WO1990013688A1 - Procede pour la fabrication de monofilaments fins et monofilament fabrique selon ce procede - Google Patents

Procede pour la fabrication de monofilaments fins et monofilament fabrique selon ce procede Download PDF

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Publication number
WO1990013688A1
WO1990013688A1 PCT/CH1990/000114 CH9000114W WO9013688A1 WO 1990013688 A1 WO1990013688 A1 WO 1990013688A1 CH 9000114 W CH9000114 W CH 9000114W WO 9013688 A1 WO9013688 A1 WO 9013688A1
Authority
WO
WIPO (PCT)
Prior art keywords
monofilaments
roller
dtex
production
monofilament
Prior art date
Application number
PCT/CH1990/000114
Other languages
German (de)
English (en)
Inventor
Klaus Fischer
Halim Baris
Original Assignee
Viscosuisse Sa
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=4215886&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990013688(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Viscosuisse Sa filed Critical Viscosuisse Sa
Priority to DE59006495T priority Critical patent/DE59006495D1/de
Priority to EP90906103A priority patent/EP0423278B2/fr
Publication of WO1990013688A1 publication Critical patent/WO1990013688A1/fr

Links

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
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching

Definitions

  • the invention relates to a method for producing thermoplastic monofilaments in a titer range of 5-25 dtex, and a monofilament produced by the method.
  • Fine monofilament yarns up to about 33 dtex are spun at spinning speeds below 1000 m/min, cooled with blown air, wound up and stretched separately in a second operation at about 750 m/min.
  • the object of the invention is to provide a method for the production of fine monofilaments which, without a separate stretching process at high winding speeds, achieves and/or improves the properties of known monofilaments.
  • a further object is to vary the method in such a way that the desired properties of the monofilaments can be achieved through the setting parameters of the device.
  • melt-spun filaments are drawn off over an air-cooled rotating roller, spin-finished and wound up at a speed of 4000 to 6000 m/min.
  • the roller as a cooling element, it is possible for the first time to spin monofilaments in the claimed titre range at high speeds. It is also particularly advantageous that the process can be carried out in one stage, i.e. without an additional drafting system. The process is therefore very uncomplicated and, by appropriately varying the roll parameters, such as peripheral speed, distance between spinneret and roll and cooling time, offers a simple prerequisite for influencing the monofilament properties in a targeted manner.
  • the thread properties can also be influenced by means of the peripheral speed of the roller and the distance between the spinneret and the roller.
  • the thermal treatment can be useful to thermally treat the monofilaments in the area between the roller and the winder.
  • the thermal treatment then takes place in an integrated manner at 110-200.degree. C., in particular at 150-170.degree . C., preferably at 150-160.degree.
  • the thermal treatment can be particularly useful in the case of fine monofilaments in order to achieve the properties according to the invention.
  • thermoplastic monofilaments made from, for example, polyesters, polyamides, polyacrylic, polyvinyl fluoride, polyethylene or polypropylene.
  • the roller is made of copper, but it can also be made of another metal with good thermal conductivity, such as aluminum or stainless steel.
  • the roller made of a material with good thermal conductivity can also be surface-coated and can be actively cooled.
  • the monofilament produced according to the method is characterized by a round profile, a boil-off shrinkage of ⁇ 10%, preferably ⁇ 6%, an elongation of ⁇ 40% and a strength of >35 cN/tex.
  • the number of monofilaments that can be produced from a spinneret is not critical for the process according to the invention and is only dependent on the width of the cooling roller and the arrangement of the spools.
  • 1 is a spinning block. Fila ments are denoted by 2, 2′ and 2′′.
  • a roller 3 which can be rotated at a peripheral speed of 800-1600 m/min is followed by an air-cushioned deflection roller 4.
  • a heater 6 can be provided between the deflection roller 4 and the spooler 7.
  • the device 5 for applying a spin finish can be arranged before and/or after the heater 6 .
  • the filaments 2, 2', 2" are drawn off directly from the nozzles of the spinning block 1 by means of the spooler 7 at a speed of 4000 to 6000 m/min and wound onto a number of spools corresponding to the number of filaments.
  • the filaments 2 run , 2', 2" over a part of the rotating surface.
  • the roll 3 itself is not actively cooled.
  • the heat supplied to the roller 3 by the filament 2 is given off to the environment via the comparatively large roller surface.
  • the contact length of the filament 2 is adjusted by means of the deflection roller 4 . Before or after a possible heat treatment by the heater 6, a spin finish is applied to the thread via the device 5.
  • a polyester with a VI of 74 (phenol/dichlorobenzene) was spun as the polymer at extruder temperatures of 275/280/285° C., a melting point of 287 ° C. and a spinning block temperature of 295 ° C.
  • the spinneret characteristics were 2 ⁇ 6/.33/4D and 1 ⁇ 5/.33/4D.
  • the winding speed was 5000 m/min.
  • the peripheral speed of the roll was varied between 800 and 1600 m/min and the distance between spinneret and roll between 60 and 130 cm, depending on the denier.
  • the test parameters and yarn properties are summarized in the following table for 6 dtex Examples 1-6a and 10 dtex Examples 7-14.
  • a particular advantage of the method according to the invention is that fine monofilaments can be produced in a single-stage process at speeds of over 4000 m/min. By varying the roll parameters, monofilaments with high strength, low elongation and low boil-off shrinkage can be produced at high speeds in one step for the first time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Dans un procédé mono-étape pour la fabrication de monofilaments fins thermoplastiques, le refroidissement est effectué par l'intermédiaire de la surface en rotation d'un cylindre de cuivre à des vitesses d'enroulement allant de 4000 à 6000 m/minute. Un monofilament fabriqué selon ce procédé présente, avec un profil rond, un retrait à l'ébullition < 10 %, un allongement < 40 % et une résistance > 35 cN/dtex.
PCT/CH1990/000114 1989-05-01 1990-04-26 Procede pour la fabrication de monofilaments fins et monofilament fabrique selon ce procede WO1990013688A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59006495T DE59006495D1 (de) 1989-05-01 1990-04-26 Verfahren zur herstellung von feinen monofilamenten und monofilament hergestellt nach diesem verfahren.
EP90906103A EP0423278B2 (fr) 1989-05-01 1990-04-26 Procede pour la fabrication de monofilaments fins

