EP0098230A1 - Verfahren und Vorrichtung zum Herstellen von Coregarn aus Fasern - Google Patents

Verfahren und Vorrichtung zum Herstellen von Coregarn aus Fasern Download PDF

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Publication number
EP0098230A1
EP0098230A1 EP83420096A EP83420096A EP0098230A1 EP 0098230 A1 EP0098230 A1 EP 0098230A1 EP 83420096 A EP83420096 A EP 83420096A EP 83420096 A EP83420096 A EP 83420096A EP 0098230 A1 EP0098230 A1 EP 0098230A1
Authority
EP
European Patent Office
Prior art keywords
fibers
wire
core
guide surface
drum
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
EP83420096A
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English (en)
French (fr)
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EP0098230B1 (de
Inventor
Jean Venot
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.)
Devtex
Original Assignee
Asa SA
Devtex
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
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Application filed by Asa SA, Devtex filed Critical Asa SA
Publication of EP0098230A1 publication Critical patent/EP0098230A1/de
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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
    • D02G3/36—Cored or coated yarns or threads
    • D02G3/367—Cored or coated yarns or threads using a drawing frame

Definitions

  • the present invention relates to an improvement in spinning techniques making it possible to produce yarns of fibers comprising an internal core, yarns which, in the following description, will be designated by the expression "core yarns”.
  • the maintenance of the fibers in parallelized form, flat on the movable guide surface can be achieved either by subjecting said surface to a suction or, preferably, by using a surface which has a surface state which maintains the fibers by simple contact, or even by combining these two possibilities.
  • the guide surface can be in the form of a cylindrical drum, a hyperboloid-shaped drum, an endless belt or any other equivalent member.
  • the surface will be perforated or porous and will appear either in the form of a drum or in the form of an endless belt.
  • the surface will preferably be covered with a material facilitating the adhesion of the fibers, for example of a material similar to velvet. It could possibly be envisaged to use a surface having the structure of a brush.
  • Figure 1 illustrates, side view, a working position of a machine allowing the implementation of the method according to the invention, that is to say allowing to realize, in a single step, real son core .
  • This installation comprises a storage area (1), for example a creel, where the coils (2) of wires (3) are arranged intended to constitute the core of the wire to be produced in accordance with the invention.
  • These wires (3) are brought via a deliverer (4), which could possibly be eliminated, to the area of treatment proper, designated by the general reference (5) where they will be covered and associated with staple fibers.
  • This treatment zone (5) comprises a deliverer (6), a false twist spindle (7) of known type, for example a friction spindle, with crossed belts.
  • a third call provider (8) is arranged downstream of the spindle (7) and the formed wire is returned at (9) by means of a conventional winding system which may or may not impart an additional twist to the formed wire.
  • the distribution of staple fibers around the core (3) is carried out by providing, upstream of the false twist spindle (7), that is to say in the area of ascent of the twist, a guide surface mobile (10) on which the fibers (11) are delivered tangentially and which tends to exert a tensile force on the free end of said fibers.
  • These fibers (11) come from a wick (12) which undergoes drawing for example by means of a conventional system with sleeves (13) or a large drawing of the selector type.
  • the guide surface (10) has a straight generator and has a surface state ensuring the maintenance of the fibers by simple contact.
  • the fibers (11) are kept parallelized, in the form of a ribbon on the surface (10).
  • the core (3) is brought tangentially to the surface (10) in a direction not only concurrent with the direction of supply of the fibers (11) but also in a secant and tangential manner to said flat wick (11).
  • the torsion communicated by the spindle (7) and which goes up on the guide surface has a direction such that, in combination with the direction of advance of said guide surface, the fibers are taken up by the core (3) passing under this core, that is to say that their free end is trapped between the core and said guide surface.
  • the guide surface (10) consists of an endless belt supported by two rollers (14-15).
