JPS60239557A - Continuous hot liquid treatment method and apparatus of cloth - 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 The present invention relates to a method and apparatus for continuous hot liquid treatment of a fabric, which is advantageous for continuously performing pretreatment, weight reduction treatment, resin processing, etc. on a long fabric.

Conventional hot liquid treatment of this kind, for example, the conventional method of continuously pre-treating (desizing, scouring, bleaching) long fabrics produced industrially, involves impregnating the fabric to be treated with a specified chemical solution. There is a known method in which the pretreatment is carried out by steaming it under normal pressure. (trademark of Shandong Iron Works Co., Ltd.) is a typical example and is widely used in the industry.

As is well known, such a purple range, that is, a wet heat treatment apparatus, has a reaction tower that performs steaming under normal pressure, and while the fabric to be treated is passed through this reaction tower, a chemical solution is reacted to achieve the desired result. Processing is being carried out. However,
In such a purple range, since the inside of the reaction tower is at normal pressure, it is impossible to raise the moist heat temperature applied to the fabric to a high temperature of 100°C or higher, and therefore it is impossible to raise the temperature of moist heat applied to the fabric to a high temperature of 100°C or higher. The processing time was long, and the processing time was approximately 30 minutes.

As a result of repeated research aimed at shortening this processing time and saving thermal energy, we have now developed a reaction chamber (high-pressure steamer can) that is heated and maintained at a temperature of approximately 1.60°C. By using this method, it is possible to speed up the wet heat reaction treatment of fabrics, thereby doubling productivity. Since the steamer needs to be maintained in an atmosphere of high temperature and high humidity, it takes a long time to reach the specified high temperature and high humidity inside the steamer can, which increases the preparation time before the fabric is put into operation. Furthermore, a large amount of thermal energy is expended until the inside of the steamer can reaches a predetermined temperature and humidity atmosphere.

It's a trench, the fabric inlet and outlet of the steamer can are
Continuous introduction and extraction of fabric is allowed, but if the steamer is equipped with a sealing mechanism to maintain high temperature and high humidity inside the steamer can, the overall structure of the steamer can becomes complex, and furthermore, the pressure-resistant structure becomes complicated. However, due to the demand for a heat-resistant structure, the size of the device has increased and the cost of the entire device has been high.

The present invention has been made in view of the above, and the main purpose of the present invention is to directly apply a high humidity heat shield (100°C or higher) at a constant temperature to a fabric to be processed under normal pressure. To provide a method for continuous hot liquid treatment of fabric and an apparatus therefor, which can speed up the wet heat treatment operation and increase productivity by speeding up the wet heat reaction on the fabric. The purpose is to

The present invention will be explained in detail below based on embodiments shown in the drawings.

1 is a long fabric to be subjected to moist heat treatment; 2 is a liquid tank for impregnating the fabric 1 with a predetermined treatment liquid (for example, pretreatment number, reduction j4: liquid, resin liquid, etc.); 3 liquid tanks 2; This is a squeezing roll for squeezing out excess liquid contained in the drawn fabric. Reference numeral 4 denotes a processing chamber into which a liquid-impregnated fabric is introduced and subjected to moist heat treatment, and a heater 5 is disposed near the fabric inlet in this processing chamber 4 along the path of the fabric. . Reference numeral 6 denotes a guide roll for the fabric which is disposed following the group of heaters 5. A large number of guide rolls 6 are arranged so that the fabric can be meandered in order to ensure a long transfer time for the fabric. has been done. Further, a heater 5 for heating the fabric is disposed along the path of the fabric that is conveyed in a meandering manner by the guide rolls 6. 7 is a hot water spray nozzle for applying and impregnating the fabric transferred by the guide roll 6 with hot water; 8 is a liquid receiving tray for receiving the hot water sprayed from the hot water spray nozzle 7 and impregnating the fabric; 9 is a folding machine that shakes off the fabric that has passed through the six groups of kite rolls.

It is desirable that the guide roll 6 described above be heated, for example, to around 150°C. Reference numeral 10 denotes a drum on which the fabric 1 which is sequentially folded and folded by the shaker folding machine 9 is placed, and this tram 10 is slowly rotated counterclockwise in the drawing. The lower half of the housing octopus drum 10 is a liquid tank 11 formed in an approximately semicircular shape.
This drum 1
A gap 12 serving as a fabric passage is maintained between the outer peripheral surface of the liquid tank 11 and the inner peripheral surface of the liquid tank 11.

13 is a can body that can be sealed, and this can body 1
3 is provided with a steam supply pipe 14 for supplying high-pressure steam into the can, and an automatic internal pressure regulating valve 15 for always keeping the steam pressure inside the can constant. 16 is can body 1
3, and one end of this liquid heating pipe 16 is connected to each nozzle 7 arranged in the rth processing chamber 4, which continuously performs wet heat treatment on the fabric.
The other end of the liquid heating valve 16 is connected to the discharge port of the pump 17. 181d: a entrance 1
A filter 21 for removing impurities is removably installed inside the filtration tank 18. The inlet 19, which is a trench, is connected to the processing chamber 4.
It is connected to a liquid receiving tray 8 provided at the lower part of a nozzle 7 disposed therein, and an outlet 2° communicates with a liquid preparation 4-soluton 21. The outlet 22 of this g-regulating tank 21 is connected to the pump 1.7, and the liquid in the liquid-regulating tank 21 is sent to the liquid heating pipe 16 by the driving force of the pump 7. Nao key/+
A liquid supply pipe 23 is provided so that a desired solution can be added to the liquid preparation tank 21 to keep the liquid concentration in the liquid preparation tank 21 constant.

