JPS588183A - Hydrophilic process of polyester type dyed fabric - 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 processing method for imparting hydrophilicity to a dyed polyester fabric.

Further, in detail, a gas mixture containing 100% oxygen or warm nitrogen was defsumed by high frequency under a reduced pressure of 0.1410 psi, and the gas was brought out of the plasma atmosphere and dyed under normal conditions. By processing diester dyed fabrics, various properties such as a decrease in strength, weight change, and a decrease in the durability of dyed fabrics are maintained (/l).
Aesthetics: This relates to a processing method that greatly improves the wettability of the surface of dyed fabrics, that is, imparts hydrophilicity to dyed polyester fibers.

Conventionally, various methods have been used to impart hydrophilicity to dyed fabrics. A method of attaching a hydrophilic vinyl monomer to a polyester surface, a method of graph F polymerization of a hydrophilic vinyl monomer to a polyester surface, etc. have been used.

However, these methods have disadvantages due to the formation of hydrophilic polyY- on the polyester A/surface, such as poor washing durability, decrease in color fastness, especially dampness, and hard texture. . Water! There may also be disadvantages such as the occurrence of damage. Recently, it has been developed to make plastic surfaces hydrophilic by placing plastics such as polyethylene and polyester μ in a low-temperature plasma atmosphere of oxygen-containing gas.

However, when ylt9 aesthetic dyed fabrics are placed in an atmosphere where oxygen and low-temperature plasma is generated, the polyester fibers may fade due to light in the plasma atmosphere and turn into ash due to rapid oxidation.

In other words, problems such as surface roughening, migration of dye due to heat, shrinkage of polyester fibers, and hardening of texture may occur depending on the irradiation conditions, so it is difficult to control the conditions for processing dyed polyester fabrics in practice. Extremely steep.

The present invention was made in view of the current situation, and yj/9
Ester-based Dyed Fabric Dyed Fabric 9 The purpose is to impart hydrophilicity without causing a decrease in strength, a decrease in dyeing firmness, a change in texture, etc.

In order to achieve this object, the present invention has the following configuration.

That is, in the present invention, oxygen or a mixed gas containing oxygen is heated to 0.
This is a method for hydrophilizing polyester fabric, which is characterized by generating plasma by high frequency treatment under reduced pressure of 1 to 100 Torr, and guiding this gas out of the plasma generation atmosphere to process the dyed polyester fabric.

Below, nine aspects of the present invention will be explained in detail.

The gas used in the present invention includes oxygen, or oxygen and other gases such as helium, inert gases such as argon, nitrogen,
Use a mixed gas such as water vapor or carbon dioxide.

The pressure inside the processing equipment is suitably 0.1 to 100 Torr, more preferably 0.5 to 5 Torr.

The reason for limiting the pressure inside the processing equipment in this way is 100T.
If the temperature exceeds orr, it will be difficult to generate low-temperature plasma, the life of activated oxygen will be shortened, and the plasma atmosphere I! This is because the temperature of the air becomes too high and may have a negative effect on the polyester dyed fabric, and if the temperature drops below 0.1 Torr, the concentration of active oxygen necessary for the reaction becomes too low and the treatment takes a long time. This is because it is not practical because it requires only one force.

The frequency of the high frequency wave that generates plasma is 1 to 500.
Any frequency within the Mug range can be used depending on the selection of conditions. however,! According to regulations such as the Radio Law, J
Hg.

40.68 MHz, 915 MHz! $, 24
50 MHz.

When high frequency is applied to oxygen or oxygen mixed gas 1c O, 1 to 1001- under reduced pressure, the gas molecules inside are excited and plasma is generated.Then, the gas in which plasma is generated is guided outside the high frequency irradiation atmosphere. - Contacting this gas with a polyester dyed fabric. In this way, polyester dyed fabric can be parented.

According to the method of the present invention, it is possible to make a polyester dyed fabric hydrophilic without causing a decrease in strength or a change in texture.

In addition, according to the method of the present invention, it is also possible to improve the soil removal properties (dirt removal) of /y aesthetic dyed fabrics.
Furthermore, surprisingly, according to the method of the present invention, the dyeing firmness of the dyed fabric can be significantly improved.

One of the features of the present invention is that the polyester fabric that has been dyed first is subjected to plasma treatment, and even if the polyester fabric is dyed after plasma treatment, the same effect as the present invention cannot be obtained. The present invention will be explained below.

FIG. 1 is a sectional view showing an example of a processing apparatus for carrying out the method of the present invention.

