Solid Means Acting On Formed Web Patents (Class 162/361)
  • Publication number: 20040173332
    Abstract: Water draining device for a paper machine or the like, in particular for a felted press of such a paper machine, including a receiving tank extending at least essentially over the machine width. The receiving tank includes a first chamber that receives arriving water and is under ambient pressure, and a second chamber that is connected to the first chamber and is under vacuum, into which the water collecting in the first chamber is aspirated and from which the water is eventually drained. A water receiving device of improved efficiency is also provided by forming a water receiving device by at least one suction channel projecting into the wedge-shaped area between the upper press roll and the dewatering belt, and extending transverse to the pulp web, which suction channel is connected to a source of reduced pressure.
    Type: Application
    Filed: September 24, 2003
    Publication date: September 9, 2004
    Applicant: Voith Paper Patent GmbH
    Inventors: Karl Steiner, Robert Wolf, Hans Prinzing, Gerhard Kotitschke, Jurgen Banning
  • Patent number: 6780287
    Abstract: A relatively low-cost calendering belt having excellent heat resistance and durability comprises a central portion 30, and left and right side portions 20 located at the sides of the central portion. The right and left portions 20 comprise high molecular weight elastic material having greater heat resistance than that of the central portion 30. The central portion 30 is composed of high-molecular elastic material, the durability of which is higher than that of the right and left portions 20. The heat of the calender roll CR is intercepted by a paper W, and consequently is not transmitted to the central portion 30 of the calender belt. The right and left portions 20 of the calender belt, which are not protected by paper W do not deteriorate readily as a result of the heat of the calender roll CR because of their heat resisting property.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: August 24, 2004
    Assignee: Ichikawa Co., Ltd.
    Inventors: Norio Sakuma, Yasuhiro Tsutsumi, Kazumasa Watanabe
  • Patent number: 6773548
    Abstract: The invention concerns a paper comprising a damask embossed pattern (23) on at least one of its surfaces, said pattern (23) being produce by the combination of at least a base (24) and at least an inlaid zone (25), the base in the inlaid zone having differently oriented and shaped wools. The invention further concerns a method for making said paper and cloth for implementing the method. The invention is particularly applicable to printing and/or writing paper.
    Type: Grant
    Filed: July 31, 2000
    Date of Patent: August 10, 2004
    Assignee: Thibierge et Comar
    Inventors: Emeric Thibierge, Jean-Francois Loeillot
  • Publication number: 20040144515
    Abstract: Nip press belt (9) of a wet press (1) or a calender with elongated nip, in particular for a paper, cardboard or tissue machine, with a flexible carrier layer (9a) that is impermeable to liquids and is made of soft rubber having a hardness in the range between 20 and 50 P+J and an integrated textile reinforcement (9b), and with a covering layer (9c) that is fixedly connected to the carrier layer or formed together therewith.
    Type: Application
    Filed: October 29, 2003
    Publication date: July 29, 2004
    Inventor: Franz Danzler
  • Patent number: 6733632
    Abstract: A process and an apparatus for the manufacture of SC-A paper having a high gloss and high smoothness, wherein the paper arriving from the paper machine is supplied on-line to a supercalender (multinip soft calendar), and wherein the paper travels through a plurality of nips for achieving the desired gloss and smoothness properties. The paper web arriving from the paper machine and supplied on-line to a supercalender (multinip soft calendar) is moistened with steam immediately prior to the first nip of the supercalender and is guided through the first nip before the increased moisture of the surface resulting from the application of steam has dropped below a predetermined value in the range of 12% to 25%.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: May 11, 2004
    Assignee: V. I. B. Systems GmbH
    Inventors: Stefan Winheim, Rudolf Mann, Manfred Diebel
  • Publication number: 20040079508
    Abstract: The invention relates to an arrangement for profiling a fibre web (W) with a shoe roll (10). The shoe roll (10) has an opposite counter-roll (3), with a roll nip (4) between the shoe roll and the counter-roll. The shoe roll (10) has a static roll fram (5), a shoe element (2) located at the roll nip (4) and an endless belt (6) rotating about the shoe element (2) and the static roll frame (5). A lubricating cycle (71) is provided between the endless belt (6) and the shoe element (2) in the roll nip. As the fibre web (W) passes through the roll nip, its surface is profiled by loading the loading element (8). Before or after the shoe element (2), the shoe roll (10) has a profiling strip (1) extending substantially from one end to the other of the other of the shoe roll in the longitudinal axis direction of this. The profiling strip (1) can be pressurised so as to be able to perform thickness profiling of the surface of the fibre web (W).
