JPS6114272B2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a method and apparatus for liquid flow treatment of fabric, and more specifically, a method for treating cloth to be treated with an endless rope in a liquid stream at an extremely low bath ratio. and devices.

BACKGROUND ART A so-called liquid flow treatment method and apparatus are well known, in which a cloth to be treated is set up in an endless rope shape and both the cloth to be treated and a treatment liquid are circulated for liquid flow treatment. In the liquid flow treatment of fiber fabrics using such treatment equipment, various proposals have been made recently for the purpose of efficient treatment (for example, Japanese Patent Publication No. 1983- No. 19785, JP-A-56-154562, etc.). According to these conventional low bath ratio treatment methods and treatment devices, it has become possible to process at a bath ratio as low as 1:7 to 10. It is desired to realize the processing in

However, when attempting to perform treatment at an extremely low bath ratio of less than 1:7 using a conventionally known liquid flow treatment method or apparatus, the cloth to be treated is moved in a suspended state in the treatment liquid, resulting in extremely low bath ratios. When the bath ratio is low, the filtering effect of the cloth obstructs the circulation of the processing liquid to the pump, causing the problem that the pump does not function properly. In other words, air and bubbles were mixed into the pump suction section, causing surging, which resulted in intermittent supply of processing liquid to the processing liquid injection section (jet nozzle), and the cloth to be processed could not be moved smoothly. This tendency is particularly strong in dense fabrics, and in order to maintain stable pump performance, it has been difficult to achieve a sufficiently low bath ratio using conventional methods.

In addition, although it has recently become common sense to use rapid dyeing to improve productivity, the longer the input length of the fabric to be processed, the greater the number of times the fabric comes into contact with the fabric. It is essential to increase the speed of transport of the fabric to be treated. However, when the bath ratio is large, overtaking and entanglement of the fabrics occur, resulting in insufficient tidying of the fabrics, creating the dilemma of having to reduce the fabric transfer speed. be. In other words, how to strike a balance between stable movement of the fabric and circulation of the treatment liquid has become a serious technical issue.

Furthermore, some of the conventional liquid flow processing apparatuses require an operating table for operation because the loading and unloading ports for the cloth to be treated are located at a high position.

OBJECT OF THE INVENTION The main object of the present invention is to provide a liquid flow treatment method and apparatus for fabrics that can perform highly efficient treatment at extremely low bath ratios, which has not been possible with conventional methods and apparatuses. It is about providing.

Structure of the Invention According to the present invention, there is provided a method for carrying out liquid flow treatment by setting a cloth to be treated in an endless rope shape and circulating both the cloth to be treated and a treatment liquid. The treated fabric is passed through a submerged treatment area formed in a small-diameter fabric transfer pipe at high speed together with the treatment liquid ejected from the treatment liquid injection part, and the air formed in the fabric retention tank is removed from the submerged treatment area. The fabric is transferred to the inlet of the processing area, and while being separated from the processing liquid at the rear of the air treatment area, the inner wall surface of the fabric retention tank is moved from the inlet of the air treatment area toward the center. It is slid down by its own weight, and then slowly transferred from the center to the front part of the aerial processing area in a state separated from the processing liquid, and is installed in a header part connected to the front part of the aerial processing area. The cloth is then pulled up by a pulling reel, and then returned to the submerged treatment area in the cloth transfer pipe via the treatment liquid injection section for circulation treatment.

Further, according to the present invention, there is provided an apparatus for carrying out liquid flow treatment by setting the cloth to be treated in an endless rope shape and circulating both the cloth to be treated and the treatment liquid. a rear part provided with an open cloth inlet and arranged so as to be inclined so that the cloth to be treated slides down the inner wall surface from the cloth inlet toward the center bottom; and a front part extending obliquely upward from the center bottom. a can body-shaped fabric retention tank, comprising a pull-up reel for pulling up the fabric to be treated from the fabric retention tank, and a loading/unloading port for the fabric to be treated, and a header connected to the front part of the fabric retention tank; a processing liquid injection part for generating a processing liquid flow, which is arranged directly below the header part; and a processing liquid injection part which is arranged below the fabric retention tank and extends from the processing liquid injection part to the rear of the fabric retention tank. a fabric transfer pipe connected to a fabric inlet opening of the unit for transferring the treated fabric in a substantially straight line along with the treatment liquid flow generated by the treatment liquid injection unit;
The rear part of the fabric retention tank has an inclination of 30° to 90° with respect to the horizontal plane, and the fabric retention tank is configured as a double bottom or double cylinder partitioned over almost the entire length by a punching plate. It is characterized by the presence of

