GB871875A - Improvements in or relating to spinnerets - Google Patents

Improvements in or relating to spinnerets

Info

Publication number
GB871875A
GB871875A GB1706359A GB1706359A GB871875A GB 871875 A GB871875 A GB 871875A GB 1706359 A GB1706359 A GB 1706359A GB 1706359 A GB1706359 A GB 1706359A GB 871875 A GB871875 A GB 871875A
Authority
GB
United Kingdom
Prior art keywords
length
frustocone
orifices
spinning
exceeding
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
GB1706359A
Inventor
Harold John Palmer
Ronald Edmund Ricketts
Clifford George Weeks
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.)
British Nylon Spinners Ltd
Original Assignee
British Nylon Spinners 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
Application filed by British Nylon Spinners Ltd filed Critical British Nylon Spinners Ltd
Priority to GB1706359A priority Critical patent/GB871875A/en
Priority to FR827864A priority patent/FR1262093A/en
Publication of GB871875A publication Critical patent/GB871875A/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
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes

Abstract

A spinneret has orifices having their vertical section in the form of a downwardly tapering frustocone, the narrow end of which continues as a cylindrical capillary coaxial therewith, the conical angle not exceeding 14 degrees and preferably not exceeding 7 degrees, the length of the frustocone being from 0,75 to 2,5 cms. and the length of the cylindrical portion being from 5%-40%, preferably from 20%-40%, of the total length of the conical and cylindrical portions. The edges of the orifices may be slightly rounded. Such spinnerets are suitable for the melt-spinning of highly viscous melts of filament-forming polymers, especially polyolefins, e.g. polyethylene, polypropylene, poly-4-methylpentene-1 and polystyrene, and may also be used in the melt-spinning of polyamides. Specifications 538,986, 731,849 and 810,023 are referred to.
GB1706359A 1959-05-20 1959-05-20 Improvements in or relating to spinnerets Expired GB871875A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1706359A GB871875A (en) 1959-05-20 1959-05-20 Improvements in or relating to spinnerets
FR827864A FR1262093A (en) 1959-05-20 1960-05-20 Extruders for melt spinning of high viscosity polymers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1706359A GB871875A (en) 1959-05-20 1959-05-20 Improvements in or relating to spinnerets

Publications (1)

Publication Number Publication Date
GB871875A true GB871875A (en) 1961-07-05

Family

ID=10088596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1706359A Expired GB871875A (en) 1959-05-20 1959-05-20 Improvements in or relating to spinnerets

Country Status (1)

Country Link
GB (1) GB871875A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846377A (en) * 1971-11-12 1974-11-05 Allied Chem Method of producing polyethylene terephthalate fibers
US5652001A (en) * 1993-05-24 1997-07-29 Courtaulds Fibres Limited Spinnerette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3846377A (en) * 1971-11-12 1974-11-05 Allied Chem Method of producing polyethylene terephthalate fibers
US5652001A (en) * 1993-05-24 1997-07-29 Courtaulds Fibres Limited Spinnerette

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