KR101368190B1 - Method for antibacterial treatment of metallic furniture and anibacterial metallic furniuture - Google Patents

Method for antibacterial treatment of metallic furniture and anibacterial metallic furniuture Download PDF

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Publication number
KR101368190B1
KR101368190B1 KR1020130106783A KR20130106783A KR101368190B1 KR 101368190 B1 KR101368190 B1 KR 101368190B1 KR 1020130106783 A KR1020130106783 A KR 1020130106783A KR 20130106783 A KR20130106783 A KR 20130106783A KR 101368190 B1 KR101368190 B1 KR 101368190B1
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South Korea
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coating
furniture
antibacterial
metallic
metal
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KR1020130106783A
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Korean (ko)
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권재국
이장목
이해정
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(주)영일교구
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/14Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025Discharge apparatus, e.g. electrostatic spray guns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/04Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention relates to an antibacterial treatment method for metallic furniture and metallic furniture treated by the same and more specifically, an antibacterial treatment method for metallic furniture which is characterized by coating a paint composite consisting of epoxy-polyester powder coating paint, an antimicrobial agent, a sunscreen agent, and a dispersant on the surface of a metallic part of the furniture and treating the same by heating.

Description

금속가구의 항균처리 방법 및 그 처리방법에 따른 금속가구{METHOD FOR ANTIBACTERIAL TREATMENT OF METALLIC FURNITURE AND ANIBACTERIAL METALLIC FURNIUTURE}METHOD FOR ANTIBACTERIAL TREATMENT OF METALLIC FURNITURE AND ANIBACTERIAL METALLIC FURNIUTURE}

본 발명은 금속가구의 항균처리방법 및 그 처리방법에 따른 금속가구에 관한 것으로, 보다 상세하게는 항균성이 우수하고 항균범위가 광범위한 항균제와 분체도료를 이용하여 도장층의 내구성이 향상된 금속가구의 항균처리방법 및 그 처리방법에 따른 금속가구에 관한 것이다.
The present invention relates to an antibacterial treatment method of metal furniture and metal furniture according to the treatment method, and more particularly, antibacterial of metal furniture with improved antimicrobial properties and durability of the coating layer by using a wide range of antimicrobial agents and powder coatings. It relates to a treatment method and a metal furniture according to the treatment method.

일반적으로 사무실이나 가정 또는 교육기관 등에서 사용하는 책걸상 등의 가구류에는 금속제 틀과 같은 금속부분이 일정부분 존재하며, 보통 가구는 사용하는 도중에 땀과 같은 사람의 분비물이나 음식물 찌꺼기 또는 먼지 등이 묻게 되며, 이로 인해 각종 세균이 쉽게 번식하게 되는데 가구의 금속부분에도 이러한 세균 오염 문제가 상존한다. In general, there are some metal parts such as metal frames in furniture such as bookshelves used in offices, homes or educational institutions, etc.In general, furniture is exposed to human secretions such as sweat, food waste or dust, etc. Because of this, various bacteria are easily reproduced. Such bacterial contamination problem also exists in the metal part of furniture.

따라서, 이러한 세균에 의한 실내오염을 막기 위해 가구 및 문의 손잡이 등 실내 물품에 대한 항균처리방법이 연구되고 있다.Therefore, in order to prevent indoor contamination caused by such bacteria, antibacterial treatment methods for indoor items such as furniture and door handles have been studied.

등록특허공보 제687642호 “핸들의 항균처리방법”에는 핸들의 표면에 폴리우레탄층을 형성하고 우레탄 코팅된 핸들을 항균액이 장입된 용기에 침지하여 항균성나노액을 우레탄층에 침투시키고 인출하여 열소성하여 핸들을 항균처리하는 방법이 개시되어 있다. 이와 같은 발명은 항균성 나노액이 무엇인지 명확하게 특정되어 있지 않으며, 핸들 위에 폴리우레탄 코팅을 행하여 코팅층이 형성되면 폴리우레탄 코팅층 내에 항균성 나노액이 침투하기 어려우며 코팅층 표면에 단순 코팅되어서 층을 형성하는 정도이어서 항균내후성이 좋지 않은 문제점이 있다.Patent No. 687642 “Antibacterial treatment method of the handle” includes forming a polyurethane layer on the surface of the handle and immersing the urethane coated handle in a container loaded with antimicrobial liquid to infiltrate and withdraw the antimicrobial nano liquid into the urethane layer. A method of antibacterial treatment of a handle by firing is disclosed. This invention is not clearly specified what the antimicrobial nano-liquid, and if a coating layer is formed by performing a polyurethane coating on the handle, the antimicrobial nano-liquid is difficult to penetrate into the polyurethane coating layer and the degree of forming a layer by simply coating the surface of the coating layer Then there is a problem that the antibacterial weather resistance is not good.

다른 종래기술로는 등록실용신안공보 제371730호 “도어록용 항균손잡이”에는 금속재 또는 플라스틱재에 금속도금층이 형성된 도금층위에 이산화티타늄(TiO2) 0.5~5중량%, 이산화규소(SiO2) 1~10 중량%, 산화알미늄(Al2O3) 0.2~3 중량%, 에탄올 30~80 중량%, 물 5~30 중량%로 이루어진 용제에 나노실버 100~700ppm으로 이루어진 액상으로 손잡이 도금층 표면에 스프레이 함침 등의 방법에 의해 자연 또는 열처리 건조된 항균코팅층이 형성된 도어록용 항균손잡이가 개시되어 있다. 이와 같은 발명은 손잡이의 금속도어층위에 살균성분위기를 형성하기 위해 항균탈취기능을 하는 이산화티탄 및 무기성의 항균제인 나노실버를 표면에 스프레이 및 함침방법으로 코팅함으로써 우수한 항균탈취기능을 기대할 수 있으나 이산화티탄 및 나노실버를 함유하는 코팅층의 조성을 보면 이산화티탄 및 나노실버 이외에 실리카, 산화알루미늄 에탄올, 물로 조성된 액상조성물로 이 조성물을 손잡 금속도금층위에 강력하게 결합시키는 물질이 미흡함으로써 쉽게 마모 손실될 수 있어 사용 초기단계에는 살균, 항균, 및 탈취기능을 기대할 수 있으나 시간 흐름에 따라 점차 코팅층이 벗겨질 수 있어 항균내후성이 약한 문제점이 있다.
In another conventional technique, registered utility model No. 371330, "Antibacterial handle for door lock", contains 0.5 to 5% by weight of titanium dioxide (TiO 2 ) on a plating layer on which a metal plating layer is formed on a metal or plastic material, and silicon dioxide (SiO 2 ) 1 to Spray impregnated on the surface of the handle plating layer with a liquid consisting of 100 to 700 ppm of nano silver in a solvent composed of 10 wt%, 0.2 to 3 wt% of aluminum oxide (Al 2 O 3 ), 30 to 80 wt% of ethanol, and 5 to 30 wt% of water. The antimicrobial handle for door lock in which the antimicrobial coating layer which was naturally or heat-treated dried by the method of this etc. is disclosed. Such an invention can be expected to be excellent antibacterial deodorizing function by coating the surface of the metal door layer of the handle with titanium dioxide and antimicrobial nano silver which is an antibacterial deodorizing function to the surface by spraying and impregnation method, but titanium dioxide In addition, the composition of the coating layer containing nano silver is a liquid composition composed of silica, aluminum oxide ethanol, and water in addition to titanium dioxide and nano silver, and the material which strongly bonds the composition to the metal plating layer of the hand can be easily lost and used. In the early stages, antiseptic, antibacterial, and deodorant functions can be expected, but the coating layer may be gradually peeled off over time, so that the antibacterial weather resistance is weak.

등록특허공보 제687642호Patent Application Publication No. 687642 등록실용신안공보 제371730호Utility Model Registration No. 371330

본 발명은 이러한 문제점을 해결하기 위해 안출된 것으로, 본 발명의 목적은 항균성이 우수하고 항균범위가 광범위한 항균제를 분체도료와 혼합하여 정전 도장함으로써 항균기능을 지속적으로 유지할 수 있는 금속가구의 항균처리방법 및 이를 이용한 금속가구를 제공하는 데 있다.
The present invention has been made to solve such a problem, the object of the present invention is an antimicrobial treatment method of metal furniture that can maintain the antibacterial function by electrostatic coating mixed with an antimicrobial agent and a wide range of antimicrobial range with powder coating. And to provide a metal furniture using the same.