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a side sectional view schematically showing a liquid flow processing apparatus according to the present invention. A large-diameter can body-shaped fabric retention tank 1 is composed of a rear part 2, a central part 3, and a front part 4. The rear part 2 has a cloth inlet 5 opened at its upper end, and the endless rope-shaped treated cloth F introduced into the cloth retention tank 1 from this cloth inlet slides down the inner wall surface of the rear part 2. It is tilted like this. The center portion 3 of the fabric retention tank has a substantially horizontal bottom wall surface, and a cone-shaped front portion 4 extends obliquely upward from the center portion. Note that, depending on the case, the central part 3 may not have a substantially horizontal bottom wall surface, and the central part 3 may be configured such that the rear part 2 directly becomes the front part 4. It's okay.

A header section 6 equipped with a pulling reel 7 for pulling up the fabric to be treated from the fabric retention tank and a loading/unloading port 8 for the fabric to be treated is connected to the front section 4 of the fabric retention tank. A processing liquid spraying section 9 for generating a processing liquid flow is disposed at. A small-diameter fabric transfer pipe 10 is disposed below the fabric retention tank 1 and has one end connected to the treatment liquid injection part 9 and the other end communicated with the fabric inlet 5 opening of the rear part 2 of the fabric retention tank 1. ing.

The cloth F to be treated is pulled up from the front part 4 of the cloth retention tank 1 by a pull-up reel 7 provided in the header part 6, and sent to the treatment liquid injection part 9. The treated cloth F is now in contact with the treatment liquid flow,
The fabric is transferred in a substantially straight line at high speed through the fabric transfer pipe 10, guided into the fabric retention tank 1 through the fabric inlet 5 provided at the upper end of the fabric retention tank rear part 2, and then transferred to the fabric retention tank rear part. It slides down the sloping inner wall surface of the bottom part 2 and reaches the central part 3, and while staying in the central part 3 in an irregular zigzag shape, the front part 4 slowly slides down.
will be transported towards. On the other hand, the treatment liquid is ejected from the treatment liquid injection part 9 to form a high-speed liquid flow, passes through the cloth transfer pipe 10 together with the cloth to be treated F, and passes through the cloth inlet 5 of the rear part 2 of the cloth retention tank to the cloth. It is ejected into the retention tank 1. The processing liquid then flows down toward the central part 3 along the pipe wall of the rear part 2, forms a liquid layer at the bottom of the central part 3, and passes through a processing liquid discharge port provided below the central part 3. 11 to the outside of the tank.
The processing liquid discharged from the discharge port 11 passes through the processing liquid circulation pipe 12, the pump 13, the heat exchanger 14, and the flow control valve 15, and is returned to the processing liquid injection section 9 again. In addition, in FIG. 1, 16 is a water supply valve, and 17 is a drain valve.

In the liquid flow processing apparatus of the present invention as described above,
The rear part 2 of the fabric retention tank 1 is at an angle of 30° to 90°, preferably
It has an inclination angle (indicated by α in FIG. 1) of 40° to 60°. The fabric to be treated is introduced into the tank from the fabric inlet 5.
It slides down the inclined wall surface due to its own weight and smoothly reaches the central portion 3 having a substantially horizontal bottom surface. In this way, the fabric to be treated is transported at a relatively high transport speed in this rear section, and
At the same time, the fabrics to be treated that have already accumulated in the center part 3 are pushed forward strongly, making it possible to transfer the fabrics extremely smoothly and quickly throughout the entire fabric retention tank. It becomes possible. Further, this slope of the rear portion 2 has the effect of concentrating the processing liquid layer formed at the bottom of the central portion 3 in a narrow range. This angle of inclination α is
If the angle is smaller than 30°, the fabric to be treated will not slide down smoothly, and the fabric to be treated that has accumulated in the center portion 3 will not be pushed forward but may become jammed at the rear, causing the fabric to overtake or become entangled. This makes uniform processing and smooth operation difficult.

In the process of completing the present invention, the relationship between the type of surface finish and sliding friction on the flat surface of plates made of various materials was studied in detail. They found that if the angle of inclination is 30° or more, the falling force due to the weight of the fabric to be treated exceeds the resistance force due to friction with the plate, and the fabric to be treated will fall naturally. .

Further, as described above, the processing liquid in the liquid layer formed at the bottom of the central portion 3 of the fabric retention tank is discharged from the processing liquid outlet 11 to the outside of the tank and circulated.

In the present invention, the fabric retention tank 1 is further formed into a double-bottomed or double-cylindrical shape over almost its entire length so that the area for retaining and transferring the fabric to be treated and the area for circulating the treatment liquid are partitioned by a punching plate. . for example,
In the embodiment shown in FIG. 1, a punching plate 18 is disposed on almost the entire bottom of the cloth retention tank 1 from the rear part 2 to the front part 4.
This partitions the bottom of the fabric retention tank 1 over almost its entire length to form a double bottom. In this case, the fabric to be treated, which has been transferred together with the treatment liquid through the fabric transfer pipe 10, enters the cloth retention tank 1 through the cloth inlet 5, where it is separated from the treatment liquid. Then, the processing liquid falls onto the bottom wall of the fabric retention tank rear section 2 through the hole in the punching plate and flows down along this wall, while the fabric to be processed flows on the punching plate 18 separately from the processing liquid. It will slide down towards the central part 3. Furthermore, since the treatment liquid is held in the central portion 3 such that the liquid level is below the punching plate 18, the treatment liquid is kept separated from the fabric to be treated in the central portion and further in the front portion 4. During this period, the excess treatment liquid is separated from the cloth to be treated, and the punching plate 1
8, the punching plate 18
It will be merged with the processing liquid layer below.

Therefore, in the apparatus of the present invention having such a double bottom or double cylindrical structure, the circulation of the treatment liquid is not obstructed by the cloth to be treated, and even at a low bath ratio, there is no possibility of air or bubbles being mixed in. This eliminates surging and allows for smooth processing.
In addition, the fabric to be treated is treated in a complete gas phase in this fabric retention tank, so its own weight is lighter compared to a state containing a large amount of liquid, and the fabric is retained in the fabric. Since the excess processing liquid that was present also falls off during the transfer, the transfer of the fabric within the fabric retention tank becomes even smoother. Moreover, the tension of pulling up the fabric to be treated by the pulling reel in the front part is reduced, making it possible to increase the fabric speed, increasing the number of times the fabric comes into contact with the fabric, and making extremely efficient rabbit dyeing possible. Furthermore, even when the cloth to be treated is taken out through the cloth loading/unloading port 8 after the treatment, the excess liquid has already fallen off, so there is less liquid scattering, which improves the working environment. , productivity is improved because the cloth drawing speed is also increased.

Furthermore, in the present invention, it is preferable that the height at which the processing liquid is pushed up is 500 mm or more with respect to the processing liquid injection section. Here, the pushing-up height of the treatment liquid is defined as the height of the treatment liquid in the flow path starting from the treatment liquid injection part 9, passing through the fabric transfer pipe 10, and then being released into the fabric retention tank 1. This refers to the height (indicated by H in FIG. 1) up to the cloth inlet 5 of the rear section 2 of the cloth retention tank located above this as a reference.

In conventional horizontal liquid flow processing equipment, the processing liquid spraying section is provided at a relatively low position, so there is no particular disadvantage in terms of workability, but the processing liquid based on the processing liquid spraying section as described above The push-up height was negative or small. That is, the cloth inlet of the cloth retention tank was located at a lower position than the treatment liquid injection section, or even if it was higher than this, the height at which the treatment liquid was pushed up was no more than 300 mm. Therefore, when the height of the process liquid being pushed up is low, the drop of the fabric transferred from the inlet of the fabric retention tank to the center of the fabric retention tank becomes small, so that the push-out force of the fabric due to the falling force of the fabric's own weight decreases. This has the drawback that the cloth cannot be transferred quickly in the cloth retention tank, making it difficult to obtain a uniformly processed material.For this reason, in conventional horizontal equipment, the cloth cannot be transferred by liquid flow even in the cloth retention tank. Therefore, it was not possible to reduce the bath ratio to an extremely low level.

On the other hand, in conventional liquid flow processing equipment having a substantially U-shape or J-shape, although the height of the processing liquid pushed up as described above is small, at most 300 mm or less, The head of the fabric being transferred to the section is relatively large.
However, in such an apparatus, the treatment liquid spraying section must be located at a high position due to the design, and accordingly, the cloth pulling reel and cloth loading/unloading port must also be located at a high position.
As a result, there is a problem in that the pulling tension of the fabric by the fabric pulling reel becomes strong and the fabric is stretched in the length direction.Additionally, an operation table is required when loading and unloading the fabric, which causes problems in terms of workability. It was hot.

Therefore, in a preferred embodiment of the present invention as described above, the treatment liquid spraying section is provided at a lower position, and the height of the treatment liquid is raised, that is, from the treatment liquid spraying section to the cloth entrance at the rear part of the cloth retention tank. height up to
By setting the length to 500 mm or more, the head of the fabric transferred from the inlet of the fabric retention tank to the center of the fabric retention tank is large, and smoother transfer and processing of the fabric is possible even under extremely low bath ratios.

In the present invention, since the treatment liquid spraying section is provided at a low position, the cloth pulling reel and cloth loading/unloading port are also provided at a low position accordingly. Therefore, when the fabric in the fabric retention tank is pulled up by the fabric pulling reel, the tension applied to the fabric is reduced, which reduces the vertical elongation of the fabric and rope wrinkles compared to the conventional method, and allows for the production of high-quality processed materials. Obtainable. In addition, the distance the fabric is pulled up becomes smaller, the weight of the fabric and the attached water is reduced, and the speed of the fabric is also improved accordingly. Furthermore, cloth loading/
Since the take-out port is located at a low position, the operator can easily load and unload fabric without the need for an operating table, resulting in improvements in terms of both cost and operability.

Further, in a preferred embodiment of the present invention, the height of the treatment liquid pushed up is 500 mm or more, so that the head of the fabric transferred from the inlet of the fabric retention tank to the center of the fabric retention tank can be increased. ,
The fall of the fabric due to its own weight becomes smooth, speeding up the fabric transfer, and the falling force of the fabric's own weight pushes the fabric accumulated in the center of the fabric retention tank forward, resulting in smooth transfer of the fabric within the retention tank. This allows for extremely low bath ratios, such as bath ratios of 1:3 to
5, it became possible to process the same.

In the liquid flow treatment apparatus of the present invention having the above configuration, it is possible to increase the transfer or circulation of both the cloth to be treated and the treatment liquid, and to perform the process smoothly and quickly. However, there is almost no problem in level dyeing properties or operability, and therefore processing can be performed at surprisingly low bath ratios of 1:3 to 5.

The liquid flow treatment device according to the present invention may further include a communication pipe 19 for communicating the internal space of the header section 6 and the internal space of the rear section 2 of the cloth retention tank. By installing such a communication pipe, the fabric retention tank 1
It is possible to eliminate the pressure difference that may occur due to the accumulated cloth to be treated between the rear portion and the front portion of the cloth, and the transfer of the cloth to be treated can be stabilized.

Effects of the Invention According to the liquid flow treatment apparatus of the present invention, treatment can be performed at an extremely low bath ratio of 1:3 to 5, and therefore the amount of dyes and auxiliary agents used can be significantly reduced. In addition, steam in the heating and cooling process,
The amount of water and the like used can be reduced significantly, and treatment costs can therefore be greatly reduced.

This extremely low bath ratio is largely due to the realization of smooth and speedy cloth transfer, which is far superior to conventional devices, as explained in detail above. In other words, the cloth transfer speed has been reduced by 30% to 50% compared to conventional methods.
By making it larger, the number of relative contacts between the treatment liquid and the treated fabric can be increased by 30% to 50%.
Accordingly, even if the bath ratio is extremely small to 1:3 to 5, non-uniform treatment can be prevented.

Furthermore, it is possible to perform speedy and smooth processing even under extremely low bath ratios, and the cloth to be treated can be sufficiently immersed in the treatment liquid in the cloth transfer pipe.
The uniformity of processing has improved, and there are no longer any restrictions on the types of products that can be processed. Furthermore, the extremely low bath ratio allows the amount of liquid to be reduced, which dramatically increases the number of exchanges of the processing liquid, improving the uniformity of the temperature and concentration of the processing liquid, and therefore improving the uniformity of the processing. As well as being able to
Furthermore, processing time is shortened and extremely efficient processing can be achieved. For example, in the conventional apparatus, the processing liquid can be exchanged 1 to 2 times/minute at most, but in the apparatus of the present invention, the processing liquid can be exchanged 3 to 5 times/minute.

