KR100755019B1 - Antibiotic composition for fiber and cloth coated with the same - Google Patents

Abstract

A composite for antibiotic fiber and a fabric coated with the composite are provided to improve antibiotic performance and far-infrared radiating performance of the fabric, by coating the fabric with a mixed solution of a warmwood extract and silver nanoparticles. A composite for antibiotic fiber is manufactured by preparing a mixed solution mixing a decolorized warmwood extract of 50-70 wt% and a silver nanoparticle solution of 30-50 wt%, and mixing loess of 1-5 wt% and a natural adhesive of 1-5 wt% based on the mixed solution of 100 wt% into the mixed solution. The warmwood extract has a water content of 20-70 wt%. In the silver nanoparticles solution, silver nanoparticles of 1.0-20 nm are contained in water at 200-10,000 ppm.

Description

Antibiotic composition for fiber and cloth coated with the same}

The present invention relates to a composition for antimicrobial fibers and fabrics using the same, and more particularly, to an antimicrobial effect as a fiber product coated with a composition prepared using environmentally friendly materials such as mugwort extract, silver nanoparticles, ocher and natural adhesives. The present invention relates to a composition for antimicrobial fibers and a fabric coated thereon, characterized in that excellent.

Since ancient times, wormwood has various effects in the oriental medicine, and according to the condition of the body disease, women with gynecological diseases have a significant effect by taking a bath or wormwood steamed with wormwood or having bleeding or muscle pain. Man is well known for its effectiveness in anti-inflammatory analgesics by spreading the mugwort well and spreading it evenly in places where there is a blood clot or muscle pain. As a technology developed to apply such medicinal effects to fibers, a patent has already been registered for a method for producing an antimicrobial composition by adding a synthetic resin adhesive to the mugwort mixture.

 In the case of silver nanoparticles, the antimicrobial effect has already been demonstrated, and various methods for applying it to fabrics have been developed and patents have been filed. However, most of these patents use synthetic resin adhesives to coat silver nanoparticles on fabrics. have.

As described above, in order to provide antimicrobial functionality to a fabric directly contacting the human body, the antibacterial effect is generated by mixing a component of mugwort extract or silver nanoparticles with a synthetic resin and coating the fabric onto the fabric. Not only does it not provide any beneficial functionality to the human body, but the synthetic resin adhesive used to coat mugwort extracts or silver nanoparticles on fabrics can easily cause allergy in sensitive skin. There is concern.

Therefore, in order to solve the above problems, the present invention, after the wormwood is mixed with water and extracted by applying heat to the fabric using a solution mixed with wormwood extract and silver nanoparticles excellent antimicrobial effect to give off the wormwood aroma The antimicrobial fiber is characterized in that the antimicrobial activity of the mugwort and silver nanoparticles by the coating to improve the antimicrobial activity, and by using ocher mixed with the mixture, it has the effect of health promotion by far-infrared radiation emitted from the ocher. It is an object to provide a composition for coating and a fabric coated with the same.

And the present invention as an adhesive for coating the mugwort extract, silver nanoparticles and ocher on the fabric, by using a natural adhesive such as glue, beetle without the synthetic resin adhesive, even when the fabric is in contact with people with weak skin ( It is another object to provide a composition for antimicrobial fibers and fabrics coated with the same, characterized in that the environmentally friendly environment is less likely to occur.

The composition of the antimicrobial fiber composition according to the present invention for achieving the above object is as follows.

In the composition for antimicrobial fibers,

To prepare a mixed solution of 50 to 70 parts by weight of decolorized mugwort extract and 30 to 50 parts by weight of silver nanoparticle solution,

And it is characterized by mixing 1 to 5 parts by weight of yellow soil and 1 to 5 parts by weight of the natural adhesive with respect to 100 parts by weight of the mixed solution.

Mugwort extract emanating a subtle wormwood fragrance according to the present invention is added to the water after washing 1 kg of dried wormwood with water in 9 ~ 10 kg with water to heat the temperature of 100 ~ 150 ℃ under a pressure of 1 ~ 2 kg / ㎠ Prepare mugwort extract. The mugwort extract is preferably a water content of 20 to 70% by weight. The mugwort extract prepared above is a solution of dark green color, so it may be used as it is or may be subjected to a process of decolorizing green color using activated carbon in order to remove green color. If the moisture content of the mugwort extract is less than 20% by weight, the concentration cost for reducing the moisture content is increased, and if the moisture content is more than 70% by weight, the aroma of the mugwort may be weak as well as the antibacterial performance may be lowered.

