KR100915991B1 - Preparation method of fabric type bactericidal agent using silver ion-containing ceramics - Google Patents

Abstract

The present invention relates to a method for producing a fibrous fungicide using a silver ion-containing ceramic, and more specifically, 1) mixing 180 to 220 parts by weight of a silver solution with respect to 100 parts by weight of zeolite powder; 2) treating the mixture at a temperature of 100 to 200 ° C. and a pressure of 1 to 2 kg / cm 2 for 1 to 10 hours; 3) recovering the silver ion-containing zeolite in a solid state by solid-liquid separation of the treated material of the second step and drying it to prepare a powder; 4) mixing 170 to 230 parts by weight of the acrylic binder based on 100 parts by weight of the silver ion-containing zeolite powder; 5) applying the mixture of the four steps to the fiber; And 6) relates to a method for producing a fibrous fungicide comprising the step of heat-treating the fiber at 150 to 300 ℃.

According to the production method of the present invention, by chemically bonding silver ions and zeolites, silver ions are constantly eluted through ion exchange reactions to exhibit sterilizing effect, and are prepared in a form in which acrylic binders are mixed and coated on fibers. As a result, the manufacturing is simple and the manufacturing time is shortened, and it is convenient and easy to handle because it can be cut to a certain size during use. Therefore, the fibrous disinfectant using the silver ion-containing ceramic prepared by the manufacturing method of the present invention is mounted on a water bath included in an air washer or the like to elute the silver ions uniformly during use, and thus exhibit a continuous sterilizing effect in the water tank.

Silver ion, zeolite, acrylic, binder, fiber, sterilization

Description

Preparation method of fabric type bactericidal agent using silver ion-containing ceramics}

The present invention relates to a method for producing a fibrous fungicide using a silver ion-containing ceramic, and more specifically, 1) mixing 180 to 220 parts by weight of a silver solution with respect to 100 parts by weight of zeolite powder; 2) treating the mixture at a temperature of 100 to 200 ° C. and a pressure of 1 to 2 kg / cm 2 for 1 to 10 hours; 3) recovering the silver ion-containing zeolite in a solid state by solid-liquid separation of the treated material of the second step and drying it to prepare a powder; 4) mixing 170 to 230 parts by weight of the acrylic binder based on 100 parts by weight of the silver ion-containing zeolite powder; 5) applying the mixture to the fibers; And 6) relates to a method for producing a fibrous fungicide comprising the step of heat-treating the fiber at 200 to 250 ℃.

Recently, as the antimicrobial and sterilization effect of silver nano is highlighted, silver nano ceramic balls using silver nano on ceramic balls are used in water purifiers and the like.

Silver nano ceramic balls are generally i) coating silver ions on ceramic balls, or ii) precipitating the ceramic in silver solution and leaving it for a certain time to uniformly disperse the silver solution on the surface and pores of the ceramic. It is made by molding into a sphere. When applied to the product, silver ions existing on the surface and pores are precipitated through chemical reduction method, which shows antibacterial effect. However, when it is used in a water tank, silver ions or silver nanoparticles are physically combined with ceramics, so they are separated by a certain physical force and are eluted in water. Therefore, the concentration of silver cannot be maintained constantly and it is difficult to realize sterilization / antibacterial effect. have. As an example of a water purifier, there is a problem in that the silver elution concentration is high when there is no flow of water, and the silver elution concentration is low when the water flow is fast. In addition, even though silver ions are eluted by some ion exchange reaction, the surface of the molded body is inactivated with cations such as Na ⁺ , Ca ⁺⁺ , Mg ^++, etc. There is this.

In the production of silver nano ceramic ball disinfectant according to the conventional firing method, the production cost is high due to the high temperature treatment, and a long reaction time is required, so it takes about 48 hours when producing 1 lot. In addition, the plastic working process was complicated and was not suitable for small quantity production.

Accordingly, the present inventors have studied to simply prepare the sterilization effect of silver ions in a form different from ceramic balls so that they can be applied to an air washer tank. The present invention has been completed by developing fungicides.

Therefore, the present invention is intended to provide a method for producing a fibrous fungicide using a silver ion-containing ceramic, which contains silver ions, has a sterilizing effect and is simple to manufacture and easy to handle.

The present invention provides a method for producing a fibrous fungicide using a silver ion-containing ceramic which contains silver ions having a bactericidal effect and is simple to manufacture and easy to handle.

