KR102452509B1 - Antibacterial dyeing method of cotton/kudzu mixed fiber fabric and cotton/arrowroot mixed fiber fabric manufactured by this method - Google Patents

Abstract

a) The present invention is a refining step of removing impurities by putting a cotton/kudzu mixed fiber fabric having a mixed fiber ratio of 95/5 to 80/20 into a refining machine together with sodium carbonate (Na ₂ CO ₃ ) and a nonionic surfactant;
b) a dyeing step of adding a dye and a dispersion leveling agent to the refined textile fabric and performing dyeing at 120° C. to 130° C. for 40 to 60 minutes;
c) an antibacterial treatment step of applying an antibacterial composition to the dyed fabric and drying; and
d) after putting the dyed and antibacterially treated textile fabric into a tenter machine, a tenter step of performing tenta at 160 ° C. to 180 ° C. for 40 seconds to 50 seconds; relates to an antibacterial dyeing method of cotton / arrowroot blend fiber fabric comprising a. .

Description

Antibacterial dyeing method of cotton/kudzu mixed fiber fabric and cotton/arrowroot mixed fiber fabric manufactured by this method

The present invention relates to a method for antibacterial dyeing of a cotton/kudzu mixed fiber fabric and a cotton/kudzu mixed fiber fabric manufactured by this method.

Arrowroot is a perennial vine whose vine grows up to 30m per year. Young arrowroot vines with a short growth period are angular rod-shaped and blue, but relatively soft and cannot make tough fibers. suitable for

If you want to extract and use only tough fibers from common plants such as ramie, hemp, and flax mulberry, you need to select and collect only the inner bark of the plant. to be.

However, since the whole shoen arrowroot or root is composed of tough fibers that are easy to separate long and thin in the length direction of the vine, and when processed, the whole body turns into a tough and soft fiber. If you want to make and use it, there is no need for effort and cost to select only the inner bark of the collected plants, and you can get more than five times more results than the conventional plant natural fiber production work that uses only the inner bark of plants to make fibers.

For example, if you press the collected kudzu or roots with a vibrating rolling machine, it will not stretch, shrink, or break in the longitudinal direction of the stem. After a while when pressure is applied, the fibers are split like a skein of thread, which is twisted and blown to form a bundle of fibers as long as the length of the vine.

In addition, in the process of making arrowroot fiber, it becomes a finer fiber if it is subjected to repeated vibration compression. If you want to make it tougher and softer, you can make it soft by boiling or steaming the arrowroot or root that has already become semi-fiber after primary processing, and then goes through the same processing process as above. can get The selection of the process for making arrowroot fiber may be determined differently depending on the conditions of use as a material that may be different for each place of use.

However, in the case of manufacturing a textile fabric using only arrowroot fibers, it is difficult to apply it to various uses due to its characteristics. Therefore, this problem can be solved by mixing with cotton fibers.

On the other hand, arrowroot fiber is a natural fiber that provides beneficial properties to the human body, but its antibacterial properties are not sufficient for its body. Therefore, it is necessary to strengthen these antibacterial properties through further processing. In addition, although dyeing is required for application to various uses, it is difficult to impart a desired color when general dyeing is applied due to the characteristics of arrowroot fibers.

However, arrowhead fibers developed so far do not appear to have sufficiently improved such antibacterial properties and dyeing properties.

Korean Patent Publication No. 10- 1986-0009193

The present inventors have been devised to improve the above problems of the prior art, and by using a natural antibacterial composition for cotton / arrowroot blend fiber fabric and simultaneously performing antibacterial treatment of the textile fabric in the dyeing process, excellent antibacterial properties and dyeing An object of the present invention is to provide a method for antibacterial dyeing of a cotton/kudzu mixed fiber fabric that simultaneously imparts properties and a cotton/kudzu mixed fiber fabric manufactured thereby.

the present invention

a) a refining step of removing impurities by putting the cotton / arrowroot blend fiber fabric together with sodium carbonate (Na ₂ CO ₃ ) and a nonionic surfactant into a refining machine;

b) a dyeing step of adding a dye and a dispersion leveling agent to the refined textile fabric and performing dyeing at 120° C. to 130° C. for 40 to 60 minutes;

c) an antibacterial treatment step of applying an antibacterial composition to the dyed fabric and drying; and

d) after putting the dyed and antibacterially treated textile fabric into a tenter machine, a tenta step of performing tenta at 160 ° C. to 180 ° C. for 40 seconds to 50 seconds; provides an antibacterial dyeing method of cotton / arrowroot blend fiber fabric comprising .

In addition, it provides a cotton / arrowroot blend fiber fabric manufactured by the antibacterial dyeing method.

According to the antibacterial dyeing method of the cotton / arrowroot blend fiber fabric of the present invention, it is economical and has excellent antibacterial properties and Dyeing properties can be imparted at the same time.

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

a) a refining step of removing impurities by putting the cotton / arrowroot blend fiber fabric together with sodium carbonate (Na ₂ CO ₃ ) and a nonionic surfactant into a refining machine;

b) a dyeing step of adding a dye and a dispersion leveling agent to the refined textile fabric and performing dyeing at 120° C. to 130° C. for 40 to 60 minutes;

c) an antibacterial treatment step of applying an antibacterial composition to the dyed fabric and drying; and

d) after putting the dyed and antibacterially treated textile fabric into a tenter machine, a tenter step of performing tenta at 160 ° C. to 180 ° C. for 40 seconds to 50 seconds; relates to an antibacterial dyeing method of cotton / arrowroot blend fiber fabric comprising a. .

In the step a), the cotton/kudzu mixed fiber fabric preferably has a mixed fiber ratio of 95/5 to 80/20. When mixed in the above range, the strength of the fiber, the feel, etc. may have desirable properties.

Cotton fibers and kudzu fibers for the cotton / kudzu blend can be prepared by a method known in this section. For example, using a fiber divided from arrowroot stems, mixed with cotton fibers at the above-mentioned mixing ratio, and supplied to a carding machine, carding is performed 2-4 times to prepare a cotton web. Thereafter, a cotton sliver is manufactured, and after the soft sliver is manufactured through a softening process, a cotton / arrowroot blend fiber fabric can be manufactured in a conventional manner using a spinning machine.

In one embodiment of the present invention, the a) refining step comprises mixing the cotton / arrowroot blend fiber fabric with sodium carbonate (Na ₂ CO ₃ ) with strong hygroscopicity of white powder and a nonionic surfactant having an active group that does not ionize in water and It is a step to remove impurities by putting them together in a refiner. Here, scouring refers to removing impurities such as various sizes, oils, and weaving oils that are naturally attached in the process of knitting the textile fabric. That is, it is a step of removing impurities that negatively affect antibacterial properties.

Specifically, the refining step is performed at 70°C to 85°C for 10 minutes to 20 minutes. Here, when refining at a temperature of less than 70 ° C., impurities are not sufficiently removed, and when refining at a temperature exceeding 85 ° C., a large amount of energy is lost as well as there is a risk of shrinkage of the fabric. When refining for less than 10 minutes, impurities are not sufficiently removed, and when refining for more than 20 minutes, a large amount of energy is lost as well as a possibility of shrinkage of the fabric.

Next, b) dyeing step is performed by adding a dye and a dispersion leveling agent to the refined antibacterial fiber fabric and dyeing at 120° C. to 130° C. for 40 minutes to 60 minutes.

Here, when dyeing at a temperature of less than 120 ℃, the dye is not sufficiently dyed on the antibacterial fiber fabric, so there is a risk of water loss when washing the finished antibacterial fabric, and the energy lost when dyeing at a temperature exceeding 130 ℃ Not only does it occur in large amounts, but there is also a risk that the fabric may shrink. When dyeing for less than 40 minutes, the dye is not sufficiently dyed on the antibacterial fiber fabric, so there is a risk of water loss when washing the finished antibacterial fabric. In addition, there is a risk that the fabric may shrink.

In the above, as the dye, known natural dyes and chemical dyes may be used without limitation. For example, direct dyes, basic dyes, vat dyes, sulfur dyes, and insoluble dyes are used for vegetable fibers, and basic dyes, acid dyes, and mordant dyes are used for animal fibers. ), soluble (可溶性) vat dyes are used. Also, for synthetic fibers, disperse dyes and insoluble azo dyes are often used.

The dispersed leveling agent added in the dyeing step b) refers to an auxiliary agent added during dyeing so that the dyeing of the fabric can be uniform, and is also called a leveling agent. Specifically, a polyoxyethylene oxide alkyl alcohol-based dispersion leveling agent with excellent leveling, dyeing, and penetrating power is used during high-pressure dyeing.

Incidentally, in this dyeing step, a softening agent and a sequestering agent in the bath are further included, and the softener in the bath is an emulsion obtained by emulsifying and dispersing an ester-based elastic polymer, and the sequestering agent is a nonionic sequestering agent. used

Softener in the bath, also called softener, provides soft elasticity, excellent touch and anti-wrinkle properties, while metal ion sequestrant completely blocks all metal salts (Fe++, Mg, etc.) that affect dyeing contained in water and provides hard water. It acts as a softening agent.

In the c) antibacterial treatment step, the antibacterial composition may include 90 to 95% by weight of the ethanol extract of the leaf fenugreek leaves and 5 to 10% by weight of the compound of Formula 1:

[Formula 1]

where m and n are mole fractions,

m is 0.3 to 0.7, n is 0.3 to 0.7, and m+n is 1.

The compound of Formula 1 performs a function of making the antimicrobial components of the antimicrobial composition better adsorb to the textile fabric, and then allowing the dye to be well fixed to the textile.

The polymer of Formula 1 may have a weight average molecular weight of 50,000 to 300,000, more preferably 150,000 to 250,000.

The ethanol extract from the leaf of chamomile leaf is a component that imparts antibacterial properties to the antibacterial composition. It was confirmed that the extract of the leaf extract of fenugreek plant had excellent antibacterial activity in Experimental Example 1.

The Ravenala madagascariensis is the only species of the genus Ravenala and lives in Madagascar. This genus is a close continuation of the genus Bird of Paradise in South Africa and the genus Nipponidella in South America. It grows to about 10 to 20 m in height, and the stem is erect. At first it is herbaceous, but later it becomes woody and the stem has a round shape. It got its name because the spot where the leaves fell rises in the shape of a thick stem, and the glossy, dark green leaves spread from side to side like an open fan. The leaves are banana leaf-shaped and leathery, and the length is about 2.5m. The flowers are white and the seeds are blue. It is edible because it contains a large amount of starch.

In addition, the antibacterial composition may include 90 to 92% by weight of the ethanol extract of the leaf of chamomile, 5 to 7% by weight of the compound of Formula 1, and 3 to 5% by weight of the polar organic solvent. As the polar organic solvent, for example, dimethyl formamide (DMF) may be used.

In addition, the antibacterial composition contains 90 to 95% by weight of a mixture of ethanol extract of Alocasia Odora leaf and ethanol extract of Alocasia Odora leaf and 5 to 10% by weight of the compound of Formula 1, which are included in a weight ratio of 4:6 to 6:4 % may be included.

In addition, the antibacterial composition contains 90 to 92% by weight of a mixture of an ethanol extract of Alocasia Odora leaf and an ethanol extract of Alocasia Odora leaf contained in a weight ratio of 4:6 to 6:4, and 5 to 7% by weight of the compound of Formula 1 %, and 3 to 5 wt% of a polar organic solvent. As the polar organic solvent, for example, dimethyl formamide (DMF) may be used.

The Alocasia odora (scientific name: Alocasia odora) is a plant native to the Philippines, Taiwan, and northeastern India. The present inventors have completed the present invention by discovering that the Alocasia odora has excellent antibacterial activity.

In the present invention, the application of the antimicrobial composition may be performed by various methods known in the art. That is, it can be carried out by spraying, dipping, or the like.

In one embodiment of the present invention, the antimicrobial composition is Gram-positive bacteria Staphylococcus aureus ( Staphylococcus aureus ), Bacillus bacteria ( Bacillus cereus ) and caries-causing bacteria ( Streptococcus mutans ); Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa ; and yeasts, Candida albicans ) and dandruff-causing bacteria ( Malassezia furfur ); provides antibacterial activity. In addition, the antibacterial fiber fabric treated with the antibacterial composition also exhibits excellent antibacterial activity against the bacteria.

In the tenta step d), after the dyed antibacterial fabric is put into the tenter, the tenter is performed at 160° C. to 180° C. for 40 seconds to 50 seconds. In the tenta step, in order to match the dyed antibacterial fiber to the specifications desired by the buyer, the width and weight of the fabric are adjusted, the feel is flexibly adjusted, and heat suitable for the purpose of the product is applied to finally make the processable antibacterial fabric.

On the other hand, a tenter (Tenter) is a machine for fixing the fabric with heat in order to meet the purpose and specification of the fabric, and is a machine widely used in general. Tenta maintains excellent antibacterial properties and elasticity by applying heat to the textile fabric according to the set conditions.

Here, when tenter is performed at a temperature of less than 160 ℃, there is a fear that the fixing of the fabric is not sufficient according to a predetermined standard. There are concerns. If the tenter is performed for less than 40 seconds, there is a risk that the fabric is not fixed enough according to the prescribed specifications, and when the tenter is performed at a temperature of more than 50 seconds, a large amount of energy is lost as well as the possibility of shrinkage of the fabric. have.

Through the process as described above, the dyed textile fabric with antibacterial performance that suppresses bacteria, viruses, etc. is manufactured, so that it can be processed and utilized for various purposes.

In addition to the antibacterial and dyeing processes specifically described above, the antimicrobial treatment and dyeing process may be performed by a general method known in the art.

Hereinafter, the present invention will be described in more detail through Preparation Examples and Examples. However, the following examples are provided to explain the present invention in more detail, and the scope of the present invention is not limited by the following examples. The following examples can be appropriately modified and changed by those skilled in the art within the scope of the present invention.

Preparation Example 1: Leaf extract of chamomile leaf extract

The dried fancifolio leaves were crushed into 5~10 mesh to prepare fanbacho leaf powder. Next, 10 L of ethanol having a concentration of 60% by volume was mixed with 1 kg of the leaf powder of Japanese sagebrush, followed by stirring at 60-80° C. at a stirring speed of 300 rpm for 2 hours using a stirrer to prepare an extract solution.

Next, the extract solution was first filtered using a non-woven filter paper, and the first filtrate was second filtered using a diatomaceous earth filter so that no precipitate was formed.

The recovered secondary filtrate was concentrated under reduced pressure at 60° C. using a concentrator to obtain a leaf extract of Japanese cypress.

Preparation Example 2: Alocasia odora leaf extract

A powder was prepared by finely pulverizing the dried Alocasia Odora leaves to 5-10 mesh. Next, 10 L of ethanol having a concentration of 60% by volume was mixed with 1 kg of the Alocasia odora leaf powder, and then, using a stirrer, the extract solution was prepared by stirring at 60-80°C at a stirring speed of 300rpm for 2 hours.

Next, the extract solution was first filtered using a non-woven filter paper, and the first filtrate was second filtered using a diatomaceous earth filter so that no precipitate was formed.

The recovered secondary filtrate was concentrated under reduced pressure at 60° C. using a concentrator to obtain an Alocasia odora leaf extract.

