EP0418649A1 - Procédé et installation de traitement au mouillé de matières textiles - Google Patents

Procédé et installation de traitement au mouillé de matières textiles Download PDF

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Publication number
EP0418649A1
EP0418649A1 EP90117055A EP90117055A EP0418649A1 EP 0418649 A1 EP0418649 A1 EP 0418649A1 EP 90117055 A EP90117055 A EP 90117055A EP 90117055 A EP90117055 A EP 90117055A EP 0418649 A1 EP0418649 A1 EP 0418649A1
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EP
European Patent Office
Prior art keywords
textile
boiler
textile material
liquor
aerosol
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
EP90117055A
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German (de)
English (en)
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EP0418649B1 (fr
Inventor
Wilhelm Christ
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.)
T H E N Maschinen- und Apparatebau GmbH
Then Maschinen und Apparatebau GmbH
Original Assignee
T H E N Maschinen- und Apparatebau GmbH
Then Maschinen und Apparatebau GmbH
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Publication of EP0418649A1 publication Critical patent/EP0418649A1/fr
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    • 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
    • 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
    • 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
    • D06B5/16—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through yarns, threads or filaments
    • 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 invention is based on a method for the wet finishing of textile goods in accordance with the features of the preamble of claim 1. Furthermore, the invention relates to a device for carrying out the method according to the preamble of claim 16.
  • the boiler can also be connected to a vacuum source and allows the treatment liquor to be fed in via a further line.
  • the wet finishing takes place in such a way that all the ventilation valves of the boiler are first closed and the boiler is then connected to the vacuum source by opening a corresponding valve. At the same time, a line is opened for the treatment liquor so that the resulting negative pressure draws the treatment liquor into the boiler and consequently into the textile material.
  • the treatment liquor flows in on one side of the textile material, which is connected to the suction side of the gas circulation pump in the later course of the treatment process.
  • the vacuum source is switched off and instead the boiler is vented to the atmosphere.
  • the resulting pressure surge should distribute the fleet evenly in the textile goods.
  • a system which in turn has a pressure-tight lockable boiler in which the textile material is arranged.
  • the interior of the boiler is connected to the suction side of a gas circulation pump via a suction line.
  • this circulation pump is connected via a line to a heating device, from which a further line leads to the boiler, specifically into the interior of the textile material.
  • further lines which are connected to a dye tank, from which the paint to be applied is injected into the connecting line of the heating device and the interior of the textile material.
  • the gas circulation pump is started without further preparatory work, which then presses air through the textile material.
  • the dye to be applied is evaporated behind the heating device and transported from the circulating air to the textile material.
  • this method has the advantage of low dye consumption, this method in particular shows an uneven dyeing of the textile material, which is due to the fact that certain areas in the textile material present as a package receive less dye than other areas.
  • the object of the invention is to create a process for the wet finishing of textile goods which allows to supply the textile material evenly with the finishing agent, even if the textile material is in a thick, multilayered layer and the finishing is done exclusively by using an aerosol.
  • the invention is also based on the object of providing a device which is suitable for carrying out the method.
  • the extensive removal of the air from the interstices in the textile goods prevents the aerosol from trapping air during the subsequent flow of the textile goods, which prevents the finishing agent from penetrating into these areas. Because of the low viscosity of the aerosol and the high viscosity or adhesion of the liquid surrounding the air inclusion, it is also practically impossible to remove the air inclusion from the textile material. At the same time, the inclusion of air increases the flow resistance in this area of the textile material, which forces the aerosol to flow into those areas in which the flow resistance is lower.
  • the process according to the invention requires very little liquor.
  • the amount of the liquor corresponds approximately to the total volume of the voids in the textile goods.
  • the liquor ratio, expressed in liters of liquor per kg of textile, is therefore very favorable in the process according to the invention.
  • the energy expenditure for heating up to the fixing temperature is correspondingly low and the values for the waste water are correspondingly low.
  • the textile material Because only an aerosol flows through the textile material and not from the liquor in liquid form, the textile material is less mechanically stressed. It retains its quality properties better than when wet finishing with a liquid liquor.
  • the uniformity can be improved while simultaneously shortening the wet finishing process if the throughflow takes place alternately from both sides of the textile material.
  • a further equalization is achieved if, at least one after the other in time, the entire outer peripheral surface or the entire inner peripheral surface of the textile material formed into a textile body aerolsol is applied directly.
