JPH032987B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a processing apparatus for fabric scouring, bleaching, etc.

[Prior Art] Fibers, especially natural fibers, contain various impurities, and these impurities become obstacles when dyeing, chemical processing, etc. are carried out. Therefore, it is necessary to remove these impurities through a scouring step. In addition, trace amounts of pigment impurities contained in fibers cannot be completely removed by the scouring process alone, so it is necessary to remove them by bleaching to improve the whiteness of fabric products or enable vivid dyeing.

Scouring is carried out by impregnating the fabric with an aqueous solution of a scouring agent such as caustic soda, and bleaching is carried out by impregnating the fabric with an aqueous solution of a bleaching agent such as sodium hypochlorite or hydrogen peroxide. When the concentration of these treatment liquids changes, uneven treatment occurs on the fabric, resulting in non-uniform product quality. Furthermore, since this concentration needs to be set to an appropriate value depending on the type of fabric, the concentration of the treatment liquid must be maintained at a constant value for each type of fabric. However, since the treatment liquid is taken out of the treatment tank along with the fabric, its concentration gradually decreases as the treatment progresses.

Therefore, in the past, the following tasks were performed manually. That is, before starting treatment of a certain type of fabric, the concentration of the treatment liquid is adjusted to an appropriate value depending on the type of fabric by adding and mixing the undiluted treatment liquid or water to the treatment tank, and the concentration of the treatment liquid is adjusted to an appropriate value depending on the type of fabric. The concentration of the processing solution was measured intermittently, and whenever a drop in the concentration was found, the stock solution of the processing solution was added and mixed to adjust the concentration to a constant level. However, if this concentration adjustment takes a long time, the processing efficiency of the fabric deteriorates, so there is a problem in that a skilled person needs to carry out this work in a short time. Furthermore, since the concentration was only adjusted intermittently, there was a problem in that the concentration of the treatment liquid varied greatly.

For this reason, in Japanese Patent Application Laid-open No. 60-110966,
The concentration of the treatment liquid is automatically measured by neutralization titration, in which a neutralizing agent is added to the treatment liquid squeezed from the fabric, that is, a caustic soda aqueous solution, and at the same time, the concentration of the treatment liquid is determined based on this concentration. An automatic processing solution concentration adjustment device has been proposed that adds and mixes a caustic soda stock solution to a processing solution to achieve a predetermined concentration.

[Problems to be Solved by the Invention] As described above, the concentration of the treatment liquid must be changed depending on the type of fabric, and sometimes requires a sudden change. However, in conventional processing equipment for fabric scouring, bleaching, etc. that uses the above-mentioned automatic treatment liquid concentration adjustment device, although it is possible to maintain the concentration of the treatment liquid at a constant level, it is difficult to change this concentration to a desired value. Since the method did not have a means, it was not possible to change it automatically, and therefore, there was a problem that several types of fabrics could not be processed continuously.

Therefore, in Japanese Patent Application No. 86506/1986, which has not yet been published, the applicant of the present application proposed the following automatic adjustment device for processing solutions for fabric scouring, bleaching, etc. That is, prior to processing, the execution order of the processing regarding the type of fabric is determined in advance, the setting value of the processing liquid concentration is stored in accordance with this order, and the execution order of the processing for different types is determined in advance in the same order. The spliced fabrics are continuously transported into the processing tank. On the other hand, while a certain amount of the treatment liquid is sampled and the actual value of the concentration of the treatment liquid is determined by a titration method, the undiluted or diluted treatment liquid is supplied to the treatment tank so that the actual value is equal to the set value. In this way, while performing the adjustment operation to maintain the concentration of the treatment liquid at a desired value depending on the type of fabric, when the seam is detected, the next set value is input and the next seam is detected. Until then, the adjustment operation is executed using this new set value. The device was as described above.

However, this apparatus has a problem in that when the set concentration of the processing liquid changes suddenly, it takes a long time for the actual value of the processing liquid concentration to reach the set concentration. Therefore, it is necessary to determine the processing order of the fabrics so that the set density gradually increases or decreases, and there is also a problem that the fabrics cannot be processed in an arbitrary order.

The present invention has been made in view of the above circumstances, and is capable of maintaining a constant concentration of a treatment liquid for each type of fabric to be treated with scouring, bleaching, etc. Even if the type of treatment liquid changes, or even if it is necessary to change the concentration of the treatment liquid rapidly, the concentration of the treatment liquid can be changed in a short time.
Therefore, it is an object of the present invention to provide a processing apparatus for fabric scouring, bleaching, etc., which can smoothly and continuously perform the above-mentioned processing.

[Means for solving the problems] In order to achieve the above object, the present invention has the following features:
The configuration is shown in the figure.

Reference numeral 1 denotes a processing tank in which processes such as scouring and bleaching are continuously performed using a processing liquid on fabrics of different types joined together according to a fixed processing order. 2 is a titration tank provided to determine the concentration of the treatment liquid in the treatment tank 1 by a titration method, and 3 is a titration tank in which the treatment liquid in the treatment tank 1 is pumped into the titration tank 2 at a constant volume per unit time. This is a sampling means that collects v1 at a time. Reference numeral 4 denotes an equivalence point sensor that outputs an equivalence point indication amount E in the titration tank 2. Upon receiving the input of this equivalence point indication amount E, the titration tank control means 5 detects that the inside of the titration vessel 2 reaches the equivalence point. The amount y2 of the standard solution dropped into the titration tank is PID controlled so that the amount y2 of the standard solution dropped into the titration tank is reached.
6 is the sampling volume v of the sampling means 3
1 and the standard dripping liquid amount y2 of the titration tank control means 5, the concentration n1 corresponding to the concentration of the processing liquid in the processing tank 1 is determined.
This is a calculation means for calculating.

7 is a seam detection means that outputs a seam signal T every time it detects a seam of the fabric carried into the processing tank 1. 8 stores the processing liquid concentration S determined for each type of fabric to be processed according to the processing order of the processing liquid 1, and sequentially outputs the stored contents each time the seam signal T is input. It is a storage means for 9 is supplying an input liquid consisting of an undiluted solution or a diluted solution into the processing tank 1 so that the concentration n1 outputted from the calculation means 6 becomes equal to the processing solution concentration S outputted from the storage means 8; quantity y1
This is a processing tank control means that performs PID control. 10 is
Every time the seam signal T is input, if the treatment liquid concentration S newly output from the storage means 8 is equal to or higher than the predetermined value R, the standard solution concentration determines the standard solution amount y2 to be dropped in the titration tank control means 5. This is a changing means for increasing at least one determining factor among n2 and the dropping volume v2 of the standard solution per unit time.

The processing apparatus for fabric scouring, bleaching, etc. according to the present invention has the above configuration.

[Operation] When the processing order of the fabrics is determined, different types of fabrics are spliced according to this processing order and are carried into the processing tank 1, and are scoured and scoured by the processing liquid in this processing tank. Processing such as bleaching is performed.

During this process, the sampling means 3 collects the processing liquid in the processing tank 1 at a constant volume v1 per unit time.
Each sample is collected into the titration tank 2. Titration tank control means 5
While referring to the equivalence point indication amount E in the titration tank 2 outputted from the equivalence point sensor 4, the standard solution is dropped into the collected liquid so that the inside of the titration tank 2 reaches the equivalence point. At this time, PID control is performed on the standard solution volume y2 dropped into the titration tank 2, and the standard solution volume y2 is determined by the standard solution concentration n2 and the volume v2 of the standard solution dropped per unit time. be done.
Then, the calculation means 6 calculates a concentration n1 corresponding to the concentration of the processing liquid in the processing tank 1 from this dropping standard liquid volume y2 and the sampling volume v1 of the sampling means 3.
is calculated.

On the other hand, when the seam detection means 7 detects a seam of the fabric carried into the processing tank 1 prior to processing in the processing tank 1, a seam signal T is output.
When the storage means 8 receives the seam signal T, it outputs the processing liquid concentration S set for the fabric to be processed. The processing tank control means 9 controls the processing tank 1 from the undiluted or diluted processing solution so that the concentration n1 outputted from the calculation means 6 becomes equal to the processing solution concentration S outputted from the storage means 8. Supply the input liquid. At this time, PID control is performed on the input liquid supply amount y1. Therefore, the concentration of the treatment liquid in the treatment tank 1 is adjusted to be equal to the set concentration S, and the fabric is treated with the treatment liquid at this concentration. After this adjustment is completed, the treatment solution in the treatment tank 1 is maintained at a constant concentration set for the fabric being treated by supplying the treatment stock solution into the treatment tank 1.

