JPS6039786B2 - Low bath ratio beam dyeing and other fabric processing methods - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to low beam dyeing, scouring and other fabric reprocessing methods.

Conventional structure and problems Conventionally, beam staining and other liquid processing methods were
In a beam dyeing method in which a fabric to be treated is wrapped around the outer periphery of a hollow beam having a large number of liquid passage holes, and the treatment liquid is circulated from inside the beam through the liquid passage holes and through the fabric. The dyeing process was carried out in a state where the processing tank was filled with a processing solution and circulated.

However, this method has the disadvantage that it requires a large amount of treatment liquid, requires a large amount of dyes, auxiliaries, etc., and also requires a large amount of steam energy, making it extremely sterile. Furthermore, in the same beam dyeing method, there is a technique disclosed in Japanese Utility Model Publication No. 19294/1983 as a technique for lowering the liquid level. However, with this technology, processing is performed with the liquid level simply lowered, so the air that existed between the cloth peaks and the air in the beam when the cloth was wound is transferred into the cloth as the processing liquid is circulated. This has the disadvantage that many air spots are generated, resulting in uneven processing, making uniform processing difficult. OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and enables conventional beam dyeing of processed fabrics at a low bath ratio.
Scouring and other treatments can be carried out, and a correspondingly small amount of dyes and auxiliary agents are required.Furthermore, there is no residual air in the treated fabric wrapped around the outer periphery of the beam, and uneven dyeing and air spots can be avoided. The purpose of this invention is to provide a processing method that can realize uniform processing.

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a method for dyeing or other processing of a processed cloth wound around the outer periphery of a beam having a large number of five fluid passage holes in a sealable horizontal processing tank. After filling the processing tank with a processing solution to immerse the treated cloth field, the treatment solution is circulated to deaerate the inside of the cloth field, and then a part of the treatment liquid being circulated is collected or drained. do,
Low bath ratio beam dyeing in which dyes, auxiliary agents, etc. are added after the liquid level in the processing tank is lowered to a predetermined position, and the processing liquid is circulated only from the inside to the outside of the fabric to be processed. Other fabric processing methods.

Therefore, in the method of the present invention, in particular, the treatment tank is filled with the treatment liquid to completely submerge the cloth to be treated, and the air is forcibly degassed while being circulated. There are no air spots, and the occurrence of air spots can be prevented.

In addition, the circulating treatment liquid can be collected by a pump into a collection tank or drained to the outside, lowering the liquid level in the treatment tank to a predetermined position, making it possible to perform dyeing and other treatments at low-quality dyes. Only a small amount of additives and auxiliaries are required. Furthermore, during processing, the processing liquid was circulated only from the inside to the outside of the fabric to be treated, so that the processing liquid was evenly sprayed radially from inside the beam, allowing it to come in contact with the processing liquid evenly. .

Description of examples The embodiment shown in the drawings will be described.

In FIG. 1, reference numeral 1 denotes a horizontal treatment tank, from which the material to be treated can be taken in and out through a lid 1'. Reference numeral 2 denotes a beam, which has a large number of fluid passage holes 3 on its circumferential surface, and a treated cloth 4 is wrapped around its outer periphery.

5 and 6 are support shafts of the beam 2, which are installed in the machine axis direction within the processing tank.

Although not shown, the beam 2 may be configured to rotate by being connected to a drive source such as a motor. Reference numeral 7 denotes a treatment liquid circulation path, one end of which is connected to communicate with the beam around which the fabric to be treated is wound through the support shaft of the treatment tank, and the other end connected to the bottom of the treatment tank.

A heat exchanger 8 and a pump 9 are connected via this processing liquid circulation path. A recovery tank 10 is connected to the discharge side circulation path 7 of the pump 9. 11 is a tank for adding dyes and auxiliaries.

In addition, 12 is a water supply valve, 13 is a stop valve to the recovery tank 10,
14 is a scale valve. In addition, a bypass 15 was provided in the circulation path 7, and a valve 16 was installed. This is to adjust the circulation amount of the treatment liquid depending on the type, amount, etc. of the cloth to be treated. 17 is a steam inlet valve for heating the heat exchanger 8, 18 is a cooling water inlet valve for cooling, 19 is a cooling water outlet valve, and 20 is a drain valve.

