KR20120021967A - Lime paint composition having sick house low reduction effect, antibacterial and anti-mold properties - Google Patents

Abstract

The present invention relates to a lime paint composition having a reduced house sickness syndrome and having antibacterial and antifungal properties, and more particularly, to a lime-calcined slurry, a hydrated light dolomite or a mixture thereof, an aqueous adhesive resin, and titanium dioxide. The present invention relates to a lime paint composition in which the generation of volatile organic compounds that cause sick house syndrome, including ethylene vinyl alcohol, dolomite, a high fluidizing agent, an antifoaming agent, and a water stabilizer, is reduced and the antibacterial and anti-gompie properties are maintained.
According to the present invention, the use of water-based adhesive resins and no organic solvents reduces the release of environmental hormones, thereby reducing the release of chemicals that cause chemical hypersensitivity or sick house syndrome when applied to the interior wall of a house building. It can be, and can provide an aqueous lime paint composition made of an environmentally friendly material that has long-lasting antibacterial and antifungal properties.

Description

Lime paint composition having sick house low reduction effect, antibacterial and anti-mold properties

The present invention relates to an aqueous lime paint composition with reduced sick house syndrome and having antibacterial and antifungal properties.

The new house syndrome (Sick House Syndrome), which most people spend in their daily lives in apartments and other multi-use facilities, is becoming a new environmental issue. Since more than 90% of people live indoors daily, they are exposed to more than 10 times more harmful environment than the harmful effects of air pollution. The best way to solve the problem of sick house syndrome is to use all materials as eco-friendly materials in the manufacture of various interior materials and various materials required for construction, but it is expected to be effective in the construction market due to technical difficulties and economic dominance. It is difficult to do.

The most lethal factor in the indoor environment is the chemical factor, which is mainly composed of formaldehyde, volatile organic compounds (VOCs), and various gas streams generated from building interior materials. In particular, wallpaper or flooring adhesive is one of the main causes.

Therefore, developing a paint that does not emit harmful substances as one of the fundamental solutions is the most appropriate alternative at this point. In addition, the government has recently enacted the Indoor Air Management Act, such as a multi-use facility, in order to protect public health. In addition, the development of inexpensive materials with added antibacterial and antifungal functions is required for a comfortable environment and the health of residents.

Known techniques for solving the above problems include the following.

Japanese Patent Application Laid-Open No. 2005-105010 uses an adsorption function such as activated carbon to provide an inorganic removal material which is excellent in the adsorption and removal function of VOC causing the sick house syndrome, and also ensures the soundness, preservation, and ease of painting. Korean Patent No. 0656457 discloses volatility that can reduce the health problems of sick house syndrome and its residents by adsorbing organic chemicals (VOC, HCHO) generated from newly built buildings and building materials. The present invention relates to a method for preparing organic paints and coatings, and Korean Patent No. 0686371 discloses natural jade powder, ganban stone powder, an anion agent, zeolite, titanium dioxide, silicate-based inorganic liquid binder, liquid silver nano, liquid flavor capsule. Volatile organic compounds (VOCS) and formaldehyde which occur in cement concrete A liquid ceramic building finishing material which can reduce the concentration of harmful substances such as deodorant and has a deodorizing and antibacterial function is disclosed. Korean Patent No. 083170 has a mixture of slaked lime, polyvinyl alcohol and ethylene vinyl alcohol having a high CaO content. An environmentally friendly lime paint composition comprising an organic resin binder, talc, titanium dioxide, antibacterial / antifungal material, far infrared or anion-releasing functional material, and the like is disclosed. Korean Patent Publication No. 2010-0001790 discloses an acrylic resin. Alternatively, a material capable of physically and chemically removing volatile organic compounds generated from an acrylic resin or a styrene resin using a medium having a low influence on the physical properties of the styrene resin and the generation of the volatile organic compound while maintaining physical properties thereof This reduced acrylic resin or styrene resin is disclosed In addition, Korean Patent No. 0855035 sinters an illite, a hatite and tourmaline micromixture, and a water-soluble solvent and a stirred micromixture and an additive are mixed, and do not emit harmful substances harmful to the human body, A water soluble inorganic composition capable of removing and releasing anions is disclosed.

In addition, U. S. Patent Publication No. 6,042, 638 discloses a paint which is excellent in bactericidal properties by introducing calcined lime and a sufficient amount of cellulose-based binder in the paint, which can prevent carbon dioxide reacting with calcined lime and form a coating with an extended lifetime. have. The above technique has a coating film stability against carbon dioxide, but there is a problem that there is a barrier to water vapor.

U.S. Patent No. 6,280,509 discloses a mixture of hydrated lime and non-ionic polyolefin ester latex, which does not cause coagulation and phase separation of hydrated lime, and has a bactericidal lime paint, and Korean Patent Publication No. 195-0029322 discloses an inorganic material. Disclosed is an antimicrobial powder coating composition for forming a film on the surface of hospital equipment, home appliances, kitchen equipment, etc. by treating metal ions having antibacterial action to have antiseptic and antimicrobial properties. Korean Patent Publication No. 1996-0001057 discloses an antimicrobial agent of fine particles using inorganic materials (ZEOLITE, SILICAGEL, PHOPHATE, etc.) mixed with various resin coating raw material compositions to provide excellent antimicrobial, persistent, harmless to human body, heat resistance and stability. This improved antimicrobial paint is disclosed. Korean Patent Laid-Open Publication No. 2000-0055508 discloses an antimicrobial epoxy paint made of metal ions, zeolites, and the like, in which an inorganic antimicrobial agent in a fine powder state is introduced. Korean Patent Publication No. 2006-0084341 discloses an eco-friendly paint incorporating crushed high white mica (Mica), zinc powder, silver nitrate (AgNO 3), and far infrared sol (Sol). In Korean Patent No. 0674443, an aqueous binder includes charcoal and charcoal, and wood vinegar, herbal oil, powdery clay, rare earth, zeolite and elvan are mixed as subsidiary materials to release anion, deodorize function, antibacterial and sterilization, and toxic substance. Aqueous paint compositions with reduced aldehydes, volatile organic compounds, ammonia gas and the like are disclosed. Korean Patent No. 083170 includes high CaO content of lime, organic resin binder composed of polyvinyl alcohol and ethylene vinyl alcohol, talc, titanium dioxide, antimicrobial / antifungal material, far infrared or anion-releasing functional material, and the like. By this, the stability of the composition is excellent, the hardness, water resistance and adhesion to the interface are improved after curing, and the effects of deodorizing function, antifungal function, antibacterial function, humidity control function, far infrared ray / anion release function, etc. are expressed. Environmentally friendly lime paint compositions are disclosed. Korean Patent Publication No. 2008-0087435 discloses a paint composition having excellent antibacterial and deodorizing function by introducing a zeolite deodorant and an antibacterial agent. Korean Patent Publication No. 2010-0055730 discloses a paint which can be mixed with a silicate mineral, powder, ocher powder, tourmaline powder, oyster shell powder, and resin composition for paint in an appropriate ratio to obtain an antibacterial and deodorizing effect.

The present invention has been researched to provide a coating material introduced with a natural material that is excellent in adhesive strength, reduced sick house syndrome, excellent antibacterial and anti-fungal properties, and possible to create a pleasant environment, as a result, calcined lime, hydrogenated by hydrogenation The hydrated light dolomite was prepared in a slurry state to maintain a paste form, and it was confirmed that the lime paint composition including the water-based adhesive resin was excellent in drying, wet adhesion, and environmental stability.

Accordingly, an object of the present invention is to provide a lime coating composition having excellent antibacterial and anti-mildew characteristics and reducing volatile organic compounds that cause a sick house syndrome due to the introduction of hydrated lime or hydrated light dolomite slurry and a water-based adhesive resin. .