위 목적을 달성하기 위하여 본 발명의 일 실시예에 따른 금속가구의 항균 처리방법은 에폭시-폴리에스터계 분체도료, 항균제, 자외선차단제, 분산제를 포함하는 도료 조성물을 가구의 금속부분 표면에 정전도장하고 열처리하는 것을 특징으로 한다.In order to achieve the above object, the antibacterial treatment method of metal furniture according to an embodiment of the present invention is electrostatic coating the coating composition including the epoxy-polyester-based powder coating, antimicrobial agent, sunscreen, dispersing agent on the surface of the metal part of the furniture and It is characterized in that the heat treatment.

상기 상기 도료 조성물은 에폭시-폴리에스터계 분체도료 92.5~96.5 중량%, 항균제2.5~4.5 중량%, 자외선 차단제 0.5~1.5 중량% 및 분산제 0.5~1.5 wt%를 포함하는 것일 수 있다.The coating composition may include 92.5 to 96.5 wt% of epoxy-polyester based powder coating, 2.5 to 4.5 wt% of antimicrobial agent, 0.5 to 1.5 wt% of sunscreen and 0.5 to 1.5 wt% of dispersant.

상기 열처리는 230~250℃에서 10~13분 간 이루어지는 것일 수 있다.
The heat treatment may be made for 10 to 13 minutes at 230 ~ 250 ℃.

본 발명에 의한 금속가구의 항균처리 방법에 따르면, 분체도료를 이용한 정전도장방식으로 도료의 사용량을 줄일 수 있는 장점이 있고, 도장층 전체적으로 항균제가 고루 분산되어 균일한 항균성능을 얻을 수 있으며, 도장층의 내구성이 향상되어 오랜시간 동안 항균성능을 유지할 수 있는 효과가 있다.
According to the antibacterial treatment method of metal furniture according to the present invention, there is an advantage that can reduce the amount of paint by the electrostatic coating method using the powder coating, can be uniformly dispersed throughout the coating layer to obtain a uniform antibacterial performance, coating The durability of the layer is improved, there is an effect that can maintain the antibacterial performance for a long time.

여기서 사용되는 전문용어는 단지 특정 실시예를 언급하기 위한 것이며, 본 발명을 한정하는 것을 의도하지 않는다. 여기서 사용되는 단수 형태들은 문구들이 이와 명백히 반대의 의미를 나타내지 않는 한 복수 형태들도 포함한다. 명세서에서 사용되는 "포함하는"의 의미는 특정 특성, 영역, 정수, 단계, 동작, 요소 및/또는 성분을 구체화하며, 다른 특정 특성, 영역, 정수, 단계, 동작, 요소, 성분 및/또는 군의 존재나 부가를 제외시키는 것은 아니다.The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

다르게 정의하지는 않았지만, 여기에 사용되는 기술용어 및 과학용어를 포함하는 모든 용어들은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 일반적으로 이해하는 의미와 동일한 의미를 가진다. 보통 사용되는 사전에 정의된 용어들은 관련기술문헌과 현재 개시된 내용에 부합하는 의미를 가지는 것으로 추가 해석되고, 정의되지 않는 한 이상적이거나 매우 공식적인 의미로 해석되지 않는다.
Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Commonly used predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 의한 금속가구의 항균처리 방법 및 그 처리방법에 따른 금속가구에 대하여 설명하기로 한다.Hereinafter, with reference to the accompanying drawings it will be described with respect to the antibacterial treatment method of metal furniture and metal furniture according to the treatment method according to an embodiment of the present invention.

본 발명의 일 실시예에 따른 금속가구의 항균처리방법은 에폭시-폴리에스터계 분체도료, 항균제, 자외선차단제, 분산제를 포함하는 도료 조성물을 금속가구 표면에 정전도장하고 열처리 하는 것을 특징으로 한다.Antibacterial treatment method of metal furniture according to an embodiment of the present invention is characterized in that the coating composition comprising an epoxy-polyester-based powder coating, antimicrobial agent, sunscreen, dispersant electrostatic coating and heat treatment on the surface of the metal furniture.

먼저, 본 발명의 실시예에 따른 도료 조성물에 대하여 설명한다. First, the coating composition according to an embodiment of the present invention will be described.

에폭시-폴리에스터계 분체도료는 용제를 사용하지 않고 분말 상태에 도장하고 가열하여 용융시켜 도막을 형성하는 도료로서 열경화성 타입에 해당한다. Epoxy-polyester-based powder coating is a thermosetting type paint which is coated in a powder state without using a solvent, heated and melted to form a coating film.

이러한 분체도료는 유동침적법, 정전 도장법 등에 의해 도장을 형성시킬 수 있으며, 유기 용제를 전혀 사용하지 않기 때문에 휘발성 유기 화합물(VOC)이 적고, 환경 보호에 적합한 도료이다. 또한, 유기용제로 인하로 인한 중독이나 인화의 위험도 없고 도장층은 수십 마이크로미터에서 수백 마이크로미터 정도로 용제계에서 발생되는 돌출이나 패임이 적고, 내구성이 우수한 장점이 있다.These powder coatings can be formed by flow deposition, electrostatic coating, or the like. Since they do not use any organic solvents, they are low in volatile organic compounds (VOC) and are suitable for environmental protection. In addition, there is no risk of poisoning or ignition due to the organic solvents, and the coating layer has advantages of having few protrusions or dents in the solvent system and having excellent durability.

또한 공정에서 도착되지 않은 도료는 회수하여 재이용하는 것이 가능하여 용제계 도료보다 낮은 량을 도장층을 형성시킬 수 있는 장점이 있다.In addition, the paint that has not arrived in the process can be recovered and reused, there is an advantage that can form a coating layer with a lower amount than the solvent-based paint.

본 발명에서 사용되는 에폭시-폴리에스터계 분체도료는 조광페인트의 상표명 POWLAC EP100 게열의 분체도료가 사용될 수 있다. 용융점 범위가 75~105℃이며, 비중은 1.60±0.05인 백색 분체도료로서 입자크기 분포가 100㎛이상이 약 0~3%이고, 32㎛이상이 55~65%에 해당한다. Epoxy-polyester-based powder coating used in the present invention may be a powder coating of POWLAC EP100 heat treatment of the light control paint. Melting point range is 75 ~ 105 ℃, specific gravity is 1.60 ± 0.05, white powder coating, particle size distribution is more than 100㎛, about 0 ~ 3%, and 32㎛ or more corresponds to 55 ~ 65%.

상기 도료 조성물에서 에폭시-폴리에스터계 분체도료의 함량은 92.5~96.5 wt%인 것이 바람직하다. 에폭시-폴리에스터계 분체도료의 함량이 92.5wt% 미만인 경우 금속가구의 도장층이 충분한 내구성을 유지하기 어려워질 수 있으며 96.5wt% 초과인 경우 분체도료의 함량의 너무 많아 항균기능 및 내광성이 충분히 발휘되지 못할 수 있다.The content of the epoxy-polyester-based powder coating in the coating composition is preferably 92.5 ~ 96.5 wt%. If the content of epoxy-polyester powder coating is less than 92.5wt%, it may be difficult for the paint layer of metal furniture to maintain sufficient durability. If it is more than 96.5wt%, the content of powder coating is too high to show antibacterial function and light resistance. You may not be able to.

항균제는 아성정밀화학 주식회사의 BACTOCIDE-300Z CA제품으로 항균기능이 우수하고 광범위한 무기계 혼합항균제로서 산화칼슘을 주 성분으로 포함하는 것이 사용될 수 있으며 산화칼슘 이외에 산화규소, 산화알루미늄, 은, 아연, 나트륨 등이 포함될 수 있다. 이는 광범위한 세균, 곰팜이, 조류 등에 효과를 나타낸다. 특히 환경오염이 없고 무독성이며, 내약품성, 내열성, 내후성이 우수하다. Antibacterial agent is BACTOCIDE-300Z CA product of ASUNG Fine Chemical Co., Ltd. It has excellent antibacterial function and can be used as a broad range of inorganic mixed antimicrobial agent which contains calcium oxide as a main component. In addition to calcium oxide, silicon oxide, aluminum oxide, silver, zinc, sodium, etc. This may include. It is effective in a wide range of bacteria, gom palm, algae and the like. In particular, it is free of environmental pollution, nontoxic, and has excellent chemical resistance, heat resistance and weather resistance.

