EP0013498A1 - Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden - Google Patents

Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden Download PDF

Info

Publication number
EP0013498A1
EP0013498A1 EP79302957A EP79302957A EP0013498A1 EP 0013498 A1 EP0013498 A1 EP 0013498A1 EP 79302957 A EP79302957 A EP 79302957A EP 79302957 A EP79302957 A EP 79302957A EP 0013498 A1 EP0013498 A1 EP 0013498A1
Authority
EP
European Patent Office
Prior art keywords
filaments
class
yarn
section
denier
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
EP79302957A
Other languages
English (en)
French (fr)
Other versions
EP0013498B1 (de
Inventor
Lawrence Everett Blackmon
John Robert Dees
Wayne Thomas Mowe
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.)
Celanese Corp
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 EP0013498A1 publication Critical patent/EP0013498A1/de
Application granted granted Critical
Publication of EP0013498B1 publication Critical patent/EP0013498B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/24—Bulked yarns or threads, e.g. formed from staple fibre components with different relaxation characteristics
    • 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
    • D01D5/20—Formation of filaments, threads, or the like with varying denier along their length
    • 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
    • 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
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/18—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by combining fibres, filaments, or yarns, having different shrinkage characteristics

Definitions

  • the invention relates to the art or melt-spun synthetic yarns and processes for their production, and more particularly to such yarns which combine high bulk with a wool-like hand and improved moisture transport.
  • a process for producing a self-crimping yarn comprising first and second types of filaments, the process comprising spinning the first type of filaments by generating first and second individual streams of molten polymer of fiber-forming molecular weight, the individual streams travelling at different velocities; converging the individual streams side-by-side to form a combined stream; and quenching the combined stream to form a combined filament, spinning the second type of filaments by extruding a third stream of molten polymer of fiber-forming molecular weight from a helical orifice selected to give a filament with a helical cross section and lower shrinkage than the combined filament at a given common spinning speed; and quenching the third stream into a filament; withdrawing the filaments from the streams at the given common spinning speed; and combining the filaments into a yarn.
  • each of the streams is of polyester polymer.
  • the spinning speed is selected such that the yarn has a shrinkage below 20%.
  • the spinning speed is selected such that the yarn has a shrinkage below 82.
  • the spinning speed is between 5000 and 6000 yards per minute, and each of the first type of filaments is polyester.
  • the helical cross-section is open at its inner end.
  • a multifilament yarn comprising first and second classes of filaments; each of the first class of filaments having a periodic variation in denier greater than + 25% about a mean value and possessing latent crimp; each of the second class of filaments having a helical cross-section and having lower shrinkage than the shrinkage of the filaments in the first class.
  • each of the second class of filaments has a denier larger than the average denier of the first class of filaments.
  • the first class of filaments are formed from polyester.
  • the helical cross-section is open at its inner end.
  • a multifilament yarn comprising first and second classes of filaments; each of che filaments of the first class having a periodic variation in denier of greater than ⁇ 25% about a mean value and possessing a developed crimp; each of the filaments of the second class having a helical cross-section and being longer than the filaments of the first class whereby the filaments of the second class protrude from the yarn in loops.
  • each of the second class of filaments has a denier larger than the average denier of the first class of filaments.
  • the first class of filaments are formed from polyester.
  • the helical cross-section is open at its inner end.
  • polyester polymer as used herein means fiber-forming polymers at least 85% by weight of which is formable by reacting a dihydric alcohol with terephthalic acid. Polyester typically is formed either by direct esterification of ethylene glycol with terephthalic acid or by aster interchange between ethylene glycol and dimethylterephthalate.
  • FIGURES 1 and 2 illustrate the preferred embodiment of a spinneret design which can be employed for obtaining the first type of filaments according to the invention.
  • the spinneret includes a large counterbore 20 formed in the upper surface 21 of spinneret plate 22.
  • Small counterbore 24 is formed in the bottom of and at one side of large counterbore 20.
  • a large capillary 26 extends from the bottom of large counterbore 20 at the side opposite small counterbore 24, and connects the bottom of large counterbore 20 with the lower surface 28 of plate 22.
  • Small capillary 30 connects the bottom of couterbore 24 with surface 28.
  • Capillaries 26 and 30 are each inclined four degrees from the vertical, and thus have an included angle of eight degrees.
  • Counterbore 20 has a diameter of 0.113 inch (2.87 mm.), while counterbore-24 has a diameter of 0.052 inch (1.32 mm.).
  • Capillary 26 has a diameter of 0.016 inch (0.406 mm.) and a length of 0.146 inch (3.71 mm.), while capillary 30 - has a diameter of 0.009 inch (0.229 mm.)' and a length of 0.032 inch (0.813 mm.).
  • Land 32 separates capillaries 26 and 30 as they emerge at surface 28, and has a width of 0.0043 inch (0.109 mm.).
  • Plate 22 has a thickness of 0.554 inch (14.07 mm.). Capillaries 26 and 30 together with counterbores 20 and 24-constitute a combined orifice for spinning various novel and useful filaments according to the invention, as will be more particularly described hereinafter.
  • FIGURE 3 is a graph showing how polyester filament shrinkage varies with spinning speed for two illustrative cases of jet stretch.
  • the curve in dotted lines shows that the shrinkage falls from about 65% at 3400 ypm (about 3100 mpm) to about 5% at 5000 ypm (about 4500 mpm) when using spinneret capillaries having diameters of 0.063 inch (1.6 mm.) and when simultaneously spinning 34 such filaments to be false-twist draw-textured to yield a textured yarn having 150 denier.
  • the solid curve shows that the shrinkage drops off at higher speeds when using spinneret capillaries having diameters of 0.015 inch (0.38 mm.) when similarly simultaneously spinning 34 such filaments to be false-twist draw-textured to yield a textured yarn having 150 denier.
  • Using different capillary diameters produces a family of curves between, to the left, and to the right of those illustrated.
  • the curves also can be shifted (for a given capillary diameter) by varying the polymer throughput. In other words, the curves can be shifted by varying the jet stretch, which is the ratio of yarn speed just after solidification to average speed of molten polymer in the capillary.
  • the spinneret is so designed that one of the individual streams has a velocity in its capillary between 2.0 and 7 times (preferably between 3.5 and 5.5 times) the velocity of the other of the streams in its capillary. Further advantages are obtained when the faster of the two screams has a smaller cross-sectional area than the slower of the streams, particularly in degree of crimp and spinning stability. Productivity is increased when the spinning speed is selected such that the combined filament has a shrinkage less than 20%, and is maximized when the shrinkage is less than 8%.
  • melt-spinnable polymers as a class, are achievable by use of spinnerets wherein the streams intersect outside the spinneret.
  • molten polyester polymer of normal textile molecular weight is metered at a temperature of 290°C. through a spinneret having 34 combined orifices as above specifically disclosed.
  • the polymer throughput is adjusted to produce filaments of 4 average denier per filament at a spinning speed of 5200 yards per minute, the molten streams being conventionally quenched into filaments by transversely directed quenching air.
  • the slower stream attenuates between the points of attachment 38 and the loops of the faster stream become straightened until the faster stream is brought into continuous contact with the slower stream.
  • the slower stream attenuates more between than at the points of first attachment, so chat the resulting combined stream has a cross-section which is larger at the points of first attachment than in the regions between these points.
  • the resulting combined stream is then further attenuated somewhat until it is solidified into a filament 40 by the transverse quench air.
  • Each solidified filament 40 has non-round cross-sectional areas which vary repetitively along its length, and, after being heated while under low tension, has variable pitch S-twisted and Z-twisted helically coiled sections, the sections being. less tightly coiled in regions of large cross-sectional area than in regions of small cross-sectional area.
  • the filament cross-sectional area repetively varies at a repetition rate of about one per meter, although this can be varied by modifying the spinning conditions and the geometry of the spinneret passages.
  • a multiple orifice spinneret will typically provide somewhat different repetition rates among the several resulting streams and filaments.
  • An example of this is qualitatively shown in FIGURE 7, wherein is shown that various orifices produce somewhat different repetition rates as determined by stroboscopic examination of the combined streams just below the sppinneret face. The repetition rate is proportiona to the stroboscope frequency bringing about apparent cessation (or freezing) of movement of the thick and thin regions of the filament.
  • the filaments have non-round cross-sections which vary by more than ⁇ 10% along the length of the filaments, and alternating S-twisted and Z-twisted helically crimped sections, the variations in cross-sectional areas being out of phase from filament to filament and the helically crimped sections being out of phase from filament to filament.
  • the filaments vary repetitively along their lengths by more than ⁇ 25% (preferably more than ⁇ 30%) about a mean value in cross-sectional area.
  • the effects are particularly pronounced when the yarn has a Uster unevenness of at least 2.5% U.
  • the Uster measurement is made by using the Uster Evenness Tester, Model C, together with integrator ITG-101 for this instrument.
  • the yarn speed is 182.8 meters per minute (200 ypm), the service selector is set on normal, and the sensitivity selector is set to 12.5%.
  • the % U is read from the integrator after a sample run time of 5 minutes.
  • FIGURE 8 shows the preferred embodiment of spinneret design which can be employed for obtaining the second type of filament according to the invention.
  • the orifice is in the form of a spiral slot through the spinneret plate and extending over more than 360 degrees.
  • An exemplary slot may have a width of 0.1 mm. and a length of 4 mm. along the length of the spiral. If the clearance between the inner end and the nearest intermediate portion of the slot is sufficiently small, the molten stream issuing therefrom will bridge the gap between the inner end of the spiral cross-sectioned stream and the nearest intermediate portion of the stream cross-section, forming a filament with a spiral cross-section closed at its inner end.
  • the filament having a cross-section comprising a spiral closed at its inner end will have a more powerful crimp than one having a cross-section comprising a spiral open at its inner end.
  • the latter will, however, have substantially increased moisture transport and moisture holding capacity as compared to the former, which is itself superior to ordinary round filaments.
  • the second class of filaments may be spun from spinneret orifices selected such that, at the given common spinning speed, the filaments of the first class will have a higher shrinkage than those of the second class.
  • molten polyethylene terephthalate polymer of normal molecular weight for textile apparel yams is extruded simultaneously through two spinnerets, one of which contains 34 combined orifices as above described and the other of which contains 17 spiral

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Artificial Filaments (AREA)
  • Multicomponent Fibers (AREA)
EP19790302957 1978-12-21 1979-12-19 Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden Expired EP0013498B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97213178A 1978-12-21 1978-12-21
US972131 1978-12-21

Publications (2)

Publication Number Publication Date
EP0013498A1 true EP0013498A1 (de) 1980-07-23
EP0013498B1 EP0013498B1 (de) 1982-09-22

Family

ID=25519216

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790302957 Expired EP0013498B1 (de) 1978-12-21 1979-12-19 Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden

Country Status (5)

Country Link
EP (1) EP0013498B1 (de)
JP (1) JPS5584409A (de)
KR (1) KR840000346B1 (de)
CA (1) CA1108832A (de)
DE (1) DE2963755D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126519A2 (de) * 1983-02-24 1984-11-28 Celanese Corporation Verfahren zur Herstellung von selbstkräuselndem Polyestergarn
CN111733470A (zh) * 2020-06-12 2020-10-02 温州大学 一种自卷曲复合吸湿纤维、制备方法及织物

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106565A (ja) * 1982-12-10 1984-06-20 帝人株式会社 吸水性ポリエステル繊維の製造法
DE69019120T2 (de) * 1989-06-09 1995-10-26 Otsuka Kagaku K.K., Osaka Künstlicher rasen, florgarn für einen künstlichen rasen sowie verfahren zur herstellung eines derartigen rasens.
JP2534397B2 (ja) * 1990-09-21 1996-09-11 株式会社クラレ 超偏平繊維の製造方法
EP4165241A4 (de) * 2020-06-16 2024-07-31 Aladdin Mfg Corp Elastisches weichgarn mit hohem verschleiss

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1103728A (en) * 1964-06-19 1968-02-21 Snia Viscosa Improvements in or relating to the production of crimpable synthetic yarns
US3444684A (en) * 1967-01-10 1969-05-20 Southwire Co Method of forming a multi-strand cable
DE2539272A1 (de) * 1974-09-06 1976-03-18 Vyzk Ustav Pletarsky Texturierter hochbausch-hybridfaden und verfahren zu seiner herstellung
GB1454522A (en) * 1973-02-23 1976-11-03 Ici Ltd Bulked polyester textile yarns
DE2807418A1 (de) * 1977-02-23 1978-08-24 Toray Industries Bauschgarn, insbesondere hochbauschgarn, und verfahren zu seiner herstellung
DE2811794A1 (de) * 1977-03-18 1978-09-21 Monsanto Co Kraeuselfaser und verfahren zu ihrer herstellung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009883B1 (de) * 1978-10-02 1982-07-28 Monsanto Company Selbstkräuselndes Garn, dessen Herstellung und texturiertes Garn mit wolliger Griffigkeit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1103728A (en) * 1964-06-19 1968-02-21 Snia Viscosa Improvements in or relating to the production of crimpable synthetic yarns
US3444684A (en) * 1967-01-10 1969-05-20 Southwire Co Method of forming a multi-strand cable
GB1454522A (en) * 1973-02-23 1976-11-03 Ici Ltd Bulked polyester textile yarns
DE2539272A1 (de) * 1974-09-06 1976-03-18 Vyzk Ustav Pletarsky Texturierter hochbausch-hybridfaden und verfahren zu seiner herstellung
DE2807418A1 (de) * 1977-02-23 1978-08-24 Toray Industries Bauschgarn, insbesondere hochbauschgarn, und verfahren zu seiner herstellung
DE2811794A1 (de) * 1977-03-18 1978-09-21 Monsanto Co Kraeuselfaser und verfahren zu ihrer herstellung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0126519A2 (de) * 1983-02-24 1984-11-28 Celanese Corporation Verfahren zur Herstellung von selbstkräuselndem Polyestergarn
EP0126519A3 (en) * 1983-02-24 1985-09-11 Celanese Corporation Process for producing self-crimping polyester yarn
CN111733470A (zh) * 2020-06-12 2020-10-02 温州大学 一种自卷曲复合吸湿纤维、制备方法及织物
CN111733470B (zh) * 2020-06-12 2022-11-08 温州大学 一种自卷曲复合吸湿纤维、制备方法及织物

