JPS58120855A - Steam high temperature treating apparatus - 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 wet heat high temperature treatment apparatus that is advantageous for continuous wet heat treatment of fabrics.

For example, conventional equipment for continuously scouring, bleaching, dyeing, resin processing, weight loss processing, etc. on long lengths of fabric, which can continuously pass the fabric through, uses a steamer can that can maintain high temperature and high humidity. The fabric is subjected to continuous moist heat treatment at high temperature and high humidity using a reactor, and during this high temperature and high humidity heat treatment, the chemical (1) solution is reacted to the fabric to perform the above-mentioned scouring, bleaching, It has been proposed to continuously perform targeted treatments such as dyeing, resin processing, and weight reduction processing.

However, in such continuous wet heat treatment equipment for fabrics, the inside of the steamer can is heated before the wet heat treatment is performed.
Since the fabric must be kept in a high-temperature, high-humidity atmosphere, it takes a long time for the inside of the steamer can to reach the desired high temperature and humidity, 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 an atmosphere of a predetermined temperature and humidity.

In addition, 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 the pressure resistance has been limited. Due to the demand for better structure and heat-resistant structure, the size of the device has increased and the cost of the entire device has also increased.

(9) The present invention has been made in view of the above, and the first object of the present invention is to spray a high-temperature, temperature-humidity gas onto the fabric to be processed using a jet pressure from a nozzle. This aims to speed up the operation of wet heat treatment and simplify the structure of the steamer can. The second purpose is to uniformly and replenish the necessary amount of moisture over the entire surface of the fabric after absorbing the humidity blown from the nozzle, and to effectively and effectively replenish the fabric with sufficient humidity. The key is to perform reliable moist heat treatment. The third purpose is to suppress wastage of thermal energy and to enable highly economical wet heat treatment.

Embodiments of the present invention that can achieve the above objects will be described in detail below with reference to the drawings, but the present embodiments are applicable to, for example, continuous scouring processing, bleaching processing, dyeing processing, glint coloring processing, It can be applied to moist heat treatment for the purpose of resin processing, weight reduction processing, etc.

Example I In FIG. 1, this example is effective for scouring bleaching, weight loss, and Norint color development. That is, 1 is a fabric to be subjected to moist heat treatment, and this fabric 1 is pre-impregnated or coated with a caustic solution (for scouring, bleaching, weight loss, etc.) or a dye solution (for color development). has been done. Reference numeral 2 denotes a vertical heat treatment chamber, and inside this heat treatment chamber 2 there is arranged a humidifying roll 4 which also serves as a guide roll and has zero sheets for transferring the fabric 1 introduced from the large fabric opening 3 to Nobuzaku. It is set up. This humidifying roll 4 has a circumferential surface made of a material (metal) that has good heat conductivity and is not hygroscopic, and furthermore, cold air or cold water can be continuously passed through the inside of this humidifying roll 4. The difference in temperature between the inside and outside of the roll causes dew to adhere to the outer peripheral surface of the roll. Reference numeral 5 denotes a humid burner for blowing a gas with high humidity and heat toward the surface of the fabric moving in the heat treatment chamber 2. Mixed gas with atomized moisture (highly humid hot gas) that is forcibly mixed into the flame
is injected, and has a structure as shown in Fig. 2. That is, a moisture spray pipe 53 is provided at the edge of the crater 52 of the gas burner 5°, and a flame 54 is sprayed from this mass 52.
It is now possible to mix the atomized water toward the. Since a separate application has been filed regarding the mechanism of this humid bath 5, further explanation will be omitted here.

Reference numeral 6 denotes a cylinder that drives the humid burner 5, and the driving force of this cylinder 6 causes the high humidity hot gas injected from the humid burner 5 to be blown onto the surface of the fabric 1 and onto the fabric. The spraying can be selectively interrupted. Reference numeral 7 designates a wall plate provided along the fabric transport path to prevent the radiation of moist heat from the humid bath 5, and 8 designates a normal guide roll.

The above is the configuration of the device according to this embodiment.Next, its operation will be described. First, the humid burner 5 is ignited, and the humid burner 5 ejects steam together with flame. A cooling fluid is passed through the inside of the roll to cool the surface of the humidifying roll. As the surface of the humidifying roll is cooled, steam (humidity) in the heat treatment chamber 2 adheres to the surface of the humidifying roll, thereby forming a humidifying roll. Therefore, the fabric 1 to which a predetermined treatment liquid has been applied in advance is supplied into the heat treatment chamber 2, guided by each humidifying roll and transferred continuously, and a high temperature and humid flame (for example, 300℃) directly. In this way, the fabric that receives the high-humidity hot gas from the humid burner 5 undergoes a moist heat reaction, and reactions such as scouring, bleaching, or dyeing proceed, but the heating action that accompanies this reaction progresses. As a result, the moisture content (moisture absorption) of the fabric tends to be insufficient. Therefore, by guiding this fabric in contact with the humidifying roll 4, the dew adhering to the surface of the humidifying roll 4 can be removed from the fabric 1.
Since the moisture is transferred to and absorbed by the fabric 1, the amount of moisture absorbed by the fabric 1 increases, resulting in the effect that effective treatment can be performed in high humidity. In addition, by adjusting the cooling degree of this humidifying roll 4, the humidifying roll 4 can be
The amount of dew generated and attached to the surface of fabric 1 can be adjusted.
An appropriate amount of dew can be uniformly absorbed over the entire surface of the fabric 1 depending on the desired amount of moisture absorption.

Example In FIG. 3, this example is suitable for dyeing plain fabrics with reactive dyes, for example, and parts in common between the configuration of this example and the configuration of the above example are designated by the same reference numerals. The explanation of the mechanism will be omitted. 9 is heat treatment chamber 2
This is a metering liquid application roll for applying a fixed amount of an auxiliary agent to both sides (or the other side) of the fabric 1 immediately before being fed into the fabric 1, and 10 is a liquid tank containing the auxiliary agent. Reference numeral 11 denotes a 17th cleaning chamber adjacent to the heat treatment chamber 2, and this cleaning chamber 11
A shower pipe 12 and a transfer conveyor 13 are disposed inside to carry out tension-free and effective washing while transferring the fabric.

In this embodiment, a fabric 1 printed with, for example, a reactive dye is transferred to an auxiliary tank 10 by a liquid application roll 9.
The liquid inside is applied and supplied into the heat treatment chamber 2. The fabric 1 thus supplied into the heat treatment chamber 2 is blown with high humidity hot gas from the humid burner 5, for example, a high humidity flame of around 300°C, so that the fabric 1 receives this high humidity hot gas and becomes glint dyed. progresses at high speed. In this way it received a humid hot gas. The qH fabric is pulled up to the upper part of the heat treatment chamber 2, but the temperature inside this heat treatment chamber 2 is maintained at a high temperature due to the high-temperature rising air current emitted from the humidifier 5, and a large amount of dew forms on the surface of the humidifying roll. Because of this, the fabric moves through the heat treatment chamber 1 while being exposed to humid, high-temperature moist heat and dew attached to the surface of the humidifying roll. During this process, the reactive dyeing of the dye is completed, and the dye is taken out of the heat treatment chamber 1 and transferred to the cleaning chamber 11, which is the next step. Therefore, in this embodiment, as in the previous embodiment, the fabric fed into the heat treatment chamber 2 is subjected to sufficient and effective humidification by the humidification action of the humidification roll, and is subjected to the desired moist heat treatment by heating. .

In any of the above embodiments, since the wall plate 7 is provided near the fabric transfer path, the wall plate 7 suppresses the dissipation of moist heat and effectively imparts moist heat to the fabric. There are also effects that can be achieved.

As described above, the present invention provides a heat treatment chamber with a plurality of metal humidifying rolls that can guide the continuously transferred fabric and cool the surface by passing cooling fluid therein. Furthermore, since this apparatus is a wet heat high temperature treatment apparatus in which a humid burner for blowing high humidity hot gas toward both sides or one side of the fabric transferred by the humidifying roll is disposed in the heat treatment chamber, this apparatus can process the fabric. By cooling the guiding humidifying roll, dew adhering to the surface of the humidifying roll is transferred to the transfer fabric, so that uniform humidification can be performed over the entire surface of the transfer fabric.

In addition, the humidification by this humidifying roll can adjust the amount of dew generated on the surface of the roll by changing the cooling temperature of the humidifying roll, so by adjusting the cooling temperature setting, that is, the flow rate of cooling fluid, the roll It is possible to control the humidification of the fabric by adjusting the amount of dew attached to the surface, which has the effect of imparting appropriate humidity to the fabric and performing moist heat treatment of good quality.

Continuous moist heat treatment of fabric that is highly economical and eliminates the need for a steamer can and a sealing mechanism at the fabric inlet and outlet of the steamer can to maintain a high temperature and high humidity atmosphere (9) as in the past. Equipment can be provided. In addition, it is possible to immediately apply moist heat to the fabric without having to run the fabric until a large amount of thermal energy has been accumulated in the steamer can, making it possible to speed up the processing operation and further reduce the waste of machining time. There is also an effect that can eliminate the problem.

[Brief explanation of the drawing]

The drawings all show embodiments of the present invention; Fig. 1 is an explanatory diagram of the entire device, Fig. 2 is a sectional view of a humid burner, and Fig. 3 is an explanatory diagram of the device showing another embodiment. . 1... Fabric 2... Heat treatment chamber 3... Fabric inlet 4... Humidifying roll 5... Humidity burner 6... Cylinder 7... Wall plate 8.
... Guide roll 9 ... Metering liquid application roll 10 ...
Flow tank 11...Cleaning chamber 12...Shower pipe 13...Transfer conveyor (10) Figure 1 Figure 2

Claims (1)

[Claims] A plurality of metal humidifying rolls are provided in the heat treatment chamber to guide the continuously transferred fabric and to cool the surface by passing a cooling fluid inside the fabric, and the fabric is further transferred by the humidifying rolls. A moist heat high temperature treatment apparatus characterized in that a high humidity burner for blowing high humidity hot gas toward both sides or one side of the fabric is disposed in the heat treatment chamber.