KR102152232B1 - Eco-friendly antibacterial fiber with improved deodorizing ability and its manufacturing method - Google Patents

Abstract

The present invention relates to an eco-friendly antibacterial fiber which is manufactured by including natural fibers manufactured through a method including enzyme and microbial treatment steps and artificial fibers manufactured from biodegradable materials, and to a manufacturing method thereof. The manufacturing method of the eco-friendly antibacterial fiber includes: (a) a soaking step; (b) a digestion step; (c) a cooling step; (d) a pre-treatment step; (e) a shaking culture step; (f) an eco-friendly natural fiber manufacturing step; (g) a biodegradable antibacterial artificial fiber manufacturing step; and (h) a blending step.

Description

Eco-friendly antibacterial fiber with improved deodorizing ability and its manufacturing method {ECO-FRIENDLY ANTIBACTERIAL FIBER WITH IMPROVED DEODORIZING ABILITY AND ITS MANUFACTURING METHOD}

The present invention relates to an eco-friendly antibacterial fiber and a method for producing the same, including natural fibers manufactured including enzyme and microbial treatment steps and artificial fibers manufactured from biodegradable materials.

Due to recent changes in life styles, denser living environments and advanced air-tightness, various bacteria and fungi are spreading more in people's living spaces.

In particular, bacteria and fungi can easily proliferate on the surface of fabrics such as absorbent articles and other hygiene products, clothing, etc., and this phenomenon is caused by skin diseases, deterioration of product quality due to fiber deterioration and discoloration, or the growth of microorganisms. May cause odor.

Therefore, attempts to solve the above problems by imparting antimicrobial properties to the fibers have been continuously made.

As a representative of such a method, a method of adding inorganic antibacterial agents such as silver and zinc-based and deodorant to fibers is widely used. For example, in US Patent No. 6,841,244, an inorganic compound containing copper, zinc, tin and/or silver is used. Disclosed is an antibacterial synthetic fiber comprising an antimicrobial agent. In addition, Japanese Laid-Open Application No. 2000-303250 proposes fibers to which catechins contained in tea leaf extracts and the like are added, and Japanese Laid-Open Application No. 2003-253559 proposes fibers to which rosemary essential oil or the like is added.

However, when silver ions (Ag ⁺ ) are used, a carrier such as zeolite is additionally required for its stability, and workability and product reliability (tensile strength, shrinkage, dyeing properties, etc.) in the manufacturing process There was a limitation that this could be lacking.

Meanwhile, due to the greenhouse effect caused by global warming, the average temperature of the earth's atmosphere has risen and environmental problems such as abnormal climates are continuously becoming an issue around the world. In the textile field, as well as efforts to preserve the environment, interest in eco-friendly textiles and technology development continues.

The definition of eco-friendly fibers refers to “fibers that are environmentally satisfactory and do not pose a threat or harmful to the environment”. The characteristics of eco-friendly fibers include features related to environmental preservation and purification, and features related to contributing to environmental improvement. Specifically, it does not cause pollution, has biodegradability, or is environment such as particulates and bacteria. It has the effect of blocking substances harmful to the material, replacing synthetic fibers, contributing to energy consumption reduction by weight reduction, or recycling waste.

U.S. Patent No. 6,841,244

It is an object of the present invention to provide an eco-friendly antibacterial fiber and a method of manufacturing the same, which are manufactured including enzyme and microbial treatment.

The eco-friendly fiber is characterized by reinforcing antibacterial, moisture-absorbing and deodorizing functions, and is characterized in that it has excellent biodegradation performance by using eco-friendly materials and biodegradable materials, thereby reducing the occurrence of environmental pollutants.

One aspect of the present invention is (a) the step of adding 10 to 20 times by weight of purified water to the hemp skin and banana stem inner skin cut into a certain size of 10 to 16 cm as an eco-friendly fiber material for 24 hours; (b) a cooking step of heating the eco-friendly fiber material after the above-described process at 120° C. for 1 to 5 hours; (c) cooling the material subjected to the cooking step by standing at 15° C. for 7 to 10 hours; (d) At least one enzyme selected from the group consisting of Flavourzyme, Alcalase, Protease and Neutrase was added to the cooled eco-friendly fiber material, and 24 at room temperature. A pre-treatment step left to stand for 48 hours; (e) 5 to 10 parts by weight of Bacillus subtillis , 5 to 10 parts by weight of Lactobacillus Rhamnosus , 5 to 8 parts by weight of Lactobacillus Rhamnosus , based on 200 to 300 parts by weight of the eco-friendly fiber material in which the pretreatment step is completed. Paracasei ( Lactobacillus paracasei ) 3 to 5 parts by weight and Micrococcus roseus ( Micrococcus roseus ) 1 to 5 parts by weight added, and shaking culture at 30 to 38 ℃ for 12 to 48 hours; And (f) adding 20 to 40 parts by weight of garlic peel extract to 200 to 300 parts by weight of the material for which the microbial treatment step has been completed, and culturing by shaking for 48 to 72 hours at 35 to 39°C. , Provides a method of manufacturing eco-friendly antibacterial fibers.

In addition, in the present invention, after the step (f) is completed, (g) biodegradants such as polylactic acid (PLA), polyglycolic acid (PGA), PCL (polycaprolactone, PCL), polybutylene succinate , PBS), PBAT (poly(butylenes adipate-co-terephthalate), PBAT) or a mixture of any one selected from among their copolymers alone or a mixture of two, and an extract derived from a natural product having an antibacterial effect After mixing to prepare a master batch, the step of preparing an artificial fiber using the master batch; may be prepared further including, but is not limited thereto.

Specifically, the extract derived from the natural product of the step (g) is myrrh ( Commiphora myrrha Holmes ), frankincense ( Boswellia Carterii ), gold and silver ( Lonicera japonica ), octagonal (八角, Illicium verum Hook.f.) and bongchul (蓬朮,) Curcuma zedoaria ) may be prepared including an extract, and more specifically, myrrh ( Commiphora myrrha Holmes ) 30 parts by weight, frankincense tree ( Boswellia Carterii ) 30 parts by weight, gold and silver ( Lonicera japonica ) 30 parts by weight, octagonal (八角, Illicium verum Hook.f.) 15 parts by weight and 10 parts by weight of bongchul (蓬朮, Curcuma zedoaria ) were mixed and extracted with hot water at 95°C for 3 to 4 hours using 80% ethanol, and then concentrated under reduced pressure. However, it is not limited thereto.

Hemp fibers can be produced from the cellulose fibers present in the hemp skin, and the hemp fibers include stems of hemp crops such as flax, jute, rapoma, blue hemp, red hemp, gumma, manila hemp, sisal hemp, and New Zealand hemp. It refers to a kind of vegetable fiber produced in a fibrous form after components such as pectin and lignin are removed from leaves through a refining process. In general, hemp is also called hemp or hemp, and hemp is an annual herb of the hemp family and grows in temperate and tropical regions. It is cultivated mainly for the purpose of textiles, and has been used habitually all over the world since the Paleolithic period, and has been used as a material for clothing and bedding in Korea since Gojoseon. Hemp is known to have antibacterial and anti-toxic functions that absorb and discharge moisture quickly, block UV rays, and inhibit mold, and is used to make ropes, nets, and tires in addition to fabrics because of its high strength and durability.

In addition, among natural-derived eco-friendly fibers, cellulose fibers include banana fibers using banana stem linings, coconut fibers using coconut fruit skins, and Korean paper fibers using mulberry pulp, and banana fibers are said to have moisture absorption and skin care effects. Is known.

In order to manufacture natural cellulose-based eco-friendly fibers derived from nature as described above, components such as pectin and lignin in the film interlocking with the cortex and fibers must be decomposed and removed, mainly after steaming or cooking them to remove them, and then lye (Na ₂ CO ₃ ) It had to go through a refining process that was treated with strong alkali chemicals such as caustic soda (NaOH).

However, such a refining method using strong alkaline chemicals affects not only the incomplete removal of pectin and lignin, but also the physical properties and functionality of natural eco-friendly fibers, and pollution problems caused by the discharge of industrial wastewater continue to be pointed out as a problem.

The eco-friendly fiber manufacturing method of the present invention described above is characterized in that it is possible to manufacture eco-friendly fibers derived from natural products without using caustic soda or lye at all.

In addition, by omitting the process of treating lye, it exhibits excellent antibacterial and deodorizing effects.

In addition, the eco-friendly fiber manufacturing method may further include a post-treatment process of immersing in hot water of 80° C. or higher containing a nonionic surfactant and maintaining for 30 minutes after the step (f) is completed.

Specifically, in the post-treatment process, raw materials that have undergone the refining process are immersed in hot water immediately after the refining process and maintained for a certain period of time, and in this case, a circulating high-pressure cleaning process using a cleaning solution containing a nonionic surfactant as needed. You can also impose. Any of the nonionic surfactants commonly used in this technical field may be used, for example, poly(oxyethylene) tridecyl ether, poly(oxyethylene) lauryl. Ether (Poly (oxyethylene) lauryl ether), poly (oxyethylene) stearyl ether (Poly (oxyethylene) stearyl ether) may be used, but is not limited thereto.

Specifically, after the post-treatment process, 5 to 10 parts by weight of 1% sodium hydroxide (NaOH), 1% bicarbonate (NaHCO ₃ ) and 1% sodium carbonate (Na ₂ CO ₃ ) were added to adjust the pH to 10 to 11, and then 1 It may be bleached at room temperature by adding to 3 parts by weight of 2.5% H ₂ O ₂ or bleaching for 60 to 80 minutes while heating at 65 to 95°C. However, this process is not an essential process but can be added as needed, and can be appropriately changed and applied as needed.

In addition, specifically, after the step (d) is completed, it may further include a sterilization and sterilization process maintained for 10 to 180 minutes at a pressure of 1 to 3 bar and a state of 80 to 300 °C before the start of step (e). have. This is to maximize the activity of microorganisms before going through the microorganism treatment step (e).

Specifically, after storing the eco-friendly fiber material in which the pretreatment step of (d) is completed in a high-temperature and high-pressure container, for 10 to 180 minutes at about 80 to 300°C and 1 to 3 bar, specifically about 100 to It may be treated for 15 to 30 minutes at 130° C. and 1.3 to 1.7 bar, but is not limited thereto.

Further, specifically, the present invention may be prepared by further comprising: (h) blending natural fibers and artificial fibers at a weight ratio of 1:10 to 10:1 after the step (g), Specifically, in a weight ratio of 3:7 to 7:3, 3:10 to 10:3, more specifically 4:6 to 6:4 or 5:9 to 9:5, most specifically 4:6 Alternatively, it may be prepared by mixing at a weight ratio of 7:8, but is not limited thereto.

Another aspect of the present invention provides an eco-friendly antibacterial fiber manufactured through the above manufacturing method.

The eco-friendly fiber of the present invention is characterized by solving the problem of functional destruction and environmental pollution of natural fiber itself caused by a method using chemicals by going through an enzyme treatment process and a microbial treatment process in the manufacturing process.

In addition, the eco-friendly fiber of the present invention exhibits excellent antibacterial, moisture absorption, and deodorant effects, and is obtained from a mixture of eco-friendly fibers having various functions. It can be usefully used in various adult clothes, children's clothes, hats and underwear.

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

Hereinafter, the present invention will be described in detail by examples. However, the following examples are only illustrative of the present invention, and the present invention is not limited by the following examples.

Example 1. Manufacturing process of eco-friendly natural fiber using enzymes and microorganisms

Prior to manufacturing the eco-friendly natural fiber of the present invention, all materials were prepared in a state of being washed to remove contamination such as foreign matter and mold.

The dried hemp peel and the banana stem endothelium were cut into a constant size of 10 to 16 cm, respectively, and 10 to 20 times by weight of purified water was added to each of the above materials, followed by a so-called process for 24 hours.

The soaking step was completed 100 parts by weight of the hemp peel and 100 parts by weight of the banana stem inner skin was subjected to a cooking step of heating for 1 to 5 hours in water at 120 ℃. Thereafter, the eco-friendly fiber material subjected to the cooking step was allowed to stand for 7 to 10 hours until sufficiently cooled at 15°C.

At this time, in the case of cooling at a temperature lower than the above temperature, the fibers become entangled due to rapid contraction of the fibers, resulting in deterioration of quality during subsequent processes, and when cooling at a temperature higher than the above temperature, the strength of the fibers itself decreases. Occurs.

After sufficient cooling is completed, at least one enzyme selected from the group consisting of Flavourzyme, Alcalase, Protease, and Neutrase is added to the eco-friendly fiber material, and 24 at room temperature. The pre-treatment step of leaving to stand for 48 hours was performed. Specifically, 2 to 5 parts by weight of each of the enzymes may be added relative to 100 parts by weight of an eco-friendly fiber material, and in this embodiment, 2 parts by weight of flavorzyme, 2 parts by weight of protease, and an alcalase based on 100 parts by weight of an eco-friendly fiber material 2 parts by weight were added and the pretreatment step was performed for 30 hours.

Relative to 250 parts by weight of the environmentally-friendly textile material wherein before completion of the processing step, Basiliscus subtilis (Bacillus subtillis) 5 to 10 parts by weight, Lactobacillus ramno suspension (Lactobacillus Rhamnosus) 5 to 8 parts by weight, Lactobacillus para casei (Lactobacillus paracasei ) 3 to 5 parts by weight and 1 to 5 parts by weight of Micrococcus roseus were added, and cultured with shaking at 30 to 38°C for 12 to 48 hours.

An eco-friendly fiber of the present invention was prepared by adding 20 to 40 parts by weight of garlic peel extract to 250 parts by weight of the material for which the microbial treatment step was completed, and culturing by shaking for 48 to 72 hours at 35 to 39°C.

In this case, the garlic peel extract was prepared by reflux extraction for 4 hours using 80% ethanol at 95° C. and then concentration under reduced pressure, but is not limited thereto.

The eco-friendly fiber material having completed the above-described process was finally subjected to a post-treatment process of immersion in hot water. For the post-treatment process, the material was immersed in hot water of 80° C. or higher containing a nonionic surfactant and maintained for 30 minutes to obtain an eco-friendly fiber of the present invention.

Example 2. Preparation of biodegradable antibacterial artificial fiber

A biodegradable antibacterial artificial fiber used to manufacture the eco-friendly antibacterial fiber of the present invention was prepared together with the eco-friendly fiber prepared in Example 1 above.

Specifically, the biodegradable antibacterial artificial fibers are biodegradable agents such as polylactic acid (PLA), polyglycolic acid (PGA), PCL (polycaprolactone, PCL), polybutylene succinate (PBS), and PBAT. (poly(butylenes adipate-co-terephthalate), PBAT) or any one selected from among their copolymers alone or a mixture of two is used as a base, and a master batch is prepared by mixing extracts derived from natural products having antibacterial effects. Then, the biodegradable antibacterial artificial fiber of Example 2 was prepared using the masterbatch.

The extracts derived from natural products having the antibacterial effect are Myrrh ( Commiphora myrrha Holmes ), Frankincense ( Boswellia Carterii ), Geumeunhwa ( Lonicera japonica ), Octagon (八角, Illicium verum Hook.f.) and bongchul (蓬朮, Curcuma zedoaria ) Was used, specifically, myrrh ( Commiphora myrrha Holmes ) 30 parts by weight, frankincense ( Boswellia Carterii ) 30 parts by weight, gold and silver ( Lonicera japonica ) 30 parts by weight, octagon (八角, Illicium verum Hook.f. ) 15 parts by weight . Parts by weight and 10 parts by weight of bongchul (蓬朮, Curcuma zedoaria ) may be mixed, extracted with hot water at 95° C. for 3 to 4 hours using 80% ethanol, and then concentrated under reduced pressure, but the present invention is not limited thereto.

The master batch for preparing the biodegradable antibacterial artificial fiber is 100 parts by weight of PLA and 150 parts by weight of PBS, 5 to 50 parts by weight of the extract derived from the natural product, specifically 10 to 40 parts by weight, most specifically 30 parts by weight. It was prepared by mixing parts.

If the content of the extract derived from the natural product is outside the numerical range described above, the present invention cannot exhibit the desired effect. In particular, when the content of the extract exceeds the numerical range, the tensile strength and elasticity of the fiber itself decrease, The inherent utility is inferior, and when it is less than the above numerical range, there is a problem that sufficient antibacterial activity cannot be exhibited.

Example 3. Preparation of eco-friendly antibacterial fiber by mixing natural fibers and artificial fibers

The eco-friendly antibacterial fiber of the present invention was prepared by mixing the eco-friendly natural fiber prepared in Example 1 with the biodegradable antibacterial artificial fiber prepared in Example 2.

Specifically, the eco-friendly antibacterial fiber of the present invention may be a mixture of the natural fiber of Example 1 and the artificial fiber of Example 2 in a weight ratio of 1:10 to 10:1, specifically 3:7 to 7 :3, 3:10 to 10:3 weight ratio, more specifically 4:6 to 6:4 or 5:9 to 9:5, most specifically 4:6 or 7:8 weight ratio It may be prepared by mixing.

When the fibers of Examples 1 and 2 were blended at a weight ratio of 4:6 or 7:8, both physical properties and antibacterial effects of the fiber itself could be satisfied.

In particular, when blended at a weight ratio of 4:6, it exhibited a more excellent antibacterial effect, and when blended at a weight ratio of 7:8, it exhibited more excellent properties.

Comparative Example 1. Preparation of eco-friendly fibers manufactured without microbial treatment

The fiber of Comparative Example 1 was prepared in the same manner, except that the lye (Na ₂ CO ₃ ) was treated instead of the enzyme and microbial treatment process in the manufacturing process of the eco-friendly fiber prepared in Example 1.

Comparative Example 2. Preparation of fibers containing artificial fibers that do not contain antibacterial compositions

In Comparative Example 2 of the present invention, fibers were prepared in the same manner as in Example 2, except that the extract derived from a natural product was not included in the manufacturing process of the artificial fiber of Example 2.

Experimental Example 1. Antibacterial, moisture absorption, and deodorant effect confirmation experiment

The eco-friendly antibacterial fiber prepared in Example 3 and the fibers of Comparative Examples 1 and 2 were subjected to an experiment to compare the antibacterial, moisture absorption, and deodorizing effects.

Whether or not to maintain the antimicrobial properties of the present invention was compared with the antimicrobial properties by KSK-0693. Specifically, 30 g of the fibers of Example 1 and Comparative Examples 1 and 2, which were sterilized at 121°C in a high temperature and high pressure sterilizer (autoclave), were evenly flattened, and then Staphylococcus aureus to be measured on the surface of the fiber ( Staphylococus aureus ) 1 x 10 ⁷ were inoculated and cultured for 18 hours, and then the reduction rate of bacteriostatics was measured in% compared to the standard cotton cloth, and is shown in Table 1 below.

In addition, in order to compare the hygroscopicity and deodorizing power of the present invention, the fibers of Example 1 and Comparative Example were put in a sealed container, and manure collected from the same individual was put in the same amount in each container, and ammonia concentration after 60 minutes elapsed. The degree of reduction and the amount of change in humidity were measured and shown in Table 1 below.

division Antimicrobial (%) Hygroscopicity (%) Deodorization rate (%) Example 1 98.5 94 92 Comparative Example 1 75.4 88 74 Comparative Example 2 56.5 70 65

As shown in Table 1, in all items, it was confirmed that the fibers of Example 1 of the present invention exhibited excellent effects in all items. In particular, it was confirmed that the fiber of the present invention exhibits remarkably excellent antibacterial properties and deodorization rate, even though only eco-friendly materials and biodegradable materials derived from natural products were used.

Experimental Example 2. Experiment to confirm the biodegradability of eco-friendly antibacterial fibers

The biodegradability of the eco-friendly antibacterial fiber of the present invention was measured according to KS M3100-1 (ISO14855). The standard is to measure the amount of carbon dioxide generated under composting conditions and measure the biodegradability (%) of the plastic resin.

The measurement period was a total of 70 days, measured every 10 days, and a commercially available cotton fiber (cotton thread) was used as a control. The results measured for the Examples and Comparative Examples of the same weight are shown in Table 2 below, and the values in Table 2 correspond to the average of the measured values of each of 10 fibers of Example 3 and Comparative Examples 1 and 2 It is the value rounded to the second decimal place.

Biodegradability (%) Example 3 Comparative Example 1 Comparative Example 2 Control Day 10 0.0 0.0 0.0 0.0 Day 20 7.6 6.0 6.2 6.2 Day 30 13.4 8.4 9.3 8.8 Day 40 20.1 12.5 12.9 13.0 Day 50 28.5 15.5 18.0 17.0 Day 60 36.5 19.1 21.5 19.6 Day 70 45.9 21.0 24.6 22.3

As shown in Table 2, it was confirmed that the eco-friendly antibacterial fiber of the present invention exhibits excellent biodegradability. ISO14855 described above requires a decomposition of 90% or more compared to the reference material within 6 months in Korea, and it is predictable that the eco-friendly antibacterial fiber of Example 3 has excellent biodegradability at a level that satisfies ISO certification conditions.

