JP2005120568A - Apparatus and method for wet heat treatment of continuous textile substrate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide apparatus for wet heat treatment of a continuous textile substrate, solving problems of known apparatus and overcoming their defects. <P>SOLUTION: The invention relates to the continuously operating apparatus for the wet heat treatment of the continuous textile substrate advancing in a predetermined direction, wherein the apparatus comprises a unit for hydro-thermal treatment of the textile substrate comprising a chamber able to contain a heated treatment fluid, a group for conveying the textile substrate into the hydro-thermal treatment unit, and a group for conveying the textile substrate out of the hydro-thermal treatment unit, characterized in that it also comprises pressure sealing groups, said pressure sealing groups being associated with said substrate conveying groups so as to close said chamber in a substantially sealed manner so that the treatment fluid may be pressurized to a pressure higher than atmospheric pressure. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to the field of textile products, and in particular to hydrothermal heat treatment of continuous textile bodies. More particularly, the present invention relates to an apparatus and method for heat-moisture treatment of a continuous fabric base.

  In a continuous fabric substrate manufacturing cycle, the manufacturing problem is particularly that there are two very different processes between the unprocessed weaving process and the final garment process: a hydrous process and a drying process. It can be specified.

  For example, with particular reference to fabrics mainly comprising wool fabrics and wool fibers, the basic sequence of preparatory work is "washing-setting-dying" or "washing-striping-fulling-dying". It becomes.

  The shrinking and dyeing process is carried out in a water bath at very high temperatures, in the presence of chemicals and under forced mechanical action, so it must not be pre-stretched into the fabric. However, it is known that some unrecoverable physical and mechanical deformation occurs.

  Stitching the fabric or fixing the fabric on a flat planar structure essentially means that the fabric is flattened and expanded in a properly squeezed form for hydrous heat treatment. In the hydrous heat treatment, a temperature somewhat higher than the temperature in the subsequent shrinking and / or dyeing step is reached. Since the temperature of the water tank for dyeing the woolen fabric is close to the boiling point, the temperature in the hydrothermal treatment must be at least 100 ° C.

  The oldest textile-strip technology is usually based on a discontinuous system where the fabric is alternately unwound and re-wound between two beams and immersed in a hot water bath, and finally the fabric Is cooled by passing through a cold water tank and accumulated at the outlet of the apparatus. The temperature of the treatment tank is changed from a minimum of 60 to 80 ° C. to a boiling point. In some cases, a reducing agent is added into the aquarium. This reducing agent promotes and accelerates the reaction of making wool fibers. The most well known and often used of these types of techniques are the simpler techniques of “potting” and the more sophisticated techniques of “crabbing”. It is.

  Both of these techniques usually give partly a sufficient degree of striping with the aid of chemicals that favor the intermolecular reaction of wool fibres. However, treatment with chemical assistance inevitably suffers from increased affinity for fiber dyeing. This problem leads to an increase in the non-uniformity of the dye and the resulting defect in the intensity and color uniformity of the dyeing.

  However, the biggest downside is that both very low productivity and high labor intensity occur.

  The more modern clubbing is of continuous operation and differs from previous methods in terms of actual strip making technology.

  A newer and more efficient improvement of continuous clubbing is essentially the use of a belt with a base structure that is rigid and inherently non-bendable, which can be achieved by spraying silicon resin. It has an impermeable surface. These features allow steam to reach very high pressures and temperatures compared to atmospheric conditions, allowing very high specific pressures on the drum or fabric surface to be achieved. Will occur. As a result, the fabric is also heated to a temperature value much higher than the boiling point of water.

  The more modern continuous clubbing sufficiently solves the technical problems of strip processing under pressure, while it causes quality problems for the fabric, which is still solved today It has not been. The combination of the new pressure belt and the significant effect of the belt in achieving the desired pressure conditions can cause irreparable damage to the majority of the processed products, resulting in a decline in the technology. Yes.

  An attempt to design a wet strip machine incorporating a unique idea of continuous operation and the treatment of fabrics in hot water using hydrostatic superheat technology was disclosed in U.S. Pat.No. 4,152,908. ing. A heated metal drum rotates inside the tank, and the tank is almost entirely immersed in hot water. The fabric to be formed is wound around a drum surface and immersed in a heated forming tank. When the fabric is taken out from the tank, it is cooled with fresh water at the end of the moving path. Water columns are formed at the openings at the inlet and outlet of the tank, and a pressure equal to the thrust due to hydrostatic pressure is applied to the strip tank. As a result, the strip tub is heated at a temperature corresponding to its pressure, whereby basically the fabric is treated in water at a temperature slightly above 100 ° C. The second form of the device incorporates a closure device having the function of a water vapor barrier at the inlet and outlet openings of the tank, which extends from below the heated strip surface. In essence, this instrument consists of three rollers that rotate while in contact with each other, and is intended to provide a predetermined pressure to the steam on the surface of the strip. However, the cross section of the opening is not completely closed depending on the device, and the vapor flows out from the ventilation gap communicating with the outside.

The downside of this solution is that the degree of superheat obtained inevitably requires the size of the hydrostatic column to be maintained at a predetermined limit and, as a result, the temperature of the strip production tank is lowered. The size of the device is also subject to significant constraints.
U.S. Pat.No. 4,152,908

  It is a primary object of the present invention to provide a continuous wet hydrated water treatment apparatus and method that solves the problems of the known apparatus and overcomes the drawbacks.

  This object is achieved by the device according to claim 1 and the method according to claim 22 in combination with the device and method according to the other claims. The dependent claims define further advantages of the features of the invention. It is to be understood that all claims form an integral part of the specification.

  According to the first feature, according to the present invention, there is an apparatus for continuously performing a water-containing heat treatment by advancing a continuous fabric body in a predetermined direction. A unit comprising a chamber capable of containing a fluid for heat treatment; a group for transporting the fabric base into the hydrous heat treatment unit; and a group for transporting the fabric base out of the hydrous heat treatment unit; It further comprises a pressure sealing group that is integrated with the fabric transport group to close the chamber so as to be substantially sealed, thereby bringing the processing fluid to a pressure above atmospheric pressure. It is characterized in that it can be pressurized.

  Each of the transport groups preferably includes at least one powered roller.

  Each said pressure sealing group preferably comprises a substantial idler roller, said idler roller having a side surface provided with a lining of elastic material.

  The apparatus further comprises pressure transmission means, which preferably cooperate with the pressure sealing group.

  Each said pressure sealing group preferably comprises a longitudinal sealing element which engages in contact with the side of at least one of said powered rollers at its bottom.

  Each of said pressure sealing groups comprises a first lateral sealing element, said sealing element being laterally engaged with said side so as to seal the side of at least one powered roller at each end; desirable.

  Desirably, each of the pressure sealing groups comprises a second lateral sealing element that is in at least partial contact and engagement with the first lateral sealing element of the powered roller.

  Desirably, the longitudinal sealing element comprises an inflatable tube on which a sliding block element made of anti-friction material is mounted.

  Typically, the longitudinal sealing element is substantially integrated with a pair of end plates.

  Desirably, the first transverse sealing element comprises a sliding block element, the block element being substantially semi-circular and made of anti-friction material and coupled to an elastic thrust element.

  Desirably, the first transverse seal element is housed and supported in a pair of end plates.

  Desirably, the second transverse sealing element comprises a sliding block element which is substantially circular and made of anti-friction material.

  Typically, the second transverse seal element is coupled to the end wall of the idle roller and contacts and engages a pair of end plates.

  It is desirable to house a rotating, preferably heated, cylindrical drum in the chamber.

  Preferably, the chamber includes a portion that accommodates an adjustment roller for controlling the tension of the fabric substrate.

  Advantageously, the adjusting roller is operatively connected to the group for transporting the fabric body into the unit.

  Desirably, the unit for hydrothermally treating a textile substrate comprises a first circuit for supplying a processing fluid into the chamber and pressurizing the fluid.

  Desirably, the unit for hydrothermally treating a textile substrate comprises a second circuit for heating a treatment fluid within the chamber.

  It is advantageous to operably connect the supply and pressurization circuit and the heating circuit with a management system.

  Typically, the processing fluid is essentially an aqueous fluid.

  Predetermined pressure setpoint "Pset" and preset temperature setpoint "Tset" for the relationship between water temperature dependent equilibrium pressure and water pressure dependent equilibrium temperature Input to the management system so that the actual pressure "Pe" and the actual temperature "Te" of the processing fluid are measured, and these values are set to the set values "Pset" and "Pet" respectively. The actual pressure and temperature values are compared with "Tset", and if necessary, the difference between "Pe" and "Pset" and the difference between "Te" and "Tset", respectively. However, it is advantageous to correct each of these until they fall within a predetermined tolerance.

  According to a second aspect of the present invention, there is provided a method of performing a hydrous heat treatment by advancing a continuous fabric base in a predetermined direction, wherein the method comprises treating the fabric base with a hydrothermal treatment of the fabric base. A step of transporting the fabric substrate into a unit for carrying out the process, a step of hydrothermally treating the fabric substrate with a processing fluid inside the chamber, and a step of transporting the fabric substrate to the outside of the unit, Substantially sealing and closing with a pressure sealing group, and pressurizing the processing fluid in the sealed and closed chamber at a pressure higher than atmospheric pressure. is there.

  The invention will now be described by way of a detailed description, which is presented solely by way of non-limiting example given below, as read with reference to the accompanying drawings.

  FIG. 1 shows the entire first embodiment of a continuous operation apparatus 1 for hydrothermally treating a continuous substrate proceeding in a predetermined direction. Usually, the continuous substrate is a woven fabric. The apparatus 1 includes a unit 3 for hydrating a fabric, a first group 40 for transporting the fabric into the processing unit 3, a second group 41 for transporting the fabric out of the processing unit 3, A portion 6 for pre-impregnating the fabric and a portion 7 for dewatering the fabric are provided. The apparatus 1 also comprises pressure sealing groups 50, 51 that are integral with the fabric transport groups 40, 41.