Preparation Example 3: Preparation of the compound of Formula 1

3-[[2-(Methacryloyloxy)ethyl]dimethylamino]propionate (3-[[2-(Methacryloyloxy)ethyl]dimethylammonio]propionate, CAS No.24249-95- 4) and 3-(trimethoxysilyl)propyl methacrylate (3-(Trimethoxysilyl)propyl methacrylate) were added in a molar ratio of 0.5:0.5, and 0.5 parts by weight of normal mercaptan was mixed with 100 parts by weight of the total monomer to uniformly made.

The polymerization solution prepared above was put into a 20 L reactor at a rate of 10 L/hr and polymerized at a temperature of 100° C., the unreacted monomer and reaction solvent were removed at a temperature of 150° C. in a volatilization tank, washed, dehydrated, and dried. A compound of Formula 2 having a weight average molecular weight of 220,000 was obtained.

[Formula 1]

In the above formula, m and n are mole fractions, and m=0.5 and n=0.5.

Preparation Example 4: Preparation of antibacterial composition

An antibacterial composition was prepared by mixing 93% by weight of the ethanol extract of fenugreek leaf prepared in Preparation Example 1 and 7% by weight of the compound of Formula 1 prepared in Preparation Example 3.

Preparation Example 5: Preparation of antibacterial composition

95% by weight of a mixture of the Alocasia Odora leaf ethanol extract prepared in Preparation Example 1 and the Alocasia Odora leaf ethanol extract prepared in Preparation Example 1 in a weight ratio of 1:1 and the compound of Formula 1 prepared in Preparation Example 3 5 An antibacterial composition was prepared by adding it at a concentration of % by weight.

Example 1: Antibacterial dyeing of cotton / arrowroot blend fiber fabric

Sodium carbonate 2g/L (O.W.S) and nonionic surfactant 1g/L (O.W.S) were used on a cotton/kudzu blend fiber fabric having a blend ratio of 90/10, and scouring was performed at 80° C. for 10 minutes. After refining, dyeing aids and dyes were added in a dyeing copper bath (liquid dyeing machine), and dyeing was performed at about 120° C. for about 50 minutes.

For the dyeing aid, about 0.5 to 1 g/L (O.W.S) of each of the dispersion leveling agent, the softening agent in the bath, and the metal ion sequestering agent are added in a total of about 1 to 3 g/L (O.W.S), and the dye (congo red) is about 1% by weight. (O.W.F=on the weight of fabric.) was used.

The dyed cotton / arrowroot blend fiber fabric was immersed in the antibacterial composition prepared in Preparation Example 4 for 3 hours, subjected to antibacterial treatment, and then dried.

After dyeing, tenter was performed for about 40 seconds at a temperature of about 170° C. in a tenter machine.

Example 2: Antibacterial dyeing of cotton / arrowroot blend fiber fabric

Using 2 g/L (O.W.S) of sodium ethonate and 1 g/L (O.W.S) of a nonionic surfactant on a cotton/kudzu blend fiber fabric having a blend ratio of 90/10, scouring was performed at 80° C. for 10 minutes. After refining, dyeing aids and dyes were added in a dyeing copper bath (liquid dyeing machine), and dyeing was performed at about 120° C. for about 50 minutes.

For the dyeing aid, about 0.5 to 1 g/L (O.W.S) of each of the dispersion leveling agent, the softening agent in the bath, and the metal ion sequestering agent are added in a total of about 1 to 3 g/L (O.W.S), and the dye (congo red) is about 1% by weight. (O.W.F=on the weight of fabric.) was used.

The dyed cotton / arrowroot blend fiber fabric was immersed in the antibacterial composition prepared in Preparation Example 5 for 3 hours, subjected to antibacterial treatment, and then dried.

After dyeing, tenter was performed for about 40 seconds at a temperature of about 170° C. in a tenter machine.