    Type: Application
    Filed: September 17, 2003
    Publication date: April 29, 2004
    Inventors: Risto Turunen, Stefan Kuni
  • Patent number: 6726810
    Abstract: A paper web is smoothened by passing the web through a pre-calender device on a paper machine before the application of a coating. The pre-calender device comprises at least one pair of steel rolls, one of which is heated, and a liquid application device which applies a thin film of water to the surface of the web which contacts the heated roll before the web enters the nip between the rolls. The web is then dried after exiting the nip either by wrapping the heated roll and/or by applying heat externally to the web.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: April 27, 2004
    Assignee: MeadWestvaco Corporation
    Inventor: Donald G. Bauer
  • Publication number: 20040074619
    Abstract: A dry end of a tissue machine is made shorter by close-coupling a reel-up to the drying section and supporting the web from the drying section to the reel-up by a foil or a belt such that web stability is maintained, thus allowing high-speed operation. The foil's downstream edge can form a nip with the paper roll and nip load can be controlled by controlling pivotal movement of the foil. The reel-up can include a calendering belt for calendering the web as it passes through a nip between the belt and a reel drum supported on the belt, and a rotatable reel spool on which a paper roll is wound in nipping engagement with the reel drum. Alternatively, the reel drum can be eliminated and the paper roll can be supported on the belt. A composite shaftless core for winding is also disclosed.
    Type: Application
    Filed: October 10, 2003
    Publication date: April 22, 2004
    Applicant: Metso Paper Karstad AB
    Inventor: Anders Tommy Linden
  • Publication number: 20040069433
    Abstract: A long nip press for machines transporting fibre webs, which press drains water from the fibre web and comprises two hydrostatic bearings opposite each other, both comprising a pressure shoe comprising a pressure chamber, the pressure shoe having a sealing element in the form of a flexible pressure-balancing diaphragm, and a press belt to press the fibre web against a fabric, the pressure-balancing diaphragm protruding on its edge-zone without support from the inner rim of the pressure shoe towards the pressure chamber. So as to make the long nip press very simple in structure and to enable self-adjusting, even and efficient lubrication in the nip, the protruding edge-zones comprise pinholes for transporting hydraulic fluid. The invention also relates to a pressure-balancing diaphragm.
    Type: Application
    Filed: November 6, 2003
    Publication date: April 15, 2004
    Inventor: Teuvo Rajamaki
  • Patent number: 6708608
    Abstract: The invention relates to a calender intended to calender a paper or board web (4), which calander comprising a calendering section, in which there are at least two members, such as rolls (1, 2, 3), in nip contact, between which the web (4) being calendered is arranged to run. For reducing the moisture and heat leaving the web (4) while it is being calendered a wall (16, 17), covering at least part of the calendering section, is formed from the web (4) being calendered by changing its direction of travel.
    Type: Grant
    Filed: July 23, 2002
    Date of Patent: March 23, 2004
    Assignee: Metso Paper, Inc.
    Inventor: Mika Viljanmaa
  • Publication number: 20040050516
    Abstract: The invention relates to a method for passing a web (W) in connection with a finishing device of a paper or board machine, in which method the web (W) is passed from a preceding treatment stage to the finishing device in which the web (W) is finished in the finishing device and from which finishing device the web (W) is pased further to a subsequent treatment stage. The web (W) is brought to a roll (11; 14) of the finishing device as supported substantially before a nip area (N1; N2). The web (W) is passed from the circumference of a roll (12; 15) of the finishing device as substantially supported after the nip area (N1; N2). The invention also relates to a device for passing a web in connection with a finishing device of a paper machine.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 18, 2004
    Inventor: Pekka Koivukunnas
  • Publication number: 20040050517
    Abstract: The invention relates to a method in a paper or board machine, in which method water is removed from a paper or board web (W) by pressing in a press section (30), in which pressing stage the web (W) is pressed in at least one press nip (35; 36), and in which method the web (W) is dried after pressing by impingement drying, in which method the web (W) is passed as a closed draw from the press section (30) to a dryer section (40), and the method applies full-width threading from the press section (30) to the dryer section (40). The web (W) is dried by impingement drying by means of impingement units (46) placed around at least one large-diameter impingement roll (45). In the method, the web (W) is passed after impingement drying as a closed draw through the dryer section (40) to a calender (60), and in the method threading is accomplished as of full width through the dryer section (40).
