JPS5477719A - Production of special stretch yarn - Google Patents

Production of special stretch yarn

Info

Publication number
JPS5477719A
JPS5477719A JP14369977A JP14369977A JPS5477719A JP S5477719 A JPS5477719 A JP S5477719A JP 14369977 A JP14369977 A JP 14369977A JP 14369977 A JP14369977 A JP 14369977A JP S5477719 A JPS5477719 A JP S5477719A
Authority
JP
Japan
Prior art keywords
yarn
twisting
heater
guide
roll
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.)
Pending
Application number
JP14369977A
Other languages
Japanese (ja)
Inventor
Hiroyuki Kotari
Kazuo Tomiita
Hisao Inuyama
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
Priority to JP14369977A priority Critical patent/JPS5477719A/en
Publication of JPS5477719A publication Critical patent/JPS5477719A/en
Pending legal-status Critical Current

Links

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

PURPOSE: A guide is provided next to the heater in the yarn stream to reduce the twisting number of polyester fibers and simultaneously drawing and false-twisting are conducted under specific conditions, thereby producing flattened stretch yarns with dry feeling and good draping properties.
CONSTITUTION: Polyester undrawn yarn with an optical birefringence (Δn) is fed to feed roll 2 and subjected to drawing between roll 2 and drawing roll 6 and simultaneous false twisting. When twisting imparted to the yarn by twister 5 climbs up first heater 3, guide 4 is provided next to heater 3 downstream to inhibit the twisting to such an extent that the twisting number of the running yarn is adjusted to 30W90 % of that imparted by twister 5. At the same time drawing and false twisting under heating are conducted under conditions where the ratio of tension at the downstream side 1 at the upper stream side from guide 4 is 1.2W 1.4 to fuse continuously the center part of the yarn. Then the resulting yarn is flattened by pressing to produce the objective stretch yarn.
COPYRIGHT: (C)1979,JPO&Japio
JP14369977A 1977-11-30 1977-11-30 Production of special stretch yarn Pending JPS5477719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14369977A JPS5477719A (en) 1977-11-30 1977-11-30 Production of special stretch yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14369977A JPS5477719A (en) 1977-11-30 1977-11-30 Production of special stretch yarn

Publications (1)

Publication Number Publication Date
JPS5477719A true JPS5477719A (en) 1979-06-21

Family

ID=15344899

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14369977A Pending JPS5477719A (en) 1977-11-30 1977-11-30 Production of special stretch yarn

Country Status (1)

Country Link
JP (1) JPS5477719A (en)

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