JPS6034667A - Low bath ratio beam dyeing and other cloth treating method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to low bath ratio beam dyeing, scouring and other fabric treatment methods.

Conventional structure and problems Conventionally, beam staining and other liquid processing methods were
In the beam dyeing method, the 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 performed while the processing tank was filled with a processing solution and circulated. However, this method has disadvantages such as being extremely uneconomical because it requires a large amount of processing liquid, requires a large amount of dyes and auxiliary agents, and requires a large amount of steam energy. 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 fabrics when the fabric was wound or the air in the beam is pushed into the fabric as the processing liquid circulates. , many air spots may occur, resulting in uneven processing.
This method had drawbacks such as difficulty in uniform processing.

OBJECTS OF THE INVENTION The present invention overcomes the above-mentioned conventional drawbacks and enables beam dyeing, scouring and other treatments of fabrics to be treated at a low bath ratio, and dyes and auxiliary agents can also be applied in the center accordingly. Furthermore, it is an object of the present invention to provide a processing method that can realize uniform processing without any residual air or the like in the processed material wrapped around the outer periphery of the beam, and without uneven dyeing or air spots.

SUMMARY OF THE INVENTION In order to achieve the object L, the present invention provides a method for dyeing or other processing of a treated fabric wound around the outer periphery of a beam having a large number of fluid passage holes in a horizontal processing tank that can be closed off. After filling the treatment tank with a treatment liquid for immersing the treated fabric, the treatment liquid is circulated to deaerate the fabric, and then a part of the treatment liquid being circulated is collected or drained. ,
After lowering the liquid level in the processing tank to a predetermined position, dyes, auxiliary agents, etc. are added, and the processing is performed while circulating the processing liquid only from the inside to the outside of the fabric to be processed. This is a fabric processing method.

Therefore, in the method of the present invention, in particular, the treatment tank is filled with the treatment liquid, the fabric to be treated is completely immersed, and the process is forcibly degassed while circulating, so that there is no air remaining in the beam or in the fabric. Air spots can be prevented from occurring. In addition, the circulating treatment liquid can be collected by a pump into a collection tank or drained to the outside, and the liquid level in the treatment tank can be lowered to a predetermined position, making it possible to perform dyeing and other treatments with a low bath ratio. Small amounts of dyes and auxiliary agents are also required.

In addition, when processing, is there a place from the inside to the outside of the fabric to be processed? Since the R liquid is circulated, the processing liquid is sprayed radially and uniformly from inside the beam, allowing the beam to come into contact with the processing liquid evenly.

DESCRIPTION OF EMBODIMENTS The embodiment shown in the drawings will be described. In FIG. 1, reference numeral 1 denotes a horizontal treatment tank, from which the fabric 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 fabric 4 is wound around its outer periphery. 5.6 is a support axis of the beam 2, which is installed in the horizontal 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 designates 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 is 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 1°, and 14 is a drain valve. In addition, a bypass 15 was provided in the circulation path 7, and a valve 18 was installed. This is to adjust the circulation of the treatment liquid depending on the type, amount, etc. of the fabric to be treated. Reference numeral 17 indicates a heating valve for heating the heat exchanger 8, reference numeral 18 indicates a cooling water inlet valve for cooling, reference numeral 18 indicates a cooling water outlet valve, and reference numeral 20 indicates a drain valve.

In addition, a pressure regulating valve 21 is provided above the processing tank l.
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 the fabric to be treated is placed in a treatment tank, the treatment tank is sealed, ice is filled into the treatment tank 1 from the water supply valve 12, and the ice is circulated from the inside to the outside or from the outside to the inside using the pump 9. By operating in a full liquid state in this way, the air remaining in the fabric 4 to be treated tends to rise in specific gravity, which is lighter than water.
This action deaerates the air.

In addition, the degassing effect is further improved by repeating pressurization and depressurization, such as increasing the pressure in the processing tank to 4 Kg/cm' G and then reducing the pressure to 1 Kg/cm' G with the pressure regulating valve 21. . That is, when the inside of the treatment tank is pressurized at 4 Kg/crn'G, the volume of air in the fabric to be treated is 1 Kg/crn'
% of crn' G, making it easier to extract from the fabric to be treated, and when the pressure is reduced after pressurization, the small air suddenly becomes four times larger, causing an air splitting effect.
By repressurizing, the air volume becomes smaller again and becomes easier to escape.

The degassing effect is also improved by changing the direction of the treatment liquid flow from inside to outside or from outside to inside of the fabric to be treated.

Next, while circulating the liquid with the pump 9, the stove/stove valve I is
3 is opened, the liquid is gradually collected into the recovery tank IO, or when the drain valve 14 is opened to drain the liquid, the liquid level in the processing tank 1 falls 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 liquid level of the processing liquid to a predetermined level (less than half of the processing tank), the bath ratio, which was previously 12 to 20 l:, has become 6 to 10 l:, which is much lower than before. A lower bath ratio of more than half -L was achieved. 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 improves the uniform treatment effect.
to In addition, in the present invention, since the treatment is carried out in the treatment tank,
High temperature treatment (eg 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 fabric to be treated wound around a beam into a treatment tank, first supplies water, fills the treatment liquid in the treatment tank, and immerses it in the liquid. The treatment solution was circulated in the immersed state, which ensured degassing, solved the air bubble problem, and enabled uniform treatment. After degassing, lower the processing liquid in the processing tank to the specified position [
By doing so, a low bath ratio was achieved, and along with this, small amounts of dyes and auxiliary agents were required, and the amount of steam used in the heat exchanger was also reduced, allowing for significant streamlining.

In addition, when degassing, please use the pressure regulating valve of the processing tank. By repeating pressure and depressurization, the degassing effect is further improved.Also, when the beam is rotated, the uniformity of the process is further improved.

[Brief explanation of the drawing]

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. l...Treatment tank 2...Beam 3...Fluid passage hole 4...Treated fabric agent Patent attorney Oshima-ko Figure 2

Claims (3)

[Claims] (1) In a method of dyeing or otherwise processing a fabric wound around the outer periphery of a beam having a large number of fluid passage holes in a horizontal, closable processing tank, the fabric is placed inside the processing tank for immersion. 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 maintain the liquid level in the treatment tank at a predetermined level. A method of low bath ratio beam dyeing and other fabric processing, characterized in that after the dye, auxiliary agent, etc. are put into the fabric, the processing liquid is circulated only from the inside to the outside of the fabric to be processed. (2) A low bath ratio beam dyeing and other fabric processing method according to claim 1, wherein the inside of the processing tank is pressurized and depressurized repeatedly for degassing. (3) A low bath ratio beam dyeing and other fabric processing method according to claim 1, wherein the fabric to be treated is treated while being rotated once.