  • the nozzles can be moved relative to the textile material.
  • the pressing together of the textile material which becomes moist in the course of the finishing process due to the increasing specific weight, is largely avoided if, in the case of textile material that is present in the plug-on system, the spindles on which the textile material is located are aligned horizontally.
  • the textile material can preferably be set in motion about a horizontal axis in order to avoid one-sided loading and warping in the textile material.
  • the atomization device is located inside the boiler and thus in the immediate vicinity of the textile material.
  • the atomizing device is arranged partly inside the boiler in the material carrier and partly outside the material carrier.
  • a device 1 for wet finishing of textile goods in the slip-on or packing system is illustrated.
  • the textile goods are yarns, threads or combs in the form of a winding body, fabric or knitted fabric as a piece tree winding as well as muffs and the like.
  • the device contains a boiler 3 which can be closed in a pressure-tight manner by means of a cover 2 and in which a material carrier 4 for the textile material is arranged.
  • the material carrier 4 is hollow in a known manner and carries slip spindles 5 arranged equidistantly distributed along its circumference, which lie horizontally and on which a large number of winding bodies 6 are plugged in such that there are a plurality of columns lying parallel to one another.
  • the interior of all the winding bodies 6 is connected in terms of flow to the interior of the material carrier 4, the cavity formed in this way being closed at the end with the aid of head closures 7 which are attached to each plug-in spindle 5.
  • the entirety of all winding bodies 6 is referred to below as textile goods body 8.
  • a line 9 is connected in terms of flow to the material carrier 4, via which line the interior of the material carrier 4 is connected to a 4/2-way valve 11.
  • a further line 12 leads from the valve 11 to the boiler 3, into which it opens at 13.
  • a line 14 is connected to the other two connections of the directional control valve 11 and contains, in relation to the direction of flow of the gas circulating therein, a steam supply device 15, a heat exchanger 16 and a liquid separator 17 and a pump or a compressor 18, which is controlled by a speed-controlled one Motor 19 is drivable.
  • the steam supply device 15 is connected to a steam network 22 via an adjustable valve 21 and allows it to enter the gas circuit optionally feed steam.
  • the heat exchanger 16 located downstream of the steam supply device 15 can be used for both heating and cooling, for which purpose it can be connected to either the steam network 22 or a cold water supply 25 by means of two selectively adjustable valves 23 and around the heat exchanger coil present in the heat exchanger 16 to operate with the appropriate medium.
  • the gas contained in the device is either supplied from the compressor 18, the pressure side of which is connected to the valve 11, to the inside of the material carrier 4, in order to act as a so-called internal-external flow from the side of the plug-on spindles 5 to the textile body 8 to flow through, before the gas flows back via the interior of the boiler 3 and the line 12 to the valve 11 and thus to the suction side of the compressor 18.
  • the gas flows from the pressure side of the compressor 18 via the line 12 into the interior of the boiler 3 in order to get into the interior of the material carrier 4 as a so-called external / internal flow through the textile body 8. From there, the gas flows via line 9 back to the valve 11 and then to the suction side of the compressor 18.
  • the gas coming from the textile body 8 passes successively through the steam supply device 15, the heat exchanger 16 and the liquid separator 17.
  • shut-off valve 26 in order to shut off the flow connection between the material carrier 4 and the valve 11.
  • a shut-off valve 28 is connected to this section of line 9 between shut-off valve 26 and material carrier 4, which connects line 9 to a vacuum control valve 29, which leads to a water separator 31 and further to a vacuum source 32.
  • the vacuum source 32 is, for example, a water ring pump with a storage tank, a jet pump or any other suitable pump that allows the air to be sucked out of the device 1.
  • a shut-off valve 33 is provided which, via a line 34, on the one hand directly to the interior of the boiler 3 and on the other hand to the connecting line between the control valve 29 and the shut-off valve 28 communicates.
  • the shut-off valve 28 is closed, the air can be drawn off as an internal / external flow via the opened valve 33.
  • the Evacuating via the valve 33 in the textile body 8 produces almost no air flow, while, conversely, when evacuating via the valve 28, a relatively large amount of air is sucked through the textile body 8.
  • one or the other variant may be appropriate depending on the material properties and moisture content of the textile body 8, one or the other variant may be appropriate.
