JPS5771418A - Melt-spinning of copolyamide - Google Patents

Melt-spinning of copolyamide

Info

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
Application number
JP14847080A
Other languages
Japanese (ja)
Other versions
JPS6363644B2 (en
Inventor
Kazunari Kudo
Tsutomu Sugie
Shunichi Kiriyama
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.)
Unitika Ltd
Original Assignee
Unitika Ltd
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 Unitika Ltd filed Critical Unitika Ltd
Priority to JP14847080A priority Critical patent/JPS5771418A/en
Publication of JPS5771418A publication Critical patent/JPS5771418A/en
Publication of JPS6363644B2 publication Critical patent/JPS6363644B2/ja
Granted legal-status Critical Current

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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
JP14847080A 1980-10-22 1980-10-22 Melt-spinning of copolyamide Granted JPS5771418A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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