GB1017849A - Process and apparatus for semi-melt spinning synthetic high polymers - Google Patents

Process and apparatus for semi-melt spinning synthetic high polymers

Info

Publication number
GB1017849A
GB1017849A GB1909864A GB1909864A GB1017849A GB 1017849 A GB1017849 A GB 1017849A GB 1909864 A GB1909864 A GB 1909864A GB 1909864 A GB1909864 A GB 1909864A GB 1017849 A GB1017849 A GB 1017849A
Authority
GB
United Kingdom
Prior art keywords
cell
jet
semi
spinning
obturator
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
GB1909864A
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.)
Rhodiaceta SA
Original Assignee
Rhodiaceta 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
Application filed by Rhodiaceta SA filed Critical Rhodiaceta SA
Publication of GB1017849A publication Critical patent/GB1017849A/en
Expired legal-status Critical Current

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
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/14—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
    • 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
    • D01D5/04—Dry spinning methods
    • 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)
  • 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)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Inorganic Fibers (AREA)
  • Artificial Filaments (AREA)

Abstract

1,017,849. Semi-melt spinning synthetic polymers. SOC. RHODIACETA. May 7, 1964 [May 22, 1963], No. 19098/64. Heading B5B. Synthetic high polymers are semi-melt spun by extruding downwards a heated mixture of the polymer and a solvent therefor into a heated vertical spinning cell through a spinneret to form a bundle of filaments which is coaxial with the spinning cell and which is drawn downwards through the cell and out of the open bottom of the cell, the bundle of filaments being cooled during its passage through the cell solely by the entry of air or other gas into the open bottom of the cell and its flow up through the cell, said flow being a natural draught due to the air or other gas entering the cell becoming heated in the upper part of the cell and escaping through one or more apertures in the top of the cell which communicate with the outer atmosphere, the upward flow of air or other gas through the cell being so directed as to be uniformly distributed in relation to the bundle of filaments and the rate of flow being regulated at a level at least as high as the face of the spinneret. The material which is semi-melt spun may comprise a mixture of polyvinyl alcohol and water. The apparatus used may comprise a vertical spinning cell open at its lower end and having in its upper end a coaxial spinning jet, means for heating the cell and an obturator disposed at a level at least as high as the jet, the obturator having, as the only communication of the top of the cell with the external atmosphere, one or more apertures positioned symmetrically in relation to the vertical axis of the jet. The obturator may be provided with a single annular aperture, the centre of which is situated on the axis of the jet, or with a number of apertures disposed in one or more concentric circular rows whose common centre is situated on the axis of the jet. The obturator may comprise at least two contacting annular flat discs or plates adapted to pivot relatively to one another about their common axis, the apertures of each annular disc being adapted to be registered at least partially with those of the other.
GB1909864A 1963-05-22 1964-05-07 Process and apparatus for semi-melt spinning synthetic high polymers Expired GB1017849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR935750A FR1365473A (en) 1963-05-22 1963-05-22 Process and apparatus for semi-molten spinning

Publications (1)

Publication Number Publication Date
GB1017849A true GB1017849A (en) 1966-01-19

Family

ID=8804480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1909864A Expired GB1017849A (en) 1963-05-22 1964-05-07 Process and apparatus for semi-melt spinning synthetic high polymers

Country Status (7)

Country Link
BE (1) BE648241A (en)
CH (1) CH432718A (en)
DE (1) DE1435686A1 (en)
ES (1) ES300133A1 (en)
FR (1) FR1365473A (en)
GB (1) GB1017849A (en)
NL (1) NL6405648A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3125898A1 (en) * 1981-07-01 1983-02-10 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING DRY-SPUN POLYACRYLNITRILE HOLLOW FIBERS AND FABRICS

Also Published As

Publication number Publication date
NL6405648A (en) 1964-11-23
CH432718A (en) 1967-03-31
ES300133A1 (en) 1964-11-16
DE1435686A1 (en) 1969-04-10
BE648241A (en) 1964-11-23
FR1365473A (en) 1964-07-03

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