GB1274854A - Improvements in or relating to the drawing and bulking of synthetic filament yarns - Google Patents

Improvements in or relating to the drawing and bulking of synthetic filament yarns

Info

Publication number
GB1274854A
GB1274854A GB33365/68A GB3336568A GB1274854A GB 1274854 A GB1274854 A GB 1274854A GB 33365/68 A GB33365/68 A GB 33365/68A GB 3336568 A GB3336568 A GB 3336568A GB 1274854 A GB1274854 A GB 1274854A
Authority
GB
United Kingdom
Prior art keywords
yarn
false
partially
draw
drawn
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
GB33365/68A
Inventor
Paul Rogers
Roy Spencer Holliss
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 GB33365/68A priority Critical patent/GB1274854A/en
Priority to ZA694451*A priority patent/ZA694451B/en
Priority to US835714A priority patent/US3601972A/en
Priority to DE19691935389 priority patent/DE1935389A1/en
Publication of GB1274854A publication Critical patent/GB1274854A/en
Expired legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/0213Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting after drawing the yarn on the same machine
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/0206Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting
    • D02G1/022Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist by false-twisting while simultaneously drawing the yarn

Abstract

1,274,854. False-twist crimped yarns; drawing. IMPERIAL CHEMICAL INDUSTRIES Ltd. 23 June, 1969 [12 July, 1968], No. 33365/ 68. Heading D1F. A continuous process for false-twist crimping a synthetic filament yarn comprises firstly submitting the undrawn yarn to a pre-drawing stage in which it is partially-drawn, and then feeding the partially-drawn yarn to a falsetwist crimping zone under such conditions of tension that drawing of the yarn is completed in or on heating means in the false-twist crimping zone. The yarn is preferably a polyamide yarn e.g. polyhexamethylene adipamide yarn. The ratio of the draw ratio in the crimping stage to the draw ratio in the pre-drawing stage lies in the range 0.3 to 0.8 or above 1.3. In a preferred embodiment, the undrawn yarn is partially drawn between a feed roll and a faster rotating draw roll, the draw being localised at a ceramic snubbing pin. The partially drawn yarn is fed directly from the draw roll to the false-twist crimping stage wherein the yarn is passed through or over a heater and to a rotary friction device, and the yarn is withdrawn at a greater speed than that at which it is fed to the crimper. The bulk may be developed in the yarn prior to or after being made into a fabric by means of heat treatment under conditions of controlled tension and temperature.
GB33365/68A 1968-07-12 1968-07-12 Improvements in or relating to the drawing and bulking of synthetic filament yarns Expired GB1274854A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB33365/68A GB1274854A (en) 1968-07-12 1968-07-12 Improvements in or relating to the drawing and bulking of synthetic filament yarns
ZA694451*A ZA694451B (en) 1968-07-12 1969-06-23 Improvements in or relating to the drawing and bulking of synthetic filament yarns
US835714A US3601972A (en) 1968-07-12 1969-06-23 Drawing and bulking of synthetic filament yarns
DE19691935389 DE1935389A1 (en) 1968-07-12 1969-07-11 Improvements in, or in connection with, the drawing and bulking of synthetic continuous yarns

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33365/68A GB1274854A (en) 1968-07-12 1968-07-12 Improvements in or relating to the drawing and bulking of synthetic filament yarns

Publications (1)

Publication Number Publication Date
GB1274854A true GB1274854A (en) 1972-05-17

Family

ID=10351980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33365/68A Expired GB1274854A (en) 1968-07-12 1968-07-12 Improvements in or relating to the drawing and bulking of synthetic filament yarns

Country Status (4)

Country Link
US (1) US3601972A (en)
DE (1) DE1935389A1 (en)
GB (1) GB1274854A (en)
ZA (1) ZA694451B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936999A (en) * 1970-04-06 1976-02-10 Teijin Ltd. False twist-crimped polyester yarns production
US3797221A (en) * 1970-04-06 1974-03-19 Teijin Ltd False twist-crimped polyester yarns and process for their production
US3771307A (en) * 1971-08-24 1973-11-13 Du Pont Drawing and bulking polyester yarns
SE392299B (en) * 1971-08-24 1977-03-21 Du Pont PROCEDURE AND MEANS FOR MANUFACTURE OF YARN WITH FULL AND WIRE
BE788423A (en) * 1971-09-16 1973-01-02 Snam Progetti TWO-COMPONENT CONTINUOUS ACRYLIC FIBER INFLATED YARNS AND ITS MANUFACTURING METHOD
DE2207849B2 (en) * 1972-02-19 1976-04-01 Metallgesellschaft Ag, 6000 Frankfurt PROCESS FOR MANUFACTURING TEXTURED, MOLECULAR ORIENTED FEEDS FROM POLYESTER OR POLYAMIDE
DE2211843A1 (en) * 1972-03-11 1973-09-20 Hoechst Ag USE OF NON-STRETCHED POLYAETHYLENE TEREPHTHALATE FIBES
JPS49132310A (en) * 1972-10-09 1974-12-19
US3816994A (en) * 1973-04-11 1974-06-18 Burlington Industries Inc False-twist texturing process with improved feed yarns and feed rates

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2671304A (en) * 1949-09-13 1954-03-09 Rowedder William Spinning system
GB777625A (en) * 1955-01-28 1957-06-26 Ici Ltd Process for the manufacture of improved yarns
US2890568A (en) * 1956-06-19 1959-06-16 British Celanese Production of voluminous yarn
GB815202A (en) * 1956-08-04 1959-06-17 Inventa Ag Improvements relating to the production of crimped yarn of continuous filaments of synthetic linear polymers
US3400194A (en) * 1963-11-04 1968-09-03 Du Pont Process for making high-tenacity, low elongation industrial yarn
NL129961C (en) * 1963-11-12
US3457338A (en) * 1964-09-21 1969-07-22 Dow Chemical Co Process for crimping polypropylene filaments
GB1098545A (en) * 1965-09-10 1968-01-10 Ici Ltd Low-torque, multifilament compact yarn
US3474612A (en) * 1967-08-10 1969-10-28 British Nylon Spinners Ltd Drawing and bulking of synthetic polymer
US3435603A (en) * 1967-10-30 1969-04-01 American Enka Corp Process and apparatus for producing torque in synthetic filaments,fibers and yarns

Also Published As

Publication number Publication date
DE1935389A1 (en) 1970-08-27
US3601972A (en) 1971-08-31
ZA694451B (en) 1971-01-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee