JPS55122014A - Polyester fiber and its production - Google Patents
Polyester fiber and its productionInfo
- Publication number
- JPS55122014A JPS55122014A JP2565079A JP2565079A JPS55122014A JP S55122014 A JPS55122014 A JP S55122014A JP 2565079 A JP2565079 A JP 2565079A JP 2565079 A JP2565079 A JP 2565079A JP S55122014 A JPS55122014 A JP S55122014A
- Authority
- JP
- Japan
- Prior art keywords
- intrinsic viscosity
- stage
- fibers
- production
- polyester fiber
- 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
Abstract
PURPOSE: Fibers of polyester with low intrinsic viscosity is drawn and heat-set under specific conditions to produce high tenacity rayon-like fibers with industrial advantage.
CONSTITUTION: A polyethylene terephthalate with an intrinsic viscosity of 0.39W 0.6, which has been measured in o-chlorophenol at 25°C, is melt spun and subjected to multi-stage drawing at a total draw ratio of 5.5W7.5 at room temperature to 210°C. At this time, the drawing temperature at the second stage is set higher than that of the first stage drawing, thus forming the objective fiber having an intrinsic viscosity of 0.38W0.55, filament denier of 7W22, tenacity of 4.5W8.5g/d, elongation of 1W5% when 2.25g/d load is applied and dry-heat shrinkage of less than 9% at 150°C.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2565079A JPS55122014A (en) | 1979-03-07 | 1979-03-07 | Polyester fiber and its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2565079A JPS55122014A (en) | 1979-03-07 | 1979-03-07 | Polyester fiber and its production |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55122014A true JPS55122014A (en) | 1980-09-19 |
Family
ID=12171688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2565079A Pending JPS55122014A (en) | 1979-03-07 | 1979-03-07 | Polyester fiber and its production |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122014A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50118019A (en) * | 1974-03-04 | 1975-09-16 | ||
JPS52121530A (en) * | 1976-04-05 | 1977-10-13 | Unitika Ltd | Method for hot drawing of polyester filament yarns having high tensile strength |
JPS5331852A (en) * | 1976-09-02 | 1978-03-25 | Toray Industries | Reinforcing cord and its manufacture |
-
1979
- 1979-03-07 JP JP2565079A patent/JPS55122014A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50118019A (en) * | 1974-03-04 | 1975-09-16 | ||
JPS52121530A (en) * | 1976-04-05 | 1977-10-13 | Unitika Ltd | Method for hot drawing of polyester filament yarns having high tensile strength |
JPS5331852A (en) * | 1976-09-02 | 1978-03-25 | Toray Industries | Reinforcing cord and its manufacture |
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