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EP3631072B1 - Vorrichtung zum entfernen von fluiden und waschvorrichtung mit dieser vorrichtung - Google Patents

Vorrichtung zum entfernen von fluiden und waschvorrichtung mit dieser vorrichtung Download PDF

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Publication number
EP3631072B1
EP3631072B1 EP17726942.0A EP17726942A EP3631072B1 EP 3631072 B1 EP3631072 B1 EP 3631072B1 EP 17726942 A EP17726942 A EP 17726942A EP 3631072 B1 EP3631072 B1 EP 3631072B1
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EP
European Patent Office
Prior art keywords
fabric
carbon dioxide
treatment chamber
washing
removal
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EP17726942.0A
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English (en)
French (fr)
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EP3631072A1 (de
Inventor
Bruno Scortegagna
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Lafer SpA
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Lafer SpA
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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
    • D06B9/00—Solvent-treatment of textile materials
    • 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
    • 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
    • D06B3/10—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fabrics
    • 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
    • D06B3/32—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of open-width materials backwards and forwards between beaming rollers during treatment; Jiggers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/08—Associated apparatus for handling and recovering the solvents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F43/00—Dry-cleaning apparatus or methods using volatile solvents
    • D06F43/06—Dry-cleaning apparatus or methods using volatile solvents wherein the articles to be cleaned are passed through a cleaning chamber or bath

Definitions

  • the present invention concerns a device to remove fluids, and an apparatus to wash fabrics comprising said device, usable in the industrial field of the manufacture of textile products.
  • said textile products can consist of textile fibers of the animal, plant, artificial, synthetic or mixed type.
  • the invention concerns a washing apparatus which uses carbon dioxide as the main washing fluid and a device to remove carbon dioxide.
  • washing processes usually use solvents, hydrocarbons and/or aqueous solutions containing particular soaping substances, detergents, wetting agents, surfactants or suchlike.
  • washing processes that use water with detergents to facilitate the removal of pollutants have been widely used until now, despite having a very negative environmental impact.
  • safety and environmental protection legislation is becoming increasingly restrictive, and therefore it is necessary to identify industrial washing processes that have minimal or no environmental impact.
  • Plants that treat fabrics discontinuously are comparable to large industrial washing machines that treat the fabric (or garments) in batches with different systems such as:
  • Such plants are generally equipped with recovery and recycling systems for the product used.
  • the productivity of these plants is limited by the load capacity.
  • the fabric In plants that treat the fabric continuously, the fabric is collected in a roll or on trolleys, it is then unwound and inserted into the treatment unit and processed continuously. At the end of the treatment, the fabric is re-wound in a roll or deposited in layers.
  • the plants that work continuously are essentially divided into water washing systems and dry cleaning systems.
  • the former use large amounts of water and soaps, together with dispersing and wetting agents and surfactants to increase the effectiveness of the process.
  • the processed fabric must then be dried, which implies considerable use of energy and consequent processing costs. Furthermore, the water used requires expensive purification plants.
  • CO 2 has a variety of properties that make it particularly suitable for scouring/washing fabrics.
  • Liquid carbon dioxide has a considerable solvent power, especially for apolar substances; these features allow to achieve and even improve the cleaning results obtained until now with the other known processes.
  • Carbon dioxide is a substance easily available on the market and at low cost since it is a residue of other production processes from which it can be suitably worked to be re-used.
  • CO 2 In its liquid state, CO 2 has very low surface tension and viscosity values, which make CO 2 a very good wetting agent, able to remove from deep in the fabric even very viscous liquids, such as complex composition mineral oils, fluid oils of a hydrocarbon nature or paraffins.
  • carbon dioxide is an excellent solvent in each of its physical states.
  • CO 2 proves to be the most appropriate solution for taking apolar auxiliary textiles into solution and removing them from the fabrics.
  • the CO 2 washing processes used in the state of the art are generally intended for installation in laundries, and provide to treat mainly garments by immersing them in a bath of liquid carbon dioxide inside a pressurized treatment chamber.
