KR20200086209A - Method of surface modified functional fiber by cold plasma treatment - Google Patents

Abstract

Provided is a method for manufacturing a functional fiber. Specifically, one aspect of the present invention is a method for manufacturing a functional fiber surface-modified by a low-temperature plasma device, comprising the following steps: (a) preparing a fiber bundle; (b) unwinding fibers from the fiber bundle and introducing the same into a reactor; and (c) modifying the surface of the fiber with a plasma generating device at an entry portion of the reactor, wherein the internal temperature of the reactor is 1 to 300°C, and a low-temperature plasma treatment time is 1 to 180 seconds.

Description

Manufacturing method of functional fiber modified by low temperature plasma treatment {METHOD OF SURFACE MODIFIED FUNCTIONAL FIBER BY COLD PLASMA TREATMENT}

The present invention relates to a method for manufacturing a functional fiber, and more particularly, to a method for manufacturing a functional fiber including an antibacterial or deodorizing function by surface modification through low temperature plasma treatment.

Recently, the improvement of living standards and technological development have diversified consumers' desire for textile products. For example, water-repellent fiber, water-repellent electrostatic property, water-absorbing processed fiber, fragrance-directed fiber, permeation to prevent sweat from passing through and rainwater And waterproofed fibers.

Fibers having these characteristics usually use a large amount of chemicals and water, resulting in a large amount of wastewater and harmful gases, causing fatal damage to the human body, and also increasing the environmental burden to process them.

Accordingly, a variety of environmentally friendly fiber surface modification methods are required without generating waste water or harmful gases, and accordingly, plasma treatment methods are in the spotlight.

However, in the case of the conventional plasma treatment method, when modifying and strengthening the fiber surface, plasma may not be stably generated due to changes in vacuum degree, resistance, surface area, temperature, etc. of the vacuum chamber, and the final surface modified fiber may be damaged. there is a problem.

Therefore, there is a need to develop a method for imparting a function to a fiber in a line where the fiber is not damaged.

The present invention is to solve the problems of the prior art described above, the object of the present invention relates to a method of manufacturing a fiber including an antibacterial or deodorizing function, and more specifically, surface modification through low temperature plasma treatment to prevent antibacterial or deodorizing It is to provide a method for manufacturing a functional fiber including a function.

In one aspect of the present invention, there is provided a method for manufacturing a surface-modified functional fiber using a functional fiber manufacturing apparatus, comprising: (a) preparing a fiber bundle; (b) a step in which fibers are unwound from the fiber bundle to enter the reactor; And (c) the step of modifying the surface of the fiber through the plasma generating device of the reactor entry portion; including, the internal temperature of the reactor is 1 ~ 300 ℃, low-temperature plasma treatment time is 1 ~ 180 seconds, functional Provides a method for manufacturing fibers.

In one embodiment, the fiber may include an antibacterial or deodorant function.

In one embodiment, the functional group of the fiber surface modified in step (c) in the group consisting of hydroxy group (-OH), carboxy group (-COOH), peroxy acid (-COOOH) and combinations of two or more of them It may be the selected one.

In one embodiment, the fiber is polyester (PET), polyethylene (PE), spandex, polypropylene (PP), nylon, cotton, acrylic, aramid, carbon, vinylon, vinion, xylon, silk, cashmere, It may be one selected from the group consisting of pulp and basalt.

In one embodiment, the gas in the plasma device may be one selected from the group consisting of oxygen, water vapor (H ₂ O), and argon neon.

In one embodiment, the fiber may further include at least one selected from the group consisting of silicon, silicon oxide, germanium, germanium oxide, zinc oxide, magnesium oxide, aluminum oxide, and zeolite.

In one embodiment, the temperature inside the reactor may be 5 to 150°C lower than the melting point of the fiber.

Another aspect of the present invention is a first fiber bundle; A second fiber bundle; And a reactor having an inlet portion connected to the first fiber bundle and an outlet portion connected to the second fiber bundle, wherein the reactor is provided with a low temperature plasma generator and a gas outlet, and provides a functional fiber manufacturing apparatus. .

