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GB1087939A - Crimpable filaments of synthetic linear polymers and process for making them - Google Patents

Crimpable filaments of synthetic linear polymers and process for making them

Info

Publication number
GB1087939A
GB1087939A GB762865A GB762865A GB1087939A GB 1087939 A GB1087939 A GB 1087939A GB 762865 A GB762865 A GB 762865A GB 762865 A GB762865 A GB 762865A GB 1087939 A GB1087939 A GB 1087939A
Authority
GB
United Kingdom
Prior art keywords
filaments
melt
spinneret
streams
separate
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
GB762865A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB1087939A publication Critical patent/GB1087939A/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
    • D01D5/08—Melt spinning methods
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • D01D5/23—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool by asymmetrical cooling of filaments, threads, or the like, leaving the spinnerettes
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

1,087,939. Artificial filaments having crimp potential. FARBWERKE HOECHST A.G. Feb. 22, 1965 [Feb. 21, 1964], No. 7628/65. Heading B5B. Three-dimensionally crimpable filaments are made by melt spinning a homogeneous melt of linear polymers, the process comprising producing two separate streams of the homogeneous melt, the ratio of the gravimetric rate of flow of the streams being within the range of 1: 1À5 to 1: 4, extruding them together without mixing them through the or each extrusion orifice of a spinneret, withdrawing the thus formed filament from the spinneret, cooling and thereby solidifying the filament and cold drawing the solidified filament at a draw ratio of 3 to 4. The linear polymer may be a polyester, a polyamide or a polyalkylene. The two separate streams of melt having different gravimetric rates of flow may be produced and supplied to the spinning head by means of two separate extruders each communicating with the spinning head through its own separate duct and supplying the spinning head at a gravimetric rate of flow differing from that supplied by the other extruder. The separate streams of melt may be joined in the spinneret immediately before leaving the spinneret extrusion orifice or in the inlet to the extrusion orifice. The two separate streams of melt may be fed to a spinneret having several extrusion orifices in such a manner that each stream is uniformly distributed over all the orifices and the subdivided separate streams are united again in each orifice just before the united streams leave the orifices in the form of filaments. The solidified drawn filaments may be maintained for 1 to 5 minutes at a temperature within the range of 120‹ to 180‹ C. or treated for this period with boiling water or saturated steam at atmospheric pressure whereby the filaments acquire a three-dimensional crimp of very high retentivity. Staple fibres obtained from the filaments may be crimped in the same manner.
GB762865A 1964-02-21 1965-02-22 Crimpable filaments of synthetic linear polymers and process for making them Expired GB1087939A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964F0042075 DE1238610B (en) 1964-02-21 1964-02-21 Process for the production of crimped threads from synthetic linear polymers

Publications (1)

Publication Number Publication Date
GB1087939A true GB1087939A (en) 1967-10-18

Family

ID=7098930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB762865A Expired GB1087939A (en) 1964-02-21 1965-02-22 Crimpable filaments of synthetic linear polymers and process for making them

Country Status (7)

Country Link
AT (1) AT258452B (en)
BE (1) BE660081A (en)
CH (1) CH432715A (en)
DE (1) DE1238610B (en)
FR (1) FR1431147A (en)
GB (1) GB1087939A (en)
NL (1) NL6502107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867925A (en) * 1985-04-04 1989-09-19 Akzo N.V. Process for the manufacture of polyester industrial yarn

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3497585A (en) * 1966-06-09 1970-02-24 Monsanto Co Self-crimping filament process
GB2017575B (en) * 1978-04-04 1982-07-07 Monsanto Co Self-crimping yarn process
DE2964897D1 (en) * 1978-07-17 1983-03-31 Fiber Industries Inc Spun-like yarn

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE970603C (en) * 1943-05-13 1958-10-09 American Viscose Corp Spinning device for the production of frizzy artificial threads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867925A (en) * 1985-04-04 1989-09-19 Akzo N.V. Process for the manufacture of polyester industrial yarn
US5092381A (en) * 1985-04-04 1992-03-03 Akzo N.V. Polyester industrial yarn and elastomeric objects reinforced with said yarn

Also Published As

Publication number Publication date
NL6502107A (en) 1965-08-23
AT258452B (en) 1967-11-27
FR1431147A (en) 1966-03-11
CH432715A (en) 1967-03-31
BE660081A (en) 1965-08-23
DE1238610B (en) 1967-04-13

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