DE3173879D1 - A sewing thread and method for manufacturing the same - Google Patents

A sewing thread and method for manufacturing the same

Info

Publication number
DE3173879D1
DE3173879D1 DE8181303745T DE3173879T DE3173879D1 DE 3173879 D1 DE3173879 D1 DE 3173879D1 DE 8181303745 T DE8181303745 T DE 8181303745T DE 3173879 T DE3173879 T DE 3173879T DE 3173879 D1 DE3173879 D1 DE 3173879D1
Authority
DE
Germany
Prior art keywords
yarn
heat treating
sewing thread
false twisting
thread
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
DE8181303745T
Other languages
German (de)
Inventor
Takao Negishi
Teiryo Kojima
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Application granted granted Critical
Publication of DE3173879D1 publication Critical patent/DE3173879D1/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/46—Sewing-cottons or the like
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing 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
    • D02G1/0286—Producing 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 characterised by the use of certain filaments, fibres or yarns
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/16—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam
    • D02G1/168—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using jets or streams of turbulent gases, e.g. air, steam including drawing or stretching on the same machine
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

A method for manufacturing a sewing thread comprising the following steps: drawing an undrawn polyester mutifilament yarn; preliminary heat treating the drawn yarn at an effective heat treating temperature before false twisting; then, false twisting the heat treated synthetic multifilament yarn at a temperature of at least 150 DEG C: subjecting the false twisted yarn to a fluid jet treatment under the slackened condition so as to intermittently interlace in a lengthwise direction constituent filaments of the yarn and so as to form protruded portions protruding from the surface of the yarn; and post-heat treating the interlaced yarn at an effective heat treating temperature being higher than the heat treating temperature of the false twisting. Thus, a thread suitable for sewing can be obtained. The produced sewing thread comprises at least one synthetic multifilament yarn, in which thread constituent filaments of the multifilament yarn are intermittently interlaced along the lengthwise direction thereof, and a part of the constituent filaments of the multifilament yarn is protruded from tne surface of the multifilament yarn; and the torque of the sewing thread is very small in spite of the fact that substantially all filaments constituting the sewing thread have been subjected to the same false twisting.
DE8181303745T 1981-08-18 1981-08-18 A sewing thread and method for manufacturing the same Expired DE3173879D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81303745A EP0072881B1 (en) 1981-08-18 1981-08-18 A sewing thread and method for manufacturing the same

Publications (1)

Publication Number Publication Date
DE3173879D1 true DE3173879D1 (en) 1986-04-03

Family

ID=8188373

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181303745T Expired DE3173879D1 (en) 1981-08-18 1981-08-18 A sewing thread and method for manufacturing the same

Country Status (3)

Country Link
EP (1) EP0072881B1 (en)
AT (1) ATE18266T1 (en)
DE (1) DE3173879D1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3275841D1 (en) * 1982-10-07 1987-04-30 Toray Industries A sewing thread and method for manufacturing the same
US5791135A (en) * 1996-06-20 1998-08-11 American & Efird, Inc. Heat treatment of textile strands prior to plying

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6403698A (en) * 1964-04-08 1965-10-11
CA972636A (en) * 1974-12-10 1975-08-12 Alexander Milovanovic Sewing thread
US4164117A (en) * 1976-04-07 1979-08-14 Fiber Industries, Inc. Method for making simulated spun-like ingrain yarn
US4228640A (en) * 1976-04-07 1980-10-21 Fiber Industries, Inc. Simulated spun-like ingrain yarn
DE2628774C2 (en) * 1976-06-26 1978-07-06 Zwirnerei Ackermann, Werk Der Ackermann-Goeggingen Ag, 7100 Heilbronn Method and device for producing a textured yarn or thread
US4170867A (en) * 1978-02-27 1979-10-16 Phillips Petroleum Company Spun-like continuous multifilament yarn

Also Published As

Publication number Publication date
EP0072881A1 (en) 1983-03-02
ATE18266T1 (en) 1986-03-15
EP0072881B1 (en) 1986-02-26

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee