WO2009010241A1

WO2009010241A1 - Method and apparatus for the wet treatment of strand-like textile material

Info

Publication number: WO2009010241A1
Application number: PCT/EP2008/005695
Authority: WO
Inventors: Maximilian Hirsch; Hartmut Ziegler; Jürgen Böhme
Original assignee: Then Maschinen Gmbh
Priority date: 2007-07-13
Filing date: 2008-07-11
Publication date: 2009-01-22
Also published as: DE102007032724A1

Abstract

In a method and an apparatus for the wet treatment of strand-like textile material, the textile material is set to circulate at least partially in a closed container (1) and is exposed to the action of at least one liquid treatment medium which is applied to the circulating material strand. That amount of the treatment medium which is absorbed in each case by the material strand (pick-up) is determined continuously in the container, and said amount of absorbed treatment medium or a value which is derived therefrom is used to optimize treatment steps.

Description

METHOD AND DEVICE FOR WET TREATMENT OF STRUCTURED TEXTILE PRODUCTS

The invention relates to a method for the wet treatment of rope-shaped textile product, in which the textile product is at least temporarily circulated in a closed container and exposed to the action of at least one liquid treatment agent which is applied to the circulating strand of goods.

Moreover, the invention relates to a device for the wet treatment of rope-shaped textile goods with a closed container receiving the textile product, with transport means for circulating the textile product in the form of an endless cord in the closed container and means for applying liquid treatment agent to the container to bring circulating strand of goods to act.

For example, in Melliand Textile Reports 69 (1988), pages 748-754, W. Christ, dr. HU from the Eltz, piece-dyeing machines are after the so-called aerodynamic System and the hydraulic systems of the jet and O- flow-dyeing machines, wherein the influence of goods failure is discussed by treatment on an aerodynamic piece dyeing machine. Such machines contain as transport for the strand of goods acted upon by a transport medium transport nozzle device, which is traversed by the goods strand and which flows through the aerodynamic system of a gaseous transport - medium and in the hydraulic systems with a liquid transport medium. In this article, among other things, the influence of the liquor ratio on the use of chemicals, auxiliaries and dyes is mentioned, it is also stated that the liquor ratio in different sizes, the consumption of chemicals and very much the consumption of salt, etc. affected.

In current practice, a theoretically assumed liquor ratio is generally used to calculate the required chemical quantities in advance. Deviations from this assumed liquor ratio from the actually existing liquor ratio, however, occasionally lead to false color or unnecessarily high consumption of chemicals.

The liquor ratio, that is to say the ratio of the total liquor (treatment agent) present in the treatment vessel to the weight of the circulating goods strand of the textile good located in the treatment vessel, depends essentially on the treatment agent, ie in particular the water absorption capacity of the textile product. The water absorption of a textile material is therefore an important and influential parameter in batch dyeing. To determine this water absorption or the water retention capacity of a textile material, there are numerous studies and publications. These Size depends on various factors, such as fiber type, fiber structure, constructions of the fabric or knitted fabric, etc. Apart from theoretical calculation methods for determining the water absorption of the textile material is often carried out an experimental determination in the laboratory, in which the weight of the dry textile material and the complete Water or liquor soaked textile material is measured.

However, both the theoretical and the experimental determination of the water retention capacity relate in most publications to a broad textile article which is present as a surface.

In a device for the wet treatment of rope-shaped textile goods, for example a discontinuous dyeing machine for dyeing the textile material in strand form, the conditions deviate substantially from those of a fabric article held in a wide range. The water retention rate of the textile product depends on further influences:

In addition to the water or liquor uptake of the textile material itself, liquor is retained within the fabric package in which the rope-shaped textile is tabbed. There are puddles where fleets stop. The amount of this liquor can not be determined in the laboratory or theoretically reasonably accurate because it depends on many machine-specific conditions. In addition, the observation of piece-dyeing machines according to the aerodynamic principle in production, for example, shows that the total fleet retained by the rope-shaped textile goods and the parcel of goods also depends on the amount of injected liquor injected in the area of the transport nozzle. at higher injection quantities (for example, additional injection by further injection nozzles or higher pump speed), the liquor level of the free liquor in the treatment vessel drops, that is, more liquor is retained in the product or in the goods package. Obviously, dynamic processes also play a role here, because the liquor takes a certain amount of time to run through the fabric package after application to the fabric strand by means of the injection nozzle and has arrived as a free liquor in the float collection space of the treatment tank of the dyeing machine.

For the reasons explained above, the water or liquor absorption of a textile material to be dyed in strand form is not sufficiently known in practice. This characteristic is usually not considered in the dyeing processes and in the context of the machine parameters, or only inadequately or inaccurately. As already mentioned, theoretically assumed values are frequently used, whereas in practice the actual values differ greatly.

The object of the invention is therefore to remedy this situation and to provide a way to optimize the wet treatment of rope-shaped textile product which is circulated in a closed treatment container.

To solve this problem, the inventive method has the features of claim 1, while a device according to the invention is the subject of claim 13.

In the new method, the amount of treatment agent (pick-up) respectively taken up by the product strand in the treatment container is continuously determined, and this quantity or the value derived therefrom, is used to optimize treatment steps.

By "treating agent" is meant water, aqueous and non-aqueous solutions, emulsions or dispersions of chemicals or dyes and the like, in short, all liquid agents which are generally summarized in textile technology under the collective term "liquor".

In the new method, the amount of the treating agent received by the fabric may be continuously determined at least during a part of the wet treatment, but it is also possible, depending on the respective process, that the amount of the received treatment agent successively at certain times during the treatment period is determined. In this case, the determination of the amount of the received treatment agent can also take place in a predetermined time cycle. In addition, it is also possible to determine the amount of the received treatment agent as a function of the method sequence, that is to say the respective quantity determination is triggered by the method sequence and resulting measured values or parameters.

The amount of treating agent received by the fabric is preferably calculated from the amounts of treating agent incorporated into the container. This results in relatively simple conditions, when measured in the calculation of the amount of the received treatment agent, the respective level of the treatment agent contained in the container and the measured value is processed. For this purpose, stored programs or algorithms implementing programs can be used, which correspond to each the level of the treatment agent in the treatment container will allow the determination of the total free treatment agent (the free treatment agent is the part of the treatment agent which is not included in the textile product (including the product package)).

The particular amount of the received treatment agent may then be used to calculate the liquor ratio (ratio of the amount of the processing agent contained in the container to the weight of the fabric) in the container, but there are also processes and procedures for their expiration or release, etc. that knowledge of the treatment product received by the textile product of the respective batch is necessary or at least desirable. The knowledge of the treatment agent absorption of the textile product allows a much more accurate determination of the total amount of treatment agent in the machine and thus, as mentioned, the liquor ratio.

With the new method, the inaccuracies resulting from the theoretical calculation or experimental determination of the liquor ratio are excluded, thus achieving a much higher reproducibility of the results of the respective wet treatment process.

The new device for the wet treatment of rope-shaped textile goods has a closed container and transport means accommodating the textile product in order to circulate the textile product in the form of an endless course of goods in the closed container. Means are provided to apply liquid processing agent to the circulating in the container strand of goods. In addition, the device according to the invention has a device for the continuous determination of the Sträng each received amount of the treatment agent and means for generating and delivering a signal indicative of the particular amount of the received from the strand processing agent or a value derived therefrom.

The transport means for the goods strand may have an acted upon with a transport medium transport nozzle device, which is traversed by the strand of goods. Known transport media are gaseous media, such as air, interactive gases, inert gases, an air-vapor mixture, etc. while the liquid transport usually include water, treatment (liquor) and the like. It should be noted that the invention is not limited to devices that operate on the jet principle with transport nozzles for the transport of the goods train. It can equally be applied to winch skids and other devices in which an endless strand of goods is circulated in a treatment vessel.

Further developments and refinements of the new method and the new device are the subject of dependent claims.

In the drawings, embodiments of the subject matter of the invention are shown. Show it:

1 shows a device according to the invention in the form of a jet piece dyeing machine operating according to the aerodynamic principle, in cross section, in a schematic illustration, illustrating the state when the plant is being filled;

2 shows the device according to FIG. 1 in a Talking illustration, omitting the control device and illustrating the state after loading the treatment container with the textile to be treated,

FIG. 3 shows the device according to FIG. 1 in a corresponding illustration, omitting the control device and illustrating the state after the introduction of an additional treatment agent from an additional container; FIG.

Fig. 4 shows the device of Fig. 1 in a corresponding representation, omitting the control device and illustrating the state when discharged from the treatment tank treatment agent (fleet), -

5 shows the device according to FIG. 1 in a corresponding illustration, omitting the control device and illustrating the state when the treatment container is refilled via an additional container;

6 shows a diagram for illustrating the filling curves of the treatment container and the additional container of the device according to FIG. 1;

Fig. 7 is a schematic representation of the data exchanges between a paint kitchen and the machine control of the apparatus of Fig. 1 and

8 shows a diagram for the schematic representation of a dyeing curve;

The cross-section schematically illustrated in FIGS. Asked high-temperature (HT) -Jet Stückfärbemaschine has a pressure-resistant cylindrical treatment container 1, in which a closable by a lid, not shown operating opening, through which a strand of goods 2 can be introduced, as it is indicated for example in Figures 2 to 5. The product strand 2 is introduced via a foreign-driven reel 3 in a Venturi transport nozzle 4, to which a Abtafler 5 connects. The Abtafler 5 sets the exiting from the transport nozzle 4 strand of goods 2 in a store 6, from which the endless fabric strand 2 is pulled out by the reel 3 again. The reel 3 and the transport nozzle 4 are housed in housing parts 7, which are connected to the container 1 liquid-tight and pressure-resistant. The product strand 2 was connected after its introduction into the container 1 at its ends to an endless loop of goods.

The memory 6 is bounded on its underside by a wall which is provided on its inside with a good sliding properties for the goods strand having top. The wall 7 is part-circular curved and formed with openings through which the fleet can pass down.

The transport nozzle 4 is acted upon by a gaseous transport medium stream, which circulates the continuous strand of goods 2, in the present case in a clockwise direction. The transport medium is in this embodiment, air or a vapor-air mixture, which is sucked by a blower 9 and a suction line 10 from the container 1 and conveyed via a pressure line 11 into the transport nozzle 4. In the pressure line 11 is a control and / or shut-off valve 12, which allows the Transportmediumsbeaufschlagung the transport nozzle 4 to control and, if necessary, shut off the blower circuit.

On the container 1, a float bottom 13 is arranged below, which contains a fleet screen 14 (Fig. 2). The floater sump 13 is connected to a suction line 15 of a liquor circulating pump 16, whose pressure line 17 contains a heat exchanger 18 and opens into the transport nozzle 4 via a control valve 19. The liquor circulation pump 16 makes it possible to circulate from the container 1 via its fleet bottom 13 sucked liquor via the transport nozzle 4 and the container 1. Parallel to the heat exchanger 18 and the liquor circulating pump 16 may be a bypass line, not shown, which contains a shut-off valve and connects the sump 13 to the pressure line 17 adjoining the heat exchanger.

In addition, a batch or additional container 20 is provided, in which a chemical treatment agent (chemicals, dyes, etc.) can be prepared in aqueous solution, emulsion or dispersion, via a treatment agent pump 21 and a connecting line 22 in the suction line 15 of the liquor circulating pump 16th can be fed.

In the connecting line 22 is a check valve 23. In addition, one of the pressure line 17 of the liquor circulating pump 16 outgoing line 24 is provided which contains a check valve 25 and leads directly into the auxiliary container 20 to treatment agent from the container 1 in the approach or additional container 20 attributed.

From the suction line 15 of the liquor circulating pump 16, a drain line 26 branches off, which contains a shut-off valve 27, which allows treatment agent from the container 1 or the sump 13, as indicated by an arrow 28. In addition, in the suction line 15 of the liquor circulating pump 16, a shut-off valve 29 is included, which allows the suction side of the liquor circulating pump 16 to be completely separated from the liquid in the container 1 and the sump 13.

Finally, with the suction line 15 of the liquor circulating pump 16, a treatment agent supply line 30 is still connected, which includes a shut-off valve 31, which allows treatment, in particular water, from a source not shown in the suction line 15 and thus fed into the liquor cycle, such as this is indicated by an arrow 32.

In the supply line 30 is a flow meter (water meter) 33, which allows to measure the amount of fed via the supply line 30 and the liquor circulating pump 16 in the fleet circle purchase amount of treatment agent.

In addition, the container 1 and the additional container 20 level or level gauge 34 or 35 are assigned, of which the level gauge 34, the liquid level in the fleet bottom 13 and / or in the container 1 continuously measure and can deliver a corresponding level measurement signal. The other level gauge 35 measures the level of liquid in the auxiliary tank 20 and also outputs a level measurement signal indicative of the respective level.

In addition to the fill level knives 34, 35, level indicators 36, 37 are schematically indicated in FIGS. 1 to 5, which give the viewer of the drawing an immediate visual impression of the respective fill level in the container 1 or the float bottom 13 and the additional floor. give container 20.

The various valves and pumps, as well as the treatment means Durchflußmesser 33 and the level gauge 34, 35 connected to a in Fig.l indicated at 38 computer, which ^' allowed ^' to control these elements according to the program. The control connections to the most important valves and pumps as well as the flow rate meter 33 and the level meters 34, 35 are illustrated in FIG. 1 by thin lines. At 39 manual input of commands and information into the computer 38 is possible.

The computer 38 and associated control lines are illustrated in FIG. 1 only. For the sake of better clarity, they are omitted in FIGS. 2 to 5.

The level gauge 34, 35 and the flow meter 33 provide via appropriate transmitter signals to the computer 38 for detecting the Behandlungsmittelfüllstandes in the treatment tank 1 and in the auxiliary container 20, and for detecting the Behandlungsmittelfüllstandes or quantities in any other additional, not shown here approach containers. At the same time the flow meter 33 provides the computer 38 via a corresponding transmitter a signal indicating the respectively introduced into the treatment tank 1 Behandlungsmittel-, in particular amount of water.

In the computer 38, which is part of the machine control here, algorithms and tables are implemented, which at any level in the treatment tank 1, the determination of the total, contained in the treatment tank 1 free amount of treatment agent, that is the entire free fleet, allow. A "free fleet" is the part of the fleet that does not sit on the textile product, that is to say the product strand 2 or the delineated product package contained in the storage 6.

Fig. 6 illustrates by means of two curves 40, 41 such a so-called Ausliterungstabelle for the treatment tank 1 (curve 40) and the auxiliary container 20 (curve 41). The special course of the two curves 40, 41 is due to the geometric shape of the liquid-receiving parts of the two containers 1 and 20.

The piece dyeing machine described so far, operating on the aerodynamic principle, is operated in a manner known per se for the uniform application of treatment agents to the circulating goods strand 2. For example, the explanations in DE 10 2005 027 070 B3 of the applicant may be referred to by way of example. A simplified typical treatment method, on the other hand, is given as an example by the schematic representation of a dyeing curve in FIG. 8, which will be explained briefly in the following.

According to the invention carried out on the described Stückfärbemaschine wet treatment process for the Textilgutstrang 2 are performed in such a way that the respectively received by the product strand 2 amount of the treatment agent (pick-up) in the treatment tank 1 is determined continuously and this amount of the received treatment agent or one of this derived value is used to optimize treatment steps.

The determination of the amount of each of the product strand 2 received amount of the treatment agent, in particular water or liquor, is done in the following manner: Before the start of the actual wet treatment process, for example a dyeing process, all liquid quantities (volumes) which are introduced into the treatment tank 1 are determined and added up. The determination of these quantities of liquid takes place during the direct filling of the treatment tank 1 via the feed line 30 by means of the flow meter 33, with the liquid quantities supplied via the additional tank 20 (or additional tanks (not shown) to the fill level determined by the level meter 35, is converted over the Ausliterungskurve of Fig. 6 in a corresponding amount of liquid. Alternatively, of course, the additional container 20, a flow meter can be assigned, which allows to determine the effluent from the additional container 20 in the suction line 15 of the liquor circulating pump 16 fluid component continuously.

