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US20100252215A1 - Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement - Google Patents

Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement Download PDF

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Publication number
US20100252215A1
US20100252215A1 US12/746,790 US74679008A US2010252215A1 US 20100252215 A1 US20100252215 A1 US 20100252215A1 US 74679008 A US74679008 A US 74679008A US 2010252215 A1 US2010252215 A1 US 2010252215A1
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US
United States
Prior art keywords
board
smoothing
web
arrangement according
press
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.)
Abandoned
Application number
US12/746,790
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English (en)
Inventor
Pekka Kylliainen
Kari Raisanen
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.)
Stora Enso Oyj
Valmet Technologies Oy
Original Assignee
Stora Enso Oyj
Metso Paper Oy
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 Stora Enso Oyj, Metso Paper Oy filed Critical Stora Enso Oyj
Assigned to METSO PAPER, INC., STORA ENSO OYJ reassignment METSO PAPER, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KYLLIAINEN, PEKKA, RAISANEN, KARI
Assigned to METSO PAPER, INC., STORA ENSO OYJ reassignment METSO PAPER, INC. CORRECTIVE ASSIGNMENT TO CORRECT THE AMOUNT OF THE INTEREST ASSIGNED PREVIOUSLY RECORDED ON REEL 024549 FRAME 0610. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT OF...THE ENTIRE RIGHT, TITLE AND INTEREST..... Assignors: KYLLIAINEN, PEKKA, RAISANEN, KARI
Publication of US20100252215A1 publication Critical patent/US20100252215A1/en
Assigned to VALMET TECHNOLOGIES, INC. reassignment VALMET TECHNOLOGIES, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: METSO PAPER, INC.
Abandoned 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
    • 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
    • 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
    • D21F3/04—Arrangements thereof
    • D21F3/045—Arrangements thereof including at least one extended press nip
    • 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
    • D21F5/02—Drying on cylinders
    • D21F5/04—Drying on cylinders on two or more drying cylinders
    • 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 relates to an arrangement in connection with the press section of a web-forming machine, which arrangement includes
  • the present invention also relates to a board or paper produced in such arrangement.
  • the press section In the press section of a web-forming machine lots of water is rapidly removed from the web.
  • the press section has usually one or two press nips and press felts are also used.
  • the press nip is often formed of two rolls arranged to be loaded against each other.
  • the quick removing of water causes surface densification of the same side of the web where the water is removed. Simultaneously, an oil absorption reduction appears and the print quality degrades.
  • a smoothing press is arranged after the press section. Traditionally the smoothing press includes two rolls forming a nip. The web is thus pressed in the nip without any press felt. Due to this fact water is not removed from the web in the smoothing press. However, both surfaces of the wet web get smoother which improves drying of the web in the drying section.
  • One target in the web-forming is to maintain both sides of the web as symmetrical as possible.
  • this has occasionally required very complicated structures in the press sections and smoothing presses.
  • the water may turn to steam with a sudden heat or press impulse. This leads to delamination of the web.
  • the brightness and opacity of the web may decrease and the web can stick to the surfaces, for example to the surface of the roll.
  • the invention is intended to create a new type of arrangement in connection with the press section of a web-forming machine by means of which arrangement the quality of the surfaces of the web can be improved together with better drying properties.
  • the characteristic features of this invention are stated in the accompanying Claims.
  • the arrangement according to the invention is a new kind of combination of a press nip and a smoothing press.
  • the smoothing press according to the invention the web is heated efficiently without any risk of delamination. Simultaneously, both surfaces of the web get smooth which intensifies drying of the web. Other properties and advantages of the arrangement are discussed later.
  • the paper or board produced in the arrangement according to the invention has surprisingly improved properties, above all, the initial smoothness of the paper or board product is improved resulting in improved stiffness and more efficient drying of the paper or board. Dry content of 60% or more enables smoothing with lower nip loads and without the need of moisturising.
  • the smoothing press can be applied for paper or board products independent of the of content with appropriate moisturising and even just before reeling.
  • FIG. 1 shows a schematic drawing of a side view of the arrangement according to the invention
