KR100797098B1 - Antimicrobial fiber processing agent composition, and functional fibers treated with the composition - Google Patents

Abstract

The present invention relates to a fiber processing agent composition and a functional fiber treated with the composition, the composition comprising a silver nano sol, an organic silicon-based quaternary ammonium salt solution and a binder having a content of unreacted amine of 5 mol% or less.

Functional fibers treated with the fiber processing agent composition of the present invention exhibit excellent laundry durability and antibacterial properties.

Description

ANTIMICROBIAL FABRIC TREATMENT COMPOSITION AND FIBROUS SUBSTRATE TREATED THEREWITH

Figure 1a is a graph showing the results of gas chromatography analysis of dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride prepared in Reference Example 1.

Figure 1b is a graph showing the results of gas chromatography analysis of the organic silicon-based quaternary ammonium salt used in Comparative Example 1.

Figure 2 is a process diagram briefly showing a post-processing process for producing a functional fiber according to an embodiment of the present invention.

[Industrial use]

The present invention relates to a fiber processing agent composition and a functional fiber treated with the composition, and more particularly, to a fiber processing composition and a functional fiber treated with the composition exhibiting excellent antimicrobial and laundry durability.

 [Prior art]

Fabrics that directly contact the human body, such as underwear, bedclothes, there is a problem that if the appropriate temperature and humidity is provided after sweating, microorganisms, such as bacteria to proliferate to cause odor or discoloration and spoiling of the fabric. On the other hand, as a method for imparting antimicrobial and deodorizing property to a textile fabric or a product, methods for mixing or impregnating a fabric containing a composition containing an antimicrobial agent such as an organosilicon quaternary ammonium salt or an aromatic halogen compound have been proposed.

For example, Japanese Patent Laid-Open No. 51-2737, Japanese Patent Laid-Open No. 59-68377 and the like disclose a coating composition using an organic alkoxysilane. However, the coating composition using the organic alkoxy silane was developed for use in cosmetics, anticorrosive films, and the like, and cannot be used for applications requiring antibacterial and deodorizing properties such as medical and health care.

In addition, Japanese Patent Application Laid-Open No. 60-185866 discloses a method for producing an antimicrobial fiber product by ion treating a textile fabric or a product with an electrolyte salt and a specific unsaturated fatty acid in the organosilicon quaternary ammonium salt antimicrobial treatment solution. However, this method also has a problem that the organic silicone quaternary ammonium-based antimicrobial agent is yellowed by laundry durability and chlorine-based detergent.

In order to improve this, a method of preparing an ion exchange copolymer and treating it with an aqueous solution of a copper salt or a silver salt to express metal ions on a fiber surface to impart antimicrobial properties has been proposed. However, such a method also has a problem that metal ions react with the polymer, thereby deteriorating the physical properties of the polymer material, and thus, after the process, the permeability is decreased and the physical properties of the final fiber are degraded. In addition, there is a problem in maintaining the laundry durability that the antibacterial activity persists even after washing.

An object of the present invention is to provide a fiber processing agent composition that can be applied to medical, health, improve the problems as described above, having excellent antimicrobial action and wash durability and can maintain excellent antimicrobial activity even after washing.

The present invention also aims to provide a functional fiber treated with the fiber processing agent composition.

In order to achieve the above object, the present invention provides a fiber processing agent composition comprising a silver nano sol, an organic silicon-based quaternary ammonium salt solution having a content of unreacted amine of 5 mol% or less and a binder.

The present invention also provides a functional fiber treated with the fiber processing agent composition.

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

Silver particles exhibit a strong bactericidal power against about 650 harmful bacteria and fungi, and studies are being actively conducted to attach the silver particles to fibers to impart antimicrobial properties.

In general, in the manufacture of silver nanoparticles, in order to maintain the dispersibility of the produced nanoparticles and the production of silver nanoparticles, a dispersant is used a polymer material that can cause a dispersion effect by a steric effect. Accordingly, in order to apply the silver nanoparticles prepared using the polymer dispersant to the fiber, a binder capable of adhering the silver nanoparticles to the fiber is required. However, physical adhesion by the binder is poor in wash durability, and when the use of the binder is increased in order to improve the wash durability, there is a problem of dropping the feel of the fiber. In addition, silver particles may agglomerate during adhesion to fibers, and may discolor when stored at room temperature for a long time.

In contrast, in the present invention, in the case of fixing silver nanoparticles to fibers and the like, without using a dispersant, silver binders and organic silicon quaternary ammonium having optimized properties with silver nano-sols and the silver nano-sols are used for washing durability and antimicrobial properties. Can be improved. In addition, the amount of the binder can be minimized, thereby exhibiting an excellent antimicrobial effect without deteriorating the physical properties such as the feel of the fiber.

That is, the fiber processing composition according to an embodiment of the present invention, silver nano sol; Organic silicon-based quaternary ammonium salt solution having an unreacted amine content of 5 mol% or less; And binders.

The silver nano sol is dispersed in water in which silver particles are a dispersion medium, and has excellent dispersibility. The concentration of the silver particles dispersed in the silver nano sol is preferably 500 to 2000 ppm, more preferably 1000 to 1500 ppm. If the concentration of silver particles is less than 500 ppm, the adhesion of the silver particles may decrease due to the increase of the content of the dispersion medium due to the increase of the content of the silver nano sol contained in the composition. If the concentration of silver particles exceeds 2000 ppm, the dispersibility of the silver particles in the silver nano-sol It is unpreferable because it may fall.

In order to maximize the antimicrobial, durability and stability of the fiber processing agent composition, the silver nanoparticles preferably have an average particle diameter of 2 to 30 nm, more preferably 5 to 20 nm. If the size of the silver nanoparticles is less than 2 nm, it is not preferable because the intergranular agglomeration may occur and the dispersibility may be deteriorated. If the size of the silver nanoparticles is larger than 30 nm, washing durability may decrease when silver nanoparticles adhere to the fiber surface as the particles become larger. Since this is large, it is not preferable.

In addition, as the silver particles according to an embodiment of the present invention, it is more preferable to use those surface-treated with an ionic surfactant.

As said ionic surfactant, a normal surfactant can be used, More preferably, anionic and amphoteric surfactant can be used. Specifically, sodium alkylbenzene sulfonate, alpha-olefin sulfonate (AOS), methyl ester sulfonate, lignin sulfonate, alkylaminobenzene sulfonate or mixtures thereof and the like can be used.

The surface treatment layer formed on the surface of the silver nanoparticles facilitates particle dispersion. Accordingly, by controlling the dispersibility of the silver nanoparticles, it is possible to have a uniform particle size in which aggregation does not occur, resulting in excellent dispersibility in the colloidal state. In addition, due to the surface treatment layer, the silver nanoparticles have superior stability as compared to conventional silver nanoparticles, and thus there is no fear of aggregation, precipitation phenomenon or discoloration even at room temperature of 6 months or more. In addition, it has excellent heat resistance and does not change physical and chemical properties even at heat of 200 ° C. or higher.

As the size of silver particles increases, the antimicrobial activity due to the durability of washing decreases. Since the silver nanoparticles have excellent dispersibility and have no nanoparticle size and no agglomeration, the use of silver particles can be reduced due to the increase in specific surface area. As a result, excellent antimicrobial activity can be obtained using a small amount of silver particles.

The silver nano sol is a dispersion of silver particles in a concentration of 500 to 2000ppm, it is preferably contained in 1 to 30 vol ‰, more preferably 2 to 20 vol ‰, even more preferably with respect to the total volume of the processing agent composition. Preferably 2 to 10 vol. In the present specification, ‰ denotes the fractional ratio, and refers to the content (ml) of the components included in 1000 ml of the processing agent composition. If the content of silver nano sol is less than 1 volume ‰, the effect of silver addition is insignificant and the antimicrobial effect is not good, and the color of the diluted silver solution itself is yellow. There is a fear of discoloration, which is not preferable.

The organic silicon-based quaternary ammonium salt solution having an unreacted amine content of 5 mol% or less exhibits bactericidal properties by destroying the cell surface structure and also serves to prevent static electricity.

As the organosilicon-based quaternary ammonium salt, a compound having the structure of Formula 1 may be used.

[Formula 1]

Wherein R ₁ , R ₂ and R ₃ are each independently an alkyl group having 1 to 18 carbon atoms, R ₄ , R ₅ and R ₆ are each independently an alkyl group having 1 to 4 carbon atoms, X is chlorine, fluorine, bromine, Is selected from the group consisting of iodine, carboxylic acid and sulfonic acid, n is an integer from 1 to 6. Preferably, X is selected from the group consisting of chlorine, fluorine, bromine, iodine, acetic acid, and tosylic acid.

More preferably, dialkyloctadecyl [3- (trialkoxysilyl) alkyl] ammonium chloride may be used, wherein an alkyl group means an alkyl group having 1 to 6 carbon atoms and an alkoxy group means an alkoxy group having 1 to 6 carbon atoms.

Even more preferably, dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride having a structure of formula (2) may be used:

[Formula 2]

The organosilicon-based quaternary ammonium salt may be prepared by a conventional method, preferably by a manufacturing method including a step of reacting an alkylamine with a haloalkylalkoxysilane under a nitrogen atmosphere.

N, N-dimethyloctadecylamine or the like can be used as the alkyl amine, and 3- (chloropropyl) trimethoxysilane can be used as the haloalkylalkoxysilane.

An organic silicon quaternary ammonium salt can be obtained by washing | cleaning the substance obtained as a result of the mixing reaction of the said alkylamine and haloalkylalkoxysilane with alcohol, such as methanol, and removing the remaining alcohol.

The organosilicon-based quaternary ammonium salt prepared by the preparation method as described above contains 5 mol% or less of unreacted amine, preferably 0.001 to 4 mol%.

Since the content of unreacted amine is lower than that of the conventional organic silicon-based quaternary ammonium salt, which is commercially available, it may exhibit better antimicrobial activity and durability.

The organic silicon quaternary ammonium salt is water; It is used in the solution state melt | dissolved in the lower alcohol of C1-C5.

At this time, the organic silicon-based quaternary ammonium salt-containing solution is preferably contained in 0.01 to 10% by volume, more preferably 0.1 to 7% by volume, even more preferably 1 to 5% by volume based on the total volume of the processing agent composition. It is good to be. If the content of the organosilicon-based quaternary ammonium salt in the fiber processing agent composition is less than 0.01 volume ‰, the fungicide role is inadequate. This is undesirable because of the cost increase.

In addition, the solution may contain an organosilicon quaternary ammonium salt in a concentration of 1 to 10% by volume, more preferably 1 to 5% by volume.

The binder serves to physically bond the silver nanoparticles, and is used in fiber processing, nonwoven fabric processing, construction, and paper processing to provide excellent adhesiveness, washing resistance, abrasion resistance, acrylic resins, polyurethane resins, and aerials thereof. One selected from the group consisting of coalescing and mixtures thereof can be used. More preferably, it is preferable to use a water-soluble acrylic compound.

The binder may be used in admixture with a surfactant. In the case of using the binder and the surfactant as described above, the physical adhesion of the silver nanoparticles to the fiber may be increased to further improve durability.

As the surfactant, cationic surfactants, anionic surfactants, and nonionic surfactants can be used, and more preferably, nonionic surfactants can be used.

In addition, as the nonionic surfactant, polyoxyethylene alkyl ether, fatty acid alkanolamine, alkyl polyglucoside, amine oxide, alkenylpolyethylene alkyl ether, sugar ether, and mixtures thereof may be used, more preferably. Like polyoxyethylene tridecyl ether, an alcohol ethoxylate having 8 to 18 carbon atoms having polyoxyethylene and a hydroxyl group as a hydrophilic group can be used.

The mixing amount of the binder and the surfactant is preferably mixed at a weight ratio of 7: 1 to 5: 3, and more preferably at a mixing ratio of 5: 1 to 5: 3. When the mixing ratio of the binder and the surfactant is out of the above range and the amount of the binder is too much compared to the amount of the surfactant, the flexibility of the fiber is lowered, which is not preferable. It is not preferable because the fiber adhesion of the material to be exhibited is lowered.

Such a binder is preferably included in the amount of 970 to 998 volume ‰, more preferably 980 to 995 volume ‰ with respect to the total volume of the fiber processing agent composition. If the content of the binder contained in the fiber processing agent composition is less than 970 volume ‰, the durability of the silver nanoparticles may be reduced due to the decrease in adhesion of the silver nanoparticles. It is not desirable.