Furthermore, in view of the structure of the apparatus of the present invention, the header section can be placed at a low position, and therefore work for loading and unloading the fabric to be processed can be performed at a low position, so that the operation table etc. can be placed at a low position. This is not necessary and provides good workability in this aspect as well.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view schematically showing an embodiment of the liquid flow processing apparatus of the present invention. 1...Fabric retention tank, 2...Back part, 3...Central part, 4...
Front part, 5... Cloth inlet, 6... Header part, 7... Pulling reel, 9... Processing liquid injection part, 10... Fabric transfer pipe,
DESCRIPTION OF SYMBOLS 11... Processing liquid discharge port, 13... Pump, 18... Punching plate, 19... Communication pipe.

Claims (1)

[Scope of Claims] 1. In a method of carrying out liquid flow treatment by setting a cloth to be treated in an endless rope shape and circulating both the cloth and a treatment liquid, the cloth to be treated is sprayed from a treatment liquid spraying part. The treatment liquid flow passes through a submerged treatment zone formed in a small-diameter cloth transfer pipe at high speed, and is transferred from the submerged treatment zone to the cloth inlet of an air treatment zone formed in a cloth retention tank. The inner wall surface of the rear part of the cloth retention tank is slid down from the cloth inlet part of the air treatment area toward the center part under its own weight while being separated from the treatment liquid in the rear part of the air treatment area, and then the air treatment The processing liquid is slowly transferred from the center of the area to the front part, separated from the processing liquid, and then pulled up by a pull-up reel installed in the header part connected to the front part of the air processing area, and then the processing liquid is transferred again. A method for liquid flow treatment of fabric, characterized in that the fabric is returned to the submerged treatment area in the fabric transfer pipe via an injection section for circulation treatment. 2. The method according to claim 1, wherein the cloth to be treated is transferred from the submerged treatment area to the air treatment area at a position 500 mm or more higher than the treatment liquid injection section. 3. A device that carries out liquid flow treatment by setting the cloth to be treated in the form of an endless rope and circulating both the cloth and the treatment liquid, which is equipped with a cloth inlet opened at the upper end, and a line extending from the cloth inlet toward the center bottom. A can barrel-shaped fabric retention tank comprising a rear part that is inclined so that the fabric to be treated slides down the inner wall surface, and a front part that extends diagonally upward from the center bottom part; A header section, which is equipped with a pulling reel for pulling up the fabric to be treated and a loading/unloading port for the fabric to be treated, is connected to the front part of the fabric retention tank, and is arranged directly below the header section, and is arranged to direct the flow of the processing liquid. a processing liquid injection section for generating the fabric, and a processing liquid injection section disposed below the fabric retention tank, extending from the processing liquid injection unit and communicating with a fabric inlet opening in a rear part of the fabric retention tank. a fabric transfer tube for transferring the treated fabric in a substantially straight line along with the generated treatment liquid flow;
The rear part of the fabric retention tank has an inclination of 30° to 90° with respect to the horizontal plane, and the fabric retention tank is configured as a double bottom or a double cylinder partitioned over almost the entire length by a punching plate. A fabric liquid flow processing device characterized by: 4. The apparatus according to claim 3, wherein the opening position of the cloth inlet in the rear part of the cloth retention tank is located 500 mm or more above the treatment liquid jetting position of the treatment liquid jetting section. 5. A device that carries out liquid flow treatment by setting the cloth to be treated in the shape of an endless rope and circulating both the cloth and the treatment liquid, which is equipped with a cloth inlet that is opened at the upper end, and which has a direction from the cloth inlet to the center bottom. A can barrel-shaped fabric retention tank comprising a rear part that is inclined so that the fabric to be treated slides down the inner wall surface, and a front part that extends diagonally upward from the center bottom part; A header section, which is equipped with a pulling reel for pulling up the fabric to be treated and a loading/unloading port for the fabric to be treated, is connected to the front part of the fabric retention tank, and is arranged directly below the header section, and is arranged to direct the flow of the processing liquid. a processing liquid injection section for generating the fabric, and a processing liquid injection section disposed below the fabric retention tank, extending from the processing liquid injection unit and communicating with a fabric inlet opening in a rear part of the fabric retention tank. a fabric transfer tube for transferring the treated fabric in a substantially straight line along with the generated treatment liquid flow;
The slope of the rear part of the cloth retention tank is 30° to the horizontal plane.
90°, and the cloth retention tank is configured as a double bottom or double cylinder partitioned over almost the entire length by a punching plate, and the inner space of the header part and the inner space of the rear part of the cloth retention tank. A liquid flow processing device for fabric, characterized by comprising a communication pipe that communicates with the fabric.