With Heating And/or Cooling Patents (Class 162/206)
  • Patent number: 9869036
    Abstract: An apparatus for controlling a composite fabric having internal axial tows includes a support member configured to engage the fabric substantially up to a composite component form. The support member includes a nonslip portion directly engaging a first outer surface of the fabric. The apparatus further includes a primary securing member engaging and applying pressure on the fabric at a second outer surface of the fabric opposite the first outer surface. Upon displacement of the axial tows of the fabric relative to the first and second outer surfaces, the support member and the primary securing member substantially maintain original configurations of the first and second outer surfaces of the fabric engaged between the support member and the primary securing member.
    Type: Grant
    Filed: April 13, 2015
    Date of Patent: January 16, 2018
    Assignee: GKN Aerospace Services Structures Corporation
    Inventors: Christopher John Feeney, Steven Robert Hayse, David Andrew Rogozinski, Rene Alfred Varrato
  • Publication number: 20150136349
    Abstract: A method for producing a fiber web (W) in which method the fiber web (W) is calendered in at least one nip (NA) of a calender (20A). The fiber web (W) is cooled at least partially by moisturizing evaporating cooling by a moisturizing evaporating cooling unit (10) before the fiber web is calendered and moisture is absorbed during 10-500 ms. A production line for producing fiber webs (W) has a calender (20A) with a calendering nip (NA). The production line for fiber webs, in particular board webs, has a fiber web machine (50), in particular a board machine, with a head box, a wire section, a press section and a drying section, and at least one moisturizing evaporating cooling module (10), and a hard nip calender (20A) with a thermo roll, which has a surface temperature at least 120° C., and a reel-up (40).
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Applicant: VALMET TECHNOLOGIES, INC.
    Inventors: Reijo Pietikäinen, Mika Viljanmaa, Jari Ilomäki, Seppo Luomi
  • Publication number: 20140284012
    Abstract: The invention relates to an arrangement arranged to introduce a three-dimensional structure in a paper during production of said paper in a paper making machine (1). The arrangement comprises a heat roll (14) arranged to dry a wet paper web and an extended nip roll (12) arranged to form a transfer nip (TN) with said heat roll (14). The extended nip roll (12) is provided with a flexible jacket (17) arranged around the circumferential area of said extended nip roll (12). An external surface of said flexible jacket (17) is provided with a textured portion (15) and when the wet paper web passes the transfer nip between said extended nip roll (12) and said heat roll (14), said textured portion (15) of the external surface of the flexible jacket (17) will impart a three-dimensional texture to the paper web.
    Type: Application
    Filed: December 4, 2012
    Publication date: September 25, 2014
    Applicant: VALMET AB
    Inventor: Tord Gustavsson
  • Patent number: 8771467
    Abstract: A carrier-tape base paper making method and the base paper made thereby fall into the technical field of papermaking. According to performance requirements, the base paper is made through pulp conditioning and papermaking, in which different pulping and auxiliary materials for surface, intermediate and bottom layers are added. The method includes such steps as beating, conditioning, papermaking, calendering and reeling. The carrier-tape base paper features high strength, perfect waterproof and bonding performance, limited physical damages to electronic elements and satisfactory resilience.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: July 8, 2014
    Assignee: Zhejiang Jiemei Electronic & Technology Co., Ltd
    Inventor: Junyun Fang
  • Publication number: 20140186576
    Abstract: A nonwoven web of unmodified or cyanoethylated nanocellulose was found to have greater strength than kraft paper after immersion in oil at high temperature, making it useful as an insulation material for transformers. A mixture of nanocellulose and polymetaphenylene isophthalamide has further improved properties for use as an insulating material.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: MARK ANDREW HARMER, Ann Y. Liauw, Byoung Sam Kang, Mark A. Scialdone
  • Patent number: 8764941
    Abstract: A base paper of aramid fiber honeycomb core and its manufacturing method are provided. The base paper comprises 11-90 parts by weight of structural fiber, 10-70 parts by weight of crosslinking fiber, and 0-19 parts by weight of additive fiber, wherein the structural fiber is poly(p-phenylene terephthal amide) fiber, the crosslinking fiber is poly(m-phenylene isophthal amide) fibrid, and the additive is polyester fiber.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: July 1, 2014
    Assignee: Longpoint Co., Ltd.
