EP0837165A2 - Méthode pour fabriquer un fil résistant à la chaleur - Google Patents

Méthode pour fabriquer un fil résistant à la chaleur Download PDF

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Publication number
EP0837165A2
EP0837165A2 EP97117582A EP97117582A EP0837165A2 EP 0837165 A2 EP0837165 A2 EP 0837165A2 EP 97117582 A EP97117582 A EP 97117582A EP 97117582 A EP97117582 A EP 97117582A EP 0837165 A2 EP0837165 A2 EP 0837165A2
Authority
EP
European Patent Office
Prior art keywords
fibers
sio
spinning
filaments
nonwoven fabric
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Withdrawn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
EP97117582A
Other languages
German (de)
English (en)
Other versions
EP0837165A3 (fr
Inventor
Claus Dipl.-Ing. Schierz
Martin Dipl.-Ing. Buchfeld
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.)
Asglawo - Stoffe Zum Dammen und Verstarken GmbH
Original Assignee
Asglawo - Stoffe Zum Dammen und Verstarken GmbH
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 Asglawo - Stoffe Zum Dammen und Verstarken GmbH filed Critical Asglawo - Stoffe Zum Dammen und Verstarken GmbH
Publication of EP0837165A2 publication Critical patent/EP0837165A2/fr
Publication of EP0837165A3 publication Critical patent/EP0837165A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/16—Yarns or threads made from mineral substances
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/36—Cored or coated yarns or threads
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads

Definitions

  • the invention relates to a method for producing a heat resistant yarn.
  • Silicon dioxide (SiO 2 ) is a suitable fiber material. It is characterized by a temperature resistance up to 1200 ° C and can be used in continuous operation at temperatures up to 1100 ° C. It has a low thermal conductivity, a high electrical resistance and is chemically resistant. At excess temperatures, no harmful decomposition products arise.
  • Heat-resistant yarns that consist exclusively of SiO 2 filaments are known. It is disadvantageous for numerous applications that the yarns, which consist exclusively of SiO 2 filaments, have a high density and a smooth surface. Attempts to produce bulkier yarns from SiO 2 filaments using texturing devices did not lead to the desired success.
  • Cotton fibers and numerous synthetic fibers for example polyester, polyamide, polypropylene and viscose fibers, can be used as staple fibers. Furthermore, some special fibers, such as fibers made of Kevlar, Nomex, carbon fibers and ceramic (AL 2 or 3 ) fibers, should be usable.
  • the invention has for its object to provide a method for producing a yarn from SiO 2 fibers, which is characterized by a low material density with sufficient tensile strength.
  • the yarn should be voluminous and have a fluffier surface than SiO 2 filament yarns.
  • the SiO 2 fiber fleece is preferably solidified to form the nonwoven by needling.
  • the SiO 2 staple fibers processed to form the nonwoven preferably have a fiber thickness of 5 to 10 micrometers and a fiber length of more than 10 millimeters.
  • the invention begins with the consideration of producing a friction yarn which consists exclusively or at least essentially of silicon dioxide and has a tensile core made of SiO 2 filaments and a voluminous sheath made of SiO 2 staple fibers.
  • a high abrasion resistance of the yarn is desired for the further processing of the yarn according to the invention in the course of the production of woven, knitted, crocheted and laid fabrics.
  • the invention teaches in a further embodiment that the nonwoven fabric is fed to a front section of the card drum in the direction of passage of the filaments and that a fiber sliver made of an abrasion-resistant, flame-resistant fiber material is fed to a rear section of the card drum, the fibers of which contain the SiO 2 - Wrapping fibers as a protective covering.
  • the protective covering preferably consists of polyester fibers, flame-retardant cellulose chemical fibers, high-temperature-resistant organic fibers or a mixture of these fibers.
  • the high-temperature-resistant organic fibers include, in particular, fibers made from fully aromatic polyamides, preferably aramid fibers.
  • the materials mentioned are characterized by good tensile strength and sufficient elasticity and are easy to process in an aerodynamic-mechanical friction spinning process.
  • a sufficient amount of fiber is sufficient, which is relatively small compared to the total amount of fiber processed.
  • the proportion of the protective sheath based on the SiO 2 proportion of the yarn is preferably less than 10 percent by weight.
  • the method according to the invention is characterized in that the abrasion-resistant protective covering takes place in the spinning unit and an additional coating station is not required. The system engineering effort is low.
  • the single figure shows the process diagram and a spinning unit for producing a heat-resistant yarn, which has a core made of SiO 2 filaments, a jacket made of SiO 2 staple fibers and a protective covering made of an abrasion-resistant, flame-retardant fiber material.
  • the spinning unit has two perforated, rotating in the same direction and equipped with suction inserts 1 spinning drums 2 and a card drum 3.
  • the SiO 2 filaments 4 run towards the spinning unit in the axial direction of the spinning drums 2.
  • a nonwoven fabric 5 made of staple SiO 2 fibers formed by carding and mechanical consolidation is fed to a section of the card drum 3 in the forward direction of the filaments 4.
  • the mechanical bonding of the nonwoven fabric 5 preferably consists of needling.
  • the SiO 2 staple fibers of the nonwoven fabric 5 expediently have a fiber thickness of 5 to 10 micrometers and have a fiber length of more than 10 millimeters.
  • the mechanically bonded nonwoven 5 is dissolved again in fibers 6 by means of the card drum 3, the detached fibers 6 being supported by an air stream being deposited in the gusset area between the spinning drums 2 and being turned on by a rolling process on the surface of the spinning drums 2 rotating in the same direction of rotation.
  • the staple fibers 6 wind around the SiO 2 filaments 4 running towards the spinning unit in the axial direction of the spinning drums 2 and form a voluminous sheath made of SiO 2 staple fibers.
  • an unconsolidated fiber sliver 7 made of a more abrasion-resistant fiber material is fed, the fibers of which are detached by means of the card drum 3 and wrap around the jacket formed from SiO 2 staple fibers as a protective covering.
  • the fuse is a loose fiber composite produced on a card. Suitable fiber materials are polyester fibers, flame-retardant cellulose chemical fibers and high-temperature-resistant organic fibers, in particular aramid fibers. These can be used alone or in a mixture.
  • the amount of fibers in the sliver 7 is such that the proportion of the protective sheath based on the SiO 2 proportion of the yarn is less than 10 percent by weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
EP97117582A 1996-10-16 1997-10-10 Méthode pour fabriquer un fil résistant à la chaleur Withdrawn EP0837165A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19642715 1996-10-16
DE1996142715 DE19642715A1 (de) 1996-10-16 1996-10-16 Verfahren zur Herstellung eines hitzebeständigen Garns

