Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F26—DRYING
  • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
  • F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
  • F26B13/001—Drying and oxidising yarns, ribbons or the like
  • F26B13/002—Drying coated, e.g. enamelled, varnished, wires
• • 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
  • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
  • D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
• • 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
  • D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
  • D06B15/09—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by jets of gases
• • 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
  • D06B21/00—Successive treatments of textile materials by liquids, gases or vapours

Definitions

• the present invention relates to the field of continuous treatment of textile yarns, whether they are yarns made up of a plurality of continuous filaments or staple fibers of natural, synthetic or artificial origin.
• this action of wiping the wire with air is far from sufficient to avoid splashes of treatment bath, in particular dyes, at the outlet of the device used, before drying.
• threading the wire into the various impregnation and wringing members is not easy and requires the use of passettes, which are fine rods of wire. .
• Document FR.2.282.492 also discloses a continuous treatment method intended mainly for treating a fibrous ribbon using a false twist member in order to untwist this ribbon after it has received a injection of a liquid, which can be a colored liquid.
• a liquid which can be a colored liquid.
• the fibrous ribbon is surrounded by a liquid sheath which, in the preferred application, makes it possible to bond the fibers of the ribbon by adhesion.
• the object of the present invention is to make it possible to carry out the treatment of all kinds of threads, consisting of continuous fibers or filaments, avoiding uncontrolled splashes of treatment bath and ensuring easy threading of the thread when the process is started.
• the method of treating wires in continuous movement which, typically, comprises the following successive operations, taken in the direction of movement of the wire: a) a suction operation in which the wire is sucked in through an air suction nozzle, b) a spraying operation in which a treatment bath is sprayed onto the wire using at least one spraying nozzle, c) a discharge operation in which the air and the treatment bath, not carried by the wire, is evacuated, d) a false twist operation in which an air false twist member twists the wire e) and possibly a wire drying operation, the operation of spraying can be carried out either upstream or downstream of the suction operation.
• the bath contains a resin including pigments.
• the bath contains a resin including pigments.
• This device successively comprises, on the path of the wire, an air suction nozzle, at least one spray nozzle for a treatment bath, an air evacuation chamber and the excess treatment bath. and a false air torsion member.
• the drying means consists of two heating drums, with offset axes, on which drums the wire is wound and moves in the form of substantially contiguous turns.
• the present invention will be better understood on reading the description which will be given of a preferred embodiment of a continuous yarn dyeing installation, illustrated by the attached drawing in which:
• - Figure 1 is a simplified representation of the installation
• - Figure 2 is a sectional view of the device comprising the suction nozzle, the spray nozzle, the discharge chamber and the false twist member.
• the wire 1 undergoes, on its moving path continuous, a succession of operations, namely a suction operation using an air suction nozzle 3, an operation for spraying a treatment bath using a spray part 4 comprising at least one nozzle, an operation for removing air and excess treatment bath thanks to an evacuation chamber 5, a false twist operation thanks to an air false twist member 6 and preferably a finishing operation in a finishing station 8 before be received at a receiving station 9.
• a succession of operations namely a suction operation using an air suction nozzle 3, an operation for spraying a treatment bath using a spray part 4 comprising at least one nozzle, an operation for removing air and excess treatment bath thanks to an evacuation chamber 5, a false twist operation thanks to an air false twist member 6 and preferably a finishing operation in a finishing station 8 before be received at a receiving station 9.
• the finishing station 8 is a drying station with two heating drums 1 0, 1 1 with offset axes, allowing the formation of substantially contiguous turns continuously moving on the peripheral surface of the two drums 1 0, 1 1.
• the receiving station 9 is a single winder.
• upstream of the suction nozzle 3 and downstream of the false-twist member 6 can also be disposed respectively 2.7 deliverers each consisting of a pair of food cylinders. Thanks to these deliverers it is possible to vary the instantaneous speeds of movement of the wire; if the speed at the first deliverer 2 is lower than that of the second deliverer 7, the wire 1 is tensioned or even stretched; in the opposite case, there is an overfeeding of the wire 1 in the assembly 1 2 comprising the suction, the spraying, the evacuation and the false twist. Similarly, it is possible to vary the instantaneous speed of the wire between the second deliverer 7 and the receiving means 9.
• the suction nozzle 3 consists of a hollow part 1 3 comprising a central channel 14 for the passage of the wire 1, an annular chamber 1 5 supplied with compressed air by a pipe 1 6, and four pipes 1 7 connecting the room annular 1 5 to the central channel 14. These four conduits 1 7 are also distributed around the channel 14, radially to the axis DD of the said channel and inclined in the direction of movement of the wire according to the arrow F.
• the compressed air coming from the pipe 1 6 fills the annular chamber 1 5 and is projected by the conduits 1 7 towards the inside of the central channel 14, obliquely, pushing the wire 1 in the direction of the arrow F.
• the structure of the spray part 4 is similar to that which has just been described for the spray nozzle 3, with the hollow part 1 8, the central channel 1 9, the annular chamber 20, the supply line 21 and the four conduits 22.
• the supply line 21 is supplied not with compressed air but by a pressure treatment bath which is distributed in the annular chamber 20 and is projected into the central channel 19 thanks to the conduit 22.
• This projection of a high pressure liquid through a conduit of small diameter corresponds to a spraying of fine droplets which penetrate to the core in the wire 1 passing through the channel 19.
• the discharge chamber 5 consists of a hollow part 23 comprising a central channel 24 for the passage of the wire 1 and laterally a discharge pipe 25 of large diameter opening out to a receptacle not shown, with filtering and possible recycling of the bath recovered.
• the false-torsion member 6 consists of a hollow part 26 with a central channel 27, an annular chamber 28 supplied by a compressed air supply line 29 and four conduits 30 connecting the annular chamber 28 and the central channel 27
• the central channel 27 is broken down, in the example illustrated in FIG. 2, into five successive portions.
• the first portion 27a the most upstream in the direction of movement of the wire according to arrow F, is a converging frustoconical portion.
• the other three following portions 27b, 27ç_ and 27d. are cylindrical portions of increasing diameter and the fifth portion 27e is a divergent frustoconical portion.
• the four conduits 30 are disposed between the annular chamber 28 and the third portion 27c of the central channel 27 so that the compressed air penetrates tangentially with respect to said channel, creating a vortex movement inside said third portion 27c.
• the second portion 27b has a small diameter which is slightly greater than the diameter of the wire 1 to be treated. Under these conditions, the air which escapes from the conduits 30 is preferentially driven downstream, that is to say towards the portions 27c to 27e, which gives the false torsion member 6 a component of suction, which further facilitates threading the wire at the start of the installation.
• the converging frustoconical shape of the first portion 27a is also designed to facilitate this threading.
• the small diameter of the second portion 27b also makes it possible to prevent the excess treatment bath coming from the central channel 4 from the evacuation chamber 5 from entering the false torsion member 6.
• the embodiment which has just been described with regard to the assembly 1 2 is not limitative of the invention.
• the number of conduits, their angle of inclination with respect to the axis DD, their section, the supply pressure for each conduit depend on the quantity of treatment bath to be deposited on the wire, on the viscosity of the treatment bath , the speed of movement of the wire ...
• the device which has just been described has an important advantage, compared to this second version, namely that the air sent into the central channel 14 of the suction nozzle 3 in the direction of the arrow F prevents the rise, against the flow of movement of the wire 1, of the treatment bath droplets projected in the central channel 1 9 of the spray part 4. In operation there is therefore no flow of treatment bath escaping through the inlet 14a of the channel 14 of the suction nozzle 3.
• the section of the evacuation pipe 25 is greater than or at least equal to that of the inlet orifice 14a of the suction nozzle 3.
• the section of the central channel 19 of the spraying part 4 must be equal to or greater than that of the central channel 14 of the suction nozzle 3.
• the three central channels 14, 1 9,24 had the same diameter of 5mm and the discharge pipe 25 has a diameter of 8.5mm.
• the ducts 1 7, 22 had a diameter of the order of 0.5 to 0.8 mm.
• the pressure of the compressed air supplying the suction nozzle 3 and the false-torsion member 6 was respectively 3 and 6.1 O 5 Pa (3 and 6 bars).
• the supply pressure of the treatment bath in the line 21 of the spraying part 4 was 4.1 O 5 Pa (4 bars).
• the passage of the wire 1 in the false twist member 6 also has the effect of achieving a mechanical spin of the wire, which explains the low take-up rate which it is possible to obtain thanks to the whole 1 2.
• the wire 1 leaving the assembly 12 is dried on the two heating drums 10, 1 1 and then wound.
• the two deliverers 2 and 7 make it possible to adjust the instantaneous speeds of the wire 1 during its movement upstream and downstream of the assembly 12 then between the assembly 12 and the winder 9. It is therefore possible, thanks to this adjustment instantaneous speeds, to achieve a supercharging of the wire 1 during its passage through the assembly 12.
• the assembly constituted by the suction nozzle, the spraying part, the evacuation chamber and the member of false twist is formed in a one-piece form.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Treatment Of Fiber Materials (AREA)
• Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
• Coloring (AREA)
• Absorbent Articles And Supports Therefor (AREA)
• Spray Control Apparatus (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=9496695

Family Applications (1)

Country Status (11)

Cited By (1)

Families Citing this family (12)

Family Cites Families (6)

• 1996
  • 1996-10-09 FR FR9612581A patent/FR2754279B1/fr not_active Expired - Fee Related
• 1997
  • 1997-10-08 WO PCT/FR1997/001796 patent/WO1998015680A1/fr not_active Ceased
  • 1997-10-08 AU AU46275/97A patent/AU4627597A/en not_active Abandoned
  • 1997-10-08 PT PT97944944T patent/PT934436E/pt unknown
  • 1997-10-08 ES ES97944944T patent/ES2156637T3/es not_active Expired - Lifetime
  • 1997-10-08 AT AT97944944T patent/ATE199029T1/de not_active IP Right Cessation
  • 1997-10-08 US US09/284,096 patent/US6513315B1/en not_active Expired - Fee Related
  • 1997-10-08 EP EP97944944A patent/EP0934436B1/de not_active Expired - Lifetime
  • 1997-10-08 JP JP10517266A patent/JP2001501683A/ja active Pending
  • 1997-10-08 DE DE69704028T patent/DE69704028T2/de not_active Expired - Fee Related
• 2001
  • 2001-04-27 GR GR20010400650T patent/GR3035802T3/el not_active IP Right Cessation

Non-Patent Citations (1)

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