As an example for achieving the above object, the lime paint composition of the present invention, 20 to 75% by weight of hydrated or hydrated light dolomite slurry, 5 to 45% by weight of aqueous adhesive resin, 5 to 20% by weight of titanium dioxide, ethylene vinyl alcohol 1 To 15% by weight, Dolomite 5 to 25% by weight, 1 to 15% by weight of the high fluidizing agent, 1 to 15% by weight of the defoaming agent, characterized in that it comprises 1 to 15% by weight of the water stabilizer.

As another example for achieving the above object, the method for preparing a lime paint composition of the present invention, the hydrated lime or hydrated light dolomite powder is mixed with water in the range of 1 to 2 to 5 weight ratio and stirred with the beads for at least 1 hour at room temperature To prepare a slurry of hydrated lime or hydrated light dolomite, adding 5 to 45% by weight of an aqueous adhesive resin to 20 to 75% by weight of the slurry, and 5 to 25% by weight of dolomite to the slurry and the aqueous adhesive resin mixture. , 1 to 15% by weight of ethylene vinyl alcohol, 5 to 20% by weight of titanium dioxide, 1 to 15% by weight of an antifoaming agent, and 1 to 15% by weight of a moisture stabilizer.

Hereinafter, the present invention will be described in detail for each component constituting the composition.

First, the slurry includes slaked lime, hydrated hard dolomite or a mixture thereof. That is, the calcined lime, hydrated light calcinal dolomite is hydrolyzed quicklime, light calcinal dolomite, and by hydrolysing them, the antibacterial and antifungal properties are continuously expressed, and phase separation does not occur, resulting in stable pasty calcined lime or hydrated calcined dolomite slurry. Since it can manufacture, the manufacture of lime coating composition which has the advantage that the adhesiveness of paint and the stability of the dried coating film were improved is attained. More preferably, the slurry may be maintained in the solid content of the hydrated lime or hydrated light dolomite in the range of 30 to 50% by weight.

Slurry lime or hydrated light dolomite in the slurry state is included in the total composition 20 to 75% by weight, preferably in the range of 30 to 50% by weight, if the amount is less than the above range tends to precipitate on the slurry If the amount of use exceeds the above range, the slurry tends to be unable to maintain a stable paste phase.

In the present invention, a water-based adhesive resin is used instead of an organic solvent to reduce VOC, and the use of the water-based adhesive resin reduces the emission of environmental hormones and improves the working environment. The aqueous adhesive resin may be selected from styrene butadiene latex (SB latex) resin, butadiene-acrylonitrile, butadiene-styrene-acrylonitrile, acrylic resin, and the like, more preferably in the emulsion phase, solid content 49 ~ 51 wt%, 600 to 5,000cps, it is preferable to use a glass transition temperature of 0 ℃.

The water-based adhesive resin used in the present invention is an environment-friendly resin in the form of an emulsion and does not need to be dispersed separately, and has excellent dry and wet adhesion, thereby increasing the durability of the coating film, having no smell, non stickiness, and excellent aging resistance. Let's do it. In addition, it is excellent in chemical and mechanical stability by the carboxylation of latex particles, it is an environment-friendly water-based adhesive, excellent working environment and no indoor air pollutants. The introduction of water-based adhesive resin and dolomite and other additives make it possible to further exhibit advantages such as antibacterial and antifungal properties of lime paint.

The amount of the water-based adhesive resin is included in the total composition 5 to 45% by weight, preferably in the range of 10 to 40% by weight, and if the amount is less than the above range is not easily adhered to the interface and fall off easily If the amount of use exceeds the above range, the adhesive strength is excellent but the thickness tends to be easily cracked.

In the present invention, titanium dioxide having excellent photocatalytic activity is used for the reduction of substances causing the sick house syndrome. The amount of the titanium dioxide is contained in 5 to 20% by weight in the total composition, preferably in the range of 7 to 15% by weight is good, if the amount is less than the above range is enough to obtain a photocatalytic activity If the amount of use exceeds the above range, the effect obtained compared to the amount of use tends not to be economic.

In the present invention, hydrated lime or hydrated dolomite that is not sufficiently hydrolyzed, that is, ethylene vinyl alcohol which is an alcohol resin for inhibiting exothermic reaction between quicklime and light dolomite and sufficient dispersion of hydrogenated hydrated lime or hydrated dolomite. Ethylenevinylalcohol, EVA). The amount of the ethylene vinyl alcohol is contained in the total composition 1 to 15% by weight, preferably in the range of 5 to 12% by weight is good, if the amount is less than the range is less dispersibility tends to settle easily In this case, when the amount of use exceeds the above range, the dispersibility is improved but tends to be easily aggregated.

In the present invention, dolomite is used to further enhance the antibacterial and antifungal properties. The dolomite is more preferably used powder in the range of 325 to 425 mesh.

The amount of dolomite is included in the total composition of 5 to 25% by weight, preferably in the range of 6 to 22% by weight, and if the amount is less than the above range, the strength is weak and the shrinkage due to curing is large. There exists a tendency for a crack to arise, and when usage-amount exceeds a said range, it is excellent in intensity | strength, but it tends to take a long time to dry because of shrinkage property by hardening.

In the present invention, a high fluidizing agent is used to improve the fluidity of the aqueous lime paint. The high fluidizing agent may be selected and used widely in the art specifically, for example, at least one selected from sulfonates, sulfonates melamine, sulfonates melamine multicondensers, sulfonates melamine multicondensers superplasticizers, etc. Can be used. The amount of the high fluidizing agent is included in the total composition of 1 to 15% by weight, preferably in the range of 2 to 14% by weight, and if the amount is less than the above range, the flowability of the water-based coating is poor If the amount of use exceeds the above range, the flowability of the water-based paint becomes high, resulting in high viscosity and inferior workability.

In the present invention, an antifoaming agent is used to suppress the generation of bubbles during stirring of the composition, and the antifoaming agent may be selected from those widely used in the art. Specifically, for example, octyl alcohol, glycol derivatives, cyclohexane, silicone , At least one selected from the group consisting of a surfactant, polyoxyethylene, alkyl phenyl ether, and the like. The amount of the antifoaming agent is included in 1 to 15% by weight in the total composition, preferably in the range of 2 to 14% by weight is good, if the amount is less than the above range is a bubble is generated after applying to the coating object There is a tendency for air marks to occur, and when the amount of use exceeds the above range, bubbles are less likely to occur, but there is a tendency for marks such as oil to occur.

In the present invention, since the main component is a ceramic slurry, a water stabilizer is used according to long-term preservation, and as the water stabilizer, one widely used in the art may be selected and used, for example, sodium naphthalene sulfonate (soda). Formalin condensates, low molecular weight ammonium polyacrylates, low molecular weight styrene-ammonium copolymers, polyoxyethylene fatty acid esters or alkyl phenol ethers, sulfo succinic acid derivatives, polyethylene At least one selected from a block polymer with polypropylene occide and the like can be used. The amount of the water stabilizer is included in the total composition of 1 to 15% by weight, preferably in the range of 2 to 14% by weight, preferably less than the range is less affinity with moisture tends to If the amount of use exceeds the above range, the affinity with moisture is excellent, but agglomeration phenomenon occurs due to long term storage.

As described above, the lime paint composition of the present invention with reduced birdhouse syndrome is a stable paste-like lime paint, which satisfies the basic properties of the lime paint, and as shown in FIGS. The organic volatile compounds and formaldehyde meet the environmental certification of the paint certification.

Lime paint composition of the bird house syndrome of the present invention is prepared by the following process.

First, a 20 to 75% by weight slurry of hydrated lime or hydrated light dolomite is prepared by stirring with beads at room temperature. More specifically, limestone or dolomite is pulverized to a size of 20 to 30 mm and calcined at 900 to 1100 ° C. for at least 1 hour to prepare quicklime or hard dolomite, the quicklime or hard dolomite is pulverized and classified to a size of 100 to 150 μm. Hydrogenated and dried by mixing the particles having water in a weight ratio of 1: 2 to 5 to produce a hydrated lime or hydrated light dolomite, and the hydrated lime or hydrated light dolomite is adjusted to a solid content of 20 to 75% by weight at room temperature It is preferred to include a step of stirring the beads to prepare a slurry.

In addition, since the heat is generated in itself during the bead stirring in a high concentration of slurry, it must be reacted at room temperature, especially because the water-based paint and water-based resin is used, the temperature is hardened to the upper side when the temperature after the production at room temperature.

It is stirred while adding 5 to 45% by weight of an aqueous adhesive resin to the slurry. The water-based adhesive resin is as described above, the addition and stirring thereof is preferably made at room temperature conditions.

Dolomite 5 to 25% by weight, 1 to 15% by weight of ethylene vinyl alcohol, 5 to 20% by weight of titanium dioxide, 1 to 15% by weight of antifoam, and 1 to 15% by weight of water stabilizer were mixed with the slurry and the water-based adhesive resin mixture. And stir.

Lime paint composition of the present invention is a natural inorganic antimicrobial agent as a natural inorganic antimicrobial mineral of limestone (limestone), dolomite (calcite) of the carbonate mineral (calcium) dolomite (calcium) by the calcination of dolomite (light burned dolomite) aqueous It is a lime coating composition used as a main component of paint.

According to the present invention, by introducing calcined lime or hydrated cured dolomite into a stable paste state without phase separation, an aqueous paint can be used directly in a paste state without a separate agitation process, thereby improving workability. have.

In addition, harmful substances such as volatile organic compounds are reduced, and excellent antibacterial and antifungal properties without the addition of other antimicrobial and antifungal materials, and at the same time, excellent compatibility with water-based resins, hardness and interface after curing of the coating film The effect that the adhesive force with may improve can be expected.

According to the present invention, it is possible to provide a lime coating composition that is suitable for the indoor pollutant reduction material standard, which is an indoor air environment portion of the `` Housing Performance Rating Labeling Standard '', and which can improve indoor air quality.

Lime paint composition of the present invention is excellent in compatibility with synthetic resin by using the slurry of hydrated lime and hydrated light dolomite, excellent working environment when applied to the finishing of the interior wall of the house building without using organic solvent, environmental hormone Due to the low emission of chemicals, it is possible to expect eco-friendly effects with reduced chemical hypersensitivity and sick house syndrome.

Lime paint composition of the present invention can be expected to improve the hardness and adhesion to the interface, the bird's syndrome is reduced, the antimicrobial properties and anti-fungal properties, the environmentally friendly effect of long-term expression.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a test for prevention of sick house syndrome of lime coating composition of Example 1. FIG.
Figure 2 is a bird house syndrome prevention test report of the lime paint composition of Example 2.
Figure 3 is a bird house syndrome prevention test report of the lime paint composition of Example 3.
Figure 4 is a bird house syndrome prevention test report of the lime paint composition of Example 4.
5, 6, and 7 are antimicrobial test reports of the lime coating composition of Example 1. FIG.
8 and 9 are the antifungal test report of the lime paint composition of Example 1.
10, 11 and 12 are the antimicrobial test report of the lime paint composition of Example 2.
13 and 14 are the antifungal test report of the lime paint composition of Example 2.
15, 16 and 17 are antimicrobial test reports of the lime coating composition of Example 3.
18 and 19 are the antifungal test report of the lime paint composition of Example 3.
20, 21 and 22 are antimicrobial test reports of the lime coating composition of Example 4.
23 and 24 are antifungal test reports of the lime coating composition of Example 4.
25 is a photograph illustrating a drying time measurement of Example 1. FIG.

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

Example  1: slaked lime Slurry  Preparation of Lime Paint Composition Containing

38 wt% slurry of slaked lime prepared from bead stirring for 1 hour at room temperature with water and slaked lime, styrene butadiene latex (SB-Latex, S263) emulsion type (solid content of 50 wt%) 27 wt% (0.5 × 27 = 13.5 ), 14.25 wt% ethylene vinyl alcohol, 17.25 wt% dolomite, 8 wt% titanium dioxide, 5 wt% high fluidizing agent (sulfonate), 2 wt% antifoaming agent (octyl alcohol), water stabilizer (alkyl naphthalene sulfonate sodium carbonate (soda) 2% by weight of formalin (formalin condensate) was mixed and stirred to prepare a lime paint composition.

Example  2: slaked lime Slurry  Preparation of Lime Paint Composition Containing

38 wt% slurry of slaked lime, low VOC resin (acrylic resin, AP-3960), 27 wt% (50 wt% solids, 0.5 × 27 = 13.5), ethylene vinyl 11.25 wt% alcohol, 22.25 wt% dolomite, 8 wt% titanium dioxide, 3 wt% high fluidizing agent (sulfonate), 2 wt% antifoaming agent (octyl alcohol), water stabilizer (formalin of alkyl naphthalene sulfonate sodium carbonate (soda) 2% by weight of condensate) was mixed and stirred to prepare a lime paint composition.

Example  3: Hydrated Light Dolomite Slurry  Preparation of Lime Paint Composition Containing

Hydrated light dolomite 38 wt% slurry prepared by bead stirring water and hydrated light dolomite at room temperature for 1 hour, 27 wt% (50 wt% solid content) of styrene butadiene latex (SB-Latex, S263) emulsion type × 27 = 13.5), 11.25 wt% ethylene vinyl alcohol, 22.25 wt% dolomite, 8 wt% titanium dioxide, 3 wt% high fluidizing agent (sulfoate), 2 wt% antifoaming agent (octyl alcohol), water stabilizer (alkyl naphthalene sulfonic acid 2% by weight of formalin condensate of sodium carbonate (soda) was mixed and stirred to prepare a lime coating composition.

Example  4 : Hydrated Light Dolomite Slurry  Preparation of Lime Paint Composition Containing

38% by weight hydrated light dolomite slurry prepared by stirring the water and hydrated light dolomite at room temperature for 1 hour, low VOC resin (acrylic resin, AP-3960) 27% by weight (solid content 50% by weight, 0.5 × 27 = 13.5 ), 11.25 wt% ethylene vinyl alcohol, 22.25 wt% dolomite, 8 wt% titanium dioxide, 3 wt% high fluidizing agent (sulfonate), 2 wt% antifoaming agent (octyl alcohol), water stabilizer (sodium naphthalene sulfonate carbonate (soda) 2% by weight of formalin (formalin condensate) was mixed and stirred to prepare a lime paint composition.

Experimental Example  One : Sick house syndrome Reducibility  Confirm

The application of the lime coating composition prepared in Example 1 was requested to measure the reduction of sick house syndrome to the Korea Building Materials Testing and Research Institute. The certification levels are shown in Table 1 below.

Rating (Unit: mg / ㎡? H) very best Great Good General 1 General 2 Item TVOC HCHO TVOC HCHO TVOC HCHO TVOC HCHO TVOC HCHO standard 0.10
under 0.03
under 0.10 ~
0.20 0.03-
0.05 0.20-
0.40 0.05 ~
0.12 0.04-
2.00 0.12 ~
0.60 2.00 ~
4.00 0.60 ~
1.25 TVOC: 0.108 ~ 0.245 (excellent ~ good), HCHO: 0.008 ~ 0.034 (excellent ~ excellent)

Experimental Example  2 : Sick house syndrome Reducibility  Confirm

The application of the lime coating composition prepared in Example 2 was requested to measure the resistance to sick house syndrome to the Korea Building Materials Testing and Research Institute.

Experimental Example  3: Sick house syndrome Reducibility  Confirm

The application of the lime coating composition prepared in Example 3 was requested to measure the reduction of sick house syndrome to the Korea Building Materials Testing and Research Institute.

Experimental Example  4 : Sick house syndrome Reducibility  Confirm

The application of the lime coating composition prepared in Example 4 was requested to measure the sick house syndrome reduction to the Korea Building Materials Testing and Research Institute, shown in Figure 4 attached to the measurement test results of the birdhouse syndrome reduction.

1 to 4, it can be seen that the emission amount of total volatile organic compounds (TVOC) is significantly reduced, the toluene is hardly released, and the emission amount of formaldehyde, a toxic chemical, is significantly reduced.

Experimental Example  5: antibacterial and Antifungal  Property check

The application of the lime coating composition prepared in Example 1 was requested to measure the antimicrobial and anti-fungal properties to the Korea Building Materials Testing Institute, and attached to the results of the measurement test results of antibacterial and anti-fungal properties. It is shown in [Antibacterial] and FIGS. 8 and 9 [antifungal].

The strain used for the antimicrobial properties was found to have a bacterial concentration of 1.6 × 10 ⁶ . Escherichia coli coli ATCC 25922) and Pseudomonas Pseudomonas Pseudomonas Pseudomonas (CFU / ml) 1.6 × 10 ⁶ aeruginosa ATCC 15442), the bacterial reduction rate according to their growth was measured.

The fungi used to identify antifungal properties were five mixed strains ( Aspergillus niger ATCC 9642, Penicillium). pinophilum ATCC 11797, Chaetomium globosum ATCC 6205, Gliocladium vitens ATCC 9645, Aureobasidium pullulans ATCC 15233), and these were cultured.

As shown in Fig. 5 to 7, after 24 hours of E. coli and Pseudomonas aeruginosa culture, the bacterial reduction rate was 99.9%. In addition, as shown in Figures 8 and 9, it can be confirmed that the antifungal properties using the five mixed strains do not occur at all even after 4 weeks of culture.

Experimental Example  6: antibacterial and Antifungal  Property check

The application of the lime coating composition prepared in Example 2 was requested to measure the antimicrobial and antifungal properties to the Korea Institute of Construction Materials, and the results of the measurement test results of the antibacterial and antifungal properties confirmed drawings 10, 11 and 12 It is shown in [antibacterial] and FIGS. 1 and 14 [antifungal]. Strains used for antimicrobial and antifungal properties were the same as in Experimental Example 5.

As shown in Figures 10 to 12, after 24 hours of E. coli and Pseudomonas aeruginosa culture, the rate of bacterial reduction was 99.9%. In addition, as shown in Figure 13 and 14, the anti-fungal properties using the five mixed strains can be confirmed that no fungus occurs even after 4 weeks of culture.

Experimental Example  7: antibacterial and Antifungal  Property check

The application of the lime coating composition prepared in Example 3 was requested to measure the antimicrobial and antifungal properties to the Korea Institute of Construction Materials, and the results of the measurement test results of the antibacterial and antifungal properties confirmed drawings 15, 16 and 17 It is shown in [antibacterial] and FIG. 18 and 19 [antifungal]. Strains used for antimicrobial and antifungal properties were the same as in Experimental Example 5.

As shown in Figure 15 to 17, after 24 hours of E. coli and Pseudomonas aeruginosa culture, the rate of bacterial reduction was 99.9%. In addition, as shown in Figure 18 and 19, the anti-fungal properties using the five mixed strains can be confirmed that no mold occurs even after 4 weeks of culture.

Experimental Example  8: antibacterial and Antifungal  Property check

The application of the lime coating composition prepared in Example 4 was requested to measure the antimicrobial and antifungal properties to the Korea Institute of Construction Materials, and the measurement results of the antibacterial and antifungal properties test results attached drawings 20, 21 and 22 [Antibacterial] and shown in Figures 23 and 24 [antifungal]. Strains used for antimicrobial and antifungal properties were the same as in Experimental Example 5.

