EP0013186A1 - Verfahren zum Schmelzspinnen eines spaltbaren konjugierten Filamentes, selbstkräuselndes spaltbares konjugiertes Filament; Verfahren zum Spalten eines solchen Filamentes - Google Patents

Verfahren zum Schmelzspinnen eines spaltbaren konjugierten Filamentes, selbstkräuselndes spaltbares konjugiertes Filament; Verfahren zum Spalten eines solchen Filamentes Download PDF

Info

Publication number
EP0013186A1
EP0013186A1 EP79303081A EP79303081A EP0013186A1 EP 0013186 A1 EP0013186 A1 EP 0013186A1 EP 79303081 A EP79303081 A EP 79303081A EP 79303081 A EP79303081 A EP 79303081A EP 0013186 A1 EP0013186 A1 EP 0013186A1
Authority
EP
European Patent Office
Prior art keywords
filament
filaments
sub
hollow
conjugate
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
EP79303081A
Other languages
English (en)
French (fr)
Other versions
EP0013186B1 (de
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 EP0013186A1 publication Critical patent/EP0013186A1/de
Application granted granted Critical
Publication of EP0013186B1 publication Critical patent/EP0013186B1/de
Expired legal-status Critical Current

Links

Images

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 conjugate filaments splittable into sub-filaments. More particularly, it relates to a process and product wherein the conjugate filament itself has no substantial texture while sub-filaments splittable therefrom have substantial latent torqueless helical crimp.
  • Conjugate filaments splittable into sub-filaments are known to the art, as typified by Hayashi U.S.-Patent 4,051,287. As disclosed therein, alternating segments of polyamide and polyester are spun in a side-by-side adhering relationship to form a hollow filament splittable into sub-filaments. Such sub-filaments can be of smaller denier than can be conventiently spun as separate filaments, lending a soft hand to fabrics made therefrom.
  • the sub-filaments of Hayashi are not disclosed as possessing significant crimp, and, as illustrated in Figure 10 of the patent, are substantially flat (untextured) even though the conjugate filament had been textured by the false-twist heat-set method before being split into sub-filaments.
  • conjugate filament splittable into sub-filaments having substantial latent torqueless helical crimp.
  • a process for melt-spinning a hollow conjugate filament splittable into spontaneously texturing sub-filaments comprising extruding a hollow molten stream formed from axially extending segments of dissimilar polymers arranged alternately in side-by-side adhering relationship to form the hollow molten stream; quenching the stream under given conditions to form a filament; and withdrawing the filament from the molten stream at a given spinning speed, the polymers, the given spinning speed and the given conditions being selected such that sub-filaments split from the filament possess substantial latent torqueless helical crimp.
  • some of the segments are of polyamide polymer and others of the segments are of polyester polymer.
  • the polyamide polymer is nylon 66 and the polyester polymer is polyethylene terephthalate.
  • a conjugate filament comprising sub-filaments releasably attached to one another in a side-by-side relationship, the filament being substantially free of crimp, the sub-filaments possessing substantial latent torqueless helical crimp.
  • the filament is hollow.
  • some of the sub-filaments are formed from a polyamide polymer and others of the sub-filaments are formed from a polyester polymer.
  • the polyamide polymer is nylon 66 and the polyester polymer is polyethylene terephthalate.
  • FIGURE is a bottom plan view (looking up) of the preferred spinneret orifice used in practicing the invention.
  • the preferred spinneret construction includes several generally arched or horseshoeshaped 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 dissimilar polymers are fed to the combined orifice as a sheath-core 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 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 stream approach a hollow circular cross- section prior to solidification, substantially as shown in Hayashi Figure 1.
  • Each polymer segment accordingly has a portion of its periphery exposed to quenching on the exterior of the hollow stream, and an opposite portion shielded and not so exposed since it lies in the interior.
  • the molten stream is exposed while under the stress of spinning to quenching sufficiently rapid as to produce substantial latent torqueless helical crimp in the sub-filaments splittable from the conjugate filament.
  • 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 12 meters in height is supplied with quenching air at 20°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 when mechanically worked to break the conjugate filament into 12 sub-filaments, develops substantial torqueless helical crimp when subjected to boiling water.
  • 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)
EP79303081A 1979-01-02 1979-12-31 Verfahren zum Schmelzspinnen eines spaltbaren konjugierten Filamentes, selbstkräuselndes spaltbares konjugiertes Filament; Verfahren zum Spalten eines solchen Filamentes Expired EP0013186B1 (de)

Applications Claiming Priority (2)

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

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP82105614A Division EP0065788A3 (de) 1979-01-02 1979-12-31 Verfahren zum Spinnen von konjugierten Filamenten
EP82105614A Division-Into EP0065788A3 (de) 1979-01-02 1979-12-31 Verfahren zum Spinnen von konjugierten Filamenten

Publications (2)

Publication Number Publication Date
EP0013186A1 true EP0013186A1 (de) 1980-07-09
EP0013186B1 EP0013186B1 (de) 1983-12-07

Family

ID=21693265

Family Applications (2)