    Type: Application
    Filed: September 25, 2003
    Publication date: March 18, 2004
    Inventors: Kari Juppi, Antti Komulainen
  • Patent number: 6702928
    Abstract: The invention relates to a press roll (1) comprising a flexible rotating endless-loop blanket (3) of a liquid-impervious material, two disc-shaped roll heads (4, 5), and a clamp element (14) filled with a pressurized medium for clamping the lateral rims (21) of the blanket (3) to the respective ones (4, 5) of the roll heads. The invention is implemented by adapting between the pressurized-medium-filled clamp element (14) and the blanket (3) an annular ring (18) serving to press the rim of the blanket (3) during the pressurization of said clamp element against the inner rim surface (15) of a sector plate (7) and, respectively, serving to contract the clamp element (14) when the pressure of the clamp element (14) is removed or lowered.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: March 9, 2004
    Assignee: Vaahto Oy
    Inventor: Erkki Aho
  • Patent number: 6699362
    Abstract: Fine paper is manufactured in a paper machine by feeding stock into a headbox (100) from a short circulation the stock volume of which has been minimized, water is removed from the paper web (W) most advantageously in a gap former (250), in the press section (300) water is pressed out of the paper web (W) in an extended nip press (360), in the dryer section (400) impingement drying (450) is employed for the drying of the paper web (W), the paper web (W) is pre-calendered in a calender (900) employing low nip loads, both surfaces of the paper web (W) are precoated at the same time, after precoating (500) the paper web (W) is dried by means of contact-free drying (660), the paper web (W) is coated in an on-line coating station/stations (700, 800), after which the paper web (W) is at least partly dried in a drying section/sections (750, 850) by means of contact-free drying of the paper web (W), and the paper web (W) is calendered in an on-line calender (900) while the linear load in each nip is regulated separat
    Type: Grant
    Filed: April 15, 2002
    Date of Patent: March 2, 2004
    Assignee: Metso Paper, Inc.
    Inventor: Pentti Rautiainen
  • Publication number: 20040020618
    Abstract: In the method for precalendering a paper or paperboard web (W) a web that has undergone earlier dewatering stages is calendered to attain a suitable surface for the coating process. The web is calendered (C) one-sidedly in such a manner that the absorption level of the second side (W2) of the web entering the calendering, which is higher than the absorption level of the first side (W1), is reduced in the calendering nearly to the same level or at least to the same level with the first side (W1).
    Type: Application
    Filed: June 30, 2003
    Publication date: February 5, 2004
    Inventors: Johan Gron, Kari Sipi
  • Publication number: 20040020619
    Abstract: There is described a method and apparatus for applying steam from a steam source to a moving web to thereby improve the smoothness and gloss of the web. A housing has at least one cooling chamber upstream and at least one steam chamber downstream. The cooling air in the cooling chamber is used to cool the web before steam is applied to the web from the steam chamber. This allows a sufficient volume of steam to be delivered to the web to thereby raise its moisture content to a desired level to thus achieve optimized calendering of the web.
    Type: Application
    Filed: July 30, 2002
    Publication date: February 5, 2004
    Applicant: ABB, Inc.
    Inventor: Robert G. Hamel
  • Patent number: 6676807
    Abstract: A process for increasing the tactile properties of a base web without adversely affecting the strength of the web is disclosed. In general, the process includes the steps of placing a base web in between a first moving conveyor and a second moving conveyor. The conveyors are then wrapped around a shear inducing roll which creates shear forces that act upon the base web. The shear inducing roll typically has a relatively small diameter. In some applications, more than one shear inducing roll may be incorporated into the system. In other applications, the shear inducing roll can also be a nip roll for decreasing the caliper of the base web. The shear inducing roll may be stationary, as in the form of a stationary shoe with a convex edge, or may rotate. In one embodiment, the shear inducing roll can rotate on an air bearing.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: January 13, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank S. Hada, Keith D. Glass, Ronald F. Gropp, Patricia Riedl, Douglas C. Thomas
  • Patent number: 6669821
    Abstract: The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed. The void volume further increases water removal and/or improves line speed.
    Type: Grant
    Filed: November 14, 2001
    Date of Patent: December 30, 2003
    Assignee: Fort James Corporation
    Inventors: Steven L. Edwards, Robert J. Marinack, Jeffrey Charles McDowell, Gary L. Worry
  • Publication number: 20030221807
    Abstract: A creped tissue paper is made by creping a tissue paper from a drying cylinder with a creping doctor, receiving the creped web on a carrying fabric, carrying the creped web on the carrying fabric through a compression nip that compresses the web to substantially reduce its thickness and improve softness of the web, and carrying the creped, compressed web on the carrying fabric or a subsequent fabric to a reel-up.
    Type: Application
    Filed: February 26, 2003
    Publication date: December 4, 2003
    Applicant: Metso Paper Karlstad AB
    Inventors: Ingvar Berndt Erik Klerelid, Johan Ulf Ragard
  • Patent number: 6638395
    Abstract: Machine and process for at least one of producing and finishing a fibrous material web. The machine includes a press section, for dewatering the fibrous web, with a press nip, a former, located before, relative to a web travel direction, the press section for sheet formation, and a dryer section, located after the press section for drying the fibrous material web including a first dryer section having no more than three dryer cylinders. Two press rolls are arranged to form the press nip, and at least one press felt is located on each surface of the material web, such that the material web and the at least one press felt on each side of the material web are guided through the press nip. The fibrous material web is dewatered in the former to a dry content of at least approximately 18%, partially loops around the no more than three dryer cylinders, and is constantly supported from the former to an end of the first dryer group.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: October 28, 2003
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Thomas Elenz
  • Publication number: 20030183359
    Abstract: Press shoe of a shoe press unit and a machine including press shoe. The press shoe includes at least two lateral edge areas, which are structured and arranged to be positioned adjacent web edges, and a central area lying between the at least two lateral edge areas. At least in some sections of the at least two lateral edge areas are structured to have a lower bending stiffness than in the central area. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: March 26, 2003
    Publication date: October 2, 2003
    Applicant: VOITH PAPER PATENT GMBH
    Inventor: Thomas Thoroe Scherb
  • Publication number: 20030168193
    Abstract: Machine and process for the production of a tissue web that includes a drying cylinder and a press shoe arrangement. The press shoe arrangement and the drying cylinder are arranged to form a nip with lateral edge areas. A plurality of contact pressing elements are arranged to exert pressing pressures across the nip, a measuring device is structured and arranged to measure pressing pressures resulting in at least the lateral edge areas, and at least one of a control and regulating device is structured and arranged to locally adjust the pressing pressures in the lateral edge areas by adjusting pressing pressures exerted by contact pressing elements assigned to the lateral edge areas. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 11, 2003
    Applicant: Voith Paper Patent GmbH
    Inventor: Thomas Thoroe Scherb
  • Publication number: 20030168196
    Abstract: In laminated, resin-impregnated doctor blades for removing water from a grooved belt in the press part of a papermaking machine, fibers of the belt-contacting layer are oriented in the direction of travel of the belt. The doctor blade so constructed exhibits greater adhesion to the belt, an improved water-removal capability, and greater durability, when compared with a doctor blade having randomly oriented surface fibers.
    Type: Application
    Filed: March 6, 2003
    Publication date: September 11, 2003
    Inventors: Tetsuo Takeuchi, Hirofumi Ishii
  • Publication number: 20030168195
    Abstract: A shoe press for a papermaking machine having clamping means mounted onto the head from the end thereof remote from the blanket. In one embodiment, the head itself is provided with a wedge surface in engagement with respective inclined surfaces of wedge segments and the blanket extends between these wedge segments and opposing surfaces provided on the clamping means. Axial displacement of the clamping means relative to the head, e.g. by tightening or releasing of bolts, then causes the blanket to be clamped between the wedge segments and the clamping means or to be released and removable therefrom. In another embodiment, it is the clamping means which is provided with wedge surfaces in engagement with respective inclined surfaces of wedge segments, and the blanket then extends between the wedge segments, and an opposing flat surface on the head. However, in other respects axial displacement of the clamping means brings about clamping or release of the blanket edge in the same manner.
    Type: Application
    Filed: September 23, 2002
    Publication date: September 11, 2003
    Applicant: Sandusky Walmsley Limited
    Inventor: Mark Antony Porter
  • Patent number: 6605189
    Abstract: Suction box in a paper machine including a vacuum chamber, a deck or a number of substantially U-section holders open toward a wire and ribs arranged in the deck or the holders so that they can be loaded against the wire. At least in a running situation, the deck of the suction box is curved or the ribs are arranged to provide a curve run of the wire so that the wire tension of the curved run over the deck or ribs serves to lower a normal force which is produced by the vacuum present in the suction box and which is effective between the wire and the deck or ribs.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 12, 2003
    Assignee: Metso Paper, Inc.
    Inventors: Jorma Snellman, Antti Poikolainen, Ari Puurtinen, Samppa Salminen
  • Publication number: 20030145971
    Abstract: In a shoe press apparatus of a papermaking machine, a press part comprises a roll which serves as a pressing member and a shoe. A belt is sandwiched between the roll and the shoe. A lubricant feeder supplies a lubricant from the outside of the shoe at the upstream side of the shoe. A lubricant holding section, comprising a plurality of grooves is provided on the upstream end of the shoe. Lubricant supplied from the lubricant feeder is held in the lubricant holding section of the shoe, and is more reliably supplied to the press part as the belt runs through the press part. The Structure of the lubricant holding section is comparatively simple, and the lubricant holding section decreases friction, thereby saving energy.
    Type: Application
    Filed: January 29, 2003
    Publication date: August 7, 2003
    Inventor: Kazumasa Watanabe
  • Patent number: 6599396
    Abstract: There is disclosed a roller (10) for a texturing press on a papermaking machine adapted to be fitted with an interchangeable engraved sleeve (12) and comprising a cylindrical shell (20, 21) having a plurality of axially and circumferentially spaced apertures (23) in its peripheral surface through which pressure fluid may be ejected and at least one axially extending channel (22) within the thickness of the shell for the supply of pressure fluid to the apertures.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: July 29, 2003
    Assignee: Arjo Wiggins Fine Papers Limited
    Inventors: Angus MacSween, Austin Clark, Michael McCormick, David Lees
  • Publication number: 20030121626
    Abstract: A soft crepe paper machine comprises a wet section with a press section having a press defined by first and second press, elements forming a press nip through which a press felt runs with a paper web. A suction roll is arranged in the loop of the press felt before the press nip at a distance from the second press element, and the felt with the web thereon runs around the suction roll with a large wrap angle. A drying cylinder forms the second press element. The first press element is either a solid press roll, a suction press roll, or a variable crown press roll.
    Type: Application
    Filed: November 18, 2002
    Publication date: July 3, 2003
    Applicant: Metso Paper Karlstad AB
    Inventor: Magnus Hultzcrantz
  • Patent number: 6585861
    Abstract: Device for producing a paper having a three dimensional pattern which has been given the paper web in connection with drying the paper web. The device comprises at least one press nip (12) comprising a rotatable heated roll (13) and a counter means (11,14), at which either the heated roll (13) along its periphery alternatively a member surrounding the roll or a patterned wire, band or belt is provided with said three dimensional pattern, and wherein the wet paper web (10) is intended to pass through said press nip (12) and is given said pattern A detaching roll (16) is arranged at a certain distance from the press nip (12) for taking off the paper web from the heated roll (13), and creping means (17) are arranged for creping the paper from said detaching roll (16).
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: July 1, 2003
    Assignee: Metso Paper Karlstad AB
    Inventors: Janerik Odhe, Bengt Järrehult, Holger Hollmark, Lennart Reiner, Thomas Billgren, Ingvar Klerelid
  • Publication number: 20030094256
    Abstract: Shoe roll for dewatering or calendering a moving fibrous web. The shoe roll includes a flexible, replaceable press cover having two end regions and at least one end supporting disc. At least one of the two end regions have reinforcing inlays and are releasably coupled to the at least one end supporting disc. A quick-acting closure, located between an inner wall of the at least one end region and the at least one end supporting disc, includes a radially pressing element structured to exert a pressing force and to simultaneously seal an interior of the shoe roll from an external environment. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 22, 2003
    Applicant: Voith Paper Patent GmbH
    Inventor: Helmut Heinzmann
  • Publication number: 20030085014
    Abstract: A process for increasing the tactile properties of a base web without adversely affecting the strength of the web is disclosed. In general, the process includes the steps of placing a base web in between a first moving conveyor and a second moving conveyor. The conveyors are then wrapped around a shear inducing roll which creates shear forces that act upon the base web. The shear inducing roll typically has a relatively small diameter. In some applications, more than one shear inducing roll may be incorporated into the system. In other applications, the shear inducing roll can also be a nip roll for decreasing the caliper of the base web. The shear inducing roll may be stationary, as in the form of a stationary shoe with a convex edge, or may rotate. In one embodiment, the shear inducing roll can rotate on an air bearing.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 8, 2003
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank S. Hada, Keith D. Glass, Ronald F. Gropp, Patricia Riedl, Douglas C. Thomas
  • Publication number: 20030079849
    Abstract: A shoe roll (1) of a shoe press is disclosed for use in a paper-making machine, the shoe roll comprising a blanket, or an endless belt, which houses a shoe assembly that in cooperation with an external backing roll forms an extended nip proper and the shoe press including an oil circulation piping system (10, 11) performing the removal of oil from the interior of the shoe roll (1) to an oil trap during the running of the machine, whereby the piping system also comprises a suction fan connected thereto. The invention is implemented by way of connecting to the oil circulation piping (10, 11) an oil siphon (9) adapted movable along the blanket in the interior of the shoe roll (1) so that the excess oil can be removed by means of the siphon during the time the roll is stopped from the interior of the blanket by a pressure differential generated by of the suction fan.
    Type: Application
    Filed: October 16, 2002
    Publication date: May 1, 2003
    Inventor: Erkki Aho
  • Patent number: 6554964
    Abstract: A shoe press comprises a shoe support device mounted downstream of the press shoe of the shoe press to carry forces acting on the press shoe and having a first support element that has a support surface facing the press shoe and is fixedly connected to a stationary stand of the shoe press, and a second support element in the form of at least one rolling body arranged in a space between the support surface of the first support element and an opposite support surface of the press shoe to be in contact with the two support surfaces during operation. The rolling body is arranged to roll along the two support surfaces when the press shoe is moved relative to a second support element in the shoe press, while rotating about an axis of rotation that moves in relation to and in the same direction as the press shoe.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: April 29, 2003
    Assignee: Metso Paper Karlstad AB
    Inventor: Erik Brox
  • Patent number: 6547924
    Abstract: A paper machine for manufacturing textured soft paper comprises a press section with a press nip, through which an impermeable belt and a felt run with the fibrous web between them, a drying cylinder and a transfer roll forming a nip for transfer of the web to the drying cylinder. According to the invention the belt is a texturing belt having a back layer and a web-contacting layer having depressions with surface portions situated between them to form a relief pattern in the web upon passage through the press nip, the texturing belt running from the press to the drying cylinder in order to carry the textured web to the transfer nip. The felt runs away from the texturing belt before a water film formed in the press nip on the texturing belt breaks up. A device is provided before the transfer nip to apply adhesive on the drying cylinder.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: April 15, 2003
    Assignee: Metso Paper Karlstad AB
    Inventors: Ingvar B.E. Klerelid, Anders T. Lindén, Robert S. Ampulski, Ward W. Ostendorf, Osman Polat
  • Publication number: 20030062141
    Abstract: A paper or cardboard machine press section includes sequentially arranged first, second, and third presses each having opposed first and second press members forming a press nip therebetween. A press felt is arranged in a loop and passes through the press nip of the third press. An impermeable transfer belt is arranged in a loop to receive the web from the second press and transfer it to the press felt of the third press. A wet calender defining at least one roll nip is provided between the second and third presses, and the web and the transfer belt pass through the roll nip of the wet calender. In a preferred embodiment, the roll nip of the calender is formed by a smooth press roll of the second press arranged outside the loop of the transfer belt, and a guide roll that is arranged within the loop of the transfer belt.
