KR20060130864A - Antibiosis towel and how to use - Google Patents

Abstract

An anti-microbial towel containing titanium dioxide photocatalyst and nano-silver is provided to have anti-microbial and sterilization effects, thereby efficiently relieve or cure skin diseases such as atopic dermatitis, acne, etc. by impregnating the towel in a composition containing titanium dioxide photocatalyst, nano-silver, binder, metal ions and water. The composition comprises 1.5 to 1.7wt.% of titanium dioxide photocatalyst, 30 to 70ppm of nano-silver, 8 to 12wt.% of binder, 0.3 to 0.7wt.% of metal ions and the balance of water. The anti-microbial towel is formed by impregnating a towel in the composition for 10 to 20 minutes, and dehydrating and drying the impregnated towel at 30 to 40deg.C. After immersing the prepared towel in water at 40 to 50deg.C, the wet towel is placed on the skin to remove bacteria of the skin. The binder is organic binder selected from acryl and urethane, or inorganic binder selected from silica based material.

Description

Antibacterial towel and its usage {ANTIBIOSIS TOWEL AND HOW TO USE}

The present invention relates to an antimicrobial towel and a method of using the same, and more particularly, the antimicrobial towel suitable for use in alleviating and treating skin diseases by being impregnated in a photocatalyst composition including titanium dioxide photocatalyst and nanosilver is used. It is about a method.

Nowadays, the focus of attention on products that come into contact with the skin such as disposable diapers and tissues is focused on antimicrobial or sterilizing ability.

For example, Korean Patent Publication No. 2004-88008 discloses a disposable diaper containing nano silver, wherein the nano silver is described as being added for the purpose of preventing bacterial growth and inflammation in the disposable diaper. Specifically, the nanosilver solution or powder is prepared by mixing the disposable diaper material.

As another example, Korean Utility Model Registration No. 360135 has an antimicrobial containing titanium dioxide photocatalyst, which may exhibit antibacterial and deodorizing effects when ultraviolet rays emitted from ordinary sunlight or fluorescent lamps are irradiated, and silver component, which shows a safe and strong sterilizing effect on the human body. A sanitary article coated with a deodorizing solution is disclosed. Specifically, titanium tetrachloride is added dropwise to distilled or ion-exchanged water contained in a container, silver nitrate is added thereto, and ammonia water is added to the pH of the mixed solution. To produce a hydroxide mixed with silver hydroxide and titanium hydroxide, and then dried, powdered, and then heat-treated to crystallize. Spray nano-antibacterial deodorant obtained from titanium The method of depositing produces antibacterial and deodorant hygiene products. The antimicrobial deodorant hygiene products include sheets, pillows, duvets, bed covers, and the like.

However, the products containing antibacterial and antiseptic functions known to date are for the purpose of antimicrobial or antiseptic function of the product itself, and are not applied to the skin to alleviate or treat skin diseases.

Thus, the inventors of the present invention while utilizing the antimicrobial and bactericidal function of the nano silver or titanium dioxide photocatalyst while looking for a method that can be applied to the skin, forming a photocatalyst liquid containing titanium dioxide photocatalyst, nano silver and immersing the towel therein After dehydration and drying to prepare an antibacterial towel, it was immersed in hot water and placed on the skin, and found to be effective in sterilization and antibacterial of bacteria involved in diseases in the skin, thereby completing the present invention.

Therefore, it is an object of the present invention to provide an antibacterial towel that can exert an antibacterial and antiseptic function when applied to the skin.

Another object of the present invention to provide a method of using the same to maximize the antibacterial and antiseptic function of such antibacterial towel.

Antibacterial towel of the present invention for achieving the above object is a photocatalyst liquid consisting of titanium dioxide photocatalyst 1.5 to 1.7% by weight, nano silver 30 to 70ppm, binder 8 to 12% by weight, metal ions 0.3 to 0.7% by weight and the balance of water It is characterized in that it is obtained by impregnating a towel with the composition, and dehydrating and drying.

Such an antibacterial towel may be used as a method of removing bacteria from the skin by dipping in water at 40 ° C. to 50 ° C., taking it out, and applying it to the skin.

The present invention will be described in more detail as follows.

The antimicrobial towel of the present invention is obtained through a method of impregnating a towel in a photocatalyst liquid (Deep coating), wherein the photocatalyst liquid is a composition containing titanium dioxide photocatalyst, nanosilver, binder, metal ion and distilled water.

Specifically, the photocatalyst liquid composition will be described.

(1) titanium dioxide photocatalyst

A catalyst is a substance that promotes or delays a chemical reaction of another substance without changing itself. A photocatalyst is a substance that causes a catalytic reaction upon receiving light. Among photocatalysts, titanium dioxide (TiO ₂ ) is most frequently used. This is because titanium dioxide has good acid resistance and alkali resistance and is harmless to the human body. Hydroxy radical Referring to the oxidative degradation reaction pathway of photocatalytic titanium dioxide, titanium dioxide photocatalyst receives a UV (400nm) as an n-type semiconductor with electron (Electron), studied for (Electron Hole) is formed strong oxidizing power (OH ^-) To produce superoxide. The hydroxy radicals and super oxides oxidize and decompose the organic compounds into water and carbon dioxide. In this way, air pollutants are oxidatively decomposed into harmless water and carbon dioxide, and organic compounds, which are pollutants in water, are decomposed into water and carbon dioxide. In addition, because bacteria are organic compounds, they are oxidatively decomposed and sterilized by the strong oxidation of the photocatalyst. Photocatalyst titanium dioxide becomes a substance having a hydrophilic function upon receiving light. When the oxo compound on the surface of the titanium dioxide photocatalyst receives light, it reacts with moisture in the air to become hydroxy radicals, making it hydrophilic.

Known uses of photocatalysts to date include environmental purification such as SOx, dioxin treatment, waste purification, wastewater treatment, waste gas purification, groundwater purification; Road applications such as tunnel inner walls, road guard fences, reflectors, road signs, sound barriers, and the like; Residential facilities such as toilets, tiles, bathtubs, wallpaper, glass, window chassis, blinds and lighting covers; Construction materials such as inner and outer wall materials; Household appliances such as air purifiers, air conditioners, refrigerators, water purifiers and dish dryers; Automotive applications such as automotive air conditioners, glazing, light covers, automotive interior materials; Agricultural sectors such as green houses, soil fungicides, insecticides; Daily necessities such as tableware, knives, ladles, cutlery, cutting boards, glassware; Store equipment such as outdoor signage, indoor walls, and lamps; It is widely used for medical treatment such as cancer treatment.

By using the strong oxidation reaction of the photocatalyst, sterilization, antibacterial, deodorization, organic matter decomposition, etc., and the superhydrophilicity self-cleaning (self cleaning), anti-fog.

In the present invention, the photocatalyst is included in the composition of the photocatalyst in consideration of sterilization and antibacterial action of the photocatalyst, and the content of the photocatalyst in the composition of the photocatalyst is preferably 1.5 to 1.7% by weight. If the content of the photocatalyst titanium dioxide is less than 1.5% by weight, the effect on the photocatalyst may be reduced, and when the content of the photocatalyst is more than 1.7% by weight, there may be a problem in that the appearance or the original target material may be changed.

(2) Nano silver

The solid silver we see in our daily lives is either silver white or light gray in colour. However, below 20nm, the color becomes golden. In the nano state, the property changes.

Nanosilver is a compound word of Nano-technology and silver, and has strong antibacterial and sterilization mechanism. Looking more specifically at the properties of nanosilver, nano-silver has a strong bactericidal power. According to the research report, it is able to sterilize 650 kinds of bacteria and viruses. In addition, nanosilver is a useful therapeutic agent for various inflammations, and has a very strong therapeutic effect on burns, gastroenteritis, and oral inflammation. However, it is not yet approved as a therapeutic agent. In addition, the nano silver is harmless to the human body, while having a sterilizing power tens of times stronger than the chlorine series, but is also harmless to the human body. In general, pure nano silver does not have any abnormalities in the human body even if humans eat it. Nanosilver can be mass-produced and has a wide range of applications. Nanosilver has the best price / performance ratio compared to other fungicides.

In the present invention, the nano-silver having such strong antimicrobial and bactericidal power is included so as to 30 to 70ppm in the composition of the photocatalyst solution, if the content is less than 30ppm in the total composition of the photocatalyst solution, durability and effects are reduced, and if silver exceeds 70ppm, There may be a problem of discoloration.

(3) binder

In order to apply the photocatalyst such as titanium dioxide or nanosilver to the towel, a binder for fixing them is required, and an organic binder or an inorganic binder may be used as the binder.

Specifically, examples of the organic binder include acryl, urethane, and the like, and examples of the inorganic binder include silica and the like. Preferably, an organic-inorganic composite binder in which an organic binder and an inorganic binder are mixed is used.

The content of the binder is 8 to 12% by weight of the total photocatalyst liquid composition, if the content is less than 8% by weight there is a problem of adhesion, if more than 12% by weight may have a problem of tactile or reverse reaction.

(3) metal ions

Metal ions in the photocatalyst liquid composition are added for the antibacterial adsorption deodorization, wherein the metal includes zinc or copper. More specifically, it is preferable to mix zinc and copper in a 1: 1 weight ratio, and the content of metal ions is preferably 0.3 to 0.7% by weight of the total photocatalyst liquid composition. If the amount of metal ions added is less than 0.3% by weight of the total photocatalyst liquid, the function may be deteriorated, and if the amount of metal ions exceeds 0.7% by weight, there may be a problem in the reaction between the components.

(4) distilled water

The titanium dioxide photocatalyst, nanosilver, binder and metal ions as described above are mixed in distilled water.

The method of manufacturing antibacterial towel from the photocatalyst liquid which has such a composition is an impregnation method. Antibacterial towels are prepared by a so-called deep coating method in which the towels are soaked in the photocatalyst for 10 to 20 minutes. After the impregnation is completed, dehydration and dried at 30 to 40 ℃ to obtain the antimicrobial towel of the present invention.

The method of using the antimicrobial towel thus obtained is first soaked in a hot water of about 40 to 50 ℃ and then taken out and placed on the skin to actively activate the bacteria in the skin, and then the photocatalyst contained in the antibacterial towel and It is used as a method to remove bacteria from the skin through the antibacterial and bactericidal action of nanosilver. In general, all the bacteria grow vigorously in a hot and humid environment. Based on this, when the antibacterial towel is soaked in hot water, taken out and placed on the skin, the bacteria in the skin grow vigorously and become active. Is to remove through the antibacterial and bactericidal action of the photocatalyst or nanosilver contained in the antibacterial towel.

Therefore, the antimicrobial towel of the present invention can alleviate skin diseases caused by the action of bacteria such as atopy or acne, and ultimately can also be treated.

The principle of eliminating atopy or itching is that when titanium dioxide is combined with water and subjected to ultraviolet rays, OH radicals are generated to show strong bactericidal action.

The function of the antimicrobial towel lasts for a long time even when the towel is washed, because it is a stable combination of the components of the binder and each functional raw material.

The bactericidal and antimicrobial activity of the antimicrobial towel of the present invention was confirmed to last 30 times based on washing machine washing. (With test report)

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by the Examples.

The antimicrobial towel used in the following examples is obtained by the following method.

1.5 to 1.7% of titanium dioxide (content) of 5 to 10 nm, 30 to 70 ppm of nano silver of less than 5 mm of silver metal type, 8-12% of organic-inorganic composite binder consisting of acryl and urethane and silica, zinc and copper ions are 1 0.3-0.7% of mixed metal ions in a weight ratio of 1: 1 were mixed with distilled water to form a photocatalyst liquid having a total content of 20L.

The photocatalyst liquid thus formed was impregnated with a towel of 40 × 80 mm in width × length and immersed for 10 minutes.

Then, the immersed towel was taken out, dehydrated in a washing machine at 1200 rpm, and dried at 30-40 ° C. to obtain an antibacterial towel.

Example 1

This example is to test the antimicrobial properties of the antimicrobial towels obtained according to the present invention, the antimicrobial towels were tested by the KICM-FIR-1002 method by the Korea Institute of Construction Materials. The test strains were Stapylococcus aureus , E. coli and Pseudomonas aeruginosa which are located on the skin and cause dermatitis.

The antimicrobial test by Escherichia coli was carried out as described above for the antibacterial towel obtained as described above, and the results are shown in Table 1 below.

In addition, the antibacterial test results for Staphylococcus aureaus and Pseudomonas aeruginosa are shown in Tables 2 and 3 below.

 Test Items  Test result    Test Methods  Initial concentration (CFU / 40p)  Concentration after 24 hours (CFU / 40p)   Bacterial Reduction (%) E.coli ATCC 25922  Blank  438  2714  -    KICM-FIR-1002  Antibacterial towel  438  One  99.8

 Test Items  Test result    Test Methods  Initial concentration (CFU / 40p)  Concentration after 24 hours (CFU / 40p)   Bacterial Reduction (%) Staphylococcus aureus ATCC 6538  Blank  440  1056  -    KICM-FIR-1002  Antibacterial towel  440  One  99.8

 Test Items  Test result    Test Methods  Initial concentration (CFU / 40p)  Concentration after 24 hours (CFU / 40p)   Bacterial Reduction (%) Pseudomonas aeruginosa ATCC 15442  Blank  418  2726  -    KICM-FIR-1002  Antibacterial towel  418  One  99.8

From the results of Tables 1 to 3, it can be seen that the antimicrobial towel according to the present invention exhibits excellent antimicrobial activity against bacteria that are present on the skin and cause factors of skin diseases.

Example 2

This example is to show that the antimicrobial and sterilization ability is different depending on the method using the obtained antimicrobial towel, the test strain was used Staphylococcus aureus ATCC 6538, the first example is the antimicrobial towel 40-50 ℃ before testing After dipping in hot water, the test was carried out. The second example was tested with an antibacterial towel as it was.

The results showed that the bactericidal rate increased in a short time when the antimicrobial towel was immersed in hot water. The results are shown in Table 4 below.

   Test Items  Test result    Test Methods  Initial concentration (CFU / 40p)  Concentration after 12 hours (CFU / 40p)  Concentration after 24 hours (CFU / 40p) Staphylococcus aureus ATCC 6538  Blank  440  750  1056     KICM-FIR-1002    Antibacterial towel  No treatment  440  180  70  Immersed in hot water   440   80   One

Example 3

This example is to show that the antimicrobial and sterilization ability of the antimicrobial towels lasts even in harsh conditions such as washing, and the specific evaluation method is as follows.

That is, KS K0432-1999, the normal cycle, washing temperature 40 ± 3 ℃ and the string drying was repeatedly washed 30 times under washing conditions, and then the same antibacterial test as in Example 2.

As a result of the evaluation, it was found that the antibacterial and bactericidal power of the antibacterial towel obtained by the method of impregnating the photocatalyst liquid composition is maintained for a long time even in harsh conditions such as washing, dehydration and drying.

As described in detail above, the towel obtained through the method of impregnating the photocatalyst liquid composition comprising titanium dioxide photocatalyst, nanosilver, binder, metal ion and distilled water according to the present invention is a bacterium that causes disease in the skin by contacting the skin. It shows the antibacterial and bactericidal action, and especially if the towel is immersed in hot water before use, the antibacterial and bactericidal action becomes more active. Thus, the towel of the present invention is a simple method for skin diseases such as atopy or acne. The antimicrobial towel to antimicrobial principle according to the present invention is not limited to the towel, and can be widely applied to all fibers.

Claims (6)

After impregnating a towel in the photocatalyst liquid composition consisting of 1.5 to 1.7 wt% of titanium dioxide photocatalyst, 30 to 70 ppm of nanosilver, 8 to 12 wt% of binder, 0.3 to 0.7 wt% of metal ions, and the remaining amount of water, dehydration and drying were performed. Obtained antibacterial towel. According to claim 1, wherein the binder is an antibacterial towel, characterized in that the binder comprises an organic binder selected from acrylic, urethane, silica-based inorganic binder. The antibacterial towel according to claim 1, wherein the metal ion is zinc or copper ion. The antimicrobial towel according to claim 1, wherein the impregnation is performed for 10 to 20 minutes. The antibacterial towel according to claim 1, wherein the drying is performed at 30 to 40 ° C. The antimicrobial towel of claim 1 is immersed in water of 40 to 50 ℃, it is taken out and applied to the skin to use the method to remove the bacteria in the skin.