Additionally, a pressure regulating valve 21 is provided above the processing tank 1.
It is used to deaerate the inside of the processing tank, and also to constantly adjust the pressure inside the processing tank. A beam wrapped with a treatment cloth is installed in the treatment tank, the treatment tank is sealed, water is filled into the treatment tank 1 from the water supply valve 12, and the pump 9 circulates it from the inside to the outside or from the outside to the inside. .

By operating in such a full liquid state, the air remaining in the fabric to be treated 4 tends to have a higher specific gravity than water, and is degassed by this action. In addition, the pressure inside the processing tank is
After increasing the pressure to 4kg/G, the pressure regulating valve 21 increases the pressure to lk9.
The degassing effect is further improved by repeating pressurization and depressurization, such as reducing the pressure to G.

In other words, when the inside of the treatment tank is pressurized to 4k9/G, the volume of air in the cloth to be treated will be 1'4 to 4k9/G.
The air becomes smaller and becomes easier to escape from the material to be treated, and when the pressure is reduced after pressurization, the air that had previously been small suddenly becomes four times larger, causing an air splitting effect, and re-pressurization causes the air volume to become smaller again. It will come off easily. The deaeration effect is also improved by changing the flow direction of the treatment liquid from the inside to the outside or from the outside to the inside for the treated fabric. Next, when the stop valve 13 is opened while circulating the liquid with the pump 9, the recovery tank 1 gradually closes.
0, or when the 9E liquid valve 14 is opened and the liquid is drained, the liquid level in the processing tank 1 drops to a predetermined position.

In this state, the stop valve 13 is closed and the process is carried out by circulating at a predetermined temperature. By reducing the level of the processing liquid to a predetermined level (less than half of the processing tank), the yield ratio, which was previously 1:12 to 20, has been reduced to 1:6.
~10, which is more than half the vulgar ratio compared to the conventional method. In addition, since the processing liquid is ejected from within the beam through the fluid passage hole 3, there are no air spots and uniform processing is possible. Furthermore, rotating the beam further improves the uniform treatment effect. In addition, in the present invention, since the treatment is carried out in a treatment tank, high temperature treatment (for example, 130° C.) is also possible.
The dye and auxiliary agent are supplied from the additional tank 11 to the suction side of the pump 9 of the circulation path 7. Note that the liquid recovered in the recovery tank can be reused as it is for the next process. Effects of the Invention As described above, the present invention loads the cloth to be treated wrapped around a beam into a treatment tank, first supplies water, and then fills the treatment tank with the treatment liquid and soaks it. The processing liquid was circulated while it was immersed in the container, which ensured degassing, eliminated air spots, and enabled uniform processing.

After degassing, lowering the processing liquid in the processing tank to a predetermined position achieves a low-grade ratio, which requires less dyes and auxiliary agents, and reduces the amount of steam used in the heat exchanger. Significant rationalization has become possible. Note that the degassing effect can be further improved by repeating pressurization and depressurization using the pressure regulating valve of the processing tank during degassing. Further, when the beam is rotated, the uniformity of processing is further improved.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the entire apparatus for carrying out the method of the present invention;
The figure is a longitudinal sectional view of the same treatment tank. 1... treatment tank, 2... beam, 3...
...Fluid passage hole, 4...Processed fabric. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. A method for dyeing or otherwise treating a fabric to be treated, which is wound around the outer periphery of a beam having a large number of fluid passage holes, in a sealable horizontal treatment tank, comprising: a treatment tank for immersing the fabric to be treated; After filling the tank with the treatment liquid, the fabric is deaerated while circulating the treatment liquid, and then a part of the treatment liquid being circulated is collected or drained to lower the liquid level in the treatment tank. A low bath ratio beam dyeing and other fabric processing method, characterized in that after being lowered to a predetermined position, a dye, an auxiliary agent, etc. are introduced, and the processing is carried out while circulating the processing liquid only from the inside to the outside of the fabric to be processed. 2. The low bath ratio beam dyeing and other fabric processing methods according to claim 1, wherein the inside of the processing tank is repeatedly pressurized and depressurized for degassing. 3. A low bath ratio beam dyeing and other fabric processing method according to claim 1, wherein the fabric to be processed is processed while being rotated.