EP0970269B1 - Procede pour produire des monofilaments en polyamide et monofilament pour tissus techniques - Google Patents

Procede pour produire des monofilaments en polyamide et monofilament pour tissus techniques Download PDF

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Publication number
EP0970269B1
EP0970269B1 EP98906784A EP98906784A EP0970269B1 EP 0970269 B1 EP0970269 B1 EP 0970269B1 EP 98906784 A EP98906784 A EP 98906784A EP 98906784 A EP98906784 A EP 98906784A EP 0970269 B1 EP0970269 B1 EP 0970269B1
Authority
EP
European Patent Office
Prior art keywords
monofilament
process according
diameter
monofilaments
mixture
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
EP98906784A
Other languages
German (de)
English (en)
Other versions
EP0970269A1 (fr
Inventor
Werner Haeller
Gérard Lagarrigue
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.)
ExNex AG
Original Assignee
Rhodia Industrial Yarns 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
Application filed by Rhodia Industrial Yarns AG filed Critical Rhodia Industrial Yarns AG
Publication of EP0970269A1 publication Critical patent/EP0970269A1/fr
Application granted granted Critical
Publication of EP0970269B1 publication Critical patent/EP0970269B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/90—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyamides

Definitions

  • the invention relates to a method for producing vacuole-free, heat-protected, round monofilaments made of polyamide for technical fabrics.
  • the object of the invention is to provide a method to ask with which vacuole coarse monofilaments made of light synthetic material for use in fabrics for Carcasses or other textile insert materials in heavy tires can be produced.
  • the object is achieved by solved a process for producing the monofilaments, where the monofilaments are made from a mixture of 75-85% by weight of PA 66 and 15 up to 25 wt .-% PA 6 and the mixture immediately before extruding mixed, spun and directly in a liquid is cooled.
  • the addition of all the heat protection, embedded in the PA-66 polymer granulate has the advantage of good final mixing in the monofilament without any noteworthy Degradation of the polymer and the copper is caused by the Embedding in the polymer prevented, for example on Extruder tube to be sintered.
  • the copper is in the form of a Copper salt used. When copper salt comes preferably a halide such as copper (II) chloride, bromide or iodide in question.
  • PA 66 and PA 6 in Granulate form an extruder, especially one Add degassing extruder.
  • a grain weight of less than 10 mg leads to the most common Feed augers for feeding problems; a grain weight of more than 100 mg leads to a bad one Mixing. It is important to ensure that the Grain size of the granules for PA 66 and PA 6 approximately the same is.
  • a monofilament for technical fabrics with a round one Cross section from 0.8 to 1.5 mm, preferably 0.9 to 1.2 mm and a melting point range of 235-260 ° C is preferred 245 ° C-260 ° C, especially 255 - 260 ° C is especially for Manufacture of fabrics for use in carcasses and Suitable for breakers in tires.
  • Has a round cross section the advantage over a non-round cross-section, that the monofilament is processing calendered fabrics not twisted.
  • a monofilament thickness of ⁇ 0.8 mm has the disadvantages of an insufficient Tear resistance and stability; a monofilament thickness of> 1.5 can no longer be manufactured.
  • Loss of tensile strength 7-day heat treatment at 190 ° C.
  • PA 6 solid Polyamide 6
  • PA 66 solid polyamide 66
  • the PA 66 contains 100 ppm Cu as Heat protection.
  • the mixed polymer granules, with a Grain weight from 14 to 64 mg, is in one Twin screw extruder melted using vacuum moisture is removed from the melt and then carried out.
  • the polymer melt is over a vertically arranged spinning head in a water bath extruded.
  • the diameter of the multi-hole round hole nozzle is 3.4 mm and the extrusion speed is 12.8 m / min.
  • the raw wire is in a water bath, with a distance of 80 mm to the nozzle plate and a temperature of 40 ° C cooled.
  • the monofilament is still hot inside withdrawn from the cooling bath via two delivery rolls and over another cooling section, with a water temperature of 15-20 ° C, fed to a stretching process.
  • the stretching of the monofilament is made in a ratio of 1: 4 to 5 subsequent relaxation.
  • the monofilament according to the invention is particularly suitable for Manufacture of tire reinforcement fabrics and there in Chain insert, but also for paper machine screens in Wet area, as well as suitable for fishing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Claims (6)

