WO1994028239A1 - Pressing arrangement for a moving web - Google Patents

Pressing arrangement for a moving web Download PDF

Info

Publication number
WO1994028239A1
WO1994028239A1 PCT/SE1993/000730 SE9300730W WO9428239A1 WO 1994028239 A1 WO1994028239 A1 WO 1994028239A1 SE 9300730 W SE9300730 W SE 9300730W WO 9428239 A1 WO9428239 A1 WO 9428239A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
press
roll
web
pressing arrangement
Prior art date
Application number
PCT/SE1993/000730
Other languages
French (fr)
Inventor
Erik Nykopp
Original Assignee
Erik Nykopp
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
Priority claimed from SE19939301802A external-priority patent/SE9301802D0/en
Application filed by Erik Nykopp filed Critical Erik Nykopp
Priority to BR9307856A priority Critical patent/BR9307856A/en
Priority to AT93919793T priority patent/ATE191023T1/en
Priority to KR1019950705258A priority patent/KR960703446A/en
Priority to PL93311744A priority patent/PL171819B1/en
Priority to DE69328199T priority patent/DE69328199T2/en
Priority to JP6503608A priority patent/JP2899414B2/en
Priority to EP93919793A priority patent/EP0700470B1/en
Publication of WO1994028239A1 publication Critical patent/WO1994028239A1/en
Priority to FI955672A priority patent/FI111090B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/006—Calenders; Smoothing apparatus with extended nips
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0209—Wet presses with extended press nip
    • D21F3/0218—Shoe presses
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F3/00—Press section of machines for making continuous webs of paper
    • D21F3/02—Wet presses
    • D21F3/0281—Wet presses in combination with a dryer roll
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus
    • D21G1/0066—Calenders; Smoothing apparatus using a special calendering belt

Definitions

  • the present invention concerns a pressing arrangement for a moving web in accordance with the preamble of claim 1.
  • the unit is principally
  • the press roll is heated to a temperature of at least 100° Celcius.
  • a press arrangement for a moving web is known thru International Application PCT/SE92/00041 wherein a shoe is under applied pressure via a glide belt between a press roll and a counter roll, the shoe having a concave form following the contour of the press roll on the press roll side and a nonconcave contour on the supporting counter roll side.
  • a press arrangement is known thru U.S.Patent 4,287,021 wherein a concave shoe is under pressure via a carrying belt guided over a plurality of guide rolls and an endless guide belt guided over an annular shell supported by a beam structure or over guide rolls.
  • the carrying belt receives water from the web in the press zone.
  • a calendering arrangement is known thru Offenlegungsschrift DE 3632692 Al wherein a web is transported thru a calender nip formed between two rolls where both rolls are controllably driven and a soft belt encloses one of the rolls.
  • An "ironing" action is achieved on the web by pressing the rolls very lightly against eachother and driving them at different speeds so as to produce a satinating effect ⁇ thru friction.
  • One main purpose wih the present invention is to achieve a pressing arrangement of the general type indicated in the introduction wherein the moving web is pressed against the press roll with a uniform pressure independent of variations in the thickness of the moving web. Another purpose is to achieve effective cooling of the belt. A further purpose is to provide the possibility of preheating the web in a controlled manner prior to the press zone.
  • the invented pressing arrangement has the characterizing features set fort in the main claim. In this manner one obtains a smooth and uniform web surface on the side facing the press roll, irrespective of variations in the thickness of the web.
  • the moving web is subjected to pressure in the press zone formed between a press roll and an elastic belt which is supported by a roll of suitable diameter or a stationary glide body or shoe.
  • average unit pressures in the press zone have to be relatively high, i.e. a minimum of approximately? MPa and the surface temperature of the press roll at least 100° Celsius, preferably between 150 and 250°C.
  • the web facing side of the belt would be surface finished to a roughness of typically 2 microns but importantly to a finish which yields • a; more uniform surface structure than that of the side of the web in contact with it in the press zone, e.g. at least the same, suitably 50%, preferably 25%, and especially 10% of the average pore size of the web.
  • the high unit pressures in the press zone cause the smooth elastic belt to follow the contour of the less uniform side of the web facing it, thus resulting in a very even pressure on the web. As a cosequence this will enhance the uniformity ,>and - ⁇ - evenness of the pressing action on the side of the web facing the press roll.
  • the pressing action would typically cause a minimum thickness reduction in the belt equal to about 3% in the middle of the press zone. This would normally represent an indentation which is considerably more than the deepest nonuniformity in typical paper or board.
  • the cooling action on the backside of the moving belt by means of coolant in the supporting counter body protects the belt from overheating in the middle where where the reinforcing structure normally is located.
  • the supporting counter body constitutes a cylindrical roll and thus the inside of the belt, facing this roll, could have a relatively nonuniform surface as said surfacecontacts a moving surface (roll) instead of sliding over stationary parts in the press zone.
  • a desired length of the press zone can further be achieved by selecting a proper diameter for the roll. The bigger the diameter of both the press roll and the counter roll, the longer will be the press zone.
  • the length of the press zone is also a function of the elasticity and thickness of the moving belt which encloses the counter roll. In practice, the length of the press zone can be between approximately 1 and 10 centimeters.
  • the indentation in the belt could then be about 1 mm.
  • the surface roughness of the side of the belt facing the web is suitably 5 microns, preferably 2 microns, and most preferably 1 micron.
  • the counter roll could be cooled by water whereas oil, circulating in a closed loop including an oil cooler, could preferentially be utilized when the supporting counter body constitutes a glide shoe or glide body.
  • fig. 1 is an endview of the embodiment of the invention as a partial crossection with a roll constituting the supporting counter body
  • SUBSTITUTE SHEET fig. 2 is an endview of an alternative embodiment of the invention as a partial crossection with a glide body constituting the supporting counter body
  • fig. 3 is an endview of a partial crossection illustrating an adjustable guide roll to obtain a preheating zone of an adjustable length prior to the press zone.
  • Fig. 1 shows a pressing arrangement for a moving web, formed between a cylindrical press roll 1 and a belt 5 supported by a counter body constituting a., roll 2.
  • a moving web 6 is passed between the rotating press roll and the moving belt.
  • a guide roll 3 and a stretch roll 4 are provided for guiding the belt and maintaining it under proper tension.
  • the press and counter rolls are forced against eachother by arbitrary, known loading mechanisms not shown here, thus producing the press zone 7.
  • the press roll is heated to a temperature of at least 100°C
  • the counter roll can be cooled by known means not shown here.
  • the counter body constitutes a glide body 9 which is supported by a beam 15.
  • a lubricating duct 10 and lubricating nozzles 12 are provided for lubricating the area between the glide body 9 and the moving belt 5.
  • a duct 13 is indicated for a cooling fluid which transfers heat within a closed loop including a heat exchanger.
  • Arbitrary, known loading mechanisms for applying load between the press roll and the glide body are not shown here.
  • the glide body can be adjusted from the end flanges 50 as indicated by the arrows 52.
  • the moving web 6 passes between the press roll 1 and the moving belt 5 in the press zone 7.
  • an adjustable 14 guide roll 16 is shown and has been included for the purpose of obtaining a preheating zone 8 of variable length prior to the press zone 7.
  • the moving belt 5 encloses guide roll 16. With the exception of this guide roll the arrangement is similar to that shown in fig. 1.

Abstract

The invention concerns a pressing arrangement for a moving web (6), comprising a press roll (1) which forms a press zone (7) with a moving elastic belt (5) which is endless and supported by a counter body (2, 9). The outside of the belt is surface finished to a roughness which is more uniform than the side of the web contacting it. The press roll is heated to a temperature of at least 100 °C. The arrangement is principally intended for surface finishing of fiber mats such as paper or board. A method is indicated whereby preheating of the web prior to the press zone is achieved.

Description

Pressing arrangement for & moving web
Technical field
The present invention concerns a pressing arrangement for a moving web in accordance with the preamble of claim 1. The unit is principally
< intended for surface finishing of fiber mats such as paper or board which under pressure pass between the press roll and the moving belt. The press roll is heated to a temperature of at least 100° Celcius.
Technical stand
A press arrangement for a moving web is known thru International Application PCT/SE92/00041 wherein a shoe is under applied pressure via a glide belt between a press roll and a counter roll, the shoe having a concave form following the contour of the press roll on the press roll side and a nonconcave contour on the supporting counter roll side.
Further in prior art, a press arrangement is known thru U.S.Patent 4,287,021 wherein a concave shoe is under pressure via a carrying belt guided over a plurality of guide rolls and an endless guide belt guided over an annular shell supported by a beam structure or over guide rolls. The carrying belt receives water from the web in the press zone.
In both of these references the press arrangement is piincipally intended for removing water from a moving web on a carrying belt and thus the moving belt will not come into contact with the web. As a consequece, surface uniformity and elasticity of the belt are unimportant and not called for properties.
Additionally in prior art, a calendering arrangement is known thru Offenlegungsschrift DE 3632692 Al wherein a web is transported thru a calender nip formed between two rolls where both rolls are controllably driven and a soft belt encloses one of the rolls. An "ironing" action is achieved on the web by pressing the rolls very lightly against eachother and driving them at different speeds so as to produce a satinating effect \ thru friction. With this arrangement the surface improvement of the web
* is obtained" solely thru a speed difference and frictional polishing action between the web and the roll facing the web.
SUBSTITUTE SHEET Description of JJIS invention
One main purpose wih the present invention is to achieve a pressing arrangement of the general type indicated in the introduction wherein the moving web is pressed against the press roll with a uniform pressure independent of variations in the thickness of the moving web. Another purpose is to achieve effective cooling of the belt. A further purpose is to provide the possibility of preheating the web in a controlled manner prior to the press zone.
To achieve the main purpose, the invented pressing arrangement has the characterizing features set fort in the main claim. In this manner one obtains a smooth and uniform web surface on the side facing the press roll, irrespective of variations in the thickness of the web.
The moving web is subjected to pressure in the press zone formed between a press roll and an elastic belt which is supported by a roll of suitable diameter or a stationary glide body or shoe. To obtain desired effects average unit pressures in the press zone have to be relatively high, i.e. a minimum of approximately? MPa and the surface temperature of the press roll at least 100° Celsius, preferably between 150 and 250°C. The web facing side of the belt would be surface finished to a roughness of typically 2 microns but importantly to a finish which yields • a; more uniform surface structure than that of the side of the web in contact with it in the press zone, e.g. at least the same, suitably 50%, preferably 25%, and especially 10% of the average pore size of the web. The high unit pressures in the press zone cause the smooth elastic belt to follow the contour of the less uniform side of the web facing it, thus resulting in a very even pressure on the web. As a cosequence this will enhance the uniformity ,>and -■- evenness of the pressing action on the side of the web facing the press roll. The pressing action would typically cause a minimum thickness reduction in the belt equal to about 3% in the middle of the press zone. This would normally represent an indentation which is considerably more than the deepest nonuniformity in typical paper or board.
The cooling action on the backside of the moving belt by means of coolant in the supporting counter body protects the belt from overheating in the middle where where the reinforcing structure normally is located.
SUBSTITUTE SHEET To achieve the additional advantage of preheating the moving web prior to the press zone the moving web is pressed against the heated press roll by the moving belt following said roll ahead of the press zone. This pressure is a function of the tension in the belt and can thus be considerable depending on the physical properties of the belt and certainly much higher than if the moving web alone (without the belt) would be contacting the press roll. It is also desirable to control the time of contact (preheating) prior to the press zone which can be done by adjusting the guide roll guiding the belt ahead of the press zone.
In a preferred embodiment of the present invention the supporting counter body constitutes a cylindrical roll and thus the inside of the belt, facing this roll, could have a relatively nonuniform surface as said surfacecontacts a moving surface (roll) instead of sliding over stationary parts in the press zone. With the counter body constituting a roll, a desired length of the press zone can further be achieved by selecting a proper diameter for the roll. The bigger the diameter of both the press roll and the counter roll, the longer will be the press zone. The length of the press zone is also a function of the elasticity and thickness of the moving belt which encloses the counter roll. In practice, the length of the press zone can be between approximately 1 and 10 centimeters. 10 cm press zone lengths could be achieved with the use of relatively large (diameter = about 1,5 meters) rolls in conjunction with an elastic belt 1 cm thick. The indentation in the belt could then be about 1 mm. The surface roughness of the side of the belt facing the web is suitably 5 microns, preferably 2 microns, and most preferably 1 micron. The counter roll could be cooled by water whereas oil, circulating in a closed loop including an oil cooler, could preferentially be utilized when the supporting counter body constitutes a glide shoe or glide body.
Brief description Q£ lbs drawings
The invention shall now be elucidated in the following with reference to schematically illustrated nonlimiting examples of pressing shown on the attached drawings. Thus on the drawings: fig. 1 is an endview of the embodiment of the invention as a partial crossection with a roll constituting the supporting counter body,
SUBSTITUTE SHEET fig. 2 is an endview of an alternative embodiment of the invention as a partial crossection with a glide body constituting the supporting counter body, fig. 3 is an endview of a partial crossection illustrating an adjustable guide roll to obtain a preheating zone of an adjustable length prior to the press zone.
Description oi preferred embodiments
In the drawings, identical reference numbers are used to indicate the same or similar details.
Fig. 1 shows a pressing arrangement for a moving web, formed between a cylindrical press roll 1 and a belt 5 supported by a counter body constituting a., roll 2. A moving web 6 is passed between the rotating press roll and the moving belt. A guide roll 3 and a stretch roll 4 are provided for guiding the belt and maintaining it under proper tension. The press and counter rolls are forced against eachother by arbitrary, known loading mechanisms not shown here, thus producing the press zone 7. The press roll is heated to a temperature of at least 100°C The counter roll can be cooled by known means not shown here.
In fig. 2 the counter body constitutes a glide body 9 which is supported by a beam 15. A lubricating duct 10 and lubricating nozzles 12 are provided for lubricating the area between the glide body 9 and the moving belt 5. A duct 13 is indicated for a cooling fluid which transfers heat within a closed loop including a heat exchanger. Arbitrary, known loading mechanisms for applying load between the press roll and the glide body are not shown here. The glide body can be adjusted from the end flanges 50 as indicated by the arrows 52. The moving web 6 passes between the press roll 1 and the moving belt 5 in the press zone 7.
In fig. 3 an adjustable 14 guide roll 16 is shown and has been included for the purpose of obtaining a preheating zone 8 of variable length prior to the press zone 7. The moving belt 5 encloses guide roll 16. With the exception of this guide roll the arrangement is similar to that shown in fig. 1.
When practical solutions of details in the pressing arrangement according to the invention have not been described more comprehensively, they fall within known or customary practice in the art to which this invention pertains and are easily perceived by someone skilled in the art.
SUBSTITUTE SHEET