When the treatment of a certain type of fabric is completed in this way, the treatment of other types of fabric spliced to this fabric is carried out continuously as follows using a treatment solution with a concentration corresponding to this new fabric. It will be held on. That is, when the seam detection means 7 outputs the seam signal T, the storage means 8 receives this input and outputs the processing liquid concentration S set for the next fabric to be processed. At this time, if the processing liquid concentration S output from the storage means 8 is equal to or higher than the predetermined value R, the changing means 10 selects one of the determining factors n2, v2 of the standard dripping liquid amount y2 of the titration tank control means 5. Increase at least one determining factor. As a result, the inside of the titration tank 2 rapidly reaches the equivalence point, and the calculation means 6 outputs the concentration n1 corresponding to the concentration of the treatment liquid in the treatment tank 1 at an early point in time. Therefore, the concentration of the treatment liquid in the treatment tank 1 is determined by the concentration n from the calculation means 6.
Upon receiving the output of 1, the processing tank control means 9 adjusts the concentration to be equal to the new set concentration S within a short time. After this adjustment is completed, the treatment liquid in the treatment tank 1 maintains a constant concentration set for the fabric being treated, as described above. In other words, the order of the spliced fabrics and the storage means 8
Processes such as scouring and bleaching the fabric can be carried out continuously and automatically by simply matching the stored order in the memory.

[Example] FIG. 2 shows the scouring of the fabric according to the example of the present invention,
It is a block diagram of the processing apparatus, such as bleaching. Here, the case of fabric scouring is shown.

The treatment tank 1 contains a caustic soda aqueous solution NaOH as a treatment liquid. An auxiliary tank 11 is connected to this processing tank, and a pipe is connected so that the caustic soda aqueous solution in the processing tank 1 is circulated between the processing tank 1 and the auxiliary tank 11 by a pump 12. In addition, the concentration of this treatment liquid needs to be 1 to 100 g/1 depending on the type of fabric.

A plurality of rollers 15 rotationally driven by an electric motor are arranged above the processing tank 1 so as to be able to sequentially transport different kinds of long fabrics a that are spliced together into the processing tank 1. One of these rollers has a tachometer 1 to measure its rotation speed.
6 is installed. The output Q of this tachometer is input to the microcomputer 20.

A reflective proximity switch 25 is disposed near the roller 5 closest to the front as the seam detection means 7. This switch outputs a seam signal T to the microcomputer 20 every time it detects the seam b of the fabric by detecting the approach of the aluminum foil 26 stuck to the seam b of the fabric.

Reference numeral 2 denotes a stirrable titration tank provided to determine the concentration of the treatment liquid in the treatment tank 1 by a titration method, and has a volume of, for example, 200 c.c.
The sampling means 3 is located in the middle of the pipeline from
, a metering pulse pump 3 driven by a pulse signal P1 from the microcomputer 20.
1 is provided. The processing liquid in the processing tank 1 is sampled by this pump at a constant volume v1 per unit time, for example, 8 c.c./min.

41 is a water tank containing water for diluting the collected caustic soda aqueous solution, and this water is supplied into the titration tank 2 by the operation of the metering pulse pump 42. Reference numeral 43 is a neutralization liquid tank containing a dropping standard solution for titration of the collected caustic soda, that is, sulfuric acid H ₂ SO ₄ , and this tank contains sulfuric acid of low concentration, for example, 1/20 normality. ing. The sulfuric acid in the neutralization liquid tank 43 is supplied into the titration tank 2 by the operation of the metering pulse pump 45 only when the valve 44 is opened. Other neutralization liquid tank 46
Highly concentrated sulfuric acid, for example 1/2 normality, is stored inside.
This sulfuric acid is supplied into the titration tank 2 by the operation of the metering pulse pump 45 only when the valve 47 is opened. These metering pulse pumps 42, 45 and valves 44, 47 receive signals P2, P from the microcomputer 20, respectively.
3, SL, and SH, and constitutes a part of the titration tank control means 5 together with the water tank 41 and the neutralization liquid tanks 43 and 46. In addition, valves 44, 47
also constitutes a part of the changing means 10.

Further, in the titration tank 2, the equivalence point sensor 4 is provided.
A PH sensor 50 is provided as a PH sensor. This sensor is a sensor that detects the point of neutralization by utilizing the fact that when an acid or alkali aqueous solution is completely neutralized, the conductivity of the aqueous solution is extremely reduced. The equivalent point instruction amount E in the tank 2 is output.

In addition, treatment tank 1, auxiliary tank 11 and titration tank 2
are provided with discharge valves 55, 56, and 57, respectively.

Reference numeral 61 denotes a tank containing a diluted solution of the caustic soda aqueous solution in the processing tank 1, and this diluted solution is supplied into the processing tank 1 by the operation of the metering pulse pump 62. Reference numeral 63 denotes a processing liquid tank containing a caustic soda stock solution, that is, a high concentration caustic soda aqueous solution for increasing the concentration of the caustic soda aqueous solution in the processing tank 1, and the stock solution in this tank is supplied to the metering pulse pump 6.
4 is supplied into the processing tank 1. These metering pulse pumps 62 and 64 also receive pulse signals P4 and P4 from the microcomputer 20, respectively.
It operates according to P5, and constitutes a part of the processing tank control means 9 together with the diluting liquid tank 61 and the processing liquid tank 63. Note that 65 is an auxiliary agent tank containing auxiliary agents such as surfactants, and the auxiliary agents in this tank are supplied into the processing tank 1 by the operation of a metering pulse pump 66. This metering pulse pump 66 operates according to a pulse signal P6 from the microcomputer 20.

Reference numeral 70 is a memory used as the storage means 8, which stores processing liquid concentrations S(N) (N=1 to K) determined for each type of fabric to be processed in accordance with the processing order of the fabrics. Remember. keyboard 72
and CRT display 74 are each provided as a man-machine interface.

Now, the microcomputer 20 acts as a part of the titration tank control means 5, the treatment tank control means 9, and the change means 10, as well as the calculation means 6, by operating according to the program described below. do.

FIG. 3 is a flowchart showing the operation of the microcomputer 20.

In step 1, the set density S(N) (N=1 to K) is input through the keyboard 72 according to the processing order of the fabric, and these values are stored in the memory 70.
will be written to. After the fabric is spliced in this same order and placed on roller 15, the rotation of this roller is driven.

After initializing the variable N to 0 in step 2, the microcomputer 20 checks in step 3 whether or not the seam signal T has been input. When this signal is not input, the value of the variable N is checked in step 4, and if it is 0, it can be seen that the fabric to be processed first has not been carried into the processing tank 1, so step 4 is started. 3 and waits for the input of the seam signal T. If N is not 0 in step 4, the process proceeds to step 8.

When the seam signal T is input, the process proceeds from step 3 to step 5. In step 5, N is incremented, and in step 6, it is checked whether all the fabrics have been processed. If there are still fabrics to be processed, the process proceeds to step 7, where the set temperature S(N) for the Nth fabric is read from the memory 70.

In steps 8 and 9, the subroutines described below, ie, the titration subroutine and the treatment liquid adjustment subroutine, are called respectively to obtain the concentration n1 corresponding to the concentration of the treatment liquid in the treatment tank 1. After adjusting the treatment liquid concentration to be equal to the set temperature S(N) of the fabric, the process returns to step 3.

FIG. 4 is a flow chart showing the processing of the titration subroutine.

In step 11, the set density S of the Nth fabric is
It is checked whether (N) is greater than or equal to a predetermined value R.
This predetermined value is set to a certain value in the range of 1 to 30 g/, for example, with respect to the processing liquid concentration of 1 to 100 g/. If it is smaller than this predetermined value, a signal SL for selecting the valve 44 is inputted in step 12 so that low concentration sulfuric acid can be supplied into the titration tank 2. On the other hand, if it is equal to or higher than the set value R, a signal SH is input to select the valve 47 in step 13, so that highly concentrated sulfuric acid can be supplied into the titration tank 2.

