KR101742025B1

KR101742025B1 - An antibacterial towel and manufacturing method thereof

Info

Publication number: KR101742025B1
Application number: KR1020150137013A
Authority: KR
Inventors: 김흥섭
Original assignee: 주식회사 씨앤제이타올
Priority date: 2014-09-26
Filing date: 2015-09-25
Publication date: 2017-05-31
Also published as: KR20160037116A

Abstract

The present invention relates to a method for producing an antibacterial towel. More particularly, the present invention relates to an antimicrobial towel for producing an antimicrobial agent by adding an antimicrobial agent to a process of manufacturing a towel through a dyeing and dehydrating process. In the present invention, a towel mainly composed of cotton includes silver colloid particles, titanium dioxide nanoparticles, a dispersion stabilizer, and an antimicrobial agent including water.

Description

An antibacterial towel and manufacturing method comprising:

The present invention relates to a method for producing an antibacterial towel. More particularly, the present invention relates to an antimicrobial towel for producing an antimicrobial agent by adding an antimicrobial agent to a process of manufacturing a towel through a dyeing and dehydrating process.

Towels used in the home, that is, after washing the fabric towels, there is a lot of odors to occur. Especially in summer.

To prevent this, a fiber treatment method for enhancing the antibacterial power or the sterilizing power has been disclosed.

Korean Patent Laid-Open Publication No. 2004-88008 discloses a disposable diaper containing nanosilver, wherein the nanosilver is added for the purpose of preventing bacterial growth and inflammation in disposable diapers. Specifically, nanosilver solutions or powders are prepared by mixing disposable diaper materials.

As another example, Korean Utility Model Registration No. 360135 discloses a titanium dioxide photocatalyst capable of exhibiting antimicrobial and deodorizing action when irradiated with ultraviolet rays emitted from general sunlight or fluorescent lamps, and an antimicrobial agent containing a silver- Specifically disclosed is a method for dripping titanium tetrachloride into distilled water or ion-exchanged water contained in a container, adding silver nitrate thereto, and adding ammonia water to the mixture to adjust the pH of the mixture to 7 The resulting hydroxide is pulverized by adding distilled water to the crystallized mixture to obtain an anatase type disilicide containing silver component, The nanobacterial deodorant obtained from titanium is sprayed or sprayed In a way that has been manufacturing the antibacterial deodorant hygiene. Here, antimicrobial deodorant hygiene products include sheets, pillows, comforters, and bed covers.

1. Korean Registration Practical Utility 20-379472 (Name: silver nano antibacterial towel) 2. Korean Patent Laid-Open No. 10-2006-130864 (name: antimicrobial towel and its use method)

The present invention provides a towel and a method for manufacturing the towel, wherein the antibacterial agent is put into a predetermined stage during the manufacturing process of the towel so that the antibacterial power can be maintained for a long time when the user uses the towel.

The present invention encompasses a cotton-based towel comprising an antibacterial agent comprising silver colloid particles, titanium dioxide nanoparticles, a dispersion stabilizer, and water.

Yet another aspect of the present invention is a method for bleaching cotton yarn, comprising the steps of: bleaching cotton yarn by adding a foaming agent, a water purification agent, a clearing agent, a hydrous stabilizer, caustic soda, hydrogen peroxide, and water; A acidification step of adding glacial acetic acid, a water-neutralizing agent and water to the cotton yarn bleached by the bleaching step, and a neutralizing step; Dyeing step of adding a water purification agent, a dye, sodium carbonate, sodium sulfate and water to the neutralized cotton yarn; An acid treatment step of adding glacial acetic acid and water to the dyed cotton yarn; A soaping step of putting the shopping agent and the water into the acid-treated cotton yarn; An antimicrobial treatment step of adding the antimicrobial agent according to claim 1 to a cotton yarn having undergone the soaking step; Subjecting the antimicrobially-treated cotton yarn to a flexible treatment by injecting a flexible body and water; And a drying step of drying the softened cotton yarn.

The name means that the antimicrobial agent is put into a predetermined stage during the manufacturing process of the towel, so that the antibacterial ability of the user is maintained for a long time.

1 is a photograph of a sample for the experiment of the present invention
2 is a photograph showing a photograph taken in Comparative Example 1
Fig. 3 is a photograph showing a photograph of Experimental Example 1 according to the present invention
4 is a photograph showing the photograph of Comparative Example 2
FIG. 5 is a photograph showing a photograph of Experimental Example 2 according to the present invention

The dyeing process of the towel is preceded by pretreatment, dyeing, post-treatment and drying.

Among the natural fibers, the cotton fiber of cotton or hemp fiber originating from plants contains 4-5% of impurities such as packing, wax, fat, protein, pigment and ash in the cotton.

Refinement and bleaching as it is originally applied are only for special use, but the yarn is spun as it is. Cotton yarn contains spinning oil in addition to these natural impurities. In cotton fabrics, a large amount of foams at the time of weaving are further contained. Therefore, each step of refinement and bleaching of cotton is required for morpho-expansive-refining-bleaching. It improves defects such as gloss, hall, and enamel by mother. Moroso generally removes innumerable shorts on the surface of the fabric prior to chemical treatment. Typical processing processes are cotton, cotton, mercerizing, refining, bleaching, dyeing, and finishing.

To extract these arcs from the arc process, the arc is disassembled and removed with water. There are many ways to dissolve pheromones, but the most problematic issue is the removal of starch horns with strong adhesiveness (starch is blue due to urethra and its presence is known). Therefore, in general, a method of glycation and dissolving by an enzyme has been adopted. A commercially available enzyme-based chelating agent is Diastase

It is divided into those containing a maladialastase as a preparation and those having a bacterial diastase. The optimal temperature for these species is 45-50, 65-70, and the pH is 5.0-5.5 and 6.2-7.0. At this time, if the wetting agent is added, the exposing effect can be further increased. There is also a high-speed method by sodium acetylacetonate. PVA subject matter is treated with detergent, treated, washed with hot sodium hydroxide solution and then completely removed. Typical drugs used as a chelating agent are alkali (caustic soda), oxidizing agents (persulfate, hydrogen peroxide, sodium hypochlorite, etc.), and enzymes. In the case of cotton fabrics, glue is adhered mainly to the slope, and the starch paste (wheat, wheat flour, corn starch, soluble starch, etc.), protein glue (glue, gelatin, etc.), seaweed paste (hearing agent, Etc.), and synthetic cohesive (CMC, PVA).

In the cleaning process, surfactants, enhancers, foam modifiers, rust inhibitors, etc. are used as cleaning agents. Surfactants include sorbitan monolaurate, sorbitan monooleate, sorbitan morolaurate EO 4 mole adduct, sorbitan monolaurate EO 20 mole adduct, and the like. The enhancer is a water softening agent (ethylenediamine tetra sodium acetate (EDTA), nitro tri-sodium acetate (NTA), sodium citrate, sodium tripolyphosphate), an alkaline agent (preserving alkaline solution of tripolyphosphate, caustic soda Sodium carbonate, sodium borate), a low-temperature system of interfacial tension (neutral salts such as manganese chloride and magnesium chloride), and a dispersing agent (such as carboxymethylcellulose). The foam modifier may be selected from the group consisting of lauryl diethanol amide, lauryl dimethyl amine oxide and alkyl alcohol, and a foam reducing agent such as oleic acid soap and poly (oxyethylene-oxypropylene block polymer).

In the mercerization process, NaOH is used, which is a characteristic process of cotton fiber, which makes the wastewater a strong alkali and becomes the main contaminant. Alkali treatment promotes the swelling and structural changes of the cotton fiber, thus enhancing the physical properties, especially gloss, durability and reactivity. Mercerization is an important factor that greatly affects the properties of fabrics such as dyeing. At higher temperatures, the alkaline solution penetrates evenly into the cotton fiber (Duckworth, 1977).

Refining in the refining and bleaching process is the process of removing the packing tin. Pactin is a collective term for peptose and pectic acid, and it accounts for most of the impurities contained in the fiber. When it boils together with alkali, it becomes a pectinate and dissolves. The wax gives light resistance to the fiber, but when it is boiled with alkali for a long time, it becomes an oil and is removed. The lipids together with the wax act to prevent the invasion of the cotton fiber during the growth of the cotton fiber, and when it is boiled with the alkali, it becomes a soap that is soluble. At the same time, the soap has a function of emulsifying and removing the wax together with the coexisting alkali. Protein is also reduced by boiling alkali, which is why refining of the surface is based on treatment with a strong aqueous alkali solution such as sodium hydroxide. At this time, when the surface comes into contact with air, the part is oxidized and becomes oxidized cellulose, which causes embrittlement. Therefore, care should be taken not to make contact with air during boiling. There are many kinds of surface refining methods. Key-to-surface refining by high-pressure refining kiln (Kier) is most commonly performed industrially. As the scouring agent, generally alkali (soda ash, ammonia water, caustic soda, etc.), surfactant (nonionic anion activator), organic solvent (trichlorethylene, picylene) and oxidizing agent (hydrogen peroxide, sodium chlorite) are used.

In the bleaching process, the amount of pigment in the surface is extremely small, but it is likely to be a problem because it is noticeable to the eye. Although the composition is not clear, whichever is bleached by oxidative bleaching, bleaching methods include hypochlorite method, chloric acid method, and hydrogen peroxide method.

In the hypochlorite method, the bleaching powder (CaOC12) is common and recently sodium hypochlorite is used rather than the bleaching powder. In this case, if chlorine remains in the fiber, the fiber may be weakened and yellowing may occur. Therefore, it is necessary to treat with an aqueous solution of a demineralizing agent such as sodium sulphate or sodium sulphate or perform a dechlorination treatment by performing the second step of hydrogen peroxide bleaching. The chlorochloric acid method is relatively low in price, but the fiber strength is relatively large.

In the chlorite method, the surface is slowly heated by adding the sodium chlorite solution to the surface and treated at 80 to 90 ° C. At this time, the pH is gradually adjusted to 3.5 to 4.0 using acetic acid formic acid. In this case, the surface may be after refining, but refining and bleaching may be performed at the same time by adding a surfactant having delignification and depolymerizing action to the bleaching solution. It is also necessary to add a detergent in order to prevent corrosion of the apparatus or to prevent the generation of excessive chlorine dioxide. The chlorite bleaching is characterized by less reduction in strength and lower mass of fibers. There is less residual chlorine than the chlorinated acid method.

In the hydrogen peroxide method, the refined surface is put into a solution of hydrogen peroxide and the pH is adjusted to 10 to 11 with sodium silicate or the like, and the treatment is performed at 80 or more. Hydrogen peroxide is very sensitive to metal ions, especially iron ions, and even if present in trace amounts, it causes cauterization to weaken the surface. However, it has less damage to fiber than hypochlorite method and durability of whiteness is also good, so it is used for bleaching of high quality products.

The chemicals used as bleaching agents include oxidizing bleaching agents (hydrogen peroxide, peracetic acid, sodium hypochlorite, sodium hypochlorite, etc.), reducing bleaching agents (hydrousulfite, acidic sodium sulfite, thiourea dioxide).

In the hydrogen peroxide method, the refined surface is put into a solution of hydrogen peroxide and the pH is adjusted to 10 to 11 with sodium silicate or the like, and the treatment is performed at 80 or more. Hydrogen peroxide is very sensitive to metal ions, especially iron ions, and even if present in trace amounts, it causes cauterization to weaken the surface. However, it has less damage to fiber than hypochlorite method and durability of whiteness is also good, so it is used for bleaching of high quality products. The chemicals used as bleaching agents include oxidizing bleaching agents (hydrogen peroxide, peracetic acid, sodium hypochlorite, sodium hypochlorite, etc.), reducing bleaching agents (hydrousulfite, acidic sodium sulfite, thiourea dioxide).

In the dyeing process, direct dyes, sulfur dyes, and reactive dyes are used as the dyes for the dyes. In the dyeing process, the leveling agent and auxiliary agent are used together with the dye. Sodium phosphate, ammonium sulfate, sodium thiosulfate, surfactant, formalin, ammonium sulfate, ammonia water, Naphthol AS, etc. are used as the leveling agent. .

In such a whole dyeing process, the antimicrobial agent is added prior to softening.

Silver colloid particles were prepared by the alcohol reduction method using 10 g of silver nitrate (AgNO3), 20 g of ethanol and 0.01 g of flavonoid as a dispersion stabilizer at 80 ° C for 5 hours to prepare antimicrobial agent. The colloidal solution is prepared by preparing a silver colloid solution having an average particle size of 20 to 50 nm and a concentration of 50,000 ppm and diluting with distilled water to a concentration of 10 to 5,000 ppm. Then, a solution of 35 g of titaniumethoxyorthotitanate (TEOT) and ethanol was added using a silver colloid solution diluted to 500 ppm with water as a solvent, and a hydrolysis and condensation reaction was carried out at room temperature using a sol-gel method . At this time, 0.5 g of HNO 3 is used as a catalyst for the hydrolysis reaction. The reaction temperature is heated to 60 to 85 캜 and stirred for 4 to 8 hours to synthesize an antimicrobial agent containing milky white titanium dioxide particles having an average particle size of 1 to 100 nm in a concentration of 1 wt% to 5 wt%.

The method for producing an antibacterial towel of the present invention includes a bleaching step, a neutralization step, a dyeing step, an acid treatment step, a soaping step, an antibacterial treatment step, a softening treatment step, and a drying step. It is assumed that the embodiment of the method for producing an antimicrobial towel of the present invention is 200 kg of towel.

In the bleaching step, a weight of 500 g was put in order to remove impurities adhering to the surface of the cotton yarn, and then a cleaning agent containing water so as to have a concentration of 0.5% in accordance with the weight of the cotton yarn was removed and oil remnants adhering to the surface of cotton yarn were removed A weight of 1 kg is added to the mixture, and a fine ring having a concentration of 1% is added. The water purification agent and the fixing agent are the same products that are currently sold by EZCAM.

In the bleaching step, sodium hydroxide (NaOH) to which a weight of 1.5 kg was added to a concentration of 1.5%, hydrogen peroxide (H 2 O 2) to which a weight of 8.8 kg was added so as to have a concentration of 8.8% and hydrogen peroxide %, And 1.5 kg of a volatile additive having a concentration of 1.5% to remove a large amount of wax and grass adsorbed on the surface of the cotton yarn while processing the cotton yarn. Stabilizers and compatibles are the same products currently sold at Daewon Chemical.

The bleaching step may be carried out at a temperature of 98 DEG C and allowed to stir for 40 minutes so that the cotton yarn and the solutions are evenly mixed.

In the acid water treatment and the neutralization step, glacial acetic acid (CH 3 COOH) having a concentration of 0.5% and a fruit water neutralizing agent currently sold by the corresponding E & C are added to the bleached cotton yarn in the bleaching step. The water-neutralizing agent is added to the weight of 220 g so that the concentration becomes 0.11%, and the rest corresponds to the water. At this time, the gaseous acetic acid or acetic acid may agitate the cotton yarn at a temperature of 60 DEG C for 10 minutes, and the fruit water neutralizing agent may agitate the cotton yarn and the fruit water neutralizing agent at a temperature of 40 DEG C for about 10 minutes.

The dyeing step is currently being marketed by IGEMCAM. To remove the impurities adhering to the surface of the cotton yarn, a weight of 500 g is added, and then water is added to the water so that the concentration is 0.5% A certain amount of dye having a predetermined concentration is introduced so that the color is stained on the cotton yarn. In order to uniformly dye the dye on the cotton yarn, sodium sulfate (Na2SO4) to which a weight of 60 kg is added so as to have a concentration of 60% and sodium carbonate (Na2Co3) to which a weight of 20 kg is added to have a concentration of 20% Sodium sulfate and sodium carbonate are mixed with water to have a certain concentration. At this time, the dyeing step stirs the cotton yarn and the solution at a temperature of 60 DEG C for 60 minutes.

In the acid treatment step, acetic acid (CH3COOH) having a concentration of 0.5% is added to the cotton yarn to which the dyeing has been completed by adding glacial acetic acid or a weight of 500 g. The acid treatment step is stirred with cotton yarn for 10 minutes at a temperature of 40 ° C.

The soaping step corresponds to a step for washing the cotton yarn having been subjected to the acid treatment. At this time, Daewon Chemical sells shopping products. The remaining dyestuffs that do not stick to the surface of the cotton yarn due to the injection of the shopping agent are removed. The weight of the shopping agent is 1 kg and the water is added so that the concentration of the shopping agent is 1%. The soaping step stirs the shopping liquid and the cotton yarn at a temperature of 95 DEG C for 20 minutes.

Thereafter, a hot-water step for mixing the water (water) and the cotton yarn having a temperature of 85 ° C for 10 minutes may be further performed to remove the shopping liquid from the cotton yarn. As a result, the dye can smoothly be adhered, the shopping agent can be removed from the cotton yarn, and the adsorption rate at which the antibacterial agent described later is adsorbed on the cotton yarn can be improved.

In the antibacterial treatment step, antimicrobial agents including silver colloid particles, titanium dioxide nanoparticles, dispersion stabilizer, and water are added to the cotton yarn, and the antibacterial agent is presently called G.sol by the company Gipheny (www.gpne.co.kr) It is being sold under the product name. The antibacterial agent contains 2 kg of water and has a concentration of 2%. The antibacterial agent and cotton yarn are preferably stirred at a temperature of 40 ° C for 10 minutes to maximize the adsorption rate between the antibacterial agent and cotton yarn.

The following effects were proved by the application of these antibacterial agents.

Experimental Example

Comparative Example Experimental Example Strain 1 Initial number of bacteria
After 18 hours
Bacteriostatic reduction rate 2.3 * 10 ⁴
2.0 * 10 ⁶
^- 2.3 * 10 ⁴
Less than 10
99.9 Strain 2 Initial number of bacteria
After 18 hours
Bacteriostatic reduction rate 2.3 * 10 ⁴
2.0 * 10 ⁶
- 2.2 * 10 ⁴
Less than 10
99.9

Strain 1 was Staphylococcus aureus ATCC 6538, and strain 2 was Klebsiella pneumoniae ATCC 4352. Washing conditions were laundered at KSK ISO 6330: 2011, 8B, (40 ± 3) ℃.

The softening step uses the softener currently sold by Taewoong on the cotton yarn to which the antibacterial treatment has been completed. 5 kg of softener is added, and the rest contains water so that the concentration is 2.5%. At this time, the temperature of the solution containing the softener and the water is 40 ° C., and the cotton yarn and the softener are mixed with each other for about 10 minutes.

In the drying step, the cotton yarn after the softening treatment is dewatered, and the cotton yarn is dried by natural drying or hot air or cold air, and then the cotton yarn dried is shipped to the product.

Referring to FIGS. 1 to 5, the towel according to the present invention for experimental example was obtained by culturing strain 1 or strain 2 after washing 100 times, and showed a reduction rate of 99.9% dml bacterium after about 18 hours. On the other hand, the comparative example uses a towel which is not antimicrobial treated, and the bacterium reduction rate is very small. Thus, it can be seen that the antibacterial performance of the towel according to the present invention is excellent.

Claims

delete

In a towel mainly composed of cotton,
A bleaching step of bleaching the cotton yarn by adding a foaming agent, a water purification agent, a kneading agent, a water stabilizer, caustic soda, hydrogen peroxide, and water and stirring at 98 ° C for 40 minutes;
A step of adding glacial acetic acid and a water neutralizing agent to the bleached cotton yarn by the bleaching step, stirring the mixture at a temperature of 60 ° C for 10 minutes, stirring the mixture at a temperature of 40 ° C for 10 minutes when the aqueous neutralizing agent is added, and neutralizing;
Dyeing step of adding a water purification agent, a dye, sodium carbonate, sodium sulfate and water to the neutralized cotton yarn;
An acid treatment step of adding glacial acetic acid and water to the dyed cotton yarn and stirring the yarn with a cotton yarn at a temperature of 40 DEG C for 10 minutes;
A soaping step of putting the shopping agent and the water into the acid-treated cotton yarn;
An antibacterial agent containing silver colloid particles, titanium dioxide nanoparticles, a dispersion stabilizer, and water is added to the cotton yarn having undergone the soaking step and stirred at a temperature of 40 ° C for 10 minutes so as to maximize the adsorption rate between the antibacterial agent and cotton yarn ;
Subjecting the antimicrobially-treated cotton yarn to a flexible treatment by injecting a flexible body and water; And a drying step of drying the softened cotton yarn,
Wherein the dyeing step further comprises adding a preparation containing acetic acid, sodium, tannic acid, sodium triphosphate, ammonium sulfate, sodium thiosulfate, a surfactant, formalin, copper sulfate, ammonia water and Naphthol AS.