WO1999053136A1 - Ameliorations relatives a des garnitures de rouleaux - Google Patents

Ameliorations relatives a des garnitures de rouleaux Download PDF

Info

Publication number
WO1999053136A1
WO1999053136A1 PCT/GB1999/000931 GB9900931W WO9953136A1 WO 1999053136 A1 WO1999053136 A1 WO 1999053136A1 GB 9900931 W GB9900931 W GB 9900931W WO 9953136 A1 WO9953136 A1 WO 9953136A1
Authority
WO
WIPO (PCT)
Prior art keywords
roll
layer
coating
roll cover
cover according
Prior art date
Application number
PCT/GB1999/000931
Other languages
English (en)
Inventor
Timothy Noel Ashworth
Original Assignee
Voith Fabrics Heidenheim Gmbh & Co. Kg.
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 Voith Fabrics Heidenheim Gmbh & Co. Kg. filed Critical Voith Fabrics Heidenheim Gmbh & Co. Kg.
Priority to EP99914644A priority Critical patent/EP0990068A1/fr
Publication of WO1999053136A1 publication Critical patent/WO1999053136A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
    • F26B13/24—Arrangements of devices using drying processes not involving heating
    • F26B13/26—Arrangements of devices using drying processes not involving heating using sorbent surfaces, e.g. bands or coverings on rollers
    • 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
    • D21F3/10—Suction rolls, e.g. couch rolls
    • D21F3/105—Covers thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Definitions

  • This invention relates to a dewatering membrane structure such as
  • a roll cover for example for use as a dewatering membrane on a capillary
  • dewatering roll of the kind disclosed for example in U.S. 5,701 ,682,
  • Rolls are used in paper machines and the like in providing press-nips
  • CA-A-1335420 may as in CA-A-1335420 be provided with short belts in place of
  • the roll is covered by a capillary membrane having
  • the U.S. Patent discloses a number of capillary fabrics, comprising
  • the capillary membrane and made for example of metal or synthetic plastics
  • capillary membrane such as a roll cover, felt or other fabric which has a
  • a capillary dewatering membrane embodied as a roll
  • the web-contacting surface may be provided by a coating or layer
  • the coating or layer may contain textile reinforcement, in the form
  • the coating or layer may comprise particles of polymeric material, or
  • thermoplastic or metal fibres which are sintered, or partially
  • the coating or layer comprises a
  • the membrane or roll cover or other fabric may comprise a support
  • the coating or layer may alternatively comprise a microporous foam
  • the coating or layer may be of a plastics material which has been rendered porous by leaching out of soluble components, eg a so-called
  • porum or comprise a layer made porous by embodying soluble yarns or
  • the coating or layer may contain textile or fibre reinforcement, which is
  • Figure 1 is a diagrammatic longitudinal sectional view of a dewatering
  • Figure 2 is an enlarged diagrammatic cross-section of one embodiment
  • Figure 3 is an enlarged diagrammatic cross-section of a second
  • Fig. 1 shows a dewatering roll 10, having a perforated cylinder body
  • carrier fabric 14 carries a wet web W of fibrous paper precursor into
  • the cylinder body 30 is clad with a capillary dewatering membrane
  • a cleansing shower 18 is also provided to wash the membrane 12
  • Nip roll 16 serves to apply the web 14 to the surface of roll 10.
  • Fig. 2 is an enlarged fragmentary cross-section of a capillary dewatering membrane such as 12, according to the invention.
  • a perforated membrane 50 of a plastics material such as polyamide,
  • etc comprises apertures 51 separated by lands 52, which incorporate
  • reinforcing yarns 53 which are disposed to run for example in the
  • Membrane 50 supports a non-woven
  • fibrous batt or scrim layer 54 which is laminated to the membrane
  • Layer 55 is composed of an eg woven fabric reinforcement 57
  • the layer 55 comprises
  • thermoplastic polymeric material particles of a thermoplastic polymeric material which have been partially
  • particles may be granular, or beads or spheroids, or strands, fibres or fibrils
  • the layer 55 may comprise a sintered layer of metallic
  • a microporous reticulate layer 60 is eg transfer coated onto
  • a sheet 73 which has been formed by weaving a fabric with hollow tubular
  • weft threads 74 weft threads 74, encapsulating the fabric in resin, and abrading both sides
  • Straight pores may be provided by sintering the metal or polymer
  • Fig. 5 is a longitudinal sectional view of a roller 80, having a cover
  • roller sleeve 81 roller sleeve 81 , and through the roller cover 90.
  • This arrangement may be used for example in a transfer roller for transferring a paper sheet from the
  • the fine surface of the transfer roller would reduce or prevent
  • Roll covers according to the invention are intended for use mainly in
  • the suction force may be used simply to hold a sheet against the surface of the roll.
  • roll covers can be used in place of conventional hard or soft covers in
  • the covers may not only be used for press rolls but also may be used
  • the roll covers may be adapted for use with
  • the dewatering membrane of the invention provides a single layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)

Abstract

Une garniture (12) de rouleau, pouvant se présenter sous la forme d'une bande hors de contact d'avec une partie d'un rouleau, présente une structure poreuse non tissée, par exemple une couche de particules frittées (55) ou avec ou sans renforcement en tissu (57) ou une couche rendue poreuse par lessivage des particules ou des fibres, ou par formation de brèches dans des fibres creuses (75), ou revêtue d'une mousse microporeuse réticulée (60). La couche peut être portée sur une membrane perforée (50) ou une couche de base textile (62) et une couche non tissée (54) peut être disposée entre la couche de support et la couche de surface (56). La garniture peut constituer une membrane d'essorage capillaire.
PCT/GB1999/000931 1998-04-09 1999-04-09 Ameliorations relatives a des garnitures de rouleaux WO1999053136A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99914644A EP0990068A1 (fr) 1998-04-09 1999-04-09 Ameliorations relatives a des garnitures de rouleaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9807703.5 1998-04-09
GBGB9807703.5A GB9807703D0 (en) 1998-04-09 1998-04-09 Dewaterig membrane structure

Publications (1)

Publication Number Publication Date
WO1999053136A1 true WO1999053136A1 (fr) 1999-10-21

Family

ID=10830168

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/000931 WO1999053136A1 (fr) 1998-04-09 1999-04-09 Ameliorations relatives a des garnitures de rouleaux

Country Status (3)

Country Link
EP (1) EP0990068A1 (fr)
GB (1) GB9807703D0 (fr)
WO (1) WO1999053136A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434856B1 (en) 2001-08-14 2002-08-20 The Procter & Gamble Company Variable wet flow resistance drying apparatus, and process of drying a web therewith
US6746573B2 (en) 2001-08-14 2004-06-08 The Procter & Gamble Company Method of drying fibrous structures
CN107604737A (zh) * 2017-10-31 2018-01-19 宿迁市神龙家纺有限公司 一种吸湿透气造纸毛毯及其制备方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1090877A (en) * 1963-09-20 1967-11-15 Little Inc A Method and apparatus for removing liquids from fibrous articles
US4740409A (en) * 1987-03-31 1988-04-26 Lefkowitz Leonard R Nonwoven fabric and method of manufacture
EP0367739A2 (fr) * 1988-10-31 1990-05-09 Albany International Corp. Tissu pour presse ayant un revêtement de mousse pour le contrôle du volume libre
EP0786551A1 (fr) * 1996-01-25 1997-07-30 CONRAD MUNZINGER & CIE AG Procédé pour la fabrication d'une bande de matériau
US5701682A (en) * 1994-11-23 1997-12-30 Kimberly-Clark Worldwide, Inc. Capillary dewatering method and apparatus
WO1998001618A1 (fr) * 1996-07-08 1998-01-15 Scapa Group Plc Feutre a membrane en non-tisse
DE19732994A1 (de) * 1996-08-09 1998-02-12 Scapa Group Plc Filterstruktur und Verfahren zu deren Herstellung
WO1998007925A1 (fr) * 1996-08-24 1998-02-26 Scapa Group Plc Courroies permeables

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1090877A (en) * 1963-09-20 1967-11-15 Little Inc A Method and apparatus for removing liquids from fibrous articles
US4740409A (en) * 1987-03-31 1988-04-26 Lefkowitz Leonard R Nonwoven fabric and method of manufacture
EP0367739A2 (fr) * 1988-10-31 1990-05-09 Albany International Corp. Tissu pour presse ayant un revêtement de mousse pour le contrôle du volume libre
US5701682A (en) * 1994-11-23 1997-12-30 Kimberly-Clark Worldwide, Inc. Capillary dewatering method and apparatus
EP0786551A1 (fr) * 1996-01-25 1997-07-30 CONRAD MUNZINGER & CIE AG Procédé pour la fabrication d'une bande de matériau
WO1998001618A1 (fr) * 1996-07-08 1998-01-15 Scapa Group Plc Feutre a membrane en non-tisse
DE19732994A1 (de) * 1996-08-09 1998-02-12 Scapa Group Plc Filterstruktur und Verfahren zu deren Herstellung
WO1998007925A1 (fr) * 1996-08-24 1998-02-26 Scapa Group Plc Courroies permeables

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6434856B1 (en) 2001-08-14 2002-08-20 The Procter & Gamble Company Variable wet flow resistance drying apparatus, and process of drying a web therewith
US6746573B2 (en) 2001-08-14 2004-06-08 The Procter & Gamble Company Method of drying fibrous structures
CN107604737A (zh) * 2017-10-31 2018-01-19 宿迁市神龙家纺有限公司 一种吸湿透气造纸毛毯及其制备方法
CN107604737B (zh) * 2017-10-31 2019-07-12 宿迁市神龙家纺有限公司 一种吸湿透气造纸毛毯及其制备方法

Also Published As

Publication number Publication date
GB9807703D0 (en) 1998-06-10
EP0990068A1 (fr) 2000-04-05

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