Comparative Example 1: Antibacterial dyeing of cotton / arrowroot blend fiber fabric

Sodium carbonate 2g/L (O.W.S) and nonionic surfactant 1g/L (O.W.S) were used on a cotton/kudzu blend fiber fabric having a blend ratio of 90/10, and scouring was performed at 80° C. for 10 minutes. After refining, dyeing aids and dyes were added in a dyeing copper bath (liquid dyeing machine), and dyeing was performed at about 120° C. for about 50 minutes.

For the dyeing aid, about 0.5 to 1 g/L (O.W.S) of each of the dispersion leveling agent, the softening agent in the bath, and the metal ion sequestering agent are added in a total of about 1 to 3 g/L (O.W.S), and the dye (congo red) is about 1% by weight. (O.W.F=on the weight of fabric.) was used.

The dyed cotton / arrowroot blend fiber fabric was immersed in the leaf extract prepared in Preparation Example 1 for 3 hours, subjected to antibacterial treatment, and then dried.

After dyeing, tenter was performed for about 40 seconds at a temperature of about 170° C. in a tenter machine.

Test Example 1: Safety evaluation of antibacterial dyed cotton / arrowroot blend fiber fabric

The stability of the ethanol extract of Alocasia Odora and the ethanol extract of Alocasia Odora prepared in Preparation Examples 1 and 2 was tested through a 48-hour patch test using Guinea Pig. The degree of irritation was evaluated and the results are shown in Table 1 below.

<Evaluation criteria>

○: Non-irritating (there is almost no erythema and edema)

△: mild irritation (very mild erythema and edema)

×: moderate irritation (moderate edema and obvious erythema)

Properties Preparation Example 1 Preparation 2 pepper ○ ○

As shown in Table 1 above, it was confirmed that the ethanol extract of Alocasia odora and the ethanol extract of Alocasia odora prepared in Preparation Examples 1 and 2 were safe for the skin.

Test Example 2: Measurement of antibacterial activity of antibacterial dyed cotton / arrowroot blend fiber fabric

The antibacterial activity of the antibacterial dyed cotton / arrowroot blend fiber fabrics prepared in Examples 1 to 2 and Comparative Example 1 was measured.

Representative food poisoning bacteria (Bacillus cereus, Bacillus subtilis, Campylobacter jejuni, Escherichia coli, Escherichia coli O-157, Listeria monocytogenes, Pseudomonas aeruginosa, Staphylococcus aureus, Salmonella enteritidis, Salmonella thypimurium, Vibrio parahaemolyticus) were used.

The bacteria were inoculated with 50 μl of the culture in 10 ml of sterile TSB medium and subcultured at 30° C. for 24±1 hours. The concentration of this culture was maintained at an Abs 0.6±0.1 at an absorption wavelength of 655 nm in a microplate reader. The subcultured test bacteria were diluted 10 ^-3 times with sterile distilled water, and the disc diffusion method was performed. That is, the diluted strain is put on a sterile cotton swab and spread spread on a plate medium with a thickness of 4 µL, and the antibacterial fabric prepared in Examples 1 to 2 and Comparative Example 1 is cut into circles with a diameter of 8 µL and raised, 24±1 hours Cultured and confirmed the growth ring.

The antibacterial activity of the antibacterial fabrics of Examples 1 to 2 and Comparative Example 1 was evaluated by measuring the size of the transparent band including the antibacterial fabric (diameter 8mm), and the results are shown in Table 2 below.

strain name strain number ^a Antibacterial activity (mm) ^b Comparative Example 1 Cotton / arrowroot blend fiber fabric Example 1 Cotton / arrowroot blend fiber fabric Example 2 Cotton / arrowroot blend fiber fabric bacteria Bacillus cereus KCTC 1012 11 13 15 Bacillus subtilis KCCM 1021 12 15 17 Campylobacter jejuni KCCM 41772 11 13 16 Escherichia coli ATCC 25922 10 13 16 Escherichia coli O-157 ATCC 43888 11 15 17 Listeria monocytogenes ATCC 15313 12 15 17 Pseudomonas aeruginosa KCTC 1750 11 14 16 Staphylococcus aureus ATCC 25923 11 15 18 Salmonella enteritidis KCCM 11862 10 13 15 Salmonella thypimurium ATCC 13076 12 16 18 Vibrio parahaemolyticus ATCC 17802 11 15 18 Yersinia enterocolitica ATCC 23715 13 16 18

Co., Ltd. ^a : ATCC American Type Culture Collection, KCTC Korea Research Institute of Bioscience and Biotechnology Biological Resources Center; KCCM Korea Sprout Association

^b : size of transparencies (diameter?L)

As can be seen in Table 2, the fabric of Example 1 showed excellent antibacterial activity against all bacteria compared to the fabric of Comparative Example 1. This effect seems to be due to the result that the compound of Formula 1 allows the antibacterial components to be well fixed to the fibers.

In particular, the fabric of Example 2 using an antibacterial composition containing a compound of Formula 1 and a mixture of an ethanol extract from Alocasia odora leaf and an ethanol extract from Alocasia odora leaf exhibited superior antibacterial activity than the fabric of Example 1.

Test Example 3: Measurement of antibacterial properties of antibacterial dyed cotton / arrowroot blend fiber fabric

Antibacterial properties were measured in accordance with Korean Industrial Standards KS K 0693-1990 for the antibacterially dyed cotton/kudzu blend fiber fabrics prepared in Examples 1 and 2. The experimental results are shown in Table 3.

antibacterial Example 1 Antibacterial mask fabric pass Example 2 Antibacterial Mask Fabric pass

As can be seen in Table 3, the antibacterial dyed cotton / arrowroot blend fiber fabric of the present invention all exhibited excellent antibacterial properties.

Claims (6)

a) a refining step of removing impurities by introducing a cotton/kudzu mixed fiber fabric having a mixed fiber ratio of 95/5 to 80/20 into a refining machine together with sodium carbonate (Na ₂ CO ₃ ) and a nonionic surfactant;
b) a dyeing step of adding a dye and a dispersion leveling agent to the refined textile fabric and performing dyeing at 120° C. to 130° C. for 40 to 60 minutes;
c) an antibacterial treatment step of applying an antibacterial composition to the dyed fabric and drying; and
d) a tenter step of putting the dyed and antibacterially treated textile fabric into a tenter machine and then performing a tenter at 160° C. to 180° C. for 40 seconds to 50 seconds; and
The antibacterial composition of step c) is an antibacterial dyeing method of cotton / arrowroot blend fiber fabric, characterized in that it comprises 90 to 95% by weight of an ethanol extract of Japanese radish leaves and 5 to 10% by weight of the compound of Formula 1 below:
[Formula 1]

where m and n are mole fractions,
m is 0.3 to 0.7, n is 0.3 to 0.7, and m+n is 1. According to claim 1,
The antibacterial dyeing method of the cotton / arrowroot blend fiber fabric, characterized in that the blend ratio is 95/5 to 80/20. delete According to claim 1,
An antibacterial dyeing method of a cotton / arrowroot blend fiber fabric, characterized in that the arrowroot fiber contained in the cotton/kudzu fiber is separated from the arrowroot skin. According to claim 1,
The antimicrobial composition is Gram-positive bacteria Staphylococcus aureus ( Staphylococcus aureus ), Bacillus bacteria ( Bacillus cereus ) and tooth decay-causing bacteria ( Streptococcus mutans ); Gram-negative bacteria Escherichia coli and Pseudomonas aeruginosa ; And yeasts Candida ( Candida albicans ) and dandruff-causing bacteria ( Malassezia furfur ); Antibacterial dyeing method of cotton / arrowroot blend fiber fabric, characterized in that it has antibacterial activity. A cotton / arrowroot blend fiber fabric manufactured by the antibacterial dyeing method of claim 1.