  More specifically, the unit 3 for hydrating the fabric comprises a load bearing structure 30 whose inner wall 31 is substantially cylindrical and defines a substantially cylindrical chamber 32. The chamber 32 contains a cylindrical drum 33, which is preferably heated. The cylindrical drum 33 is preferably rotated about the axis 330 by known motor means (not shown).

  The cylindrical drum 33 is separated by the side surface 331. The side 331 and the inner wall 31 of the load bearing structure 30 define a first portion 320 of the chamber 32.

  The inner wall 31 of the load bearing structure 30 comprises an upper central portion 310 and upper side portions 311, 312, which side portions introduce a fabric into the processing unit 3 and a second chamber portion 321 for removing the fabric from the processing unit 3. 322. Inner wall 31 further includes a portion 313 defining a third chamber portion 323. The third chamber portion contains a member for controlling the tension of the fabric. The second portions 321 and 322 are open at the top, and rotatably support rollers 332 and 333 for moving the fabric, respectively, and the third chamber portion 323 includes a pair of direction changing rollers 334 and the fabric. A roller 335 disposed between the pair of rollers for adjusting the tension of the roller is rotatably supported inside. The adjustment roller 335 is preferably operably connected to an electronic management system (known and not shown) of the apparatus.

  The hydration unit 3 also includes a first circuit 34 for supplying and pressurizing a processing fluid 35 and a second circuit 36 for heating the fluid 35.

  The first circuit 34 basically includes a tank 340 containing a processing fluid, a pump 341 for supplying and pressurizing the fluid to the chamber 32, a suction pipe 342 for sucking the fluid from the tank 340, A pipe 343 leading to the third portion 323 and a pipe 344 for returning or flowing excess fluid from the chamber 32 back to the tank 340 are provided. It is preferable to incorporate the pressure transmitter 343a along the pipe 343. Further, a pipe 345 for supplying a processing fluid is connected to the tank 340, and a control valve 345a is incorporated in this pipe. A water level measuring device 340a is disposed inside the tank 340. The pressure transmitter 343a and the control valve 345a are operatively connected to an electronic management system (known and not shown) of the apparatus.

  The second heating circuit 36 includes a pump 360 for recirculating the processing fluid and a pipe integrated with a heat exchanger 361 for the heated processing fluid. The heat exchanger 361 is connected to a pipe 362 communicating with the second portion 322 of the chamber 32 on the piping side. The pump 360 is also connected on the intake side to a pipe 363 that connects to the pipe 343 of the first circuit 34.

  The temperature converter 362a is preferably incorporated along the tube 362. Furthermore, the heat exchanger 361 has a supply pipe 364 for supplying a known heating fluid such as steam, heat-permeable oil, etc., and a pipe 365 for discharging the heating fluid. A control valve 364a is incorporated along the supply pipe. The temperature converter 362a and the control valve 364a are preferably operatively connected to an electronic management system (known and not shown) of the apparatus.

  Referring to FIG. 2, according to the first embodiment, a first group 40 for conveying the fabric to be introduced includes a developing roller 42, a pair of powered rollers 400 coupled to motor means 402, and (in FIG. A transmission means 403 (shown schematically).

  Similarly, referring to FIG. 3, the group for transporting the fabric to be transported according to the first embodiment includes a developing roller 43, a pair of powered rollers 400 coupled to the motor means 412, and (schematically illustrated in FIG. 1). Transmission means 413). All the powered rollers 400 are disposed on the respective axes on the same horizontal plane. Further, each pair of rollers is preferably spaced apart from each other.

  Referring to FIGS. 2, 4 and 5, the pressure sealing group 50 includes an idler roller 500, and the side 501 of the idler roller 500 has a lining 501a of a known material such as natural rubber, synthetic rubber or the like. The side surface 501 of the idle roller 500 comes into contact with the side surface 404 of the powered roller 400 and engages in the longitudinal direction. Further, the idle roller 500 is integrated with the pressure transmission means 503, 503 'in the region of the hub 502, 502' in each axial direction of the idle roller 500. These pressure transmission means are well-known, for example, air pressure, water pressure or hydraulic pressure. Or similar to these.

  4 and 5, the group 40 for transporting the fabric to be introduced (and the group 41 for transporting the fabric to be unloaded) and the sealing groups 50 and 51 are supported and accommodated by a pair of end plates 52 and 52 ′. Combined with the longitudinal and transverse sealing elements.

  The side 404 of the powered roller 400 contacts and engages the longitudinal sealing element 504 at its bottom. The sealing elements 504 are arranged mutually and parallel to the axis of the powered roller. These sealing elements 504 are integrated with the plates 52 and 52 ′.

  Further, the side surface 404 of the powered roller 400 engages and engages at least partially at each end with a first lateral seal element 506, 506 'disposed perpendicular to the longitudinal seal element. Match. The first transverse seal element is received and secured to the pair of plates 52, 52 ′.