This state at the beginning of the dyeing process is illustrated in FIG. 1: the treatment tank 1 is filled to fifty percent of its operational maximum charge with treatment agent, for example water, which in the example given amounts to 600 liters in the treatment tank 1 (and the Fleet bottom 13) corresponds.

The auxiliary container 20 is also filled with an additive (chemicals, dyes, etc. in solution, emulsion or dispersion) to fifty percent of its maximum filling capacity; it contains in the example chosen 120 liters of liquid.

The treatment container 1 is now loaded with the rope-shaped textile product which is connected at the ends to the endless product strand 2. The treatment container 1 is then closed pressure-tight and the fan 9 and the liquor circulating pump 16 are turned on with the valves 12, 19, 29 open, so that the product strand 2 is circulated. The additional container 20 is shut off by the valves 23, 25 from the liquor circulation with the liquor circulating pump 16.

During this loading of the treatment container with the dry textile product, liquor pump 16 of the transport nozzle 4 supplies liquor received by the product strand 2. As a result, the liquor level drops within the treatment tank 1.

This condition is illustrated in FIG. In order to ensure a safe running of the liquor circulating pump 16, it may be necessary to refill treatment agent (for example water) in the treatment vessel 1. This is automatically initiated by the machine controller illustrated by the computer 38 in response to the level meter 34 signals. The refilling amount is detected by the flow meter 33 and stored in the computer 38.

The amount of liquid received in the storage 6 on the textile product, that is to say the free-running part of the fabric strand 2 and the stranded strand package, results from the difference between the total amount of liquid introduced in the container 1 and the free quantity of liquid contained in the treatment container, that of the level meter 34 is determined and determined by the computer 38 on the basis of the Ausliterungskurve 40 (Fig. 6).

The amount of liquid picked up by the textile (pick-up) is automatically determined by the machine control computer 38 at any time. This pick-up is determined by the following algorithm:

M _G = M _E + M _N + Sum M _z + Sum M _s - Sum M _R Mp (Z) = M _G -M _F

M _Q Total fleet quantity in the machine

Mg filling quantity at initial filling

M _N refill quantity

Mg batch quantities additional container

M ₃ flushing volume additional tank

Mp Free liquor quantity according to the level in the treatment tank 1

Mp (Z) Pickup quantity as a function of the operating state of the machine

M _R from the treatment tank 1 in the auxiliary tank 20 flooded fleet

However, the amount of pickup calculated in this way depends not only on the condition and condition of the textile product, but also on the operating state of the piece dyeing machine. For example, when the liquor circulation pump 16 is at standstill, part of the quantity of liquor taken up, in particular from the stacked commodity pack contained in the storage 6, drips off and collects in the lower part of the treatment tank 1, whereby the level of free liquor in the treatment tank 1 increases again. About the level meter 34 determines the computer 38 of the machine control the recorded fleet amount (pick-up) for various operating conditions independently and stores them in its main memory. It should be mentioned that the pick-up quantity is also dependent on different machine parameters (for example, the speed of the liquor circulating pump 16, the quantity of liquor injected per unit time via the transport nozzle 4, etc.). Also, the resulting various operating conditions are detected and stored by the computer 38.

It is assumed that in the dyeing process carried out, following the treatment step explained and illustrated with reference to FIG. 2, the amount of additive contained in the auxiliary tank 20 is introduced into the treatment tank, so that the condition according to FIG. 3 results: The level in FIG the treatment tank 1 has risen over that of FIG. 2, while the auxiliary tank 20 is almost empty.

All amounts of liquid that are introduced via the additional container 20 in the treatment tank 1 so are detected by the computer 38 via the level gauge 34 and added to the total fleet amount M _G.

If treating agent is returned from the treatment vessel 1 via the connecting line 24 and the shut-off valve 25 in the auxiliary container 20, this amount of liquid is subtracted from the total amount of liquor Mg.

In the example given above, the treatment tank 1 was filled in step 1 of FIG. 1 with 600 liters of water. In the following step after Fig. 3, 120 liters of additive were pumped through the auxiliary tank 20, that is, the total amount of liquid introduced into the treatment tank amounts to 720 liters.

The free liquor is determined at this operating point on the level gauge 34 of FIG. 3 with 370 liters. Thus, the amount of liquor picked up by the textile product (pick-up) in this example and under the given parameters amounts to 350 liters. This pick-up value is stored in the computer 38.