Claims

Cl ms
1. A pressing arrangement for a moving web (6) icluding a press zone (7) for the moving web (6) formed between a cylindrical press roll (1) and belt (5), said belt being endless and supported by a counter body, CHARACTERIZED in that the belt (5) is elastic and has a surface which is more uniform than the surface structure of the moving web (6), and in that the surface temperature of the press roll is at least 100°C
2. A pressing arrangement as claimed in Claim 1, CHARACTERIZED in that the surface structure of the side of the belt (5) facing the web (6) has a pore size which is at least the same, suitably 50%, preferably 25% and most preferably 10% of the average pore size of the moving web (6), and/or that the surface roughness of the side of the belt (5) facing the web (6) is at least 5 microns, preferably 2 microns, and most preferably 1 micron.
3. A pressing arrangement as claimed in Claim 1 or 2, CHARACTERIZED in that said counter body is provided with cooling means.
4. A pressing arrangement as claimed in Claim 1, 2, or 3, CHARACTERIZED in that said counter body constitutes a roll (1).
5. A pressing arrangement as claimed in Claim 1, 2, or 3, CHARACTERIZED in that said counter body constitutes a stationary glide body (9).
6. A pressing arrangement as claimed in anyone of the above claims, CHARACTERIZED in that the moving belt (5) is guided into the press zone (7) via the press roll (1) thus providing a preheating zone (8) prior to the press zone (7).
7. A pressing arrangement as claimed in Claim 6, CHARACTERIZED in that the moving belt (5) is guided into the press zone (7) via the press roll (1) by means of a guide roll (16).
8. A pressing arrangement as claimed in Claim 6, CHARACTERIZED in that the length of the preheating zone (8) is adjustable.
9. A pressing arrangement as claimed in Claim 7 and Claim £', CHARACTERIZED in that the length of the preheating zone (8) is adjusted by means of the guide roll (16).
10. A pressing arrangement as claimed in anyone of the above claims, CHARACTERIZED in that the thickness of the moving belt (5) in the center of the press zone (7) is less than 97% of the thickness of the unloaded belt.
SUBSTITUTE SHEET
PCT/SE1993/000730 1993-05-27 1993-09-08 Pressing arrangement for a moving web WO1994028239A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BR9307856A BR9307856A (en) 1993-05-27 1993-09-08 Pressing arrangement for mobile screen
AT93919793T ATE191023T1 (en) 1993-05-27 1993-09-08 PRESS ARRANGEMENT FOR A RUNNING MATERIAL LINE
KR1019950705258A KR960703446A (en) 1993-05-27 1993-09-08 PRESSING ARRANGEMENT FOR A MOUING WEB
PL93311744A PL171819B1 (en) 1993-05-27 1993-09-08 Apparatus for ironing moving reeled fabrics
DE69328199T DE69328199T2 (en) 1993-05-27 1993-09-08 PRESS ARRANGEMENT FOR A RUNNING MATERIAL
JP6503608A JP2899414B2 (en) 1993-05-27 1993-09-08 Pressing device for moving web
EP93919793A EP0700470B1 (en) 1993-05-27 1993-09-08 Pressing arrangement for a moving web
FI955672A FI111090B (en) 1993-05-27 1995-11-24 Moving web compression arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9301802-6 1993-05-27
SE19939301802A SE9301802D0 (en) 1992-09-09 1993-05-27 PRESS ARRANGEMENT FOR A MOVING WEB

