EP0158710A1 - Toile de machines à papier avec filaments résistants contre l'usure prématurée - Google Patents

Toile de machines à papier avec filaments résistants contre l'usure prématurée Download PDF

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Publication number
EP0158710A1
EP0158710A1 EP19840112830 EP84112830A EP0158710A1 EP 0158710 A1 EP0158710 A1 EP 0158710A1 EP 19840112830 EP19840112830 EP 19840112830 EP 84112830 A EP84112830 A EP 84112830A EP 0158710 A1 EP0158710 A1 EP 0158710A1
Authority
EP
European Patent Office
Prior art keywords
fabric
yarns
wear resistant
yarn
papermaker
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Withdrawn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
EP19840112830
Other languages
German (de)
English (en)
Inventor
Walter Mckinnon Palmer
Thomas Berg Fleischer
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.)
Huyck Corp
Original Assignee
Huyck Corp
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 Huyck Corp filed Critical Huyck Corp
Publication of EP0158710A1 publication Critical patent/EP0158710A1/fr
Withdrawn legal-status Critical Current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
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/0027—Screen-cloths

Definitions

  • This invention relates to papermaker's fabrics and more particularly to a papermaker's fabric having high wear resistant cross machine direction monofilament yarns on the machine side or wear side of the fabric.
  • Forming fabrics for use in papermaking machines usually are in the form of a fine mesh cloth which has been woven endless or otherwise joined into an endless web.
  • the structure of the forming wire is of vital and decisive importance.
  • all forming wires were manufactured from metal wires. These metal-wire cloths were useful in all kinds of papermaking machines and for all paper qualities.
  • the initial synthetic yarns used in papermaker's fabrics were multifilament yarns. These yarns which frequently were made out of nylon were chemically treated in order to improve the wear resistance of the fabric. (See U.S. Patent No. 3,032,441 issued to Beaumont et al.)
  • the introduction of all monofilament fabrics further improved the wear resistance of forming fabrics by virtue of the higher apparent density of the monofilament yarns compared to the multifilament yarns.
  • a further object of the present invention is to provide a papermakers fabric in which the abrasion resistance of the fabric is improved without applying a coating to the fabric.
  • the papermaker's fabric of the present invention is woven from monofilament yarns manufactured from a high wear resistant polyester.
  • the high-wear resistant yarns are produced from a very high viscosity polymer having an intrinsic viscosity higher than the intrinsic viscosity of the manufactured yarns which must be 0.84 or higher.
  • the high-wear resistant yarns are produced using normal extrusion conditions with the polymer temperature increased by about 10°F in order to handle the high viscosity polymer.
  • the papermakers fabric of the present invention which may be a single (Fig. I), double (Fig. 2) or multi-layer fabric, includes high wear resistant polyester yarns in the bottom layer of the fabric.
  • Preferably all or substantially all of the cross-machine direction yarns are composed of or formed of a high viscosity polyester monofilament.
  • the high wear resistant yarns incorporated in the papermaker's fabrics of the present invention are produced from a very high viscosity polyester of intrinsic viscosity over 0.95 with the intrinsic viscosity of the yarns being 0.84 or higher, depending on the extrusion rates.
  • a suitable high viscosity polyester is that marketed by the Goodyear Tire and Rubber Co.
  • the polyester may be mixed with an imide stabilizer and/or Ti0 2 and extruded into a monofilament.
  • the high wear resistant yarns of the present invention may be produced under the same extrusion conditions as regular cross machine direction polyester yarns. The only small adjustment needed is to use a polymer temperature about 10°F higher than normal to handle the high viscosity polymer. Productivities from such production are normal, and the high viscosity polymer costs only a few cents more per pound than regular, normal viscosity polyester polymer.
  • the yarn wire abrasion test schematically shown in Fig. 3, fifteen piano wires are distributed uniformally around a circle having a 7 1/2-inch diameter.
  • the yarn or monofil to be tested is in contact with 90° of the "Squirrel Cage.”
  • the yarns are tensioned with a 1/2 pound weight, and the wires comprising the squirrel cage are rotated at 34 r.p.m. towards the weight.
  • the yarn is stationary and the wires rub along the length of the yarn.
  • a rectangular fabric sample 4 inches by 1/4 inch, is held stationary on a wet rotating papermaker's roll with a 14-inch diameter.
  • the water is added via a spray, and the fabric holder keeps the fabric strip tangential to the roll and provides a controlled pressure on the fabric.
  • the surface speed of the roll is 1000 feet per minute.
  • the test lasts for 10 or 20 minutes depending on fabric weight.
  • the degree of abrasion is determined by the percent lost in tensile strength of the abraded fabric strip compared to the strength of the fabric before abrasion.
  • HWR high wear resistant
  • I.V. Intrinsic Viscosity
  • the yarn was drawn 4.0 x and heat set in an oven at 420°F. on the extrusion line. This yarn had a low modulus of 0.65 gm/decitex for 1% extension and a free shrinkage of 12% in an oven at 392°F.
  • the 0.19mm HWR yarn of Example 1 was evaluated as the cross machine direction yarns in a double layer fabric of the type illustrated in Fig. 2.
  • the strength losses in the fabrics after an identical number of revolutions of the wet roll were:
  • a 0.23mm HWR yarn of 0.87 I.V. was produced from Goodyear polymer 1005A using similar extrusion draws and oven temperature as the yarn of Example 1. This 0.23mm yarn had a modulus of 0.64 and a free shrinkage of 13%.
  • a coarse 0.36mm HWR yarn was obtained from a Goodyear polymer 9501A of I.V. 0.95.
  • the 0.36mm HWR monofil had an I.V. of 0.84, a modulus of 0.61, and a free shrinkage of 15%.
  • the yarn wire abrasion test results for this 0.36mm HWR monofil as compared to a regular 0.36mm monofil were:

Landscapes

  • Woven Fabrics (AREA)
  • Paper (AREA)
  • Artificial Filaments (AREA)
EP19840112830 1984-03-26 1984-10-24 Toile de machines à papier avec filaments résistants contre l'usure prématurée Withdrawn EP0158710A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59335684A 1984-03-26 1984-03-26
US593356 1984-03-26

Publications (1)

Publication Number Publication Date
EP0158710A1 true EP0158710A1 (fr) 1985-10-23

Family

ID=24374398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840112830 Withdrawn EP0158710A1 (fr) 1984-03-26 1984-10-24 Toile de machines à papier avec filaments résistants contre l'usure prématurée

Country Status (4)

Country Link
EP (1) EP0158710A1 (fr)
JP (1) JPS60215892A (fr)
BR (1) BR8500976A (fr)
FI (1) FI844125L (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202869A (en) * 1987-03-19 1988-10-05 Scapa Group Plc Improvements to papermachine and like clothing
EP0342563A2 (fr) * 1988-05-14 1989-11-23 Hoechst Aktiengesellschaft Filaments de polyester résistant à la flexion, leur fabrication et utilisation
EP0351535A2 (fr) * 1988-07-18 1990-01-24 F. Oberdorfer Siebtechnik GmbH Toile pour les machines à papier
WO1990012918A1 (fr) * 1989-04-24 1990-11-01 Albany International Corp. Feutres pour machines a papier
EP0412196A1 (fr) * 1989-04-28 1991-02-13 E.I. Du Pont De Nemours And Company Tissu comfortable de grande résistance
US5894867A (en) * 1994-09-16 1999-04-20 Weavexx Corporation Process for producing paper using papermakers forming fabric
US5899240A (en) * 1994-09-16 1999-05-04 Weavexx Corporation Papermaker's fabric with additional first and second locator and fiber supporting yarns
US5937914A (en) * 1997-02-20 1999-08-17 Weavexx Corporation Papermaker's fabric with auxiliary yarns
US5983953A (en) * 1994-09-16 1999-11-16 Weavexx Corporation Paper forming progess
US6112774A (en) * 1998-06-02 2000-09-05 Weavexx Corporation Double layer papermaker's forming fabric with reduced twinning.
US6123116A (en) * 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6145550A (en) * 1997-08-01 2000-11-14 Weavexx Corporation Multilayer forming fabric with stitching yarn pairs integrated into papermaking surface
US6179013B1 (en) 1999-10-21 2001-01-30 Weavexx Corporation Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
US6244306B1 (en) 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
US6253796B1 (en) 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6585006B1 (en) 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6745797B2 (en) 2001-06-21 2004-06-08 Weavexx Corporation Papermaker's forming fabric
US6837277B2 (en) 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
US6860969B2 (en) 2003-01-30 2005-03-01 Weavexx Corporation Papermaker's forming fabric
US7766053B2 (en) 2008-10-31 2010-08-03 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top CMD yarns
US7931051B2 (en) 2008-01-23 2011-04-26 Weavexx Corporation Multi-layer papermaker's forming fabric with long machine side MD floats
US8251103B2 (en) 2009-11-04 2012-08-28 Weavexx Corporation Papermaker's forming fabric with engineered drainage channels
WO2014139852A1 (fr) * 2013-03-15 2014-09-18 Voith Patent Gmbh Fil monofilament pour un tissu d'habillage de machine à papier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101767900B1 (ko) * 2016-04-19 2017-08-16 주식회사 효성 폴리에틸렌테레프탈레이트 중합체 및 이를 포함하는 원사 및 카매트의 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1814481A1 (de) * 1967-12-14 1969-07-03 Procter & Gamble Herstellung von Geweben aus Polyesterfasern
DE2407952A1 (de) * 1973-04-18 1974-10-31 Albany Int Corp Gewebe fuer wasserentfernung bei der papierherstellung
DE3224236A1 (de) * 1982-06-29 1984-03-08 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verbund-gewebe als bespannung fuer den blattbildungs bereich einer papiermaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1814481A1 (de) * 1967-12-14 1969-07-03 Procter & Gamble Herstellung von Geweben aus Polyesterfasern
DE2407952A1 (de) * 1973-04-18 1974-10-31 Albany Int Corp Gewebe fuer wasserentfernung bei der papierherstellung
DE3224236A1 (de) * 1982-06-29 1984-03-08 Hermann Wangner Gmbh & Co Kg, 7410 Reutlingen Verbund-gewebe als bespannung fuer den blattbildungs bereich einer papiermaschine

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202869A (en) * 1987-03-19 1988-10-05 Scapa Group Plc Improvements to papermachine and like clothing
GB2202869B (en) * 1987-03-19 1991-01-30 Scapa Group Plc Improvements to papermachine and like clothing
EP0342563A3 (fr) * 1988-05-14 1991-04-24 Hoechst Aktiengesellschaft Filaments de polyester résistant à la flexion, leur fabrication et utilisation
EP0342563A2 (fr) * 1988-05-14 1989-11-23 Hoechst Aktiengesellschaft Filaments de polyester résistant à la flexion, leur fabrication et utilisation
EP0351535A2 (fr) * 1988-07-18 1990-01-24 F. Oberdorfer Siebtechnik GmbH Toile pour les machines à papier
EP0351535A3 (fr) * 1988-07-18 1991-01-02 F. Oberdorfer Siebtechnik GmbH Toile pour les machines à papier
US5169499A (en) * 1989-04-24 1992-12-08 Albany International Corp. Paper machine felts of a copolymer of 1,4-dimethylolcyclohexane, terephthalic acid, and isophthalic acid
EP0768395A3 (fr) * 1989-04-24 1998-01-28 Albany International Corp. Feutres pour machines à papier
WO1990012918A1 (fr) * 1989-04-24 1990-11-01 Albany International Corp. Feutres pour machines a papier
EP0412196A1 (fr) * 1989-04-28 1991-02-13 E.I. Du Pont De Nemours And Company Tissu comfortable de grande résistance
US5894867A (en) * 1994-09-16 1999-04-20 Weavexx Corporation Process for producing paper using papermakers forming fabric
US5899240A (en) * 1994-09-16 1999-05-04 Weavexx Corporation Papermaker's fabric with additional first and second locator and fiber supporting yarns
US5983953A (en) * 1994-09-16 1999-11-16 Weavexx Corporation Paper forming progess
US6073661A (en) * 1994-09-16 2000-06-13 Weavexx Corporation Process for forming paper using a papermaker's forming fabric
US5937914A (en) * 1997-02-20 1999-08-17 Weavexx Corporation Papermaker's fabric with auxiliary yarns
US6145550A (en) * 1997-08-01 2000-11-14 Weavexx Corporation Multilayer forming fabric with stitching yarn pairs integrated into papermaking surface
US6112774A (en) * 1998-06-02 2000-09-05 Weavexx Corporation Double layer papermaker's forming fabric with reduced twinning.
US6123116A (en) * 1999-10-21 2000-09-26 Weavexx Corporation Low caliper mechanically stable multi-layer papermaker's fabrics with paired machine side cross machine direction yarns
US6179013B1 (en) 1999-10-21 2001-01-30 Weavexx Corporation Low caliper multi-layer forming fabrics with machine side cross machine direction yarns having a flattened cross section
US6585006B1 (en) 2000-02-10 2003-07-01 Weavexx Corporation Papermaker's forming fabric with companion yarns
US6244306B1 (en) 2000-05-26 2001-06-12 Weavexx Corporation Papermaker's forming fabric
US6253796B1 (en) 2000-07-28 2001-07-03 Weavexx Corporation Papermaker's forming fabric
US6745797B2 (en) 2001-06-21 2004-06-08 Weavexx Corporation Papermaker's forming fabric
US6860969B2 (en) 2003-01-30 2005-03-01 Weavexx Corporation Papermaker's forming fabric
US6837277B2 (en) 2003-01-30 2005-01-04 Weavexx Corporation Papermaker's forming fabric
US7931051B2 (en) 2008-01-23 2011-04-26 Weavexx Corporation Multi-layer papermaker's forming fabric with long machine side MD floats
US7766053B2 (en) 2008-10-31 2010-08-03 Weavexx Corporation Multi-layer papermaker's forming fabric with alternating paired and single top CMD yarns
US8251103B2 (en) 2009-11-04 2012-08-28 Weavexx Corporation Papermaker's forming fabric with engineered drainage channels
WO2014139852A1 (fr) * 2013-03-15 2014-09-18 Voith Patent Gmbh Fil monofilament pour un tissu d'habillage de machine à papier
US9074319B2 (en) 2013-03-15 2015-07-07 Voith Patent Gmbh Monofilament yarn for a paper machine clothing fabric
CN105209681A (zh) * 2013-03-15 2015-12-30 福伊特专利有限公司 用于纸机网毯织物的单丝纱
CN105209681B (zh) * 2013-03-15 2017-07-21 福伊特专利有限公司 用于纸机网毯织物的单丝纱

Also Published As

Publication number Publication date
FI844125L (fi) 1985-09-27
FI844125A0 (fi) 1984-10-19
BR8500976A (pt) 1985-10-29
JPS60215892A (ja) 1985-10-29

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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 FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19851008

17Q First examination report despatched

Effective date: 19860929

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: 19870209

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FLEISCHER, THOMAS BERG

Inventor name: PALMER, WALTER MCKINNON