EP0086426B1 - Verfahren und Vorrichtung zur Herstellung von Kunststoff-Fäden - Google Patents

Verfahren und Vorrichtung zur Herstellung von Kunststoff-Fäden Download PDF

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Publication number
EP0086426B1
EP0086426B1 EP83101131A EP83101131A EP0086426B1 EP 0086426 B1 EP0086426 B1 EP 0086426B1 EP 83101131 A EP83101131 A EP 83101131A EP 83101131 A EP83101131 A EP 83101131A EP 0086426 B1 EP0086426 B1 EP 0086426B1
Authority
EP
European Patent Office
Prior art keywords
cooling water
trough
melt
led
strands
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
Application number
EP83101131A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0086426A3 (en
EP0086426A2 (de
Inventor
Hugo Dr. Strehler
Guenter Valentin
Werner Dr. Hoerauf
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0086426A2 publication Critical patent/EP0086426A2/de
Publication of EP0086426A3 publication Critical patent/EP0086426A3/de
Application granted granted Critical
Publication of EP0086426B1 publication Critical patent/EP0086426B1/de
Expired legal-status Critical Current

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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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/0885—Cooling filaments, threads or the like, leaving the spinnerettes by means of a liquid
    • 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
    • D01D13/00—Complete machines for producing artificial threads

Definitions

  • the invention relates to a method for producing threads from synthetic materials.
  • the invention further relates to a device for carrying out the method according to the preamble of claim 3.
  • a melt made of synthetic materials such as polyamide, polyester, polyethylene terephthalate, polybutylene terephthalate, polystyrene has been introduced into a cooling water bath through the nozzle openings of a nozzle plate, through which the individual melt streams have been guided in an essentially horizontal cooling section to the desired strength.
  • the length of the cooling section to be selected mainly depends on four parameters: diameter of the individual melt streams, their flow rate, additives in the melt and cooling water temperature.
  • the cooling troughs used for this purpose have lengths of 10 to 15 m. In addition to this large space requirement, it is disadvantageous that the length of the cooling section cannot be varied with regard to changing parameters.
  • the melt of synthetic material is passed with the aid of a pump, for example a gear pump, via a feed 1 into a container 3 provided with a heating jacket 2 and then driven through the nozzle openings 4 of a nozzle plate 5, so that individual melt streams 6 which are to be regarded as threads are formed. These then pass into a trough 7, in which they are guided to a quench by means of a first deflecting shaft 8 against a cooling water flow between an inlet 9 and an outlet 10 at a depth of up to 300 times their diameter.
  • the length of this essentially horizontal cooling section is dimensioned at a transport speed of the melt streams of 50 to 150 meters per minute to 500 to 1500 times the diameter of a single melt stream.
  • melt streams on this cooling section have been quenched to such an extent that their surface strength is sufficient to absorb the weight of the vertically hanging melt stream and a tensile force P, they are by means of a second deflecting shaft 11 through an opening 12 in the bottom of the tub in a subsequent, in steered substantially vertically arranged tube 13, the length of which in practical operation is approximately 4 to 6 times the distance between the center of the opening of the tub base and the nozzle plate.
  • a hollow cylinder 15 is slidably arranged on rails 16, which serves as a holding and guiding element of a deflection shaft 17 held at its upper end.
  • the individual melt streams are led back in a loop with a length of 2,000 to 10,000 times their diameter back to the tub 7, from where they are via the deflecting shafts 18 and 19 out of the cooling water bath as solidified threads or strands for further processing be performed.
  • the hollow cylinder 15 with the deflection shaft 17 can be displaced along the tube axis with the aid of a cable winch 21 engaging a bracket 20 of the hollow cylinder, so that the length of the loop in the tube 13 and thus the length of the cooling section can be adjusted.
  • This adjustability to adapt to the respective process parameters enables an optimal cooling section for the melt threads. It is important because the temperature of the solidified melt threads determines the quality of the product during further processing, for example the quality of the cut when processing into granules. Due to its toughness, a thread or strand that is cooled too far often leads to protrusions referred to as “tails”, which lead to undesired dust formation when subsequently conveyed pneumatically. Furthermore, the energy consumption for cutting and knife wear are increased. If the thread is not cooled enough, the individual granules can stick together and form curved chains that can clog the delivery line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Artificial Filaments (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP83101131A 1982-02-17 1983-02-07 Verfahren und Vorrichtung zur Herstellung von Kunststoff-Fäden Expired EP0086426B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823205645 DE3205645A1 (de) 1982-02-17 1982-02-17 Verfahren und vorrichtung zur herstellung von kunststoff-faeden
DE3205645 1982-02-17