As shown in Fig. 20 to 22, the bacterial reduction rate was 99.9% compared to the initial after 24 hours of E. coli and Pseudomonas aeruginosa culture. In addition, as shown in Figure 23 and 24, it can be confirmed that the antifungal properties using the five mixed strains do not occur at all even after 4 weeks of culture.

Experimental Example  9: Check the drying time

By measuring the drying time of the lime paint composition prepared in Example 1 was carried out to find the physical properties of the hardness and adhesiveness of the coating film after curing is shown in Figure 25. The measurement time was 12 hours, and the coating amount was measured at 5 g and the coating thickness of 60 µm.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

.

Claims (11)

20 to 75 wt% slurry of calcined or hydrated light dolomite, 5 to 45 wt% of water-based adhesive resin (50 wt% of solid content), 5 to 20 wt% of titanium dioxide, 1 to 15 wt% of ethylene vinyl alcohol, 5 to 25 wt% of dolomite %, 1 to 15% by weight of the high fluidizing agent, 1 to 15% by weight of antifoaming agent, 1 to 15% by weight of water stabilizer, characterized in that it comprises a lime paint composition having a reduction, antibacterial and anti-fungal properties.
The method according to claim 1,
The lime has a CaO content of more than 74% by weight lime coating composition.
The method according to claim 1,
The hydrated light dolomite is a lime coating composition, characterized in that the total amount of CaO and MgO is 90% by weight or more.
The method according to claim 1,
The slurry of calcined lime or hydrated light dolomite is a lime paint composition, characterized in that the paste phase of 38% by weight slurry by bead stirring.
The method according to claim 1,
The water-based adhesive resin is any one selected from styrene butadiene latex (SB latex) resin, butadiene-acrylonitrile, butadiene-styrene-acrylonitrile and acrylic resin or a mixture thereof.
The method according to claim 1,
The water-based adhesive resin is in the form of an emulsion, the solids content of 49 to 51% by weight, 600 to 5,000cps, the glass coating temperature, characterized in that the lime paint composition.
The method according to claim 1,
The dolomite is a lime paint composition, characterized in that the powder of 325 to 425 mesh.
Mixing the hydrated lime or hydrated light dolomite powder with water in a range of 1 to 2 to 5, and stirring the beads together with beads for at least 1 hour at room temperature to prepare the hydrated lime or hydrated light dolomite slurry,
Stirring while adding 5 to 45 wt% of an aqueous adhesive resin to 20 to 75 wt% of the slurry, and
5 to 25% by weight of dolomite, 1 to 15% by weight of ethylene vinyl alcohol, 5 to 20% by weight of titanium dioxide, 1 to 15% by weight of antifoam, and 1 to 15% by weight of water stabilizer were mixed with the slurry and the water-based adhesive resin mixture. Stirring Process
Method for producing a lime paint composition having a bird house syndrome reduction, antibacterial and antifungal properties, comprising a.
The method according to claim 8,
The calcined lime or hydrated light dolomite slurry is pulverized limestone or dolomite in a size of 20 to 30 mm and calcined at 900 to 1100 ° C. for at least 1 hour to prepare quicklime or light dolomite, pulverize the quicklime or light dolomite and classify it. To hydrated and dried by mixing particles having a size of about 150 μm with water at a weight ratio of 1: 2 to 5 to produce hydrated lime or hydrated light dolomite, and a solid content of the hydrated lime or hydrated light dolomite at room temperature in a range of 20 to 75 The method for producing a lime paint composition, characterized in that the weight percent adjusted to be prepared by stirring.
The method according to claim 8,
The calcined lime or hydrated light dolomite powder has a particle size ranging from 100 to 150 μm.
The method according to claim 8,
The calcined lime or hydrated light dolomite slurry is a method for producing a lime paint composition, characterized in that the paste in the range of 20 to 75% by weight solid content.

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