KR20100136233A - Manufacturing method of antibacteria panel - Google Patents

Abstract

PURPOSE: A method of manufacturing an anti-bacterial panel is intended to use for a bacteria-sensitive place, such as the wall of a food factory, a hospital, a semiconductor factory or a laboratory. CONSTITUTION: A method of manufacturing an anti-bacterial panel comprises following steps. Anti-bacterial paint is coated on the surface of the panel and the panel is dried. The anti-bacterial paint is manufactured as follows. Designated thinner of 10~20weight and silver zeolite of 0.5~1weight are mixed with acryl resin solid of 100weight.

Description

Manufacturing method of antibacterial panel

The present invention relates to a method for producing an antibacterial panel. More specifically, in the production of a panel, 10 to 20 parts by weight of designated thinner and 0.5 to 1 part by weight of silver zeolite with respect to 100 parts by weight of acrylic resin solid content on the surface of the panel. It relates to a method for producing an antimicrobial panel comprising the step of coating and drying the mixed antimicrobial paint.

Bacteria and fungi are widely distributed in various ways, ranging from dietary, residential, and clothing industrial products, and they can grow and grow at any time in the soil, air, water, and seawater, if growth conditions are met. While microorganisms such as bacteria and mold wax are beneficial to humans, most microorganisms grow in food, dwellings, and clothing, but are not beneficial to humans such as food decay, unpleasant smell and poor appearance, dull color and shape of clothes. Will cause damage. In order to remove such microorganisms, factors that affect the growth of microorganisms such as temperature and humidity may be adjusted, or antimicrobial agents and antimicrobial agents may be applied where microorganisms are easy to grow.

Various kinds of antimicrobial agents have been studied, and recently, silver zeolite and silver nano are used as an antimicrobial agent, and a photocatalyst may be included in the antimicrobial agent for the activity of the antimicrobial agent.

Silver zeolite stably binds antimicrobial silver ions in zeolite, which is an exchanger of metal ions, and exhibits antimicrobial properties by altering silver ions with cellular proteins in microorganisms to inhibit the function of microbial cell proteins. This silver zeolane is a very stable material for the human body.

Recently, in-hospital infections caused by various resistant bacteria (MRSA, VRSE, VRE), bedsores caused by antibiotic-resistant Pseudomonas aeruginosa infection, food poisoning by pathogenic Escherichia coli O-157, vibrio, Salmonella, canpyrobacta and Staphylococcus aureus, Pneumonia caused by Legionella, which grows in the cooling water in the cooling towers on the building roof, pediatric asthma caused by mold spores in houses, accidents caused by microbial contamination in the manufacturing line of medicines and foods, industrial products, residential wood, There are many problems caused by harmful microorganisms such as degradation caused by microbial contamination such as cosmetics. Besides, fiber, plastic, paper, wood, metal, glass, etc. are also seriously damaged by microorganisms.

Accordingly, the present invention is to provide a method for producing an antimicrobial panel that can suppress the generation, growth, and the like of microorganisms that adversely affect the human body by the antimicrobial treatment for the panels used in residential or factories.

An object of the present invention is to provide a method for producing an antimicrobial panel and to provide an antimicrobial panel produced by such a method.

According to the present invention, a panel may be prepared by coating and drying an antimicrobial paint mixed with 10-20 parts by weight of a designated thinner and 0.5-1 part by weight of a silver zeolite based on 100 parts by weight of an acrylic resin solid content on the surface of the panel. Panels can be prepared.

The present invention can provide an antimicrobial panel excellent in antimicrobial properties.

According to the present invention, the antimicrobial panel excellent in antimicrobial properties can be used in places sensitive to bacteria, for example, walls of food factories, walls of hospitals, walls of semiconductor factories, or walls of laboratories.

The present invention shows a method for producing an antimicrobial panel.

The present invention shows a method for producing an antimicrobial panel, which comprises the steps of coating and drying an antimicrobial paint on the surface of the panel.

In the above-mentioned antibacterial paint, 10-100 weight part of designated thinners and 0.5-1 weight part of silver zeolites can be used with respect to 100 weight part of acrylic resin solid content.

In the silver zeolite (silver zeolite) can be used to stably combine the silver ions having antimicrobial in the zeolite (zeolite) which is an exchanger of metal ions. Such silver zeolites may be ones currently available on the market or manufactured by conventionally known methods. Since the preparation method of the silver zeolite can be appropriately performed by those skilled in the art, the method of preparing the silver zeolite in the present invention is not essential, and thus the detailed description thereof will be omitted. Shall be.

The coating of the antimicrobial paint on the surface of the panel may be coated with an antimicrobial paint to a thickness of less than 40㎛ and dried for a predetermined temperature and time. Drying at 50-200 ° C. for 5-40 minutes.

The coating and drying of the antimicrobial paint on the surface of the panel is coated with an antimicrobial paint to a thickness of 18 to 40㎛ and can be dried for 8 to 35 minutes at 50 ~ 195 ℃.

The coating and drying of the antimicrobial paint on the surface of the panel may be coated with an antimicrobial paint to a thickness of 18 ~ 23㎛ and dried for 8 to 12 minutes at 50 ~ 100 ℃.

The coating and drying of the antimicrobial paint on the surface of the panel may be coated with an antimicrobial paint at a thickness of 24 to 26 μm and dried at 100 to 170 ° C. for 15 to 25 minutes.

The coating and drying of the antimicrobial paint on the surface of the panel may be coated with an antimicrobial paint with a thickness of 35 to 40 μm and dried at 185 to 195 ° C. for 25 to 35 minutes.

Coating of the antimicrobial paint on the surface of the panel in the above may be carried out using a spray (spray) or using a coating machine (coating machine). As described above, the coating method for coating the surface of the panel with an antimicrobial paint is sufficient if a person skilled in the art uses the conventional coating method, and thus the details of the coating method will be omitted.

The antimicrobial paint, which is mixed with 10 to 20 parts by weight of the designated thinner and 0.5 to 1 part by weight of silver zeolite, may be mixed under ultrasonic wave treatment so that the components of the paint are well dispersed. Can be.

As an example of mixing the antimicrobial paint under the ultrasonic treatment, 10 to 20 parts by weight of the designated thinner and 0.5 to 1 part by weight of silver zeolite may be mixed for 30 minutes or more under 20 kHz or more with respect to 100 parts by weight of the acrylic resin solid content.

As an example of mixing the antimicrobial paint under the ultrasonic treatment, 10 to 20 parts by weight of designated thinner and 0.5 to 1 parts by weight of silver zeolite may be mixed for 30 minutes to 2 hours under 20 kHz to 100 kHz sonication with respect to 100 parts by weight of the acrylic resin solid content. .

As an example of mixing the antimicrobial paint under the ultrasonic treatment, 10 to 20 parts by weight of designated thinner and 0.5 to 1 part by weight of silver zeolite may be mixed for 30 minutes to 90 hours under ultrasonic treatment at 30 kHz to 90 kHz based on 100 parts by weight of the acrylic resin solid content. .

As an example of mixing the antimicrobial paint under the ultrasonic treatment, 10 to 20 parts by weight of the designated thinner and 0.5 to 1 parts by weight of silver zeolite may be mixed for 1 hour to 1.3 hours under 50 kHz to 70 kHz sonication with respect to 100 parts by weight of the acrylic resin solid content. .

As an example of mixing the antimicrobial paint under the ultrasonic treatment, 10 to 20 parts by weight of the designated thinner and 0.5 to 1 parts by weight of silver zeolite may be mixed for 60 hours under 60 kHz sonication with respect to 100 parts by weight of the acrylic resin solid content.

The antimicrobial panel of the present invention may further comprise a plasma treatment after the step of coating and drying the antimicrobial paint on the surface of the panel mentioned above. The plasma treatment may be performed to improve the antimicrobial activity of the antimicrobial paint coated on the surface of the antimicrobial panel and also to prevent wear and / or corrosion of the antimicrobial panel.

The plasma treatment can be performed under conditions of an AC voltage of 50 to 150 W, a pressure of 0.5 to 50 torr, a hydrogen amount of 10 to 30 sccm, and a time of 5 to 20 minutes.

The plasma treatment can be performed under the conditions of an AC voltage of 80 to 120 W, a pressure of 5 to 30 torr, a hydrogen amount of 15 to 25 sccm, and a time of 10 to 15 minutes.

The method for producing the antimicrobial panel of the present invention has been investigated under various conditions. In order to achieve the object of the present invention, it is preferable to provide a method for producing the antimicrobial panel under the above-mentioned conditions.

The present invention includes an antimicrobial panel prepared by the above-mentioned method.

The present invention can be used for the antimicrobial panel manufactured by the above-mentioned method, the wall of a food factory, the wall of a hospital, the wall of a semiconductor factory, or the wall of a laboratory.

Hereinafter, the present invention will be described in detail with reference to Examples and Test Examples. However, these are intended to explain the present invention in more detail, and the scope of the present invention is not limited thereto.

≪ Example 1 >

The antimicrobial paint was obtained by mixing 10 parts by weight of a designated thinner and 0.5 parts by weight of silver zeolite with respect to 100 parts by weight of the acrylic resin solid content.

The antimicrobial paint obtained above was coated on the panel with a coating apparatus having a thickness of 20 ± 2 μm, and dried at 75 ± 5 ° C. for 10 minutes to prepare an antimicrobial paint coated panel.

<Example 2>

The antimicrobial paint was obtained by mixing 15 parts by weight of a designated thinner and 0.75 parts by weight of silver zeolite with respect to 100 parts by weight of the acrylic resin solid content.

The antimicrobial paint obtained above was coated on the panel with a coating apparatus having a thickness of 25 ± 1 μm, and dried at 135 ± 5 ° C. for 20 minutes to prepare an antimicrobial paint coated panel.

<Example 3>

The antimicrobial paint was obtained by mixing 20 parts by weight of a designated thinner and 1 part by weight of silver zeolite with respect to 100 parts by weight of the acrylic resin solid content.

The antimicrobial paint obtained above was coated on the panel to a thickness of 37.5 ± 2.5 μm with a coating apparatus, and then dried at 190 ± 5 ° C. for 30 minutes to prepare an antimicrobial paint coated panel.

<Example 4>

10 parts by weight of the designated thinner and 0.5 parts by weight of silver zeolite with respect to 100 parts by weight of the acrylic resin solid content were mixed under ultrasonic treatment at 60 kHz for 1.2 hours to obtain an antimicrobial paint.

The antimicrobial paint obtained above was coated on the panel with a coating apparatus having a thickness of 20 ± 2 μm, and dried at 75 ± 5 ° C. for 10 minutes to prepare an antimicrobial paint coated panel.

<Example 5>

15 parts by weight of the specified thinner and 0.75 parts by weight of silver zeolite were mixed under ultrasonic treatment at 60 kHz for 1.2 hours with respect to 100 parts by weight of the acrylic resin solid content to obtain an antimicrobial paint.

The antimicrobial paint obtained above was coated on the panel with a coating apparatus having a thickness of 25 ± 1 μm, and dried at 135 ± 5 ° C. for 20 minutes to prepare an antimicrobial paint coated panel.

<Example 6>

To 100 parts by weight of the acrylic resin solid content, 20 parts by weight of the specified thinner and 1 part by weight of the silver zeolite were mixed for 1 hour under 60 kHz ultrasonic treatment to obtain an antimicrobial paint.

The antimicrobial paint obtained above was coated on the panel to a thickness of 37.5 ± 2.5 μm with a coating apparatus, and then dried at 190 ± 5 ° C. for 30 minutes to prepare an antimicrobial paint coated panel.

<Example 7>

10 parts by weight of the designated thinner and 0.5 parts by weight of silver zeolite with respect to 100 parts by weight of the acrylic resin solid content were mixed under ultrasonic treatment at 60 kHz for 1.2 hours to obtain an antimicrobial paint.

The antimicrobial paint obtained above was coated on the panel with a coating device at a thickness of 20 ± 2㎛ and dried at 75 ± 5 ℃ for 10 minutes, followed by alternating voltage 100 ± 10W, pressure 20 ± 5torr, amount of hydrogen 20 ± 5sccm, time 15 Plasma treatment under the conditions of minutes to prepare an antimicrobial coating coated antimicrobial panel.

<Example 8>

15 parts by weight of the specified thinner and 0.75 parts by weight of silver zeolite were mixed under ultrasonic treatment at 60 kHz for 1.2 hours with respect to 100 parts by weight of the acrylic resin solid content to obtain an antimicrobial paint.

The antimicrobial paint obtained above was coated on the panel with a coating device at a thickness of 25 ± 1㎛ and dried at 135 ± 5 ℃ for 20 minutes, followed by alternating voltage 100 ± 10W, pressure 20 ± 5torr, amount of hydrogen 20 ± 5sccm, time 15 Plasma treatment under the conditions of minutes to prepare an antimicrobial coating coated antimicrobial panel.

Example 9

To 100 parts by weight of the acrylic resin solid content, 20 parts by weight of the specified thinner and 1 part by weight of silver zeolite were mixed for 60 hours under 60 kHz ultrasonic treatment to obtain an antimicrobial paint.

The above-mentioned antimicrobial paint was coated on the panel with a coating device to a thickness of 37.5 ± 2.5㎛, dried at 190 ± 5 ℃ for 30 minutes, and then alternating voltage 100 ± 10W, pressure 20 ± 5torr, amount of hydrogen 20 ± 5sccm, time 15 Plasma treatment under the conditions of minutes to prepare an antimicrobial coating coated antimicrobial panel.