The processing device (to) is a device that can withstand a vacuum of 0.1 To, and the fabric (1) passes through the guide loaf to reach the processing section, where it is fed with the dewsma atmosphere gICtlh, etc. After being diluted with activated oxygen, it is wound up in a nine winding section (3).

Oxygen or a gas mixture with oxygen is pumped from the cylinder (4).
S), passes through a conduit (6), is quantified by a flowmeter (7), and reaches a plasma generation section (8).

The plasma generating section ($) is excited by high frequency waves sent from the high frequency generator (9) and generates plasma. (
&I? 15. In the case of 2450 MHs, it is a -4 wave tube that sends high frequency from a high frequency generator, and irradiates high frequency energy from ***(b). Also, IL56,
In the case of 27.1240.68 MHz, Zeng is a wire (
3) High-frequency energy is irradiated from an electrode provided inside or on the outer layer.

The gas that generated defusma is sent from the blowing nozzle (b) to the surface of the polyester dyed fabric (1') where it reacts.
After the reaction, the gas passes through the suction nozzle μ (to), the conduit (to), and is discharged out of the system by the vacuum pump (b).

9 The polyester-based dyed fabric as used in the present invention refers to woven fabrics and non-woven fabrics using polyethylene terephthalate fibers or copolymerized fibers of polyethylene terephthalate and a second component, which can be fluorescently bleached, dyed, or printed using conventional methods. means something that has been done.

Next, examples will be described, but the present invention is not limited thereto.

Example 1 A knitted ester long fiber fabric that had been scoured under normal conditions, then fluorescently dyed and fluorescently bleached was treated under the following treatment conditions 11C. The results of comparing the fluorescence and hydrophilicity before and after treatment are shown in Table 1. As is clear from Table 1, hydrophilicity could be imparted without deterioration of fluorescent white skin.

Processing conditions 1 Gas Oxygen 100g Pressure
1 High shoulder wave for Toke defsuma generation 2450 MHz, 5 a Temperature SOC time
5 minutes Table 1 The measurement method in Table 9 was carried out by the following method ζ.

(1) Hydrophilic JIS L-1096 (2) Fluorescence spectrophotometer Macbeth-2020L value. Regarding the white skin, we checked the difference before and after processing by five people who judged the meat limit, but no difference was found.

Example 2 A knitted fabric using a cationic dyeable jelly ester fiber processed yarn was refined under normal conditions and then dyed in orange with a cationic dye under normal conditions.

Next, under the following processing conditions 2, the gas that generated low-temperature dessma was led out of the deosma atmosphere, and this was able to impart hydrophilic properties to the dyeable polyester fabric W. To 51, change the number of N phrase to 51. Prefecture 11: Basic.

Processing conditions 2 Gas Air pressure 2To is plasma generation high frequency 2450 MHICI DI temperature
70℃ time
10 minutes Table 2 The measurement method in Table 1 was carried out by the following method.

(1) Hydrophilicity JIS L-1096 (ri hue The difference between before and after processing was judged by five meat workers. The difference was determined, but no difference was found. (3) Dyeing toughness Nikko prefecture prison rating [8L] -0842 Washing degree JIS L-0844 Friction prefecture JIS L-084,

[Brief explanation of the drawing]

FIG. 1 is a side sectional view showing an example of a processing apparatus for carrying out the method of the present invention. In the figure, 1 (1) (1+) is the fabric to be processed, and (9) is the high frequency generator. (8) is a Pfusma generation part, (B) is a blow-off nozzle for the gas generated by plasma, and (B) is a suction nozzle for the gas that has undergone reaction. Patent Applicant: Unitika Co., Ltd. Amendment to Drawing Procedures (Voluntary) 1σ Month, 1981 1 & 1 Commissioner of the Patent Office 1, Indication of Case Patent Application No. 107819/1981 2 Name of Invention I Lieste W% Parent Tree of Dyed Fabric Processing method 3, relationship with the case of the person making the amendment Patent applicant address 1-50 Higashihonmachi, Amagasaki City Name (450) Unitika Co., Ltd. Address 4-chome Kitakutabe-cho @68, Higashi-ku, Osaka City Name
Unitika Co., Ltd. Patent Department

Claims (1)

[Claims] (1) Oxygen or a mixed gas containing oxygen at 0.1 to 100
A method for hydrophilizing polyester fabric, which comprises generating defusma by high frequency treatment under a reduced pressure of Torr, and guiding this gas out of the atmosphere in which deutsuma is generated to process it into a polyester dyed fabric.