Classifications

• • 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
  • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
  • D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
  • D06B5/22—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through fabrics

Definitions

• the present invention relates to a beam dyeing autoclave, generally comprising a tank of generally cylindrical shape and horizontal axis, capable of containing a dye bath, the tank being provided at one end with a door provided for the introduction of a roll of fabric to be dyed, wound around a beam taking place inside said tank, with which is associated a circulation and bath expansion device with heat exchanger and circulation pump.
• the invention relates to a dyeing autoclave in which the beam is mounted to rotate, and driven by a rotation device, along the horizontal axis of the tank, the roll of fabric to be dyed being only partially immersed in the dye bath, the level of which reaches an intermediate height, preferably variable, inside the tank.
• the beam rotation principle associated with an internal bath expansion system, allowing a dyeing operation on a semi-submerged fabric roll, is advantageous in particular by the bath economy and the improvement in yield that it provides the "bath ratio" (weight of material to be dyed / volume of bath necessary for treatment) being considerably reduced in comparison with conventional treatment autoclaves without rotation of beam.
• the beam is driven in rotation only by a radial arm, fixed to the free end of a central shaft driven in rotation from a motor and by the 'Intermediate of a reducer, the radial drive arm cooperating in the manner of a pusher with a cleat fixed inside the beam.
• a beam driving device does not allow a regular rotation of the beam.
• the phenomenon of unbalance due to the partial filling of the tank in dye bath results: - firstly, by a rotation of a half-turn of the beam, ensured by the thrust of the radial arm of drive on the beam cleat;
• EP-A-0104429 also discloses an autoclave for dyeing textile materials, comprising a cylindrical tank of horizontal axis, in which a beam is rotatably mounted, driven in rotation by a mechanism comprising a toothed crown secured to one end of the beam, and meshing with a pinion driven by a gear motor.
• the beam has here a special and expensive structure, all the more so since in practice each user employs a large number of beams.
• Such an autoclave is therefore not usable with simple beams and of a common type, and does not constitute a truly industrially usable solution.
• the present invention aims to eliminate these drawbacks by providing a dyeing autoclave which, thanks to the particular design of its beam rotation device, is capable of ensuring industrial production, by allowing the treatment of loads of up to 2,000 kg. , or even more, while guaranteeing perfect uniformity of the dye, and remaining compatible with current type beams.
• the rotation device comprises a toothed drive ring, rotatably mounted inside the tank around the horizontal axis thereof, towards the end of said tank remote from its door, the ring gear being in permanent engagement with a driving pinion and being linked in rotation to an annular drive flange on which is tightened, by fitting conical, one end of the beam.
• the beam is secured to a toothed drive ring, independent of the beam and moved by a motor pinion.
• the rotation of the beam is therefore regular, and obtained in a practically direct manner, without passing through the intermediary of a shaft undergoing torsions.
• the annular flange allows the adaptation and the drive of a current type beam.
• the drive ring gear is extended, on a side opposite to the annular drive flange, by a rotating sleeve mounted inside a fixed sleeve which passes through the bottom of the tank, the rotating sleeve being traversed by the dye bath coming from the circulation device.
• a central shaft one end of which is threaded and carries a beam tightening plate, as well as a beam tightening nut, the plate being provided for clamping, by conical fitting, of the end of the beam furthest from the rotation device.
• the actuation of the clamping nut allows, through the clamping plate, to strongly apply the first end of the beam on the conical interlocking surface of the annular drive flange.
• Figure 1 is an overall view, in longitudinal section, of a dye autoclave according to the present invention
• Figure 2 is a cross-sectional view of this autoclave, along line II-II of Figure 1;
• Figure 3 is another view in cross section, along III-III of Figure 1.
• Figure 1 is a block diagram of a dye autoclave on beam, which has a tank 1 generally cylindrical, horizontal axis 2, closed at one end by a fixed bottom 3, while its other end, open, is provided with a pivoting door 4.
• the autoclave is intended for dyeing a roll of fabric 5, wound around a beam 6 which is introduced inside the tank 1 after opening the door 4.
• the beam 6 is arranged along the horizontal axis 2 of the tank 1 , and is rotated about this axis 2, along arrow F.
• the treatment is carried out by means of a dye bath 7, partially filling the tank 1, in which the roll of fabric 5 is partially submerged - see figure 2.
• the autoclave has a beam rotation device 8, and a bath circulation and expansion device 9, which will be described in detail below.
• the beam rotation device 8 comprises a geared motor 10, placed outside of the tank 1, the output shaft 11 of which crosses the bottom 3 of the tank 1 by a sealed bearing 12.
• the shaft of outlet 11 of the gear motor 10 carries, at its end situated inside the tank 1, a motor pinion 13.
• the drive pinion 13 is in permanent engagement with a toothed ring gear 14, disposed inside the tank 1 towards its end remote from the door 4, that is to say towards the bottom 3, and mounted rotatably around the axis 2 of this tank 1.
• the ring gear 14 is extended, on the opposite side to the inside of the tank 1, by a rotating sleeve 15, mounted inside a fixed sleeve 16 which passes through the bottom 3 of the tank 1, to which it is fixed by an annular flange 17.
• the rotating sleeve 15 ends, at its end remote from the ring gear 14, by an annular shoulder 18 of axial retention, mounted rotating in a bearing 19 integral of the corresponding end of the sleeve 16.
• a central shaft 22 is also disposed along the horizontal axis 2 of the tank 1 .
• the central shaft 22 is threaded and carries a beam clamping plate 23, as well as a beam clamping nut 24 provided with handles 25.
• the beam clamping plate 23 has, at its periphery, a frustoconical interlocking surface 26.
• L beam 6 has a perforated cylindrical wall 27, and two end rings 28 and 29.
• the first end ring 28 has a frustoconical interlocking surface, complementary to the frustoconical interlocking surface 21 of the drive flange 20.
• the second end ring 29 of the beam 6 has a frustoconical interlocking surface, complementary to the frustoconical interlocking surface 26 of the beam clamping plate 23.
• the tank 1 comprises, in its lower part, two longitudinal rails 30 capable of receiving a beam carrier carriage 31, symbolized by its rolling rollers.
• the carriage 31 is provided, at its front and rear ends, with beam support rollers 32, on which the beam 6 rests by its respective ends, while being able to rotate around the horizontal axis 2.
• the bath circulation and expansion device 9 successively comprises a bath outlet duct 33 which starts from the lower part of the tank 1, a heat exchanger 34, a bath circulation pump 35 and a supply duct bath 36, which is connected to the bearing 19 secured to the fixed sleeve 16.
• the dye bath is thus introduced inside the tank 1 by traversing the rotating sleeve 15 extending the toothed drive ring 14, then crossing the annular drive flange 20.
• a bypass duct 37 starting from the bath supply duct 36, penetrates into the upper part of the tank 1, where it forms a spraying boom 38.
• the dye bath 7 reaches a level 40 which is variable, between a minimum bath level (as shown in FIG. 2) and a maximum bath level, substantially reaching the axis 2 , the roll of fabric 5 to be dyed being more or less immersed in the dye bath 7.
• the beam 6 is maintained by tightening the nut 24, which blocks the interlocking surfaces of the end rings 28 and 29 of the beam 6 respectively on the complementary interlocking surfaces 21 and 26, belonging to the drive flange 20 and to the clamping plate 23.
• the gear motor 10 is started, the drive pinion 13 rotates the toothed ring 14 and the drive flange 20, and the beam 6 is rotated about the axis 2 of the tank 1, by its first end ring 28 locked on the flange 20.
• the dye bath 7 reaches the center of the tank 2 through the rotating sleeve 15, all around the central shaft 22, and it passes through the perforations of the cylindrical wall 27 of the beam 6, then impregnates the roll of fabric 5 driven in rotation, from which it leaves by the periphery as indicated by the arrows F Figures 1 and 2.
• the opening of the door 4 of the tank 1 allows the introduction of the beam 6, placed on the beam carriage 31, and the extraction of this beam 6 at the end of treatment of the fabric roll 5.
• the structure of the autoclave, in particular of its beam rotation device 8, allows the dyeing of large and heavy rolls of fabric 5, in particular for articles with low porosity, the modulation of the bath level 40 in the tank 1 being carried out depending on the nature of the dye, and its shade.
• the autoclave which is the subject of the present invention can thus treat loads of up to 1,500 to 2,000 kg, or even more at once, this does not exclude the treatment of reduced loads in the same autoclave.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Textile Engineering (AREA)
• Treatment Of Fiber Materials (AREA)
• Coloring (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=9490749

Family Applications (1)

Country Status (4)

Families Citing this family (5)

Family Cites Families (4)

• 1996
  • 1996-03-26 FR FR9604022A patent/FR2746819B1/fr not_active Expired - Fee Related
• 1997
  • 1997-03-20 EP EP97915527A patent/EP0889985A1/de not_active Withdrawn
  • 1997-03-20 WO PCT/FR1997/000495 patent/WO1997036036A1/fr not_active Application Discontinuation
  • 1997-03-20 AU AU22970/97A patent/AU2297097A/en not_active Abandoned

Non-Patent Citations (1)

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