  • FIG. 2 shows a schematic drawing of a side view of the embodiment of the arrangement according to the invention.
  • FIG. 1 shows an arrangement according to the invention in connection with the press section of a web-forming machine.
  • the arrangement includes at least one press nip 10 for dewatering the web 11 manufactured on a web-forming machine. In FIG. 1 there is actually three press nips.
  • the arrangement also includes a smoothing press 12 including a smoothing roll 13 .
  • the smoothing press 12 is arranged after the press nip 10 . When arriving to the smoothing press, the web has a dry content of 60% or more.
  • the smoothing press 12 also includes smooth heat carrying means 14 ′, such as a belt 14 .
  • the belt is preferably made of metal.
  • the metal belt is smooth and has no void volume for water removal.
  • the belt 14 is arranged as a loop around at least two guide rolls 15 .
  • the smoothing roll 13 is then arranged into contact with the belt 14 between two guide rolls 15 .
  • a non-water removing long nip area is formed with the metal belt.
  • the web is guided between the belt and the smoothing roll. Then both surfaces of the web will be smoothened in this long wrap metal belt smoothing nip.
  • the smoothing roll 13 and/or at least one of the guide rolls 15 is arranged to be heated by steam.
  • the web is also heated in an efficient way. In practice the rolls are internally heated, for example, with steam.
  • the press nip 10 is a roll nip or a long nip press.
  • a long nip and low specific pressure in the press nip is very beneficial to the final bulk and bending stiffness of the paper or board.
  • the long nip press is a shoe press. With the shoe press high amount of water can be removed from the web. This increases both bulk and dry content of the paper or board but it can make the surfaces of the web porous.
  • the web is then smoothened in the smoothing press according to the invention. This results in a paper or board with improved bulk or in a paper or board with improved surface properties with standard bulk. Simultaneously, drying efficiency can be improved since the contact between the web and the drying rolls is improved.
  • the belt and the smoothing roll have very smooth surfaces which is important in view of smoothing. Due to the long nip area in the smoothing press heat has time to penetrate through the web and thus also to increasing the temperature of the middle layer of the web.
  • the smoothing press according to the invention has a more efficient heating equipment compared to prior art.
  • the smoothing roll 13 can be a steam cylinder or a steam heated roll modified thereof.
  • at least one of the guide rolls 15 can be a steam cylinder or steam heated roll modified thereof.
  • a combination of the first two embodiments is also possible.
  • all guide rolls 15 can be steam cylinders or steam heated rolls modified thereof. Steam is very efficient source of heat and the structure of a steam cylinder is simple. The required temperatures can be achieved with a steam system of 1-10 bar. Temperatures of smoothing press are around 20-300° C., preferably 50-170° C.
  • auxiliary heating means 21 for the rolls 13 , 15 .
  • the auxiliary heating means can include, for example infrared, resistive, inductive or gas-burner heater. There can be also a combination of the above mentioned heaters and the belt can also be heated. Some special arrangements can also be equipped with above mentioned auxiliary heating means without any steam heated solutions.
  • the diameter of the smoothing roll 13 and/or the guide roll 15 is 1000-2500 mm, preferably 1300-2000 mm.
  • the smoothing press 12 also has an own hood 16 . In this way it is possible to independently control the smoothing press and runaway heat flows can be avoided. Also excess or extra moisture can be handled with removal of moist air.
  • the hood can also be common with the hood of the drying section.
  • FIG. 1 there is an open draw from the press nip 10 to the smoothing press 12 .
  • the tail threading is handled for example by ropes arranged to the side of the press section.
  • vacuum belt conveyors and air blowings can be used.
  • the belt can be made of metal, for example of steel.
  • the thickness of the metal belt is about 1 mm.
  • the tension of the belt 14 is 0.3-15 kN/m, preferably 5-10 kN/m.
  • the position and alignment of one or more guide rolls can be adjusted.
  • the smoothing press can be controlled for every situation.
  • the web may dust during smoothing. Also fibres, fines, chemical deposit or stickies can stick to the surface of the rolls or belt.
  • cleaning equipments 17 which include high-pressure water cleaners preferably in connection with both the smoothing roll 13 and the belt 14 .
  • the cleaners are used continuously and bigger particles are removed with doctors 18 .
  • the temperature of the cleaning medium can be risen close to 100° C. which also reduces the cooling effect of the cleaners.
  • the smoothing effect of the smoothing press is achieved by long wrap metal belt nip area together with smooth surfaces of the belt 14 and the smoothing roll 13 , and heating.