    Inventors: Peizhi Heng, Wenyong Tang, Shiyi Tao, Liping Wang
  • Patent number: 8734614
    Abstract: A polyphenylene sulfide fiber has an amount of heat of crystallization measured by DSC is 10 J/g or more and the degree of shrinkage on dry heating of 150° C.×30 minutes is 20% or less. A method produces a densified wet-laid nonwoven fabric by subjecting paper produced in a papermaking process and containing 60 to 100% by mass of a polyphenylene sulfide fiber having an amount of heat of crystallization of 10 J/g or more and an amount of heat of crystallization of the wet-laid nonwoven fabric before heating-pressurizing treatments is 5 J/g or more to heating-pressurizing treatment at a temperature that is not lower than the glass transition temperature and not higher than the melting point of the polyphenylene sulfide fiber.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: May 27, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Tomoko Takano, Koji Sugano, Yuhei Maeda, Takeshi Sugimoto
  • Patent number: 8728277
    Abstract: A method to dewater a fibrous web includes directing the fibrous web through a first press zone defined between a revolving permeable belt and a revolving permeable support belt and having a first press zone length. The fibrous web is arranged lying between the revolving permeable belt and the revolving permeable support belt. A fluid is caused to flow through the permeable belt, the fibrous web and the support belt at least over a section of the first press zone length. The fibrous web is dewatered in a second press zone following the first press zone and defined between the revolving permeable belt and the revolving permeable support belt, the second press zone having a second press zone length. The fibrous web is led through the second press zone between the permeable belt and the support belt, the permeable belt and the support belt each having a different compressibility.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: May 20, 2014
    Assignee: Voith Patent GmbH
    Inventors: Joao V. Boechat, Thomas Scherb, Luiz C. Silva, Rogerio Berardi, Daniela Reis
  • Patent number: 8663425
    Abstract: The present invention provides a method for easily and efficiently manufacturing microfibrous cellulose composite sheets. The present invention is a method for manufacturing microfibrous cellulose composite sheets, including a preparation process in which a polymer emulsion is mixed with an aqueous suspension including microfibrous cellulose, thereby preparing a mixed fluid, a papermaking process in which the mixed fluid is dehydrated on a porous base material through filtration, and a sheet including moisture is formed, and a drying process in which the sheet including moisture is heated and dried. In addition, the present invention is a method for manufacturing a microfibrous cellulose composite sheet laminate, in which the microfibrous cellulose sheets are thermally compressed and thus laminated as they are or after being provided with a polymer layer on at least one surface thereof.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: March 4, 2014
    Assignee: Oji Holdings Corporation
    Inventors: Yasutomo Noishiki, Takashi Kawamukai, Mitsuru Tsunoda, Yoshiyuki Asayama
  • Patent number: 8663426
    Abstract: The present invention relates to a method of producing a cellulose-fiber flat structure, the method including obtaining a cellulose-fiber flat structure by filtering a fine cellulose-fiber dispersion containing fine cellulose fibers having an average fiber diameter of 4 to 100 nm, using a filter material having a water permeability of not more than 100 ml/m2·s and an initial tensile modulus of 20 MPa or greater. The present invention is able to produce a cellulose-fiber flat structure by efficiently recovering fine cellulose fibers from a dispersion containing fine cellulose fibers having an average fiber diameter at the nano level. The method of producing a cellulose-fiber flat structure can also be applied to a continuous process.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: March 4, 2014
    Assignees: Mitsubishi Chemical Corporation, Oji Paper Co., Ltd.
    Inventors: Tsuyoshi Fujiwara, Naohide Ogita, Takashi Kawamukai
  • Patent number: 8491754
    Abstract: There is disclosed an expansion molded product, and a web and stampable sheet suitable for use in the production thereof as well as a method of producing the same. A disclosed method of producing a web, stampable sheet and expansion molded product of a stampable sheet comprises uniformly dispersing reinforcing fibers, thermoplastic resin and thermal expandable particles in an aqueous medium containing a surfactant with fine foams to prepare a foamy solution, filtering the foamy solution to form a web, heating pressing and cooling the web to form a stampable sheet, heating the stampable sheet to expand the thermal expandable particles, and shaping and cooling the stampable sheet, wherein the expanded thermal expandable particles are eccentrically located toward one-side surface of the expansion molded product of the stampable sheet by removing foams by suction during the filtering and eccentrically locating the thermal expandable particles toward one-side surface of the web.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: July 23, 2013
    Assignee: K-Plasheet Corporation
    Inventors: Yutaka Araki, Seiji Hanatani
  • Patent number: 8440055
    Abstract: A pressing arrangement including at least one first fabric and second fabric both being permeable. A paper web is disposed between the first fabric and the second fabric. A pressure producing element is in contact with the first fabric. A support surface of a supporting structure is in contact with the second fabric. A differential pressure is provided between the first fabric and the support surface that acts on the first fabric, the paper web, and the second fabric, whereby the paper web is subjected to mechanical pressure and experiences a predetermined hydraulic pressure so as to cause water to be drained from the paper web. The pressing arrangement is structured and arranged to allow air to flow in a direction from the first fabric through the paper web and through the second fabric.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 14, 2013
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoröe Scherb, Hubert Walkenhaus, Jeffrey Herman, Luiz Carlos Silva
  • Patent number: 8435384
    Abstract: A method for drying a fibrous web, particularly a paper, cardboard or tissue web whereby the moving fibrous web is treated with got air in the area of a pre-definable drying zone the fibrous web is treated, at least in some areas inside the drying zone with steam.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: May 7, 2013
    Assignee: Voith Patent GmbH
    Inventors: Luiz C. Da Silva, Thomas Scherb, Peter Kahl, Frank Wegehaupt, Dieter Müller
  • Patent number: 8402673
    Abstract: A method for drying a fibrous web, especially a paper, cardboard or tissue web, the moving web is treated with hot air from a hot air hood in the area of a upstream pre-defined drying zone, and is subsequent carried to the drying zone in a downstream drying cylinder, especially a Yankee-Cylinder, to which an additional hood is allocated and in whose area the fibrous web is dried further. The hot air for the hot air hood allocated to the upstream drying zone is recovered, at least partially, from the exhaust air of the hood allocated to the downstream drying cylinder.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 26, 2013
    Assignee: Voith Patent GmbH
    Inventors: Luiz C. Da Silva, Thomas Scherb, Ronaldo Parucker, Oswaldir Rizzatto
  • Patent number: 8377262
    Abstract: A structured papermaking fabric for making a bulky tissue web, including: a web facing side and an opposite side, the web facing side including a structure formed by interweaving of transverse yarns with longitudinal yarns, the structure including a plurality of pattern areas being regularly distributed on the web facing side and each of said pattern area being surrounded by an edge area, said pattern areas are woven in a plain weave and each of said edge areas including at least one longitudinal and at least one transverse edge segment, said longitudinal edge segment being formed by weaving of a longitudinal yarn over at least four, preferably at least five, consecutive transverse yarns, said transverse edge segment being formed by weaving of a transverse yarn over at least four consecutive longitudinal yarns.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: February 19, 2013
    Assignee: Voith Patent GmbH
    Inventor: Scott Quigley
  • Patent number: 8366878
    Abstract: A structuring layer of a structuring belt for structuring a wet fibrous web in a press section of a tissue papermaking machine for manufacturing high bulk tissue paper, the structuring layer having a web-carrying side with a surface for cooperating with the fibrous web, the surface having depressions distributed over the web-carrying side and forming a three-dimensional structure of the surface. The depressions altogether constitute 20-80% of the surface. Each depression has a dimension l of 0.25-2.5 mm in a first direction in the plane of the top surface area, a dimension b of 0.25-2.0 mm in a second direction in the plane of the top surface area, such directions being at right angles to each other, a mean depth d of 0.05-0.6 mm, and an area a as measured in the plane of the top surface area of 0.063-5.0 mm2.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: February 5, 2013
    Assignee: Albany International Corp.