More specifically, 1) mixing 180 to 220 parts by weight of the silver solution with respect to 100 parts by weight of the zeolite powder; 2) treating the mixture at a temperature of 100 to 200 ° C. and a pressure of 1 to 2 kg / cm 2 for 1 to 10 hours; 3) recovering the silver ion-containing zeolite in a solid state by solid-liquid separation of the treated material of the second step and drying it to prepare a powder; 4) mixing 170 to 230 parts by weight of the acrylic binder based on 100 parts by weight of the silver ion-containing zeolite powder; 5) applying the mixture of the four steps to the fiber; And 6) provides a method for producing a fibrous fungicide comprising the step of heat-treating the fiber at 150 to 300 ℃.

According to the production method of the present invention, by chemically bonding silver ions and zeolites, silver ions are constantly eluted through ion exchange reactions to exhibit sterilizing effect, and are prepared in a form in which acrylic binders are mixed and coated on fibers. As a result, the manufacturing is simple and the manufacturing time is shortened, and it is convenient and easy to handle because it can be cut to a certain size during use.

Therefore, the fibrous disinfectant prepared by the manufacturing method of the present invention is continuously mounted to the water bath included in the air washer and the like constantly elutes the silver ions when used to exhibit a continuous sterilization effect in the water tank.

Hereinafter, the present invention will be described in detail.

The zeolite of the first step is a mineral that is an aluminum silicate hydrate of alkali and alkaline earth metals, preferably a powder having a particle size of 1 to 10 μm, more preferably a powder having a size of 1 to 3 μm. It serves as a cation exchanger. In addition, the zeolite powder of the present invention is most preferably Na type. This is excellent in water purification function and adsorption of foreign substances, and it shows the effect of absorbing and removing heavy metals or bacteria contained in water.

In the present invention, the zeolite powder has a problem that the cost increases when the solid-liquid separation is used when the powder having a particle size of 1 μm or less is used. There is a disadvantage, there is a disadvantage that the mixing is not well made when mixing with the binder in the present invention applies the above numerical value.

In addition, the silver solution of the first step is a solution containing silver ions at a concentration of 1 to 10% (10,000 to 100,000 mg / liter as Ag +), preferably using 1% or more, and preparing silver ions in the art. Depending on the method, it can be manufactured and used directly or purchased and sold on the market. If the silver ion concentration is lower than 1%, the silver loading of the silver ion-containing zeolite is low, and the sterilizing power is low. If the silver ion concentration is higher than 10%, the cost is high and uneconomical. It is preferable to mix 180-220 weight part of silver solutions with respect to 100 weight part of said zeolite powders, and to mix 200 weight part of silver solutions especially.

The second step is a step for chemically bonding the zeolite and silver ions, the mixture of the first step is treated for 1 to 10 hours under conditions of temperature 100 ~ 200 ℃, pressure 1 ~ 2 kg / ㎠.

In the third step, the mixture which has been treated in the second step is solid-liquid separated to recover the silver ion-containing zeolite in the solid state, and then dried and powdered.

Solid-liquid separation uses a method such as centrifugation or filtration common in the art, and recovers solid silver ion-containing zeolite after solid and liquid separation, which is dried in a drier and powdered.

The fourth step is to mix 170 to 230 parts by weight of the acrylic binder with respect to 100 parts by weight of the silver ion-containing zeolite powder, preferably 180 to 220 parts by weight, more preferably 195 to 205 parts by weight.

The acrylic binder may be used without particular limitation as long as it is commonly used as a non-toxic aqueous emulsion type, and the amount of use may also vary depending on the desired viscosity, optimizing bonding with silver ions-containing zeolite and attachment to fibers in the following steps. In order to mix the acrylic binder with 170 to 230 parts by weight based on 100 parts by weight of silver ion-containing zeolite powder to have a mixed viscosity of 5,000 to 10,000 cps. When the acrylic binder is less than 170 parts by weight, the adhesion to the fiber is low and not durable. If the acrylic binder is more than 230 parts by weight, the adhesion to the fiber is good, and the durability is high, but the relative content of the silver ion-containing zeolite decreases, so that the sterilization effect is insufficient. .

At this time, the content or viscosity of the solid content (silver ion-containing zeolite powder) may be adjusted by adding water to the mixture.

The fifth step is to apply the mixture of the four steps to the fiber,

The fibers include woven or knitted fabrics, and in particular may be any one selected from nylon, urethane and rayon. In particular, the fiber is suitable for the mesh (mesh) form, the size of the mesh is suitable 5 ~ 30 mesh.

The application of the mixture is in an amount of 0.05 to 0.5 g / cm ² on the fiber fabric. When applied below 0.05g / cm ² , silver ion content is lowered, so it is difficult to get enough sterilization effect. When applied over 0.5g / cm ² , it is difficult to uniformly harden the whole in the following heat treatment. It is not preferable because it may occur, and the sterilization life does not increase significantly compared to increasing the application amount. If too much coating is made, the coated silver ion-containing zeolite is not used in the sterilization reaction, so the effect against the manufacturing cost is not economical.

In addition, it is preferable to apply on both sides of the fiber because it can increase the surface area, and the application of the mixture on both sides of the fiber can be performed by a conventional method such as application using a roller.

In the sixth step, the five-step fiber is heat-treated at 150 to 300 ° C., preferably at 200 to 250 ° C., and the mixture of silver ion-containing zeolite and binder applied to the fiber is heat-cured to completely fix the fiber. The heat treatment is performed within a range of about 20 seconds to 1 minute depending on the condition of the fiber, but if it exceeds 1 minute, the fiber color may change or damage to the fiber shape is not preferable. Most preferably, the heat treatment is performed for about 20 to 40 seconds at about 225 ~ 235 ℃.

The fiber produced through the above 6 steps contains silver ions, which not only exhibits a sterilizing effect, but also chemically combines silver ions and zeolites to continuously dissolve the silver ions through ion exchange reactions.

The produced sterilized fiber is silver-zeolite (Ag-zeolite) attached to the fiber surface is mounted in the water washer of the air washer and water is supplied, the Na + ions and Ag + ions in the water through the ion exchange reaction through the zeolite Na + And the Ag + ions are released into the water. Ag + separated from the zeolite reacts with microorganisms in water. The electrical characteristics of the outer surface of microorganisms are negatively charged. Since Ag + ions are positive ions, when Ag + ions are adsorbed on microorganisms, they are pulled at the sites where Ag + adheres, destroying the cell walls of microorganisms and eventually killing microorganisms. Effect.

Such a method for producing a fibrous fungicide of the present invention is obtained by mixing silver ions-containing ceramics with acrylic binders and applying them to fibers to prepare them as sterilizers, which makes the production simple and shortens the production time. It is convenient and easy to handle.

Furthermore, the present invention provides a fibrous disinfectant for air washers manufactured by the above production method for sterilization of the tank of the air washer.

As a fungicide in the form of a fiber that exhibits a bactericidal effect, it can be used to cut or fold to a certain size during use, which is convenient and easy to handle.

Therefore, by cutting or folding to fit the size of the cartridge case of the air washer to be used in the tank can be obtained in the tank sterilization effect.

Hereinafter, preferred examples are provided to aid in understanding the present invention. However, the following examples are merely provided to more easily understand the present invention, and the contents of the present invention are not limited by the examples.

Example 1 Preparation of Fungicide of the Present Invention 1

1) Preparation of Silver-containing Zeolite

After mixing 2 Kg of silver solution (silver content 2%) and 1 Kg of zeolite powder (particle size 3 micrometers), it was made to stand on the temperature of 150 degreeC, and the pressure of 1.5 kg / cm <2> for 3 hours.

Thereafter, the solution and the zeolite were subjected to solid and liquid separation to recover 1.1 Kg of zeolite containing silver ions, and the silver ion content of the silver ion containing zeolite was about 2.5%. The recovered zeolite is somewhat solid, but is easily converted into a powder and dried at room temperature.

2) Silver ions  Containing zeolite Fibrous  Fungicide manufacturers

6 g of the silver ion-containing zeolite and 12 g of an acrylic binder (GS binder, original window) were uniformly mixed (viscosity: 8000 cps).

The mixture was uniformly applied to the nylon fabric (mesh: about 20 mesh) as a woven fabric in an amount of 0.1 g / cm ² . This was heat-treated at 230 ℃ for 30 seconds to prepare a fibrous fungicide of the present invention.

The fibrous fungicide prepared above is cut to a predetermined size, folded into a suitable size and inserted into a cartridge of an air washer tank to be used as a fungicide.

[ Example  2-6] Preparation of Fungicide of the Present Invention 2-6

A fibrous fungicide was prepared as in Example 1, but the silver ion-containing zeolite, the binder, and the coating amount were prepared as shown in Table 1 below.

Example Silver ion-containing zeolites (g) Binder (g) Coating amount (g / cm ² ) One 5 10 0.1 2 5 9 0.1 3 5 11 0.1 4 5 10 0.08 5 5 10 0.2 6 5 10 0.4

[ Comparative example  1-6] Fibrous  Disinfectant Manufacturing 1-6

A fibrous fungicide was prepared as in Example 1, but the silver ion-containing zeolite, binder, and coating amount were prepared as shown in Table 2 below.