In one embodiment, fibers are unwound from the first fiber bundle in the direction of the second fiber bundle, and the low temperature plasma generating device may be located upstream of the gas outlet based on the traveling direction of the fiber.

In one embodiment, the surface of the fiber wound on the second fiber bundle is selected from the group consisting of hydroxy group (-OH), carboxy group (-COOH), peroxy acid (-COOOH), and combinations of two or more of these. Can be modified into one.

In one embodiment, the fiber wound on the second fiber bundle may have antibacterial and deodorizing functions.

According to an aspect of the present invention, the surface may be modified through low temperature plasma treatment to implement an antibacterial or deodorant function without adding a separate material.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be deduced from the configuration of the invention described in the detailed description or claims of the invention.

Figure 1 shows a method of manufacturing a surface-modified functional fiber using a low-temperature plasma according to an aspect of the present invention.
2 is a schematic diagram of a low temperature plasma device according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail. However, the present invention may be implemented in various different forms, and thus is not limited to the embodiments described herein.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another member in between. . Also, when a part “includes” a certain component, this means that other components may be further provided instead of excluding other components, unless specifically stated otherwise.

In one aspect of the present invention, there is provided a method for manufacturing a surface-modified functional fiber using a functional fiber manufacturing apparatus, comprising: (a) preparing a fiber bundle; (b) a step in which fibers are unwound from the fiber bundle to enter the reactor; And (c) the step of modifying the surface of the fiber through the plasma generating device of the reactor entry portion; including, the internal temperature of the reactor is 1 ~ 300 ℃, low-temperature plasma treatment time is 1 ~ 180 seconds, functional Provides a method for manufacturing fibers.

As used herein, “low temperature plasma” is a plasma that prevents thermal deformation due to thermal contact in the process, and consists of types such as glow, corona, equilibrium arc, dusty, gliding, and specifically, plasma treatment, plasma grafting. And plasma polymerization.

The gas used for generating the plasma may be one selected from the group consisting of oxygen, water vapor (H ₂ O), and argon neon, and preferably oxygen or water vapor. Since argon and neon are inert gases, no chemical reaction is involved during plasma treatment, and hydrogen can be removed by sputtering due to physical inelastic collisions, and thus can be used for the purpose of generating surface radicals.

On the other hand, water vapor (H ₂ O) and oxygen plasma, unlike the inert gas, it can be said that the chemical mechanism is predominant, and as an oxidizing gas, it is possible to convert functional groups by oxidizing the fiber surface.

As a method of surface modification through the low temperature plasma treatment, it is advantageous to use an oxidizing gas, and when using the oxidizing gas, water vapor (H ₂ O) and oxygen plasma, water vapor (H ₂ O) and oxygen plasma are used. It can be adsorbed on the surface and have a relatively excellent antibacterial or deodorizing function.

In addition, in the case of the low-temperature plasma treatment according to the inert gas, physical surface modification is mainly performed, and in the case of oxidizing water vapor (H ₂ O) and oxygen, chemical surface modification is mainly performed, so the process may be different.

Specifically, in general, the energy of the low temperature plasma is about 15 eV, which corresponds to energy capable of dissociating the organic compound. In particular, it is well known that when argon and neon plasma are treated on a polymer surface made of fibers, chemical bonds in the molecule are destroyed by physical sputtering of Ar ⁺ or Ne ⁺ ions, and reactions mainly removing hydrogen atoms occur.

On the other hand, the chemical surface modification causes a reaction such as PH(polymer)+O→P·+·OH due to the chemical action of oxygen atoms in addition to ion bombardment, and it can be seen that it is more advantageous than the physical surface modification. .

At this time, the generated radicals may remain isolated, or radicals may react with each other to form a crosslink, and are exposed in the air to generate polar groups such as a hydroxy group or a carbonyl group.

The low-temperature plasma can overcome the problem of changing the physical properties of the conventional fiber itself, and is limited to only the micron depth of the fiber surface, without changing the overall physical properties, and can only provide a function by modifying the surface of the fiber. .

The low temperature plasma may be performed in a vacuum or atmospheric pressure state, and preferably in an atmospheric pressure state.

First, when the low-temperature plasma is an atmospheric low-temperature plasma, a technology for generating a low-temperature plasma while maintaining the pressure of the gas from 100 Torr to 760 Torr (atmospheric pressure) or higher. , Since there is no separate pumping time, and it can be processed in-line, productivity can be maximized, and it can be suitably used for surface modification of materials.

On the other hand, when the low-temperature plasma is a vacuum low-temperature plasma, the technology that generates a low-temperature plasma by maintaining the pressure of the gas below 100 Torr, maintains a stable glow discharge state in a steady state and minimizes the damage of charged particles to the material, thereby reducing the process. It can be done.

In the present specification, “fiber” is a solid that is at least 100 times longer than a diameter or width and is thin so that it cannot be directly measured with the naked eye, and is a fiber, a yarn made of the fiber, or a fiber. It means a word that encompasses all textiles.

The functional group of the fiber surface modified in step (c) is one selected from the group consisting of hydroxyl groups (-OH), carboxy groups (-COOH), peroxy acids (-COOOH), and combinations of two or more of these on the functional fiber surface. Can be

Preferably, in the case of plasma treatment using a fiber yarn, a reaction in which hydrogen is oxidized on the surface of the fiber yarn may be exhibited, and the reaction process is as shown in Reaction Formula 1 below.

[Scheme 1]

Fiber yarn-H + low temperature plasma → Fiber yarn-C(O)OOH + Fiber yarn-C(O)OH + Fiber yarn-OH

In addition, when the plasma treatment using the fiber fabric, it may represent a reaction in which hydrogen is oxidized on the surface of the fiber fabric, the reaction process is as shown in Scheme 2 below.

[Scheme 2]

Textile Fabric-H + Low Temperature Plasma→ Textile Fabric-C(O)OOH + Textile Fabric-C(O)OH + Textile Fabric-OH

That is, when the fiber yarn or the textile fabric is subjected to a low temperature plasma treatment, a functional functional group is introduced on the fiber surface, and the antibacterial or deodorizing function of the fiber may be increased through the low temperature plasma treatment.

The thickness of the fiber yarns and textile fabrics is an indirect method of indicating the thickness, and may also be represented by a number representing a ratio of weight to a certain length or vice versa, for example, denier or tex. .

In general, the finer the fiber, the better the value of use and the higher the value of use. When manufacturing a fine and high-quality fiber yarn, it cannot be made without using thin fibers, and even in the case of coarse fibers, thin fibers ) Has a merit that the yarn or fiber fabric made by using a lot is smooth and soft to the touch.

The thickness of the fiber may be 10 to 50 denier, and preferably 20 to 40 denier. If the thickness of the fiber is less than 10 denier, there is a disadvantage that a large amount of fiber enters the fiber yarn (yarn) or fiber fabric (textile) with such a fiber is excessively thin, the fiber production efficiency may be lowered, if more than 50 denier , When the yarn (yarn) or fiber fabric (textile) manufacturing has a rough surface may deteriorate the quality of the fiber itself.

The fiber may include an antibacterial or deodorizing function, and the antibacterial or deodorizing function may be a function obtained by a surface-modified functional group through low temperature plasma treatment.

On the other hand, in order to double the antibacterial or deodorizing function in the present invention, a material for doubling the antibacterial or deodorizing function may be further included. These materials further include at least one selected from the group consisting of silicon, silicon oxide, germanium, germanium oxide, zinc oxide, magnesium oxide, aluminum oxide and zeolite, infection of bacteria and fungi in the fibers of the present invention, or It can effectively block proliferation, and may have an effect of removing odor. These materials can be used in the form of particles, preferably nanoparticles, and when weaving fibers, some of the materials are added on the raw material, or the coating solution in which the materials are dispersed on the fibers is applied or sprayed and then dried and introduced. You can, but are not limited to this.

Chemical formulas of the silicon oxide and germanium oxide may be SiO _x (0<x<2) and GeO _x (0<x<2), respectively.

When the fiber is subjected to a low-temperature plasma treatment, the superhydrophilicity of the fiber surface may be maintained for a long time, and the hydrophobic surface may be modified into a hydrophilic surface without additional light irradiation.

