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WO1990002222A1 - Dispositif de filature a chaud avec des vitesses de devidement elevees, et filament produit au moyen de ce dispositif - Google Patents

Dispositif de filature a chaud avec des vitesses de devidement elevees, et filament produit au moyen de ce dispositif Download PDF

Info

Publication number
WO1990002222A1
WO1990002222A1 PCT/CH1989/000147 CH8900147W WO9002222A1 WO 1990002222 A1 WO1990002222 A1 WO 1990002222A1 CH 8900147 W CH8900147 W CH 8900147W WO 9002222 A1 WO9002222 A1 WO 9002222A1
Authority
WO
WIPO (PCT)
Prior art keywords
spinning
thread
melt
spinning chamber
chamber
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.)
Ceased
Application number
PCT/CH1989/000147
Other languages
German (de)
English (en)
Inventor
Horst Martin
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.)
Viscosuisse SA
Original Assignee
Viscosuisse SA
Societe de la Viscose Suisse 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=4249607&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1990002222(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Viscosuisse SA, Societe de la Viscose Suisse SA filed Critical Viscosuisse SA
Priority to BR898907063A priority Critical patent/BR8907063A/pt
Priority to EP89908959A priority patent/EP0396646B2/fr
Publication of WO1990002222A1 publication Critical patent/WO1990002222A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Definitions

  • the invention relates to a device for melt spinning at take-off speeds above 5000 m / min, consisting of a spinning block, with a spinneret pack and a thread suction nozzle and a filament produced by the method.
  • Thread extraction nozzles for thread cooling in melt spinning at speeds above 5000 m / min are known. On the one hand, they suck in the threads and, on the other hand, they serve to supply the threads with a cooling gas parallel to them.
  • such a nozzle is used in connection with a heating chamber, the heating chamber being mounted directly under the spinning block.
  • EP-A-0 244 217 also describes the use of such a nozzle for the same purpose in connection with a Venturi nozzle operated with a hot gas.
  • the Venturi nozzle is also located directly under the spinning block.
  • Both the heating chamber and the hot gas-powered Venturi nozzle serve, among other things, to improve spinning and thread properties. As far as the thread properties are concerned, these have a positive influence on the dyeability.
  • the thread suction nozzle for thread cooling is located between 50 and 600 mm below it in the case of the heating chamber and at a sufficient distance below it in the case of the Venturi nozzle that the air escaping there does not impair the operation of the same. The threads get in there as an open bundle and are still quite fluid on their way there due to the delayed thread cooling, i.e. little solidified.
  • the object of the invention is to provide a device which allows the titer regularity and the strength of a very quickly spun filament to be improved.
  • Another task is to reduce the energy-intensive operation of a heating chamber or the likewise energy-intensive specific hot air consumption.
  • the object is achieved in a device according to claim 1, which is characterized in that a spinning chamber is arranged between the spinneret pack and the thread suction nozzle. Due to the arrangement according to the invention, a suppression is created in the spinning chamber, which specifically draws in cooling air from the environment and which surprisingly achieves an excellent titer regularity along the resulting thread.
  • the spinning chamber is attached in a gas-tight manner with its inlet opening on the spinning block and with its outlet opening on the thread suction nozzle.
  • the attachment is carried out in a known manner and using sealing material.
  • the formation of the bottom of the spinning chamber into a funnel has advantages in terms of air flow.
  • the spinning chamber essentially consists of a tube which is closed at its periphery and which is designed as a sieve tube only in a specific area, specifically from 150 to 350 mm, in particular from 200 to 300 mm, from the spinneret pack.
  • the perforated area can be provided with any openings for the gas passage.
  • the air permeability of the sieve tube should be 20 to 40%, ie the perforated surface should have openings of 20 to 40%.
  • a filament produced with the device according to the invention has an uneven titer of ⁇ 0.60% Uster.
  • Fig. 1 shows a scheraatic spinning device with the spinning chamber according to the invention
  • a spinning block is denoted by 1.
  • a spinneret pack 2 is provided in a slightly reset manner.
  • Spinneret pack 2 has a gas-permeable ring designated as sieve tube 4.
  • the lower part of the spinning chamber 3 is formed into a funnel 6 and is dimensioned such that the filaments 5 emerging from the spinneret pack 2 cannot touch the wall of the spinning chamber 3.
  • a thread suction nozzle is connected gas-tight to the apex of the funnel 6 and is provided in the convergence point of the filament bundle.
  • a melt-spinnable granulate is melted in the spinning block 1 in a known manner and is tensioned into filaments 5 by the spinneret pack 2.
  • the suction of the Eadenabsaugdüse 7 ent there is an oppression in the spinning chamber 3.
  • room air flows through the sieve tube 4 of the spinning chamber 3 and cools the filaments 5, which are drawn off at high speed by means of the spool 10.
  • the filaments 5 Before the filaments 5 are wound onto the bobbin 10, they pass through the thread oiler 8 and the swirling nozzle 9.
  • a polyester granulate with an intrinsic viscosity (IV) of 0.62 dl / g is melted at 298 ° C in spin block 1, spun into 24 filaments with a total density of 50 dtex at a take-off speed of 5500 m / min.
  • the spinning chamber was 460 mm long and perforated between 150 and 250 mm below the nozzle plate with a permeability of 38%.
  • the thread suction nozzle 7 was subjected to an air pressure of 1 bar and indicated an air consumption of 5.6 Nm 3 / h. After leaving the thread suction nozzle 7, the thread was provided with a spin finish and swirled in a known manner.
  • the table shows that a filament thread produced with the device according to the invention has a significant improvement in yarn cleanliness and an increase in strength.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

