GB1218830A - Improvements in or relating to the production of variable denier yarns of synthetic polymers - Google Patents

Improvements in or relating to the production of variable denier yarns of synthetic polymers

Info

Publication number
GB1218830A
GB1218830A GB27906/68A GB2790668A GB1218830A GB 1218830 A GB1218830 A GB 1218830A GB 27906/68 A GB27906/68 A GB 27906/68A GB 2790668 A GB2790668 A GB 2790668A GB 1218830 A GB1218830 A GB 1218830A
Authority
GB
United Kingdom
Prior art keywords
yarn
denier
nub
programme
flame
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
GB27906/68A
Inventor
John Richard Bates
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB27906/68A priority Critical patent/GB1218830A/en
Priority to US827074A priority patent/US3662055A/en
Priority to CA053859A priority patent/CA917891A/en
Priority to DE1929962A priority patent/DE1929962C3/en
Publication of GB1218830A publication Critical patent/GB1218830A/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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2913—Rod, strand, filament or fiber
    • Y10T428/2973—Particular cross section
    • Y10T428/2976—Longitudinally varying

Landscapes

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

Abstract

1,218,830. Variable denier synthetic yarns. IMPERIAL CHEMICAL INDUSTRIES Ltd. 19 May, 1969 [12 June, 1968], No. 27906/68. Heading B5B. Variable denier yarns of synthetic polymers are produced by drawing undrawn yarn between feed and draw rolls set to rotate at different speeds defining a draw ratio lower than the " natural draw ratio " across a " neck " of the yarn, and causing the yarn in the span between the feed and draw rolls and a heat source consisting of a portion of a flame or hot gas stream intermittently to come into close proximity or contact with one another according to a programme so as to form " necks " in the yarn. The yarn may be moved into and out of contact with the flame or hot gas stream, e.g. by means of passing the yarn through guides on an electro-mechanical vibrator controlled by a signal generator. Alternatively the flame or hot gas stream may be deflected into and out of contact with the yarn, e.g. by means of a jet of compressed air modulated by a fluid logic element controlled electromagnetically. In both cases the movement is controlled according to a programme which may be periodic or pseudo-random, e.g. by means of periodic or pseudo-random pulses from the signal generator. The yarn thus produced has thicker portions or nubs of lengths and spacings corresponding to the pulse lengths and spacings of the programme. Typically, mean nub lengths are 1-25 inch, mean nub spacings are 1-100 inch, and the mean nub peak denier is 1À2 to 4 times the denier of the thinner sections. Preferred polymers are polyhexamethylene adipamide (nylon 6À6) and polyethylene terephthalate. Examples of production are given.
GB27906/68A 1968-06-12 1968-06-12 Improvements in or relating to the production of variable denier yarns of synthetic polymers Expired GB1218830A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB27906/68A GB1218830A (en) 1968-06-12 1968-06-12 Improvements in or relating to the production of variable denier yarns of synthetic polymers
US827074A US3662055A (en) 1968-06-12 1969-05-22 Production of variable denier yarns of synthetic polymers
CA053859A CA917891A (en) 1968-06-12 1969-06-09 Production of variable denier yarns of synthetic polymers
DE1929962A DE1929962C3 (en) 1968-06-12 1969-06-12 Process for the production of filament yarns from synthetic polymers with variable denier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27906/68A GB1218830A (en) 1968-06-12 1968-06-12 Improvements in or relating to the production of variable denier yarns of synthetic polymers

Publications (1)

Publication Number Publication Date
GB1218830A true GB1218830A (en) 1971-01-13

Family

ID=10267207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27906/68A Expired GB1218830A (en) 1968-06-12 1968-06-12 Improvements in or relating to the production of variable denier yarns of synthetic polymers

Country Status (4)

Country Link
US (1) US3662055A (en)
CA (1) CA917891A (en)
DE (1) DE1929962C3 (en)
GB (1) GB1218830A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202959A1 (en) * 1972-10-16 1974-05-10 Kanefuchi Kagaku Kogyo Kk

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4043108A (en) * 1976-09-16 1977-08-23 E. I. Du Pont De Nemours And Company Process
US4383404A (en) * 1981-08-26 1983-05-17 Milliken Research Corporation Method and apparatus to produce post heated textured yarn
US4921668A (en) * 1987-10-13 1990-05-01 E. I. Du Pont De Nemours And Company Process for flame treating
US5082610A (en) * 1987-10-13 1992-01-21 E. I. Du Pont De Nemours And Company Process for surface treating thermoplastic monofilaments
US5333364A (en) * 1991-12-04 1994-08-02 Guilford Mills, Inc. Method for producing random yarn denier variations on draw warping machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202959A1 (en) * 1972-10-16 1974-05-10 Kanefuchi Kagaku Kogyo Kk

Also Published As

Publication number Publication date
CA917891A (en) 1973-01-02
DE1929962B2 (en) 1977-11-17
DE1929962A1 (en) 1969-12-18
US3662055A (en) 1972-05-09
DE1929962C3 (en) 1978-06-29

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