  • shut-off valve 35 is connected to the boiler 3, which leads to the outside and which allows the boiler 3 to be brought back to atmospheric pressure, without excessive flow through the textile body 8, because the inflowing air directly into the interior of the boiler 3 arrives.
  • the device 1 as far as it has been described so far, essentially resembles so-called pressure dryers, and its practical design expediently also expands those components that are necessary in pressure dryers, such as compressed air sources and the associated valves.
  • the difference to pressure dryers is on the one hand in the possibility of evacuation and on the other hand in the devices described below, in order to to introduce the liquor required for wet finishing into the gas cycle.
  • the liquor present as an aerosol flows through the textile body 8 as an internal / external flow.
  • the atomizing nozzles 38 are connected to a line 39 which runs within the material carrier 4 and to a certain extent within the line 9 before it is led out in a sealed manner.
  • the line 39 connects the nozzles to a heat exchanger 41 which, like the heat exchanger 16, can be used either for cooling or for heating. For this purpose, it can be connected either to the steam source 22 or the cold water device 25 via two adjustment valves that can be set from zero.
  • a line 44 leads from the heat exchanger 41 to the pressure side of a liquid pump 45, which allows a liquid to be fed into the line 44 under high pressure and thus to be fed to the atomizing nozzles 38.
  • the suction side of the liquid pump 35 is initially connected via a line 46 and an optionally lockable valve 47 to a reservoir 48 for the liquor 49 therein. When the valve 47 is open, the pump 45 can suck the liquor 49 out of the reservoir 48.
  • the aerosol produced in this way reaches the textile body 8 through the gas circulated by the compressor 18.
  • a portion of the liquid transported in this way will remain in the pores of the textile body 8, where the mass transfer from the liquor, which is customary in the exhaust process, then occurs the Textile goods carried out.
  • Another part of the fleet will be transported through the textile body 8 with the circulating gas stream and will emerge again on the outflow side of the textile body 8. In the case of the internal / external flow, this portion of the liquor will partly precipitate on the inside of the boiler 3 and collect at the lowest point. A further part will flow out with the circulating gas via line 12 and reach liquid separator 17 or the suction side of compressor 18.
  • a collecting line 51 is arranged below the boiler 3, which is connected to the boiler 3 via several short lines 52.
  • the drain line 51 is drained via a line 54 and a shut-off valve 55 to the suction side of the liquid pump 45.
  • the drainage is controlled by a level controller 53.
  • the liquor obtained in the liquid separator 17 is also returned to the line 54 via a line 56 and a shut-off valve 57.
  • the fleet is drained after the wet finishing process has ended via a shut-off drain valve 58 which is connected to line 54.
  • an additional container 59 which is connected to the suction side of a metering pump 62 via a shut-off valve 61.
  • the metering pump 62 feeds the liquid from the additional container 59 into the suction side of the liquid pump 45 on its pressure side via a shut-off valve 63.
  • the circuit for the fleet also contains a number of pressure and temperature sensors for regulating and controlling the process. These additional sensors are also not shown for the sake of clarity.
  • the amount of the required liquor essentially results from the space or pore volume of the entire textile body plus the amount that circulates freely in the rest of the gas stream or is deposited on the pipe and container walls. This amount is considerably less than the amount required in the so-called short liquor technique, in which the liquor is pressed through the textile body 8 in liquid form.
  • a cotton cheese with a dry weight of 1.2 kg has a winding density of 0.38 kg per liter of winding volume, there is a winding body volume of 3.16 l.
  • the volume fraction of the cotton in this example is 0.8 l, so that the total space or pore volume amounts to 2.36 l.
  • the maximum liquor load is therefore 2.36 l per bobbin, corresponding to a liquor ratio of 1: 1.97, ie a bath volume of 1.97 l comes with 1% textile material with 100% liquor absorption.
  • the liquor ratio is still somewhat lower, because part of the space volume in the textile body is taken up by the gas flowing through.
  • a rapid loading process of the textile body 8 is necessary for a uniform dye distribution or for dye fiber systems in which there is already a substantivity to the dye in this phase of the bath distribution. This process is equivalent to 100% wetting with the fleet.
  • the proportion of air in the entire device is reduced either by evacuation or by flushing with superheated steam before the liquor is supplied in aerosol form. Which of the two process steps is used to reduce the proportion of air depends on the required fixing temperature, as is evident from the exemplary embodiments below.
  • Favorable results are achieved if the partial pressure of the air does not exceed 200 hPa.
  • the textile material does not have the correct temperature and humidity before the wet finishing begins, it can be conditioned in the device 1 in a known manner.
  • a necessary heating with minimal condensate humidification can be achieved, for example, when the compressor 18 is used to move heated air in the heat exchanger 16 through the textile body, which is then returned to the suction side of the compressor 18.
  • the textile material can also be heated by superheated steam, which likewise does not release moisture to the textile material. The parameters of the steam must be selected so that the steam is still overheated even after flowing through the textile body 8.
  • the device 1 described is operated as follows: When the lid 2 is open, the textile material fastened on the spindles 5 is introduced into the boiler 3. The cover 2 is then closed and the compressor 18, which is used to circulate the gas, is started. In this operating state, with the exception of the valve 26, all other valves are initially closed. Depending on the position of the directional control valve 11, the gas pumped by the compressor 18 first flows through the line 9 or the line 12 in order to then flow through the textile body 8 as an inside / outside or outside / inside flow. The outflowing gas comes via the other line 12 or 9 first to the steam supply device 15, then to the heat exchanger 16, then to the liquid separator 17 and again back to the compressor 18, which pumps the gas back into the textile body 8. The liquid pump 45 is initially still switched off in this operating state.
  • the circulated air can be adjusted with respect to moisture and temperature so that the textile body 8 is brought into the desired thermodynamic state.
  • the gas located in the device 1 is released by opening the valve 35 several times and steam is supplied at the same time by opening the control valve 21.
  • the device 1 is flushed with water vapor in this way, the proportion of air decreasing with each flushing process.
  • the air pressure is first reduced to below 200 hPa or, in the case of conditioning with steam, the liquid pump 45 is immediately started.
  • the valve 47 When the valve 47 is open, it sucks the prepared liquor 49 from the reservoir 48 and feeds it to the atomizing nozzles 38 under high pressure.
  • the liquor emerges in the form of fine or very fine droplets and, together with the gas circulated by the compressor 18, forms an aerosol which flows through the textile body 8 as an internal / external flow.
  • the liquor flowing through line 44 can be regulated in the heat exchanger 41 to the required temperature by either opening the control valve 42 or the control valve 43, depending on whether cooling or heating of the liquor is required.
  • the valve 47 is closed.
  • the valve 55 is now opened so that the liquid pump 45 can again suck in the liquor accumulating in liquid form in the collecting line 51 and spray it through the atomizing nozzles 38.
  • the liquor obtained in the liquid separator 17 can also be supplied to the suction side of the liquid pump 45 by opening the valve 57.
  • two circuits are created, namely a gas / aerosol circuit that leads through the compressor 18 and a circuit in which the liquor changes the state from the liquid to the aerosol form and back.
  • the the latter circuit contains the liquid pump 45, which returns the liquor obtained in liquid form to the gas / aerosol circuit.
  • the control of the wet finishing process in the sense of keeping the process temperature constant can take place via the heat exchangers 16 and 41, i.e. by acting on the gas / aerosol circuit or on the "liquor cycle", only the temperature of the liquor in liquid form being influenced.
  • a horizontal staining apparatus of the embodiment shown in FIG. 1 six tube spindles with a diameter of 70 mm each are arranged on the material carrier 4.
  • the tube spindles are loaded with six polyester muffs with a unit weight of 2.5 kg on spring wire sleeves as pressed columns. With a winding diameter of 240 mm and a pressed column height of 955 mm, the density of the winding body produced in this way is 0.380 kg / l winding volume.
  • the polyester threads are textured and have a fineness dtex 167 f 32x1.
  • the textile body 8 is prepared for the wet finishing process.
  • the entire treatment fleet should be as short as possible
  • the textile body 8 is to be heated with dry air in a first treatment step, for example to a fiber temperature of 110 ° C.
  • the heating to the treatment temperature takes place with superheated steam, a substantial reduction in the air content present in the entire system and in the textile body 8 being achieved. This is done in the aforementioned manner by alternately opening the valves 21 and 35 until the desired state is reached, in which almost air-free water vapor circulates through the compressor 18 in the gas circuit. The time until this condition is reached, at a treatment temperature of 1300 ° C corresponding to the fixing temperature of the disperse dye, depending on the geometric dimensions of the winding body 6, the fineness of the threads or yarns, the yarn construction or the winding density is about 5 minutes.
  • a 2% red color is provided for the fleet according to the following recipe: 2% commercially available disperse dye 0.3% leveling agent based on a high molecular weight sulfo-containing polyester pH 4.5 with acetic acid and 1.5 g / l sodium acetate.
  • the batch is heated to 800 ° C. and filled with a quantity of approx. 150 l into the storage container 48.
  • the liquor in the container 48 is sucked in by the liquid pump 45 and fed to the atomizing nozzles 38, the liquor being heated in the heat exchanger 41 to the fixing temperature of 130.degree.
  • the liquor emerging in the form of very fine droplets from the atomizing nozzles 38 is transported into the winding body 8 and through it.
  • the largest part of the fleet in fine droplets is absorbed directly by the textile body.
  • the textile body 8 is completely loaded in a very short time with a small mechanical load from the liquor, because the spaces in the textile body 8 are free of air.
  • the valve 47 is closed and instead the valve 55 or the valve 57 is opened so that the liquor which has been separated from the gas / aerosol circuit is atomized again.
  • This process step continues until the desired bath exhaustion is reached.
  • the liquor is drained off, while the pressure on the textile body 8 is reduced and the fabric body 8 is cooled, the liquor loading being reduced.
  • the cleaning of the dyes not fixed in the textile body 8 and to achieve the required authenticity of the dyeing is carried out by supplying a cleaning liquor from the container 59 by opening the valve 61 and switching on the pump 62.
  • the temperature of this cleaning liquor is approximately 85 ° C. .
  • the cleaning liquor consists of the usual amounts of sodium hydroxide solution, hydrosulfite and auxiliaries.
  • the circulation with the cleaning liquor takes approximately 5 minutes, the temperature of the cleaning liquor being regulated via the two control valves 42 and 43 on the heat exchanger 41. After cleaning, the cleaning liquor is removed from the device 1 via the drain valve 58 with the liquid pump 45 switched off.
  • the valve 11 there is the possibility of further reducing the proportion of the treatment liquor held in the textile body 8 by switching the valve 11 to outside / inside flow and at the same time increasing the speed of the compressor 18.
  • the portion of liquor squeezed out is removed in the liquid separator 17 in front of the suction side of the compressor 18.
  • the textile body 8 is rinsed over the liquor system with a rinse water batch, e.g. with 170 l of rinsing water at 60 ° C.
  • the rinsing water is heated to 85 ° C. in a controlled manner in the heat exchanger 41 and atomized via the atomizing nozzles 38.
  • the valve 11 was previously switched over to the inside / outside flow.
  • the liquid pump 45 is stopped again and the rinsing water is discharged via the opened valve 58.
  • the elimination of the rinsing water is supported by switching to the outside / inside flow.
  • the process step with the flushing water aerosol is repeated two more times before flushing with soft water at approximately 20 ° C., also using an aerosol.
  • the time for such a repeat is about 3 minutes, so that the entire wet finishing takes about 45 minutes.
  • the total water Consumption for a liquor batch for dyeing, a batch for reductive cleaning and for a total of four rinsing baths is 1020 l, corresponding to a specific water consumption of 11.3 l / kg of textile.
  • FIG. 2 shows a further exemplary embodiment of the boiler 3, with which it is possible to pass the aerosol through the textile body 8 even in an outside / inside flow.
  • the components already described are provided with the same reference numerals and are not further explained in detail.
  • the boiler 3 according to FIG. 2 contains a casing tube 71 on each plug-in spindle 5, which surrounds the associated plug-in spindle 5 concentrically and is fastened to the material carrier 4 at one end.
  • each jacket tube 71 widens slightly as a funnel, as shown at 72, and a further atomizing nozzle 73 is provided in alignment with each jacket tube 71 in the boiler 3 and is fed from a ring line 74, which is the opposite funnel-shaped extension 72 of the casing tube 71, in which the boiler 3 is located.
  • each head closure 7 is covered by a conical hood 75, the tip of which faces the respective atomizing nozzle 73.
  • the mounting of the cover hoods 75 is not shown in detail.
  • the jacket tube 71 creates an annular gap around each column consisting of stacked coils 6, into which the nozzles 73 spray with a hollow cone jet.
  • shut-off valve 76 is provided in the feed line 39.
  • a line 77 leads to a shut-off valve 78 which supplies the ring line 74.
  • valve 76 is closed and the valve 78 is opened or vice versa, the valve 78 is closed and the valve 76 is opened.
  • the textile material corresponds in the substrate, in the packaging and in the arrangement on the material carrier 4 to Example 1, but instead of the boiler 3 from FIG. 1, that from FIG. 2 is used.
  • Trichromatic dispersion staining is performed using a combination of yellow, red and blue, which can be combined to achieve a shade of gray with a total concentration of 1.7%.
  • the fleet contains 1 g per l dispersant, 0.6% leveling aid based on a high molecular weight polyester containing sulfo groups, pH 4.5 with acetic acid and 1.5 g / l sodium acetate 0.1% yellow disperse dye, 0.4% red disperse dye, 1.2% blue disperse dye, 1g per liter of adjuvant for regulating the pH values (e.g. 55% acetic acid).
  • the textile body 8 is dry-heated as in Example 1.
  • a liquor ratio of approximately 1: 2 is selected for the treatment liquor. With a textile load of 90 kg, this corresponds to a treatment liquor volume of 180 l.
  • 150 l are filled with the specified substances, with the exception of the dye batch, into the storage container 48 and heated to 80.degree. Then, as before, the liquor is introduced into the circuit via the liquid pump 45, wherein it is heated to the fixing temperature in the heat exchanger 41.
  • the volume flow generated by the compressor 18 is adjusted to a range via the speed control so that the liquor loading reaches the predetermined value of 85%.
  • the spraying of the liquor ie the aerosol formation
  • the predispersed dye based in part on 20 l
  • the gas / aerosol circuit is switched over in synchronism with the injection flow in the manner described above, so that the process with an outside / inside and an inside / outside flow takes place continuously in succession.
  • the cycle time is 1 minute.
  • the winding phase is continued at 130 ° C for 5 minutes with the same switching cycle. This is followed by a 10-minute fixation time.
  • the coloring is then brought to an end, as in Example 1.
  • the total time required for the coloring is approx. 50 minutes.
  • the material carrier 4 is rotatably connected to line 9 or line 39 via seals 81.
  • it carries a drive shaft 82 running parallel to the plug-on spindles 5, which is led out in a sealed manner on the side of the cover 2 and is non-rotatably coupled to a drive motor 83 on the outside of the boiler.
  • the drive shaft 82 which passes coaxially through the boiler 3, the ring line 74, which is connected via a rotatable connector 75 to the line 77. It is hereby achieved that the nozzles 73 move synchronously with the plug-on spindles 5 and the alignment between the atomizing nozzles 73 and the respective casing tube 71 is maintained.
  • a 2.5% reactive dyeing is carried out on Nm 50/1 cotton yarn.
  • the volume of the spool is 3.06 l, which with a specific weight of cotton of 1.5 kg / l and 1.2 kg dry weight makes up a substrate volume of 0.8 l Clearance volume to 2.26 l
  • This theoretical volume is available for the loading of the liquor, whereby a 100% filling of the clearance volume can practically not be achieved because there is a dependency between the amount of gas flowing through and the liquor loading
  • a constant temperature of 50 ° C is selected for the coloring, using the following recipe: 2.5% reactive dye, 1 g / l wetting and dispersing aid, 20 g / l sodium chloride, 6 ml / l sodium hydroxide solution (32.5%) 32.5% (38 ° Bé).
  • the textile body 8 is prepared by evacuation.
  • the boiler 3 is evacuated via the vacuum control valve 29 with the shut-off valves 28 and 33 open, until a pressure of approximately 0.123 hpa is reached. This pressure corresponds to the saturation pressure of the treatment liquor at 50% C.
  • the valves 28 and 33 are closed, so that, as before, the self-contained circulation system is present.
  • the existing residual gas is now circulated through the textile body 8. If a temperature increase occurs that is accompanied by an increase in pressure, the pressure is readjusted via valve 29 when valve 28 or 33 is open. The evacuation and tempering of the textile body 8 takes about 5 minutes.
  • the fleet with a batch volume of mainly 150 l is injected into the gas circuit over a period of 5 minutes via the atomizing nozzles 38 at a rate of 2.5 l / min.
  • the compressor 18 remains switched on during this time and, as before, constantly circulates the diluted air in the circuit.
  • the flow rate is increased by increasing the speed of the compressor 18. Because of the now increased volume flow, the liquor loading is reduced to a value dependent on the flow pressure, for example by approx. 5%.
  • the resulting fleet in excess is fed again via the manifold 51 and the open valve 55 to the suction side of the liquid pump 55 and is thus also kept in circulation.
  • the liquor temperature is constantly regulated to 50 ° C.
  • the pressure on the suction side of the compressor 18 is also kept at a constant value, in the range of 0.123 hpa. There is thus a thermodynamic equilibrium state between the liquor and the gas via the saturation pressure, which in this case is air at low pressure and water vapor at 50 ° C.
  • This process step takes approximately five minutes, with the flow direction being switched ten times.
  • the salt is then metered from the additional container 59 with the aid of the metering pump 62.
  • the valve 63 When the valve 63 is open, the salt solution is added at a rate of 1.8 l / min, also with multiple switching of the flow direction in the textile body 8.
  • the lye is diluted to a volume of 3.5 l and the circulating liquor at a dosing rate of 350 ml / min. supplied via the pump 62. This corresponds to a dosing time of 10 minutes, with the flow direction in the textile body 8 being switched ten times.
  • the fixing phase is then continued for a period of 15 minutes at a constant temperature of 50 ° C.
  • the liquid pump 45 keeps the injection of the liquor separated from the aerosol going.
  • the dosing time may be reduced to e.g. 30 minutes to extend, so that the reaction time is extended in parallel.
  • the drain valve 58 and the ventilation valve 35 are opened in order to reduce the liquor load in the textile body 8 by means of an internal / external flow while the compressor 18 is running.
  • the first rinsing bath is then atomized from the storage container 48 via the nozzles 38 with the internal / external flow switched on.
  • acetic acid is acidified for acidification from the additional container 59 at the same time.
  • the rinsing water and the gas stream are heated to the treatment temperature of approximately 95 ° C. via the heat exchangers 16 and 41.
  • the reaction dye hydrolyzate to be absorbed by the rinsing water or the dyes not fixed by the fiber are rapidly removed.
  • the total treatment time in Example 3 is approximately 80 minutes with a total water consumption of approximately 25 l / kg of cotton.
  • FIG. 4 finally shows a boiler 3, which contains a material carrier 4, on which skewers are arranged on both sides, which point to opposite ends of the boiler 3. Otherwise, the arrangement corresponds to the embodiment according to FIG. 2, which is why the same reference numerals are provided in this respect.
  • the material carrier two ring lines 74 and two sets of atomizing nozzles 73 are provided.
  • the nozzles 38 and 73 are each fitted in the region of the front ends of each columnar textile body 8.
  • the nozzles are at rest with respect to the textile body 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
EP90117055A 1989-09-20 1990-09-05 Procédé et installation de traitement au mouillé de matières textiles Expired - Lifetime EP0418649B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931355A DE3931355A1 (de) 1989-09-20 1989-09-20 Verfahren und vorrichtung zum nassveredeln von textilgut
DE3931355 1989-09-20

Publications (2)

Publication Number Publication Date
EP0418649A1 true EP0418649A1 (fr) 1991-03-27
EP0418649B1 EP0418649B1 (fr) 1994-11-23

Family

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EP90117055A Expired - Lifetime EP0418649B1 (fr) 1989-09-20 1990-09-05 Procédé et installation de traitement au mouillé de matières textiles

Country Status (5)

Country Link
US (1) US5172443A (fr)
EP (1) EP0418649B1 (fr)
AT (1) ATE114341T1 (fr)
DE (2) DE3931355A1 (fr)
ES (1) ES2066067T3 (fr)

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DE4101496C2 (de) * 1991-01-19 1996-05-23 Then Masch & App Verfahren zum Naßveredeln von Textilgut
US5442939A (en) * 1993-04-19 1995-08-22 Gaston County Dyeing Machine Co. Carrier for supporting textile material in a wet treatment machine
US5410892A (en) * 1993-04-19 1995-05-02 Gaston County Dyeing Machine Company Horizontal wet treatment machines for textiles and textile material carriers therefor
US5590553A (en) * 1995-03-13 1997-01-07 Gaston County Dyeing Machine Company Carrier for supporting textile material packages in a wet treatment machine and package retaining cap for same
US6238441B1 (en) 1998-07-29 2001-05-29 Burlington Industries, Inc. Hydrophilic yarn dyed polyester process
US6676710B2 (en) 2000-10-18 2004-01-13 North Carolina State University Process for treating textile substrates
US9296126B2 (en) * 2003-05-17 2016-03-29 Microgreen Polymers, Inc. Deep drawn microcellularly foamed polymeric containers made via solid-state gas impregnation thermoforming
US7700016B2 (en) * 2005-08-02 2010-04-20 Solidscape, Inc. Method and apparatus for fabricating three dimensional models
EP2082075B1 (fr) * 2006-09-08 2017-05-17 Massachusetts Institute of Technology Technologie de pulvérisation couche par couche automatisée
US8877331B2 (en) * 2007-01-17 2014-11-04 MicroGREEN Polymers Multi-layered foamed polymeric objects having segmented and varying physical properties and related methods
DK2428358T3 (en) 2007-01-17 2015-06-15 Microgreen Polymers Inc A process for the production of a multilayer foamed polymeric article
US20100052201A1 (en) * 2008-03-03 2010-03-04 Microgreen Polymers, Inc. Foamed cellular panels and related methods
US8568125B2 (en) 2008-04-14 2013-10-29 Microgreen Polymers Inc. Roll fed flotation/impingement air ovens and related thermoforming systems for corrugation-free heating and expanding of gas impregnated thermoplastic webs
US8080194B2 (en) * 2008-06-13 2011-12-20 Microgreen Polymers, Inc. Methods and pressure vessels for solid-state microcellular processing of thermoplastic rolls or sheets
US8827197B2 (en) * 2008-11-04 2014-09-09 Microgreen Polymers Inc Apparatus and method for interleaving polymeric roll for gas impregnation and solid-state foam processing
US20110195165A1 (en) * 2010-02-08 2011-08-11 Cahill John E Material and sheet for packaging bacon and/or other meats, and methods for making and using the same
EP2560818B1 (fr) 2010-04-19 2015-08-26 Microgreen Polymers, Inc. Procédé pour joindre un matériau polymère thermoplastique
ES2683187T3 (es) 2012-02-29 2018-09-25 Dart Container Corporation Procedimiento para la infusión de un gas en un material termoplástico, y sistemas relacionados
JP6258972B2 (ja) 2013-01-14 2018-01-10 マイクログリーン ポリマーズ，インク． 多孔質材料と交互配置された熱可塑性材料のロールを巻解するシステム、及び、関連する方法
US10570542B2 (en) * 2015-09-11 2020-02-25 Teresa Catallo Apparatus and method for pre-shrinking a wet fabric prior to drying
US20210262135A1 (en) * 2020-02-24 2021-08-26 James Catallo Apparatus and method for pre-shrinking a wet fabric prior to drying
CN112647214B (zh) * 2020-12-30 2023-05-16 山东绿恒无纺布制品有限公司 一种用于无纺布节能环保的染色装置

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US4082502A (en) * 1973-06-22 1978-04-04 Hoechst Aktiengesellschaft Process for the dyeing of synthetic or natural fibers
FR2444741A1 (fr) * 1980-01-22 1980-07-18 Barriquand Perfectionnements apportes aux procedes et aux installations pour le traitement, et en particulier pour le traitement aqueux, de matieres textiles
EP0324941A2 (fr) * 1987-12-18 1989-07-26 T H E N Maschinen- und Apparatebau GmbH Procédé et installation de traitement de matières textiles

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US4082502A (en) * 1973-06-22 1978-04-04 Hoechst Aktiengesellschaft Process for the dyeing of synthetic or natural fibers
FR2444741A1 (fr) * 1980-01-22 1980-07-18 Barriquand Perfectionnements apportes aux procedes et aux installations pour le traitement, et en particulier pour le traitement aqueux, de matieres textiles
EP0324941A2 (fr) * 1987-12-18 1989-07-26 T H E N Maschinen- und Apparatebau GmbH Procédé et installation de traitement de matières textiles

Also Published As

Publication number Publication date
DE59007755D1 (de) 1995-01-05
DE3931355C2 (fr) 1991-09-12
EP0418649B1 (fr) 1994-11-23
ES2066067T3 (es) 1995-03-01
US5172443A (en) 1992-12-22
ATE114341T1 (de) 1994-12-15
DE3931355A1 (de) 1991-03-28

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