Un dispositif de filature à chaud comporte une chambre de filature (3) sensiblement fermée montée de manière étanche aux gaz entre un faisceau de filières (2) et un dispositif d'aspiration des mèches cassées (7). La chambre de filature est partiellement ajourée uniquement dans la région espacée de 150 à 350 mm du faisceau de filières. A une vitesse de dévidement de 5500 m/min, le filament produit présente une irrégularité de titre inférieure à 0,60 % U.
PCT/CH1989/000147 1988-08-24 1989-08-14 Dispositif de filature a chaud avec des vitesses de devidement elevees, et filament produit au moyen de ce dispositif Ceased WO1990002222A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR898907063A BR8907063A (pt) 1988-08-24 1989-08-14 Dispositivo para fiacao por fusao com altas velocidades de extracao e filamento produzido por meio dispositivo
EP89908959A EP0396646B2 (fr) 1988-08-24 1989-08-14 Dispositif de filature a chaud avec des vitesses de devidement elevees

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3146/88-5 1988-08-24
CH314688 1988-08-24

Publications (1)

Publication Number Publication Date
WO1990002222A1 true WO1990002222A1 (fr) 1990-03-08

Family

ID=4249607

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1989/000147 Ceased WO1990002222A1 (fr) 1988-08-24 1989-08-14 Dispositif de filature a chaud avec des vitesses de devidement elevees, et filament produit au moyen de ce dispositif

Country Status (5)

Country Link
EP (1) EP0396646B2 (fr)
JP (2) JPH03500908A (fr)
BR (1) BR8907063A (fr)
DE (1) DE58906504D1 (fr)
WO (1) WO1990002222A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5593705A (en) * 1993-03-05 1997-01-14 Akzo Nobel Nv Apparatus for melt spinning multifilament yarns
US5612063A (en) * 1991-09-06 1997-03-18 Akzo N.V. Apparatus for melt spinning multifilament yarns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52133048U (fr) * 1976-04-05 1977-10-08

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707593A (en) * 1970-04-01 1972-12-26 Toray Industries Apparatus and method for manufacturing continuous filaments from synthetic polymers
EP0056963A2 (fr) * 1981-01-19 1982-08-04 Asahi Kasei Kogyo Kabushiki Kaisha Fibre de polyester pouvant être teinte à la pression normale et procédé pour la produire
EP0244217A2 (fr) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Procédé et dispositif

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5411715B2 (fr) * 1971-10-05 1979-05-17
JPS5167408A (ja) * 1974-12-02 1976-06-11 Toray Industries Shinkuboshihoho

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707593A (en) * 1970-04-01 1972-12-26 Toray Industries Apparatus and method for manufacturing continuous filaments from synthetic polymers
EP0056963A2 (fr) * 1981-01-19 1982-08-04 Asahi Kasei Kogyo Kabushiki Kaisha Fibre de polyester pouvant être teinte à la pression normale et procédé pour la produire
EP0244217A2 (fr) * 1986-04-30 1987-11-04 E.I. Du Pont De Nemours And Company Procédé et dispositif

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612063A (en) * 1991-09-06 1997-03-18 Akzo N.V. Apparatus for melt spinning multifilament yarns
US5593705A (en) * 1993-03-05 1997-01-14 Akzo Nobel Nv Apparatus for melt spinning multifilament yarns

Also Published As

Publication number Publication date
EP0396646A1 (fr) 1990-11-14
BR8907063A (pt) 1991-01-02
DE58906504D1 (de) 1994-02-03
EP0396646B2 (fr) 2001-01-03
JP2535880Y2 (ja) 1997-05-14
EP0396646B1 (fr) 1993-12-22
JPH03500908A (ja) 1991-02-28
JPH081665U (ja) 1996-12-17

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