Publications (1)

Publication Number Publication Date
WO1994028239A1 true WO1994028239A1 (en) 1994-12-08

Family

ID=20390063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000730 WO1994028239A1 (en) 1993-05-27 1993-09-08 Pressing arrangement for a moving web

Country Status (10)

Country Link
EP (1) EP0700470B1 (en)
JP (1) JP2899414B2 (en)
KR (1) KR960703446A (en)
AT (1) ATE191023T1 (en)
BR (1) BR9307856A (en)
CA (1) CA2163532A1 (en)
DE (1) DE69328199T2 (en)
FI (1) FI111090B (en)
PL (1) PL171819B1 (en)
WO (1) WO1994028239A1 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5694837A (en) * 1992-10-09 1997-12-09 Champion International Corporation Apparatus for finsihing a continuous sheet of paper
US5728268A (en) * 1995-01-10 1998-03-17 The Procter & Gamble Company High density tissue and process of making
WO1999023305A1 (en) * 1997-10-31 1999-05-14 Beloit Technologies, Inc. Soft nip calender
US5980691A (en) * 1995-01-10 1999-11-09 The Procter & Gamble Company Smooth through air dried tissue and process of making
US6007921A (en) * 1992-10-09 1999-12-28 Champion International Corporation Continuous finishing belt capable of finishing surface of a web of paper
US6190500B1 (en) 1998-10-02 2001-02-20 International Paper Company Multilayer linerboard having improved printing properties and related method of manufacture
US6203307B1 (en) * 1997-08-28 2001-03-20 Champion International Corporation System for finishing surface of a web of paper having an improved continuous finishing belt
US6287424B1 (en) 1998-09-22 2001-09-11 International Paper Company Method for finishing paperboard to achieve improved smoothness
US6332953B1 (en) 1998-10-02 2001-12-25 International Paper Company Paper product having enhanced printing properties and related method of manufacture
US6397739B1 (en) * 1997-04-02 2002-06-04 Valmet Corporation Calendering method and a calender that makes use of the method
US6418840B1 (en) * 1997-04-02 2002-07-16 Metso Paper, Inc. Calendering method and a calender that makes use of the method
US6551453B2 (en) 1995-01-10 2003-04-22 The Procter & Gamble Company Smooth, through air dried tissue and process of making
EP0966566B1 (en) * 1996-12-10 2003-05-07 Metso Paper, Inc. Method of and arrangement for treating a fiber web
US6821386B2 (en) 1995-01-10 2004-11-23 The Procter & Gamble Company Smooth, micropeak-containing through air dried tissue
US6946186B2 (en) 2002-08-24 2005-09-20 International Paper Co. Uncoated facestock for adhesive-backed labels