Silver ion-containing zeolites (g) Binder (g) Coating amount (g / cm ² ) Comparative Example 1 10 10 0.1 Comparative Example 2 0.5 10 0.1 Comparative Example 3 5 8 0.1 Comparative Example 4 5 12 0.1 Comparative Example 5 5 10 0.04 Comparative Example 6 5 10 0.6

Test Example Confirmation of Sterilization Effect

In the test of the specimens prepared in the above example, the sterilization power (KS M 0146 shake flask method) was continuously evaluated to observe how the sterilization power was changed to determine the performance of each specimen.

Example 1 time 5 times 20 times 40 times 60 times 100 times Example 1 99.999 99.998 99.999 99.995 99.993 99.91 Example 2 99.999 99.999 99.999 99.995 99.99 99.98 Example 3 99.999 99.998 99.995 99.99 99.95 99.9 Example 4 99.999 99.998 99.99 99.97 99.92 99.9 Example 5 99.999 99.999 99.999 99.995 99.99 99.98 Example 6 99.999 99.999 99.999 99.997 99.99 99.98 Comparative Example 1 99.9999 99.9992 99.999 99.5 99 - Comparative Example 2 99.8 99.5 99.1 99 95 90 Comparative Example 3 99.999 99.998 99.92 99 95 - Comparative Example 4 99.96 99.94 99.93 99.5 96 - Comparative Example 5 99.999 99.98 99.6 95 - - Comparative Example 6 99.999 99.999 99.999 99.999 99.992 99.98

Example 1 showed the most ideal result as a result of the present invention, and Examples 2-6 also showed a similar level of desirable bactericidal effect.

Comparative Example 1 and 2 with respect to Example 1 as a result of changing the content of the silver ion-containing zeolite (Ag-zeolite), the performance increases as the content is increased in Comparative Example 1, but the binding strength of the binder and silver ion-containing zeolite is weak In the continuous experiment, the binder-zeolite binder applied on the fiber was lost, and after 40 times, the sterilization power was decreased rapidly. In the case of Comparative Example 2, the sterilization power was generally decreased, and particularly, after 20 times, the sterilization power was rapidly decreased.

As a result of changing the binder content of Comparative Examples 3 and 4 with respect to Example 1, Comparative Example 3 had a higher zeolite content compared with Example 1, resulting in a weak binder-zeolite binding force, which caused the disinfection to be easily lost in the fibers. Comparative Example 4 was found to have a high binder content does not exhibit the bactericidal power of the zeolite.

Comparative Example 5 and 6 with respect to Example 1 are the results of changing the application amount.

Comparative Example 5, which is a case where the coating amount is lower than that of Example 1, showed a good initial performance but shortened lifespan, and Comparative Example 6 showed that the lifespan did not increase significantly when the coating amount was increased six times. . If too many applications were made, it was determined that the silver ion-containing zeolites applied were not used for the sterilization reaction.

Claims (7)

1) mixing 180 to 220 parts by weight of the silver solution with respect to 100 parts by weight of the zeolite powder; 2) treating the mixture at a temperature of 100 to 200 ° C. and a pressure of 1 to 2 kg / cm 2 for 1 to 10 hours; 3) recovering the silver ion-containing zeolite in a solid state by solid-liquid separation of the treated material of the second step and drying it to prepare a powder; 4) mixing 170 to 230 parts by weight of the acrylic binder based on 100 parts by weight of the silver ion-containing zeolite powder; 5) applying the mixture of the four steps to the fiber; And 6) heat-treating the fibers at 150 to 300 ° C. A method for producing a fibrous fungicide using a silver ion-containing ceramic. The method according to claim 1, wherein 180 to 220 parts by weight of the acrylic binder is mixed with 100 parts by weight of the silver ion-containing zeolite powder of the fourth step. The method of claim 1, wherein the fiber of step 5 is selected from nylon, urethane, and rayon and has a mesh form. The method according to claim 1, wherein the coating amount of the five steps is 0.05 to 0.5 g / cm ² . The method of claim 1, wherein the heat treatment of step 6 is performed for 20 seconds to 1 minute Method for producing a fibrous fungicide using a silver ion-containing ceramic, characterized in that. The method for producing a fibrous fungicide using a silver ion-containing ceramic, according to claim 1, wherein the fibrous fungicide is for an air washer. A sterilizing agent for an air washer prepared by the method of any one of claims 1 to 6.