    Inventors: Ingvar Berndt Erik Klerelid, Ola Thomasson, Bo-Christer Aberg, Cary P Johnson, John J LaFond
  • Patent number: 8261465
    Abstract: Device and process for producing and treating a fibrous web. The device includes a moistening unit structured and arranged to simultaneously influence a cross machine moisture profile of the web and the curl of the web independently of each other. 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: Grant
    Filed: March 9, 2005
    Date of Patent: September 11, 2012
    Assignee: Voith Paper Patent GmbH
    Inventors: Roland Mayer, Antje Stein, Markus Oechsle, Frank Wegehaupt
  • Publication number: 20120219756
    Abstract: A semipermeable membrane supporting material formed of a non-woven fabric comprising two or more main synthetic fibers having different fiber diameters and a binder synthetic fiber and having a semipermeable membrane application surface and a non-application surface having a semipermeable membrane application surface:non-application surface smoothness ratio of from 5.0:1.0 to 1.1:1.0, a semipermeable membrane supporting material formed of a non-woven fabric comprising a main synthetic fiber and a binder synthetic fiber, having an average breaking length of less than 4.0 km in the machine direction (MD) and the cross direction (CD) at an elongation by 5% and having a dimensional change ratio, measured under heat in the cross direction (CD), of ?0.3 to +1.0%, a spiral-type semipermeable membrane element including the above semipermeable membrane supporting material, and a process for producing a semipermeable membrane supporting material.
    Type: Application
    Filed: October 18, 2010
    Publication date: August 30, 2012
    Inventors: Mitsuo Yoshida, Kazuhiko Takayama, Kaoru Kimura, Tsunekatsu Takeuchi, Hitoshi Fujiki, Motomichi Fukuda
  • Patent number: 8246783
    Abstract: A roller for thermal pressure treatment of web-type media such as paper or non-wovens, provided with an inner heating system and comprising a base body made of hardened and tempered wrought steel or alloyed cast iron, an intermediate layer applied to the surface thereof and a hard wearing layer applied thereon. Peripheral bores or canals extending parallel to the axis are arranged in the base body of the roller at a regular distance from the surface, being distributed in a regular manner on the circle formed about the roller axis. The materials used and the arrangement of the peripheral bores are such that the roller can be used in calanders in a method wherein the surface temperatures of the roller exceed 140° C., the heating capacity is more than 35 kW/m2, operational speeds are more than 1200 m/min, line pressures are greater than 250 kN/m and the processed webs of material weigh more than 45 g/m2 and have a degree of moisture of over 5%.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: August 21, 2012
    Assignee: SHW Casting Technologies GmbH
    Inventor: Heinz-Michael Zaoralek
  • Patent number: 8137505
    Abstract: A system and process for producing tissue webs is disclosed. The tissue webs are formed from an aqueous suspension of fibers and dried using a through-air dryer. During formation of the web, the web is transferred from a transfer fabric to a throughdrying fabric and then conveyed around a drying cylinder of a through-air dryer. In accordance with the present invention, a pressurized roll emits a gaseous stream through a pressurized zone that pushes and transfers a wet web from a transfer fabric to the throughdrying fabric. The amount of pressure used during the transfer can vary depending upon the particular application and may be used to control the bulk of the web. By using a pressurized transfer roll, the amount the throughdrying fabric is wrapped around the drying cylinder of the through-air dryer can be maximized for increasing the efficiency of the system and the process.
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 20, 2012
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Frank S. Hada, Michael Alan Hermans, Ronald F. Gropp
  • Patent number: 8118979
    Abstract: Method of drying a paper web in a press arrangement. The method includes moving the paper web, disposed between at least one first fabric and at least one second fabric, between a support surface and a pressure producing element and moving a fluid through the paper web, the at least one first and second fabrics, and the support surface. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 21, 2012
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luis Carlos Silva, Hubert Walkenhaus
  • Patent number: 8092652
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: January 10, 2012
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoroee Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 8075739
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: December 13, 2011
    Assignee: VOITH PATENT GmbH
    Inventors: Thomas Thoroee Scherb, Jeffrey Herman, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 7976683
    Abstract: A machine for producing a fibrous web, in particular a paper web, paperboard web or tissue web, includes a former on which the fibrous web is formed on a structured belt and is dewatered between said structured belt and a forming belt, and a drying apparatus for the further dewatering of the fibrous web, through which the fibrous web is guided together with the structured belt and in which hot air flows through the permeable structured belt and the fibrous web. The forming fabric is formed by a printed forming fabric or a DSP fabric with zonally different permeability.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: July 12, 2011
    Assignee: Voith Patent GmbH
    Inventor: Thomas Scherb
  • Patent number: 7967941
    Abstract: A laminate comprising aramid paper containing aramid fiber and aramid pulp and polyester film, the aramid paper and polyester film having been subjected to plasma surface treatment before laminating, wherein the aramid paper and polyester film are continuously bonded to each other. The disclosure is concerned with a process for manufacturing the laminate and an apparatus for manufacturing the laminate.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: June 28, 2011
    Assignees: Hitachi Engineering & Services Co., Ltd., Kawamura Sangyo Co., Ltd.
    Inventors: Satoru Nakanishi, Kenichirou Tada, Miyoshi Yokura, Tetsuo Inoue
  • Patent number: 7931781
    Abstract: A system for drying one of a tissue and a hygiene web including a drying apparatus, a permeable structured fabric, a permeable dewatering fabric and a mechanism for applying pressure. The permeable structured fabric carries the web over the drying apparatus. The permeable dewatering fabric contacts the web and is guided over the drying apparatus. The mechanism for applying pressure, applies pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: April 26, 2011
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoröe Scherb, Hubert Walkenhaus, Jeffrey Herman, Luiz Carlos Silva
  • Patent number: 7850820
    Abstract: This invention relates to a method for the production of a three-dimensionally structured tissue paper web with which the tissue paper web is pressed, in order for it to be structured, on a three-dimensionally structured mesh and with which the tissue paper web is conveyed, unheld by a skin, in a drying step over a heated surface. The tissue paper web is conveyed, held only by the structured mesh, in another drying step prior to the drying step over at least one heated surface.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: December 14, 2010
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Ronaldo Parucker
  • Patent number: 7815773
    Abstract: A method of manufacturing a fibrous web in a papermaking machine including the steps of forming, carrying and transferring the fibrous web. The forming step includes forming the fibrous web in a forming device. A first carrying step includes carrying the fibrous web from the forming device through an extended nip press apparatus. A second carrying step includes carrying the fibrous web from the extended nip press apparatus to a transfer point. The transferring step includes transferring the fibrous web at the transfer point to a drying cylinder.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: October 19, 2010
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thor{hacek over (o)}e Scherb, Luiz Carlos Silva
  • Patent number: 7794567
    Abstract: Disclosed is an uncoated facestock product having enhanced printability, holdout, and edge wick properties, which are attained through a combination of manufacturing techniques including increased refining of the furnish, sizing, increased hard nip calendering, and the use of extended nip calendering. The resulting uncoated facestock product has the following properties: a density between about 0.7 and 1.0 g/cc and/or an ash content of less than about 15% as measured by the 525° C. standard test method; and a finished surface having a Sheffield smoothness between about 50 and 150 Sheffield units and a Parker Print Surf roughness (PPS-10) less than about 5.0 microns.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: September 14, 2010
    Assignee: International Paper Co.
    Inventors: Dennis W Anderson, Kristine Butts
  • Patent number: 7776185
    Abstract: The invention relates to a machine for producing and/or further processing a fibrous web, said machine comprising a press part and a drying part. The press part comprises only one press nip, and the first or second drying group of the dry part comprises an air-flow drying unit.
    Type: Grant
    Filed: August 4, 2005
    Date of Patent: August 17, 2010
    Assignee: Voith Patent GmbH
    Inventor: Thomas Elenz
  • Patent number: 7776179
    Abstract: The present invention imparts fire-retardancy upon cellulosic products utilizing a cost-effective, non-toxic, and reliable process. Unlike previous methods which impart superficial fire-retardant coatings upon finished products, the present process treats the individual cellulosic particles (i.e. fibers, chips etc.) that make up cellulose-based particle products. Treating the individual particles provides fire-retardancy throughout the entire length and width of the product. This full-depth retardancy provides superior protection, especially in catastrophic fires where the surface coat of other products can be compromised.
    Type: Grant
    Filed: May 8, 2006
    Date of Patent: August 17, 2010
    Inventor: Thomas J. Lally
  • Publication number: 20100139881
    Abstract: An apparatus for transferring a wet paper web from a press nip to a drying cylinder (52) of a papermaking machine, and for structuring the web, comprises an impermeable transfer belt (35) having a web-contacting surface, the wet paper web passing through the press nip enclosed between a press felt (33) and the transfer belt, and a permeable structuring fabric (37) for transfer of the web onto the drying cylinder, the structuring fabric having a structured surface and being arranged in a loop within which a suction transfer device (38) is disposed, said suction transfer device having a suction zone (41).
    Type: Application
    Filed: October 26, 2007
    Publication date: June 10, 2010
    Applicant: METSO PAPER KARLSTAD AB
    Inventors: Paul Douglas Beuther, Frank Stephen Hada, Jeffrey Dean Holz, Hans Ivarsson, Ingvar Berndt Erik Klerelid, Johan Ulf Ragard
  • Patent number: 7691230
    Abstract: A device for producing a fibrous web and, in particular, a web of tissue including a press zone through which the fibrous web together with an endless permeable structured band and an unstructured permeable supporting band is fed while lying between the structure band and the supporting band, a press nip provided on a drying cylinder through which the fibrous web together with the structured band is fed while lying between the structured band and the drying cylinder, and after which the fibrous web is led from the drying cylinder through a calender.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: April 6, 2010
    Assignee: Voith Patent GmbH
    Inventors: Thomas Scherb, Luiz Carlos Silva, Rogerio Berardi, Danilo Oyakawa
  • Patent number: 7691232
    Abstract: A method and a device for treating a web, wherein the web is coated by a coating device. The coated web is calendered, and a steam application device applies steam to the coated web before the coated web is calendered. 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: Grant
    Filed: March 1, 2005
    Date of Patent: April 6, 2010
    Assignee: Voith Paper Patent GmbH
    Inventors: Ruediger Kurtz, Joerg Rheims
  • Patent number: 7670458
    Abstract: A method of manufacturing a gravure printing paper includes: providing a substance having an effect of inhibiting a binding between pulp fibers; preparing a mixture of pulp fibers and fillers; and adding the substance to the mixture; making a gravure printing paper using the substance-added mixture.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: March 2, 2010
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Takashi Ochi, Takehide Kasahara, Hideki Fujiwara
  • Patent number: 7662262
    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: Grant
    Filed: September 28, 2007
    Date of Patent: February 16, 2010
    Assignee: ABB Ltd.
