JPS56169812A - Preparation of ultrafine fiber having high physical property - Google Patents

Preparation of ultrafine fiber having high physical property

Info

Publication number
JPS56169812A
JPS56169812A JP7011180A JP7011180A JPS56169812A JP S56169812 A JPS56169812 A JP S56169812A JP 7011180 A JP7011180 A JP 7011180A JP 7011180 A JP7011180 A JP 7011180A JP S56169812 A JPS56169812 A JP S56169812A
Authority
JP
Japan
Prior art keywords
fibers
thinned
preparation
physical property
ultrafine 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
Application number
JP7011180A
Other languages
Japanese (ja)
Inventor
Masao Umezawa
Kazuyoshi Okamoto
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.)
Toray Industries Inc
Original Assignee
Toray Industries Inc
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 Toray Industries Inc filed Critical Toray Industries Inc
Priority to JP7011180A priority Critical patent/JPS56169812A/en
Publication of JPS56169812A publication Critical patent/JPS56169812A/en
Pending legal-status Critical Current

Links

Landscapes

  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: To obtain the titled ultrafine fibers, useful for artificial leather, etc., and having a high strength, by drawing fibers, capable of being thinned, and containing a high-polymerization degree polyester having a specific intrinsic viscosity at a high draw ratio.
CONSTITUTION: Fibers, e.g. island-in -sea type composite fibers, capable of being thinned into plural fibers by the thinning treatment, and containing a polyester having an intrinsic viscosity ≥0.75, preferably polyethylene terephthalate, are drawn at a draw ratio of preferably 3.3 or more to give a residual elongation ≤50%, preferably ≤40%, and the resultant fibers are then thinned, e.g. removal of the sea component by the dissolution, to give the amined fibers.
COPYRIGHT: (C)1981,JPO&Japio
JP7011180A 1980-05-28 1980-05-28 Preparation of ultrafine fiber having high physical property Pending JPS56169812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7011180A JPS56169812A (en) 1980-05-28 1980-05-28 Preparation of ultrafine fiber having high physical property

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7011180A JPS56169812A (en) 1980-05-28 1980-05-28 Preparation of ultrafine fiber having high physical property

Publications (1)

Publication Number Publication Date
JPS56169812A true JPS56169812A (en) 1981-12-26

Family

ID=13422101

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7011180A Pending JPS56169812A (en) 1980-05-28 1980-05-28 Preparation of ultrafine fiber having high physical property

Country Status (1)

Country Link
JP (1) JPS56169812A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825362A (en) * 1971-08-12 1973-04-02
JPS5551820A (en) * 1978-09-14 1980-04-15 Toray Ind Inc Production of polyester split fiber

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4825362A (en) * 1971-08-12 1973-04-02
JPS5551820A (en) * 1978-09-14 1980-04-15 Toray Ind Inc Production of polyester split fiber

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