EP0065788A2 - Procédé de filage de filaments conjugués - Google Patents

Procédé de filage de filaments conjugués Download PDF

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Publication number
EP0065788A2
EP0065788A2 EP82105614A EP82105614A EP0065788A2 EP 0065788 A2 EP0065788 A2 EP 0065788A2 EP 82105614 A EP82105614 A EP 82105614A EP 82105614 A EP82105614 A EP 82105614A EP 0065788 A2 EP0065788 A2 EP 0065788A2
Authority
EP
European Patent Office
Prior art keywords
slot
spun
stream
interface
orifice
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.)
Ceased
Application number
EP82105614A
Other languages
German (de)
English (en)
Other versions
EP0065788A3 (fr
Inventor
Jing-Peir Yu
James Ernest Bromley
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of EP0065788A2 publication Critical patent/EP0065788A2/fr
Publication of EP0065788A3 publication Critical patent/EP0065788A3/fr
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor

Definitions

  • the invention relates to the art of spinning conjugate filaments having at least two interfaces between different polymers.
  • Conjugate filaments having a single interface between different polymeric components are likewise known, as typified by' Hayashi U.S. Patent 4,051,287, the disclosure of which is incorporated herein by reference.
  • alternating segments of polyamide and polyester are spun in side-by-side adhering relationship to form a hollow filament.
  • the Hayashi spinning process involves forming a large number of separate polymer interfaces prior to the spinneret orifice, which entails a considerable complexity in the conjugation plates prior to the spinneret itself.
  • the conjugation plates upstream of the spinneret can be considerably simplified by appropriate design of the spinneret orifice.
  • a spinning process for producing a spun stream comprising a plurality of separate spun interfaces from a given single interface between different polymers in a supply stream, the given interface extending generally parallel to the direction of the supply stream, the process comprising :
  • the polymers in the supply stream are in sheath-core relationship.
  • the slot meanders back and forth across the interface.
  • the solidified spun stream is thereafter separated into a plurality of sub-filaments.
  • the preferred spinneret construction includes several generally arched or horseshoe-shaped slots 20 in spinneret blank 22 arranged symmetrically about a central point, the open ends of the horseshoe shape facing inwardly.
  • the several slots 20 constitute a combined orifice for spinning a single filament. Slots 20 extend entirely through blank 22 except for a recessed web region 24 at the apex of each slot 20.
  • the two different polymers are fed to the combined orifice as a sheath-core supply stream, with dotted circle 26 representing the interface between the two polymers.
  • the adjacent ends of adjacent slots 20 are sufficiently close that the streams issuing therefrom unite just below the spinneret.
  • the molten spun stream is thus a hollow structure composed of alternating axially extending segments of the two polymers. Surface tension and other effects tend to make the molten spun stream approach a hollow circular cross-section prior to solidffication, substantially as shown in Hayashi U.S. Patent 4051287, Figure 1.
  • the spinning process thus produces a spun stream comprising a plurality of separate spun interfaces from the single sheath-core interface between the different polymers in the supply stream, the sheath-core supply interface extending generally parallel to the direction of the supply stream.
  • This is accomplished in this embodiment by passing the supply stream through a spinneret orifice having the form of an elongated slot.
  • a first portion of the supply interface passes through and extends transversely across the width of the slot at a first location along the length of the slot, and a second portion of the supply interface passes through and extends transversely across the width of the slot at a second location along the length of the slot.
  • each individual slot 20 provides for a spun sub-stream having two interfaces, and the illustrated combined orifice provides a combined spun stream having 12 interfaces between different polymeric components.
  • Nylon 66 polymer and polyethylene terephthalate polymer are extruded at a temperature of 290°C. through the combined orifice, the nylon polymer being the core of the sheath-core stream approaching the combined orifice.
  • Equal volumes of the two polymers are supplied, with the extrusion rate selected to produce a conjugate filament having a denier of 19.5 at a spinning speed of 1500 yards (about 1350 meters) per minute.
  • a quench zone just beneath the spinneret and 1.5 meters in height is supplied with quenching air at 20 0 C., the air being directed horizontally onto the polymer stream and having a speed of 25 meters per minute. Below the quench zone, steam is applied to the filament, a conventional finish is applied, and the filament is wound.
  • the spun filament is then drawn at 65 meters per minute and at a draw ratio of 2.16 over a contact heater at 132°C., the heater being 0.4 meters long.
  • the resulting drawn yarn can be mechanically worked to break the conjugate filament into 12 subfilaments.
  • Example II Seventeen of the above spun filaments are spun simultaneously and collected as a multifilament yarn under the spinning conditions of Example I.
  • the spun yarn is then draw-textured at 540 meters per minute over a two meter heater set at 220°C.
  • the resulting textured yarn when separated into sub-filaments and relaxed, is very voluminous and has high covering power.
  • Example I is repeated, except that the spinning speed is increased to 4500 meters per minute while the denier of the conjugate filament is reduced to 4.
  • the resulting sub-filaments after separation and immersion in boiling water, form a highly voluminous and lofty yarn.
  • Fabrics formed from the conjugate yarn acquire a very soft hand and increased bulk and covering power when the fabric is mechanically worked enough to separate the yarn into sub-filaments. Simple exposure of the fabric to boiling water is adequate in many instances, since the flexing of the yarn involved in certain fabric formations separates the sub-filaments.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)
EP82105614A 1979-01-02 1979-12-31 Procédé de filage de filaments conjugués Ceased EP0065788A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84879A 1979-01-02 1979-01-02
US848 1979-01-02

