EP0038276A1 - Nassfilz für die Papierherstellung - Google Patents

Nassfilz für die Papierherstellung Download PDF

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Publication number
EP0038276A1
EP0038276A1 EP81420056A EP81420056A EP0038276A1 EP 0038276 A1 EP0038276 A1 EP 0038276A1 EP 81420056 A EP81420056 A EP 81420056A EP 81420056 A EP81420056 A EP 81420056A EP 0038276 A1 EP0038276 A1 EP 0038276A1
Authority
EP
European Patent Office
Prior art keywords
threads
warp
yarns
weft
constituting
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.)
Withdrawn
Application number
EP81420056A
Other languages
English (en)
French (fr)
Inventor
Pierre Marqueste
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.)
Louis Binet & Cie Ets
Original Assignee
Louis Binet & Cie Ets
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 Louis Binet & Cie Ets filed Critical Louis Binet & Cie Ets
Publication of EP0038276A1 publication Critical patent/EP0038276A1/de
Withdrawn legal-status Critical Current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
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Definitions

  • the present invention relates to a wet felt for stationery
  • the present invention relates to a wet felt for stationery.
  • the wet felts are intended to receive the sheet of paper leaving the forming section; they are arranged in endless bands surrounding the series of pressure rollers equipping the pressing section in which is removed a new part of the water contained in the sheet already formed, but still very sensitive to any mechanical action; it is therefore essential that the felt is likely to facilitate as much as possible the flow of the water expressed from the sheet of paper under the pressure line of the pressure rollers without destroying, marking or marbling the surface of the sheet of paper .
  • Stationery felts usually consist of a canvas woven from a warp and weft in mono- or multifilament of synthetic material or in textile threads, sandwiched between two layers of natural and / or synthetic fibers which it is made integral by needling.
  • the object of the present invention is to mediate these drawbacks by proposing a new felt for stationery which, while allowing better flow of water under the nip line of the pressure rollers, has a dimensional stability much greater than that of felts of the conventional type in which a sheet of warp yarns and a web of weft yarns are sandwiched between two veils of fibers to which they are made integral by needling.
  • a wet felt for stationery of the type comprising a central canvas made up of series of threads not linked together but provisionally assembled by a destructible wire and whose originality consists in that the central canvas consists of two superimposed layers of warp yarns located on either side of a weft son ply, which is substantially perpendicular to them.
  • the yarns constituting the warp and the weft are chosen from monofilaments, multifilaments, assemblies of mono- and multifilaments, simple or twisted, or textile yarns, and are preferably yarns of polyamide.
  • the threads constituting the lower warp, on the paper side, and the threads constituting the central weft are of the same nature and size and are assemblies of monofilaments, and the threads constituting the upper warp are finer yarns chosen from non-twisted strands of multifilaments and combinations of carded yarns and continuous multifilaments.
  • the yarns constituting the upper warp and the central weft are of the same type and size and are assemblies of monofilaments, and the yarns constituting the lower warp are twists of monofilament at least two to three times larger as the so-called monofilament assemblies.
  • Provisional assembly of the warp yarn plies to the weft yarn ply can be ensured, as it is known per se, by a soluble thread which is then easily removed after needling of the fiber webs on either side of the canvas, by simple passage through an appropriate solvent.
  • the provisional assembly of the plies of warp threads to the ply of weft threads can also be advantageously carried out using fibrillated threads of synthetic material with a low melting point, the destruction of which is ensured by the mechanical operation of needling of the fiber webs on either side of the canvas followed by a heat treatment at a temperature higher than the melting point of said fibrillated yarns.
  • FIGS. 2 represents the ply of lower warp threads corresponding to the reverse side of the felt
  • 3 the ply of weft threads
  • 4 generally designates the needled fiber sails on either side of the canvas formed by the threads. warp and weft threads.
  • the conventional felts consist of a canvas made up of a ply of warp threads 2 arranged in the longitudinal direction and corresponding to the reverse face of the felt 5 and of a ply of threads of weft 3 arranged perpendicularly to and above the warp threads 2.
  • the plies of threads 2 and 3 are provisionally assembled by a soluble thread (not shown) and made integral by needling with the fiber webs 4.
  • the felt 6 according to the invention is distinguished from the preceding felt by the presence of the ply of warp threads 7 disposed above the ply of weft threads 3 perpendicular to the latter and corresponding to the "paper" face of the felt. , and substantially in coincidence with the ply of warp threads 2, the plies 2, 3 and 7 being temporarily assembled by a destructible wire (not shown).
  • the threads constituting the warp 2 and the weft 3 are constituted by assemblies of polyamide monofilaments from 0.15 to 0.30 mm in diameter, twisted by 2, by 4 or by 6 or 9, to give a thread of 0, 1 to 0.35 mm in diameter.
  • the threads constituting the chain 7 can be similar to the threads constituting the chain 2. But, in order to increase on the one hand the ability to flow of water, and on the other hand the incompressibility of the felt, they are preferably less coarse than the threads constituting the chain 2. Thus it can be non-twisted strands of polyamide threads of 1800 to 2800 dtex or composite assemblies comprising a carded thread of 1600 dtex of polyamide 6 dtex associated, during spinning, with a continuous polyamide yarn of 940 dtex, these values being given by way of example.
  • the threads constituting the warp 7 and the weft 3 are constituted by the assemblies of polyamide monofilaments of the type described above and the threads constituting the warp 2 are monofilaments twisted from 0.3 to 0, 90 mm in diameter.
  • the provisional assembly of the two plies of warp threads 2 and 7 to the ply of weft threads 3 can be carried out in a manner known per se using soluble threads, such as a multifilament polyvinyl alcohol thread of 980 dtex, yarn which can easily be removed subsequently by treatment in water at room temperature after needling the scrim according to the invention with fiber veils 4.
  • soluble threads such as a multifilament polyvinyl alcohol thread of 980 dtex
  • this temporary assembly can also be advantageously carried out using fibrillated polypropylene yarns of a title less than 1000 dtex.
  • the destruction of these threads initiated during the needling operation of the fiber webs 4 on the canvas according to the invention, an operation which partially shreds them, is completed by a subsequent heat treatment of the felt at a temperature between 160 and 180 ° C.
  • the fiber veils 4 are conventionally made of any suitable natural or synthetic fibers; these are, as a general rule, sails 2 to 3 mm thick made integral by conventional needling with the cavenas according to the invention.
  • the present invention cannot be limited to the single embodiment described above by way of example. It embraces, on the contrary, all the variant embodiments, whatever in particular the nature and the mode of connection of the threads responsible for ensuring the temporary connection of the two layers of warp threads to the weft thread ply and the nature and the thickness of the needled fiber sails on the canvas.

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  • Paper (AREA)
EP81420056A 1980-04-16 1981-04-14 Nassfilz für die Papierherstellung Withdrawn EP0038276A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8008939 1980-04-16
FR8008939A FR2482147A1 (fr) 1980-04-16 1980-04-16 Feutre humide pour papeterie

Publications (1)

Publication Number Publication Date
EP0038276A1 true EP0038276A1 (de) 1981-10-21

Family

ID=9241174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81420056A Withdrawn EP0038276A1 (de) 1980-04-16 1981-04-14 Nassfilz für die Papierherstellung

Country Status (2)

Country Link
EP (1) EP0038276A1 (de)
FR (1) FR2482147A1 (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186900A2 (de) * 1985-01-02 1986-07-09 Albany International Corp. Mehrlagiger Pressfilz
DE4002761A1 (de) * 1990-01-31 1991-08-01 Heimbach Gmbh Thomas Josef Pressfilz
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung
EP0947627A1 (de) * 1998-04-01 1999-10-06 Thomas Josef Heimbach GmbH & Co. Maschinenfilz sowie Verfahren zu dessen Herstellung
DE10204356C1 (de) * 2002-02-01 2003-08-07 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere Preßfilz sowie ein Verfahren zur Herstellung der Papiermaschinenbespannung
DE10204357A1 (de) * 2002-02-01 2003-08-14 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere Preßfilz
WO2005075734A1 (en) * 2004-02-03 2005-08-18 Tamfelt Oyj Abp Press belt
CN100376746C (zh) * 2005-11-09 2008-03-26 成都环龙工业用呢有限责任公司 三层无交织底网造纸压榨毛毯
CN104894908A (zh) * 2014-03-05 2015-09-09 上海金熊造纸网毯有限公司 一种经纬纱无交织造纸毛毯及其制备方法
CN106676937A (zh) * 2016-10-23 2017-05-17 郑建灵 一种造纸毛毯

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB915159A (en) * 1960-05-16 1963-01-09 Michelin & Cie Improvements in and relating to conveyor belts
FR1571179A (de) * 1967-06-30 1969-06-13
US3458911A (en) * 1967-03-17 1969-08-05 Orr Felt & Blanket Co The Method of making papermakers' felt
FR1599839A (de) * 1967-12-09 1970-07-20
DE2832054A1 (de) * 1978-05-18 1979-11-22 Beloit Corp Endloses druckband aus elastomerem werkstoff zum laengsweisen verdichten einer materialbahn

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB915159A (en) * 1960-05-16 1963-01-09 Michelin & Cie Improvements in and relating to conveyor belts
US3458911A (en) * 1967-03-17 1969-08-05 Orr Felt & Blanket Co The Method of making papermakers' felt
FR1571179A (de) * 1967-06-30 1969-06-13
FR1599839A (de) * 1967-12-09 1970-07-20
DE2832054A1 (de) * 1978-05-18 1979-11-22 Beloit Corp Endloses druckband aus elastomerem werkstoff zum laengsweisen verdichten einer materialbahn

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0186900A2 (de) * 1985-01-02 1986-07-09 Albany International Corp. Mehrlagiger Pressfilz
EP0186900A3 (en) * 1985-01-02 1986-08-13 Albany International Corp. Multilayered press felt
DE4002761A1 (de) * 1990-01-31 1991-08-01 Heimbach Gmbh Thomas Josef Pressfilz
DE4040861A1 (de) * 1990-12-20 1992-07-02 Munzinger Conrad & Cie Ag Pressfilz sowie verfahren zu dessen herstellung
DE4040861C3 (de) * 1990-12-20 2001-02-01 Conrad Munzinger & Cie Ag Olte Preßfilz sowie Verfahren zu dessen Herstellung
EP0947627A1 (de) * 1998-04-01 1999-10-06 Thomas Josef Heimbach GmbH & Co. Maschinenfilz sowie Verfahren zu dessen Herstellung
US6283165B1 (en) 1998-04-01 2001-09-04 Thomas Josef Heimbach Gesellschaft Mit Beschrankter Haftung & Co. Machine felt and process for its production
DE10204357A1 (de) * 2002-02-01 2003-08-14 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere Preßfilz
DE10204356C1 (de) * 2002-02-01 2003-08-07 Heimbach Gmbh Thomas Josef Papiermaschinenbespannung, insbesondere Preßfilz sowie ein Verfahren zur Herstellung der Papiermaschinenbespannung
US7101404B2 (en) 2002-02-01 2006-09-05 Heimbach Gmbh & Co. Paper machine clothing, especially press felt, as well as a method for manufacturing the paper machine clothing
DE10204357B4 (de) * 2002-02-01 2006-10-26 Thomas Josef Heimbach Gmbh & Co. Preßfilz
WO2005075734A1 (en) * 2004-02-03 2005-08-18 Tamfelt Oyj Abp Press belt
CN1914373B (zh) * 2004-02-03 2010-05-05 坦姆菲尔特Pmc有限公司 压带
US8012055B2 (en) 2004-02-03 2011-09-06 Tamfelt Pmc Oy Press belt
CN100376746C (zh) * 2005-11-09 2008-03-26 成都环龙工业用呢有限责任公司 三层无交织底网造纸压榨毛毯
CN104894908A (zh) * 2014-03-05 2015-09-09 上海金熊造纸网毯有限公司 一种经纬纱无交织造纸毛毯及其制备方法
CN106676937A (zh) * 2016-10-23 2017-05-17 郑建灵 一种造纸毛毯

Also Published As

Publication number Publication date
FR2482147A1 (fr) 1981-11-13

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

17P Request for examination filed

Effective date: 19810915

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19830717

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MARQUESTE, PIERRE