If the (exhausted) liquor is now drained for the first time in the course of the dyeing process, only the free part of the liquor is discharged from the treatment tank 1, while the liquor fraction sitting on the commodity strand 2 remains there.

In further process sections, to calculate the total quantity of liquor applicable to the respective process section, the quantity added to the free quantity of liquor that is already on the textile product is added. The previously determined pick-up values are taken into account in accordance with the respective operating state of the machine. It follows thus:

M _G = M _F + M p (Z)

This is illustrated with reference to FIGS. 4, 5:

Fig. 4 shows the state in which the liquor is drained from the treatment tank 1, but with part of the liquor quantity (pick-up) remaining on the fabric. If the treatment tank 1 is subsequently filled again via the feed line 30 and the shut-off valve 31, or if liquor is pumped in via the additional tank 20 and the additive pump 21, the previously determined pick-up value is added to the free liquor under these operating parameters to get the total fleet amount.

In this example, after filling, the total liquor amount is 250 + 350 = 600 liters as shown in FIG. 5.

The method described here gives very accurate results in dyeing machines in which the package contained in the memory 6, for example, by the liquid-permeable wall 8, completely separated from the free fleet. If the goods package is wholly or partly in the fleet, this results in influencing the fill level value determined by the filling level meter 34, because the goods package dipping into the fleet displaces a corresponding part of the fleet. This displacement effect can be taken into account by the computer 38 when calculating the free liquor quantity in the treatment tank 1 by corresponding correction of the fill level values.

The calculation of the amount of treatment agent (pick-up value) received by the textile product on the basis of the current supplied measured values and the stored parameters can be performed continuously or at discrete times by the computer 38 depending on the respective wet treatment methods and the operating conditions and conditions of the respective wet processing machine. if appropriate, in a cycle predetermined by the computer 38, or else as a function of the process, by automatically determining when certain operating states or process steps occur. Mood of the pick-up values and their utilization in the further process takes place. In procedural stages during which the respective pick-up value is not important, its identification and / or utilization can be dispensed with.

With the pick-up value, as determined, for example, by means of the procedure explained in FIGS. 2 to 5, and with knowledge of the total treatment agent or liquor quantity, it is possible, for example, to autonomously optimize a dyeing process in several directions:

1. DETERMINATION OF THE EXACT FLEET CONDITION

With the exact knowledge of the treatment agent absorption of the textile product, the liquor ratio can be continuously determined during the entire process. As already mentioned, this liquor ratio is defined by the quotient of the total liquor quantity divided by the weight of the textile goods. Especially for dyeing machines with a low liquor ratio it is important that the total liquor quantity is used to calculate the liquor ratio. This means that not only the so-called free fleet, but also the quantity of the fleet sitting on the textile goods and in their goods package is taken into account. The fleet ratio is thus exactly:

F _v = [MG + Mp (Z)] / BF _v = liquor ratio

B = loading of machine with textile (in kilograms)

2. OPTIMUM CALCULATION OF CHEMICALS AND TOOLS Many chemicals and adjuvants are specified in the formula depending on the liquor volume to which they are added (g / l or ml / l). In current practice, a theoretically assumed liquor ratio is used to calculate in advance the required chemicals or quantities of auxiliaries. Due to deviations of this assumed liquor ratio from the actually existing liquor ratio, in practice there are again and again false colorations or an unnecessarily high consumption of chemicals.

The knowledge of the treatment agent uptake of the textile, as has been explained in the foregoing, now allows a much more accurate determination of the total amount of liquor in the machine and thus the liquor ratio.

A practical application is illustrated schematically in FIG. 7 on the basis of the direct activation of a so-called color kitchen:

The machine controller containing the computer 38 of the piece dyeing machine containing the processing tank 1 supplies the values of the actual in-machine liquor or actual liquor ratio through a dyeing control system or a dyeing network directly to the paint booth controller 42 or to a chemical dosing facility. The computer of the color kitchen controller 42 calculates the amount of chemicals required in each case immediately before the dosing in the color kitchen indicated at 43 with the actual amount of liquor. The color kitchen thus receives online based on the actual values of the liquor volume and liquor ratio recipe 44 (for example, milliliter of chemical per liter of liquor), by means of which the various dyes 44 in each predetermined amount or a quantity of auxiliaries prepared in accordance with the recipe in the auxiliary container 20, as indicated by an arrow 46, is introduced in order to be introduced from the latter into the liquor cycle (see FIG. 3).