In addition, there is an alignment holding plate 25 for sequentially feeding the fabrics shaken on the drum 10 into the H tank 11 in an aligned state.
is a fabric pulling roll.

The above is the configuration of this embodiment.Next, its operation will be described. First, pressurized steam is supplied into the can body 13 through the steam supply pipe 14.
For example, 5 h/ct4 is supplied to the inside of this can body 13.
Assuming a high-pressure steam chamber of
It is kept at 0°C.

With this heating power of 150°C, the liquid heating tube 16 disposed inside the can body 13 is heated to an approximate temperature of 150°C due to its thermal conduction, so this heating power tube 16 is kept under pressure. By passing the heated liquid, the temperature of the liquid in these heating tubes becomes approximately 150°C, and it is sprayed from the nozzle 7 to impregnate the fabric to be treated, but this heated liquid is injected from the nozzle under normal pressure. As a result, the temperature of the heated liquid decreases rapidly, but by making the distance between the nozzle and the fabric as close as possible, the heated liquid of 100° C. or higher can be applied to the fabric to be treated. Therefore, by heating the heater 5 and driving the fabric transfer roll, the treatment liquid tank 2 is heated.
The fabric 1 impregnated with the treatment liquid therein is pulled out from the treatment liquid tank 2 and introduced into the treatment chamber 4. The fabric l introduced into the processing chamber 4 is first heated by radiant heat from the group of heaters 5, and preheating of the fabric progresses, causing the fabric to gradually expand and the processing liquid impregnated into the fabric to be absorbed into the fabric. It is transferred to the inner core of the fiber. Next, while the fabric is conveyed in a meandering manner by the guide rolls 6, it is impregnated with high-temperature water of 100°C or higher sprayed from the nozzle 7, thereby causing the chemical component to penetrate into the inner core of the fabric and its reaction. is done quickly and effectively. The fabric, in which the medicinal liquid component is impregnated and fixed on the fabric and is undergoing reaction, is shaken off onto the drum 10 by the folding machine 9. The fabric thrown onto the drum 10 is kept folded in a meandering manner and sent into the liquid tank 11 as the drum rotates, where it is boiled for a relatively long time. At this point, the chemical reaction and complete digestion on the surface and inner core of the fabric are completed, and the desired liquid treatment, such as pretreatment, weight reduction, resin processing, etc., is completed uniformly over the entire surface of the fabric. .

As described above, the present invention preheats a fabric impregnated with a treatment liquid using radiant heat to increase the permeability of the treatment liquid over the entire surface of the fabric and the inner core, and then repeatedly applies a high-temperature liquid of 100°C or higher to the fabric. This is a continuous hot liquid treatment method for fabric in which the treatment liquid reaction proceeds, and then the fabric is passed through a liquid tank and subjected to boiling treatment. According to this method, the fabric impregnated with the treatment liquid is preheated. Since it is subjected to moist heat treatment in the order of → application of high-temperature liquid → boiling, the fabric is gradually heated by the preheating, so that the fabric swells over the entire surface of the fabric without wrinkles. . Next, a high-temperature liquid of 100°C is applied to the swollen fabric, so that the chemical components on the fabric tail are transferred uniformly over the entire surface of the fabric and even to the inner core of the fabric, causing a chemical reaction. proceed. The fabric is then boiled for a relatively long period of time to complete the chemical reaction, and the desired moist heat treatment can be applied evenly and favorably over the entire surface of the fabric.

[Brief explanation of the drawing]

The drawings are explanatory diagrams showing an embodiment of a continuous moist heat treatment apparatus for fabrics according to the present invention. 1... Long fabric 2... # Tank 3... Squeezing roll 4... Processing chamber 5... Heater 6... Guide roll 7... Hot water injection nozzle 8... Liquid receiving plate 9...・Folding machine 10...Drum 11...Liquid tank 12...
・Gap 13... Can body 14... Steam supply pipe 15... Internal pressure automatic adjustment valve 16... Liquid heating pipe 17... Pump 1
8...r overtank 19...inlet 20...outlet 21...liquid preparation tank 22...outlet 23...liquid supply pipe 24...alignment holding plate 25...
Pulling roll.

Claims (1)

[Claims] 1. A fabric impregnated with a treatment liquid is preheated by radiant heat to increase the permeability of the treatment liquid over the entire surface of the fabric and into the inner core, and then a high-temperature liquid of 100°C or higher is repeatedly applied to the fabric. 1. A method for continuous hot liquid treatment of fabric, characterized in that the fabric is subjected to a boiling treatment by passing through a liquid tank to allow the reaction of the treatment liquid to proceed. 2. A group of heaters that apply radiant heat to the fabric that is impregnated with the treatment liquid and that is continuously transferred, and a hot water injection nozzle that repeatedly applies high-temperature water of 100°C or higher to the fabric that is transferred next to this group of heaters to impregnate the fabric. A drum for transporting the fabric in a folded state after the nozzle group, a liquid tank for passing the folded fabric transferred by this drum by immersing it in a liquid, and the above-mentioned boiling water. 1. A continuous hot liquid treatment device for fabrics, characterized in that a jet nozzle is equipped with a high hot liquid generation mechanism that supplies hot water of 100° C. or higher.