GB1148022A - Improvements relating to the production of polyacetal fibres - Google Patents

Improvements relating to the production of polyacetal fibres

Info

Publication number
GB1148022A
GB1148022A GB5156167A GB5156167A GB1148022A GB 1148022 A GB1148022 A GB 1148022A GB 5156167 A GB5156167 A GB 5156167A GB 5156167 A GB5156167 A GB 5156167A GB 1148022 A GB1148022 A GB 1148022A
Authority
GB
United Kingdom
Prior art keywords
polyacetal
filaments
temperature
carried out
heat treatment
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
GB5156167A
Inventor
Joseph Donatien Leo Tessier
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.)
Celanese Canada Ltd
Original Assignee
Chemcell Ltd
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
Priority to GB459661A priority Critical patent/GB962231A/en
Application filed by Chemcell Ltd filed Critical Chemcell Ltd
Priority to GB5156167A priority patent/GB1148022A/en
Publication of GB1148022A publication Critical patent/GB1148022A/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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • 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
    • D01F6/04—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins
    • D01F6/06—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polyolefins from polypropylene

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Artificial Filaments (AREA)

Abstract

1,148,022. Producing polyacetal fibres. CHEMCELL Ltd. 13 Nov., 1967, No. 51561/67. Addition to 962,231. Heading B5B. Polyacetal fibres having improved elastic recovery are produced by subjecting melt-spun polyacetal filaments which have been drawndown from the spinneret at a ratio of at least 25 but have not been subsequently stretched to a dry heat treatment at a temperature of at least 80‹ C. but below the melting temperature of the polyacetal under such conditions that shrinkage of the filaments occurs. The heat treatment may be carried out at a temperature of 120‹ to 150‹ C. It may be carried out at a temperature about 10‹ C. below the melting temperature of the polyacetal. The filaments may be subjected to the heat treatment while they are free to shrink without restraint. The expression " drawn-down ratio " is defined as the ratio of the cross-sectional area of the filament at the spinning orifice to that of the filament as it is taken up or passes over the first godet or other take-up means. The heat treatment may be carried out on staple fibres produced by cutting the filaments to staple length. When the treatment is carried out on the filaments, they may be held under sufficient tension to limit the shrinkage occurring, e.g. to 5 to 15% of their original length. In an example, polyacetal resin (trioxane/ethylene oxide copolymer containing 2% oxyethylene groups, melt index 2À5) is extruded at 212‹ C. through a spinneret and the extruded filaments cooled with air as they emerge from the spinneret. The loose yarn is then heat treated in an air oven at 150‹ C. for 30 minutes and then allowed to cool to room temperature.
GB5156167A 1967-11-13 1967-11-13 Improvements relating to the production of polyacetal fibres Expired GB1148022A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB459661A GB962231A (en) 1967-11-13 1961-02-07 Process for the production of fibres of improved elastic recovery
GB5156167A GB1148022A (en) 1967-11-13 1967-11-13 Improvements relating to the production of polyacetal fibres

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5156167A GB1148022A (en) 1967-11-13 1967-11-13 Improvements relating to the production of polyacetal fibres

Publications (1)

Publication Number Publication Date
GB1148022A true GB1148022A (en) 1969-04-10

Family

ID=10460494

Family Applications (2)

Application Number Title Priority Date Filing Date
GB459661A Expired GB962231A (en) 1961-02-07 1961-02-07 Process for the production of fibres of improved elastic recovery
GB5156167A Expired GB1148022A (en) 1967-11-13 1967-11-13 Improvements relating to the production of polyacetal fibres

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB459661A Expired GB962231A (en) 1961-02-07 1961-02-07 Process for the production of fibres of improved elastic recovery

Country Status (1)

Country Link
GB (2) GB962231A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330897A (en) * 1961-02-07 1967-07-11 Chemcell 1963 Ltd Production of fibers of improved elastic recovery
US3485906A (en) * 1967-08-31 1969-12-23 Hercules Inc Melt spinning elastic polypropylene monofilaments

Also Published As

Publication number Publication date
GB962231A (en) 1964-07-01

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