EP0178644A1 - Verfahren und Vorrichtung für das Herstellen von Webketten aus thermoplastischen synthetischen Monofilamentgarnen - Google Patents

Verfahren und Vorrichtung für das Herstellen von Webketten aus thermoplastischen synthetischen Monofilamentgarnen Download PDF

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Publication number
EP0178644A1
EP0178644A1 EP85113114A EP85113114A EP0178644A1 EP 0178644 A1 EP0178644 A1 EP 0178644A1 EP 85113114 A EP85113114 A EP 85113114A EP 85113114 A EP85113114 A EP 85113114A EP 0178644 A1 EP0178644 A1 EP 0178644A1
Authority
EP
European Patent Office
Prior art keywords
warp
yarn
rolls
yarns
spinning
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
EP85113114A
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English (en)
French (fr)
Other versions
EP0178644B1 (de
Inventor
Franco Tajana
Vito Ballarati
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.)
Val Lesina SpA
Original Assignee
Val Lesina SpA
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 Val Lesina SpA filed Critical Val Lesina SpA
Publication of EP0178644A1 publication Critical patent/EP0178644A1/de
Application granted granted Critical
Publication of EP0178644B1 publication Critical patent/EP0178644B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • 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
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • 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
    • D01D7/00—Collecting the newly-spun products
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H5/00—Beaming machines
    • D02H5/02—Beaming machines combined with apparatus for sizing or other treatment of warps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments
    • B65H2701/313—Synthetic polymer threads
    • B65H2701/3132—Synthetic polymer threads extruded from spinnerets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires

Definitions

  • warp section i.e. a warp containing a fractional number of yarns relative to the total number of yarns which will be placed on the weaving loom, it being possible to obtain a weaving warp suitable for direct use on the loom by unwinding a plurality of warp sections and rewinding them onto a single beam by a process known as assembly winding.
  • assembly winding a process known as assembly winding.
  • warps for weaving end-use there is not restriction intended on the use of such warps to any particular textile application.
  • the spinning device contains one or more single nozzle spinneret(s). After cooling and oiling, the monofilaments corresponding to the nozzles are wound up individually on the take-up device, each monofilament being wound up on its own spool or package.
  • the spinning head can house only a limited number of spinnerets and the subsequent filament cooling device and take-up device(s) can serve only one single spinning head with the said limited number of yarns.
  • spinnerets provided with a plurality of nozzles are used, and all the yarns emerging from such a spinneret are cooled, oiled and parallel-wound on a single spool.
  • This spool containing a plurality of individual yarns, is then unwound by the rolling take-off method and the individual yarns are rewound, each yarn being wound onto its own single spool.
  • the weaving warp is then obtained by the warping of a large number of yarns coming from as many spools (or "packages") placed on a creel.
  • the object of the present invention is to provide a system for the production of weaving warps wherein the spinning device is able to produce simultaneously the exact number of yarns required to form the weaving warp.
  • the method of the present invention is proper for the production of weaving warps from monofilament thermoplastic yarns of the following types: polyester, polyamides, polypropylene.
  • the device for accomplishing the process according to the invention shown schematically in the figures comprises:
  • the quipment also incorporates:
  • the melt spinning head may have a single spinneret having a number of nozzles equal to the number of yarns constituting the weaving warp, or it may be provided with a plurality of spinnerets, with the total nozzle number equal to the number of yarns constituting the said warp.
  • the number of yarns required for a weaving warp is normally at least 500.
  • the equipment is substantially reduced compared to the traditional systems, in that it is not necessary to pass through the single spool ("package") stage, the yarns obtained from spinning being used directly to form the weaving warp.
  • the warp manufacturing process is therefor absolutely continuous. It is not divided into two separate stages, as in the traditional systems, where there is a separate spinning stage with the yarn being taken up on spools, followed by a second warping stage, starting from such spools previously loaded onto a feed creel.
  • the production of weaving warps with a single spinning head and a single collection device is therefore made possible, in contrast to the traditional systems, where it is necessary to have a large number of spinning heads for each weaving warp, and the warping operation is moreover carried out in a subsequent stage completely separated from the melt spinning stage.
  • an essential element in the process, and in the related equipment is constituted by the device for the accumulation and recovery of the yarn sheet arising from the continuous spinning stage: it allows the replacement of the warping beam without the need to stop the spinning process, it being only necessary to reduce the spinning speed.
  • the above device may be constituted in particular by two sets of rolls both positioned horizontally and with their axes perpendicular to the direction of travel of the yarn sheet, the rolls of the first set (19), located at the lower level, being in a fixed position, whilst those of the second set (20) are in a staggered position relative to the rolls of the first set, and can moreover be shifted vertically downwards.
  • the upper set of rolls is lowered beneath the stationary set, until the position (2) is reached, thus compelling the yarn sheet to run along a looped path.
  • the amount of yarn which can be accumulated in such a way will be proportional to the number of rolls and to the maximum possible distance between the stationary rolls and the movable rolls.
  • the accumulation device starts operating simultaneously with the yarn sheet nipping, culting and taping device during a beam change. It is obvious that, in the process according to the present invention, every known device for the accumulation and changing of the warp beam may be used.
  • the spinning process may be advantageously integrated with a yarn sheet drawing device using two sets of rolls, preferably constituted by a main roll of greater diameter and two pressure rolls per each set, the'peripheral velocity of the second set being greater than that of the first system, so that the ratio of the two relative peripheral velocities is equal to the desired yarn draw ratio.
  • a yarn sheet drawing device using two sets of rolls, preferably constituted by a main roll of greater diameter and two pressure rolls per each set, the'peripheral velocity of the second set being greater than that of the first system, so that the ratio of the two relative peripheral velocities is equal to the desired yarn draw ratio.
  • thermoplastic resin used for polystyrene foam
  • a high wind-up speed allows nearly completely drawn yarns to be obtained, such yarns being suitable for direct use in weaning.
  • incompletely drawn yarns are obtained, and the warps so obtained can be advantageously drawn by using the wet warp-drawing process, as disclosed in the earlier Italian Patent Applications N° 19907/82, 23476/83 and 24050/83, of the present Applicant.
  • a typical characteristic of the novel process for the preparation of warps is that it permits extremely high yarn wind-up speeds, speeds in excess of 6000 m/min, without any mechanical problems being evident, as the collecting beam is anchored on both sides in the winding machine.
  • various known systems may be used, essentially constituted by rubber clamping jaws, by devices for feeding and applying an upper and a lower layer of adhesive tape, and by a yarn sheet cutting device.
  • a weaving warp constituted by 580 monofilament yarns of round cross section was prepared, collected on a small hosiery beam having a distance of 22 inches between the flanges.
  • the spinning was carried out at a polymer temperature of 297°C through a spinneret of rectangular shape, of dimensions
  • the oiling device was calibrated so as to obtain 0.4% of oil on the yarn.
  • the final count of the yarn was 20 denier, and the residual elongation was 34%.
  • Example 2 Starting from the thermoplastic resin in Example 1, and using the same spinneret, the spinnig was carried out at 299°C, the spin finish application device having been calibrated so as to obtain 0.55% of finish on the yarn.
  • the final yarn count was 20 denier, and the residual elongation was 63%.
  • the substrate of monofilament yarn After subsequent dyeing with a dye sensitive enough to reveal possible irregularities, the substrate of monofilament yarn showed uniform dye absorption.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
EP85113114A 1984-10-19 1985-10-16 Verfahren und Vorrichtung für das Herstellen von Webketten aus thermoplastischen synthetischen Monofilamentgarnen Expired EP0178644B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT23236/84A IT1175869B (it) 1984-10-19 1984-10-19 Metodo ed apparecchiatura per la produzione di catene di tessitura in filo sintetico termoplastico monofilamento
IT2323684 1984-10-19

Publications (2)

Publication Number Publication Date
EP0178644A1 true EP0178644A1 (de) 1986-04-23
EP0178644B1 EP0178644B1 (de) 1988-08-17

Family

ID=11205197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85113114A Expired EP0178644B1 (de) 1984-10-19 1985-10-16 Verfahren und Vorrichtung für das Herstellen von Webketten aus thermoplastischen synthetischen Monofilamentgarnen

Country Status (7)

Country Link
EP (1) EP0178644B1 (de)
JP (1) JPS61102447A (de)
KR (1) KR900005995B1 (de)
DE (1) DE3564457D1 (de)
ES (1) ES8609517A1 (de)
IN (1) IN163597B (de)
IT (1) IT1175869B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4116194A1 (de) * 1991-05-17 1992-11-19 Sucker & Franz Mueller Gmbh Verfahren und vorrichtung zum verbinden der kettbahnen beim zettelbaumpartiewechsel
US6090485A (en) * 1996-10-16 2000-07-18 E. I. Du Pont De Nemours And Company Continuous filament yarns

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102007314B1 (ko) * 2017-06-30 2019-08-05 주식회사 건호 차광용 용융압출식 편평사 제조방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR881312A (fr) * 1941-07-03 1943-04-21 Schlafhorst & Co W Procédé et appareil pour l'enroulement des nappes de fils
US2964827A (en) * 1956-06-04 1960-12-20 Du Pont Sping beaming
DE3018373A1 (de) * 1980-05-14 1981-11-19 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Verfahren zum schaeren von kettfaeden fuer web- und wirkmaschinen sowie schaeranlage zur durchfuehrung des verfahrens
DE3233279A1 (de) * 1982-09-08 1984-03-08 W. Schlafhorst & Co, 4050 Mönchengladbach Vorrichtung zum zurueckholen, speichern und wiederabgeben einer fadenschar

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR881312A (fr) * 1941-07-03 1943-04-21 Schlafhorst & Co W Procédé et appareil pour l'enroulement des nappes de fils
US2964827A (en) * 1956-06-04 1960-12-20 Du Pont Sping beaming
DE3018373A1 (de) * 1980-05-14 1981-11-19 Karl Mayer Textil-Maschinen-Fabrik Gmbh, 6053 Obertshausen Verfahren zum schaeren von kettfaeden fuer web- und wirkmaschinen sowie schaeranlage zur durchfuehrung des verfahrens
DE3233279A1 (de) * 1982-09-08 1984-03-08 W. Schlafhorst & Co, 4050 Mönchengladbach Vorrichtung zum zurueckholen, speichern und wiederabgeben einer fadenschar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TEXTILBETRIEB, vol. 102, no. 9, September 1984, page 32, Würzburg, DE; "Draw-warping - A new generation in warp preparation" *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4116194A1 (de) * 1991-05-17 1992-11-19 Sucker & Franz Mueller Gmbh Verfahren und vorrichtung zum verbinden der kettbahnen beim zettelbaumpartiewechsel
DE4116194B4 (de) * 1991-05-17 2004-09-09 Sucker-Müller-Hacoba GmbH & Co Vorrichtung zum Verbinden von Kettbahnen beim Zettelbaumpartiewechsel
US6090485A (en) * 1996-10-16 2000-07-18 E. I. Du Pont De Nemours And Company Continuous filament yarns

Also Published As

Publication number Publication date
ES547987A0 (es) 1986-09-01
KR860003367A (ko) 1986-05-23
EP0178644B1 (de) 1988-08-17
JPH0143049B2 (de) 1989-09-18
IT8423236A0 (it) 1984-10-19
DE3564457D1 (en) 1988-09-22
IT8423236A1 (it) 1986-04-19
ES8609517A1 (es) 1986-09-01
KR900005995B1 (ko) 1990-08-20
IN163597B (de) 1988-10-15
JPS61102447A (ja) 1986-05-21
IT1175869B (it) 1987-07-15

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