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP79303081A Division-Into EP0013186B1 (fr) 1979-01-02 1979-12-31 Procédé de filage par fusion d'un filament conjugué susceptible de se fendre; filament conjugué, à frisure latente, susceptible de se fendre; procédé de refente d'un tel filament
EP79303081A Division EP0013186B1 (fr) 1979-01-02 1979-12-31 Procédé de filage par fusion d'un filament conjugué susceptible de se fendre; filament conjugué, à frisure latente, susceptible de se fendre; procédé de refente d'un tel filament

Publications (2)

Publication Number Publication Date
EP0065788A2 true EP0065788A2 (fr) 1982-12-01
EP0065788A3 EP0065788A3 (fr) 1984-11-28

Family

ID=21693265

Family Applications (2)

Application Number Title Priority Date Filing Date
EP79303081A Expired EP0013186B1 (fr) 1979-01-02 1979-12-31 Procédé de filage par fusion d'un filament conjugué susceptible de se fendre; filament conjugué, à frisure latente, susceptible de se fendre; procédé de refente d'un tel filament
EP82105614A Ceased EP0065788A3 (fr) 1979-01-02 1979-12-31 Procédé de filage de filaments conjugués

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP79303081A Expired EP0013186B1 (fr) 1979-01-02 1979-12-31 Procédé de filage par fusion d'un filament conjugué susceptible de se fendre; filament conjugué, à frisure latente, susceptible de se fendre; procédé de refente d'un tel filament

Country Status (5)

Country Link
EP (2) EP0013186B1 (fr)
JP (1) JPS55128016A (fr)
KR (1) KR840001633B1 (fr)
CA (1) CA1145907A (fr)
DE (1) DE2966478D1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246219A (en) * 1979-03-27 1981-01-20 Monsanto Company Multisegmented filament spinning process
EP0074445A1 (fr) * 1981-09-15 1983-03-23 Monsanto Company Procédé de filage et fil multifilament
EP0074446B1 (fr) * 1981-09-15 1985-05-22 Monsanto Company Fil multifilament et procédé de filage
US5093061A (en) * 1982-03-08 1992-03-03 Monsanto Deep dyeing conjugate yarn processes
JPS6075665A (ja) * 1983-10-01 1985-04-30 東レ株式会社 多成分繊維のフイブリル化絡合方法
EP0376625B1 (fr) * 1988-12-28 1996-09-18 Asahi Kasei Kogyo Kabushiki Kaisha Fibre acrylique et procédé pour sa fabrication
CN109957856B (zh) * 2017-12-25 2022-07-19 上海凯赛生物技术股份有限公司 一种并列复合纤维及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117906A (en) * 1961-06-20 1964-01-14 Du Pont Composite filament
JPS5228918B2 (fr) * 1972-05-23 1977-07-29
JPS581221B2 (ja) * 1974-12-12 1983-01-10 帝人株式会社 シカガワヨウヘンシヨクブツノ セイゾウホウホウ
US4246219A (en) * 1979-03-27 1981-01-20 Monsanto Company Multisegmented filament spinning process

Also Published As

Publication number Publication date
EP0013186B1 (fr) 1983-12-07
KR830001428A (ko) 1983-04-30
DE2966478D1 (en) 1984-01-12
KR840001633B1 (ko) 1984-10-12
CA1145907A (fr) 1983-05-10
EP0013186A1 (fr) 1980-07-09
JPS55128016A (en) 1980-10-03
EP0065788A3 (fr) 1984-11-28

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Inventor name: BROMLEY, JAMES ERNEST

Inventor name: YU, JING-PEIR