GB571566A - Improved manufacture of artificial yarns - Google Patents

Improved manufacture of artificial yarns

Info

Publication number
GB571566A
GB571566A GB1686343A GB1686343A GB571566A GB 571566 A GB571566 A GB 571566A GB 1686343 A GB1686343 A GB 1686343A GB 1686343 A GB1686343 A GB 1686343A GB 571566 A GB571566 A GB 571566A
Authority
GB
United Kingdom
Prior art keywords
yarn
twist
bobbin
twisted
taken
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
GB1686343A
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 GB1686343A priority Critical patent/GB571566A/en
Publication of GB571566A publication Critical patent/GB571566A/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
    • D01D7/00—Collecting the newly-spun products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

<PICT:0571566/IV/1> <PICT:0571566/IV/2> A twistless nylon yarn is obtained by twisting a plurality of nylon filaments, obtained by melt-spinning, cold-drawing the twisted yarn so formed and collecting the drawn yarn on a spindle rotating reversely to the twist of the yarn so that when the yarn is unwound from the spindle it is substantially free from twist. The reverse twisting is substantially equal in magnitude to the initial twist divided by the draw ratio. The unwinding from the bobbin may be such as to involve a twist, i.e. by direct over-end withdrawal, or such as to involve no twist, that is, by parallel withdrawal. In the former case, the residual twist of the yarn on the bobbin is such that the over-end withdrawal nullifies it. In the latter case, the yarn on the bobbin is free of twist. The twistless multifilament yarn may be used for covering electric wires and cables. As shown in Fig. 1, nylon filaments collected from a spinneret and having no twist are taken from bobbin 1, passed through feed rolls 3, 4, guide 5, and traveller 6 on reciprocating ring 7, and are wound and twisted on bobbin 8. As shown in Fig. 2, the twisted yarn is taken from bobbin 8, passed between feed rolls 10, 11 and stretched by means of roll 13 and separator roll 14. The draw ratio may be 4 : 1. The twisted and drawn yarn is taken up on the untwisting bobbin 18. Specification 514,821 is referred to.
GB1686343A 1943-10-14 1943-10-14 Improved manufacture of artificial yarns Expired GB571566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1686343A GB571566A (en) 1943-10-14 1943-10-14 Improved manufacture of artificial yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1686343A GB571566A (en) 1943-10-14 1943-10-14 Improved manufacture of artificial yarns

Publications (1)

Publication Number Publication Date
GB571566A true GB571566A (en) 1945-08-30

Family

ID=10085049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1686343A Expired GB571566A (en) 1943-10-14 1943-10-14 Improved manufacture of artificial yarns

Country Status (1)

Country Link
GB (1) GB571566A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2585518A (en) * 1950-10-26 1952-02-12 Francois Masurel Freres Ets Process of treating synthetic yarns
US2641914A (en) * 1948-07-19 1953-06-16 Varinyl Method of producing stockings for varicose veins
US2901884A (en) * 1955-01-17 1959-09-01 Jan V Weinberger Multiple core yarn
US3025657A (en) * 1958-08-12 1962-03-20 American Enka Corp Package building

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641914A (en) * 1948-07-19 1953-06-16 Varinyl Method of producing stockings for varicose veins
US2585518A (en) * 1950-10-26 1952-02-12 Francois Masurel Freres Ets Process of treating synthetic yarns
US2901884A (en) * 1955-01-17 1959-09-01 Jan V Weinberger Multiple core yarn
US3025657A (en) * 1958-08-12 1962-03-20 American Enka Corp Package building

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