Publications (2)

Publication Number Publication Date
EP0837165A2 true EP0837165A2 (fr) 1998-04-22
EP0837165A3 EP0837165A3 (fr) 1999-02-17

Family

ID=7808940

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117582A Withdrawn EP0837165A3 (fr) 1996-10-16 1997-10-10 Méthode pour fabriquer un fil résistant à la chaleur

Country Status (2)

Country Link
EP (1) EP0837165A3 (fr)
DE (1) DE19642715A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270778A1 (fr) * 2001-06-29 2003-01-02 Maschinenfabrik Rieter Ag Procédé et dispositif pour la production de filés de fibres contenant des fibres synthétiques
EP1760175A1 (fr) * 2005-08-31 2007-03-07 Kufner Textilwerke GmbH Fil composite elastique electriquement conducteur, procede de fabrication de ce fil, et produit textile contenant ce fil
CN102251322A (zh) * 2011-07-19 2011-11-23 方鸿亨 摩擦纺纱机纱条吸附凝聚搓捻方法和装置
CN112442774A (zh) * 2020-12-14 2021-03-05 东台市华阳玻纤有限责任公司 用短切玻璃纤维进行混纺包芯纱的工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112458588A (zh) * 2020-12-14 2021-03-09 东台市华阳玻纤有限责任公司 自动添加废弃短切玻纤的混纺包芯纱工艺系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2599762B1 (fr) * 1986-06-04 1988-12-02 Gosse Filature Fil textile resistant au feu et utilisation de ce fil
DE4221001A1 (de) * 1992-06-26 1994-01-05 Frenzelit Werke Gmbh & Co Kg Hochtemperaturbeständiges Garn

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270778A1 (fr) * 2001-06-29 2003-01-02 Maschinenfabrik Rieter Ag Procédé et dispositif pour la production de filés de fibres contenant des fibres synthétiques
EP1760175A1 (fr) * 2005-08-31 2007-03-07 Kufner Textilwerke GmbH Fil composite elastique electriquement conducteur, procede de fabrication de ce fil, et produit textile contenant ce fil
JP2007063742A (ja) * 2005-08-31 2007-03-15 Kufner Textilwerke Gmbh 導電性かつ弾性延伸性ハイブリッド糸、その製造方法及びこの種のハイブリッド糸を用いた織物製品
CN102251322A (zh) * 2011-07-19 2011-11-23 方鸿亨 摩擦纺纱机纱条吸附凝聚搓捻方法和装置
CN112442774A (zh) * 2020-12-14 2021-03-05 东台市华阳玻纤有限责任公司 用短切玻璃纤维进行混纺包芯纱的工艺

Also Published As

Publication number Publication date
DE19642715A1 (de) 1998-04-23
EP0837165A3 (fr) 1999-02-17

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