Application Number Title Priority Date Filing Date
EP82105614A Ceased EP0065788A3 (de) 1979-01-02 1979-12-31 Verfahren zum Spinnen von konjugierten Filamenten
EP79303081A Expired EP0013186B1 (de) 1979-01-02 1979-12-31 Verfahren zum Schmelzspinnen eines spaltbaren konjugierten Filamentes, selbstkräuselndes spaltbares konjugiertes Filament; Verfahren zum Spalten eines solchen Filamentes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP82105614A Ceased EP0065788A3 (de) 1979-01-02 1979-12-31 Verfahren zum Spinnen von konjugierten Filamenten

Country Status (5)

Country Link
EP (2) EP0065788A3 (de)
JP (1) JPS55128016A (de)
KR (1) KR840001633B1 (de)
CA (1) CA1145907A (de)
DE (1) DE2966478D1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452535A1 (fr) * 1979-03-27 1980-10-24 Monsanto Co Procede de filage d'un filament a segments multiples
EP0074446A1 (de) * 1981-09-15 1983-03-23 Monsanto Company Multifilamentgarn und Spinnverfahren
EP0074445A1 (de) * 1981-09-15 1983-03-23 Monsanto Company Spinnverfahren und Multifilamentgarn
AU612918B2 (en) * 1988-12-28 1991-07-18 Asahi Kasei Kogyo Kabushiki Kaisha Acrylic synthetic fiber and process for preparation thereof
US5093061A (en) * 1982-03-08 1992-03-03 Monsanto Deep dyeing conjugate yarn processes

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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

Citations (2)

* 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
US4051287A (en) * 1974-12-12 1977-09-27 Teijin Limited Raised woven or knitted fabric and process for producing the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228918B2 (de) * 1972-05-23 1977-07-29
US4246219A (en) * 1979-03-27 1981-01-20 Monsanto Company Multisegmented filament spinning process

Patent Citations (2)

* 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
US4051287A (en) * 1974-12-12 1977-09-27 Teijin Limited Raised woven or knitted fabric and process for producing the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452535A1 (fr) * 1979-03-27 1980-10-24 Monsanto Co Procede de filage d'un filament a segments multiples
EP0074446A1 (de) * 1981-09-15 1983-03-23 Monsanto Company Multifilamentgarn und Spinnverfahren
EP0074445A1 (de) * 1981-09-15 1983-03-23 Monsanto Company Spinnverfahren und Multifilamentgarn
US5093061A (en) * 1982-03-08 1992-03-03 Monsanto Deep dyeing conjugate yarn processes
AU612918B2 (en) * 1988-12-28 1991-07-18 Asahi Kasei Kogyo Kabushiki Kaisha Acrylic synthetic fiber and process for preparation thereof

Also Published As

Publication number Publication date
EP0065788A3 (de) 1984-11-28
EP0013186B1 (de) 1983-12-07
DE2966478D1 (en) 1984-01-12
KR840001633B1 (ko) 1984-10-12
KR830001428A (ko) 1983-04-30
EP0065788A2 (de) 1982-12-01
CA1145907A (en) 1983-05-10
JPS55128016A (en) 1980-10-03

Similar Documents

Publication Publication Date Title
GB1215402A (en) Improved conjugate filaments and method for producing same
EP0455927B1 (de) Verfahren zur Herstellung einer teilweise lösbaren und spaltbaren Micro-Verbundfaser
US4351147A (en) Spun-like yarn
EP0013186A1 (de) Verfahren zum Schmelzspinnen eines spaltbaren konjugierten Filamentes, selbstkräuselndes spaltbares konjugiertes Filament; Verfahren zum Spalten eines solchen Filamentes
US2517946A (en) Method of producing yarn
EP0009883B1 (de) Selbstkräuselndes Garn, dessen Herstellung und texturiertes Garn mit wolliger Griffigkeit
US4246219A (en) Multisegmented filament spinning process
US4661404A (en) Self-crimping polyester yarn
US4562029A (en) Self-crimping polyester yarn
US3439084A (en) Thick and thin yarn and process for the preparation thereof
US3640670A (en) Spinnerette for extruding t-shaped filaments
US4110965A (en) Spun-like hand yarn process
KR870000413B1 (ko) 콘쥬게이트 필라멘트와 그 제조방법
US4325765A (en) High speed spinning of large dpf polyester yarn
US3489641A (en) Heterofilaments from polyamides and polyesters
US4392808A (en) Spinneret orifice cross-sections
EP0088744A2 (de) Leicht spleissbare Verbundfaser
US4419313A (en) Self crimping yarn and process
US3616633A (en) Tetralobal synthetic filament process for producing the same and article made therefrom
EP0013498B1 (de) Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden
EP0041820B1 (de) Verfahren zur Herstellung kräuselfähigen Polyestergarns
CA1108833A (en) Spun-like yarn with variable denier filaments
EP0007237B1 (de) Gesponnen wirkendes Garn
CN1403634A (zh) 异形异收缩涤纶复合长丝的制造方法
CN1403638A (zh) 一种采用热管纺丝制造异形异收缩涤纶复合长丝的方法

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

17P Request for examination filed
ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL

REF Corresponds to:

Ref document number: 2966478

Country of ref document: DE

Date of ref document: 19840112

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19841102

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19841122

Year of fee payment: 6

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19841231

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19851231

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19861231

BERE Be: lapsed

Owner name: MONSANTO CY

Effective date: 19861231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19870701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19870831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19870901

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881118