EP0144617B1 - Procédé pour l'obtention de chaînes ou fractions de chaînes enroulées sur des ensouples, à partir d'une série de fils thermoplastiques continus partiellement étirés - Google Patents

Procédé pour l'obtention de chaînes ou fractions de chaînes enroulées sur des ensouples, à partir d'une série de fils thermoplastiques continus partiellement étirés Download PDF

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Publication number
EP0144617B1
EP0144617B1 EP84112119A EP84112119A EP0144617B1 EP 0144617 B1 EP0144617 B1 EP 0144617B1 EP 84112119 A EP84112119 A EP 84112119A EP 84112119 A EP84112119 A EP 84112119A EP 0144617 B1 EP0144617 B1 EP 0144617B1
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EP
European Patent Office
Prior art keywords
yarns
yarn
beams
wound
interlacing
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
EP84112119A
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German (de)
English (en)
Other versions
EP0144617A2 (fr
EP0144617A3 (en
EP0144617B2 (fr
Inventor
Vito Ballarati
Franco Tajana
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
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Publication of EP0144617A3 publication Critical patent/EP0144617A3/en
Application granted granted Critical
Publication of EP0144617B1 publication Critical patent/EP0144617B1/fr
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Classifications

    • 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
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments

Definitions

  • This invention concerns a process for the preparation of chains or fractions wound on beams, made from continuous, completely-drawn and interlaced thermoplastic yarns, suitable for use on looms for the production of textile products of all types.
  • the known processes for the preparation of continuous, thermoplastic-polymer yarns for textile use involve spinning the filaments from the molten polymer, cooling them, combining them to form the yarn and then drawing the yarn.
  • Drawing orients the molecules of the filaments and thus gives them the required physical and mechanical characteristics for making them suitable for textile use.
  • the yarn is completely drawn right after being spun, by means of rollers having differential rotational speeds and then wound up on the cops.
  • This process requires expensive spinning machines and, on the average, has a lower production capacity than the above mentioned.
  • the beams, upon which the previously warped yarns have been wound, are mounted on support creels.
  • the properly-arranged and parallel yarns are passed through a special apparatus which includes an impregnation bath and squeezing rollers.
  • the yarns are then dried by means of hot air, infrared radiation or heated cylinders, after which they are wound onto beams by winding machine.
  • a recent method described in EP-A-91549, shows the possibility of combining the two separate phases, drawing and sizing, into a single phase, thus providing obvious technical and economical advantages.
  • thermoplastic yarns having filaments which are substantially parallel to each other and not completely drawn are simultaneously drawn when immersed in a liquid at controlled temperature, and then subjected to an interlacing process on each individual yarn before being sized and then finally wound.
  • the process according to the invention permits the use of a starting yarn for the preparation of the aforesaid chains or fractions for textile use which is not completely drawn, being as obtained from the spinning process in accordance with known techniques.
  • This present invention constitutes an additional technical development over and above that described in EP-A-91549. It consists in the carrying out of the complete drawing separately, in a thermostatic bath, by means of tension rollers, followed immediately thereafter by the treatment of each individual yarn, while still wet, to interlacing process before entering the sizing bath.
  • the not less than 24 cops mounted on the feed creel are each wound with yarn coming from the spinning machine.
  • the yarn is not completely drawn.
  • the yarns unwind from the cops at a constant tension and are kept parallel to each other by means of a comb guide.
  • the yarns pass through a feed and support roller system.
  • the rollers have a constant peripheral velocity.
  • the yarns pass into a vat of a liquid, which is kept at a prefixed controlled temperature so that the filaments of the yarn can be drawn.
  • the yarn leaves the vat and passes through a system of traction rollers which have a constant peripheral velocity that is greater than that of the feed rollers.
  • the system of feed and tensioning rollers can also be located in the vat of the liquid at controlled temperature.
  • the traction-roller system can also squeeze out all the excess liquid from the yarn.
  • the desired simultaneous action of drawing and molecular orientation of the individual filaments is obtained, between the feed and traction rollers, by means of the combined action of the differential peripheral velocities, which generates filament tension, and the softening of the polymer, due to the heat of the thermostatic bath.
  • the still-wet yarns pass through the interlacing devices, which are standard devices and which entangle the filaments by means of a jet of fluid at high velocity.
  • These devices are arranged in a bank, are equal in number to that of the yarns and each one acts separately on each individual yarn.
  • the yarns enter the sizing device. After being dried, the yarns are finally wound onto beams or similar devices by a winding machine.
  • Another possibility for feeding the apparatus consists in winding the yarns onto beams, small beams, large reels, on any such similar device, using a winding machine, and then feeding from these, rather than directly from the spools mounted on the creel. In this case, it is possible to unite several fractional beams at the entrance to the feed rollers from the drawing phase.
  • the new method, the object of the present invention, whereby several continuous thermoplastic yarns are arranged parallel to each other, drawn simultaneously and then interlaced before the sizing phase, permits a considerable cost saving, as compared to traditional means.
  • this invention is characterized by the sizing treatment following the interlacing step.
  • the process steps sequences of the invention affords the manufacture of yarns having better characteristics of cohesion between the filaments; in particular such cohesion characteristics can be further improved by subjecting the yarns while still wet to the interlacing treatment.
  • Another outstanding advantage provided by this invention consists in the possibility of substituting the more usual types of interlacing devices with known voluminizing devices, such as the known Taslan process, for example, which used a high-velocity fluid jet. These devices obviously provide interlacing and voluminization at the same time.
  • the very great advantage of being able to combine, in one plant, the drawing phase, voluminization phase, sizing phase and preparation of chains or fractions on weaving beams can, therefoce, be obtained. With known procedures, in fact, the drawn yarn is fed into costly voluminizing machines.
  • This invention also provides, furthermore, an outstanding economic advantage by making it possible to obtain a better quality yarn, a better performing yarn in the loom and increased productivity with existing traditional equipment by adding the drawing and interlacing device to the equipment. This modification causes no appreciable change in standard warping systems, which remain substantially just as they are.
  • the yarns are warped under a tension of 10 g, passing them through the blades of a rectilinear comb.
  • the yarns are anchored and dragged with a tension of 10 g by a three-roller system, which roll together at a constant peripheral speed of 148 meters/min.
  • the yarns are then immersed in a vat of demineralized water, which is held at a constant temperature of 80°C.
  • the yarns Upon leaving the drawing and squeezing cylinders, the yarns pass through the interlacing jets, which are fed by compressed air under 3 Atm of pressure.
  • the yarns are then immersed in a vat containing a hot-glue bath, consisting of a 10% water solution of Adex-Twe@ acrylic glue made by the Cesalpinia company, and maintained at a constant temperature of 90°C.
  • a hot-glue bath consisting of a 10% water solution of Adex-Twe@ acrylic glue made by the Cesalpinia company, and maintained at a constant temperature of 90°C.
  • the sizing speed is kept slighthly under 240 meters/min., so as to obtain a certain amount of yarn swelling, which favors the absorption of sizing.
  • the yarns are then dried by passing them through hot-air ovens.
  • the yarns then receive thermal fixing by passing into contact with steam- heated cylinders, the temperature of the cylinders ranging from 105°C to 90°C from the first one to the last one.
  • the yarns When leaving the fixing cylinders, the yarns are wound on beams measuring 1800 mm in height and in six fractions, each measuring 12000 m in length.
  • the beam is loaded onto a water loom and wafted with texturized polyester yarn having a count of 56 Dtex and 24 filaments, at a speed of 490 beats/min., with a cloth weave and a density of 30 wefts/cm.
  • the fabric is then dyed in a jet-type cord-dyeing machine. Dispers Blue Color Index 056 dispersed dye is used.
  • the fabric is centrifuged, dried in hot air, passed through a stenter machine and thermo-fixed at 180°C at 25 meters/min. The obtained fabric has a height of 140 cm.
  • Dyeing anx fixing operations are then carried out on the obtained knitted fabric, as done in the previous example. Examination by passing the fabric under the specular instrument reveals perfect evenness of weave and dye homogeneity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Woven Fabrics (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Claims (4)

1. Procédé d'ensouplage de fils continus synthétiques, comprenant les étapes d'étirage d'au moins 24 fils parallèles entre eux, constitués de filaments synthétiques continus substantiellement parallèles partiellement étirés dans une cuve contenant un liquide, en parallèle les uns aux autres, d'encollage, de séchage et d'enroulage des fils parallèles sur une ensouple de tissage, caractérisé en ce que, après l'étirage, les fils sont soumis individuellement à une traitement d'entrelacement mettant en oeuvre un jet de fluide et ensuite à un traitement d'encollage.
2. Procédé selon la revendication 1, caractérisé en ce que le traitement d'entrelacement est mis en oeuvre alors que le fil est encore humide.
3. Procédé selon la revendication 1, caractérisé en ce que le traitement d'entralacement est mis en oeuvre au moyen d'un dispositif qui procure également du grossissement au fil.
4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les filaments synthétiques sont du type suivant: des polyesters, des polyamides, des polyéthylènes, des polypropylènes et leurs variantes.
EP84112119A 1983-12-06 1984-10-10 Procédé pour l'obtention de chaînes ou fractions de chaînes enroulées sur des ensouples, à partir d'une série de fils thermoplastiques continus partiellement étirés Expired - Lifetime EP0144617B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2405083 1983-12-06
IT24050/83A IT1167591B (it) 1983-12-06 1983-12-06 Procedimento per ottenere catene o frazioni su subbi per tessitura a partire da una serie di fili termoplastici continui parzialmente stirati

Publications (4)

Publication Number Publication Date
EP0144617A2 EP0144617A2 (fr) 1985-06-19
EP0144617A3 EP0144617A3 (en) 1985-10-30
EP0144617B1 true EP0144617B1 (fr) 1988-07-06
EP0144617B2 EP0144617B2 (fr) 1993-09-29

Family

ID=11211691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112119A Expired - Lifetime EP0144617B2 (fr) 1983-12-06 1984-10-10 Procédé pour l'obtention de chaînes ou fractions de chaînes enroulées sur des ensouples, à partir d'une série de fils thermoplastiques continus partiellement étirés

Country Status (12)

Country Link
EP (1) EP0144617B2 (fr)
JP (1) JPS60126361A (fr)
KR (1) KR900008260B1 (fr)
BR (1) BR8405910A (fr)
CA (2) CA1240120A (fr)
DE (1) DE3472578D1 (fr)
ES (1) ES8600654A1 (fr)
GR (1) GR80662B (fr)
IE (1) IE55757B1 (fr)
IT (1) IT1167591B (fr)
MX (1) MX160199A (fr)
SU (1) SU1340594A3 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5364701A (en) * 1986-01-30 1994-11-15 E. I. Du Pont De Nemours And Company Mixed filament yarn of polyester filaments and nylon filaments
US5223197A (en) * 1986-01-30 1993-06-29 E. I. Du Pont De Nemours And Company Process of making mixed filament yarn
DE3602968A1 (de) * 1986-01-31 1987-08-06 Sucker & Franz Mueller Gmbh Verfahren und vorrichtung zum schlichten von filamentgarn
DE3724751A1 (de) * 1987-07-25 1989-02-09 Rhodia Ag Verfahren zur herstellung von auf zettelbaeumen oder teilkettbaeumen aufgewickelten teilketten oder auf kettbaeumen aufgewickelten ketten aus synthetischen filamentgarnen
US5008991A (en) * 1987-09-30 1991-04-23 Viscosuisse S.A. Device and process for intermingling a bundle of threads using a turbulent air stream
US5219503A (en) * 1990-06-21 1993-06-15 E. I. Du Pont De Nemours And Company Process of making nylon flat yarns
US5360667A (en) * 1990-06-21 1994-11-01 E. I. Du Pont De Nemours & Company Nylon flat yarns

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763526A (en) * 1971-07-26 1973-10-09 Owens Corning Fiberglass Corp Apparatus for clearing and texturing linear material
US4043010A (en) * 1974-08-14 1977-08-23 E. I. Du Pont De Nemours And Company Process for producing textured polyester yarn
DE2611547B2 (de) * 1976-03-18 1978-01-05 Bayer Ag, 5090 Leverkusen Verfahren und vorrichtung zum schaeren von teilkettbaeumen
IT1150212B (it) * 1982-03-02 1986-12-10 Val Lesina Spa Procedimento,d'imbozzimatura e stiro simultanei di una serie di fili termoplastici,continui a filamenti sostanzialmete paralleli,da impiegare per la produzione di tessuti

Also Published As

Publication number Publication date
IT1167591B (it) 1987-05-13
MX160199A (es) 1989-12-21
EP0144617A2 (fr) 1985-06-19
SU1340594A3 (ru) 1987-09-23
ES536839A0 (es) 1985-10-16
IT8324050A0 (it) 1983-12-06
CA1254372A (fr) 1989-05-23
IE55757B1 (en) 1991-01-02
EP0144617A3 (en) 1985-10-30
EP0144617B2 (fr) 1993-09-29
JPS60126361A (ja) 1985-07-05
IE842604L (en) 1985-06-06
CA1240120A (fr) 1988-08-09
ES8600654A1 (es) 1985-10-16
DE3472578D1 (en) 1988-08-11
KR900008260B1 (ko) 1990-11-10
BR8405910A (pt) 1985-09-17
GR80662B (en) 1985-02-12
JPH0333813B2 (fr) 1991-05-20
KR850004617A (ko) 1985-07-25

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