Experimental Example 3. Measurement of overall preference of fabrics woven with eco-friendly fibers

A sensory test was conducted by selecting 30 adults in their 20s to 50s for the overall preference of the fabrics woven using each of the fibers prepared in the above Examples and Comparative Examples.

The overall preference of the fabric made from the fibers of the present invention was measured for softness, breathability and comfort as a sensory test. A 10-point scoring method was used for the rating, and the higher the preference, the higher the score was given. The results are shown in Table 3 below.

Item Example 3 Comparative Example 1 Comparative Example 2 Soft 9.3 8.1 7.9 Breathable 9.1 8.1 7.3 Comfort 8.9 8.3 7.8 Overall preference 9.03 8.08 7.65

As shown in Table 3, it was confirmed that both the Examples and Comparative Examples of the present invention were woven with natural eco-friendly textile products and showed high overall satisfaction. Specifically, in the case of the fabric prepared in Example 3 of the present invention, it showed particularly high satisfaction in softness and breathability, and also showed the highest score compared to the comparative example in the comfort item thought to contain a comprehensive feeling that touches the skin. Done. On the other hand, it was confirmed that Comparative Example 1 omitting the microbial treatment process and Comparative Example 2 not including the antimicrobial composition exhibited significantly lower satisfaction compared to Example 3 of the present invention.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains can understand that it is possible to easily transform it 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 limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and the concept of equivalents thereof should be interpreted as being included in the scope of the present invention.

Claims (5)

(a) adding 10 to 20 times by weight of purified water to the hemp peel and banana stem inner skin cut into a certain size of 10 to 16 cm as an eco-friendly fiber material and soaking for 24 hours;
(b) a cooking step of heating the eco-friendly fiber material after the above-described process at 120° C. for 1 to 5 hours;
(c) cooling the material subjected to the cooking step by standing at 15° C. for 7 to 10 hours;
(d) At least one enzyme selected from the group consisting of Flavourzyme, Alcalase, Protease and Neutrase was added to the cooled eco-friendly fiber material, and 24 at room temperature. A pre-treatment step left to stand for 48 hours;
(e) 5 to 10 parts by weight of Bacillus subtillis , 5 to 10 parts by weight of Lactobacillus Rhamnosus , 5 to 8 parts by weight of Lactobacillus Rhamnosus , based on 200 to 300 parts by weight of the eco-friendly fiber material in which the pretreatment step is completed. Paracasei ( Lactobacillus paracasei ) 3 to 5 parts by weight and Micrococcus roseus ( Micrococcus roseus ) 1 to 5 parts by weight added, and shaking culture at 30 to 38 ℃ for 12 to 48 hours;
(f) 200 to 300 parts by weight of the material for which the shaking culture is completed, 20 to 40 parts by weight of garlic peel extract is added and aged by shaking culture at 35 to 39°C for 48 to 72 hours to produce eco-friendly natural fibers step;
(g) Biodegradants, polylactic acid (PLA), polyglycolic acid (PGA), PCL (polycaprolactone, PCL), polybutylene succinate (PBS), poly(butylenes adipate-co) -terephthalate), PBAT) or any one selected from among their copolymers alone or a mixture of two,
As an extract derived from a natural product with antibacterial effects, myrrh ( Commiphora myrrha Holmes ), frankincense ( Boswellia Carterii ), gold and silver ( Lonicera japonica ), octagonal (八角, Illicium verum Hook.f.) and bongchul (蓬朮, Curcuma zedoaria ) of After mixing the extract to prepare a masterbatch,
Preparing a biodegradable antibacterial artificial fiber using the masterbatch; And
(h) blending the eco-friendly natural fiber and the biodegradable antibacterial artificial fiber at a weight ratio of 4:6 or 7:8; containing, a method for producing an eco-friendly antibacterial fiber. delete delete delete An eco-friendly antibacterial fiber manufactured by the method of claim 1.