  • the guide surface (10) is also constituted by an endless belt but this belt is directly driven by the last cylinder of the drawing train.
  • the guide surface is constituted by a rotary drum which is cylindrical in shape in FIG. 4 and in the form of a hyperboloid in FIG. 8.
  • guides (16) and (17) are provided on each side of the guide surface (10) so that the core wire (3) is presented tangentially to said surface and comes to cut the wick of fibers (11) over its entire width and at an angle in their direction of movement.
  • covering material of the guide surface (10) Different types of materials can be used for the covering material of the guide surface (10). It has been found that good results are obtained by using, as covering materials for the surface, a textile material having the structure of a pile pile. Such a material makes it possible to obtain good retention of the parallelized fibers (11) which, however, are easily detached from said surface during the passage of the core wire (3) and distributed around this element.
  • an additional pressure roller shown in dotted lines in FIGS. 2, 3 and 4, designated by the reference (20).
  • This pressure roller is disposed substantially in the area where the fibers come into contact with the movable surface and promotes the attachment of the fibers to said surface.
  • FIGS 5 and 7 illustrate alternative embodiments of the method according to the invention using as a guide surface a conveyor belt (10).
  • the transport surface (10) also consists of an endless belt, but is mounted directly around one of the engine cylinders of the last pair of the stretching train (11). Consequently, the support roller (14) of FIG. 2 can be omitted.
  • the fibers are brought below the belt (10) and their maintenance on this surface is ensured by a suction system (21) arranged between the two strands of the belt.
  • This belt must of course allow the passage of air and can be either perforated or porous.
  • Such a variant is particularly suitable for treating cotton fibers but of course, this is not limiting.
  • the conveyor belt (10) is arranged vertically, so that its straight strand is opposite the output cylinders of the drawing train.
  • the fibers are distributed on this rectilinear strand, their taking by the core (3) being carried out as previously by bringing this core tangentially to the surface, concurrently with the wick of fibers.
  • the fibers were maintained either by simple mutual contact of said fibers with the surface, or by the action of a suction phenomenon on this surface, it can be envisaged, as illustrated in FIG. 6, to use as a transport surface a surface making it possible to combine a phenomenon of aspiration and a latching of the fibers by simple mutual contact.
  • a transport surface a surface making it possible to combine a phenomenon of aspiration and a latching of the fibers by simple mutual contact.
  • a belt which has alternating zones (22) of velvet type similar to that which is the subject of FIG. 2 and perforated zones (23). It has been found that good results are obtained by having a length of perforated zone (23) less than the average length of the fibers intended to be treated.
  • a core thread is obtained having a final titer of 534 Dtex in which the wool fibers are perfectly distributed around the core (3) and which has a very great regularity.
  • Such a thread can be used as it is in weaving or hosiery.
  • Example 1 is repeated but the guide surface constituted by a drum is replaced by a guide surface constituted by a flat belt as illustrated in FIGS. 2 and 3. As for example 1, the belt is coated with a layer of short pile velvet.
  • a perforated belt is used between the strands of which a suction box (21) is arranged.
  • the wick (11) consists of a cotton wick of 30,000 Dtex stretched 200 times in the system (13).
  • a core yarn is obtained in which the cotton fibers perfectly surround the internal core, this yarn having a count of 250 Dtex.
  • the guide surfaces (10) may consist of elements other than drums or belts coated with velvet.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP83420096A 1982-06-29 1983-06-08 Verfahren und Vorrichtung zum Herstellen von Coregarn aus Fasern Expired EP0098230B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8211615A FR2529234A1 (fr) 1982-06-29 1982-06-29 Procede et dispositif pour la realisation de files de fibres comportant une ame
FR8211615 1982-06-29

Publications (2)

Publication Number Publication Date
EP0098230A1 true EP0098230A1 (de) 1984-01-11
EP0098230B1 EP0098230B1 (de) 1985-11-06

Family

ID=9275615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83420096A Expired EP0098230B1 (de) 1982-06-29 1983-06-08 Verfahren und Vorrichtung zum Herstellen von Coregarn aus Fasern

Country Status (5)

Country Link
US (1) US4481759A (de)
EP (1) EP0098230B1 (de)
JP (1) JPS599234A (de)
DE (1) DE3361168D1 (de)
FR (1) FR2529234A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004550A1 (en) * 1983-05-18 1984-11-22 Heberlein Hispano Sa Method and device for yarn winding
DE3521756A1 (de) * 1985-06-18 1987-01-08 Schubert & Salzer Maschinen Verfahren und vorrichtung zum offenend-friktionsspinnen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4562870A (en) * 1984-04-30 1986-01-07 Larry Calvin Dubbing twister device
AT382644B (de) * 1984-06-19 1987-03-25 Fehrer Ernst Vorrichtung zum herstellen eines garnes
AT380703B (de) * 1984-10-25 1986-06-25 Fehrer Ernst Vorrichtung zum eindrehen der kernlunte fuer ein garn
JPS62117830A (ja) * 1985-11-15 1987-05-29 Murata Mach Ltd 紡績糸の製造装置
US5555716A (en) * 1994-11-02 1996-09-17 Basf Corporation Yarn having microfiber sheath surrounding non-microfiber core
US7310932B2 (en) * 2005-02-11 2007-12-25 Invista North America S.A.R.L. Stretch woven fabrics

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2806991A1 (de) * 1976-03-27 1978-10-05 Barmag Barmer Maschf Verfahren zum offenend-spinnen
DE2848606A1 (de) * 1978-07-17 1980-01-31 Barmag Barmer Maschf Verfahren zur herstellung eines kernmantelgarns und spinnvorrichtung zur durchfuehrung des verfahrens

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR497481A (fr) * 1919-03-24 1919-12-06 D And W Fuse Company Machine et procédé pour le filage d'un fil composite
US2208897A (en) * 1938-02-04 1940-07-23 Owens Corning Fiberglass Corp Wire covering device
DD98119A1 (de) * 1971-11-30 1973-06-12
CA928596A (en) * 1972-07-06 1973-06-19 J. Bobkowicz Andrew Composite yarn forming method and apparatus
ATA169077A (de) * 1976-03-27 1990-09-15 Schlafhorst & Co W Verfahren zum spinnen von fasern zu einem faserverbund
JPS5953370B2 (ja) * 1976-12-02 1984-12-25 帝人株式会社 無撚紡績糸の製造法
AT345701B (de) * 1977-04-27 1978-10-10 Fehrer Ernst Vorrichtung zum spinnen textiler fasern
DE2803904C2 (de) * 1978-01-30 1986-07-03 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Offenend-Spinnverfahren und Spinnvorrichtung
DE2830669C2 (de) * 1978-07-12 1981-03-26 Peter 83236 Übersee Lippmann Verfahren und Vorrichtung zum Umspinnen eines Spinnträgers mit Fasermaterial
SU924191A1 (ru) * 1980-02-25 1982-04-30 Kostromsk Sp K B Tekstil Способ получения армированной нити i

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2806991A1 (de) * 1976-03-27 1978-10-05 Barmag Barmer Maschf Verfahren zum offenend-spinnen
DE2848606A1 (de) * 1978-07-17 1980-01-31 Barmag Barmer Maschf Verfahren zur herstellung eines kernmantelgarns und spinnvorrichtung zur durchfuehrung des verfahrens

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004550A1 (en) * 1983-05-18 1984-11-22 Heberlein Hispano Sa Method and device for yarn winding
EP0128863A1 (de) * 1983-05-18 1984-12-19 Heberlein Hispano S.A. Verfahren und Vorrichtung zum Herstellen eines Umwindegarnes
DE3521756A1 (de) * 1985-06-18 1987-01-08 Schubert & Salzer Maschinen Verfahren und vorrichtung zum offenend-friktionsspinnen

Also Published As

Publication number Publication date
JPS599234A (ja) 1984-01-18
EP0098230B1 (de) 1985-11-06
FR2529234A1 (fr) 1983-12-30
DE3361168D1 (en) 1985-12-12
FR2529234B1 (de) 1985-05-03
US4481759A (en) 1984-11-13

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