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101694076A (en) 2003-05-13 2010-04-14 王子制纸株式会社 Press for paper machine with smoothing press and paper manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632692A1 (en) * 1985-10-04 1987-04-09 Waertsilae Oy Ab CALENDAR PACKAGE LIKE SUPER CALENDAR
WO1992013134A1 (en) * 1991-01-24 1992-08-06 Erik Nykopp Press arrangement for a moving web

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3632692A1 (en) * 1985-10-04 1987-04-09 Waertsilae Oy Ab CALENDAR PACKAGE LIKE SUPER CALENDAR
WO1992013134A1 (en) * 1991-01-24 1992-08-06 Erik Nykopp Press arrangement for a moving web

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5750259A (en) * 1992-10-09 1998-05-12 Neider; Thomas M. Method and apparatus for finishing a continuous sheet of paper
US6007921A (en) * 1992-10-09 1999-12-28 Champion International Corporation Continuous finishing belt capable of finishing surface of a web of paper
US5694837A (en) * 1992-10-09 1997-12-09 Champion International Corporation Apparatus for finsihing a continuous sheet of paper
US6551453B2 (en) 1995-01-10 2003-04-22 The Procter & Gamble Company Smooth, through air dried tissue and process of making
US5728268A (en) * 1995-01-10 1998-03-17 The Procter & Gamble Company High density tissue and process of making
US5855738A (en) * 1995-01-10 1999-01-05 The Procter & Gamble Company High density tissue and process of making
US6821386B2 (en) 1995-01-10 2004-11-23 The Procter & Gamble Company Smooth, micropeak-containing through air dried tissue
US5980691A (en) * 1995-01-10 1999-11-09 The Procter & Gamble Company Smooth through air dried tissue and process of making
EP0966566B1 (en) * 1996-12-10 2003-05-07 Metso Paper, Inc. Method of and arrangement for treating a fiber web
US6397739B1 (en) * 1997-04-02 2002-06-04 Valmet Corporation Calendering method and a calender that makes use of the method
US6418840B1 (en) * 1997-04-02 2002-07-16 Metso Paper, Inc. Calendering method and a calender that makes use of the method
US6203307B1 (en) * 1997-08-28 2001-03-20 Champion International Corporation System for finishing surface of a web of paper having an improved continuous finishing belt
WO1999023305A1 (en) * 1997-10-31 1999-05-14 Beloit Technologies, Inc. Soft nip calender
US6287424B1 (en) 1998-09-22 2001-09-11 International Paper Company Method for finishing paperboard to achieve improved smoothness
US6497790B2 (en) 1998-09-22 2002-12-24 International Paper Company Paperboard of improved smoothness and bulk
US6332953B1 (en) 1998-10-02 2001-12-25 International Paper Company Paper product having enhanced printing properties and related method of manufacture
US6190500B1 (en) 1998-10-02 2001-02-20 International Paper Company Multilayer linerboard having improved printing properties and related method of manufacture
US6946186B2 (en) 2002-08-24 2005-09-20 International Paper Co. Uncoated facestock for adhesive-backed labels
US7666495B2 (en) 2002-08-24 2010-02-23 International Paper Company Uncoated facestock for adhesive-backed labels
US7794567B2 (en) 2002-08-24 2010-09-14 International Paper Co. Uncoated facestock for adhesive-backed labels

Also Published As

Publication number Publication date
DE69328199T2 (en) 2000-10-05
FI111090B (en) 2003-05-30
JP2899414B2 (en) 1999-06-02
PL311744A1 (en) 1996-03-18
PL171819B1 (en) 1997-06-30
DE69328199D1 (en) 2000-04-27
CA2163532A1 (en) 1994-12-08
EP0700470A1 (en) 1996-03-13
EP0700470B1 (en) 2000-03-22
ATE191023T1 (en) 2000-04-15
BR9307856A (en) 1996-01-16
FI955672A0 (en) 1995-11-24
FI955672A (en) 1995-11-24
KR960703446A (en) 1996-08-17
JPH08510014A (en) 1996-10-22

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