JPS648109B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an automatic color mixing method for dye liquors, and more specifically, a method for sequentially metering and mixing predetermined amounts of dye solutions of multiple colors and water. The present invention relates to an automatic color mixing method for a dye solution, which comprises mixing the dye liquid to a predetermined color using a method.

Prior Art and Technical Issues to be Solved Conventionally, the coloring of dye liquors has been carried out by manually measuring and mixing powder dyes of several colors based on a given color sample.

For this reason, although it requires considerable skill and time, the toning accuracy is not perfect and the reproducibility is insufficient.
Several corrections were required to adjust one color.

In recent years, computers, color matching devices, etc. have become widespread, and it has become possible to automatically perform color analysis on color samples, but subsequent color matching processes are still performed manually.

In addition, as an automatic color mixing method for dye liquor, a method is used in which raw materials such as dye stock solution, auxiliary agents, and water are individually metered and mixed in order through appropriate supply valves, thereby blending them into a predetermined color. is known (Japanese Unexamined Patent Publication No. 159342/1983).

Although this method is satisfactory in that it automatically prepares the dye liquor, the supply amount of each raw material can be controlled either continuously or intermittently by controlling the opening and closing of a single valve. Since it is performed only by supply, there is a problem with its accuracy. For this purpose, in this method, multiple dye stock solutions adjusted to two or more concentrations for each color are used, and by mixing these dye stock solutions, deviations in color tone due to errors in supply amount are minimized. It is suppressed to Therefore,
The mixing of a large number of colors is still unsatisfactory in that a very large number of stock dye solutions are required.

OBJECTIVE OF THE INVENTION The object of the present invention is to provide an automatic dye solution mixing method that improves the accuracy of color mixing and allows mixing multiple colors by using a minimum number of dye stock solutions. It is on offer.

Another object of the present invention is to provide an automatic dye solution toning method in which the speed of toning is significantly improved.

Structure of the Invention According to the present invention, each raw material solution such as a plurality of color dye solutions, water, and if necessary an auxiliary solution is supplied in sequence according to command signals from a computer control mechanism, and the supply amount of each raw material solution is controlled. In an automatic color mixing method for dye liquor, which involves measuring, converting the measured values into electrical signals and feeding back, and controlling the supply amount of each raw material solution, the supply of each raw material solution is controlled via a large-volume supply solenoid valve. This is carried out in three stages: continuous supply via a solenoid valve for small quantity supply, and intermittent supply, and when these raw material liquids are not being supplied, it is recommended to circulate raw material liquids other than water. A method of characterizing is provided.

Preferred Embodiments of the Invention The present invention will be described in detail below based on specific examples shown in the accompanying drawings.

In FIG. 1 showing one embodiment of an apparatus for suitably carrying out the method of the present invention, in the upper part of the apparatus are tanks 1-1, 1-2, . . . for storing a plurality of dye solutions.
1-N, auxiliary solution tank 1-S, water tank 1
- H etc. are installed, and each tank except for water is equipped with an agitator 2 to prevent sedimentation. Furthermore, if necessary, each tank can be equipped with a heater and an automatic temperature control device to adjust the liquid temperature.

From the bottom of each tank are pipes 3-1, 3-
2-3-N, 3-S, 3-H are connected, and pressure pumps 4-1, 4-2 are installed in the middle of each piping except for water.
~4-N and 4-S are provided. Piping 3-1
~The end of 3-H is branched into two pipes, one of which is used for mass supply solenoid valves 5-1, 5-2 to 5-N, and 5-S, 5-H, and the other is for small quantity supply. Supply solenoid valves 6-1, 6-2 to 6-N, and 6-S, 6-H
connected to.

Approximately 15 to 40 supply piping systems including these solenoid valves are required for toning for textile printing, so the solenoid valves and piping are arranged in a ring, and the electronic balance 7 and A container 9 is placed on top of it via a roller conveyor 8 for a balance. Although not shown, the two solenoid valves 5-1 and 6-1 to 5-H and 6-H for each system are integrally attached to a swing arm operated by an air cylinder or the like, Based on the signals from the control device described later, the necessary amount is transferred from the annular position for each system.
It is called to the center upper position of the container 9 and supplies a solution, etc.

Control of this supply amount is important and requires high precision for the purpose of color matching.

An important feature of the present invention is that two types of solenoid valves are used for supplying each raw material liquid: a solenoid valve for mass supply and a solenoid valve for small quantity supply, and the solenoid valve for mass supply can be used for continuous or intermittent supply. The purpose is to accurately supply each raw material liquid to each set amount by controlling multiple stages of continuous or intermittent supply using a small amount supply solenoid valve.

That is, since the raw material liquid is supplied in large quantities and in small quantities using dedicated electromagnetic valves, it is possible to quickly supply up to a set amount, and the supply time can be significantly shortened. Furthermore, since the minute amount supply is performed in multiple stages of continuous supply and intermittent supply using the solenoid valve for minute amount supply, the accuracy is also significantly improved. Therefore, it is sufficient to use a raw material liquid of one concentration for one color, and it is possible to minimize the number of raw material liquids. It will be understood that this has a very important meaning when a very large number of color systems, about 15 to 40 systems, are used, for example in the case of toning for textile printing.

A preferred example of this step of supplying the raw material liquid is shown in FIG. According to this Noh, mass supply solenoid valve 5-N
Large volume continuous supply Q ₁ , small quantity supply solenoid valve 6 -
The supply up to the final set weight Q is carried out in three stages: a minute continuous supply _Q2 of N and a minute intermittent supply _Q3 . Here, intermittent supply means intermittent supply, and especially in the case of _Q3 , it is performed like drip supply to improve accuracy.

In order to increase the accuracy of the supply amount and shorten the supply time, it is important to determine the quantities of Q ₁ , Q ₂ , and Q ₃ in Figure 2, but in the experimental results, Q ₁ = Q- (5 to 50 g) Q ₂ = Q- (0.1 to 2 g) Q ₃ = balance = 0.1 to 2 g is appropriate. In this way, the remaining amount is controlled, and this remaining amount can be freely set by the control device depending on the magnitude of the supply amount. Furthermore, if there is not a large difference in the supply amount, each of Q ₁ , Q ₂ , and Q ₃ may be controlled as a ratio to Q.

In addition, the supply amount per unit time of Q ₁ and Q ₂ is determined by the discharge amount of the pressure pump and the orifice of two types of solenoid valves depending on the scale of the entire device, and the drip supply of Q ₃ is 0.005 g to 0.1 It can be adjusted by the control device within the range of g/1 shot.

Further, the large quantity supply by the large quantity supply electromagnetic valve 5-N may be performed as an intermittent supply depending on the supply amount, or it is also possible to combine continuous supply and intermittent supply.

Control of the supply amount by the electromagnetic valve described above is performed as follows by the computer control mechanism 300 linked to the supply mechanism 100 including these and the weight measurement mechanism 200 consisting of the electronic balance 7.

Necessary toning data is input into the computer device 12 using an input device 10 such as a keyboard.
Incidentally, if the computer color matching device 11 is available, it is also possible to input the information directly from there. The computer device 12 processes the input data and outputs it as a control signal to the control device 13, and also transmits the input data to the color display device 1.
4 for display and confirmation, and the actual supply and measurement results can be recorded on the printer 15.

In accordance with instructions from the computer device 12, the control device 13 controls the large-volume solenoid valves 5-1 and 5-1 for each system.
5-2 to 5-N, 5-S, 5-H and small quantity solenoid valves 6-1, 6-2 to 6-N, 6-S, 6-H are controlled to open and close through wiring 16 and 17, respectively. Let's do it. Although not shown, it also controls the air cylinders, etc., which call the electromagnetic valves for each system arranged in a ring to the container directly above the center of the ring, and store it therein.

