FR2402721A1 - Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section - Google Patents

Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section

Info

Publication number
FR2402721A1
FR2402721A1 FR7727101A FR7727101A FR2402721A1 FR 2402721 A1 FR2402721 A1 FR 2402721A1 FR 7727101 A FR7727101 A FR 7727101A FR 7727101 A FR7727101 A FR 7727101A FR 2402721 A1 FR2402721 A1 FR 2402721A1
Authority
FR
France
Prior art keywords
pref
filament
sheath
core
cores
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
FR7727101A
Other languages
French (fr)
Other versions
FR2402721B1 (en
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 FR7727101A priority Critical patent/FR2402721A1/en
Publication of FR2402721A1 publication Critical patent/FR2402721A1/en
Application granted granted Critical
Publication of FR2402721B1 publication Critical patent/FR2402721B1/fr
Granted 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
    • D01D5/36—Matrix structure; 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Multicomponent Fibers (AREA)

Abstract

A multi-cored composite filament of the sheath-core type contains >=2 different polymers. Each core (2) is surrounded by several others. The sheath component (3, 4 and 5) constitutes 35, pref. 10 (5) wt. % of the total polymeric constituents. Most of the cores have a transverse section ranging from approximately quadrilateral to hexagonal, but can range from quadrilateral to nonagonal. The transverse sections of the cores at the edge of the filament (1) are approximately quadrilateral or pentagonal. The core polymer is pref. PET, and the sheath polystyrene or a styrene/vinyl monomer copolymer. The core:sheath intrinsic viscosity ratio is pref. between 0.63 and 1.10. The number of cores is pref. 7-1000, partic. 10-200. The filaments can be used to make leather substitutes, knitted and woven fabrics, felts, filters, paper, and in materials for furniture, decoration, sports areas, medical items, etc.
FR7727101A 1977-09-07 1977-09-07 Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section Granted FR2402721A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7727101A FR2402721A1 (en) 1977-09-07 1977-09-07 Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7727101A FR2402721A1 (en) 1977-09-07 1977-09-07 Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section

Publications (2)

Publication Number Publication Date
FR2402721A1 true FR2402721A1 (en) 1979-04-06
FR2402721B1 FR2402721B1 (en) 1983-02-25

Family

ID=9195135

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7727101A Granted FR2402721A1 (en) 1977-09-07 1977-09-07 Multicored filament with low sheath proportion - easily convertible to extra-fine filaments of polygonal cross=section

Country Status (1)

Country Link
FR (1) FR2402721A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188689A (en) * 1958-05-27 1965-06-15 Du Pont Spinneret assembly
US3531368A (en) * 1966-01-07 1970-09-29 Toray Industries Synthetic filaments and the like
FR2058144A5 (en) * 1970-07-16 1971-05-21 Toray Industries
FR2175017A1 (en) * 1972-03-07 1973-10-19 Toray Industries
FR2392149A1 (en) * 1976-06-17 1978-12-22 Toray Industries WOOL WOOL, VELVET APPEARANCE, AND METHOD OF PREPARATION

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3188689A (en) * 1958-05-27 1965-06-15 Du Pont Spinneret assembly
US3531368A (en) * 1966-01-07 1970-09-29 Toray Industries Synthetic filaments and the like
FR2058144A5 (en) * 1970-07-16 1971-05-21 Toray Industries
FR2175017A1 (en) * 1972-03-07 1973-10-19 Toray Industries
FR2392149A1 (en) * 1976-06-17 1978-12-22 Toray Industries WOOL WOOL, VELVET APPEARANCE, AND METHOD OF PREPARATION

Also Published As

Publication number Publication date
FR2402721B1 (en) 1983-02-25

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