The fiber is made of polyester (PET), polyethylene (PE), spandex, polypropylene (PP), nylon, cotton, acrylic, aramid, carbon, vinylon, vinion, xylon, silk, cashmere, pulp, basalt It may be one selected from.

The polyester and nylon fibers are synthetic fibers, and among the synthetic fibers are strong fibers that are most resistant to heat. It does not wrinkle well, and has the advantage of maintaining its shape due to its low elasticity. It absorbs little water, so it dries quickly after washing, and may have no deterioration or discoloration even after prolonged exposure. In addition, it is strong against chemicals, and has little damage from insects, worms, and bacteria, but it may be a fiber that is slightly less antibacterial because it has low hygroscopicity, generates static electricity, makes it difficult to dissipate into the body when worn, and dissipates moisture in the body into the outside air.

The polypropylene (PP) and polyethylene (PE) fibers are polyolefin-based fibers, and have a high specific gravity, so they are lightweight, hardly absorb moisture, and are weak to heat and ultraviolet light and may not be suitable for use as sole fibers. However, it may be an advantage that there are no bacterial factors.

The cotton fiber is a representative cellulose-based fiber, and is known as a natural fiber together with wool. Cellulose obtained from cotton island is a main component vegetable fiber, and it has good hygroscopicity, so it absorbs sweat or pollution quickly, making it comfortable, and does not generate static electricity. It does not cause strength deterioration and fiber damage even in water, and is strong in alkali, so it can be washed with a weakly alkaline synthetic detergent and withstands high temperatures.

The acrylic fiber is an economical fiber that can be obtained inexpensively as a raw material, acrylonitrile, has excellent weather resistance and does not easily cause wrinkles.

The aramid fiber is very strong in heat resistance and non-burning properties, and has the advantage of less generation of toxic gases. In addition, thanks to its advantages such as heat resistance, high strength, high elasticity, and low shrinkage, it can be used to manufacture various molded products. In addition, it is possible to manufacture fiber-reinforced plastic (FRP), which is a composite material that has a high strength to weight and very strong corrosion resistance.

The carbon fiber is a fiber composed of a long chain of molecular chains of numerous carbon atoms. The carbon fiber has a fairly thin diameter of about 10 µm, but has high tensile strength and stiffness, excellent resistance to high temperatures and chemicals, and low thermal expansion. In addition, carbon fiber reinforced polymer (CFRP), which is lighter than metal and has superior tensile strength and elastic modulus, can be produced by mixing with epoxy.

The vinylon is a brand name of a polyvinyl alcohol-based synthetic fiber, has good hydrophilicity, hygroscopicity, and heat retention, is resistant to acids and alkalis, and has properties and texture close to cotton. Although slightly inferior to nylon, it may be suitable for blending due to its high chemical and friction resistance.

The xylon fiber is a synthetic fiber, and has the highest level of tensile strength and elastic modulus among organic fibers, which is 10% lower in weight than carbon fiber and is a lightweight fiber.

The silk fiber has good hygroscopicity and is resistant to high temperatures. However, there is a disadvantage that it is well crumpled like the cotton fiber, and water resistance is poor as a raw material of wood, and when wet with water, strength and elasticity may be reduced and contraction may occur.

The cashmere fiber is a natural fiber, and its durability is slightly lower than that of wool, but its elasticity, elasticity, and gloss are relatively excellent. In addition, the fiber is light and has a soft and warm characteristic.

The pulp fiber is obtained from coniferous trees, hardwoods, waste paper, and non-wood systems, and can be largely divided into three stages, such as wood processing, pulping, and pulp purification, and can be produced through chemical or mechanical pulp.

The basalt fiber means that the basalt is melted at a high temperature and extracted as a fiber. Since the basalt has a low raw material value, the production cost is lower than that of the carbon fiber. In addition, the basalt is porous with many voids and contains a lot of calcium.

The inside temperature of the reactor may be different depending on the type of the fiber used, and the inside temperature of the reactor may be 5 to 150°C lower than the melting point of the fiber. At this time, the temperature difference between the reactor inner temperature and the fiber melting point is 5°C or higher, 25°C or higher, or 50°C or higher, and may be 150°C or lower, 125°C or lower, or 100°C or lower. If it is outside the above range, it may be difficult for the fiber surface modification to occur efficiently, and damage to the fiber may occur.

