GB1292381A - Process for drawing polyester yarns - Google Patents

Process for drawing polyester yarns

Info

Publication number
GB1292381A
GB1292381A GB5172/70A GB517270A GB1292381A GB 1292381 A GB1292381 A GB 1292381A GB 5172/70 A GB5172/70 A GB 5172/70A GB 517270 A GB517270 A GB 517270A GB 1292381 A GB1292381 A GB 1292381A
Authority
GB
United Kingdom
Prior art keywords
filaments
stage
roll
rolls
peripheral speed
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
GB5172/70A
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Publication of GB1292381A publication Critical patent/GB1292381A/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
    • D02J1/228—Stretching in two or more steps, with or without intermediate steps
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • 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
    • D02J1/227—Control of the stretching tension; Localisation of the stretching neck; Draw-pins
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/73—Processes of stretching

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Artificial Filaments (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

1292381 Polyethylene terephthalate filaments TEIJIN Ltd 3 Feb 1970 [3 Feb 1969] 5172/70 Heading B5B A process for drawing undrawn filaments, yarns and tows of a polyester containing at least 85 mol. per cent of ethylene terephthalate units between a plurality of heated feed rolls 2a-2e and 3, positively driven at substantially the same peripheral speed and at least one draw roll 4a-4d positively driven at a peripheral speed higher than that of the feed rolls is characterized in that at least the last feed roll 3 has a small diameter of 15 to 50 mm., and the arc of contact of the filaments with this roll extend over at least 180 degrees, so that the drawing point of the filaments is localized within its are of contact with said roll. 0À05-0À6% by weight of an oil may be applied as a finishing agent to the filaments before they are drawn, suitably by means of an oiling roller (5) (Fig. 2, not shown). The surface temperature of the small diameter feed roll may be maintained at 60-110‹ C. In a modification the drawing of the filaments is effected in two or more stages, the method of the invention being preferably used in the first stage, the draw ratio in the first stage being 2À5 to 5À5 and the filaments being then further drawn at a stretch ratio of at least 1À1, for example by passing them from the first stage draw rolls 4a-4d, through heater 6 to second stage draw rolls 7a-7j driven at a peripheral speed higher than that of the first stage draw rolls. The filaments may then be passed through heater 8 to third stage draw rolls 9a-9e. The polyester may be polyethylene terephthalate. The polyester may have an intrinsic viscosity as measured in orthochlorophenol at 35‹ C. of at least 0À75.
GB5172/70A 1969-02-03 1970-02-03 Process for drawing polyester yarns Expired GB1292381A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP799269 1969-02-03

Publications (1)

Publication Number Publication Date
GB1292381A true GB1292381A (en) 1972-10-11

Family

ID=11680888

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5172/70A Expired GB1292381A (en) 1969-02-03 1970-02-03 Process for drawing polyester yarns

Country Status (6)

Country Link
US (1) US3770866A (en)
BR (1) BR7016550D0 (en)
CA (1) CA949713A (en)
DE (1) DE2004558B2 (en)
GB (1) GB1292381A (en)
NL (1) NL7001501A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963678A (en) * 1974-06-17 1976-06-15 E. I. Du Pont De Nemours And Company Large denier polyethylene terephthalate monofilaments having good transverse properties
US4112668A (en) * 1976-10-04 1978-09-12 Monsanto Company, St. Louis, Missouri Method for treating polyester filaments
AU529092B2 (en) * 1978-03-24 1983-05-26 Toray Industries, Inc. Fasciated yarn
EP0150301A2 (en) * 1983-12-01 1985-08-07 b a r m a g Barmer Maschinenfabrik Aktiengesellschaft Apparatus for drawing bundles of synthetic yarns
CA1292602C (en) * 1986-10-24 1991-12-03 Hugo Specker Process for producing a smooth polyester yarn and polyester yarn produced by said process
ATE76665T1 (en) * 1987-10-13 1992-06-15 Schweizerische Viscose PROCESS FOR MAKING A SMOOTH POLYESTER THREAD AND POLYESTER THREAD MADE BY PROCESS.
EP2692912A4 (en) * 2011-03-31 2014-10-15 Kolon Inc Method for manufacturing polyethylene terephthalate drawn fiber, polyethylene terephthalate drawn fiber, and tire cord
JP6968614B2 (en) * 2016-11-28 2021-11-17 Ｅｎｅｏｓ株式会社 Non-woven sound absorbing material

Also Published As

Publication number Publication date
DE2004558A1 (en) 1970-11-26
DE2004558B2 (en) 1975-03-27
NL7001501A (en) 1970-08-05
US3770866A (en) 1973-11-06
BR7016550D0 (en) 1973-02-22
CA949713A (en) 1974-06-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees