EP0694637B1 - Tissu d'habillage pour machines à papier ou similaires - Google Patents

Tissu d'habillage pour machines à papier ou similaires Download PDF

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Publication number
EP0694637B1
EP0694637B1 EP95890119A EP95890119A EP0694637B1 EP 0694637 B1 EP0694637 B1 EP 0694637B1 EP 95890119 A EP95890119 A EP 95890119A EP 95890119 A EP95890119 A EP 95890119A EP 0694637 B1 EP0694637 B1 EP 0694637B1
Authority
EP
European Patent Office
Prior art keywords
fabric
weft
layer
paper machine
wefts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95890119A
Other languages
German (de)
English (en)
Other versions
EP0694637A1 (fr
Inventor
Harald Ing. Gampe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cristini Forming Fabrics GmbH
Original Assignee
Hutter & Schrantz Papiermaschinensiebe Gesmbh
Hutter & Schrantz Papiermaschi
Hutter & Schrantz Papiermaschinensiebe Gesmbh
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 Hutter & Schrantz Papiermaschinensiebe Gesmbh, Hutter & Schrantz Papiermaschi, Hutter & Schrantz Papiermaschinensiebe Gesmbh filed Critical Hutter & Schrantz Papiermaschinensiebe Gesmbh
Publication of EP0694637A1 publication Critical patent/EP0694637A1/fr
Application granted granted Critical
Publication of EP0694637B1 publication Critical patent/EP0694637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths
    • D21F1/0036—Multi-layer screen-cloths

Definitions

  • the invention relates to a fabric for use as paper machine clothing or the like, consisting of at least three layers of Weft threads that are tied by a bevy of warp threads, the The middle weft layer (s) are integrated with the same warp thread system that also binds the top and bottom weft
  • the weft threads at least one Middle layer are made of a material that is a thermal shrink of at least 10% at 180 ° C.
  • the "straight" position of the invention enables at least one middle one Shot position an improvement of all multi-layer constructions of this type in Regarding their use in the paper machine. Due to the stretched location of the Monofilaments of the middle weft layer contribute to a higher total drainage performance of the multi-layer fabric; a "curved position" of the Weft monofilament leads to a partial narrowing of the drainage channels and thus a reduction in permeability. To increase permeability So far it was necessary to achieve either the number of shots or the Reduce monofilament diameter. These measures often resulted Losses in terms of abrasion volume, number of wearing points, stability, etc. It results accordingly a higher permeability despite maintaining the basic Fabric parameters (warp number, weft number, diameter of the monofilament, ...)
  • the heat-setting process of the multi-layer fabric results in an overall higher shrinkage than when using material types with the usual ones physical parameters.
  • the improved stability is due to the fact that the warp monofilaments (longitudinal threads) are closer to each other and to each other support. Furthermore, the monofilaments of this middle layer are much more stretched in the bandage and are stiffer, which also increases stability.
  • the higher shrinkage means that for the middle layer used weft monofilament for the lower weft position a greater curvature of the thread and thus a larger weft overhang on the barrel side.
  • the running side Shot overhang which is the level difference between the barrel side Specifying the weft knuckle and the ankle of the warp monofilament is a measure of that expected runtime when using the fabric in the paper machine or the like. If the basic tissue parameters are constant, this value can also as a comparison value between two fabrics of the same construction be used. In this case, a fabric with a higher one barrel-side shot protrusion with a longer running time to be aimed for preferable.
  • the invention is based on one shown in the drawing Embodiment of the invention explained in more detail without this Embodiment to be limited.
  • 1 is a section of a Fabric shown according to the invention and
  • Fig. 2 shows the section of a known fabric.
  • barrel side projection 5 at 1 according to the invention is larger than the weft projection on the barrel side 5 'in the known fabric according to FIG. 2.
  • the type of binding can be varied in many ways.
  • fabrics with more than a middle weft monofilament layer applies that at least one of the middle layers is approximately stretched in the tissue association.

Landscapes

  • Paper (AREA)
  • Woven Fabrics (AREA)
  • Laminated Bodies (AREA)

Claims (1)

  1. Tissu utilisé comme entoilage pour une machine à papier ou l'équivalent, composé d'au moins trois couches (1, 2, 3) de fils de trame liées par un assemblage de fils de chaíne (4), le liage de la (des) couche(s) de trame médiane(s) (2) se faisant avec le même système de fils de chaíne qui lie les couches de trame supérieure (1) et inférieure (3), les fils de trame d'au moins une couche médiane (2) se trouvant à l'état à peu près étiré dans le système structurel, après l'opération de thermofixage, caractérisé en ce que ces fils de trame d'au moins une couche médiane (2) se composent d'un matériau qui présente un retrait thermique d'au moins 10 % à 180 °C.
EP95890119A 1994-07-01 1995-06-27 Tissu d'habillage pour machines à papier ou similaires Expired - Lifetime EP0694637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0130394A AT400854B (de) 1994-07-01 1994-07-01 Gewebe zum einsatz als papiermaschinenbespannung
AT1303/94 1994-07-01

Publications (2)

Publication Number Publication Date
EP0694637A1 EP0694637A1 (fr) 1996-01-31
EP0694637B1 true EP0694637B1 (fr) 1998-11-25

Family

ID=3510973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95890119A Expired - Lifetime EP0694637B1 (fr) 1994-07-01 1995-06-27 Tissu d'habillage pour machines à papier ou similaires

Country Status (3)

Country Link
EP (1) EP0694637B1 (fr)
AT (2) AT400854B (fr)
DE (1) DE59504309D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19859582A1 (de) * 1998-12-22 2000-06-29 Voith Fabrics Heidenheim Gmbh Drei- oder mehrlagiges Papiermaschinensieb in Form eines Verbundgewebes

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH659676A5 (de) * 1981-11-15 1987-02-13 Siebtuchfabrik Ag Einlagiges papiermaschinensieb.
US4642261A (en) * 1984-12-21 1987-02-10 Unaform Inc. Papermakers fabric having a tight bottom weft geometry
AT386026B (de) 1986-05-15 1988-06-27 Hutter & Schrantz Ag Mehrlagiges gewebe aus kunststoffmonofilamenten
US5324392A (en) * 1989-04-18 1994-06-28 Nippon Filcon Co., Ltd. Extendable and heat shrinkable polyamide mono-filament for endless fabric and endless fabric
AT393521B (de) 1990-05-08 1991-11-11 Hutter & Schrantz Ag Gewebe aus kunststoff-monofilamenten fuer den einsatz als entwaesserungssieb einer papiermaschine
AT394869B (de) * 1990-10-25 1992-07-10 Hutter & Schrantz Ag Gewebe zum einsatz als papiermaschinenbespannung
DE4232319A1 (de) * 1992-09-26 1994-03-31 Franz F Kufferath Mehrlagiges Pressensieb für Naßpressen einer Papiermaschine

Also Published As

Publication number Publication date
DE59504309D1 (de) 1999-01-07
ATE173772T1 (de) 1998-12-15
ATA130394A (de) 1995-08-15
AT400854B (de) 1996-04-25
EP0694637A1 (fr) 1996-01-31

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