In step 14, a pulse signal P1 is outputted to the metering pulse pump 31, and the processing liquid in the processing tank 1 is sampled into the titration tank 2 at a constant volume v1 per unit time. In step 15, the equivalent point instruction amount E is input from the PH sensor 50, and in step 16, the deviation ε1 is input.
(=E-PH7) is calculated. Here, PH7 is the indicated amount at the equivalence point, that is, the neutralization point. Then, in step 17, titration is performed by outputting pulse signals P2 and P3 so that this deviation ε1 becomes 0. At this time, the standard liquid amount y2 dropped into the titration tank 2
PID control is performed for (=n2·v2).
In this PID control, proportional sensitivity KP, integral time
TI and differential time T _D are as follows for the above deviation ε1:
For example, 980, 40 and 20, respectively. and,
Finally, in step 18, n1=y2/y1
After calculating the concentration n1 corresponding to the concentration of the processing liquid in the processing tank 1 by the calculation, the process returns.

FIG. 5 is a flowchart showing the processing of the processing liquid concentration adjustment subroutine.

In step 21, the deviation ε2 is calculated by subtracting the set temperature S(N) of the Nth fabric from the concentration n1 determined in the titration subroutine. If this deviation is 0, that is, the concentration n1 is the set concentration S(N)
If it is equal to , the process returns from step 22 without performing any processing. If the deviation ε2 is a positive value, the concentration n1 is too high, so step
Proceed from step 23 to step 24, and the metering pulse pump 62
After outputting the pulse signal P4 and supplying the diluent to the processing tank 1, the process returns. Conversely, the deviation ε2
If is a negative value, the concentration n1 is too low, so proceed from step 23 to step 25, output the pulse signal P5 to the metering pulse pump 64, and supply the raw solution of caustic soda to the processing tank 1. , return. However, in steps 24 and 25, PID control is performed on the supply amount y1 of these input liquids into the processing tank 1. In this PID control, the proportional sensitivity K _P , the integral time T _I and the differential time T _D are:
For example, 20 and 250 for the above deviation ε2, respectively.
and 50.

In the embodiment described above, the set density is set to 1.
If there is a sudden change from g/ to 100 g/, calibration with 1/2 normal sulfuric acid is performed, and PID
The control delay time and settling time are, for example, 2 seconds and 8.3 seconds in the PID control for the titration tank 2 with the above characteristics, and in the PID control with the above characteristics for the processing tank 1 having this control loop in part. are 60 seconds and 240 seconds. On the other hand, 1/2
In the case of titration with 0 normality sulfuric acid, the control delay time and settling time are 6 seconds and 20 seconds for titration tank 2, and 70 seconds and 20 seconds for the treatment tank.
300 seconds, it can be seen that according to this example, it is possible to sufficiently improve the control followability.

In addition, if the change in the set concentration is limited to, for example, 1 to 10 g/, the sulfuric acid concentration in the neutralization liquid tank 43 should be lower than 1/2 normality, and the If the delay time and settling time of PID control regarding suitable layer 2 are set to approximately 2 seconds and 8.3 seconds,
Regarding the PID control regarding the processing tank 1, the same highly followable transient characteristics as described above can be obtained. In addition, during the above processing, the set density S(N) for each type of fabric
and the concentration n1 corresponding to the concentration of the treatment liquid in the treatment tank 1.
is executed at the appropriate time by the microcomputer 20.
It can be displayed on the CRT display 74.

Now, as the fabric a moves, the auxiliary agent in the treatment tank 1 is carried out of the tank by the fabric.
Therefore, in addition to the above-mentioned processing, which is not shown in the flowchart, the microcomputer 20 also controls the output Q of the tachometer 16 and the basis weight of the fabric in order to compensate for the decrease in the amount of auxiliary agent in the processing tank 1. After calculating this reduction amount from the weight per unit area, the required amount of auxiliary agent is supplied to the processing tank 1 by outputting a pulse signal P6 to the metering pulse pump 66.