2 is a schematic diagram of an apparatus for manufacturing functional fibers according to an embodiment of the present invention. Referring to FIG. 2, an apparatus for manufacturing functional fibers according to an aspect of the present invention includes a first fiber bundle 110; A second fiber bundle 110; And a reactor 120 provided with an inlet connected to the first fiber bundle and an outlet connected to the second fiber bundle, wherein the reactor is provided with a low temperature plasma generator 130 and a gas outlet 140. Can.

The apparatus for manufacturing the functional fiber of the present invention includes first and second fiber bundles 110 in which the fibers 111 are wound, preferably, the fiber bundles 110 are fiber yarns or fiber fabric bundles 110 Can be In addition, the fiber yarn or the textile fabric bundle 110 may be wound in a cylindrical shape, but is not limited thereto.

The fiber bundle 110 is unwound in the fiber 111 state and enters the reactor 120, and may modify the surface of the fiber 111 through the low temperature plasma generator 130. The low temperature plasma generator 130 may be installed to have an angle of 0 to 75° with the direction of the fiber 111 to generate a plasma flame 131 in the direction of the fiber 111.

The fibers 111 are unwound from the first fiber bundle in the direction of the second fiber bundle, and the low temperature plasma generating device may be located upstream of the gas outlet based on the traveling direction of the fibers. When the plasma generator 130 is located upstream of the gas outlet, it can function to flow the plasma flame 131 in one direction.

The surface of the fiber 111 wound on the second fiber bundle is modified to one selected from the group consisting of hydroxy group (-OH), carboxy group (-COOH), peroxy acid (-COOOH), and combinations of two or more of these. Can.

The fiber 111 wound on the second fiber bundle may have antibacterial and deodorizing functions.

Hereinafter, embodiments of the present invention will be described in detail.

Examples and comparative examples

While rotating the fiber yarn or the textile fabric of Table 1 in the bundle (110) state, maintaining the internal temperature of the reactor 120 in the range of 50 ~ 300 ℃, 5 ~ 150 ℃ lower than the melting point of the fiber yarn or textile fabric Set and fix the plasma output density in the plasma generator 130 to 2.0 W/cm ² . As a high-frequency induction heat plasma, a frequency of 13.56 MHz, which is a normal frequency, is used, and in the atmospheric pressure state, plasma is generated while adding 200 sccm of high-purity oxygen (O ₂ , 99%) using a plasma generator to generate a plasma. Perform low-temperature plasma.

A functional fiber yarn or fiber fabric was prepared by modifying the surface of the fiber yarn or fiber fabric of each example with low temperature oxygen plasma for 0 seconds (control), 5 seconds, 30 seconds, 60 seconds, 120 seconds, and 180 seconds.

division Fiber yarn Textile Example 1-1 30 Denia PET - Example 1-2 - 30 Denia PET Example 2-1 30 Denia PE - Example 2-2 - 30 Denia PE Example 3-1 30 Denia Spandex - Example 3-2 - 30 Denia Spandex Example 4-1 30 Denia PP - Example 4-2 - 30 Denia PP Example 5-1 30 denier nylon - Example 5-2 - 30 denier nylon Example 6-1 30 Denia Cotton - Example 6-2 - 30 Denia Cotton Example 7 acryl - Example 8 Aramid - Example 9 carbon - Example 10 Vinylon - Example 11 Vinion - Example 12 Xylon - Example 13 Dog - Example 14 Cashmere - Example 15 pulp - Example 16 basalt -

Example 1-3

Fibers were prepared in the same manner as in Example 1, except that 3 parts by weight of silicon nanoparticles were added on the fibers.

Example 1-4

Fibers were prepared in the same manner as in Example 1-1, except that the plasma gas was changed to high purity argon (Ar, 99%).

Comparative Example 1-1

Fibers were prepared in the same manner as in Example 1-1, except that the internal temperature of the reactor was changed to 400°C.

Comparative Example 1-2

Fibers were prepared in the same manner as in Example 1-1, except that the internal temperature of the reactor was changed to 20°C.

