device with two extended heated nips and
- FIG. 2:
- with only one extended and heated nip for producing a matt fibrous web 1, in particular paper web.
In beiden Fällen wird die Faserstoffbahn 1 vor dem Satinieren beidseitig während des Durchlaufens eines Streichaggregates 2 gestrichen. Dies bildet die Grundlage für eine wesentliche Verbesserung der Oberflächeneigenschaften.In both cases, the fibrous web 1 is painted on both sides during the passage of a
Anschließend wird die Faserstoffbahn 1 durch einen ersten, beheizten und verlängerten Glättspalt geführt. Dieser Glättspalt wird von einer beheizten, zylindrischen und unterhalb der Faserstoffbahn 1 angeordneten Glättwalze 4 und einer oberen Schuhpresswalze 3 gebildet.Subsequently, 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
Die Schuhpresswalze 3 besitzt einen flexiblen Walzenmantel 7 der von einem Anpresselement 8 mit konkaver Pressfläche zur Glättwalze 4 gedrückt wird. Der Walzenmantel 7 ist mit einer Härte von weniger als 95 Shore (A) ausreichend weich um die Oberfläche der Faserstoffbahn 1 nicht zu beeinträchtigen.The
Über die konkave Pressfläche wird der Glättspalt auf eine Länge zwischen 40 und 90 mm verlängert. Wegen der sich hierdurch ergebenden, längeren Verweilzeit der Faserstoffbahn 1 im Glättspalt kann die Linienkraft ohne die Gefahr einer zu starken Volumenverminderung auf Werte oberhalb von 300 N/mm erhöht werden.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 an excessive reduction in volume.
Die Temperatur des Walzenmantels der beheizten Glättwalze 4 liegt zwischen 90 und 130 °C und sorgt in Verbindung mit der langen Verweilzeit für eine wesentliche Verbesserung der Glätte.The temperature of the roll shell of the heated
Um die Glättung der Faserstoffbahn 1 noch weiter zu verbessern, folgt bei der Ausführung gemäß Figur 1 hierauf ein zweiter beheizter und verlängerter Glättspalt. Im Interesse einer minimierten Zweiseitigkeit der Faserstoffbahn 1 sind die beheizten Glättwalzen 4 auf unterschiedlichen Seiten der Faserstoffbahn 1 angeordnet.In order to further improve the smoothing of the fibrous web 1, in the embodiment according to FIG. 1, a second heated and extended smoothing gap follows thereupon. In the interest of a minimized two-sidedness of the fibrous web 1, the heated
Bei der in Figur 2 gezeigten Ausführung folgt dem beheizten Glättspalt in Bahnlaufrichtung 9 ein elastischer Glättspalt.In the embodiment shown in FIG. 2, the heated smoothing gap in the web running direction 9 is followed by an elastic calendering nip.
Dieser elastische Glättspalt wird von zwei Presswalzen 5,6 mit einem elastischen Walzenbezug gebildet. Durch die Elastizität der Walzenbezüge stellt sich auch hier ein verlängerter Glättspalt ein.This elastic smoothing nip is formed by two
Dieser elastische Glättspalt ist gegenüber einem Glättspalt mit Schuhpresswalze mit geringerem Aufwand verbunden.This elastic smoothing gap is associated with a smoothing gap with shoe press roll with less effort.
Die sich hierdurch ergebende Verbesserung der Glätte ist für viele Anwendungen bereits ausreichend. Außerdem vermindert sich durch die gleichseitige Behandlung eine eventuell vorhandene Zweiseitigkeit der Faserstoffbahn 1.The resulting improvement in smoothness is already sufficient for many applications. In addition, the equilateral treatment reduces any two-sidedness of the fibrous web 1.
In beiden Fällen kann es vorteilhaft sein, die Faserstoffbahn 1 insbesondere vor dem beheizten und verlängerten Glättspalt zu befeuchten, um den Feuchteverlust beim Glättprozess zumindest teilweise wieder auszugleichen.In both cases, it may be advantageous to moisten the fibrous web 1, in particular before the heated and extended nip, in order to at least partially compensate for the loss of moisture in the smoothing process.