FIG. 6 is a block diagram of a processing apparatus for scouring, bleaching, etc. of fabric according to another embodiment of the present invention. Here, the case of fabric bleaching is shown. Note that the parts other than those shown in the same figure are the same as those shown in FIG. 2, so illustration and explanation will be omitted. However, treatment tank 1
Inside is a bleaching solution, such as hydrogen peroxide solution.
H ₂ O ₂ is stored, and the processing liquid tank 63 contains a stock solution of this processing liquid, that is, a highly concentrated hydrogen peroxide solution.

The processing liquid in the processing tank 1, that is, the hydrogen peroxide solution, is
As in the case of scouring, the microcomputer 20
A constant volume v1 per unit time is sampled into the titration tank 2 by a metering pulse pump 31 driven by a pulse signal P1 from the titration tank 2.

Reference numeral 81 denotes a sulfuric acid tank containing sulfuric acid for making the collected hydrogen peroxide solution into an acidic solution. Supplied. Reference numeral 83 denotes an oxidizing liquid tank containing, for example, a 1/5 normal potassium permanganate KMnO ₄ aqueous solution as a dropping standard solution for redox titration of the collected hydrogen peroxide solution. This standard solution is supplied to the metering pulse pumps 84 and 85.
Parallel supply within the titration tank 2 is possible by operating the two systems of pumps. These quantitative pulse pumps 82, 84, and 85 operate according to signals P7, P8, and P9 from the microcomputer 20, respectively, and are part of the titration tank control means 5, along with the sulfuric acid tank 81 and the oxidizing liquid tank 83. Configure. Further, the metering pulse pumps 84 and 85 also constitute a part of the changing means 10.

Further, in the titration tank 2, the equivalence point sensor 4 is provided.
ORP sensor 90 that measures redox potential as
is provided, and this sensor outputs the equivalence point indication amount E in the titration tank 2 to the microcomputer 20.

FIG. 7 is a flowchart showing the processing of the titration subroutine in this embodiment. Other processing by the microcomputer 20 is the same as in the case of scouring.

In step 31, a pulse signal P1 is outputted to the metering pulse pump 31, and the processing liquid in the processing tank 1 is sampled into the titration tank 2 at a constant volume v1 per unit time. In step 32, the equivalent point instruction amount E is input from the ORP sensor 90, and in step 33, the deviation ε1 (=EV) is calculated. Here, V is the redox potential at the equivalence point.

In step 34, the set density S of the Nth fabric is
It is checked whether (N) is greater than or equal to a predetermined value R.
If it is smaller than this predetermined value, in step 35, the pulse signal P7 is set so that the deviation ε1 becomes 0.
Output P8 and perform titration. On the other hand, if it is equal to or higher than the set value R, in step 36, pulse signals P7, P8, and P9 are outputted so that the deviation ε1 becomes 0, and titration is performed. In this case, since both metering pulse pumps 84 and 85 operate, the dropping standard solution is rapidly supplied into the titration tank 2. In these steps 35 and 36, PID control is performed on the standard liquid amount y2 (=n2·v2) dropped into the titration tank 2. Finally, in step 37, n
After calculating the concentration n1 corresponding to the concentration of the processing liquid in the processing tank 1 by calculating 1=y2/y1, the process returns.

FIG. 8 shows a modification of the seam detection means 7, in which the fabric is sandwiched from both sides by a pair of rollers 95 for detecting thickness, and the area between the rollers where the thickness of the seam is thick is Seam b is detected by detecting an increase in distance.

