JPH08218267A - Air jet treatment process for ropy textile product and processing unit therefor - Google Patents

Abstract

PURPOSE: To provide an air jet fabric treatment process designed to accomplish the treatment in a short time through easy and accurate temperature control according to fabric type and dyes therefor. CONSTITUTION: A circular fabric treatment channel 1 with a channel 5 to convey a fabric in a virtually straight fashion connected to a staying tank 6 to convey the fabric in a meandering fashion is charged with an endless fabric 7; in a treatment liquid circulating channel 11, a treatment liquid 12 is fed from the bottom of the staying tank 6, via a pump 9 and a heat exchanger 10 for treatment liquid, through a treatment fluid jet section 4, into the channel 1; in an airflow circulating channel 16, an air jet is fed from the vapor phase section 17 or outside air feed section 18, via a blower 19 and a heat exchanger 20 for airflow, through the treatment fluid jet section 4, into the channel 1; thus, the fabric 7 is subjected to circulation treatment by the fluid spoutingly fed from the treatment fluid jet section 4. In this air jet fabric treatment process having the above scheme, the temperature of treatment liquid is controlled by the heat exchanger 10, and the temperature of airflow is subjected to follow-up control by the heat exchanger 20 based on the detected value of the treatment liquid temperature so as to be kept at a level same as the above temperature or differing from this temperature by a specified value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air flow type processing method and processing apparatus for cloth.

[0002]

2. Description of the Related Art Conventionally, as an airflow type processing method for cloth,
Techniques for dyeing and other treatments while circulating an endless fabric with an air stream are disclosed in JP-A-51-32885 and JP-B-63-36385. In these airflow type processing methods, the cloth is mainly transferred by an airflow, and the processing liquid wets the cloth and causes the dye to develop and fix.

[0003]

However, in the above configuration, the heat exchanger is provided in both the treatment liquid circulation passage and the air flow circulation passage, and the heat exchangers are separately controlled. Therefore, the entropy caused by the difference between the liquid and the gas is large. (Entropy) and the temperature control status is different. Therefore, the programs for control, the rate of temperature rise, and the set temperature are different, which makes it difficult to achieve uniformity and balance.

The object of the present invention is to control the temperature of the processing liquid with reference to the temperature on the outlet side of the processing liquid, and then maintain the airflow temperature at the same or a constant temperature difference, so that the kind of cloth or dye can be selected at the optimum temperature. It is intended to perform finely and accurately controlled control.

[0005]

In order to achieve the above object, in the first invention, a transfer passage for transferring a rope-shaped fiber product (hereinafter referred to as a cloth) in a substantially straight state and a retention tank for transferring in a meandering state are provided. The endless fabric is put into the annular fabric treatment passage connected at both ends, and in the treatment liquid circulation passage, the treatment liquid is supplied from the treatment fluid injection unit via the pump and the treatment liquid heat exchanger from the bottom of the storage tank. However, in the air flow circulation path, a blower is supplied from the gas phase part or the outside air supply part of the retention tank, the air flow is supplied from the processing fluid injection part via the heat exchanger for the air flow, and by the fluid injected and supplied from the processing fluid injection part. In an air flow type processing method in which a cloth is circulated, a temperature of the process liquid is controlled by a heat exchanger for the process liquid according to a program setting, and a heat exchanger for the air flow is controlled based on a detected value of the temperature of the process liquid. The airflow temperature was following control so as to hold the same or constant temperature differential.

In the second aspect of the present invention, an annular cloth processing passage is formed by connecting at both ends a transfer passage for transferring a rope-shaped fiber product (hereinafter referred to as a cloth) in a substantially straight state and a holding tank for transferring in a meandering state. A processing liquid circulation path for supplying a processing liquid from the bottom of the holding tank to a processing fluid injection unit provided at the upstream end of the transfer passage via a pump and a heat exchanger for the processing liquid, and a gas phase portion of the holding tank or outside air. An air flow circulation path for supplying an air flow from a supply section to a processing fluid injection section provided at an upstream end of the transfer path via a blower and an air flow heat exchanger, and a cloth by a fluid injected and supplied from the processing fluid injection section. In the air flow type processing device that performs circulation processing, a program setting device and a control unit are provided, a temperature sensor that detects the temperature of the processing liquid is provided at the outlet side of the processing liquid heat exchanger, and the outlet side of the air flow heat exchanger is provided. To detect the airflow temperature That a temperature sensor is provided, the air flow temperature to follow control to hold the treatment liquid temperature and the same or a constant temperature difference to control the process liquid temperature in accordance with the program.

