ES395322A1 - Multifilament extrusion method and apparatus - Google Patents

Multifilament extrusion method and apparatus

Info

Publication number
ES395322A1
ES395322A1 ES395322A ES395322A ES395322A1 ES 395322 A1 ES395322 A1 ES 395322A1 ES 395322 A ES395322 A ES 395322A ES 395322 A ES395322 A ES 395322A ES 395322 A1 ES395322 A1 ES 395322A1
Authority
ES
Spain
Prior art keywords
filaments
gas
downwardly
impinge
tends
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
ES395322A
Other languages
Spanish (es)
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.)
Beloit Corp
Original Assignee
Beloit Corp
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 Beloit Corp filed Critical Beloit Corp
Publication of ES395322A1 publication Critical patent/ES395322A1/en
Expired 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
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D01D5/092—Cooling filaments, threads or the like, leaving the spinnerettes in shafts or chimneys

Landscapes

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

Abstract

Apparatus for producing a multifilament strand wherein the strand is extruded downwardly in heat exchange relationship with a gas is improved according to the present invention by providing the gas as an upwardly flowing annular gas flow surrounding the downwardly flowing filaments. The gas is conducted upwardly parallel to the filaments and thus does not impinge laterally upon the filaments. The extruded filaments entrap ambient air which tends to remain entrained in the downwardly moving strand. The upwardly flowing annular gas stream tends to pull this entrained gas out of the downwardly moving filament thus effectively cooling the filament without causing adjacent strands to impinge upon one another. In this manner, the capacity of the apparatus is increased substantially. Fibers such as polypropylene can be melt spun according to the present invention by passing the molten extruded fibers downwardly inside an annular upwardly flowing heat exchange gas stream. As mentioned, this tends to remove entrained air from the downwardly moving filaments thus effectively rapidly cooling the filaments without causing them to impinge upon one another.
ES395322A 1970-09-24 1971-09-22 Multifilament extrusion method and apparatus Expired ES395322A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7515670A 1970-09-24 1970-09-24

Publications (1)

Publication Number Publication Date
ES395322A1 true ES395322A1 (en) 1975-02-16

Family

ID=22123930

Family Applications (1)

Application Number Title Priority Date Filing Date
ES395322A Expired ES395322A1 (en) 1970-09-24 1971-09-22 Multifilament extrusion method and apparatus

Country Status (5)

Country Link
US (1) US3686386A (en)
JP (1) JPS5347412B1 (en)
CA (1) CA956417A (en)
ES (1) ES395322A1 (en)
GB (1) GB1343512A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1415947A (en) * 1972-09-11 1975-12-03 Autlmatik Apparate Maschinenba Spinning machines for producing and reeling synthetic fibres
DE3406347A1 (en) * 1983-02-25 1984-10-11 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Spinning apparatus for chemical fibres with a blowing box and spinning shaft
CH663222A5 (en) * 1983-02-25 1987-11-30 Barmag Barmer Maschf SPINNING MACHINE FOR CHEMICAL FIBERS.
DE4133329C2 (en) * 1991-10-08 1994-09-15 Hench Automatik App Masch Process for cooling and granulating strands which melt out of nozzles

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2252684A (en) * 1938-08-09 1941-08-19 Du Pont Apparatus for the production of artificial structures
JPS426243Y1 (en) * 1966-03-22 1967-03-27
US3611485A (en) * 1968-12-30 1971-10-12 Monsanto Co Spinning chimney

Also Published As

Publication number Publication date
US3686386A (en) 1972-08-22
JPS5347412B1 (en) 1978-12-21
CA956417A (en) 1974-10-22
GB1343512A (en) 1974-01-10

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