In addition to the above components, the fiber processing agent composition of the present invention may further include an additive selected from the group consisting of conventional preservatives, bactericides, optical brighteners, pigments, antioxidants, antifoaming agents, and mixtures thereof.

As the preservative, 2,4,4'-trichloro-2'-hydroxydiphenyl ether may be used, and as the fungicide, trichlorocarvanide, dibromosalicylanylide, tribromosally Silanide, dichlorotrifluoromethylcarvanide, chlorohexidine hydrochloride and the like can be used.

As described above, the fiber processing composition according to the present invention uses silver nanoparticles surface-treated with an ionic surfactant to wash the silver nanoparticles to be fixed to the surface of the fiber by chemical action together with physical adhesion by a binder. Durability can be remarkably improved. In addition, by using a binder and an organosilicon quaternary ammonium having an optimal combination with silver nanoparticles surface-treated with an ionic surfactant, it is possible to improve laundry durability and antibacterial properties. In addition, by minimizing the amount of binder used, it is possible to exhibit excellent antimicrobial effect without degrading physical properties such as the feel of fibers.

The present invention also provides a functional fiber treated with such a fiber processing agent.

The functional fiber may be prepared by mixing and spinning a fiber processing agent composition at the time of direct yarn production, or may be prepared by treating the fiber processing agent composition at post-processing after fabric production.

The processing method of the fiber processing agent to the fiber is not particularly limited and can be carried out according to a conventional method. Dip the fiber material in the fiber processing agent composition diluted as described above and heat it to 100 ° C. or more to reduce the silver nanoparticles, the main component of the processing agent according to the present invention, to the fiber material, or to soak the fiber material at room temperature of 20 to 30 ° C. And heat treatment such as high temperature steam heat treatment can be used for dust reduction.

2 is a process diagram briefly showing a post-processing process for producing a functional fiber according to an embodiment of the present invention. In FIG. 2, 1 represents a sample fabric, 2 represents a storage bath of a post-processing agent and a fabric softener, 3 represents an angle, 4 represents a heat-setting, and 5 represents a processed sample.

Referring to the post-processing treatment for the sample with reference to the process diagram of Figure 2, the fiber material is immersed in the fiber processing agent composition to maintain a certain level of pick-up rate, then taken out of the treatment bath and squeezed and heat-set at 170 to 180 ℃ By carrying out, the functional fiber excellent in washing durability and antibacterial property can be manufactured.

The fiber processing agent composition is preferably used after dilution with water in the process of processing to the fiber. When processing the natural cotton fibers, it is preferable to dilute the fiber processing agent composition to 1% by volume, In the case of synthetic fibers, it is preferable to dilute to 3% by volume.

The kind and shape of the fiber material which can be processed by the method according to the present invention are not particularly limited. For example, any fiber material can be processed, such as staple fiber, such as cotton, polyester, and polyamide, a continuous short fiber, a woven fabric, a knit fabric, and a cotton fiber. In addition, other processed textile materials such as dyeing and white textile materials are possible.

Hereinafter, preferred examples and comparative examples of the present invention are described. However, the following examples are only one preferred embodiment of the present invention and the present invention is not limited to the following examples.

Example  1. Preparation of Textile Processing Composition

45 ml of N, N-dimethyloctadecylamine and 27.35 ml of 3- (chloropropyl) trimethoxysilane were added to a 500 ml four-neck flask, followed by mixing under N ₂ atmosphere. The filtrate obtained by filtration with a filter was washed with methanol and then methanol was evaporated and removed to prepare dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride.

The prepared dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride was dissolved in 100 ml of methanol to prepare a 10% by volume dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride solution.

4 ml of 1000 ppm silver nano sol (nano silver ^® , manufactured by Phoenix PDE, South Korea) in which silver nano particles having an average particle diameter of 5 nm were dispersed, 10 vol% of dimethyloctadecyl prepared and diluted above [3- (trimethoxy 10 ml of a silyl) propyl] ammonium chloride solution and 986 ml of a binder (BIO-PSS5 ^® , manufactured by Nanoenc & K Corp., Korea) were mixed, followed by stirring for 30 minutes to prepare a fiber processing composition.