[0007]

In the first aspect of the invention, the temperature of the treatment liquid is controlled by the heat exchanger for the treatment liquid according to the program, and the temperature is set according to the type of cloth, the type of dye, and the coloring temperature. Based on the temperature of the treatment liquid, the air flow heat exchanger was controlled to maintain the same temperature or a constant temperature difference. Since the liquid temperature control is more accurate and easier than the gas temperature control, it becomes possible to accurately control both the processing liquid temperature and the air flow temperature with one program setting by controlling the processing liquid temperature as a reference. It was

The second aspect of the present invention provides an apparatus for carrying out the first aspect of the invention, in which the temperature of the processing liquid is detected by a program setting device and a control unit via a temperature sensor on the outlet side of the processing liquid heat exchanger. The temperature of the air flow is controlled via the temperature sensor on the outlet side of the air flow heat exchanger based on this temperature. The control unit controls the supply and stop of the steam supplied to the heat exchanger, and can accurately and promptly follow the airflow temperature so as to maintain the same or constant temperature difference.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An air flow type processing apparatus shown as an embodiment will be described below with reference to the drawings. Reference numeral 1 is a cloth processing passage, which is composed of a header portion 3 containing a drive reel 2, a processing fluid ejecting portion 4 provided in a horizontal direction, a transfer passage 5 and a retention tank 6, and the transfer passage 5 and the retention tank 6 are provided. Are connected at both ends to form an annular passage for circulating the cloth 7. The bottom of the retention tank 6 has a double bottom having a porous nest plate 8 so that the treatment liquid dropped from the cloth can be separated. Reference numeral 9 is a pump, and 10 is a heat exchanger for the processing liquid. Reference numeral 11 denotes a treatment liquid circulation passage, and the treatment liquid 12 constitutes a passage from the bottom of the retention tank 6 to the treatment fluid injection unit 4 provided at the upper end of the transfer passage 5 via the pump 9 and the treatment liquid heat exchanger 10. are doing. A dye preparation tank 13 is supplied from the dye supply valve 14 through the injection pump 15 to the treatment liquid circulation path 11.

Reference numeral 16 denotes an air circulation circuit, which is a gas phase portion 1 of the retention tank 6.
7 or the outside air supply unit 18 supplies the air flow to the processing fluid injection unit 4 provided at the upstream end of the transfer passage 5 through the blower 19 and the air flow heat exchanger 20. Reference numeral 21 denotes steam as a heating source on the processing liquid side, which is supplied to the processing liquid heat exchanger 10 via a steam supply valve 22. 23 is a temperature sensor on the side of the treatment liquid, which is provided on the outlet side of the heat exchanger 10 for the treatment liquid. Two
Reference numeral 4 denotes steam as a heating source on the air flow side, which is supplied to the air flow heat exchanger 20 via a steam supply valve 25. 26 is a temperature sensor on the air flow side, which is provided on the outlet side of the heat exchanger 20 for air flow. A control unit 27 has a central processing unit by a computer, and sequence control is performed in accordance with a command from a program setting unit 28. The control unit 27 also controls the vapor supply valve 22 and the temperature sensor 23 on the processing liquid side and the vapor supply valve 25 and the temperature sensor 26 on the air flow side.

In this embodiment, the program setter 28 opens and closes the steam supply valve 22 of the heat exchanger 10 for processing liquid according to the inputted program, supplies steam to perform heat exchange, and the temperature sensor 23 on the outlet side. This temperature is detected by and it is checked whether it is according to the program. Then, based on the temperature detected by the temperature sensor 23, the airflow heat exchanger is controlled from the sequencer. That is, the opening / closing of the steam supply valve 25 to the heat exchanger 20 for airflow is controlled, and feedback control is performed according to the detection value from the temperature sensor 26. As described above, the temperature of the treatment liquid can be controlled, and the airflow temperature can be accurately controlled by one program setter and the control unit so as to keep the same or a constant temperature difference by following the temperature.