  The idle roller 500 is coupled at its ends 508, 508 'to the second lateral seal elements 509, 509', respectively. The second transverse seal element 509, 509 'is in contact with and engages at least partially the first transverse seal element 506, 506' of the powered roller. They also contact and engage a pair of plates 52, 52 '.

  In the configuration shown in FIG. 1, the powered roller 400 is coupled to the idler roller 500, the powered roller is engaged with the longitudinal seal element 504 and the first transverse seal elements 506, 506 ', and the powered roller. 400 first transverse seal elements 506, 506 'and a second transverse seal element 509, 509' of the idle roller and a pair of second transverse seal elements 509, 509 ' Engagement with plates 52, 52 ′ forms fourth chamber portions 321a and 322a. In particular, a fourth portion 321a (see FIG. 2) communicating with the second portion 321 for introducing the fabric 2 into the processing unit 3 and a second portion 322 for removing the fabric 2 from the processing unit 3 A fourth portion 322a (see FIG. 3) of the chamber 32 is formed.

  Each longitudinal seal element 504 includes a sheet 520 that contains an inflatable tube 522 fitted with a sliding block element 524 made of anti-friction material. Each sliding block element contacts and engages longitudinally to seal the sides of each powered roller by the thrust applied by the inflatable tube. Each longitudinal sealing element is integral with a pair of plates 52, 52 '.

  The first transverse seal element 506, 506 ′ comprises a sliding block element, which is generally semi-circular and made of anti-friction material 526 and is connected to an elastic thrust element 536. The first transverse seal elements 506 and 506 ′ are respectively received and fixed in a pair of plates 52 and 52 ′, and the first transverse seal elements 506 and 506 ′ are engaged with the longitudinal seal element 504 so as to seal it vertically. To do. The first lateral seal elements also engage and engage at least partially with the end of the powered roller side surface 404 to seal it.

  The second transverse seal element 509, 509 'comprises a generally circular sliding block element made of anti-friction material. These block elements are arranged at the end of the idler roller end wall 508, 508 ′ between the axial hubs 502, 502 ′, are aligned with the side 501a and rotate with the roller 500. The second transverse seal element 509, 509 'contacts and engages the end plates 52, 52' thereby forming a contact-type seal.

  6 and 7 each show a second embodiment of the apparatus according to the present invention. The same components or parts having the same function are denoted by the same reference numerals, and detailed description thereof will not be repeated. In particular, all lateral and longitudinal sealing systems will be described substantially with reference to the first embodiment.

  In the inlet part (and outlet part) of the second embodiment, unlike the first embodiment, it can be seen that a single powered roller 400 cooperates with the idle roller 500. The axes of the powered rollers 400 of the inlet and outlet groups are preferably arranged on the same plane. The axes of the idle roller 500 of the inlet group and the outlet group are also located on the same plane.

  Returning to FIG. 1, the portion 6 for pre-impregnating the fabric 2 with the treatment fluid 35 comprises a tank 61 containing the treatment fluid and is preferably arranged at the inlet of the apparatus 1. . Portion 6 also includes a pair of bottom direction changing idle rollers 62 and a pair of top direction changing idle rollers 63. The idle rollers 62 and 63 are arranged in the tank and designed so that the fabric can rotate around these rollers.

  Still referring to FIG. 1, the portion 7 for dewatering the fabric 2 preferably comprises a pair of rollers 72 with pressure power, a dancing roller 73 and a direction changing roller 74. As shown in FIG. 1, the fabric moves around the direction changing roller 74, the dancing roller 73, and the pressure roller 72, and the pair of pressure roller 72, the dancing roller 73, and the direction changing roller 74 is for the processing removed from the fabric. These are disposed inside a tank 71 for collecting the fluid 35, and these are disposed substantially at the outlet of the apparatus 1.

  When the apparatus 1 is activated, the chamber 32 of the hydration heat treatment unit 3 is filled with the processing fluid 35 by the operation of the circuit 34. Pump 341 pumps processing fluid from tank 340 and supplies it to third portion 323 of chamber 32 until inlet portions 321 and 321a and outlet portions 322, 322a are filled with processing fluid. During this first stage, the pressure sealing group 50, 51 is not activated so as to be operable with respect to the fabric transport group 40, 41, ie the idle roller 500 is not pressed against the powered roller 400. Therefore, the processing fluid 35 flows outside the inlet and outlet portions, is collected in the reservoir 44, and returns to the tank 340 through the discharge pipe 344.

  Next, the pressure sealing groups 50 and 51 are activated so as to be operable with respect to the fabric conveying groups 40 and 41.

  In particular, the idle roller 500 is pressed in the longitudinal direction so as to come into contact with the powered roller 400 by the thrust from the pressure transmission means 503 and 503 ′. The pressure transmitting means 503, 503 ′ preferably comprises a pneumatic piston. By these pressure transmission means, the elastic lining 501a on the side surface 501 is compressed and crushed on the side surface of the powered roller. At the bottom of the roller, a longitudinal sealing element 504 is actuated by each sliding block element 524. The blocking element is pressed to contact and seal against the side surface 404 of the roller 400. The sliding block element receives an upward thrust due to the pressure applied by the inflatable tube 522. Thereby, a longitudinal seal is provided between the pressure sealing group 50, 51 and the fabric transport group 40, 41.

  The lateral seal between the pressure sealing group and the fabric transport group includes first lateral seal elements 506, 506 ′ coupled to the end of the side 404 of the powered roller 400 and the end wall of the idle roller 500. Provided by a second lateral seal element 509, 509 'located at 508, 508'.

  Thereby, the chamber 32 having the inlet portions 321 and 321a and the outlet portions 322 and 322a of the transport unit 3 is integrated with the fabric transport groups 40 and 41, the pressure sealing groups 50 and 51, and the longitudinal seal elements 504, respectively. The pair of end plates 52, 52 ′ and the transverse seal elements 506, 506 ′ and 509, 509 ′ are closed by a sealed engagement with each other. As a result, the processing fluid 35 does not flow out of the inlet portion and the outlet portion, so that the pressure can be higher than the atmospheric pressure.

  Circuits 34 and 36 are activated to maintain the processing fluid pressure and temperature, respectively, at predetermined values. Accordingly, the pressure and temperature values of the processing fluid are established within the chamber 32 of the processing unit 3 and the portions 320, 323, 321, 321a, 322, 322a of the chamber 32.

  An electronic management system (not shown) shows the relationship between the temperature dependent equilibrium pressure of the water and the pressure dependent temperature of the water in order to bring the pressure and temperature of the treatment fluid, eg water, to a predetermined value. )). This defines a predetermined setpoint of pressure “Pset” and a predetermined setpoint of temperature “Tset”, thereby measuring the actual pressure “Pe” and the actual temperature “Te” of the processing fluid. These can be compared with the set values “Pset” and “Tset”, respectively. Furthermore, the actual temperature and pressure will be corrected until the deviation between “Pe” and “Pset” and between “Te” and “Tset” is within a predetermined tolerance.

  During operation, the circuit 34 supplying and pressurizing the processing fluid measures the actual pressure of the processing fluid with a pressure transducer 343a, which sends the value “Pe” to the management system. . The management system compares the value of “Pe” with the set value “Pset” and, if necessary, the variable command for the flow rate of the pump 341 until the difference between “Pe” and “Pset” is within a predetermined tolerance. Adjust.

  During this time, the circuit 36 for heating the processing fluid draws a portion of the processing fluid from the circuit 34 by means of the pump 360, thereby passing it through the heat exchanger 361 and the chamber of the hydration heat processing unit 3. It is circulated so as to be reintroduced into the 32 outlet areas 322, 322a. The temperature transducer 362a detects the actual temperature “Te” of the fluid and transmits the value to the management system. The management system compares the value of “Te” with the set value “Tset” and, if necessary, the heating fluid, eg steam, until the deviation between “Te” and “Tset” is within a predetermined tolerance. The flow rate of the control valve 364a for supplying is adjusted.

  A processing fluid, such as water, is set and maintained at a preselected pressure higher than atmospheric pressure in circuit 34, and is set and maintained at a preselected temperature higher than the boiling point at atmospheric pressure in circuit 36. However, it need not match the temperature corresponding to this selected pressure.

  For this purpose, the maximum operating range of the pressure value is varied from 0 bar to 3.0 bar, but it is desirable to operate at a value in the range of 0.5 to 2.5 bar, more advantageously 1.0 to 2.0 bar. is there.

  The maximum temperature is given by the electronic management system based on the relationship between the water pressure and temperature in the equilibrium between the liquid phase and the gas phase. For example, when the value of the operating pressure is 0.5 to 2.5 bar, the maximum value of the temperature changes in the range of 111 ° C to 138 ° C.

  However, it is desirable to reduce the value of the operating temperature in relation to a certain allowable range of the maximum value and the safety factor, for example, in the range of 105 ° C. to 130 ° C. so as to prevent bumping in the processing fluid. .

  The cylinder 33 completely immersed in the processing fluid is also heated, but this is preferably done by introducing steam inside. The relatively small volume of the portion 320 through which the fabric conveyed on the cylinder side 331 passes allows for a reliable reduction in the volume of processing fluid, thereby shortening the heating time and reducing the temperature conditions. Guarantees precise maintenance.

  The continuous fabric 2 advances in the direction of arrow A so as to enter the apparatus 1 and is introduced into the pre-impregnation treatment unit 6 and immersed in the treatment tank 35 inside the tank 61. At this time, the bottom direction changing idle roller Assisted by 62 and the upward direction changing idle roller 63. The development roller 42 assists the subsequent engagement of the fabric with the transport group 40 and the pressure sealing group 50, particularly the engagement with the powered roller 400 and the idle roller 500. Accordingly, the fabric is disposed between the side surface 404 of the powered roller and the lining 501a of the side surface 501 of the idle roller, and the fabric proceeds in the hydration heat treatment unit 3, particularly the chamber 32, in contact with these rollers.

  Passing through the inlet portions 321a and 321 the fabric moves over the redirection roller 322 and is located on the side of the rotating and heating cylinder 33, and the chamber portion 320 is separated from this portion by the redirection roller 333. Pass until exits 322 and 322a are entered. Along this path, the redirecting roller 334 causes the fabric to turn to the third portion 323. Inside the third portion 323, the tension of the fabric is controlled by the tension adjusting roller 335 in the longitudinal direction.

  The fabric is engaged with the transport group 41 and the pressure sealing group 51 in the same manner as the groups 40 and 50 corresponding thereto, and exits the hydration heat treatment unit 3 and enters the dehydrating unit 7. The unfolding roller 43 and the redirecting roller 74 direct the fabric to the dance roller 73 and a pair of pressure rollers 72 that remove excess amounts of processing fluid from the fabric. Excess fluid is collected in tank 71 and finally the fabric exits device 1 in the direction indicated by arrow B.

  The transport of the fabric within the hydration heat treatment unit 3 and thereby within the chamber 32 is carried out by the operation of the transport groups 40, 41 which are in contact with and engaging the pressure sealing groups 50, 51. Synchronized by a roller 335 which is assisted by a cylinder 33 arranged in between and adjusts the tension of the fabric.

  The powered roller (or independent roller) 400 of the transport group 40 is rotated by motor means 402, and the roller 400 is connected to known transmission means 403, for example, belt and pulley type means. As a result, the rollers 500 of the pressure sealing group 50 also rotate by contacting and engaging with the rollers 400, respectively. Similarly, the powered roller (or independent roller) 400 of the transport group 41 is rotated by the motor means 412, and the roller 400 is connected to a known transmission means 413, for example, a belt and pulley type means. As a result, the rollers 500 of the pressure sealing group 51 also rotate by contacting and engaging with the rollers 400, respectively.

  The preselected speed of moving the fabric 2 is regulated by adjusting the motor means 412 downstream of the chamber 32 so that the rotational speed of the group 41 powered rollers is substantially constant and the group 40 powered Substantially equal to the speed of the roller. However, the fabric may be subjected to a positive or negative tensile stress in the longitudinal direction along the path of movement within the chamber 32. The tension adjusting roller detects the magnitude of these tensile stresses and transmits the value to the electronic management system. The electronic management system compares this value with a preset tension value. If necessary, the electronic system is operated by the motor means 402 upstream of the chamber 42 to change the rotational speed of the roller 400 in order to counteract the longitudinal tensile stress. The cylinder 33 is rotated by known motor means coupled to the axial hub 330. Preferably, the motor means for rotating the cylinder 33 is electronically connected to the motor means 412 so that the linear speed of the cylinder follows the linear speed of the rollers 400 of the group 41 and is substantially equal.

  While moving past the hydration heat treatment unit 3, the fabric is immersed in a treatment fluid, such as water. This processing fluid completely fills the chamber 32 and is associated with the fabric transport groups 40, 41 by respective engagement with the pair of end plates 52, 52 'and by the action of the longitudinal and transverse sealing elements. Outflow from portions 321a and 322a is prevented by the effective operation of pressure sealing groups 50,51. However, the mechanical sealing action of the sealing element is not hermetic and can lead to wear, so that gradual infiltration and loss of processing fluid from portions 321a and 322a can occur. Become. Circuit 34 refills chamber 32 by a tube 344 that causes fluid loss due to leakage from chamber 32, pressure sealing groups 50, 51 and outflow into reservoir 340 from where fluid accumulates. Fulfill. Fluid will be reintroduced into the cycle from tank 340 by pump 341. Further, the source of consumption of the processing fluid is due to a part being absorbed by the fabric 2 carried out from the hydration heat treatment unit 3. The amount of the processing fluid absorbed by the fabric is automatically refilled inside the chamber 2 by pumping up the fluid stored so as to accumulate in the tank 340 with the pump 341. As the volume of fluid in the tank 340 decreases continuously, the water level meter 340a interacts with the management system to open the control valve 345a that replenishes the new fluid and allows the fluid to accumulate in the tank. refill.

  Hydration heat treatment of woven fabrics, in particular woven fabrics containing part of wool or wool fibres, is essentially intended to perform a strip forming treatment.

  It is known that wool striping can be carried out at two temperature-dependent strength levels according to the known glass transition curve, which temperature depends on the moisture contained in the fiber.

  Therefore, it is possible to compare a weak and easily removable adhesive process with a permanent process that is strong and can withstand the subsequent large water treatment.

  In order to dye wool fabrics, this treatment is carried out in an aquarium and at atmospheric pressure, and therefore at temperatures below 100 ° C, but at higher temperatures to prevent mechanical folding of the fabric and swelling of the surface. It is necessary to pre-treat the fabric using.

  Due to the pressurization conditions in the tank, the hydration heat treatment achieved by the apparatus according to the present invention at a temperature much higher than the boiling temperature of water achieves a substantially permanent treatment of wool fibers and fabrics. Make it possible.

  The device according to the invention guarantees the optimum conditions during the physicochemical treatment of textile fibers by a technique essentially based on hydraulic technology.

  The present invention provides a continuous cycle process at the very fast working speed possible, thus realizing greater plant productivity and plant management by only one worker.

  The pressurization of the treatment fluid according to the invention makes it possible to guarantee predetermined hydration heat treatment conditions. This condition can be varied within a certain range so that it can be adapted to the required processing level.

  In the device according to the invention, it is an advantage that no pressure belt is required, so that the risk of damaging the fabric is eliminated.

It is a substantial sectional view showing typically the device concerning a first embodiment of the present invention. FIG. 2 is a substantial cross-sectional view schematically showing an enlarged inlet portion of the apparatus shown in FIG. FIG. 2 is a substantial cross-sectional view schematically showing an enlarged exit portion of the apparatus shown in FIG. FIG. 6 is a cross-sectional view taken along the line AA in FIG. FIG. 5 is a sectional view taken along line BB in FIG. It is a substantial sectional view which expands and shows typically an entrance portion of a device concerning a 2nd embodiment of the present invention. It is a substantial sectional view which expands and shows typically the exit portion of the device concerning a 2nd embodiment of the present invention.

Explanation of symbols

1 Operating device
3 Hydration unit
6 Pre-impregnation section
7 Dehydration processing section
30 Strength structure
31 Inner wall of load-bearing structure 30
32 chambers
33 drums
34 First circuit
35 Processing fluid
36 Second circuit
40 Weaving Group 1
41 Weaving second group
42, 43 Roller
44 Reservoir
50, 51 Pressure sealing group
52, 52 'end plate
61 tanks
62 Bottom idle roller
63 Upper idle roller
72 Roller with pressure power
73 Dance Laura
74 Direction change roller
310 Upper middle part of inner wall 31
311, 312 Upper side of inner wall 31
320 First part of chamber 32
321,322 Second part of chamber 32
321a, 322a Fourth part of chamber 32
323 Third part of chamber 32
330 Axis of drum 33
331 Side of drum 33
332,333 Weaving roller
334 direction change roller
335 Tension adjustment roller
340 tanks
340a Water level measuring instrument
341, 360 pump
342 Suction tube
343 Piping
343a pressure transmitter
344, 345, 362, 363, 365 tubes
345a, 364a control valve
361 heat exchanger
362a temperature transducer
364 supply pipe
400 Powered roller
402, 412 Motor means
403, 413 Transmission means
404 Side of powered roller 400
500 Idol Roller
501 Idol roller 500 side
502, 502 'hub
503,503 'Pressure transmission means
504 Longitudinal sealing element
506, 506 'first transverse sealing element
509,509 'second transverse seal element
522 inflatable tube
524 Slide block element
526 Anti-friction material
536 Elastic Thrust Element

Claims (25)

An apparatus (1) for continuously performing hydrous heat treatment by advancing a continuous fabric base (2) in a predetermined direction (AB),
A unit (3) comprising a chamber (32) capable of containing a heat treatment fluid (35) for hydrothermal treatment of the textile substrate (2);
A group (40) for transporting the textile substrate (2) into the hydrous heat treatment unit (3);
A group (41) for conveying the fabric substrate (2) out of the hydrous heat treatment unit (3),
Further comprising a pressure sealing group (50,51),
The pressure sealing group is integrated with the fabric transport group (40, 41) to close the chamber (32) to substantially seal;
Thus, the apparatus is characterized in that the processing fluid (35) can be pressurized to a pressure higher than atmospheric pressure. The device (1) according to claim 1,
A continuous wet water treatment apparatus for wet fabrics, wherein each of the transport groups (40, 41) includes at least one powered roller (400). In the device (1) according to claim 1 or 2,
Each pressure sealing group (50, 51) comprises a substantial idler roller (500), said idler roller having a side surface (501) provided with a lining (500a) of elastic material, continuous Hydrated water treatment equipment for simple fabrics. In the device (1) according to any one of claims 1 to 3,
Further comprising pressure transmission means (503,503 '),
The continuous water-based wet water treatment apparatus, wherein the pressure transmission means (503, 503 ') cooperates with the pressure sealing group (50, 51). In the device (1) according to any one of claims 2 to 4,
Each pressure sealing group (50, 51) comprises a longitudinal sealing element (504);
A continuous hydrothermal treatment device for wet fabrics, characterized in that the sealing element engages at the bottom thereof in contact with the side surface (404) of the at least one powered roller (400). In the device (1) according to any one of claims 1 to 5,
Each of said pressure sealing groups (50, 51) comprises a first transverse sealing element (506, 506 '),
A continuous fabric substrate, characterized in that the sealing element is laterally engaged with the side surface to seal the side surface (404) of at least one powered roller (400) at each end. Heated water treatment equipment. The device (1) according to claim 6,
Each of said pressure sealing groups (50, 51) comprises a second transverse sealing element (509, 509 ');
A continuous wet hydrated water treatment device, characterized in that the sealing element engages at least partially in contact with the first transverse sealing element (506, 506 ') of the powered roller. In the device (1) according to any one of claims 5 to 7,
The longitudinal seal element (504) comprises an inflatable tube (522);
A continuous wet water treatment apparatus for a textile fabric, wherein a sliding block element (524) made of an anti-friction material is mounted on the tube. In the device (1) according to any one of claims 5 to 8,
A continuous wet hydrated water treatment apparatus, characterized in that the longitudinal sealing element (504) is substantially integrated with a pair of end plates (52, 52 '). In the device (1) according to any one of claims 6 to 9,
The first transverse sealing element (506, 506 ') comprises a sliding block element (526);
A continuous wet hydrated water treatment device, characterized in that the block element is substantially semi-circular and made of a friction-proof material and is connected to an elastic thrust element (536). In the device (1) according to any one of claims 6 to 10,
A continuous wet hydrated water treatment apparatus characterized in that the first transverse sealing element (506, 506 ') is housed and supported by a pair of end plates (52, 52'). The device (1) according to any one of claims 7 to 11, characterized in that the second transverse sealing element (509, 509 ') comprises a sliding block element made of a substantially circular anti-friction material. A continuous wet water treatment device for textile fabrics. Device (1) according to any one of claims 7 to 12,
The second lateral sealing element (509, 509 ') is coupled to an end wall of the idle roller (500) and contacts and engages a pair of end plates (52, 52'). A continuous wet water treatment device for textile fabrics. The device (1) according to any one of claims 1 to 13,
A continuous wet water treatment apparatus for wetted fabrics, characterized in that a rotating, preferably heated, cylindrical drum (33) is accommodated in the chamber (32). In the device (1) according to any one of claims 1 to 14,
The continuous hydrothermal treatment of a fabric base, characterized in that the chamber (32) comprises a portion (323) containing an adjustment roller (335) for controlling the tension of the fabric base (2). apparatus. The device (1) according to claim 15,
A continuous wet water treatment apparatus for a fabric base, wherein the adjustment roller (335) is operatively connected to the group (40) for transporting the fabric base into the unit (3). The device (1) according to any one of claims 1 to 16,
The unit (3) for hydrothermally treating the textile substrate (2) supplies a treatment fluid (35) inside the chamber (32) and a first circuit for pressurizing the fluid ( 34) A hydrothermal treatment device for continuous fabrics, characterized in that it comprises 34). The device (1) according to any one of claims 1 to 17,
The unit (3) for hydrothermal treatment of the textile substrate (2) comprises a second circuit (36) for heating the treatment fluid (35) inside the chamber (32). A heating and hydrous treatment apparatus for continuous fabric base. The device (1) according to claim 17 or 18,
A continuous wet water treatment apparatus for wet fabrics, characterized in that the supply and pressure circuit (34) and the heating circuit (36) are operatively connected to a single management system. The device (1) according to claim 19,
A continuous wet water treatment apparatus for water content, characterized in that the treatment fluid is basically an aqueous fluid. The device (1) according to claim 20,
Predetermined pressure setpoint "Pset" and preset temperature setpoint "Tset" for the relationship between water temperature dependent equilibrium pressure and water pressure dependent equilibrium temperature Enter into the management system so that
Thereby, the actual pressure "Pe" and the actual temperature "Te" of the processing fluid are measured, and these values are compared with the setpoints "Pset" and "Tset" respectively.
In addition, the actual pressure and temperature values are determined in advance according to need, respectively, the divergence between the “Pe” and the “Pset” and the divergence between the “Te” and the “Tset”, respectively. A continuous wet hydrated water treatment apparatus characterized by correcting until it falls within an allowable range. It is a method of carrying out a water-containing heat treatment by advancing a continuous fabric base (2) in a predetermined direction (AB),
Transporting the fabric substrate (2) into a unit (3) for hydrothermal treatment of the fabric substrate (40),
A step of hydrothermal treatment of the fabric body with a treatment fluid (35) inside the chamber (32); and
In the method comprising the step of (41) conveying the fabric base (2) out of the unit (3),
Substantially sealing and closing the chamber (32) by a pressure sealing group (50, 51); and
A continuous hydrothermal treatment method for a fabric base, comprising a step of pressurizing a treatment fluid (35) in a sealed and closed chamber (32) at a pressure higher than atmospheric pressure. The method of claim 22, wherein
Comprising the step of bringing the processing fluid (35) to a preselected temperature,
A continuous hydrothermal treatment method for a textile fabric, wherein the temperature is higher than the boiling point of water at atmospheric pressure. 24. The method of claim 22 or 23,
Pressurizing the processing fluid inside the chamber (32) comprises pressurizing the fluid to a pressure of 0 to 3.0 bar, preferably 0.5 to 2.5 bar, more preferably 1.0 to 2.0 bar. A method for heat treatment and moisture treatment of a continuous fabric base. A method according to any one of claims 22 to 24,
The step of hydrothermally treating the fabric substrate with the treatment fluid (35) inside the chamber (32) comprises the step of completely filling the chamber (32) with the treatment fluid (35). And a continuous hydrothermal treatment method for a textile fabric.

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