JPH06272158A - Apparatus for wet-heat treatment of textile product - Google Patents

Abstract

PURPOSE:To enable uniform wet-heat steam treatment of a cloth introduced into a steamer chamber in a short time by irradiating the cloth with microwave. CONSTITUTION:In the continuous wet-heat treatment of a cloth, the cloth 1 to be treated is introduced into a treating liquid tank 2, applied with a treating liquid 3 by a padding mangle 4, transferred into a steamer chamber 5 filled with saturated steam and transported in meandering manner along a group of guide rollers 6. Microwave generated by a microwave generator 8 positioned outside of the steamer chamber 5 is passed through a waveguide 9, an electromagnetic horn 10 having a side diffusion angle of 0-35 deg. and a plane diffusion angle of 0-180 deg. and a partition plate 13 for checking the back flow of steam and placed on the opening part of the horn at the side of the chamber 5 and uniformly radiated to the total surface of the cloth to apply effective wet-heat treatment. The treated cloth is passed through a sealing tank 7 and taken out of the chamber 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet heat treatment apparatus for textiles used for continuously wet heat treating a cloth.

[0002]

2. Description of the Related Art A continuous heating system for industrially producing and processing a long fiber cloth for the purpose of pretreatment, weight reduction treatment, etc., employs a method using saturated heat of steam or a microwave heating means. It has been proposed to use, for example, cloth heating means using wet heat (steam),
It is known to be used at the time of pretreatment (scouring, bleaching) of cloth, weight reduction treatment, and the like.

Further, in order to meet the demand for high-speed heating of cloth, particularly in recent years, application of microwaves has been advanced, and various kinds of devices have been developed as a heating device for textiles using the microwaves. In particular, as a heating device using this microwave, various techniques have been disclosed for use as a heating device for the purpose of reducing the alkali content of, for example, a woven or knitted polyester fiber or a nonwoven fabric.

In other words, before the heating means using microwaves was developed, the wet heat treatment with steam was mainly used, but in the steam reduction processing utilizing this wet heat, the heating reaction time is long and the productivity is high. There was something lacking. Further, in the weight reduction processing using microwaves, which has been developed in recent years, the heat treatment time can be shortened to, for example, about 1/4 of the heat treatment time by the above-mentioned wet heat. Was up to about 27%, for example, and there was a limit to weight reduction.

Therefore, as a means for further increasing the degree of weight reduction, a technique of using steam and high frequency in combination has been developed. For example, JP-A-63-36387 and JP-B-60.
-12467, Japanese Patent Publication No. 59-26701,
A technique disclosed in Japanese Utility Model Publication No. 60-23353 is disclosed.

[0006]

However, in such a conventional steaming heat treatment means which also uses microwaves,
It is difficult to uniformly disperse microwaves inside the steamer, that is, in the steam, and it is difficult to uniformly apply (irradiate) microwaves over the entire surface of a wide and long fabric such as a piece of cloth. Due to this, there is a problem in that it is impossible to uniformly heat-treat the entire surface of the long fabric, for example, weight reduction treatment, pretreatment, and dyeing treatment over the entire fabric.

[0007]

SUMMARY OF THE INVENTION The present invention has been made by paying attention to such a problem, and in a wet heat treatment apparatus for performing wet heat reaction treatment of a cloth to be treated by using wet heat and microwave in combination. The microwave irradiating into the wet heat treatment chamber for performing uniform irradiation is uniformly provided over the entire length of the cloth transferred in the processing direction in the cloth direction, and an electromagnetic horn having a specific shape is provided to cover the entire surface of the cloth. Another object of the present invention is to provide a wet heat treatment apparatus capable of performing uniform and effective wet heat treatment by wet heat and microwave.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on the embodiments shown in the drawings.

In FIG. 1, reference numeral 1 denotes, for example, pretreatment, dyeing,
It is a long cloth to be subjected to heat treatment for the purpose of processing such as weight reduction, and the working width (total width) of this cloth 1 is 1800 mm.
Is. Reference numeral 2 denotes a treatment liquid tank for impregnating and impregnating the cloth 1 with the treatment liquid 3 to be treated, and a desired amount of liquid is applied by the padding mangle 4.

Reference numeral 5 denotes a normal pressure steamer can body for subjecting the cloth 1 to which the treatment liquid 3 has been applied to the wet heat treatment. Inside the steamer can body 5, a guide roll for securing a stay time of the cloth 1 is provided. A group 6 is arranged. Further, a sealing tank 7 is provided for filling the steamer can body 5 with saturated steam and suppressing the release of the saturated steam outside the steamer.

Reference numeral 8 denotes a microwave transmitter provided outside the steamer can body 5, which generates a microwave of 2450 MHZ, for example. The microwave emitted from the microwave transmitter 8 reaches the electromagnetic horn 10 through the waveguide 9.
Microwaves are radiated from the electromagnetic horn 10 toward the cloth 1 in the steamer can body 5.

The electromagnetic horn 10 has a structural shape for uniformly irradiating the entire width direction of the cloth with microwaves. That is, the shape of this electromagnetic horn 10 is as shown in FIG.
As shown in (a) and (b), the supply port 11 has a horizontally long rectangular shape having an aspect ratio of about 1: 4. Similarly, the aspect ratio is about 1.
The radiation port 12 is a pair 4 and is approximately 7.5 times the opening area of the supply port 11, and the lateral width of the radiation port 12 is approximately 1.2.
It is formed in a shape having a double axial length. That is, the side diffusion angle θ of the electromagnetic horn 10 is larger than 0 ° and smaller than 35 °, and the electromagnetic horn 1
The plane diffusion angle α of 0 is preferably larger than 0 ° and smaller than 180 °. Also such an electromagnetic horn 1
In order to irradiate microwaves over the entire cloth width having a working width of 1800 mm, for example, 0 has two electromagnetic horns 10 arranged in the lateral direction as shown in FIG. Reference numeral 13 denotes a partition plate for preventing vapor backflow, which is formed of a dielectric material such as a Teflon sheet and is attached to the electromagnetic horn emission port 12.

The embodiment of the present invention is constructed as described above. Next, its operation will be described.
A predetermined amount of the dye liquor 3, for example, is applied to the fabric 1 to be treated by the mangle 4, and thereafter, the saturated vapor is supplied into the steamer can body 5 in which the saturated vapor is held. At the same time, the microwave oscillator 8 is operated so that the microwave generated by the oscillator 8 is formed with the waveguide 9 and the side surface angle θ of 25 to 35 ° and the plane angle α of 45 ° to 50 °. Electromagnetic horn 1
0 was used to irradiate the inside of the steamer can 5.

Therefore, the liquid-containing cloth 1 supplied into the steamer can body 5 reacts rapidly by the moist heat of steam and the heat generation of microwaves due to the application rate of 90% or more, and the cloth stays in the steamer can body 5, for example. The dyeing with the direct dye can be completed in about 3 minutes.

Further, by uniformly irradiating the fabric 1 with the microwave generated from the microwave transmitter 8 by using the electromagnetic horn 10, the fabric 1 was dyed well without causing uneven dyeing. Furthermore, by setting the side diffusion angle θ of the electromagnetic horn to 35 °, the side diffusion angle θ is set to, for example, 40 degrees.
A good dyed cloth in which uneven dyeing is eliminated as compared with the case of changing the angle from 45 ° to 45 ° and the dye retention rate is improved to 1.8 times that of the conventional one by making it uniform over the entire surface of the cloth Was obtained.

Further, the dye concentration of the drainage in the washing step after dyeing is improved to 1/5 to 1/10 of the conventional example, the economical amount of dye used, the ease of wastewater treatment, and further The improvement of environmental issues was remarkable.

Further, in this embodiment, since the partition plate 13 for preventing vapor backflow is provided at the steam electromagnetic horn radiation port 12, the steam in the steamer can body 5 adheres to the inner wall surfaces of the electromagnetic horn 10 and the waveguide 9. The microwaves emitted by the transmitter can be effectively guided into the steamer can body, and the heat treatment efficiency of the fabric by the microwaves is improved.

[0018]

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a steamer can body into which saturated steam and microwaves are introduced, and a fabric supplied to the steamer can body are subjected to a wet heat reaction treatment with the steam and microwaves to wet a textile product. In a heat treatment apparatus, a wet heat treatment of a textile product in which microwaves generated from a microwave generator installed outside the steamer can body are irradiated toward a cloth transferred through the steamer can body through a waveguide and an electromagnetic horn. Since it is a device, it can uniformly irradiate the microwave generated from the microwave transmitter over the entire surface of the cloth, and as a result, it is a non-defective processed cloth that does not cause uneven processing on the cloth. Is effective in a short time.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a wet heat treatment apparatus according to an embodiment of the present invention.

2A and 2B are a plan view and a side view of an electromagnetic horn according to an embodiment of the present invention.

FIG. 3 is a schematic perspective view showing an attachment mode of the electromagnetic horn of the embodiment of the present invention.

[Explanation of symbols]

 1 ... Fabric 2 ... Treatment liquid tank 3 ... Treatment liquid 4 ... Padding mangle 5 ... Steamer can body 6 ... Guide roll group 7 ... Seal tank 8 ... Microwave transmitter 9 ... Waveguide 10 ... Electromagnetic horn 11 ... Supply port 12 ... Radiating port 13 ... Partition plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Miteru Santo 4-4-5 Usu, Wakayama City, Wakayama Prefecture Shanto Iron Works Co., Ltd. (72) Inventor Hiroshi Ishitoru 4-4-5 Usu, Wakayama City, Wakayama Prefecture No. Co., Ltd. Shandong Iron Works Co., Ltd. (72) Inventor Koji Santo 4-5 Usu, Wakayama, Wakayama Prefecture Shandong Iron Works Co., Ltd.

Claims (3)

[Claims] 1. A steamer can body into which saturated steam and microwaves are introduced, and a wet heat treatment apparatus for textile products in which a fabric supplied into the steamer can body is subjected to a heat and heat reaction reaction with the steam and microwaves. A wet heat treatment apparatus for a textile product, which is characterized in that a microwave generated from an externally provided microwave generator is irradiated onto a cloth transferred through a steamer can through a waveguide and an electromagnetic horn. 2. A steamer can body into which saturated steam and microwaves are introduced, and a wet heat treatment apparatus for textile products in which a fabric supplied into the steamer can body is subjected to a wet heat reaction treatment with the steam and microwaves. The microwave generated from the microwave generator installed outside is applied to the cloth that moves inside the steamer can via the waveguide and the electromagnetic horn, and steam is further applied to the opening on the steamer can side of the electromagnetic horn. A wet heat treatment apparatus for textile products, which is provided with a backflow prevention partition plate. 3. The side diffusion angle (θ) and the plane diffusion angle (α) of the electromagnetic horn are 0 to 35 ° in the microwave irradiation direction.
3. The wet heat treatment apparatus for a textile product according to claim 1, wherein the wet heat treatment apparatus is opened at 0 to 180 °.