JPS5771418A - Melt-spinning of copolyamide - Google Patents
Melt-spinning of copolyamideInfo
- Publication number
- JPS5771418A JPS5771418A JP14847080A JP14847080A JPS5771418A JP S5771418 A JPS5771418 A JP S5771418A JP 14847080 A JP14847080 A JP 14847080A JP 14847080 A JP14847080 A JP 14847080A JP S5771418 A JPS5771418 A JP S5771418A
- Authority
- JP
- Japan
- Prior art keywords
- yarn
- hood
- copolyamide
- atmosphere
- spinneret
- 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.)
- Granted
Links
Landscapes
- Artificial Filaments (AREA)
Abstract
PURPOSE: The extruded yarn of aromatic copolyamide is passed through two specific zones under the spinneret which include atmosphere kept at specific temperatures to produce undrawn yarn having good drawability and uniform yarn properties and giving high-modulus and-strength yarn.
CONSTITUTION: A copolyamide containing aromatic amide units such as a copolymer from nylon 66 salt, p-phenylenediamine and terephthalic acid is melted and extruded through the spinneret kept at Ts°C (almost the same as that of the melted copolyamide). The resultant yarn is passed through the zone ranging from 5 to 20cm under the spinneret which is filled with an atmosphere (Hood H1) at T1°C satisfying equationIand the second zone that is 10W40cm below the hood H1 and filled with an atmosphere (Hood H2) at T2°C satisfying formulas II and III to produce the objective yarn. The hood H1 is preferably filled with an inert gas atmosphere and the temperature T1 is preferably lower than Ts and the difference between T1 and T2 are more than 50°C. The total length of H1 and H2 is preferably 20W60cm.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14847080A JPS5771418A (en) | 1980-10-22 | 1980-10-22 | Melt-spinning of copolyamide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14847080A JPS5771418A (en) | 1980-10-22 | 1980-10-22 | Melt-spinning of copolyamide |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5771418A true JPS5771418A (en) | 1982-05-04 |
JPS6363644B2 JPS6363644B2 (en) | 1988-12-08 |
Family
ID=15453462
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14847080A Granted JPS5771418A (en) | 1980-10-22 | 1980-10-22 | Melt-spinning of copolyamide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5771418A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4911332A (en) * | 1972-06-01 | 1974-01-31 | ||
JPS5584417A (en) * | 1978-12-20 | 1980-06-25 | Asahi Chem Ind Co Ltd | Copolyamide fiber |
-
1980
- 1980-10-22 JP JP14847080A patent/JPS5771418A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4911332A (en) * | 1972-06-01 | 1974-01-31 | ||
JPS5584417A (en) * | 1978-12-20 | 1980-06-25 | Asahi Chem Ind Co Ltd | Copolyamide fiber |
Also Published As
Publication number | Publication date |
---|---|
JPS6363644B2 (en) | 1988-12-08 |
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