[0012]

According to the first aspect of the present invention, the processing liquid circulation path is provided while the cloth endlessly introduced into the annular cloth processing passage is transported and circulated in the cloth processing passage by the airflow supplied to the airflow circulation path. Is moistened with the treatment liquid containing the dye liquor from
The dyed liquor is subjected to a steaming action at a set temperature, and the dyeing liquid is colored and fixed, and other treatments are performed. At this time, since the temperature of the air flow is controlled on the basis of the temperature of the treatment liquid, the temperature of both fluids can be controlled by one program setting, so that the dyeing and other treatments can be accurately and easily performed.

A second aspect of the present invention provides an apparatus for realizing the above method, and a temperature sensor provided on the outlet side of the heat exchanger for processing liquid according to the type of cloth, the dyeing liquid, and the program. The temperature of the treatment liquid is detected by, and the temperature sensor on the outlet side of the airflow heat exchanger is used to control the airflow temperature to be the same as the treatment liquid temperature or to maintain a constant temperature difference, so the temperature setting is accurate and easy. As a result, dyeing and other treatments can be controlled more finely.

[Brief description of drawings]

FIG. 1 is a sectional view of an airflow type processing device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fabric treatment passage 4 Treatment fluid injection part 5 Transfer passage 6 Retention tank 7 Fabric 9 Pump 10 Heat exchanger for treatment liquid 11 Treatment liquid circulation passage 12 Treatment liquid 16 Air flow circulation passage 17 Gas phase portion 18 Outside air supply portion 19 Blower 20 Air flow Heat exchanger 23, 26 Temperature sensor 27 Control unit 28 Program setting device

Claims (2)

[Claims] 1. An endless fabric is introduced into an annular fabric treatment passage in which a transport passage for transporting a rope-shaped fiber product (hereinafter referred to as a fabric) in a substantially straight state and a retention tank for transporting in a meandering state are connected at both ends. Then, in the treatment liquid circulation path, the treatment liquid is supplied from the bottom portion of the retention tank through the pump and the treatment liquid heat exchanger, and the treatment liquid is supplied from the treatment fluid injection section, and in the air flow circulation path, the gas phase portion of the retention tank or the outside air supply section. In the air flow type processing method, the air flow is supplied from the processing fluid jetting unit through the blower and the air flow heat exchanger, and the cloth is circulated by the fluid jetted and supplied from the processing fluid jetting unit according to the program setting. The temperature of the treatment liquid is controlled by the heat exchanger for the treatment liquid, and the heat exchanger for air current is controlled so as to keep the same or a constant temperature difference based on the detected value of the treatment liquid temperature. An airflow type method for treating a rope-shaped fiber product, which is characterized by the following. 2. An annular fabric processing passage formed by connecting at both ends a transfer passage for transferring a rope-shaped fiber product (hereinafter referred to as a cloth) in a substantially straight state and a retention tank for transferring in a meandering state, and the retention tank. From the bottom part through the pump and the heat exchanger for the processing liquid, the processing liquid circulation path for supplying the processing liquid to the processing fluid injection part provided at the upstream end of the transfer passage, and the gas phase part of the retention tank or the outside air supply part. An air flow circulation path for supplying an air flow to a processing fluid jetting unit provided at an upstream end of the transfer passage via a blower and an air flow heat exchanger, and a cloth is circulated by a fluid jetted and supplied from the processing fluid jetting unit. In the airflow type processing device, the program setting device and the control unit are provided.
A temperature sensor for detecting the temperature of the treatment liquid is provided on the outlet side of the heat exchanger for the treatment liquid, and a temperature sensor for detecting the airflow temperature is provided on the outlet side of the heat exchanger for the air flow. An air flow type treatment apparatus for a rope-shaped fiber product, wherein the air flow temperature is controlled so as to keep the same or a constant temperature difference as the treatment liquid temperature.