FI82953B - AVVATTNINGSVIRA. - Google Patents

AVVATTNINGSVIRA. Download PDF

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Publication number
FI82953B
FI82953B FI843727A FI843727A FI82953B FI 82953 B FI82953 B FI 82953B FI 843727 A FI843727 A FI 843727A FI 843727 A FI843727 A FI 843727A FI 82953 B FI82953 B FI 82953B
Authority
FI
Finland
Prior art keywords
yarns
bond
upper layer
lower layer
threaded
Prior art date
Application number
FI843727A
Other languages
Finnish (fi)
Other versions
FI82953C (en
FI843727A0 (en
FI843727L (en
Inventor
Walter Kowar
Original Assignee
Hutter & Schrantz Ag
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3549743&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI82953(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hutter & Schrantz Ag filed Critical Hutter & Schrantz Ag
Publication of FI843727A0 publication Critical patent/FI843727A0/en
Publication of FI843727L publication Critical patent/FI843727L/en
Application granted granted Critical
Publication of FI82953B publication Critical patent/FI82953B/en
Publication of FI82953C publication Critical patent/FI82953C/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663—Multi-layer screening surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4672—Woven meshes
    • 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
    • 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
    • D21F1/0045—Triple layer fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0654—Support layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0659—The layers being joined by needling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/08—Special characteristics of binders
    • B01D2239/083—Binders between layers of the filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Woven Fabrics (AREA)

Description

1 829531 82953

Vedenpoi s tovi i raVedenpoi s tovi i ra

Esillä oleva keksintö kohdistuu vedenpoistoviiraan, joka koostuu vähintään kahdesta loimi- ja kudelankoja sisältävästä kudoskerroksesta, jotka on liitetty toisiinsa erillisillä sidelangoilla.The present invention relates to a dewatering wire consisting of at least two tissue layers comprising warp and weft yarns connected to each other by separate binding yarns.

Tällaisilla vedenpoistoviiroilla on se perustavaa laatua oleva etu, että ylempi, paperimassan kanssa kosketuksessa oleva kerros voi olla hyvin hienoksi kudottu, kun taas alempi kerros, vastaten tehtäväänsä ottaa vastaan mekaanisia rasituksia, voi olla vastaavasti karkeampi.Such dewatering fabrics have the fundamental advantage that the upper layer in contact with the pulp can be very finely woven, while the lower layer, corresponding to its function of absorbing mechanical stresses, can be correspondingly coarser.

Tunnetuilla vedenpoistoviiroilla on kuitenkin se haittapuoli, että ylempi kerros ei ole yläpinnaltaan ehdottomasti tasomainen. Tämä on haitallista etenkin valmistettaessa ohuita, vastaavasti markkeeraukselle herkkiä paperilaatuja, koska alustapinnan tasonvaihtelut aiheuttavat suuremmassa määrässä viirajälkiä.However, known dewatering fabrics have the disadvantage that the upper layer is not necessarily planar in surface. This is particularly detrimental to the production of thin grades of paper that are sensitive to marking, respectively, because variations in the level of the substrate surface cause a greater number of wire marks.

Esillä olevan keksinnön tarkoituksena on aikaansaada edellä mainittua tyyppiä oleva vedenpoistoviira, jolla nämä haittapuolet voidaan välttää. Tämä saavutetaan siten, ja keksinnölle on tunnusomaista se, mitä patenttivaatimuksen 1 tun-nusmerkkiosassa on määritelty. Koska molempien kangaskerrok-sien yhteenliittäminen on suoritettu toisiaan vasten olevilla kerrosten langoilla, ei kankaan lämpökäsittelynkään aikana tapahdu minkäänlaista muutosta ylemmän kerroksen tasossa, koska lankojen kosketuspisteet myös tällöin säilyvät.The object of the present invention is to provide a dewatering wire of the above-mentioned type by which these disadvantages can be avoided. This is thus achieved, and the invention is characterized by what is defined in the characterizing part of claim 1. Since the joining of the two layers of fabric has been carried out with the yarns of the layers facing each other, no change in the plane of the upper layer takes place during the heat treatment of the fabric, since the contact points of the yarns are retained.

Ylemmän kangaskerroksen tasomaisuuden varmistamiseksi on edelleen tarkoituksenmukaista, että alemman kerroksen lankojen pinnat, jotka muodostavat kannatuspisteitä sidelangoilla kiinnitetyille ylemmän kerroksen langoille, sijaitsevat yhdessä tasossa.In order to ensure the flatness of the upper fabric layer, it is further expedient that the surfaces of the lower layer yarns, which form support points for the upper layer yarns fastened with the binding yarns, are located in one plane.

Claims (1)

2 82953 Keksinnön erään toisen suoritusmuodon mukaan ovat sidelangat kudelankoja sekä muodostuvat erittäin joustavasta materiaalista, esim. polyamidista. Kahden tai useamman kerroksen yhteenliittäminen kudelangoilla on kudontateknisesti yksinkertaista ja sidelankojen suuren joustavuuden ansiosta voidaan myöskin lämpökiinnityksessä ylläpitää edullinen sidonta. Keksintöä selostetaan seuraavassa lähemmin viitaten piirustuksissa esitettyihin suoritusesimerkkeihin. Näissä kukin kuvio esittää keksinnön mukaisen viiran poikkileikkausta. Kuvion 1 mukaisessa suoritusesimerkissä käsittää ylempi kerros 1 yksinkertaisen sidonnan ja alempi kerros 2 neli-niitisen sidonnan. Ylemmässä kerroksessa on loimilankoja 3 ja kudelankoja 4, alemmassa kerroksessa loimilankoja 5 ja kudelankoja 6. Langat 5 ja 6 ovat tunnetulla tavalla vahvempia kuin langat 3 ja 4. Myös kuvion 2 mukaisessa esimerkissä on ylempi kerros 1 varustettu yksinkertaisella sidoksella. Alempi kerros 2 käsittää kuitenkin kolminiitisen toimikassidoksen. Ylemmässä kerroksessa 1 on kuvion 3 mukaan kolminiitinen toimikassidos, ja alempi kerros 2 esittää neliniitisen sidonnan. Kerroksien 1 ja 2 yhteenliittämiseksi on järjestetty side-lankoja 7, jotka ovat kudelankoja. Nämä sidelangat 7 on sijoitettu niin, että ylemmän kerroksen langat 3', joiden yli sidelangat 7 kulkevat, ovat suorassa kosketuksessa alemman kerroksen 2 langan 5' kanssa. Lankojen 3' ja 5' kosketuspisteet ovat täten yhdessä tasossa E.2 82953 According to another embodiment of the invention, the binding yarns are weft yarns and consist of a highly flexible material, e.g. polyamide. The joining of two or more layers with weft yarns is technically simple in weaving, and thanks to the high flexibility of the bonding yarns, it is also possible to maintain an advantageous bond in the thermal fastening. The invention will be described in more detail below with reference to the exemplary embodiments shown in the drawings. In these, each figure shows a cross section of a wire according to the invention. In the embodiment according to Figure 1, the upper layer 1 comprises a single bond and the lower layer 2 a four-rivet bond. The upper layer has warp yarns 3 and weft yarns 4, the lower layer has warp yarns 5 and weft yarns 6. The yarns 5 and 6 are known to be stronger than the yarns 3 and 4. Also in the example according to Fig. 2 the upper layer 1 is provided with a simple bond. However, the lower layer 2 comprises a three-threaded twill bond. As shown in Figure 3, the upper layer 1 has a three-threaded twine bond, and the lower layer 2 shows a four-threaded bond. Bonding yarns 7, which are weft yarns, are provided for joining the layers 1 and 2. These binder yarns 7 are arranged so that the yarns 3 'of the upper layer, over which the binder yarns 7 pass, are in direct contact with the yarn 5' of the lower layer 2. The points of contact of the wires 3 'and 5' are thus in one plane E.
FI843727A 1983-09-22 1984-09-21 AVVATTNINGSVIRA FI82953C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT338683 1983-09-22
AT0338683A AT382653B (en) 1983-09-22 1983-09-22 DRAINAGE SCREEN FOR PAPER MACHINES AND THE LIKE

Publications (4)

Publication Number Publication Date
FI843727A0 FI843727A0 (en) 1984-09-21
FI843727L FI843727L (en) 1985-03-23
FI82953B true FI82953B (en) 1991-01-31
FI82953C FI82953C (en) 1993-04-27

Family

ID=3549743

Family Applications (1)

Application Number Title Priority Date Filing Date
FI843727A FI82953C (en) 1983-09-22 1984-09-21 AVVATTNINGSVIRA

Country Status (4)

Country Link
EP (1) EP0136284B1 (en)
AT (1) AT382653B (en)
DE (1) DE3481850D1 (en)
FI (1) FI82953C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593525A1 (en) * 1986-01-30 1987-07-31 Applic Realisa Tissus Indl Complex fabrics specially designed for shaping
CA1277209C (en) * 1986-11-28 1990-12-04 Dale B. Johnson Composite forming fabric
US4705601A (en) * 1987-02-05 1987-11-10 B.I. Industries, Inc. Multi-ply paper forming fabric with ovate warp yarns in lowermost ply
FI81624C (en) * 1988-12-08 1990-11-12 Tamfelt Oy Ab PAPPERSMASKINDUK.
GB9413341D0 (en) * 1994-07-02 1994-08-24 Scapa Group Plc Fabric
NO310100B1 (en) * 1999-05-14 2001-05-21 Thor Bjoernstad Two-layer screen cloth and method of manufacture thereof
US20080096848A1 (en) * 2004-09-29 2008-04-24 Cytovia Inc. Substituted N-Aryl-9-Oxo-9H-Fluorene-1-Carboxamides and Analogs as Activators of Caspases and Inducers of Apoptosis
DE102010017055A1 (en) 2010-05-21 2011-11-24 Andritz Technology And Asset Management Gmbh forming wire
DE102011054163B3 (en) * 2011-10-04 2013-02-28 ANDRITZ KUFFERATH GmbH papermaker
DE102013106327B4 (en) 2013-06-18 2015-01-08 Andritz Technology And Asset Management Gmbh papermaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127308A (en) * 1964-03-31 Dual wire dewatering apparatus
DE731243C (en) * 1934-10-26 1943-02-04 Geraer Filztuchfabrik Lechla & Drying felt
DE2455184A1 (en) * 1973-11-21 1975-05-22 Slaughter Philip H Fourdrinier screen woven fabric - formed by two superposed woven layers interconnected by warp yarns
SE420852B (en) * 1978-06-12 1981-11-02 Nordiskafilt Ab The forming fabric
DE3036409C2 (en) * 1980-09-26 1983-01-20 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Double-layer screen for the screen part of a paper machine
DE3305713C1 (en) * 1983-02-18 1984-04-19 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Composite fabric as covering for the sheet forming part of a paper machine

Also Published As

Publication number Publication date
AT382653B (en) 1987-03-25
FI82953C (en) 1993-04-27
DE3481850D1 (en) 1990-05-10
EP0136284A3 (en) 1987-06-24
ATA338683A (en) 1986-08-15
EP0136284B1 (en) 1990-04-04
EP0136284A2 (en) 1985-04-03
FI843727A0 (en) 1984-09-21
FI843727L (en) 1985-03-23

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Owner name: HUTTER & SCHRANTZ AG