<Test Example 1> Antibacterial test of the antibacterial material

Antimicrobial test method was carried out in the following manner.

After sterilizing a 250 ml Erlenmeyer flask, 1 ml of the previously cultured test bacteria was mixed with 99 ml of the sample, and incubated at 37 ° C. for 24 hours in a shake incubator. After 24 hours, the appropriate amount of the bacterial solution in the Erlenmeyer flask was smeared on the medium, and cultured in a 37 ° C. incubator for 24 hours to determine the number of bacteria.

On the other hand, the control group was cultured by shaking only 1ml of the test solution and 99ml of the buffer (buffer) in the Erlenmeyer flask was carried out in the same process as the test group.

Comparing the control test and the test group test to measure the bacterial reduction rate is shown in Table 1 below the experimental results.

E. coli (Escherichia coli ATCC 25922), P. aeruginosa (Staphylococcus aureus ATCC6538), and Salmonella (Salmonella typhimurium IFO 14193) were used for the test bacteria in the experiment.

In the experiment, a sample in which 50 parts by weight of silver zeolite was dissolved was used based on 100 parts by weight of purified water.

In Experimental buffer by mixing NaHPO ₄ 28.39g (0.2M) and NaH ₂ PO ₄ 23.99g (0.2M) in distilled water it was used to adjust the pH to be 7.2.

By the above experiment, the antibacterial test for E. coli, Pseudomonas aeruginosa, and Salmonella for the test group and the control group was performed. In the control group, the concentration was significantly increased after 24 hours compared to the initial concentration, and the bacterium remained unchanged, but the test group It can be confirmed through the above experiment that the lower than the initial concentration and the bacterial reduction rate is 99.8%.

As a result, zeolite was found to have antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa and Salmonella.

Table 1. Silver Zeolite Antibacterial Test Results

Test Items
Test result Test Methods Initial concentration
(CFU / 40p) Concentration after 24 hours (CFU / 40p) Bacterial Reduction Rate
(%) Escherichia coli
Antibacterial Experiment Control 424 2840 - KICM-FIR
-1002 Test group 424 One 99.8 Pyogenic bacteria
Antimicrobial Experiment Control 403 2744 - Test group 403 One 99.8 Salmonella
Antibacterial Experiment Control 418 2822 - Test group 418 One 99.8

<Test Example 2> antibacterial panel antibacterial test

After sterilizing a 250 ml Erlenmeyer flask, 1 ml of the previously cultured test bacteria was mixed with 99 ml of the sample, and incubated at 37 ° C. for 24 hours in a shake incubator. After 24 hours, the appropriate amount of the bacterial solution in the Erlenmeyer flask was smeared on the medium, and cultured in a 37 ° C. incubator for 24 hours to determine the number of bacteria.

On the other hand, the control group was cultured by shaking only 1ml of the test solution and 99ml of the buffer (buffer) in the Erlenmeyer flask was carried out in the same process as the test group.

Comparing the control test and the test group test to measure the bacteria reduction rate and the results are shown in Table 2 below.

E. coli (Escherichia coli ATCC 25922), P. aeruginosa (Staphylococcus aureus ATCC6538), and Salmonella (Salmonella typhimurium IFO 14193) were used for the test bacteria in the experiment.

Test bacteria in the experiment was used for the antimicrobial paint obtained in Example 1.

In Experimental buffer by mixing NaHPO ₄ 28.39g (0.2M) and NaH ₂ PO ₄ 23.99g (0.2M) in distilled water it was used to adjust the pH to be 7.2.

Table 2. Antimicrobial Test Results of Antimicrobial Panels

Test Items
Test result Test Methods Initial concentration
(CFU / 40p) Concentration after 24 hours (CFU / 40p) Bacterial Reduction Rate
(%) Escherichia coli
Antibacterial Experiment Control 418 2831 - KICM-FIR
-1003 Test group 418 2 99.9 Pyogenic bacteria
Antibacterial Experiment Control 401 2772 - Test group 401 2 99.9 Salmonella
Antibacterial Experiment Control 414 2813 - Test group 414 2 99.9

As shown in Table 2, as a result of testing the bacteria reduction rate by E. coli, Pseudomonas aeruginosa, and Salmonella, the concentration was increased after 24 hours compared to the initial concentration in the control group, but there was no bacterium reduction for the antimicrobial paint obtained in Example 1 In the test group, the concentration was lowered after 24 hours compared to the initial concentration, showing a 99.9% reduction in bacteria.

