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GB933103A - Heat-treatment of synthetic yarns - Google Patents

Heat-treatment of synthetic yarns

Info

Publication number
GB933103A
GB933103A GB39997/59A GB3999759A GB933103A GB 933103 A GB933103 A GB 933103A GB 39997/59 A GB39997/59 A GB 39997/59A GB 3999759 A GB3999759 A GB 3999759A GB 933103 A GB933103 A GB 933103A
Authority
GB
United Kingdom
Prior art keywords
heating zone
denier
melt
feed roll
temperature
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
GB39997/59A
Inventor
John Francis Clark
John Mcintosh
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
Priority to NL258099D priority Critical patent/NL258099A/xx
Priority to US3103407D priority patent/US3103407A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB39997/59A priority patent/GB933103A/en
Priority to FR845028A priority patent/FR1274237A/en
Publication of GB933103A publication Critical patent/GB933103A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/224—Selection or control of the temperature during stretching

Landscapes

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

Abstract

Melt-spun yarns or tows are drawn between a set of feed rolls and a set of draw rolls rotating at a higher peripheral speed, at least one feed roll being heated and a heating zone being provided between the feed rolls and draw rolls. Specified materials include polyesters, especially condensation products of ethylene glycol with terephthalic acid, with a mixture of terephthalic and isophthalic acids, terephthalic acid and 5-(sodium sulpho)-isophthalic acid, or terephthalic acid and small amount of another dibasic acid (e.g. sebacic or adipic acid), and polyesters of terephthalic acid with glycols other than ethylene glycol, polyolefins, especially stereo-regular polypropylene, acrylonitrile polymers, and polyamides, especially polyhexamethylene adipamide. Preferably, one heated feed roll only is used, associated with a skewed idler roll, and the heating zone comprises a heated metal plate. In preferred methods:- (1) melt-spun polyester yarns of drawn denier from 20-500 and tenacity greater than 6 g./denier are made, using a feed roll temperature of 75 DEG -90 DEG C. (especially 80 DEG -85 DEG C.) and a heating zone temperature of 160 DEG -200 DEG C. (especially 185 DEG -195 DEG C.), (2) melt-spun polyester yarns of drawn denier from 500-2,000 and tenacity greater than 6 g./denier are made, using a feed roll temperature of 60 DEG -75 DEG C. (especially 65 DEG -70 DEG C.) and a heating zone temperature of 160 DEG -200 DEG C. (especially 185 DEG -195 DEG C.), (3) melt-spun polyester yarns of tenacity less than 6 g./denier are made using a feed roll temperature of 90 DEG -100 DEG C. and a heating zone temperature of 160 DEG -180 DEG C. (especially 170 DEG -175 DEG C.), (4) melt-spun yarns of stereo-regular polyolefines of drawn denier from 20-500 are made using a feed roll temperature of 75 DEG -90 DEG C. (especially 80 DEG -85 DEG C.), and a heating zone temperature of 135 DEG -145 DEG C., (5) melt-spun yarns of stereoregular polyolefines of drawn denier from 500-2,000 are made using a feed roll temperature of 60 DEG -75 DEG C. (especially 65 DEG -70 DEG C.), and a heating zone temperature of 135 DEG -154 DEG C. The process of the invention enables higher drawing speeds to be used than is otherwise possible.
GB39997/59A 1959-11-25 1959-11-25 Heat-treatment of synthetic yarns Expired GB933103A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL258099D NL258099A (en) 1959-11-25
US3103407D US3103407A (en) 1959-11-25 Process of drawing melt spun polyester yarns
GB39997/59A GB933103A (en) 1959-11-25 1959-11-25 Heat-treatment of synthetic yarns
FR845028A FR1274237A (en) 1959-11-25 1960-11-25 Process for drawing spun yarns in the molten state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39997/59A GB933103A (en) 1959-11-25 1959-11-25 Heat-treatment of synthetic yarns

Publications (1)

Publication Number Publication Date
GB933103A true GB933103A (en) 1963-08-08

Family

ID=10412629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39997/59A Expired GB933103A (en) 1959-11-25 1959-11-25 Heat-treatment of synthetic yarns

Country Status (3)

Country Link
US (1) US3103407A (en)
GB (1) GB933103A (en)
NL (1) NL258099A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330897A (en) * 1961-02-07 1967-07-11 Chemcell 1963 Ltd Production of fibers of improved elastic recovery
NL281824A (en) * 1961-08-09
US3305924A (en) * 1964-11-05 1967-02-28 Frank S Caravella Can piercing device
US3459845A (en) * 1965-09-16 1969-08-05 Du Pont Process for producing polyamide staple fibers
US3671623A (en) * 1967-08-07 1972-06-20 Teijin Ltd Method of drawing and heat treating synthetic filaments
EP0754790B1 (en) * 1995-07-19 2006-10-04 Saurer GmbH & Co. KG Method and apparatus for heating a synthetic yarn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
NL153050B (en) * 1949-04-27 Nederlanden Staat TWO-POLE FOR MISMITING THE CHARACTERISTIC IMPEDANCE OF A PUPINIZED CABLE LOADER PAIR.
US2596128A (en) * 1949-10-17 1952-05-13 Chavannes Synthetic Fibres Inc Method and apparatus for producing fine fibers
BE498428A (en) * 1950-01-11
US2768057A (en) * 1950-02-08 1956-10-23 Phrix Werke Ag Drawing of organic high polymers
BE569623A (en) * 1957-07-26

Also Published As

Publication number Publication date
NL258099A (en)
US3103407A (en) 1963-09-10

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