  • the length of the nip is 500-2500 mm, preferably 1000-2000 mm.
  • the smoothing press 12 has a linear load which is 1-150 kN/m, preferably 5-100 kN/m.
  • This nip pressure can be adjusted for example by moving one guide roll.
  • the smoothing roll 13 can be equipped with a counter roll 20 which is arranged inside the belt 14 arranged as a loop. By loading the counter roll against the smoothing roll, the nip pressure is locally increased.
  • the counter roll is preferably a crowned or tube a roll.
  • the smoothing roll 13 is arranged into contact with the belt 14 between two guide rolls 15 .
  • the rolls are situated in such a way that the smoothing roll 13 and the belt 14 form two gaps 19 which open downwards.
  • the gaps are under the loop which keeps the smoothing press clean if threading tail breaks. Also, if something else than the web enters into the closing gap, it will come out and fall underneath the smoothing press by way of gravity.
  • the second embodiment of the present invention shown in FIG. 2 includes a dryer 22 arranged between the press section and the smoothing press 12 .
  • the dryer 22 is for increasing the temperature of the web and decreasing the water content therein. Thus the smoothing process becomes more effective.
  • the dryer 22 includes four steam cylinders and one drying wire. This web-preheating arrangement according to FIG. 2 also enables less or no heating in the actual smoothing press.
  • the web is guided from the smoothing press to the drying section. Due to the smoothing press according to the invention the first drying cylinder can be warmer than previously.
  • the above mentioned arrangement is advantageous when forming board and especially board with one or more plies.
  • the drying of the different plies of the board will occur at different times, i.e. the middle ply will have a different drying time than the top plies.
  • the shrinking forces of different plies are different in the top and middle of the web. In other words, when the top ply shrinks, the middle ply is still wet and can not resist shrinkage. This causes defects of the surface properties of the board and especially in the edge areas of the board where the board can dry freely.
  • the temperature of the web can be raised.
  • the effect of z-directional shrinkage difference can be minimized.
  • higher initial cylinder temperatures can be used in the drying section. This improves the drying capacity of the drying section as a whole.
  • the improved smoothness of the web will increase the friction between drying cylinders and drying fabrics. This will improve the surface properties of the board especially in the edge areas.
  • the arrangement according to the invention is compact and it has many advantageous features. Due to the long wrap metal smoothing nip, the web has higher dry content than in the ordinary smoothing press. Also, the surfaces of both sides of the web are very similar. The components of this arrangement are simple so the founding costs are low. Also, there are only minor press felt markings on the web after leaving the smoothing press. The web has very good smoothness and bulk both after the press section and also for the end product. As mentioned earlier, this leads to improved contact between drying cylinders and drying fabrics. Also the drying shrinkage is reduced and the temperature transmission from drying cylinders to the web is improved. When the drying efficiency gets higher the production capacity can be improved or higher bulk can be achieved after the press section.
  • the press section has few press nips.
  • the structure of the press section is thus simple which improves the runnability of the press section and reduces the investment costs. This gives a short payback period for the smoothing press arrangement according to the invention. Also, the space needed for the press section is reduced.
  • the metal belt smoothing press has also effect on the strength properties of the end product. In practise, a minimum web stretch on the press section keeps the md/cd strength property ratio down. This kind of ratio is desirable for packaging board end uses. Also, both sides of the board have improved similarity.
  • the smoothing press also changes the surface properties of the web. Also, it is possible to adjust the temperatures of the sides of the paper or board in the smoothing press. Hence, it is easy to change the sidedness of the paper or board. When the web is already preheated in the smoothing press, higher initial cylinder temperature can be used in the drying section without fibre picking and dusting or linting problems.
  • the press section is intended for dewatering and/or processing paper of board webs.
  • the board can have one or more plies. Liquid packaging board and cup stock board are preferable end products. In spite of the end use, the board has no warpages or curlings and it has a good stiffness.
  • the heating means or heat carrying means or cleaning equipments includes one or more suitable device for heating, heat carrying or cleaning, respectively.
  • the boards are divided into a number of different types, depending on their intended end use.
  • Each application makes different demands on the properties of the board and each board type therefore implies certain characteristics, such as strength properties, internal bonding (Scott Bond (J/m 2 ), bending resistance index (Nm 6 /kg 3 ), taint/odour (hexanal value (ppb)); brightness (ISO) (%) and edge penetration.
  • the different board applications of this invention are therefore characterized by means of parameters, which correspond to their intended end use. The following methods and standards apply both to the definitions of the appended claims.
  • the edge penetration is a measure of hydrophobicity and sizability and is measured by an edge penetration test EWT (Edge Wick Test) according to the following method: board samples are conditioned at 23° C., 50% RH for 10 minutes. The samples are then cut to a specific size and the thickness of the samples is measured. The samples are then covered on both sides with a waterproof tape, the edges of the samples are thus uncovered, and the weight of the samples is measured.
  • the size of the samples is for example 25 ⁇ 75 mm.
  • the samples are put into a test solution (bath) for a certain period of time: lactic acid (concentration 1%, 1 hour), hydrogen peroxide (concentration 35%, 70° C., 10 minutes), cream coffee (1 l tap water, 9.5 g instant coffee, 17.5 g dry cream, 80° C., 10 minutes).
  • lactic acid concentration 1%, 1 hour
  • hydrogen peroxide concentration 35%, 70° C., 10 minutes
  • cream coffee (1 l tap water, 9.5 g instant coffee, 17.5 g dry cream, 80° C., 10 minutes.
  • the weight of the samples is measured after the samples have been in the bath.
  • the wick index is then calculated by the formula:
  • Hexanal is measured within one week from production of the board according a gas chromatography method, in which a sample is heated in a headspace (Perkin Elmer HS 40XL) to a temperature of 90° C. for 40 minutes, and the gas formed is conducted to the gas chromatograph (AutoSystem XL with a FID), where the components of the sample are separated. The amount of hexanal is measured in ppb ( ⁇ g/kg).
  • CD stretch to break SCAN-P 67.
  • the value of roughness is measured before the board is pre-calendered or calendered.
  • the roughness can either be measured on the web by open the calender and then measure the roughness or a sample can be cut out of the web and the roughness can then be measured on the sample.
  • the other parameters, such as Scott Bond, bending resistance, hexanal and EWT are measured on the finished board.
  • the board has an initial roughness Bendtsen value below 1000 ml/min, a Scott Bond of 120-350 J/m 2 , a bending resistance index of 8-25 Nm 6 /kg 3 , a hexanal value below 600 ppb when measured within one week from the board manufacture and an EWT (lactic acid) value below 2 kg/m 2 and/or an EWT (hydrogen peroxide) value below 2 kg/m 2 .
  • the board of this embodiment has high cleanliness, high strength and good hydrogen peroxide and/or lactic acid penetration values, all which is important for packages containing liquid. It fulfils the demands for use as a liquid packaging board, and is thus suitable for the manufacture of packages for holding liquids, such as milk or juice cartons.
  • the board has an initial roughness Bendtsen value below 1000 ml/min, a bending resistance index of at least 5 Nm 6 /kg 3 , a Scott Bond value of at least 160 J/m 2 , a CD (cross direction) stretch to break of at least 2.5%, preferably 3.5%, a hexanal value below 600 ppb when measured within one week from the board manufacture, preferably below 400 ppb, and an EWT (cream coffee) value below 1.8 kg 2 /m 2 .
  • This board grade has high formation, high cleanliness as well as a good CD stretch value, which fulfils the demands of cup stock board, and is thus suitable for use in the manufacture of cups for holding liquids, such as coffee or other beverages.
  • the board has an initial roughness Bendtsen value below 1000 ml/min, a Scott Bond value of at least 130 J/m 2 , a hexanal value below 1000 ppb when measured within one week from the board manufacture and a brightness (ISO-UV; measured with 420 nm filter) of at least 82% for the uncoated board.
  • the board of this embodiment has good strength and optical properties and fulfils the demands of a graphical paperboard, and is thus suitable for use as a graphical board and for packages holding for example pharmaceuticals or cosmetics.
  • the board has an initial roughness Bendtsen value below 1000 ml/min, a bending resistance index of at least 5 Nm 6 /kg 3 , a Scott Bond value of at least 130 J/m 2 , a CD stretch to break of at least 2.5%, preferably 3.5% and a hexanal value below 600 ppb when measured within one week from the board manufacture, preferably below 400 ppb.
  • the board of this embodiment has high cleanliness in combination with good strength and CD stretch, and fulfils the demands of food service board, which makes it suitable for use as food service board and in the manufacture of packages for foodstuff, especially packages in which the foodstuff comes into direct contact with the board.