상기 항균제의 함량은 2.5~4.5 wt%인 것이 바람직하다. 항균제의 함량이 2.5wt% 미만인 경우 충분한 항균성능효과가 발휘되지 못할 수 있으며, 4.5wt% 초과인 경우 항균제가 과다 포함되어 염수분무시험 및 내광성 시험 후 표면이 부풀어 오르는 등의 도장층의 내구성에 문제가 발생할 수 있다.The content of the antimicrobial agent is preferably 2.5 to 4.5 wt%. If the content of the antimicrobial agent is less than 2.5wt%, sufficient antimicrobial effect may not be exhibited. If the antimicrobial agent is more than 4.5wt%, the antimicrobial agent may be included in excess, causing problems in the durability of the coating layer such as the surface swelling after the salt spray test and the light resistance test. May occur.

자외선 차단제는 도막의 내광성을 향상시키기 위해 도료 조성물에 첨가되는 것으로서, 자외선 차단제로는 벤조트라이졸계, 아크릴로니트릴계, 유기니켈화합물과 모노벤조익엑시드계 중에 선택되는 하나 이상의 자외선차단제를 사용할 수 있다. The sunscreen is added to the coating composition to improve the light resistance of the coating film, and as the sunscreen, one or more sunscreens selected from benzotriazole-based, acrylonitrile-based, organic nickel compounds, and monobenzoic acid-based may be used. .

상기 자외선 차단제의 함량은 0.5~1.5 wt%인 것이 바람직하다. 자외선 차단제의 함량이 0.5wt% 미만인 경우 내광성을 충분히 확보하기 어려워질 수 있으며, 1.5 wt% 초과인 경우 내식성과 내마모성이 저하될 수 있다.The content of the sunscreen is preferably 0.5 to 1.5 wt%. If the content of the sunscreen is less than 0.5wt% it may be difficult to secure enough light resistance, if the content of more than 1.5wt% may lower the corrosion resistance and wear resistance.

분산제는 도장층내에 항균제와 자외선차단제의 분산성을 향상시키기 위해서 투입되는 것으로서, 분산제가 투입되지 않는 경우에 항균제 및 자외선차단제가 도장층 내에서 균일하게 분포되지 않게 되어 일부에 집중될 수 있으며, 이 경우에 일정한 항균력을 유지할 수 없게 될 수 있다.The dispersant is added to improve the dispersibility of the antimicrobial agent and the sunscreen in the coating layer, and when the dispersant is not added, the antimicrobial agent and the sunscreen may not be uniformly distributed in the coating layer and may be concentrated in part. In some cases, it may not be possible to maintain a certain antimicrobial activity.

분산제로는 파라핀 왁스가 사용될 수 있으며, 도료 조성물의 항균제 및 자외선차단제를 도장층에 고루 분산시키기 위해서, 분산제의 함량은 0.5~1.5 wt%인 것이 바람직하다. Paraffin wax may be used as the dispersant, and in order to disperse the antimicrobial agent and the sunscreen agent of the coating composition evenly in the coating layer, the content of the dispersant is preferably 0.5 to 1.5 wt%.

이러한 도료 조성물을 가구의 금속부분에 도장층을 형성함에 있어서, 다양한 도장방법이 이용될 수 있으나 본 발명의 실시예에 사용되는 정전도장 처리방법은 분무도장법의 하나로서 고전압 하에서 음(-)으로 대전된 분체를 접지된 피도물에 분사하여 전기적으로 부착시킨 후 가열 용융하여 도막화 시키는 방법으로, 그 원리는 용제형 정전 도장과 크게 다를 바 없으며 한번 부착된 분체 도료는 일반적으로 전기 저항이 높아 방전하기 어렵기 때문에 세팅중에서 피도물에서 떨어지는 경우가 없고, 분체 도료는 어느 정도의 두께로 부착하면 분체끼리 서로 크게 반발하게 되어 그 이상의 두께로는 부착하지 않게 되는 성질을 가지고 있는데, 이를 정전 평형 현상이라한다. 이러한 현상이 피도물의 도막 두께를 균일하게 해 줄 수 있는 장점이 있다.In forming the coating layer on the metal part of the furniture composition, various coating methods may be used, but the electrostatic coating method used in the embodiment of the present invention is one of the spray coating methods, and is negatively charged under high voltage as a spray coating method. The powder is sprayed onto the grounded object to be electrically attached, and then melted and heated to form a film. The principle is not much different from solvent-type electrostatic coating, and the powder coating once attached is generally hard to discharge due to its high electrical resistance. Therefore, it does not fall off the coating during the setting, and the powder coating material has a property that when the powder is attached to a certain thickness, the powders repel each other greatly and do not adhere to a thickness higher than this, which is called an electrostatic equilibrium phenomenon. This phenomenon has the advantage of making the coating film thickness uniform.

본 발명의 실시예에서는, 피도체인 가구의 금속부분에 (-)전기를 대전시고 도료 조성물에 (+) 전기를 대전시켜 정전도장기로 스프레이 압력 3.0 bar,kg/cm2으로 정전도장처리 하게 된다.In the embodiment of the present invention, to charge the (-) electricity to the metal part of the furniture to be charged and (+) electricity to the coating composition to electrostatic coating at a spray pressure of 3.0 bar, kg / cm 2 with an electrostatic coating machine. do.

이와 같은 정전도장의 장점은 평판상의 피도물에서는 30%, 입체적인 피도물에는 50% 정도의 도료 절약효과를 얻을 수 있고 도료의 미세입자가 비산하지 않아 작업환경을 향상시킬 수 있으며 피도물의 표면뿐만 아니라 뒷면까지도 도료입자가 부착되며 노동력 절감 및 도장능력이 크고 스프레이 분사압에 정전기 발생에 의한 인력의 추가로 대해져 피도물의 표면과 밀착효과가 크게 되어 장식성을 위해 복잡한 형상을 가진 가구의 금속부분의 도장에 효과적인 도장방법이라고 할 수 있다.The advantages of electrostatic coating are 30% for flat coatings and 50% for three-dimensional coatings, and it is possible to improve the working environment because the fine particles of paint are not scattered. It is effective for painting metal parts of furniture with complicated shape for decoration because the paint particles are attached and the labor force and painting ability are large, and the manpower caused by static electricity generation is added to the spray injection pressure. It can be called a painting method.

정전도장법에 의해 가구의 금속부분에 도장층을 형성한 후에는 열처리하여 분체도료를 용융시킴으로서 최종적인 도장층을 형성하게 된다.After the coating layer is formed on the metal part of the furniture by the electrostatic coating method, the powder coating is melted to form the final coating layer.

통상적인 에폭시-폴리에스터계의 열처리 조건은 약 180℃의 온도에서 약 10분간 이루어지나, 본 발명의 실시예에서는 230~250℃ 에서 10~13분간 이루어지는 것이 바람직하다. 종래의 분체도료의 경우 180℃에서 약 10분간 열처리를 하여 용융시켜 도장층을 형성하게 되나, 본 발명의 실시예에서는 도장층의 표면강화를 위하여 온도범위를 상승시키는 것이 바람직하다. 다만, 불필요하게 온도를 높이기 되면 도장층의 표면강화 효과는 미미한 반면에 에너지 소모가 많게 되므로 상기 범위로 한정하는 것이 바람직하다.The heat treatment conditions of conventional epoxy-polyester-based is about 10 minutes at a temperature of about 180 ℃, in the embodiment of the present invention is preferably made for 10 to 13 minutes at 230 ~ 250 ℃. In the case of the conventional powder coating is heat-treated at 180 ℃ for about 10 minutes to melt to form a coating layer, in the embodiment of the present invention, it is preferable to increase the temperature range to strengthen the surface of the coating layer. However, if the temperature is unnecessarily increased, the surface strengthening effect of the coating layer is insignificant, but the energy consumption is increased.

이와 같은 항균처리 방법은 도장층의 강도가 강하고 잘 벗겨지지 않으며 도료의 손실이 적을 뿐만 아니라 사용한 분말 도료의 재생사용이 가능하다는 장점이 있다. Such an antibacterial treatment method has the advantage that the strength of the coating layer is hard to peel off, the loss of paint is small, and the regeneration of the used powder paint is possible.

또한, 이와 같이 처리된 금속가구는 도장층이 내구성, 내식성 및 내광성이 높으며, 항균제가 도장층 내부에 골고루 분산되어 가구의 통상적인 사용환경에서 사용기간에 걸쳐 광범위한 항균효과를 유지할 수 있게 된다.
In addition, the metal furniture treated as described above has a high durability, corrosion resistance and light resistance of the coating layer, and the antimicrobial agent is evenly dispersed in the coating layer to maintain a wide range of antimicrobial effects over a period of use in a normal use environment of furniture.

이하 실험예를 통하여 본 발명의 일 실시예에 따라 항균처리된 도장층의 다양한 조건에서의 항균성능을 설명한다.Hereinafter, the antimicrobial performance under various conditions of the antimicrobial coating layer according to one embodiment of the present invention will be described.

먼저, 에폭시-폴리에스터계 분체도료 96 wt%, 항균제 2.0 wt%, 벤조트라아졸 자외선 차단제 1wt% 및 분산제(WAX) 1wt%를 포함하는 도료조성물과 에폭시-폴리에스터계 분체도료 95 wt%, 항균제 3.0 wt%, 벤조트라아졸 자외선 차단제 1 wt% 및 분산제(WAX) 1 wt%를 포함하는 도료조성물을 각각 10cm X 10cm X 1mm 규격의 냉연강판에 정전도장하여 도장층을 형성한 후에 240℃의 온도에서 12분간 열처리하여 시편을 제조하였다. First, paint composition comprising 96 wt% of epoxy-polyester powder coating, 2.0 wt% of antibacterial agent, 1 wt% of benzotriazole sunscreen and 1 wt% of dispersant (WAX), 95 wt% of epoxy-polyester powder coating, and antibacterial agent. A paint composition comprising 3.0 wt%, 1 wt% of benzotriazole sunscreen and 1 wt% of dispersant (WAX) was electrostatically coated on a cold rolled steel sheet having a size of 10 cm X 10 cm X 1 mm, respectively, to form a coating layer, followed by a temperature of 240 ° C. The specimen was prepared by heat treatment at 12 minutes.

본 발명에 따른 금속가구의 항균처리방법에 의한 항균효과를 검증하기 위해 KICM-FIR-1003의 시험방법에 테스트하고 그 결과를 표1에 나타내었다. 하기 표1과 같이 항균처리를 하지 않은 금속판의 경우 대장균의 세균 감소율이 76.9%인 것에 비하여 항균처리를 한 금속판의 경우 항균제의 함량에 따라 각각 99.0%, 99.9%로 감소율이 월등히 향상된 것을 확인할 수 있었다. 특히 본 발명의 항균제의 함유 범위인 3%에서는 24시간 시료 배양후 대장균 및 화농균의 수가 10 미만으로 현격하게 감소하는 것을 알 수 있다. In order to verify the antimicrobial effect of the antibacterial treatment method of metal furniture according to the present invention was tested in the test method of KICM-FIR-1003 and the results are shown in Table 1. As shown in Table 1, in the case of the non-antibacterial metal plate, the reduction rate of the bacterium in Escherichia coli was 76.9%, and the reduction rate was significantly improved to 99.0% and 99.9%, respectively, according to the content of the antimicrobial agent. . In particular, it can be seen that in the 3% containing range of the antimicrobial agent of the present invention, the number of Escherichia coli and P. aeruginosa is significantly reduced to less than 10 after 24 hours of sample culture.

항균실험결과Antibacterial Test Results 항목Item 구분division 금속판plate 항균처리 금속판(2%)Antibacterial Metal Plate (2%) 항균처리 금속판(3%)Antibacterial Metal Plate (3%)
대장균


Escherichia coli

대장균수(초기)Coliform bacteria (initial) 3.4×105 3.4 × 10 5 3.4×105 3.4 × 10 5 3.4×105 3.4 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 5.2×105 5.2 × 10 5 5.2×105 5.2 × 10 5 5.2×105 5.2 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.2×105 1.2 × 10 5 5.0×103 5.0 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 76.976.9 99.099.0 99.999.9
화농균