According to the opening and closing of each electromagnetic valve, each dye solution, auxiliary agent solution, and water are poured into a container 9, and their weight is measured by an electronic balance 7. Since the electronic balance 7 has a tare removal function, the weight of the roller conveyor 8 for the balance and the container 7 is removed immediately after being placed, and weighing from zero weight is possible. At the same time as the supply starts, the weighed value is converted into an electrical signal in accordance with the increase, and is fed back every moment to the computer device 12 through the wiring 18. When the set remaining amount is reached, signals for supply switching points P ₁ , P ₂ and supply completion point P ₃ are sent to each electromagnetic valve through the control device 13 . In this way, the supply of dye solution, etc. is controlled in three stages using two types of solenoid valves.
It is accurate, rapid, and automatic, resulting in improved accuracy, time savings, and labor savings compared to traditional manual methods. In addition, the weighing accuracy of electronic balances depends on the size of the weighing amount, but it has an accuracy of 0.01g to 1.0g, and it is not a powder dye like the conventional one, but a solubility
Since it is a solution with a concentration of 10% to 50%, it is possible to significantly improve accuracy compared to manual work with powdered dye.

In the present invention, the dye solution etc. are constantly pumped,
By circulating, it becomes possible to prevent precipitation and coagulation of each raw material. Although precipitation in the tank can be prevented to some extent by the agitator 2 described above, this can be prevented more completely and in addition, precipitation and coagulation in the piping system etc. can be prevented. Precipitation or coagulation of each raw material naturally leads to changes in dye concentration, deterioration, or malfunction of equipment, making it impossible to ensure correct toning.

Therefore, according to the present invention, it is preferable that pressure pumps 4-1, 4-2 to 4-N, and 4-S are provided for each supply system to force-feed each solution at a constant pressure. At this time, when the solenoid valve opens and the solution is supplied, the solution is supplied at a constant pressure regardless of the level of the solution in the tank, and at the same time as the solenoid valve closes, the solution is supplied from circulation piping 20-1, 20-2 to 20-N and 2
Each solution is returned to its respective tank through the 0-S and further circulated within the piping by a pressure pump. This prevents precipitation and coagulation, and also allows accurate feeding without fluctuations under a constant pressure. When the supply of a predetermined amount of each solution is completed, the container 9 is transferred to the connected conveyor 21, and is automatically conveyed to the next process of supplying the base glue and mixing.

The present invention is not limited to toning for textile printing, but can be widely applied to toning of plain dyeing, mixing of a plurality of chemicals, or toning of ink for printing.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing one embodiment of an apparatus for suitably implementing the method of the present invention, and FIG. 2 is a diagram showing the steps of supplying raw material liquid by a solenoid valve. 1-1, 1-2 to 1-N are dye solution tanks, 2
is a stirrer, 3-1, 3-2 to 3-N, 3-S, 3
-H is piping, 4-1, 4-2 to 4-N, 4-S is pressure pump, 5-1, 5-2 to 5-N, 5-S,
5-H is a solenoid valve for mass supply, 6-1, 6-2 ~ 6
-N, 6-S, 6-H are solenoid valves for small quantity supply, 7 is an electronic balance, 8 is a conveyor for the balance, 9 is a container, 1
0 is an input device, 11 is a computer color matching device, 12 is a computer device, 13
is a control device, 14 is a color display device, 1
5 is the printer, 16, 17, 18 are the wiring, 20
-1,20-2 to 20-N,20-S are circulation pipes, 21 is a conveyor, 100 is a supply mechanism,
200 is a weight measurement mechanism, and 300 is a computer control mechanism.

Claims (1)

[Scope of Claims] 1. Each raw material solution such as a plurality of color dye solutions, water, and if necessary an auxiliary solution is supplied in sequence according to a command signal from a computer control mechanism, and the supply amount of each raw material solution is measured. In an automatic dye liquor toning method that involves converting measured values into electrical signals and feeding them back to control the supply amount of each raw material solution, the supply of each raw material solution is controlled via a large-volume supply solenoid valve. It is characterized by three stages: continuous supply through a solenoid valve for continuous supply and small amount supply, and intermittent supply, and when these raw material liquids are not being supplied, raw material liquids other than water are circulated. How to do it.