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US12/746,790 2007-12-20 2008-12-10 Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement Abandoned US20100252215A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP07150199.3 2007-12-20
EP07150199A EP2072671B1 (de) 2007-12-20 2007-12-20 Anordnung für die Pressenpartie einer Maschine zur Herstellung einer Materialbahn und in einer solchen Anordnung hergestellter Karton oder Papier
PCT/FI2008/050724 WO2009080872A1 (en) 2007-12-20 2008-12-10 Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement

Related Parent Applications (1)

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PCT/FI2008/050724 A-371-Of-International WO2009080872A1 (en) 2007-12-20 2008-12-10 Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement

Related Child Applications (1)

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US13/624,402 Division US8480858B2 (en) 2007-12-20 2012-09-21 Board or paper produced in an arrangement in connection with the press section of a web-forming machine

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US20100252215A1 true US20100252215A1 (en) 2010-10-07

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US12/746,790 Abandoned US20100252215A1 (en) 2007-12-20 2008-12-10 Arrangement in connection with the press section of a web-forming machine and board or paper produced in such arrangement
US13/624,402 Expired - Fee Related US8480858B2 (en) 2007-12-20 2012-09-21 Board or paper produced in an arrangement in connection with the press section of a web-forming machine

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US (2) US20100252215A1 (de)
EP (1) EP2072671B1 (de)
CN (1) CN101903593B (de)
AT (1) ATE520820T1 (de)
BR (1) BRPI0821765B1 (de)
PL (1) PL2072671T3 (de)
WO (1) WO2009080872A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480858B2 (en) * 2007-12-20 2013-07-09 Stora Enso Oyj Board or paper produced in an arrangement in connection with the press section of a web-forming machine
JP2023507126A (ja) * 2019-12-19 2023-02-21 ストラ エンソ オーワイジェイ 段ボール用軽量ライナーボード

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011002847A1 (de) 2011-01-19 2012-07-19 Voith Patent Gmbh Trockenvorrichtung für eine Maschine zur Herstellung einer Materialbahn und Maschine mit einer derartigen Trockenvorrichtung
CN102794932B (zh) * 2012-07-23 2015-04-01 中迪纸材科技温州股份有限公司 高强瓦楞复合纸板生产设备
CN107208528B (zh) * 2015-02-06 2019-01-29 本田技研工业株式会社 内燃机的冷却控制装置
EP4134236A1 (de) * 2021-08-11 2023-02-15 Billerud Aktiebolag (publ) Asymmetrische pappe
SE545193C2 (en) * 2021-09-22 2023-05-09 Stora Enso Oyj A method for producing a film comprising microfibrillated cellulose

Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354035A (en) * 1966-11-08 1967-11-21 Albemarle Paper Co Continuous process of drying uncoated fibrous webs
US4596633A (en) * 1983-10-24 1986-06-24 The Black Clawson Company Surface treatment of paper and paperboard
US5255447A (en) * 1991-02-26 1993-10-26 Sulzer-Escher Wyss Gmbh Heat protection hood
US5308441A (en) * 1992-10-07 1994-05-03 Westvaco Corporation Paper sizing method and product
US5540885A (en) * 1992-01-07 1996-07-30 W.R. Grace & Co. - Conn. Sterilization process
US5694837A (en) * 1992-10-09 1997-12-09 Champion International Corporation Apparatus for finsihing a continuous sheet of paper
US6221212B1 (en) * 1997-07-07 2001-04-24 Stora Kopparbergs Bergslags Ab Cardboard having great reigidity
US6274001B1 (en) * 1997-10-21 2001-08-14 International Paper Company Method for calendering surface sized paper/paperboard to improve smoothness
US20020060005A1 (en) * 1998-09-22 2002-05-23 Mohan K. Krishna Method and apparatus for finishing paperboard to achieve improved smoothness and bulk
DE10116840A1 (de) * 2001-04-04 2002-10-17 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Glätten einer Materialbahn
US20040180184A1 (en) * 2002-03-18 2004-09-16 Mario Fillion Coated paper and process for producing same
US6878236B2 (en) * 1999-12-09 2005-04-12 Upm-Kymmene Corporation Raw material for printing paper, a method for producing said raw material and a printing paper
US6923889B2 (en) * 2001-05-23 2005-08-02 Upm-Kymmene Printing paper
US20050251977A1 (en) * 2002-01-29 2005-11-17 Juha Lipponen Processing device and method of operating the device for processing a coated or uncoated fibrous web
US20050251976A1 (en) * 2002-01-29 2005-11-17 Juha Lipponen Processing device and method of operating the device for processing a coated or uncoated fibrous web
US6994771B1 (en) * 1999-03-12 2006-02-07 Metso Paper, Inc. Method and apparatus for handling a paper or board web
US7000536B2 (en) * 2000-05-03 2006-02-21 Metso Paper, Inc. Belt calender
US20060060322A1 (en) * 2002-01-29 2006-03-23 Mika Viljanmaa Processing device for processing a coated or uncoated fibrous web
WO2006084883A1 (en) * 2005-02-10 2006-08-17 Stora Enso Ab High quality paperboard and products made thereof
US7943010B2 (en) * 2004-11-30 2011-05-17 Metso Paper, Inc. Method of making surface-sized paper/board