Experimental Example 1: Antibacterial function according to plasma treatment time

The fiber yarns or textile fabrics prepared by the above Examples and Comparative Examples were tested for antibacterial performance against bacteria A (Staphylococcus Aureus ATCC 6538) or bacteria B (Klebsiella pneumoniae ATCC 4352) according to the test method of KSK 0693:2016. It was expressed as a reduction rate, and the results are shown in Tables 2-5.

Bacterial A, bacteriostatic reduction rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-1 12 30 68 >99 >99 <10 Example 1-3 18 42 75 >99 >99 <10 Example 1-4 11 27 65 >99 >99 <10 Example 2-1 11 28 72 >99 >99 <10 Example 3-1 10 35 78 >99 >99 <10 Example 4-1 9 26 60 85 >99 <10 Example 5-1 10 40 80 >99 >99 <10 Example 6-1 10 35 87 >99 >99 <10 Example 7 13 80 80 >99 >99 <10 Example 8 13 42 80 >99 >99 <10 Example 9 10 43 82 >99 >99 <10 Example 10 11 38 85 >99 >99 <10 Example 11 13 40 80 >99 >99 <10 Example 12 10 36 79 >99 >99 <10 Example 13 12 40 78 >99 >99 <10 Example 14 11 29 86 >99 >99 <10 Example 15 13 30 80 >99 >99 <10 Example 16 12 32 87 >99 >99 <10 Comparative Example 1-1 13 34 71 >99 >99 <10 Comparative Example 1-2 5 9 14 35 43 <10

Bacterial B, bacteriostatic reduction rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-1 12 30 68 >99 >99 <10 Example 1-3 18 42 75 >99 >99 <10 Example 1-4 11 27 65 >99 >99 <10 Example 2-1 11 28 72 >99 >99 <10 Example 3-1 10 35 78 >99 >99 <10 Example 4-1 11 20 45 80 >99 <10 Example 5-1 10 40 80 >99 >99 <10 Example 6-1 10 35 87 >99 >99 <10 Example 7 13 80 80 >99 >99 <10 Example 8 13 42 80 >99 >99 <10 Example 9 10 43 82 >99 >99 <10 Example 10 11 38 85 >99 >99 <10 Example 11 13 40 80 >99 >99 <10 Example 12 10 36 79 >99 >99 <10 Example 13 12 40 78 >99 >99 <10 Example 14 11 29 86 >99 >99 <10 Example 15 13 30 80 >99 >99 <10 Example 16 12 32 87 >99 >99 <10 Comparative Example 1-1 13 34 71 >99 >99 <10 Comparative Example 1-2 5 9 14 35 43 <10

Bacterial A, bacteriostatic reduction rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-2 10 25 65 >99 >99 <10 Example 2-2 11 32 68 >99 >99 <10 Example 3-2 10 41 74 >99 >99 <10 Example 4-2 8 32 65 >99 >99 <10 Example 5-2 9 38 75 >99 >99 <10 Example 6-2 13 46 78 >99 >99 <10

Bacterial B, bacteriostatic reduction rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-2 11 25 65 >99 >99 <10 Example 2-2 13 32 68 >99 >99 <10 Example 3-2 10 41 74 >99 >99 <10 Example 4-2 12 30 61 >99 >99 <10 Example 5-2 9 32 75 >99 >99 <10 Example 6-2 11 43 78 >99 >99 <10

Referring to Tables 2 to 5, in the case of low-temperature plasma treatment (Example), the bacteriostatic reduction rate increased rapidly, and all of the antibacterial activity was excellent. Particularly, in the case of the fiber yarn, the bacteriostatic reduction rate of 80% or more can be confirmed when the plasma treatment time is 120 seconds, and in the case of the textile fabric, the bacteriostatic reduction rate is shown to be 65% or more from 60 seconds of the plasma treatment time, and the low temperature plasma treated fiber yarn and fiber The fabric (example) had better antimicrobial activity than the case (control).

In addition, it can be seen that when the nanoparticles are added to the fiber yarn and the textile fabric (Example 1-3), the bacteriostatic rate is slightly higher for the bacteria A and B compared to the case where the nanoparticles are not (Example 1-1). , It was shown that the antibacterial function slightly increased compared to the case where the nanoparticles were not included.