Publications (3)

Publication Number Publication Date
EP0086426A2 EP0086426A2 (de) 1983-08-24
EP0086426A3 EP0086426A3 (en) 1985-12-11
EP0086426B1 true EP0086426B1 (de) 1988-02-03

Family

ID=6155964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101131A Expired EP0086426B1 (de) 1982-02-17 1983-02-07 Verfahren und Vorrichtung zur Herstellung von Kunststoff-Fäden

Country Status (4)

Country Link
US (1) US4446089A (enrdf_load_stackoverflow)
EP (1) EP0086426B1 (enrdf_load_stackoverflow)
JP (1) JPS58144107A (enrdf_load_stackoverflow)
DE (2) DE3205645A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA239194A (de) * 1994-12-22 1996-02-15 Chemiefaser Lenzing Ag Vorrichtung zur durchführung eines trocken-/nassspinnverfahrens
US5984655A (en) * 1994-12-22 1999-11-16 Lenzing Aktiengesellschaft Spinning process and apparatus
US5741529A (en) * 1996-07-31 1998-04-21 Alfacel S.A. Adjustable reaction tubs for cellulose
JP3061182B2 (ja) * 1998-12-16 2000-07-10 ユニプラス滋賀株式会社 モノフィラメント捲縮糸の製造方法および製造装置
US6991445B2 (en) * 2003-02-21 2006-01-31 K-Ter Imagineering, Inc. Siding production line cooling apparatus and method
DE102010007497A1 (de) * 2010-02-09 2011-08-11 Thüringisches Institut für Textil- und Kunststoff-Forschung e.V., 07407 Wärmespeichernde Formkörper
CN105603550B (zh) * 2016-01-30 2017-11-10 河南省龙都生物科技有限公司 竹炭聚乳酸混合熔体直接纺丝系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875019A (en) * 1956-01-17 1959-02-24 Firestone Tire & Rubber Co Method for producing crimped filaments
US3066366A (en) * 1960-12-08 1962-12-04 American Viscose Corp Binding device
NL264878A (enrdf_load_stackoverflow) * 1961-05-17
US3199148A (en) * 1962-04-20 1965-08-10 Avisun Corp Film quenching apparatus
US3491177A (en) * 1967-03-31 1970-01-20 Du Pont Evaporative cooling of polymer composition
DE1916222B1 (de) * 1969-03-29 1970-11-05 Scheer & Cie C F Einrichtung zum Kuehlen von extrudierten Kunststoffstraengen,vornehmlich mit anschliessendem Granulator
US3890074A (en) * 1972-04-22 1975-06-17 Rudolf Paul Fritsch Extrusion and cooling plant for plastics strands
US4321230A (en) * 1980-06-05 1982-03-23 Mobil Oil Corporation Process for recovering film from pressurized extrusion zone

Also Published As

Publication number Publication date
DE3205645A1 (de) 1983-08-25
JPS58144107A (ja) 1983-08-27
EP0086426A3 (en) 1985-12-11
JPH0246686B2 (enrdf_load_stackoverflow) 1990-10-17
DE3375591D1 (en) 1988-03-10
EP0086426A2 (de) 1983-08-24
US4446089A (en) 1984-05-01

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