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5679799A (en) * 1979-11-05 1981-06-30 Beloit Corp Squeezing apparatus for dehydrating running fiber web
FI64823C (fi) * 1982-11-02 1984-01-10 Valmet Oy Oeverfoeringsanordning foer ledande av pappersbanan fraon presspartiet i en pappersmaskin till dess torkparti
US4738752A (en) * 1986-08-12 1988-04-19 Beloit Corporation Heated extended nip press apparatus
US5665206A (en) * 1991-01-18 1997-09-09 Valmet Corporation Method and device in a press section of a paper machine for detaching a web from a face of a press roll
US5131983A (en) * 1991-08-06 1992-07-21 Beloit Corporation Heated press apparatus with elastomeric covered roll(s)
DE4301750C2 (de) * 1993-01-23 1996-10-10 Voith Gmbh J M Verfahren und Vorrichtung zum Entwässern einer Bahn mittels Pressen
FI950376A7 (fi) * 1993-05-29 1995-01-27 Voith Gmbh J M Puristin ohuita papereita varten olevaan paperikoneeseen
FI95610C (fi) * 1994-10-06 1996-02-26 Valmet Paper Machinery Inc Tasauspuristimella varustettu paperikoneen puristinosa
DE19636627A1 (de) 1996-09-10 1998-03-12 Voith Sulzer Papiermasch Gmbh Glättvorrichtung und Verfahren zur Glättung einer Papierbahn
DE19642046A1 (de) * 1996-10-11 1998-04-16 Voith Sulzer Papiermasch Gmbh Pressenpartie
FI102305B1 (fi) * 1997-04-02 1998-11-13 Valmet Corp Kalanterointimenetelmä ja menetelmää soveltava kalanteri
US6332953B1 (en) * 1998-10-02 2001-12-25 International Paper Company Paper product having enhanced printing properties and related method of manufacture
DE10157723B4 (de) * 2001-11-24 2005-12-22 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Glätten einer Papier- oder Kartonbahn
DE10157687B4 (de) * 2001-11-24 2005-11-17 Voith Paper Patent Gmbh Kalander und Verfahren zum Glätten einer Papier- oder Kartonbahn
FI116400B (fi) * 2002-11-19 2005-11-15 Metso Paper Inc Paperi- tai kartonkikoneen puristinosa
JP3978211B2 (ja) * 2003-05-13 2007-09-19 三菱重工業株式会社 抄紙機のスムージングプレス及びスムージングプレス付き抄紙機用プレス
DE102005021106A1 (de) * 2005-05-06 2006-11-09 Voith Patent Gmbh Glättanordnung
JP2007009389A (ja) * 2005-05-31 2007-01-18 Ichikawa Co Ltd スムージングプレス装置
FI20065447A7 (fi) 2006-06-28 2007-12-29 Metso Paper Inc Paperi- tai kartonkikoneen puristinosa
FI120002B (fi) * 2006-07-24 2009-05-29 Metso Paper Inc Menetelmä ja sovitelma paperi- tai kartonkikoneen puristinosan yhteydessä
EP2072671B1 (de) * 2007-12-20 2011-08-17 Stora Enso Oyj Anordnung für die Pressenpartie einer Maschine zur Herstellung einer Materialbahn und in einer solchen Anordnung hergestellter Karton oder Papier
ATE518989T1 (de) * 2007-12-20 2011-08-15 Metso Paper Inc Anordnung für die pressenpartie einer maschine zur herstellung einer materialbahn

