JPS5658007A - Production of polybutylene terephthalate fiber - Google Patents

Production of polybutylene terephthalate fiber

Info

Publication number
JPS5658007A
JPS5658007A JP13178179A JP13178179A JPS5658007A JP S5658007 A JPS5658007 A JP S5658007A JP 13178179 A JP13178179 A JP 13178179A JP 13178179 A JP13178179 A JP 13178179A JP S5658007 A JPS5658007 A JP S5658007A
Authority
JP
Japan
Prior art keywords
temperature
undrawn yarns
spinning
hot
polybutylene terephthalate
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
JP13178179A
Other languages
Japanese (ja)
Inventor
Masanori Takeuchi
Shusei Nakamura
Masaharu Yamamoto
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 JP13178179A priority Critical patent/JPS5658007A/en
Publication of JPS5658007A publication Critical patent/JPS5658007A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: Undrawn yarns that are produced by effecting melt-spinning at a specific spinning speed are drawn with hot feed rolls or a hot pin whose temperature is controlled in a specified range to produce the titled fibers without application of complicated spinning and drawing conditions, moreover with no yarn break.
CONSTITUTION: A polymer of substantially polybutylene terephthalate, that is, consisting of more than 85mol% of butylene terephthalate as a structure unit, is melt spun at 1,100W1,800m/min to give undrawn yarns. The drawing of the undrawn yarns is effected with hot feed rolls or hot pin in the drawing zone where the temperature T(°C) satisfies the equation [T0 is a temperature at which the heat-shrinkage stress becomes 0, when it is measured under the conditions where the yarn is loaded with a weight of 1/10 denier and the tomperature-rising rate is 2.5°C/sec] and T≤110 to produce the objective fibers.
COPYRIGHT: (C)1981,JPO&Japio
JP13178179A 1979-10-15 1979-10-15 Production of polybutylene terephthalate fiber Pending JPS5658007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13178179A JPS5658007A (en) 1979-10-15 1979-10-15 Production of polybutylene terephthalate fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13178179A JPS5658007A (en) 1979-10-15 1979-10-15 Production of polybutylene terephthalate fiber

Publications (1)

Publication Number Publication Date
JPS5658007A true JPS5658007A (en) 1981-05-20

Family

ID=15065993

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13178179A Pending JPS5658007A (en) 1979-10-15 1979-10-15 Production of polybutylene terephthalate fiber

Country Status (1)

Country Link
JP (1) JPS5658007A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148912A (en) * 1980-04-21 1981-11-18 Toray Ind Inc Production of polybutylene terephthalate fiber

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955920A (en) * 1972-09-29 1974-05-30
JPS5164019A (en) * 1974-11-28 1976-06-03 Teijin Ltd Horiesuteruseni oyobi sonoseizohoho
JPS5427024A (en) * 1977-08-01 1979-03-01 Toyobo Co Ltd Production of butylene terephthalate polyester fibers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955920A (en) * 1972-09-29 1974-05-30
JPS5164019A (en) * 1974-11-28 1976-06-03 Teijin Ltd Horiesuteruseni oyobi sonoseizohoho
JPS5427024A (en) * 1977-08-01 1979-03-01 Toyobo Co Ltd Production of butylene terephthalate polyester fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148912A (en) * 1980-04-21 1981-11-18 Toray Ind Inc Production of polybutylene terephthalate fiber

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