In addition, the silver nanoparticle solution according to the present invention preferably contains 200 to 10,000 ppm of silver (Ag) nanoparticles having a size of 1.0 to 20 nm. If the diameter of silver in the silver nanoparticle solution is less than 1.0 nm, the manufacturing cost of the silver nanoparticles is increased, if the diameter exceeds 20 nm, the silver nanoparticles are not uniformly dispersed there is a fear that it may not exhibit sufficient antibacterial effect. In addition, when the concentration of silver nanoparticles in the silver nanoparticles solution is less than 200 ppm, a large amount of silver nanoparticles solution should be used to maintain the silver concentration compared to the mugwort extract, which may cause discoloration of the fiber. However, when the concentration of silver nanoparticles exceeds 10,000 ppm, not only the cost of concentration increases but also a large amount of stabilizer is required to make the nanonized silver stable without reaction or entanglement, which may cause discoloration when applied to the fiber. There is concern.

The method for producing silver nanoparticles used in the present invention is a method of refining silver from silver salt using an adsorption surfactant (hereinafter referred to as 'adsorption method') and a polymer-silver (Ag) nanocomposite using silver salt and other polymers. The manufacturing method (henceforth a "composite method") is generally used.

In the adsorption method, fine silver particles are prepared as fine silver particles from silver salt using an adsorption surfactant. That is, in the adsorption method, when silver ions in the silver salt are reduced to silver particles, the size and distribution of the metal particles are controlled by the surfactant. When preparing silver particles using silver salt, aqueous solution of surfactant is added and due to the inherent nature of the adsorbent, it is adsorbed on the surface of silver particle nucleus in which surfactant is formed in the solution in which metal particles are formed. Is prevented. Therefore, the reduced metal particles are delayed or blocked from binding to other metal particle nucleus surfaces, thereby producing metal particles with uniform size distribution and fine particles.

In the adsorption method, silver salts and surfactants such as nitrates (AgNO ₃ ) are used, and metal ion reducing agents such as hydrazine, lithium aluminum borohydride, sodium borohydride and ethylene oxide are also added. The method for producing fine silver particles by such an adsorption method is described in detail in Korean Patent No. 375525.

On the other hand, in the method of refining silver particles by the composite method, the silver particles are refined by forming a polymer-silver polymer nanocomposite using silver salt and a polymer material. Specifically, in the composite method, silver particles are prepared by first mixing silver or silver oxide salts, isopropyl alcohol, ethanol and / or ethylene glycol solvents with water and a polymer stabilizer, purifying them, forming a precipitate, and removing the solvent. Are manufactured.

Silver salts include silver nitrate (AgNO ₃ ), silver perchlorate (AgClO ₄ ), silver sulfate (AgSO ₄ ) or silver acetate (CH ₃ COOAg) and polyethylene, polyacrylonitrile, polymethylmethacrylate, poly Urethane, polyacrylamide, polyethylene glycol, polyoxyethylene stearate, etc. are used. Furthermore, an emulsion can be obtained using surfactants, such as polyoxyethylene sorbitan monooleate, when mix | blending said silver salt. The manufacturing method of the silver nanocomposite by the complex method is described in detail in Korean Patent No. 484506.

In the adsorption method, silver salts, surfactants, and metal ion reducing agents are used. In the composite method, silver salts, polymer stabilizers, surfactants, solvents, and the like are used. The anionic portion of the silver salt used, i.e. NO ₃ ^- for silver nitrate, Cl ^-for silver chloride, SO ₄ ^-for silver sulfate, CH ₃ COO ^-for silver acetate, etc., polymer stabilizers, surfactants, The metal ion reducing agent, the non-aqueous solvent and the like remain in the silver nanoparticle solution as a product after the fine silver particle formation reaction.

When the silver nanoparticle solution used in the present invention contains silver (Ag) and other components except water, the silver nanoparticle solution is mixed with wormwood extract and loess and applied to fibers. Other ingredients except water and water act as impurities that adversely affect the properties of the fiber and must be removed.

Accordingly, the present invention provides a silver nanoparticle solution from which impurities such as anion portion, surfactant, metal ion reducing agent, and polymer stabilizer are removed from silver salt so as to prevent discoloration and durability of the fiber.

Impurities such as stabilizer and salt ions contained in the silver nanoparticle solution used in the present invention can be removed by a method using an ion exchange resin or other various methods.

On the other hand, the ocher used in the present invention is preferably added 1 to 5 parts by weight of ocher with respect to 100 parts by weight of the mixed solution of mugwort extract and silver nanoparticle solution. If the content of ocher is less than 1 part by weight, there is a fear that the long-term antimicrobial effect is lowered, and if it exceeds 5 parts by weight, the adhesion with the fabric may be reduced. The size of the ocher particles used in the present invention is preferably 100 mesh or more. If the size of the ocher particles is less than 100 mesh, the size of the ocher particles is large and not uniform, which may reduce adhesion to the fabric.

In general, ocher emits far-infrared wavelengths of around 9.0 μm and is similar to 9.4 μm emitted by the human body, and when the wavelengths of far-infrared rays are similar, it is known to resonate and resonate human cells to remove wastes in the body and to activate metabolism. have.

In the present invention, it is preferable to mix 1 to 5 parts by weight of the natural adhesive with 100 parts by weight of the mixed solution of the mugwort extract and the silver nanoparticle solution as an adhesive for attaching the silver nanoparticles and loess to the fabric. If the amount of the natural adhesive is less than 1 part by weight, the silver nanoparticles and the loess may not adhere well to the fabric due to the lack of the amount of the natural adhesive, and if the amount is more than 5 parts by weight, the amount of the natural adhesive is excessive. There is a fear that the feel of the fabric is lost. Natural adhesives usable in the present invention is preferably used to select one from the burr, seaweed or glue. In the present invention, when the mixture of the mugwort extract and the silver nanoparticles solution is put a natural adhesive, beetle, seaweed grass or glue paste and heated, the natural adhesive is dissolved in the mixed solution to have the adhesiveness.

As described in detail above, the antimicrobial fiber composition according to the present invention maintains the content of silver nanoparticles contained in the composition of about 50 to 6000 ppm when it is prepared by mixing all the mugwort extract, the silver nanoparticle solution, and the natural adhesive. In this case, the effect of the antimicrobial activity can be exerted.

On the other hand look at the configuration of the fabric coated using the antimicrobial fiber composition according to the present invention.

The fabric coated with the composition for antimicrobial fibers according to the present invention is characterized in that the heat-impregnated with a roller by impregnating 5 to 10% by weight of the composition for antimicrobial fibers in 90 to 95% by weight of the fabric.

In the present invention, the impregnation amount of the composition for antimicrobial fibers coated on the fabric is preferably immersed in proportion to the weight of the fabric in consideration of the thickness rather than the area of the fabric. In the present invention, the immersion amount of the composition for antimicrobial fibers is preferably impregnated with 5 to 10% by weight of the composition for antimicrobial fibers in 90 to 95% by weight of the fabric. When the content of the antimicrobial fiber content is less than 5% by weight, the antimicrobial performance and far-infrared radiation ability may be deteriorated due to the lack of silver nanoparticles, mugwort extract, and ocher content. The antimicrobial activity is not significantly improved in proportion to the increase in the content of the nanoparticles and mugwort extract, there is a concern that the economy is lowered due to the increase of the silver nanoparticles.

The crimping conditions of the roller in the above is to press the fabric using a roller at a pressure of 1 ~ 3 kg / ㎠. If the pressure is less than 1 kg / ㎠, the composition for the antimicrobial fiber does not penetrate deep into the micropores of the fabric, there is a fear that the silver nanoparticles and loess will not adhere to the fabric, if the pressure exceeds 3 kg / ㎠ Due to the overpressure applied to the fabric, the antimicrobial composition does not penetrate into the fabric and flows out to reduce the content of silver nanoparticles and loess applied to the fabric, thereby degrading antimicrobial performance and far-infrared radiation ability. There is.

And the fabric coated with the antimicrobial fiber composition is dried for 30 to 60 minutes at a temperature of 50 ~ 150 ℃. If the drying temperature is less than 50 ℃ or the drying time is less than 30 minutes, the coating liquid of the antimicrobial fiber composition coated on the fabric may not be completely dried, the drying temperature exceeds 150 ℃ or drying time When it exceeds 60 minutes, the coating liquid of the composition for antimicrobial fibers coated on the fabric is sufficiently dried, but there is a concern that a problem of economical deterioration due to energy consumption may occur. The drying method may be selected as appropriate drying method, such as general hot air drying, near infrared drying or far infrared drying.

The fabric coated with the antimicrobial fiber composition according to the present invention has excellent antibacterial ability by extracting wormwood and silver nanoparticles, and has excellent far-infrared radiation ability due to ocher, so that it is in direct contact with the skin, such as bras, sanitary products, etc. It can be used for purposes.

Hereinafter, the configuration of the present invention in detail through the following examples.

1. Preparation of antimicrobial fiber composition

(Examples 1 to 5 and Comparative Examples 1 to 5)

1 kg of dried mugwort was washed with water, placed in a container, 10 kg of water was added thereto, and heated to a temperature of 100 ± 5 ° C. under normal pressure to obtain a mugwort extract having a water content of 65% by weight. And as shown in Table 1 below, mugwort extract, a solution containing 200 ppm silver nanoparticles, more than 100 mesh ocher and bead was added to prepare a composition for the antimicrobial fiber.

                                                              (Unit: parts by weight) Ingredient Example Comparative example One 2 3 4 5 One 2 3 4 5 Wormwood Extract 50 55 60 65 70 20 100 100 - 80 Silver nanoparticle solution 50 45 40 35 30 80 - - 100 20 ocher 3 3 3 3 3 3 3 3 3 3 isinglass One 2 3 4 5 0.5 One 2 3 5

2. Preparation of Fabric Coated with Antimicrobial Composition

7 wt% of the antimicrobial fiber composition prepared according to the contents of [Table 1] above was impregnated in the fabric under the same conditions, followed by compression treatment using a roller at a pressure of 2 kg / cm 2, followed by 30 at a temperature of 100 ° C. Drying for minutes prepares a fabric coated with the composition for antimicrobial fibers.

3. Testing of Textiles Coated with Antimicrobial Compositions

The fabric coated with the composition for antimicrobial fibers was washed and dried at a temperature of 40 ° C. according to the method of KS K 0465, and the results of measuring the antimicrobial, discoloration, adhesion, and fragrance are as shown in the following [Table 2]. .

end. Antimicrobial Evaluation (E. coli, Staphylococcus aureus)

Escherichia coli in normal incubator at 35 ± 1 ℃ coil ATCC 25922 ) and Staphylococcus aureus ATCC 6538 ) is incubated for 20 hours, and the culture solution is diluted 20,000 times with sterile phosphate buffer, and then 1 ml is added to 2 × 2 cm specimens of the fabric coated with the antimicrobial fiber composition and stored at 25 ° C. for 24 hours and then taken out. . After that, the cells were incubated again for 48 hours in sterilized agar medium and irradiated with a lithographic plate culture method (35 ± 1 ℃, 2 days culture) to measure the number of viable cells. Then, the sterilization rate (%) was calculated according to the following formula. In the case of 99.9% or more,?, In the case of 99% or more,?, In the case of 80% or more,?

Sterilization rate (%) = [(diluent viable count-number of viable cells after preservation for 24 hours) / diluent viable count] × 100

I. Discoloration evaluation

After leaving the fabric coated with the antimicrobial composition for 10 days, measuring the saturation using a spectrophotometer JP7200C (Juki) and measuring saturation. It evaluated as x.

All. Adhesion evaluation

When the adhesion area of silver nanoparticles and ocher was measured on the surface by using transmission electron microscopy (TEM), the adhesion area of silver nanoparticles and ocher was 98% or more, ◎, 95% or more. It evaluated as case X

la. Odor evaluation

In the case of scent, ◎, in the case of no scent, evaluated as x.

division Example Comparative example One 2 3 4 5 One 2 3 4 5 Antibacterial ^{1 )} ◎ ◎ ◎ ○ ○ ◎ × × ◎ △ Discoloration ◎ ◎ ◎ ◎ ◎   ○ ◎ ◎ ○ ◎ Adhesion ◎ ◎ ◎ ◎ ◎ ○ ◎ ◎ ◎ ◎ Odor ^{2 )} ◎ ◎ ◎ ◎ ◎ × ◎ ◎ × ◎

Note 1) Use 20 washed specimens.

   2) Use 10 washed specimens.

According to the contents of [Table 2], in the case of Examples 1 to 3 in the evaluation of antibacterial performance, the sterilization performance of E. coli and Staphylococcus was evaluated to be 99.9% or more, and Examples 1 to 3 in Examples 4 and 5. As the content of silver nanoparticles decreases, the sterilization performance of Escherichia coli and staphylococcus was evaluated to be 99.0% or more. It was evaluated to be less than 800%, and even in Comparative Example 5 containing 20 parts by weight of the silver nanoparticles was evaluated to be less antimicrobial compared to Examples 1 to 5.

In the evaluation of discoloration performance, in Examples 1 to 5, when the silver nanoparticle solution was mixed with the appropriate amount of the antimicrobial fiber composition, the saturation was measured. In Examples 1 and 4, when the silver nanoparticle solution is mixed in the composition for the antimicrobial fiber, the saturation was measured, and the color change performance was lower than that of the example, which corresponds to 5% or less of the initial chromaticity.

In the evaluation of adhesion performance, in Examples 1 to 5, when the appropriate amount of the natural adhesive agent beepule is used in the composition for the antimicrobial fiber, the adhesion area of the silver nanoparticles and the loess on the specimen was evaluated to be 98% or more. In case 1, the adhesion area of the silver nanoparticles and the loess was more than 95% due to the lack of the content of the beepule in the composition for the antimicrobial fiber, and thus the adhesion performance was slightly lower than that of the other specimens.

In the evaluation of the fragrance performance, Examples 1 to 5 contained the appropriate amount of mugwort extract in the composition for antimicrobial fibers, so that after the sample was washed 10 times, the mugwort aroma is generated, whereas in Comparative Example 1 for the antimicrobial fibers Mugwort aroma was initially generated as the composition contained less than the appropriate amount of mugwort extract, but after washing the specimen ten times, mugwort aroma was hardly generated. In Comparative Example 4, mugwort aroma was not contained. Did not occur at all.

Therefore, in the case of Examples 1 to 5 as shown in the performance evaluation of [Table 2] it was shown that all of the antimicrobial, discoloration, adhesion and odor excellent, whereas in the case of Comparative Example 1 of the mugwort extract and the content of Due to the lack of fragrance and adhesion performance is somewhat reduced, and due to the excessive content of silver nanoparticles can be seen that the color fading is slightly reduced. And in the case of Comparative Examples 2 and 3 is not mixed with silver nanoparticles antibacterial performance, in the case of Comparative Example 4 due to the excessive content of silver nanoparticles discoloration is somewhat reduced, wormwood extract is not added to the wormwood smell It can be seen that the fragrance performance is not lowered, and in the case of Comparative Example 5, the antimicrobial performance was somewhat reduced due to the lack of silver nanoparticles.

As described above, the present invention has proved its superiority through the above embodiments, but the present invention is not necessarily limited only to the above embodiments, and various modifications may be made without departing from the technical spirit of the present invention. Substitutions, modifications and variations are possible.

The present invention having the above constitution brings a synergistic effect of antimicrobial activity by the action of antimicrobial activity of silver nanoparticles with a scent of wormwood by coating a solution prepared by mixing the mugwort extract and silver nanoparticles on a fabric, and By mixing with the mixture, there is an effect of health promotion by far-infrared radiation emitted from loess, and by using natural adhesives such as glue and burr as an adhesive for coating wormwood extract, silver nanoparticles and loess on the fabric. In addition, there is an environmentally friendly advantage that there is no fear of allergies, even when the fabric is in contact with people with weak skin.

Claims (7)

In the composition for antimicrobial fibers containing silver nanoparticles, To prepare a mixed solution of 50 to 70 parts by weight of decolorized mugwort extract and 30 to 50 parts by weight of silver nanoparticle solution, And 1 to 5 parts by weight of ocher and 1 to 5 parts by weight of the natural adhesive, respectively, based on 100 parts by weight of the mixed solution. The method of claim 1, The mugwort extract is a composition for antimicrobial fibers, characterized in that the water content of 20 to 70% by weight. The method of claim 1, The silver nanoparticle solution is a composition for antimicrobial fibers, characterized in that containing 200 ~ 10,000 ppm of silver nanoparticles of 1.0 ~ 20 nm size. The method of claim 1, The natural adhesive is an antimicrobial fiber composition, characterized in that used by selecting one from the burr, seaweed or glue. 90 to 95% by weight of the fabric is impregnated with a composition for antimicrobial fibers prepared according to claims 1 to 5 5 to 10% by weight, and then compressed by a roller and then dried by the composition for antimicrobial fibers, characterized in that the coating textile. The method of claim 5, Compression of the roller is a fabric coated with an antimicrobial composition, characterized in that 1 ~ 3 kg / ㎠. The method of claim 5, The heat drying is a fabric coated with an antimicrobial composition, characterized in that for 30 to 60 minutes to dry at a temperature of 50 ~ 150 ℃.