Claims (17)
dadurch gekennzeichnet, dass
der Glättspalt verlängert ist, die Linienkraft im beheizten Glättspalt über 300N/mm liegt und eine Pressfläche des beheizten Glättspaltes auf eine Temperatur zwischen 90 und 130°C erwärmt wird.Method for matting a paper, board or another fibrous web (1) in a machine for producing and / or finishing same in which at least one side of the fibrous web (1) is provided with a coating by a coating unit (2) and the fibrous web ( 1) is then passed through at least one heated calendering nip,
characterized in that
the calendering nip is extended, the line force in the heated nip is above 300 N / mm and a pressing surface of the heated nip is heated to a temperature between 90 and 130 ° C.
die Länge des beheizten Glättspaltes zwischen 40 und 90 mm liegt.Method according to claim 1, characterized in that
the length of the heated calendering gap is between 40 and 90 mm.
die Faserstoffbahn (1) durch zwei beheizte Glättspalte geführt wird.A method according to claim 1 or 2, characterized in that
the fibrous web (1) is guided through two heated smoothing gaps.
die beheizten Pressflächen der beheizten Glättspalte auf verschiedenen Seiten der Faserstoffbahn (1) angeordnet sind.A method according to claim 3, characterized in that
the heated pressing surfaces of the heated smoothing column are arranged on different sides of the fibrous web (1).
die Faserstoffbahn (1) durch einen beheizten Glättspalt und einen elastischen Glättspalt läuft, wobei der elastische Glättspalt von zwei Pressflächen gebildet wird, von denen wenigstens eine einen elastischen Bezug besitzt.A method according to claim 1 or 2, characterized in that
the fibrous web (1) passes through a heated calendering nip and an elastic nip, the elastic nip being formed by two press surfaces, at least one of which has an elastic covering.
der elastische Glättspalt vor dem beheizten Glättspalt angeordnet ist.Method according to claim 5, characterized in that
the elastic smoothing nip is arranged in front of the heated calendering nip.
der elastische Glättspalt nach dem beheizten Glättspalt angeordnet ist.Method according to claim 5, characterized in that
the elastic smoothing nip is arranged after the heated nip.
beide Seiten der Faserstoffbahn (1) vom Streichaggregat (2) mit einer Beschichtung versehen werden.Method according to one of the preceding claims, characterized in that
Both sides of the fibrous web (1) from the coating unit (2) are provided with a coating.
der Glättspalt verlängert ist, die Linienkraft im beheizten Glättspalt über 300 N/mm liegt und eine Pressfläche des beheizten Glättspaltes auf eine Temperatur zwischen 90 und 130°C erwärmt wird.Device for matting a paper, board or another fibrous web (1) in a machine for producing and / or finishing the same at at least one side of the fibrous web (1) by a coating unit (2) provided with a coating and the fibrous web ( 1) is then passed through at least one heated calendering nip, in particular for carrying out the method according to any one of the preceding claims, characterized in that
the calendering nip is extended, the line force in the heated nip is above 300 N / mm and a pressing surface of the heated nip is heated to a temperature between 90 and 130 ° C.
die beheizte Pressfläche von einer beheizten Glättwalze (4) gebildet wird.Apparatus according to claim 9, characterized in that
the heated pressing surface is formed by a heated smoothing roll (4).
die nicht-beheizte Pressfläche des beheizten Glättspaltes von einer Schuhpresswalze (3) gebildet wird, deren Walzenmanteloberfläche eine Härte von weniger als 95 Shore (A) aufweist.Apparatus according to claim 9 or 10, characterized in that
the non-heated pressing surface of the heated calendering nip is formed by a shoe press roll (3) whose roll shell surface has a hardness of less than 95 Shore (A).
die Länge des beheizten Glättspaltes zwischen 40 und 90 mm liegt.Device according to one of claims 9 to 11, characterized in that
the length of the heated calendering gap is between 40 and 90 mm.
die Faserstoffbahn (1) durch zwei beheizte Glättspalte geführt wird.Device according to one of claims 9 to 12, characterized in that
the fibrous web (1) is guided through two heated smoothing gaps.
die beheizten Pressflächen der beheizten Glättspalte auf verschiedenen Seiten der Faserstoffbahn (1) angeordnet sind.Apparatus according to claim 13, characterized in that
the heated pressing surfaces of the heated smoothing column are arranged on different sides of the fibrous web (1).
die Faserstoffbahn (1) durch einen beheizten Glättspalt und einen elastischen Glättspalt läuft, wobei der elastische Glättspalt vorzugsweise von zwei Presswalzen (5,6) gebildet wird, von denen wenigstens eine einen elastischen Bezug besitzt.Device according to one of claims 9 to 12, characterized in that
the fibrous web (1) passes through a heated nip and an elastic nip, the elastic nip being preferably formed by two nip rolls (5, 6) at least one of which has an elastic covering.
der elastische Glättspalt vor dem beheizten Glättspalt angeordnet ist.Apparatus according to claim 15, characterized in that
the elastic smoothing nip is arranged in front of the heated calendering nip.
der elastische Glättspalt nach dem beheizten Glättspalt angeordnet ist.Apparatus according to claim 15, characterized in that
the elastic smoothing nip is arranged after the heated nip.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006001021A DE102006001021A1 (en) | 2006-01-07 | 2006-01-07 | Paper mill matt-satin finisher for paper or cardboard has extended heating smoothing gap |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1811083A1 true EP1811083A1 (en) | 2007-07-25 |
EP1811083B1 EP1811083B1 (en) | 2008-11-19 |
Family
ID=38080891
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06124197A Not-in-force EP1811083B1 (en) | 2006-01-07 | 2006-11-16 | Calendering |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1811083B1 (en) |
JP (1) | JP4906500B2 (en) |
AT (1) | ATE414818T1 (en) |
DE (2) | DE102006001021A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2314763A1 (en) * | 2009-09-15 | 2011-04-27 | Voith Patent GmbH | Method for processing a sheet of fibrous material |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002029159A1 (en) * | 2000-10-02 | 2002-04-11 | Metso Paper, Inc. | Method and arrangement for calendering a web comprising a long-nip calender |
EP1314819A2 (en) * | 2001-11-24 | 2003-05-28 | Voith Paper Patent GmbH | Calender and method for smoothing paper or cardboard webs |
EP1467019A2 (en) * | 2003-04-11 | 2004-10-13 | Voith Paper Patent GmbH | Arrangement for treating a paper or board web |
EP1491680A1 (en) * | 2003-06-20 | 2004-12-29 | Voith Paper Patent GmbH | Method for smoothing a paper or board web and extended nip calender |
EP1571257A1 (en) * | 2004-03-06 | 2005-09-07 | Voith Paper Patent GmbH | Process and apparatus for the treatment of a paper or board web |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI991108A (en) * | 1999-05-14 | 2000-11-15 | Valmet Corp | Method and apparatus for the manufacture of calendered paper or calendered paperboard |
FI113288B (en) * | 2000-02-16 | 2004-03-31 | Metso Paper Inc | Method and apparatus for calendering paper |
FI115730B (en) * | 2000-05-03 | 2005-06-30 | Metso Paper Inc | Band calender and method for calendering a web of material in a band calender |
JP2005089950A (en) * | 2003-08-12 | 2005-04-07 | Mitsubishi Heavy Ind Ltd | Calendar system, paper produced by the calendar system, and calendar processing method |
JP4228903B2 (en) * | 2003-12-12 | 2009-02-25 | 王子製紙株式会社 | Method for producing coated paper for printing |
JP2006132030A (en) * | 2004-11-05 | 2006-05-25 | Nippon Paper Industries Co Ltd | Printing coated paper |
-
2006
- 2006-01-07 DE DE102006001021A patent/DE102006001021A1/en not_active Withdrawn
- 2006-11-16 AT AT06124197T patent/ATE414818T1/en active
- 2006-11-16 EP EP06124197A patent/EP1811083B1/en not_active Not-in-force
- 2006-11-16 DE DE502006002116T patent/DE502006002116D1/en active Active
- 2006-12-27 JP JP2006352075A patent/JP4906500B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002029159A1 (en) * | 2000-10-02 | 2002-04-11 | Metso Paper, Inc. | Method and arrangement for calendering a web comprising a long-nip calender |
EP1314819A2 (en) * | 2001-11-24 | 2003-05-28 | Voith Paper Patent GmbH | Calender and method for smoothing paper or cardboard webs |
EP1467019A2 (en) * | 2003-04-11 | 2004-10-13 | Voith Paper Patent GmbH | Arrangement for treating a paper or board web |
EP1491680A1 (en) * | 2003-06-20 | 2004-12-29 | Voith Paper Patent GmbH | Method for smoothing a paper or board web and extended nip calender |
EP1571257A1 (en) * | 2004-03-06 | 2005-09-07 | Voith Paper Patent GmbH | Process and apparatus for the treatment of a paper or board web |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2314763A1 (en) * | 2009-09-15 | 2011-04-27 | Voith Patent GmbH | Method for processing a sheet of fibrous material |
Also Published As
Publication number | Publication date |
---|---|
EP1811083B1 (en) | 2008-11-19 |
JP4906500B2 (en) | 2012-03-28 |
ATE414818T1 (en) | 2008-12-15 |
DE102006001021A1 (en) | 2007-07-12 |
JP2007182666A (en) | 2007-07-19 |
DE502006002116D1 (en) | 2009-01-02 |
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