GB928825A - Improvements in or relating to synthetic filaments - Google Patents

Improvements in or relating to synthetic filaments

Info

Publication number
GB928825A
GB928825A GB723361A GB723361A GB928825A GB 928825 A GB928825 A GB 928825A GB 723361 A GB723361 A GB 723361A GB 723361 A GB723361 A GB 723361A GB 928825 A GB928825 A GB 928825A
Authority
GB
United Kingdom
Prior art keywords
filament
orifice
temperature
relating
godet
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
GB723361A
Inventor
Albert Gordon Beaumont
John Joseph Pfleger
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.)
Akzo Nobel UK PLC
Original Assignee
Courtaulds PLC
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 Courtaulds PLC filed Critical Courtaulds PLC
Priority to GB723361A priority Critical patent/GB928825A/en
Publication of GB928825A publication Critical patent/GB928825A/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
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length

Landscapes

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

Abstract

A slub filament is produced by extruding molten polyolefin through an orifice at a shear rate above the critical shear rate, thereby producing turbulence and a serrated monofilament, and stretching the serrated filament. Polypropylene melt at a temperature of 250 DEG C. may be extruded through a head having six orifices at a speed of 8 m./min. The entry to each orifice may be tapered and each orifice may have a diameter of 0.02 inch. Each filament may be stretched 300-1,200% while at a temperature of 100 DEG C. by a take-up godet. Polyethylene filaments may be similarly produced using orifices having a diameter of 90 DEG 100 DEG C., and stretching 500-1,200% while at a temperature of 90 DEG -100 DEG C. using a take-up godet.
GB723361A 1961-02-28 1961-02-28 Improvements in or relating to synthetic filaments Expired GB928825A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB723361A GB928825A (en) 1961-02-28 1961-02-28 Improvements in or relating to synthetic filaments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB723361A GB928825A (en) 1961-02-28 1961-02-28 Improvements in or relating to synthetic filaments

Publications (1)

Publication Number Publication Date
GB928825A true GB928825A (en) 1963-06-19

Family

ID=9829198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB723361A Expired GB928825A (en) 1961-02-28 1961-02-28 Improvements in or relating to synthetic filaments

Country Status (1)

Country Link
GB (1) GB928825A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255287A (en) * 1960-07-01 1966-06-07 Phillips Petroleum Co Method of forming synthetic knopped filaments
US3439084A (en) * 1965-08-09 1969-04-15 Toray Industries Thick and thin yarn and process for the preparation thereof
US3506753A (en) * 1967-04-07 1970-04-14 Monsanto Co Melt-spinning low viscosity polymers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255287A (en) * 1960-07-01 1966-06-07 Phillips Petroleum Co Method of forming synthetic knopped filaments
US3439084A (en) * 1965-08-09 1969-04-15 Toray Industries Thick and thin yarn and process for the preparation thereof
US3506753A (en) * 1967-04-07 1970-04-14 Monsanto Co Melt-spinning low viscosity polymers

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