Also Published As

Publication number Publication date
JPS6330404B2 (de) 1988-06-17
KR840000346B1 (ko) 1984-03-26
JPS5584409A (en) 1980-06-25
DE2963755D1 (en) 1982-11-04
CA1108832A (en) 1981-09-15
EP0013498B1 (de) 1982-09-22

Similar Documents

Publication Publication Date Title
CA1154215A (en) Self crimping yarn and process
US4489543A (en) Self-crimping yarn
EP0001880B1 (de) Mehrkomponenten Polyester-Zuführgarn für die Strecktexturierung, Verfahren zu dessen Herstellung und Verfahren zum Strecktexturieren dieses Garnes
US4332757A (en) Process for continuous filament yarn with wool-like hand
EP0009883B1 (de) Selbstkräuselndes Garn, dessen Herstellung und texturiertes Garn mit wolliger Griffigkeit
US4351147A (en) Spun-like yarn
CA1107472A (en) Textured yarn and process
US4661404A (en) Self-crimping polyester yarn
US4332758A (en) Method for producing polyester wool-like yarn
US4562029A (en) Self-crimping polyester yarn
EP0126519B1 (de) Verfahren zur Herstellung von selbstkräuselndem Polyestergarn
EP0013498A1 (de) Verfahren zur Herstellung selbstkräuselnder Garne, latente Kräuselfäden enthaltende Multifilamentgarne und Multifilamentgarne mit entwickelten Kräuselfäden
KR870000413B1 (ko) 콘쥬게이트 필라멘트와 그 제조방법
US4419313A (en) Self crimping yarn and process
US4720314A (en) Process for producing self-crimping polyester yarn
EP0088744A2 (de) Leicht spleissbare Verbundfaser
US4349604A (en) Continuous filament yarn with wool-like hand
EP0007725B1 (de) Gespinnste-ähnliches Garn mit abwechselnde Denier aufweisenden Filamenten und Verfahren zur Herstellung dieses Garns
EP0007237B1 (de) Gesponnen wirkendes Garn
US4330591A (en) Wool-like yarn with moisture transport
EP0041820B1 (de) Verfahren zur Herstellung kräuselfähigen Polyestergarns
US4414801A (en) Process for making spun-like yarn with variable denier filaments
CA1123562A (en) Self crimping yarn and process
US4505867A (en) Process for polyester yarns
CA1129732A (en) Continuous filament yarn with wool-like hand

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: 2963755

Country of ref document: DE

Date of ref document: 19821104

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;FIBER INDUSTRIES INC.

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

ITPR It: changes in ownership of a european patent

Owner name: CESSIONE;CELANESE CORPORATION

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19931129

Year of fee payment: 15

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

Ref country code: NL

Payment date: 19931231

Year of fee payment: 15

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

Ref country code: FR

Payment date: 19940915

Year of fee payment: 16

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

Ref country code: GB

Payment date: 19940919

Year of fee payment: 16

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

Ref country code: DE

Payment date: 19941230

Year of fee payment: 16

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

Ref country code: BE

Effective date: 19941231

BERE Be: lapsed

Owner name: CELANESE CORP.

Effective date: 19941231

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

Ref country code: NL

Effective date: 19950701

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19950701

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

Ref country code: GB

Effective date: 19951219

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19951219

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

Ref country code: FR

Effective date: 19960830

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

Ref country code: DE

Effective date: 19960903

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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