  • Known washing processes generally operate at pressures around 50 bar or higher.
  • the garments are inserted in an apparatus provided with a rack that rotates inside a drum, as in traditional washing machines.
  • US-B-6183521 provides to use supercritical CO 2 with pressures comprised between 90 and 350 bar and temperatures comprised between 40°C and 120°C. This process allows to improve the properties of strength and elongation of the fibers compared to traditional methods used for scouring.
  • EP-A-2098307 describes a distillation system for CO 2 dry-cleaning machines for garments, that is, it concerns small machines.
  • This plant provides to distil the CO 2 used in the process in two steps: a first step carried out in a first distillation unit, in which most of the CO 2 is separated from the extracted substances, and a second step, performed in a second distillation unit, with the purpose of increasing the total efficiency of separation.
  • JP-A-2010180385 JP'385
  • JP'385 describes a continuous, high-pressure treatment on generic films.
  • the treatment provides an unwinding and rewinding device of the treated product inside a chamber divided into two or more compartments with different operating conditions.
  • removing carbon dioxide from it can be simple, since it is sufficient to hang it out to dry at the end of the treatment, or to dry it using known systems.
  • the fabric is at a temperature comprised between 1°C and 6°C.
  • the temperature of the carbon dioxide is consequently lowered.
  • the very heat of the fabric combined with the heat input deriving from the cooling of the liquid CO 2 , make a part of the carbon dioxide that is trapped in the fabric evaporate, which is generally around 45% of the overall absorbed carbon dioxide.
  • the solidified and frozen carbon dioxide trapped in the fabric also increases its weight considerably.
  • the carbon dioxide remaining trapped in it can correspond to about 220 kg (which represents 55% of the impregnated carbon dioxide).
  • one purpose of the present invention is to obtain an apparatus and a related washing process which allow to almost completely remove the carbon dioxide from a fabric at the end of the washing treatment, before removing the fabric from the treatment chamber.
  • Another purpose of the present invention is to obtain a washing apparatus and a connected process which will allow to obtain, at the end of a washing treatment and at exit from the treatment chamber, a roll of fabric with a weight substantially corresponding to the weight which the roll of fabric had before the washing treatment, except for the substances and oils removed during the process.
  • Another purpose of the present invention is to obtain a washing apparatus and connected process which allow to recover and recirculate in a closed circuit substantially all the carbon dioxide used in the washing process, without any dispersion thereof into the environment.
  • Another purpose is to obtain the residual sludges containing oils, fats, etc., free from contaminants such as solvents, etc., so that said sludges can be disposed of as non-hazardous waste.
  • Another purpose is to provide a washing process that is of low environmental impact and is not polluting but at the same time is efficient and allows to obtain a good cleaning of the fabrics.
  • the Applicant has devised, tested and embodied the present invention to overcome the shortcomings of the state of the art and to obtain these and other purposes and advantages.
  • the present invention concerns a device for removing carbon dioxide from a fabric, usable inside a pressurized treatment chamber suitable for washing said fabric to remove from it the apolar substances.
  • the removal device comprises a mechanical removal member suitable to exert a mechanical action on a fabric to remove a part of the carbon dioxide trapped in the fibers, and a thermal removal member configured to heat the fabric and make the part of the residual carbon dioxide still trapped in the fibers evaporate.
  • the thermal removal member is disposed directly downstream of the mechanical removal member.
  • the present invention also concerns an apparatus for washing fabrics which comprises at least one treatment chamber to perform a washing treatment on a fabric using carbon dioxide, and a circuit to recirculate and recover carbon dioxide associated with the treatment chamber.
  • the recirculation and recovery circuit is provided with pressure regulation means configured to set and adjust the desired pressure inside the treatment chamber.
  • the treatment chamber comprises at least two winding/unwinding rollers configured respectively to wind and unwind a rolled fabric to make it pass from one to the other, possible return rollers that define a travel for the fabric to be treated, and a containing tank suitable to contain a bath of liquid carbon dioxide in which the fabric can be made to transit during the travel from one to the other of the winding/unwinding rollers.
  • the apparatus comprises at least one removal device according to the invention, configured to remove the liquid carbon dioxide substantially completely from the fabric at the end of the washing treatment.
  • the removal device is disposed inside the treatment chamber, in an intermediate position between the containing tank and the winding/unwinding roller on which the fabric is wound at the end of the treatment.
  • the present invention also concerns a process for washing fabrics which provides to insert a roll of fabric to be washed into a treatment chamber, drawing it in on at least two winding/unwinding rollers and possibly on return rollers that define a travel for the fabric to be treated; to create a desired pressure inside the treatment chamber, and perform at least one fabric washing treatment cycle by making it transit in a bath of liquid carbon dioxide during its travel from one to the other of the winding/unwinding rollers; to restore the atmospheric pressure in the treatment chamber, and finally to extract the roll of fabric from the treatment chamber.
  • the washing process provides to remove substantially completely the carbon dioxide trapped in the fibers of the fabric in the bath of liquid carbon dioxide before extracting the fabric roll from the treatment chamber.
  • the washing process provides to remove the carbon dioxide from the fibers of the fabric before winding it on the winding/unwinding roller.
  • the process provides to perform a mechanical removal action by squeezing/compressing the fabric to remove a first part of liquid carbon dioxide from it, and a thermal removal action by heating the fabric to make it evaporate and remove the residual carbon dioxide.
  • the mechanical removal action and the thermal removal action are performed in temporal sequence one immediately after the other, so as to optimize the overall efficiency of the removal and to obtain a substantially dry fabric before winding it onto the winding/unwinding roller at exit.
  • the roll ready to be extracted from the treatment chamber at the end of the washing process will have a weight that substantially corresponds to the weight that it had when it entered, except for the substances and oils removed.
  • the roll of fabric exiting from the treatment chamber can be used directly, or subjected to further work processes, without needing to provide intermediate treatment steps to remove the residual carbon dioxide, with a consequent reduction in overall production times and costs.
  • Embodiments described here with reference to fig. 1 refer to a washing machine 10 usable in the fabric production sector, for example for the removal of oils and/or paraffins or other textile auxiliaries used during the spinning and/or weaving step.
  • the washing apparatus 10 comprises at least one treatment chamber 14 inside which a roll of fabric 12 to be washed can be introduced.
  • fabric 12 here and hereafter in the description, we mean fabrics generally consisting of textile fibers of the animal, plant, artificial, synthetic or mixed type.
  • the fabrics 12 can also be open fabrics, tubular fabrics, or fabrics folded longitudinally on themselves and sewn.
  • the washing apparatus 10 also comprises a recovery and recirculation circuit 16 of the washing fluid, in this case carbon dioxide (CO 2 ).
  • the treatment chamber 14 is provided with a liquid CO 2 entrance 17 disposed on a lateral wall of the treatment chamber 14, and a liquid CO 2 exit 18 disposed in correspondence with a bottom wall.
  • the liquid CO 2 exit 18 cooperates with a containing tank 22 disposed inside the treatment chamber 14, suitable to contain a bath 23 of liquid carbon dioxide in which the fabric 12 to be washed can be made to transit.
  • the treatment chamber 14 also comprises a gas aperture 19 through which the carbon dioxide in a gaseous state can transit.
  • the recovery and recirculation circuit 16 can comprise pressure regulation means 30, 32 associated with the treatment chamber 14 in correspondence with the gas aperture 19, and configured to set and adjust a desired pressure inside it.
  • the recovery and recirculation circuit 16 can also comprise at least one liquid carbon dioxide collection tank 36, connected to both the liquid CO 2 entrance 17 and also to the liquid CO 2 exit 18.
  • the recovery and recirculation circuit 16 can comprise a condenser device 34, connected to the pressure regulation means 30, 32 and the collection tank 36, and configured to condense the gaseous carbon dioxide, obtaining liquid carbon dioxide.
  • the treatment chamber 14 comprises at least one pair of winding/unwinding rollers 20a, 20b configured respectively to wind and unwind a roll of fabric 12 from one to the other.
  • the fabric 12 to be washed is wound onto a first unwinding roller 20a and drawn onto a second winding roller 20b.
  • the treatment chamber 14 can comprise one or more return rollers 21 configured to define a travel P for the fabric 12 inside the treatment chamber 14 and to keep the fabric 12 stretched between one and the other winding/unwinding rollers 20a, 20b.
  • fig. 1 shows one sense for the travel P from the unwinding roller 20a to the winding roller 20b
  • the winding/unwinding rollers 20a, 20b can be interchangeable, so that both can perform the function of winding or unwinding of the fabric 12, so that it is possible to invert the travel P of the fabric 12, unwinding it from the unwinding roller 20b and winding it onto the winding roller 20a.
  • delivery nozzles 24 can be provided inside the treatment chamber 14, configured to deliver carbon dioxide in liquid form onto the fabric 12 during the winding/unwinding thereof.
  • the delivery nozzles 24 are fed by the recovery and recirculation circuit 16 through the liquid CO 2 entrance 17.
  • the treatment chamber 14 can comprise inside it beating rollers 25, configured to beat the fabric 12 in the section of travel between one and the other of the winding/unwinding rollers 20a, 20b, creating a mechanical beating action, so as to increase the movement of the fabric 12 itself and thus further promote the removal of the pollutant substances.
  • the apparatus 10 comprises at least one removal device 29 configured to remove the liquid carbon dioxide substantially completely from the fabric 12 at the end of the washing treatment.
  • the removal device 29 is disposed inside the treatment chamber 14, in an intermediate position between the containing tank 22 and the winding roller 20a, 20b, on which the fabric 12 is wound at the end of the treatment.
  • the apparatus 10 can comprise two removal devices 29, each of which is disposed between one of the winding/unwinding rollers 20a, 20b and the containing tank 22.
  • the fabric 12 can be dried suitably both in the case of a washing process with an odd number of washing cycles and also in a washing process with an even number of washing cycles, wherein by washing cycle we mean the complete unwinding/winding of the fabric 12 from one to the other of the winding/unwinding rollers 20a, 20b.
  • the removal device 29 comprises a mechanical removal member 27, suitable to exert a mechanical action on the fabric 12 in transit downstream of the carbon dioxide bath 23 to remove at least a part of the carbon dioxide trapped in its fibers.
  • the removal device 29 also comprises a thermal removal member 28 configured to heat the fabric 12 and to make the remaining part of carbon dioxide still trapped in its fibers evaporate before winding it onto one of the winding/unwinding rollers 20a, 20b at the end of the washing treatment in order to make the carbon dioxide retained in the fabric 12 gaseous.
  • the thermal removal member 28 is disposed directly downstream of the mechanical removal member 27.
  • the mechanical removal member 27 can comprise at least one squeezer roller 26 cooperating with a drawing or return roller 21a, idle or drawing, to squeeze the fabric 12 in transit so as to remove from it most of the liquid carbon dioxide retained in its fibers.
  • the thermal removal member 28 can be, for example, a heated roller with a single-chamber or double chamber, on which the fabric 12 can be made to transit.
  • the thermal removal member 28 can comprise one or more heated plates.
  • the thermal removal member 28 can comprise, or be connected to, heat generation means, for example steam generators, resistances, diathermic oil, hot water, infrared rays, ultrasounds, or other.
  • heat generation means for example steam generators, resistances, diathermic oil, hot water, infrared rays, ultrasounds, or other.
  • more squeezer rollers 26a can be provided, disposed in correspondence with the containing tank 22, to squeeze/compress the fabric 12 at exit from the liquid carbon dioxide bath 23 before immersing it into it again.
  • the carbon dioxide recovery and recirculation circuit 16 can comprise a plurality of pipes and communication and transit lines for the carbon dioxide, provided with one or more regulation/interception valves.
  • the valves can be opened or closed to allow or prevent the transit of the carbon dioxide in the respective pipe or respective communication line, and possibly to adjust the flow rate.
  • a washing apparatus 10 can comprise two or more treatment chambers 14 which can share a single carbon dioxide recovery and recirculation circuit 16.
  • each treatment chamber 14 can be selectively connected on each occasion with the pressure regulation means 30, 32, with the collection tank 36 and/or with another treatment chamber.
  • the recovery and recirculation circuit 16 also comprises at least one suction device 30 configured to suck up the gas present in the treatment chamber 14 so as to define a desired pressure inside it.
  • the recovery and recirculation circuit 16 also comprises a compression device 32, which can be connected to the treatment chamber 14 by means of the gas aperture 19.
  • the compression device 32 is a dry compressor, which acts on carbon dioxide in gaseous form.
  • the compression device 32 is also connected to the suction device 30.
  • the compression device 32 is disposed downstream of the suction device 30 so as to receive at entrance the gaseous carbon dioxide sucked in by the latter from the treatment chamber 14.
  • the recovery and recirculation circuit 16 also comprises a condenser device 34 which can be connected to the compression device 32.
  • the condenser device 34 can also be connected to the collection tank 36 of the liquid carbon dioxide.
  • the treatment chamber 14 is also connected to the collection tank 36 by the liquid CO 2 exit 18 in correspondence with the accumulation zone of the liquid carbon dioxide.
  • the apparatus 10 is able to recover substantially all the carbon dioxide used for each washing treatment of the fabrics 12 in the treatment chamber 14, obtaining only the oils and the substances extracted as waste to be eliminated.
  • the apparatus 10 allows to recover the carbon dioxide in liquid form through the liquid CO 2 exit 18 and to recover the carbon dioxide in gaseous form through the gas aperture 19.
  • the washing apparatus 10 allows to perform a "semi-continuous" treatment of the fabric 12, or to perform a washing treatment on a first roll of fabric 12 in a first treatment chamber 14 while at the same time a second treatment chamber (not shown) can be cleared of the previous washing cycle and loaded with a second roll of fabric 12 to be treated.
  • Embodiments described here also concern a process for washing a fabric 12 in a treatment chamber 14.
  • the washing process comprises: inserting a roll of fabric 12 into a treatment chamber 14, said fabric 12 being drawn on a plurality of rollers 20, 21; impregnating the fabric 12 by spraying liquid carbon dioxide onto it; immersing it into the liquid carbon dioxide bath 23, and winding it onto a winding roller 20.
  • the treatment chamber 14 is closed and pressurized.
  • the pressure inside the treatment chamber 14 can be comprised between about 10 and about 60 bar.
  • the treatment chamber 14 is depressurized to allow the roll of washed fabric 12 to be extracted.
  • the treatment chamber 14 can be subjected to a high vacuum cycle, in order to eliminate possible residues of the previous washing cycle, before being loaded with a new roll of fabric 12.
  • the treatment chamber 14 is brought to a pressure of about 0.001 bar.
  • the washing treatment provides to perform at least one fabric washing cycle, defined by the complete unwinding/winding of the fabric 12 from one to the other of the winding/unwinding rollers 20.
  • the number of washing cycles that is, the number of times a fabric 12 is unwound/wound on the respective winding/unwinding rollers 20, can be chosen depending on the type of fabric 12 and/or the type of pollutants that need to be removed.
  • the washing process can provide to make the fabric 12 pass in the liquid carbon dioxide bath 23 once, twice or more times in succession, to promote the removal of the fatty substances present on the fabric 12 which bond with the molecules of liquid carbon dioxide.
  • the fabric 12 can be made to pass inside and outside the liquid carbon dioxide bath 23 using one or more return rollers 21, suitably positioned.
  • the washing process can be carried out at washing temperatures comprised between about -40°C and about 25°C.
  • Carbon dioxide has excellent antibacterial properties, so it guarantees deep cleansing and bactericidal action even at low temperatures.
  • the washing process provides to remove substantially completely the carbon dioxide trapped in the fibers of the fabric 12 in the liquid carbon dioxide bath 23 before the roll of fabric 12 is extracted from the treatment chamber 14.
  • the washing process provides to remove the carbon dioxide from the fibers of the fabric 12 before winding it onto the winding/unwinding roller 20a or 20b.
  • the process provides to perform an action of mechanical removal by squeezing/compressing the fabric 12 to remove a first part of liquid carbon dioxide from it, and a thermal removal action by heating the fabric 12 to make the remaining carbon dioxide evaporate and to remove it.
  • the mechanical removal action and the thermal removal action are performed in temporal sequence one immediately after the other so as to optimize the overall efficiency of the removal action, and to obtain a substantially dry fabric 12 before winding it on the winding/unwinding roller 20 at exit.
  • the roll of fabric 12 at exit from the treatment chamber 14 can be used directly or subjected to further treatment processes, without needing to provide intermediate treatment steps for the removal of the carbon dioxide, with consequent reductions in the overall production times and costs.
  • the fabric washing process also provides to continuously recirculate and regenerate the carbon dioxide used in the first treatment chamber 14 during a washing cycle through the recovery and recirculation circuit 16, and to re-use it in a closed circuit in the second treatment chamber 14.
  • the liquid carbon dioxide can be continuously undercooled and/or maintained at the specific temperature at which the process is to be carried out, for example by means of undercooler devices and/or heaters, not shown.
  • the undercooler device can cool the carbon dioxide to a temperature of about -40°C, so as to keep it in the state of undercooled liquid.
  • the liquid carbon dioxide used in the treatment chamber 14 can be continuously filtered during the washing cycle in order to eliminate the impurities and pollutant substances collected therein.
  • the liquid carbon dioxide can be extracted from the treatment chamber 14 to be cleaned of the apolar substances removed during the washing cycle, such as for example oils, fatty substances, paraffins.
  • the liquid carbon dioxide can be cleaned and regenerated in combination with or as an alternative to ultrafiltration, with other membrane technologies such as microfiltration, nanofiltration or reverse osmosis for example.
  • the liquid carbon dioxide containing the pollutant substances can be distilled without using ultrafiltration.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

  1. Entfernvorrichtung (29) zum Entfernen von flüssigem Kohlenstoffdioxid aus einem Textil (12), verwendbar in einer Behandlungskammer (14) unter Druck, wobei die Behandlungskammer (14) imstande ist, das Textil (12) in einem Bad (23) aus flüssigem Kohlenstoffdioxid zu waschen, um unpolare Substanzen daraus zu entfernen, dadurch gekennzeichnet, dass die Entfernvorrichtung (29) aufweist ein mechanisches Entfernelement (27), das imstande ist, eine mechanische Aktion auf das Textil (12) auszuüben, um einen Teil des in den Fasern gefangenen Kohlenstoffdioxids zu entfernen, und ein thermisches Entfernelement (28), das eingerichtet ist, um das Textil (12) zu heizen und den verbleibenden Teil des Kohlenstoffdioxids, das noch in den Fasern gefangen ist, verdampfen zu lassen.
  2. Entfernvorrichtung (29) gemäß Anspruch 1, dadurch gekennzeichnet, dass das thermische Entfernelement (28) direkt stromabwärts von dem mechanischen Entfernelement (27) angeordnet ist.
  3. Entfernvorrichtung (29) gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass das mechanische Entfernelement (27) wenigstens eine Presswalze (26) und eine Zieh- oder Rückführwalze (21a) aufweist, wobei die Presswalze (26) eingerichtet ist, um das Textil (12) zu Pressen/Komprimieren beim Vorbeilauf gegen die Zieh- oder Rückführwalze (21a).