    Inventor: Robert G. Hamel
  • Patent number: 7662260
    Abstract: A method for the manufacture of a structured fiber web including the steps of pressing a fiber web onto an imprinting fabric by way of a first pressure field, thereby pre-imprinting the fiber web, the fiber web having a dry content of less than approximately 35%, and subsequently pressing the fiber web onto the imprinting fabric by way of a further pressure field.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: February 16, 2010
    Assignee: Voith Patent GmbH
    Inventors: Thomas Thoroe-Scherb, Harald Schmidt-Hebbel, Jeffrey Herman
  • Patent number: 7655114
    Abstract: The present invention shows a process and device of calendering a web. The process includes drying the web and winding the web at the end of a production section. The process includes transporting the wound web to at least one off-line calender, unwinding the web and passing the web through the at least one off-line calender. Further, the process includes treating the web between drying and winding of the web in at least one on-line calendering unit. Further still, the process includes at least one on-line calendering unit includes at least one nip defined by at least one hard roller. 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: Grant
    Filed: April 22, 2005
    Date of Patent: February 2, 2010
    Assignee: Voith Paper Patent GmbH
    Inventors: Josef Kohnen, Dirk Cramer
  • Publication number: 20090283234
    Abstract: A method for drying a fibrous web, particularly a paper, cardboard or tissue web whereby the moving fibrous web is treated with got air in the area of a pre-definable drying zone the fibrous web is treated, at leas in some areas inside the drying zone with steam.
    Type: Application
    Filed: June 18, 2009
    Publication date: November 19, 2009
    Inventors: Luiz C. Da Silva, Thomas Scherb, Peter Kahl, Frank Wegehaupt, Dieter Muller
  • Publication number: 20090199989
    Abstract: A roller for thermal pressure treatment of web-type media such as paper or non-wovens, provided with an inner heating system and comprising a base body made of hardened and tempered wrought steel or alloyed cast iron, an intermediate layer applied to the surface thereof and a hard wearing layer applied thereon. Peripheral bores or canals extending parallel to the axis are arranged in the base body of the roller at a regular distance from the surface, being distributed in a regular manner on the circle formed about the roller axis. The materials used and the arrangement of the peripheral bores are such that the roller can be used in calanders in a method wherein the surface temperatures of the roller exceed 140° C., the heating capacity is more than 35 kW/m2, operational speeds are more than 1200 m/min, line pressures are greater than 250 kN/m and the processed webs of material weigh more than 45 g/m2 and have a degree of moisture of over 5%.
    Type: Application
    Filed: July 31, 2003
    Publication date: August 13, 2009
    Inventor: Heinz-Michael Zaoralek
  • Patent number: 7550061
    Abstract: A dewatering fabric for an ATMOS system or a TAD machine that includes a caliper of between approximately 0.1 mm and approximately 15 mm, a permeability value of between approximately 1 cfm and approximately 500 cfm, an overall density of between approximately 0.2 g/cm3 and approximately 1.10 g/cm3, and a weight of between approximately 100 g/m2 and approximately 3000 g/m2. A belt press for a paper machine can utilize the dewatering fabric. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: June 23, 2009
    Assignee: Voith Paper Patent GmbH
    Inventors: Hubert Walkenhaus, Robert L. Crook, Calvin Hayden
  • Patent number: 7504004
    Abstract: Apparatus for continuously producing a band of paper, particularly for toilet use, includes at least a device for forming the band of paper, a felt conveyor belt suitable for transporting the band of paper through a dehydrating device having at least one presser cylinder suitable for pressing the band of paper against a drying cylinder The presser cylinder has a diameter no smaller than one third of the diameter of the drying cylinder.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 17, 2009
    Assignee: SCA Hygiene Products AB
    Inventor: Riccardo Michelotti
  • Patent number: 7476293
    Abstract: System for drying a tissue or hygiene web. The system includes a permeable structured fabric carrying the web over a drying apparatus. A permeable dewatering fabric contacts the web and is guided over the drying apparatus. A mechanism is used to apply pressure to the permeable structured fabric, the web, and the permeable dewatering fabric at the drying apparatus. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: January 13, 2009
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
  • Patent number: 7476294
    Abstract: A permeable belt, a belt press including a roll having an exterior surface and the permeable belt, and a method of drying or pressing a web with the permeable belt. The permeable belt can be tensioned to at least 30 KN/m. A side of the permeable belt has an open area of at least approximately 25% and a contact area of at least approximately 25%. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: January 13, 2009
    Assignee: Voith Patent GmbH
    Inventors: Jeffrey Herman, Thomas Thoroee Scherb, Luiz Carlos Silva, Hubert Walkenhaus
  • Publication number: 20080295987
    Abstract: The invention relates to a method of making surface-sized paper/board. The web to be treated in the method is after surface sizing passed to a treatment process for providing a desired drying shrinkage and/or increase of drying stresses to create thereby a desired effect on the flexural strength and/or bulk of paper/board.
    Type: Application
    Filed: November 1, 2005
    Publication date: December 4, 2008
    Inventors: Reijo Pietikainen, Mika Viljanmaa, Juha Lipponen, Juha Pakarinen, Jussi Jaaskelainen, Maria Lepola
  • Publication number: 20080257510
    Abstract: A method and an apparatus for heating a roller used in the production and/or finishing of a web of material, particularly a paper web or paperboard web, are provided. According to the method, a roller is heated from the outside by a heated gas. The apparatus is configured to heat a roller used in the production and/or finishing of a web of material according to the method.
    Type: Application
    Filed: January 21, 2005
    Publication date: October 23, 2008
    Inventor: Fabian Doling
  • Publication number: 20080236776
    Abstract: The invention relates to a method for producing a paper web or another fibrous web. According to said method, the fibrous web is impinged upon by pressure in the penultimate press nip and then in a last press nip of a press section. One face of the fibrous web is in contact with a smooth surface when penetrating the penultimate press nip while the other face of the fibrous web is in contact with a smooth surface the when penetrating the last press nip.
    Type: Application
    Filed: June 20, 2006
    Publication date: October 2, 2008
    Inventor: Ulrich Begemann
  • Patent number: 7407562
    Abstract: The moisture profile and/or moisture gradient of a paper web of at least SC quality paper is controlled in a paper machine comprising a calender (1) which has at least two roll stacks (21, 22; 31, 32), one stack has at least three rolls and another has at least five rolls. The web is moisturized to a desired pre-moisture content M1 by a pre-moisturizer (7) before the calender. At least one intermediate moisturizer (3) is arranged between two roll stacks moisturizes the web to a desired intermediate moisture content M2 before the last roll stack (31, 32), in which the web is dried to a desired final moisture value M3. For continuously controlling and optimizing the moisture profile and/or moisture gradient of the web, the pre-moisturizing W1 of the web is controlled by a pre-moisturizer (7) control parameter which corresponds to the final moisture value M3 of the web.
    Type: Grant
    Filed: June 16, 2003
    Date of Patent: August 5, 2008
    Assignee: Metso Paper, Inc.
    Inventors: Antti Heikkinen, Harri Kuosa, Pekka Linnonmaa, Hannu Lätti, Markku Kyytsönen, Markko Jaakkola
  • Patent number: 7399379
    Abstract: The present invention relates to a sheet structure for electrical insulation or flame resistance comprising a barrier ply having a mica-rich face and a mica-poor face and a reinforcing ply containing a saturable backing layer attached to the mica-poor face of the barrier ply.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: July 15, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Laurence N. Bascom
  • Patent number: RE40857
    Abstract: A recording medium particularly suitable for electrophotographic copying is characterized by coated paper that for a given basis weight has proportionally less coating and proportionally more fiber than conventional coated paper made for electrophotographic processes. The base sheet of the coated paper is preferably formed square on a paper machine wet end and has on the order of 40-50% less filler than conventional sheet paper made for electrophotographic processes. After being formed and dried, the base sheet is provided with a top coat weight that is approximately 60% less than the typical coat weight used for conventional paper. The coating is formulated to have sufficient viscosity to stay more on the surface of the base sheet. The coated sheet is calendered to a medium gloss on the order of a 75° TAPPI gloss of about 45, both to preserve a degree of surface roughness to enhance runnability of the paper through an electrophotographic copier and to provide a pleasant and easily readable surface.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: July 21, 2009
    Assignee: NewPage Wisconsin System Inc.
    Inventors: Charles A. Normington, Gregory E. Pulchinski, Gary G. Schiller