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1671/89-0 1989-05-01
CH167189 1989-05-01

Publications (1)

Publication Number Publication Date
WO1990013688A1 true WO1990013688A1 (fr) 1990-11-15

Family

ID=4215886

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1990/000114 WO1990013688A1 (fr) 1989-05-01 1990-04-26 Procede pour la fabrication de monofilaments fins et monofilament fabrique selon ce procede

Country Status (3)

Country Link
EP (1) EP0423278B2 (fr)
DE (1) DE59006495D1 (fr)
WO (1) WO1990013688A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021268A1 (fr) * 1994-02-03 1995-08-10 Massachusetts Institute Of Technology Detection par champ electrique eleve de polymorphisme de temperatures de fusion
US9588109B2 (en) 2007-10-02 2017-03-07 Theranos, Inc. Modular point-of-care devices, systems, and uses thereof

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1268302A (en) * 1969-01-17 1972-03-29 Hoechst Ag Process for the manufacture of crimped filaments of synthetic linear polyamides or copolyamides
US3832435A (en) * 1970-07-03 1974-08-27 Hoechst Ag Process for the manufacture of crimped fibers and filaments of linear high molecular weight polymers
EP0089819A2 (fr) * 1982-03-18 1983-09-28 E.I. Du Pont De Nemours And Company Préparation d'un fil amorphe en polytérephtalate d'éthylène, filé à très haute vitesse, apte à la texturation
EP0224306A2 (fr) * 1985-11-25 1987-06-03 Rhône-Poulenc Viscosuisse SA Procédé et dispositif pour le filage et l'étirage en continu de fibres de polyester
EP0244216A2 (fr) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Fil de polyester de faible cristallinité préparé à très haute vitesse de filage
DE3623748A1 (de) * 1986-07-14 1988-02-18 Groebe Anneliese Dr Schnellgesponnene polyethylenterephthalatfaeden mit neuartigem eigenschaftsprofil, verfahren zu ihrer herstellung und ihre verwendung
WO1989008159A1 (fr) * 1988-02-26 1989-09-08 Viscosuisse Sa Procede et dispositif de fabrication de fils a filaments de polyester amorphes a orientation haute

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1268302A (en) * 1969-01-17 1972-03-29 Hoechst Ag Process for the manufacture of crimped filaments of synthetic linear polyamides or copolyamides
US3832435A (en) * 1970-07-03 1974-08-27 Hoechst Ag Process for the manufacture of crimped fibers and filaments of linear high molecular weight polymers
EP0089819A2 (fr) * 1982-03-18 1983-09-28 E.I. Du Pont De Nemours And Company Préparation d'un fil amorphe en polytérephtalate d'éthylène, filé à très haute vitesse, apte à la texturation
EP0224306A2 (fr) * 1985-11-25 1987-06-03 Rhône-Poulenc Viscosuisse SA Procédé et dispositif pour le filage et l'étirage en continu de fibres de polyester
EP0244216A2 (fr) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Fil de polyester de faible cristallinité préparé à très haute vitesse de filage
DE3623748A1 (de) * 1986-07-14 1988-02-18 Groebe Anneliese Dr Schnellgesponnene polyethylenterephthalatfaeden mit neuartigem eigenschaftsprofil, verfahren zu ihrer herstellung und ihre verwendung
WO1989008159A1 (fr) * 1988-02-26 1989-09-08 Viscosuisse Sa Procede et dispositif de fabrication de fils a filaments de polyester amorphes a orientation haute

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995021268A1 (fr) * 1994-02-03 1995-08-10 Massachusetts Institute Of Technology Detection par champ electrique eleve de polymorphisme de temperatures de fusion
US9588109B2 (en) 2007-10-02 2017-03-07 Theranos, Inc. Modular point-of-care devices, systems, and uses thereof

Also Published As

Publication number Publication date
EP0423278B1 (fr) 1994-07-20
DE59006495D1 (de) 1994-08-25
EP0423278B2 (fr) 1998-04-15
EP0423278A1 (fr) 1991-04-24

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