  4. Entfernvorrichtung (29) gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das thermische Entfernelement (28) wenigstens eine beheizte Walze mit einer Einzel-Kammer oder einer Doppel-Kammer aufweist, um welche das Textil (12) vorbeilaufen gelassen wird.
  5. Entfernvorrichtung (29) gemäß irgendeinem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das thermische Entfernelement (28) eine oder mehrere beheizte Platten aufweist.
  6. Entfernvorrichtung (29) gemäß irgendeinem vorigen Anspruch dadurch gekennzeichnet, dass das thermische Entfernelement (28) Wärmeerzeugungsmittel aufweist, wie z.B. Dampferzeuger, Widerstände, diathermisches Öl, Heißwasser, Infrarotstrahlen oder Ultraschall.
  7. Vorrichtung zum Waschen von Textilien (12), aufweisend wenigstens eine Behandlungskammer (14), um eine Waschbehandlung an einem Textil (12) durchzuführen unter Verwenden von Kohlenstoffdioxid, und einen Rückgewinnungs- und Rezirkulations-Kreis (16) des Kohlenstoffdioxids, der mit der Behandlungskammer (14) verknüpft ist, dadurch gekennzeichnet, dass die Behandlungskammer (14) aufweist wenigstens zwei Aufwickel/Abwickel-Rollen (20a, 20b), die jeweils eingerichtet sind, um ein gewalztes Textil (12) von einer zur anderen aufzuwickeln und abzuwickeln, und einen Behältertank (22), der imstande ist, eine Bad (23) aus flüssigem Kohlenstoffdioxid zu enthalten, durch welches das Textil (12) durchlaufen gelassen werden kann während seiner Bewegung von der einen zu der anderen der Aufwickel/Abwickel-Rollen (20), und dass die Vorrichtung wenigstens eine Entfernvorrichtung (29) gemäß irgendeinem der Ansprüche 1 bis 6 aufweist, die in der Behandlungskammer (14) angeordnet ist in einer Zwischenposition zwischen dem Behältertank (22) und der Rolle (20a, 20b), auf welche das Textil (12) am Ende der Behandlung aufgewickelt wird.
  8. Vorrichtung zum Waschen von Textilien (12) gemäß Anspruch 7, dadurch gekennzeichnet, dass sie zwei Entfernvorrichtungen (29) aufweist, von denen jede zwischen einer der Aufwickel/Abwickel-Rollen (20a, 20b) und dem Behältertank (22) angeordnet ist.
EP17726942.0A 2017-05-31 2017-05-31 Vorrichtung zum entfernen von fluiden und waschvorrichtung mit dieser vorrichtung Active EP3631072B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2017/063124 WO2018219441A1 (en) 2017-05-31 2017-05-31 Device to remove fluids, and washing apparatus comprising said device

Publications (2)

Publication Number Publication Date
EP3631072A1 EP3631072A1 (de) 2020-04-08
EP3631072B1 true EP3631072B1 (de) 2022-09-07

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EP (1) EP3631072B1 (de)
CN (1) CN110662863A (de)
TW (1) TW201903241A (de)
WO (1) WO2018219441A1 (de)

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US4012194A (en) 1971-10-04 1977-03-15 Maffei Raymond L Extraction and cleaning processes
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CN203128835U (zh) * 2013-01-08 2013-08-14 黄御玮 一种织带浸渍水洗装置
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CN105710989A (zh) * 2016-03-21 2016-06-29 江苏通用科技股份有限公司 超临界二氧化碳密炼装置
CN205856839U (zh) * 2016-07-22 2017-01-04 诏安县鹏达机械设计部 一种一体式纺织布料清洗烘干机

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EP3631072A1 (de) 2020-04-08
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CN110662863A (zh) 2020-01-07

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