[Effects of the Invention] As explained above, in the present invention, the processing liquid in the treatment tank is sampled into the titration tank by the sampling means, and the titration tank reaches the equivalence point by the titration tank control means. The amount of the standard solution dropped into the titration tank is controlled while referring to the output of the equivalence point sensor, and the concentration corresponding to the concentration of the processing solution in the processing tank is calculated from the sampling volume and the amount of the standard solution dropped using the calculation means. At the same time as the calculation, the treatment tank control means controls the input liquid, consisting of the undiluted or diluted treatment liquid, in the treatment tank so that this concentration becomes equal to the set concentration determined for each type of fabric output from the storage means. Since the supply amount to the fabric is controlled, it is possible to maintain a constant concentration of the treatment liquid for each type of fabric to be processed, such as scouring or bleaching, and the seam detection means can be used to detect continuous seams. Each time a seam of the fabric is detected, the storage means sequentially outputs the set temperature for the next fabric to be stored, so even if the type of fabric to be processed changes, the processing liquid concentration can be automatically changed accordingly. It is possible to process fabrics continuously. Furthermore, in addition to executing PID control in the titration tank control means and the treatment tank control means, when the treatment concentration is higher than a predetermined value, the amount of the standard solution dropped in the titration tank control means is controlled by the action of the changing means. When it is necessary to suddenly change the processing solution concentration when changing the fabric to be treated in order to increase at least one of the determining factors of the standard solution concentration that determines the standard solution concentration and the dropping volume of the standard solution per unit time. Even if the setting density changes quickly, the fabric can be processed in any order.

Therefore, according to the present invention, it is possible to provide an apparatus that can smoothly and continuously perform treatments such as scouring and bleaching on fabrics, and can evenly process a large number of fabrics with different treatment concentrations. can be performed quickly and automatically.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a fabric scouring, bleaching, etc. processing apparatus according to the present invention, FIG. 2 is a block diagram of a fabric scouring, bleaching, etc. processing apparatus according to an embodiment of the present invention, and FIG. is a flowchart showing the operation of the microcomputer shown in the previous figure, FIG. 4 is a flowchart showing the processing of the titration subroutine shown in the previous figure, and FIG.
FIG. 3 is a flowchart showing the processing of the processing liquid concentration adjustment subroutine; FIG. This figure is a flowchart showing the processing of the titration subroutine in the case of the embodiment shown in the previous figure, and FIG. 8 is a schematic diagram showing a modification of the seam detection means. Explanation of symbols, 1... Processing tank, 2... Titration tank, 3
... Sampling means, 4 ... Equivalence point sensor, 5
. . . Titration tank control means, 6 . ...Concentration corresponding to the processing solution concentration, n2...
...Standard solution concentration, S...Set concentration, T...Seam signal, v1...Collection volume, v2...Standard solution dropping volume, y1...Input liquid supply amount, y2...Dropped standard solution amount.

Claims (1)

[Scope of Claims] 1 (a) A treatment tank 1 that continuously performs treatments such as scouring and bleaching using a treatment liquid on fabrics of different types spliced together according to a certain treatment order; , (b) a sampling means 3 for sampling the treated liquid in the treatment tank 1 into the titration tank 2 at a constant volume v1 per unit time, and (c) an equivalent for outputting an equivalent point indication amount E in the titration tank 2. (d) a titration tank that receives the input of the equivalence point instruction amount E and performs PID control on the standard liquid amount y2 dropped into the titration tank so that the inside of the titration tank 2 reaches the equivalence point; (e) a calculation for calculating a concentration n1 corresponding to the concentration of the treatment liquid in the treatment tank 1 from the sampling volume v1 of the sampling means 3 and the standard dropping volume y2 of the titration tank control means 5; (f) a seam detection means 7 that outputs a seam signal T every time it detects a seam in the fabric carried into the processing tank 1; and (g) a seam detection means 7 determined for each type of fabric to be processed. (h) storage means 8 which stores the processing liquid concentration S in accordance with the processing order and sequentially outputs the stored contents each time the seam signal T is input; (h) output from the calculation means 6; The supply amount y of the input solution consisting of the undiluted solution or diluted solution of the processing solution into the processing tank 1 so that the concentration n1 becomes equal to the processing solution concentration S output from the storage means 8.
(i) processing liquid concentration S newly outputted from the storage means 8 each time the seam signal T is inputted;
is a predetermined value or more, the standard solution concentration n2 that determines the standard solution volume y2 dropped by the titration tank control means 5 and the volume v2 of the standard solution dropped per unit time.
A processing apparatus for scouring, bleaching, etc. of fabric, characterized in that it comprises a changing means 10 for increasing at least one determining factor.