Example  2 to 8. Preparation of Textile Processing Agent Composition

The content of the silver nano sol, the organosilicon-based quaternary ammonium salt and the binder was changed as shown in Table 1 to prepare a fiber processing agent composition according to Examples 2 to 8.

Example Binder (ml) 10% by volume organosilicon quaternary ammonium salt solution (ml) 1000ppm silver nano sol (ml) Example 1 986 10 4 Example 2 990 5 5 Example 3 992 3 5 Example 4 994 2 4 Example 5 995 One 4 Example 6 996 2 2 Example 7 997 2 One Example 8 998 One One

Comparative example  1-4. Preparation of Textile Processing Composition

Content of silver nano sol, organosilicon-based quaternary ammonium salt (dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride, ACROS Inc.) and binder (BIO-PSS5 ^® , manufactured by NANONCK Corp., Korea) Modified as shown in Table 2 below to prepare a fiber processing composition according to Comparative Example 1-4.

Binder (ml) 10% by volume organosilicon quaternary ammonium salt solution (ml) 1000 ppm silver nano sol (ml) Comparative Example 1 995.6 0.4 4 Comparative Example 2 995.0 One 4 Comparative Example 3 995.0 One 4 Comparative Example 4 995.0 One 4

Dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride in Example 1 and Comparative Example 1 was analyzed by gas chromatography. The results are shown in FIGS. 1A and 1B.

FIG. 1A is a gas chromatography measurement result of dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride in Example 1, and FIG. 1B is a dimethyloctadecyl [3-B of Comparative Example 1 obtained commercially. Gas chromatography measurement results for (trimethoxysilyl) propyl] ammonium chloride.

As a result of crystallization from the gas chromatography measurement results of FIGS. 1A and 1B, the amine content of the dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride prepared in Example 1 was 4 mol%. In the case of dimethyloctadecyl [3- (trimethoxysilyl) propyl] ammonium chloride used in Comparative Example 1, the amine content was 7 mol%. From this, it was confirmed that the organosilicon-based quaternary ammonium salt prepared by the production method of the present invention contained a lower content of unreacted amine that may lower the durability and antibacterial power during fiber processing.

Experimental Example  One

The fiber processing agent composition prepared in Example 1 was diluted with water to a concentration of 10% by volume, 5% by volume, 1% by volume, 0.1% by volume, and 0.01% by volume, and then allowed to stand for 1 hour to form layers and precipitates. Whether or not was observed.

As a result, there was no delamination and sediment formation in the fiber processing agent composition diluted to various concentration ranges.

Experimental Example  2

A plain weave fabric having a warp density of 40's, a weft yarn of 40's, a warp density of 136 OL / 2.54 cm, and a weft density of 72 OL / 2.54 cm was used as a sample.

The fiber processing agent composition of the present invention was treated to the sample through a post-processing process of the fiber as shown in FIG. After diluting each of the fiber processing agent compositions prepared in Examples 3 to 7 with water at a concentration of 3% by volume, the sample was immersed in a mixed solution mixed with a conventional fabric softener to maintain a pickup rate of 70%, followed by a treatment bath. It was squeezed out of and then heat-fixed at 170 to 180 ° C.

The processed samples were evaluated for color, hand, and antimicrobial properties as shown below. The results are shown in Table 3 below.

(1) color evaluation

The processed samples were visually observed for color, and evaluated in four grades as follows.

× bad △ normal

○ Excellent ◎ Very good

(2) tactile evaluation

The touch was evaluated by touching the processed sample by hand. Evaluation was divided into four grades as follows.

× bad △ normal

○ Excellent ◎ Very good

(3) antimicrobial evaluation

Antimicrobial activity after washing the processed sample 50 times (bath ratio: 30: 1, detergent concentration 0.2% by volume, room temperature, once washing cycle: washing 5 minutes-dehydration-rinsing 2 minutes-dehydration-rinsing 2 minutes-dehydration-drying) Was evaluated.

At this time, the antimicrobial evaluation was performed according to the Korea Apparel Testing and Research Institute (KATRI) using staphyloccus aureus (American Type Culture collrection No. 6538) as a test bacterium. The antimicrobial activity was evaluated by dividing into four grades from the results.

× bad △ normal

○ Excellent ◎ Very good

Example touch color Antibacterial after 50 washes 3 △ △ ◎ 4 ○ ○ ◎ 5 ◎ ◎ ◎ 6 ○ ○ ○ 7 △ ○ △

As shown in Table 3, the samples treated with the fiber processing agent composition according to the present invention showed excellent effects in terms of touch, color and antimicrobial properties.

Experimental Example  3.

The antimicrobial activity was evaluated after the fiber processing composition of Example 5 and Comparative Example 1-4 was post-processed with respect to the sample.

The evaluation of the antimicrobial activity is 40's warp yarn, 40's warp yarn, 136ol / 2.54cm warp density, 72ol / 2.54cm weft density, except that the refined bleached and mercerized 100% polyester was used as a sample. It carried out by the same method as the evaluation of antimicrobial activity of 2 (3).

In Table 4, laundry: internal, test: KATRI is the result of the official test report that 50 washings are done internally and tested by antibacterial activity using Staphylococcus aureus from KATRI (Korea Apparel Testing and Research Institute). , Washing: KATRI refers to the results of both the washing and the antibacterial activity conducted by KATRI. The results are shown in Table 4 below.

Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Example 5 Washing: The inside, examination: KATRI Washing: KATRI examination: KATRI Antimicrobiality (%) 72.5 99.2 95.7 86.5 99.3 99.8

As shown in Table 4, it can be seen that Example 5 using the processing agent composition of the present invention including the silver nano sol, quaternary ammonium salt and binder of the present invention exhibited superior antimicrobial activity compared to Comparative Examples 1-4. .

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Functional fibers treated with the fiber processing agent composition of the present invention exhibit excellent laundry durability and antibacterial properties.

Claims (15)

Silver nano sol; Organic silicon-based quaternary ammonium salt solution having an unreacted amine content of 5 mol% or less; And bookbinder Fiber processing agent composition comprising a. The method of claim 1, The silver nano sol is a fiber processing agent composition comprising silver particles in a concentration of 500 to 2000ppm. The method of claim 2, Wherein said silver particles have an average particle diameter of 2 to 30 nm. The method of claim 2, Wherein said silver particles are surface treated with an ionic surfactant. delete The method of claim 1, The organic silicon-based quaternary ammonium salt is a fiber processing agent composition having the structure of Formula 1 [Formula 1]

(Wherein R ₁ , R ₂ and R ₃ are each independently an alkyl group having 1 to 18 carbon atoms, R ₄ , R ₅ and R ₆ are each independently an alkyl group having 1 to 4 carbon atoms, and X is chlorine, fluorine or bromine) , Iodine, carboxylic acid and sulfonic acid, n is an integer from 1 to 6) The method of claim 6, The organosilicon quaternary ammonium salt is dialkyl octadecyl [(3-trialkoxysilyl) alkyl] ammonium chloride. The method of claim 7, wherein The organosilicon-based quaternary ammonium salt is prepared by a manufacturing method comprising the step of reacting an alkylamine and a haloalkylalkoxysilane in a nitrogen atmosphere. The method of claim 1, The organosilicon-based quaternary ammonium salt is a fiber processing agent composition comprising 0.01 to 10% by volume relative to the total volume of the processing agent composition. The method of claim 1, The binder is selected from the group consisting of acrylic, polyurethane, copolymers thereof and mixtures thereof. The method of claim 1, Wherein said binder comprises from 970 to 998 volume ‰ relative to the total volume of the fiber processing agent composition. The method of claim 1, The fiber processing agent composition further comprises a surfactant. The method of claim 12, Wherein said surfactant is included in a weight ratio of binder: surfactant = 7: 1 to 5: 3. The method of claim 12, The surfactant is selected from the group consisting of polyoxyethylene alkyl ether, fatty acid alkanolamine, alkyl polyglucoside, amine oxide, alkenylpolyethylene alkyl ether, sugar ether, and mixtures thereof. An antimicrobial fiber prepared by treating with the fiber processing composition according to any one of claims 1 to 4 and 6 to 14.

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