JPS54120729A - Production of polyamide yarn - Google Patents

Production of polyamide yarn

Info

Publication number
JPS54120729A
JPS54120729A JP2547678A JP2547678A JPS54120729A JP S54120729 A JPS54120729 A JP S54120729A JP 2547678 A JP2547678 A JP 2547678A JP 2547678 A JP2547678 A JP 2547678A JP S54120729 A JPS54120729 A JP S54120729A
Authority
JP
Japan
Prior art keywords
denier
speed
dyeing
spinneret
regulated
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
JP2547678A
Other languages
Japanese (ja)
Other versions
JPS5738686B2 (en
Inventor
Teruhiko Adachi
Hitoshi Ikeda
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP2547678A priority Critical patent/JPS54120729A/en
Publication of JPS54120729A publication Critical patent/JPS54120729A/en
Publication of JPS5738686B2 publication Critical patent/JPS5738686B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: In high-speed spinning of extremely fine polyamide yarns, the distance between the spinneret and the yarn collecting point is regulated in a specific range to produce title yarns having a crystal structure in which and γ-type α-type are adequately distributed, good flexibility, level dyeing properties and dyeing fastness.
CONSTITUTION: In the high-speed spinning of polycapramide at a taking-up speed exceeding 3,000 m/min to produce filaments of less than 1 denier, the distance, L in m, between the spinneret and the yarn collecting point is regulated in the range satisfying the equation [S is take-up speed in m/min, De is filament denier after take up in denier]. The resulting filaments have a specific crystal structure in which α-crystal form giving dyeing fastness and γ-crystal form giving soft feel because of its flexibility and good level-dyeing properties are adequately distributed with an optical birefringence (Δn) of over 0.045.
COPYRIGHT: (C)1979,JPO&Japio
JP2547678A 1978-03-08 1978-03-08 Production of polyamide yarn Granted JPS54120729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2547678A JPS54120729A (en) 1978-03-08 1978-03-08 Production of polyamide yarn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2547678A JPS54120729A (en) 1978-03-08 1978-03-08 Production of polyamide yarn

Publications (2)

Publication Number Publication Date
JPS54120729A true JPS54120729A (en) 1979-09-19
JPS5738686B2 JPS5738686B2 (en) 1982-08-17

Family

ID=12167088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2547678A Granted JPS54120729A (en) 1978-03-08 1978-03-08 Production of polyamide yarn

Country Status (1)

Country Link
JP (1) JPS54120729A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828012A (en) * 1971-08-17 1973-04-13
JPS4911329A (en) * 1972-05-08 1974-01-31

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828012A (en) * 1971-08-17 1973-04-13
JPS4911329A (en) * 1972-05-08 1974-01-31

Also Published As

Publication number Publication date
JPS5738686B2 (en) 1982-08-17

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