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3354035A (en) * 1966-11-08 1967-11-21 Albemarle Paper Co Continuous process of drying uncoated fibrous webs
US4596633A (en) * 1983-10-24 1986-06-24 The Black Clawson Company Surface treatment of paper and paperboard
US5255447A (en) * 1991-02-26 1993-10-26 Sulzer-Escher Wyss Gmbh Heat protection hood
US5540885A (en) * 1992-01-07 1996-07-30 W.R. Grace & Co. - Conn. Sterilization process
US5308441A (en) * 1992-10-07 1994-05-03 Westvaco Corporation Paper sizing method and product
US5694837A (en) * 1992-10-09 1997-12-09 Champion International Corporation Apparatus for finsihing a continuous sheet of paper
US6221212B1 (en) * 1997-07-07 2001-04-24 Stora Kopparbergs Bergslags Ab Cardboard having great reigidity
US6274001B1 (en) * 1997-10-21 2001-08-14 International Paper Company Method for calendering surface sized paper/paperboard to improve smoothness
US20020060005A1 (en) * 1998-09-22 2002-05-23 Mohan K. Krishna Method and apparatus for finishing paperboard to achieve improved smoothness and bulk
US6497790B2 (en) * 1998-09-22 2002-12-24 International Paper Company Paperboard of improved smoothness and bulk
US6994771B1 (en) * 1999-03-12 2006-02-07 Metso Paper, Inc. Method and apparatus for handling a paper or board web
US6878236B2 (en) * 1999-12-09 2005-04-12 Upm-Kymmene Corporation Raw material for printing paper, a method for producing said raw material and a printing paper
US7000536B2 (en) * 2000-05-03 2006-02-21 Metso Paper, Inc. Belt calender
DE10116840A1 (de) * 2001-04-04 2002-10-17 Voith Paper Patent Gmbh Verfahren und Vorrichtung zum Glätten einer Materialbahn
US6923889B2 (en) * 2001-05-23 2005-08-02 Upm-Kymmene Printing paper
US20050251977A1 (en) * 2002-01-29 2005-11-17 Juha Lipponen Processing device and method of operating the device for processing a coated or uncoated fibrous web
US20050251976A1 (en) * 2002-01-29 2005-11-17 Juha Lipponen Processing device and method of operating the device for processing a coated or uncoated fibrous web
US20060060322A1 (en) * 2002-01-29 2006-03-23 Mika Viljanmaa Processing device for processing a coated or uncoated fibrous web
US7704351B2 (en) * 2002-01-29 2010-04-27 Metso Paper, Inc. Processing device and method of operating the device for processing a coated or uncoated fibrous web
US20040180184A1 (en) * 2002-03-18 2004-09-16 Mario Fillion Coated paper and process for producing same
US7943010B2 (en) * 2004-11-30 2011-05-17 Metso Paper, Inc. Method of making surface-sized paper/board
WO2006084883A1 (en) * 2005-02-10 2006-08-17 Stora Enso Ab High quality paperboard and products made thereof
US20080314536A1 (en) * 2005-02-10 2008-12-25 Frank Peng High Quality Paperboard and Products Made Thereof
US7897011B2 (en) * 2005-02-10 2011-03-01 Stora Enso Ab High quality paperboard and products made thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8480858B2 (en) * 2007-12-20 2013-07-09 Stora Enso Oyj Board or paper produced in an arrangement in connection with the press section of a web-forming machine
JP2023507126A (ja) * 2019-12-19 2023-02-21 ストラ エンソ オーワイジェイ 段ボール用軽量ライナーボード
US12234605B2 (en) 2019-12-19 2025-02-25 Stora Enso Oyj Light weight linerboard for corrugated board
JP7660573B2 (ja) 2019-12-19 2025-04-11 ストラ エンソ オーワイジェイ 段ボール用軽量ライナーボード

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CN101903593A (zh) 2010-12-01
US8480858B2 (en) 2013-07-09
CN101903593B (zh) 2013-10-09
US20130020044A1 (en) 2013-01-24
BRPI0821765A2 (pt) 2016-10-11
PL2072671T3 (pl) 2012-07-31
BRPI0821765B1 (pt) 2018-09-25
ATE520820T1 (de) 2011-09-15
EP2072671A1 (de) 2009-06-24
EP2072671B1 (de) 2011-08-17

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