JPS58120861A - Low temperature plasma treating apparatus of fiber product - 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 an apparatus advantageous for low temperature plasma processing.

Conventionally, in the industrial process of continuously processing fabrics such as woven and knitted fabrics, the process before dyeing involves removing water-repellent impurities adhering to the fabric or making it hydrophilic so that the dye solution can easily penetrate into the fabric. - Softness, water repellency, and scouring process after dyeing
There is a finishing process that imparts properties such as anti-static, anti-fouling and water-absorbing properties, but all of these processes are water-based.

For example, in the scouring process, for fabrics containing cotton, alkalis such as caustic soda and soda ash and scouring aids are added.
Steaming at around 100℃ for 20 minutes or more or boiling in an aqueous solution containing an alkali and scouring aid to solubilize water-repellent impurities, and then remove chemicals and solubilized impurities adhering to the treated fabric. As a means to remove deposits, it was necessary to repeatedly wash with water and further to dry after washing with water. In addition, in the finishing process, it is necessary to apply a finishing agent dissolved or dispersed in water and then pass it through a dryer to evaporate the water, and depending on the purpose of processing, there may be an additional step of reacting and fixing the finishing agent through high-temperature heat treatment. It was necessary.

However, with such treatment means, the cost of the treatment chemicals is high, a large amount of heat is required to cause the chemicals to react with the fabric, and furthermore, in the case of the scouring process, the chemicals contained in the reaction-treated fabric are A large number of washing machines are required to remove residual liquid, dirt, impurities, and/or deposits, and a large amount of water resources are required to be supplied to each of these washing machines, and the washed waste liquid is disposed of. At present, multi-valued water resources dη and thermal energy are used to pre-treat fabrics because a treatment device is required. Furthermore, since the waste liquid discharged from washing machines inevitably contains chemicals, problems such as waste liquid pollution arise, and the treatment of the waste liquid also requires large equipment costs, personnel costs, etc. Therefore, it lacked economic efficiency, especially for the textile processing industry.

The present invention has been made in view of the above, and provides a textile product that can uniformly process both sides of textile products such as fabric using low-temperature plasma without using almost any thermal energy or water resources. The purpose of the present invention is to provide a processing device for the following.

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

゛In Fig. 1, the device is a reactor, and this reactor 1 has openings 3 and 4 through which the fabric 2 to be treated is taken in and taken out.
Further, these openings 3 and 4 are sealed with a lid 5. 6 and 7 are fabric winding shafts arranged near the openings 3 and 4 in the reactor 1, and both winding shafts 6 and 7 are driven by a drive mechanism (not shown) such as a motor. The fabric being wound on one winding shaft 6 may be wound on the other winding shaft, or both winding shafts may be intermittently rotated in forward and reverse directions so that the fabric is wound on one winding shaft 6. After the winding shaft 7 is wound, the other winding shaft 7 is reversed and the winding is performed on the winding shaft 7. When the winding by this winding shaft 7 is completed, the winding shaft 6 is The winding force can be reversed and the winding can be switched to the winding force shaft 6. 8 and 9 and 8' and 9' are two pairs of electrode plates vertically spaced apart from each other with the fabric 2 stretched between both winding shafts 6 and 7 as the border. , this one electrode plate 8 and 8
' is supplied with high frequency from an oscillator (not shown) installed outside the reactor 1, and the other electrode plates 9 and 9' are grounded, and a pair of positive and negative electrodes A pair of positive and negative electrode plates 8' are provided adjacent to the plates 8 and 9.
and 9' are upside down. Further, these electrode plates 8, 8' and 9° 9' are required to be made of, for example, a wire mesh or a porous metal plate so that the dispersion and distribution of gas is uniform over the entire surface of the electrode plates. This is because by generating a substantially uniform low-temperature plasma over the entire surface of the electrode plate, the gas excited by the high frequency can be caused to float approximately evenly over the reeds and near the entire surface of the metal plate. 10 and 10' are gas nozzles for blowing out gas toward the entire surface of the electrode plates 8 and 8', and 11 and 11' are intake ports that are arranged opposite to the gas nozzles 10 (5) and 10' with the pair of electrode plates in between. It's a duct. Therefore, with respect to the vertical position of the first electrode plates 8, 9, gas nozzle 1o, and intake duct 11, the second electrode plate s1.9
The vertical positions of the gas nozzle 10' and the intake duct 11' are reversed with the fabric 2 as the boundary. 1
Reference numeral 2 denotes an enclosure provided around the electrode plate 8, and this enclosure 12 prevents the scattering of the low-temperature plasma generated by the electrode plates 8, 8' and 9.9', and efficiently transfers the excited gas to the fabric. It is designed to have an effect on

The above is the configuration of this embodiment. Next, the operation will be described. First, the winding shaft 6 on which the long fabric 2 is wound.
Or 7 is set in the reactor 1, the tip of the fabric is hung on the other winding shaft 7 or 6, and the fabric 2 is placed on the other winding shaft.
The reactor 1 is sealed by closing the lid 5. Next, the intake ducts 11 and 11'
The degree of vacuum in the reactor 1 is maintained at 0.1 to 10 Torr, preferably 0.5 to 10 Torr, by driving a vacuum bomb f (not shown) connected to the reactor 1 and supplying gas from gas nozzles 10 and 10'.
2(6) The TorrKH is kept constant, and then a high frequency wave, for example 13.56 MHz, is supplied to the electrode plate from a high frequency power source to generate low temperature plasma. Next, the winding shaft is driven to remove the fabric 2.
is transferred between both electrode plates, that is, in a low-temperature Zolazma atmosphere. In this way, when the textile is transferred into a low-temperature plasma atmosphere, the low-temperature plasma gas particles permeate between the fibers from both the front and back surfaces of the fabric 20, and the low-temperature nolasma acts even on the inner core of the fabric. Some of the impurities contained in both surfaces and the inner core of the fiber and the sizing agent applied to the fibers are decomposed and some of them become hydrophilic and become easily soluble in water. As the processing conditions for generating the low-temperature plasma, for example, power, gas type, gas flow rate, processing time, etc., can be appropriately selected depending on the quality of the fabric to be processed and the processing purpose.

In the above embodiment, the reactor 1 was of a patch type, but as shown in FIG. It is also possible to carry out double-sided plasma treatment of textile products continuously using a reactor equipped with and 14.

As described above, the present invention includes a reactor that can maintain a vacuum inside, a first electrode pair that faces each other across a transfer path for textile products to be transferred within this reactor, and this first Ffll electrode pair. a second pair of electrodes adjacent to each other in the direction of the transport path of the textile product; a first gas nozzle that faces the first pair of electrodes and injects gas toward the pair of electrodes; , e, a first intake duct facing the first gas nozzle, a second intake duct adjacent to the first gas nozzle in the textile product transfer direction, and a transfer path for the second intake duct. a second gas nozzle sandwiched and opposed to each other, a paqueem mechanism for maintaining the inside of the reactor in vacuum, and a gas supply means for supplying gas into the reactor;
This apparatus is a low-temperature plasma processing apparatus for textile products that is equipped with a power supply means for generating low-temperature nolasma between both pairs of electrodes. The low-temperature plasma acts even on the inner core, thereby providing an effect that effective plasma treatment can be performed over the entire front and back surfaces of the fabric, and even on the inner core. Furthermore, according to the present invention, various treatments can be performed on textile products in a low-temperature plasma atmosphere using extremely small amounts of thermal energy, water resources, or chemical solutions compared to conventional methods. Another advantage is that the treatment can be carried out economically and quickly without causing waste liquid pollution.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings all show embodiments of the low-temperature plasma processing apparatus according to the present invention, and FIG. 1 is an explanatory diagram showing the first embodiment.
FIG. 2 is an explanatory diagram showing the second embodiment. 1.1'...Reactor 2...Fabric 3.4 - Opening 5... Lid 6.7 - Fabric winding shaft 8.9... Electrode plate 10.10
'...Gas nozzle 11.11'...Intake duct 12... [''13...Inlet side seal mechanism 14...Outlet side seal mechanism (9) Fig. 1

Claims (1)

[Claims] A reactor that can maintain a vacuum inside, a first pair of electrodes facing each other across a transfer path for textile products to be transferred in the reactor, and a transfer path for textile products to be connected to the first electrode pair. a second pair of electrodes adjacent to each other in the direction; a first gas nozzle that faces the first pair of electrodes and injects gas toward the pair of electrodes;
an intake duct, a second intake duct adjacent to the first gas nozzle in the textile product transfer direction, and a second intake duct opposite the second intake duct with a transfer path in between.
a gas nozzle, a pachyme mechanism for maintaining the inside of the reactor in vacuum, a gas supply means for supplying gas into the reactor, and a power supply means for generating low-temperature plasma between both pairs of electrodes. A low-temperature plasma processing apparatus for textile products, characterized by comprising: