GB1121314A - Polypropylene composite filaments and method for producing the same - Google Patents

Polypropylene composite filaments and method for producing the same

Info

Publication number
GB1121314A
GB1121314A GB1456466A GB1456466A GB1121314A GB 1121314 A GB1121314 A GB 1121314A GB 1456466 A GB1456466 A GB 1456466A GB 1456466 A GB1456466 A GB 1456466A GB 1121314 A GB1121314 A GB 1121314A
Authority
GB
United Kingdom
Prior art keywords
filaments
crimps
drawn
component
refringence
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.)
Expired
Application number
GB1456466A
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon Co 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
Priority claimed from JP4758065A external-priority patent/JPS4913932B1/ja
Application filed by Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Publication of GB1121314A publication Critical patent/GB1121314A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
    • D01D5/30—Conjugate filaments; Spinnerette packs therefor
    • D01D5/32—Side-by-side structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Multicomponent Fibers (AREA)

Abstract

1,121,314. Crimped conjugate polypropylene filaments. MITSUBISHI RAYON CO. Ltd. 1 April, 1966 [12 April, 1965; 5 Aug., 1965], No. 14564/66. Heading B5B. Crimped stereoregular polypropylene conju gate filaments in which the two components are disposed in side-by-side relationship and are bonded together along the length of the filament are produced by simultaneously melt extruding through the or each orifice of a spinneret into a gaseous cooling zone two polypropylene components one of which (component X) has an intrinsic viscosity [#], (measured in tetralin at 135‹ C.) of 1.4 to 3.0 and a birefringence of 9 x 10<SP>-3</SP> to 27 x 10<SP>-3</SP> and the other of which (component Y) has an intrinsic viscosity of 0.8 to 3.0 and a bi-refringence within a range corresponding to the area, a, b, c, d, e in Fig. 1, which is determined in accordance with the bi-refringence of component X (when the latter is in the form of an undrawn non-composite filament), drawing the resulting composite filaments at a temperature above 80‹ C. and then relaxing the drawn filaments so that they spontaneously develop crimps. Component X may have a bi-refringence of 14 x 10<SP>-3</SP> to 27 x 10<SP>-3</SP> and component Y may have a bi-refringence within a range corresponding to the area c, d, e, f, g, in Fig. 1. The drawn filaments may be subjected to heat treatment below 140‹ C. under tension sufficient to prevent the development of crimps and then to relaxation to develop crimps. After relaxing the drawn filaments to develop crimps, they may thereafter be subjected to tension sufficient to prevent the development of crimps and then further relaxed to develop crimps. The drawn filaments may be relaxed to develop crimps, then drawn at a draw ratio lower than that used in the first drawing step and finally again relaxed to redevelop crimps. The drawing of the undrawn filaments may be effected at a draw ratio of 0.4 to 0.9 time the maximum draw ratio. The undrawn filaments may be drawn at 100 to 140‹ C. The tension treatment and/or the redrawing step may be effected at a temperature within the range of room temperature to 130‹ C.
GB1456466A 1965-04-21 1966-04-01 Polypropylene composite filaments and method for producing the same Expired GB1121314A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2154165 1965-04-21
JP4758065A JPS4913932B1 (en) 1965-08-05 1965-08-05

Publications (1)

Publication Number Publication Date
GB1121314A true GB1121314A (en) 1968-07-24

Family

ID=26358620

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1456466A Expired GB1121314A (en) 1965-04-21 1966-04-01 Polypropylene composite filaments and method for producing the same

Country Status (3)

Country Link
BE (1) BE679797A (en)
DE (1) DE1660476A1 (en)
GB (1) GB1121314A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840846A (en) * 1986-09-12 1989-06-20 Chisso Corporation Heat-adhesive composite fibers and method for making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4115620A (en) * 1977-01-19 1978-09-19 Hercules Incorporated Conjugate filaments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4840846A (en) * 1986-09-12 1989-06-20 Chisso Corporation Heat-adhesive composite fibers and method for making the same

Also Published As

Publication number Publication date
DE1660476A1 (en) 1972-04-13
BE679797A (en) 1966-10-03

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