JPS5477719A - Production of special stretch yarn - Google Patents
Production of special stretch yarnInfo
- 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
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
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) |
-
1977
- 1977-11-30 JP JP14369977A patent/JPS5477719A/en active Pending
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