From these results, the antimicrobial panel coated with the antimicrobial paint obtained in Example 1 of the present invention also has an antimicrobial effect. Meanwhile, in the antimicrobial paint obtained in Example 1, only the change in the content of the antimicrobial paint and the coating and drying conditions differ. It was found that the antimicrobial panel prepared in Example 2 and the antimicrobial panel prepared in Example 3 also had an antimicrobial effect.

Example 3 Antibacterial Antifungal Test

The antifungal test for silver zeolite was carried out in the following manner.

Samples were applied to manure paper, 4 × 4 cm in size, placed on a mold growth medium, inoculated with 5 types of mold spore suspensions, and incubated for 4 weeks in an incubator of 29 ± 1 ℃ and 85% relative humidity. Mold growth was observed over time from 1 week to 4 weeks, and the results are shown in Table 3 below.

In the sample, a solution containing 50 parts by weight of silver zeolite dissolved in 100 parts by weight of purified water was used.

The fungal growth medium used PDA (Potato Dextrose Agar) medium.

The five fungal spore suspensions were suspensions of five strains of asperaillus niger ATCC 9642, penicillium pinophilum ATCC 11797, chaetomium giobosum ATCC 6205, gliosiadium virens ATCC 9645, and aureobasidium pullulans ATCC 15233.

Table 3. Silver Zeolite Antifungal Test Results

Test Items Anti-gom farm Incubation week 1 week later after 2 weeks 3 weeks later 4 weeks later Test result 0 0 0 0 Test Methods ASTM G-21

As shown in the results of Table 3, the five types of mold spore suspensions inoculated into the sample of the solution containing the silver zeolite did not generate mold growth and the silver zeolite was found to have antifungal properties.

Test Example 4 Antifungal Test of Antibacterial Panel

Except for using the antimicrobial paint obtained in Example 1 as a sample in the same manner as in Test Example 3 to the antifungal test on the antimicrobial paint of Example 1 of the present invention and the results are shown in Table 4 below. .

Table 4. Antifungal Test of Antibacterial Panel

Test Items Anti-gom farm Culture test period 1 week later after 2 weeks 3 weeks later 4 weeks later Test result 0 0 0 0 Test Methods ASTM G-21

As shown in the results of Table 4, the five types of mold spore suspensions inoculated in the sample of the antimicrobial paint containing the silver zeolite obtained in Example 1 did not develop the growth of the antimicrobial paint containing the silver zeolite obtained in Example 1 It was found to have antifungal properties.

From these results, the antimicrobial panel coated with the antimicrobial paint obtained in Example 1 of the present invention also has an antimicrobial effect. Meanwhile, in the antimicrobial paint obtained in Example 1, only the change in the content of the antimicrobial paint and the coating and drying conditions differ. It was found that the antimicrobial panel prepared in Example 2 and the antimicrobial panel prepared in Example 3 also had an antimicrobial effect.

As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art will be variously modified and modified within the scope of the present invention without departing from the spirit and scope of the invention described in the claims below. It will be appreciated that it can be changed.

The antimicrobial panel coated with an antimicrobial material according to the present invention does not have a risk of bacterial growth such as mold, so that it can be used as a wall of a food company, a hospital, a semiconductor company, a laboratory, etc., which requires cleanliness of bacteria, and thus provide a space having antimicrobial properties. Can be.

Claims (5)

In panel manufacturing, Method for producing an antimicrobial panel, characterized in that it comprises the step of coating and drying the antibacterial paint on the surface of the panel. The method for producing an antimicrobial panel according to claim 1, wherein the antimicrobial paint is a mixture of 10-20 parts by weight of designated thinner and 0.5-1 part by weight of silver zeolite with respect to 100 parts by weight of an acrylic resin solid content. The method of claim 1, wherein the coating and drying of the antimicrobial paint is coated with an antimicrobial paint to a thickness of 18 ~ 23㎛ and dried at 50 ~ 100 ℃ for 8 to 12 minutes, or the antimicrobial paint to a thickness of 24 ~ 26㎛ A method for producing an antimicrobial panel, which is dried at 100 to 170 ° C. for 15 to 25 minutes or coated with an antimicrobial paint at a thickness of 35 to 40 μm and dried at 185 to 195 ° C. for 25 to 35 minutes. An antimicrobial panel prepared by the method of any one of claims 1 to 3. A method of using the antimicrobial panel manufactured by the method of any one of claims 1 to 3 as a wall of a food factory, a wall of a hospital, a wall of a semiconductor factory, or a wall of a laboratory.