This automatically doses and transports the correct optimum quantity of chemicals to the dyeing machine without manual operation. Inaccuracies of the current calculation, which result from the theoretical or experimental assumption of the liquor quantity, are thereby excluded, whereby a higher reproducibility of the process results is achieved.

3. ADVANCE CALCULATION OF THE FLEET RATIO THROUGH THE MACHINE CONTROL

By appropriate algorithms in the program of the machine control computer 38, the liquor ratio, based on the instantaneous determined values, can also be calculated in advance for further process sections:

For this purpose, the volumes are added to the current fleet amount in the machine by the controller, which are to be added to the dyebath in further process steps.

For example, if a coloration is used, the machine computer can calculate in advance what final liquor ratio will be available if the amount of dye (depending on the amount of dye and solubility) and the dyeing chemicals are added to the current lot in the machine.

For an explanation, refer to FIG. 8 schematically. Asked typical dyeing curve directed:

The diagram shows the temperature profile in the treatment tank 1 as a function of time during a treatment section: at the time 47, the treatment tank is filled. At time 48, a hold time begins in which the temperature is held constant and lasts until time 49 when the process bath is heated to a higher temperature. During the holding time between the times 48, 49, first, as indicated by arrows at 50, the dye is prepared in the auxiliary container 20 and then metered a short time later in the treatment vessel. Subsequently, as indicated by arrows 51, chemicals are prepared in the additional tank 20 and metered into the treatment tank 1 a short time later.

In this case, it is important to determine the actual end liquor ratio at the start of heating (time 49). To calculate this liquor ratio, the computer 38 after filling (time 47/48) analyzes the further dyeing program and determines all additional liquid volumes which are then added to the overall liquor in the treatment tank by metering in the dye and the chemicals. These calculated volumes are added to the current fleet amount (which includes the current pick-up value, as explained). In addition to the metered-in dyes and chemical batch quantities, rinsing water which may additionally be added by pumping is naturally also taken into account after a dosing operation in order to achieve the most accurate possible result.

In the case that the machine control with the computer 38 in the manner shown in Fig.7 in a dyeing Ri control system or dyeing network is integrated, the final liquor ratio thus determined, which is present at the time 49, already after filling (time 47, ie before the preparation and dosing of the dye) to the color kitchen control of the formulation system transmitted become. This allows the color kitchen controller 42 to recheck or recalculate the formula with the exact liquor ratio before it is delivered to the color kitchen 43. This achieves a considerable increase in the accuracy of the recipe instructions to the color kitchen 43 and thus also a considerable improvement in the reproducibility of the dyeing result.

4. SETTING A PRESENT FLEET RELATIONSHIP

Since the computer 38 can calculate the end liquor ratio for a process section in advance by determining the total liquor amount (including the pick-up value) and adding about any additional volumes added thereto, the engine controller may check prior to filling (time 47 in FIG. 8) calculate the filling amount of the treatment tank 1 required to have the desired end liquor ratio at the time point 49.

5. OPTIMIZING THE INJECTION QUANTITY

The optimum amount of the treatment agent injected in the region of the transport nozzle 4 is dependent on the aerodynamic principle of jet dyeing machines, inter alia, on the liquid absorption of the textile product.

In the program of the computer 38 algorithms or tables can be stored, which indicate the relationship between the fluid intake of the textile product and an optimal injection quantity for a particular machine. Since the computer 38, as explained, knows the actual pick-up value at each point in time, it can automatically determine the optimum injection quantity by means of the algorithm or the table and cause the machine control to set the corresponding machine parameters (circulating pump speed, control valve 19, etc.) to control accordingly, so that there is an optimal injection quantity.

It should be emphasized that the determination of the amount of treatment agent received by the product strand 2 in connection with FIGS. 1 to 5 is only one possible procedure for this purpose. Instead of the flow measuring device 33 and the filling level meter 34, 35, other suitable means can be used. It is essential for the invention that the amount of the treatment agent received by the textile product during the treatment is determined continuously online, and thus be used for the above-described optimizations, which represent only a non-limited section of the possible applications.

Claims

1. A method for wet treatment of strand-like textile material, wherein the textile goods at least temporarily put into a closed container in circulation and the A ^¬ effectively exposed to at least one liquid treatment agent is applied to the circulating fabric rope, wherein the amount of each picked up by the rope of the treatment agent (pick-up) in the container is determined continuously and this amount of the received treatment agent or a value derived therefrom is used to optimize treatment steps.

2. The method according to claim 1, characterized in that the amount of the received treatment agent is determined continuously at least during a part of the wet treatment.

3. The method according to claim 1, characterized in that the amount of the received treatment agent is determined sequentially at certain times during the treatment period.

4. The method according to claim 3, characterized in that the amount of the received treatment agent is determined in a predetermined time interval.

5. The method according to claim 2 or 3, characterized in that the amount of the received treatment agent is determined depending on the procedure.

6. The method according to any one of the preceding claims, characterized in that the amount of the received treatment agent is calculated from the introduced into the container treatment agent amounts.

7. The method according to claim 6, characterized in that measured in the calculation of the amount of the received treatment agent, the respective level of the treatment agent contained in the container and the measured value is taken into account.

8. The method according to any one of the preceding claims, characterized in that the respective specific amount of the received treatment agent is used to determine the total amount of treatment agent in the container.

9. The method according to any one of the preceding claims, characterized in that the respective specific amount of the received treatment agent for calculating the liquor ratio (ratio of the amount of the treatment agent contained in the container to the weight of the textile product) is used in the container.

10. The method according to claim 9, characterized in that the amount of the treatment agent contained in the container and / or the liquor ratio are used to control the addition of chemicals and / or dyes to the treatment agent and / or the amount of the to calculate treatment agents to be dosed chemicals and / or dyes.

A method according to claim 9 or 10, characterized in that a liquor ratio for future treatment steps is calculated on the basis of the respective instantaneous or in the past determined total amount of treatment agent in the container.

12. The method according to claim 11, characterized in that the filling volume of the treatment agent required for the desired liquor ratio is calculated in the container and produced at a time in the container predetermined by the treatment step.

13. The method according to any one of the preceding claims, characterized in that the amount of the received treatment agent is used for optimizing rinsing process for the washing out of non-affine products from the product strand {.

14. Apparatus for wet treatment of rope-shaped textile goods with

a closed container (1) receiving the textile product,

Transport means (4) for circulating the textile product in the form of an endless strand of goods (2) in the closed container,

Means (16) for exposing liquid processing agent to the strand of goods circulating in the container; means (33, 34, 35) for continuously determining the amount of treatment agent respectively received by the commodity strand and

Means (38) for generating and outputting a signal indicative of the amount of treatment agent or derived value received from the product strand.

15. The apparatus according to claim 14, characterized in that the means of transport for the strand of goods having acted upon by a transport medium transport nozzle device, which is traversed by the goods strand (2).

16. The apparatus according to claim 14, characterized in that the means for determining the received amount of the treatment agent, means (33, 34, 35) for determining the introduced in the container amount of the treatment agent and computer means (38), from the detected Amount of the introduced treatment agent and from additional device and / or treatment process specific parameters calculate the amount of the received treatment agent.

A device according to claim 16, characterized in that it comprises means (34, 35) for detecting the level of treatment agent in the container which deliver a level signal to the computer means (38) used by the computer means as an additional parameter.

18. Device according to one of claims 16 or 17, characterized in that the means for determining the amount of the treatment agent introduced in the container comprise a flow rate measuring device (33) which are connected to the container and a treatment agent source.

19. Device according to one of claims 14 to 18, characterized in that the device is associated with a device (42, 43) for the metered addition of chemical additives and / or dyes to the treatment agent, which for the amount of each of the goods strand Received received treatment signal characteristic signal and that the dosage of chemical additives and / or dyes is controlled in response to this signal.