When the gas in the plasma device was used as argon as an inert gas (Example 1-4), it was found that the rate of bacteriostatic reduction for bacteria A and B was slightly lower than when using oxygen (Example 1-1).

When the temperature in the reactor was 400°C (Comparative Example 1-1), the antibacterial function was found to be excellent compared to the 300°C example, but the fiber itself was damaged due to the temperature of the reactor.

In addition, when the temperature in the reactor is 20°C (Comparative Example 1-2), it is confirmed that the bacteriostatic reduction rate for bacteria A and B does not exceed 50% even during the 150-second plasma treatment because appropriate plasma treatment is not performed. It is interpreted that the antibacterial function is lowered.

Experimental Example 2: Deodorization function according to plasma treatment time

The fiber yarn or the textile fabric prepared according to the above example was put in a 1L Tedlar bag, respectively, and ammonia or acetic acid was added to 100 ppm at an internal humidity of 50±5%, and the content of gas after 1 hour with a control group without plasma treatment The analysis was shown in Tables 6-9.

ammonia
Deodorization rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-1 12 80 99 99 99 <5 Example 1-3 18 82 99 99 99 <5 Example 1-4 11 75 93 99 99 <5 Example 2-1 11 75 99 99 99 <5 Example 3-1 10 78 99 99 99 <5 Example 4-1 9 85 99 99 99 <5 Example 5-1 13 80 99 99 99 <5 Example 6-1 11 87 99 99 99 <5 Example 7 13 80 99 99 99 <5 Example 8 13 81 99 99 99 <5 Example 9 10 83 99 99 99 <5 Example 10 11 85 99 99 99 <5 Example 11 13 80 99 99 99 <5 Example 12 10 79 99 99 99 <5 Example 13 12 78 99 99 99 <5 Example 14 11 86 99 99 99 <5 Example 15 13 80 99 99 99 <5 Example 16 12 87 99 99 99 <5 Comparative Example 1-1 13 81 99 99 99 <5 Comparative Example 1-2 8 15 24 40 47 <5

Acetic acid
Deodorization rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-1 11 77 99 99 99 <5 Example 1-3 18 81 99 99 99 <5 Example 1-4 11 73 93 99 99 <5 Example 2-1 10 74 99 99 99 <5 Example 3-1 9 78 99 99 99 <5 Example 4-1 8 76 99 99 99 <5 Example 5-1 12 75 99 99 99 <5 Example 6-1 10 80 99 99 99 <5 Example 7 10 79 99 99 99 <5 Example 8 9 75 99 99 99 <5 Example 9 10 82 99 99 99 <5 Example 10 12 83 99 99 99 <5 Example 11 11 77 99 99 99 <5 Example 12 13 73 99 99 99 <5 Example 13 13 75 99 99 99 <5 Example 14 11 84 99 99 99 <5 Example 15 12 86 99 99 99 <5 Example 16 9 84 99 99 99 <5 Comparative Example 1-1 13 80 99 99 99 <5 Comparative Example 1-2 7 12 23 37 43 <5

ammonia
Deodorization rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-2 10 75 99 99 99 <5 Example 2-2 12 80 99 99 99 <5 Example 3-2 11 82 99 99 99 <5 Example 4-2 8 81 99 99 99 <5 Example 5-2 9 80 99 99 99 <5 Example 6-2 12 87 99 99 99 <5

Acetic acid
Deodorization rate (%) Plasma treatment time (sec) Control 5 30 60 120 150 Example 1-2 13 79 99 99 99 <5 Example 2-2 11 76 99 99 99 <5 Example 3-2 10 78 99 99 99 <5 Example 4-2 9 79 99 99 99 <5 Example 5-2 10 80 99 99 99 <5 Example 6-2 11 75 99 99 99 <5

Referring to Tables 6 to 9, in the case of low-temperature plasma treatment (Example), the deodorization rate rapidly increased, and all of the deodorization activity was excellent. Particularly, when the fiber yarn and the textile fabric have a plasma treatment time of 30 seconds, a deodorization rate of 75% or more can be confirmed, and when the fiber yarn and the fiber fabric have a plasma treatment time of 60 seconds, the ammonia and acetic acid deodorization rate appears to be 99%. Plasma-treated fiber yarns and textile fabrics (examples) had better deodorizing activity than those not (control).

In addition, it can be seen that the ammonia and acetic acid deodorization rate is slightly higher than when the nanoparticles are added to the fiber yarn and the textile fabric (Example 1-3), if not (Example 1-1). It was found that the deodorizing function slightly increased compared to the case without particles.

When using plasma gas as argon, which is an inert gas (Example 1-4), the deodorization rate does not show 99% even when plasma treatment is performed for 60 seconds compared to when using oxygen (Example 1-1). It was found that the deodorization rate fell slightly.

When the temperature in the reactor is 400°C (Comparative Example 1-1), the difference is insignificant compared to the 300°C example, but the deodorization rate for ammonia and acetic acid is rather excellent, but the fiber itself is damaged due to the temperature of the reactor Appeared.

In addition, when the temperature in the reactor is 20°C (Comparative Example 1-2), it is confirmed that the deodorization rate for ammonia and acetic acid does not exceed 50% even during the 150 second plasma treatment because proper plasma treatment is not performed. It is interpreted that the deodorizing function is deteriorated.

The above description of the present invention is for illustration only, and those skilled in the art to which the present invention pertains can understand that the present invention can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all modifications or variations derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present invention.

110: fiber yarn or textile fabric bundle
111: fiber yarn or textile fabric
120: reactor
130: low temperature plasma generator
131: plasma flame
140: gas outlet

Claims (11)

In the manufacturing method of the functional fiber surface-modified using the manufacturing device of the functional fiber,
(a) preparing a fiber bundle;
(b) a step in which fibers are unwound from the fiber bundle to enter the reactor; And
(c) the step of modifying the surface of the fiber through the plasma generator of the reactor entry portion; including, the inner temperature of the reactor is 1 ~ 300 ℃, low temperature plasma treatment time is 1 ~ 180 seconds, functional fiber Method of manufacturing. According to claim 1,
Method of manufacturing a functional fiber, the fiber comprises an antibacterial or deodorant function. According to claim 1,
Functional fiber having a functional group on the surface of the fiber modified in step (c) selected from the group consisting of hydroxy group (-OH), carboxy group (-COOH), peroxy acid (-COOOH), and combinations of two or more of these. Method of manufacturing. According to claim 1,
The fiber is made of polyester (PET), polyethylene (PE), spandex, polypropylene (PP), nylon, cotton, acrylic, aramid, carbon, vinylon, vinion, xylon, silk, cashmere, pulp, basalt A method selected from the method of manufacturing a functional fiber. According to claim 1,
The gas used for the generation of the plasma is oxygen, water vapor (H ₂ O), argon, one selected from the group consisting of neon, the method of manufacturing a functional fiber. According to claim 1,
The fiber further comprises at least one selected from the group consisting of silicon, silicon oxide, germanium, germanium oxide, zinc oxide, magnesium oxide, aluminum oxide and zeolite, a method for producing a functional fiber. According to claim 1,
Method of manufacturing a functional fiber, the temperature inside the reactor is 5 ~ 150 ℃ lower than the melting point of the fiber. A first fiber bundle;
A second fiber bundle; And
It includes; a reactor having an inlet connected to the first fiber bundle and an outlet connected to the second fiber bundle;
The reactor is equipped with a low temperature plasma generator and a gas outlet, a device for manufacturing functional fibers. The method of claim 8,
The fibers are unwound from the first fiber bundle in the direction of the second fiber bundle,
The low temperature plasma generating device is located upstream of the gas outlet, based on the direction of travel of the fiber, a device for producing a functional fiber. The method of claim 8,
Functional fiber modified with one surface selected from the group consisting of a hydroxy group (-OH), a carboxy group (-COOH), a peroxy acid (-COOOH), and a combination of two or more of these, the surface of the fiber wound on the second fiber bundle Manufacturing equipment. The method of claim 8,
A device for manufacturing a functional fiber, wherein the fiber wound on the second fiber bundle has an antibacterial and deodorizing function.

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