    Type: Application
    Filed: September 12, 2002
    Publication date: April 3, 2003
    Inventor: Per Anders Artur Leandersson
  • Patent number: 6524445
    Abstract: An apparatus for calendering a sheet material web being carried on or between one or more carrier fabrics. In a preferred embodiment, the apparatus includes a calender section having first and second calender rolls forming a nip therebetween. At least one carrier fabric is disposed between the first and second calender rolls. The first and second calender rolls apply a load to the carrier fabric and sheet material web as they pass through the nip between the calender rolls so as to reduce the caliper, or thickness, of the sheet material web. A method for calendering the sheet material web includes carrying the sheet material web on one or more carrier fabrics through the calender nip formed by the first and second calender rolls and applying a load to the carrier fabric, and sheet material carried thereby, so as to reduce the thickness of the sheet material web.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: February 25, 2003
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Kurt T. Otto, James M. Perkins
  • Patent number: 6517683
    Abstract: The invention relates to a press in a machine for the production or treatment of a continuously running web of cellulosic fibrous material, for instance a paper, tissue or board machine. The press includes a press device and a counter element arranged opposite the press device, which is arranged to form a press zone in the form of an extended press nip in cooperation with the press device having a certain width in the machine direction for pressing the fibrous web as it runs through the press nip.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: February 11, 2003
    Assignee: Metso Paper Karlstad AB
    Inventor: Erik Brox
  • Publication number: 20030010464
    Abstract: A shoe press comprises a shoe support device mounted downstream of the press shoe of the shoe press to carry forces acting on the press shoe and having a first support element that has a support surface facing the press shoe and is fixedly connected to a stationary stand of the shoe press, and a second support element in the form of at least one rolling body arranged in a space between the support surface of the first support element and an opposite support surface of the press shoe to be in contact with the two support surfaces during operation. The rolling body is arranged to roll along the two support surfaces when the press shoe is moved relative to a second support element in the shoe press, while rotating about an axis of rotation that moves in relation to and in the same direction as the press shoe.
    Type: Application
    Filed: September 12, 2002
    Publication date: January 16, 2003
    Applicant: Metso Paper Karlstad AB
    Inventor: Erik Brox
  • Publication number: 20030010461
    Abstract: The invention relates to a calender intended to calender a paper or board web (4), which calander comprising a calendering section, in which there are at least two members, such as rolls (1, 2, 3), in nip contact, between which the web (4) being calendered is arranged to run. For reducing the moisture and heat leaving the web (4) while it is being calendered a wall (16, 17), covering at least part of the calendering section, is formed from the web (4) being calendered by changing its direction of travel.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 16, 2003
    Inventor: Mika Viljanmaa
  • Patent number: 6497793
    Abstract: Apparatus and method for grinding levelling of paper, cardboard or a similar continuous web manufactured from vegetative based fibrous raw-material, said apparatus comprising a plurality of grinding means such as rolls or belts preferably arranged on both sides of the web, said means being deviated from the moving direction of the web or the web being deviated from these by means of squeeze rolls and which rolls are characterised by being trioelectrically charged with a similar electrical charge as the ground surface. The web tension can be regulated by moving the grinding means or the web from its direction of movement and the dust generated at the grinding is removed by a vacuum system.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: December 24, 2002
    Assignee: IDI Head Oy
    Inventors: Heikki Ahonen, Bernhard Dettling
  • Publication number: 20020179264
    Abstract: An apparatus and process for removing water from a cellulosic web. The papermaking apparatus comprises imprinting member having an absolute void volume that enables a hydraulic connection to be formed between a cellulosic web and a capillary dewatering member when compressed in a nip. The absolute void volume is predetermined based on an estimate of the volume of water expressed from the cellulosic web.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 5, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Dean Van Phan, Paul Dennis Trokhan, Peter Graves Ayers
  • Publication number: 20020179271
    Abstract: A composite composition to be used in a doctor blade construction, said composite laminate construction comprising: (a) one or more central layers comprising an engineering thermoplastic resin filled with heat-resistant, non-glass, long strand fibers; (b) one or more intermediate layers positioned over the one or more central layers, each said intermediate layer comprising a carbon layer; and (c) one or more surface sheets positioned over the one or more intermediate layers.
    Type: Application
    Filed: May 17, 2001
    Publication date: December 5, 2002
    Applicant: Lingol Corporation
    Inventor: Peter Lindenfelser
  • Patent number: 6488816
    Abstract: A drying section for drying a web in a papermaking machine has a pre-drying section and a final drying section, wherein the pre-drying section includes a hot press formed by a first press member and a rotatable counter roll in engagement with each other so as to form a nip therebetween through which the web passes. The hot press further includes a heating device disposed in heat-transfer relation to the counter roll and operable to heat a surface region of the counter roll which then passes through the nip so as to heat the web therein, and an imprinting fabric arranged in an endless loop, the imprinting fabric defining an imprinting surface for imprinting the web and being arranged to pass through the nip of the hot press with the web against the imprinting surface such that the web is imprinted. The imprinting fabric continues to support the imprinted web downstream of the hot press at least up to the final drying section.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: December 3, 2002
    Assignee: Metso Paper Karlstad AB
    Inventor: Ingvar Klerelid
  • Patent number: 6485611
    Abstract: A paper web is smoothened by passing the web through a pre-calender device on a paper machine before the application of a coating. The pre-calender device comprises at least one pair of steel rolls, one of which is heated, and a liquid application device which applies a thin film of water to the surface of the web which contacts the heated roll before the web enters the nip between the rolls. The web is then dried after exiting the nip either by wrapping the heated roll and/or by applying heat externally to the web.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 26, 2002
    Assignee: Westvaco Corporation
    Inventor: Donald G. Bauer
  • Patent number: 6475342
    Abstract: The invention relates to a method and arrangement for moistening a substantially dry fiber web and subjecting the moistened web to heat and compression.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: November 5, 2002
    Assignee: Metso Paper, Inc.
    Inventor: Elias Retulainen
  • Patent number: 6458248
    Abstract: The present invention is an apparatus for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: October 1, 2002
    Assignee: Fort James Corporation
    Inventors: Steven L. Edwards, Robert J. Marinack, Jeffrey Charles McDowell, Gary L. Worry
  • Publication number: 20020124981
    Abstract: A method and machine for the manufacturing a fibrous pulp web including forming a first draining zone and a second draining zone which are successively arranging in a web run direction, applying pressure in the first drainage zone which increases in the web run direction from an initial pressure to a final pressure to drain one side of the web, and applying pressure in the second drainage zone which increases in the web run direction from an initial pressure to a final pressure to drain the other side of the web. The initial pressure in the second draining zone is less than the final pressure in the first draining zone.
    Type: Application
    Filed: May 1, 2001
    Publication date: September 12, 2002
    Applicant: VOITH SULZER PAPIERMASCHINEN GmbH
    Inventors: Joachim Henssler, Hans Loser, Karl Steiner, Albrecht Bauder
  • Publication number: 20020117283
    Abstract: A method and apparatus for improving forming of a web of paper or paper board employing prepressing during web forming. Forming wires are brought together over at least one roll or alternatively two rolls. The web then passes, sandwiched between two wires through one or more pressure nips which may be one or more roll nips or an extended nips. The pressure nip may be formed as the web travels between the two fabrics, one of them being a forming wire, along a straight path or alternatively as the web travels partially around a roll. The web is then sandwiched between a wire and a fabric, which may be a felt or a belt, and passed through another press nip which may be one or more roll nips or an extended nip.
    Type: Application
    Filed: April 24, 2002
    Publication date: August 29, 2002
    Inventors: Nils Soderholm, Petter Honkalampi, Pekka Pakarinen, Heikki Kaasalainen
  • Patent number: 6428655
    Abstract: The invention concerns an integrated paper machine, which comprises, in the running direction of the web, a multi-layer headbox (100), a gap former (200), in which there is at least one pre-press (303, 304), a press section (300), in whcih there is at least one extended-nip press (308, 309), a pre-dryer section (400), in which the web (W) is dried by means of a high-capacity dryer unit, a dryer section (500), in which there is at least one dryer group (R1, R2, R3) which makes use of single-wire draw, as well as a surface treatment device (P) for the web. Further, the paper machine is provided with a closed web draw at least to the end of the dryer section (500).
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: August 6, 2002
    Assignee: Metso Paper, Inc.
    Inventor: Reima Kerttula
  • Publication number: 20020096277
    Abstract: A method and apparatus are disclosed for making a high bulk, coated paper of a unique structure with the coating forming a lower portion of the total caliper and the paper base forming a higher portion of the total caliper than conventionally made coated paper of the same weight. The process includes the step of using furnish with a high percentage of mechanical pulp, applying that furnish to papermachine wires, preferably with a gap former, coating the paper with a coating containing a plastic pigment, preferably of 4 or more parts per 100 parts of coating pigment, and calendering the coated paper at a nip loading less than conventional supercalendering nip loading. Preferably, the finished coated paper will have a 75° TAPPI gloss of 40 or above. The method and apparatus can be used to make lightweight or other weights of coated paper.
    Type: Application
    Filed: April 20, 2001
    Publication date: July 25, 2002
    Applicant: Consolidated Papers, Inc.
    Inventors: Ralph L. Lau, Bernard J. Berger, Martin E. Munce