  1. Procédé pour la fabrication de monofilaments de polyamide ronds, protégés contre la chaleur, libres de vacuoles, avec un titre de 0.8 à 1.5 mm, pour des tissus techniques, composés d'un mélange de 75 - 85 % en masse de PA 66 et 15 à 25 % en masse de PA 6 qui est réalisé juste avant l'extrusion, filé et directement refroidi dans un liquide.
  2. Procédé selon la revendication 1, caractérisé en ce que le filage est réalisé avec une vitesse de sortie de > 10 m/mn dans au moins un bain de refroidissement avec une température de < 60 °C.
  3. Procédé selon la revendication 1, caractérisé en ce que le PA 66 est protégé contre la chaleur avec au moins 30 ppm de Cu.
  4. Procédé selon la revendication 1, caractérisé en ce que le PA 66 et le PA 6 sont mélangés et incorporés sous forme de granulat dans l'extrudeur.
  5. Procédé selon la revendication 1, caractérisé en ce que le granulat possède une taille de granulé de 10 à 100 mg.
  6. Monofilament fabriqué selon le procédé conforme à la revendication 1, pour des tissus techniques, avec une ténacité supérieure à 40 cN/tex et une perte de force de rupture inférieure à 55 %, caractérisé par un titre rond de 0.8 à 1.5 mm de diamètre et un point de fusion dans le domaine 235 - 260 °C.
EP98906784A 1997-03-20 1998-03-16 Procede pour produire des monofilaments en polyamide et monofilament pour tissus techniques Expired - Lifetime EP0970269B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH66997 1997-03-20
CH66997 1997-03-20
PCT/CH1998/000100 WO1998042900A1 (fr) 1997-03-20 1998-03-16 Procede pour produire des monofilaments en polyamide et monofilament pour tissus techniques

Publications (2)

Publication Number Publication Date
EP0970269A1 EP0970269A1 (fr) 2000-01-12
EP0970269B1 true EP0970269B1 (fr) 2002-09-11

Family

ID=4192397

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98906784A Expired - Lifetime EP0970269B1 (fr) 1997-03-20 1998-03-16 Procede pour produire des monofilaments en polyamide et monofilament pour tissus techniques

Country Status (13)

Country Link
US (1) US6238608B1 (fr)
EP (1) EP0970269B1 (fr)
JP (1) JP2001518152A (fr)
KR (1) KR20000076341A (fr)
AR (1) AR011096A1 (fr)
AT (1) ATE223981T1 (fr)
BR (1) BR9808286A (fr)
DE (1) DE59805514D1 (fr)
DK (1) DK0970269T3 (fr)
EA (1) EA000984B1 (fr)
ID (1) ID22387A (fr)
PT (1) PT970269E (fr)
WO (1) WO1998042900A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080132636A1 (en) * 2004-06-03 2008-06-05 Gilbert Ross Nylon monofilaments and process for preparing nylon monofilaments for the production of spiral fabrics and seam wires
US20060033231A1 (en) * 2004-08-10 2006-02-16 Reuter Rene F Monofilament reinforced rubber component and method of producing
US20080182938A1 (en) * 2007-01-25 2008-07-31 Heping Zhang Toughened monofilaments
EP2597179B1 (fr) * 2011-11-24 2014-01-08 EMS-Patent AG Fibres polymères ignifuges, leur utilisation, ainsi que tissus textiles contenant ces fibres polymères
CN109706565A (zh) * 2019-02-18 2019-05-03 海安县中祥线业有限公司 多公斤级无结线制备工艺
CN114957988A (zh) * 2022-07-14 2022-08-30 四川朗迪新材料有限公司 一种阻燃玻纤增强pa66/pp合金组合物

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA71465B (en) * 1970-02-17 1971-10-27 Du Pont Colorless polyamide compositions and shaped articles stabilized for weatherability
JPS59157314A (ja) * 1983-02-18 1984-09-06 Mitsubishi Chem Ind Ltd ポリアミドモノフイラメントの製造法
DE3601565A1 (de) * 1986-01-21 1987-07-23 Bayer Ag Verfahren zur herstellung von spiralsieben
US5262099A (en) 1992-04-01 1993-11-16 E. I. Du Pont De Nemours And Company Process of making high tenacity polyamide monofilaments
JP3234295B2 (ja) * 1992-08-27 2001-12-04 旭化成株式会社 ポリヘキサメチレンアジパミド繊維の製造方法
JPH0881823A (ja) * 1994-09-08 1996-03-26 Toray Monofilament Co Ltd 延縄用ポリアミドモノフィラメントおよびその製造方法

Also Published As

Publication number Publication date
ATE223981T1 (de) 2002-09-15
US6238608B1 (en) 2001-05-29
DK0970269T3 (da) 2003-09-08
DE59805514D1 (de) 2002-10-17
WO1998042900A1 (fr) 1998-10-01
ID22387A (id) 1999-10-07
EA000984B1 (ru) 2000-08-28
EP0970269A1 (fr) 2000-01-12
BR9808286A (pt) 2000-05-16
JP2001518152A (ja) 2001-10-09
KR20000076341A (ko) 2000-12-26
AR011096A1 (es) 2000-08-02
PT970269E (pt) 2003-03-31
EA199900852A1 (ru) 2000-04-24

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