Pyogenic bacteria

화농균수(초기)Purulent bacteria count (initial) 2.8×105 2.8 × 10 5 2.8×105 2.8 × 10 5 2.8×105 2.8 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 4.8×105 4.8 × 10 5 4.8×105 4.8 × 10 5 4.8×105 4.8 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.1×105 1.1 × 10 5 4.6×103 4.6 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 77.177.1 99.099.0 99.999.9

또한 내구성 실험으로 내식성 평가를 위한 염수분무시험후 항균시험결과, 내광성시험 후 항균시험 결과 및 내마모성 시험 후 항균시험결과를 각각 표2 내지 표4에 각각 나타내었다.In addition, the antibacterial test results after the salt spray test for evaluation of corrosion resistance, the antibacterial test results after the light resistance test and the antibacterial test results after the abrasion resistance test for durability test are shown in Tables 2 to 4, respectively.

KSD9502염수분무시험후 항균시험결과(5% NaCl 120시간후)Antibacterial test results after KSD9502 salt spray test (after 120% of 5% NaCl) 항목Item 구분division 금속판plate 항균처리 금속판(2%)Antibacterial Metal Plate (2%) 항균처리 금속판(3%)Antibacterial Metal Plate (3%)
대장균


Escherichia coli

대장균수(초기)Coliform bacteria (initial) 3.6×105 3.6 × 10 5 3.6×105 3.6 × 10 5 3.6×105 3.6 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 5.3×105 5.3 × 10 5 5.3×105 5.3 × 10 5 5.3×105 5.3 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.3×105 1.3 x 10 5 5.1×103 5.1 x 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 75.575.5 99.099.0 99.999.9
화농균


Pyogenic bacteria

화농균수(초기)Purulent bacteria count (initial) 2.9×105 2.9 × 10 5 2.9×105 2.9 × 10 5 2.9×105 2.9 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 4.7×105 4.7 × 10 5 4.7×105 4.7 × 10 5 4.7×105 4.7 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.2×105 1.2 × 10 5 4.5×103 4.5 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 74.574.5 99.099.0 99.999.9

KSM3803의 내광성시험(250시간)후 항균시험결과Antibacterial test result after light resistance test (250 hours) of KSM3803 항목Item 구분division 금속판plate 항균처리 금속판(2%)Antibacterial Metal Plate (2%) 항균처리 금속판(3%)Antibacterial Metal Plate (3%)
대장균


Escherichia coli

대장균수(초기)Coliform bacteria (initial) 3.5×105 3.5 × 10 5 3.5×105 3.5 × 10 5 3.5×105 3.5 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 5.1×105 5.1 × 10 5 5.1×105 5.1 × 10 5 5.1×105 5.1 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.3×105 1.3 x 10 5 5.0×103 5.0 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 74.574.5 99.099.0 99.999.9
화농균


Pyogenic bacteria

화농균수(초기)Purulent bacteria count (initial) 2.7×105 2.7 × 10 5 2.7×105 2.7 × 10 5 2.7×105 2.7 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 4.6×105 4.6 × 10 5 4.6×105 4.6 × 10 5 4.6×105 4.6 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.3×105 1.3 x 10 5 4.4×103 4.4 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 71.771.7 99.099.0 99.999.9

KSM3803의 내마모성 시험(250g,시험회전수 1000회, 마모율 CS-10)후 항균시험결과Antimicrobial test results after abrasion resistance test (250g, test speed 1000 times, wear rate CS-10) of KSM3803 항목Item 구분division 금속판plate 항균처리 금속판(2%)Antibacterial Metal Plate (2%) 항균처리 금속판(3%)Antibacterial Metal Plate (3%)
대장균


Escherichia coli

대장균수(초기)Coliform bacteria (initial) 3.6×105 3.6 × 10 5 3.6×105 3.6 × 10 5 3.6×105 3.6 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 5.0×105 5.0 × 10 5 5.0×105 5.0 × 10 5 5.0×105 5.0 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.4×105 1.4 x 10 5 5.2×103 5.2 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 72.072.0 99.099.0 99.999.9
화농균


Pyogenic bacteria

화농균수(초기)Purulent bacteria count (initial) 2.8×105 2.8 × 10 5 2.8×105 2.8 × 10 5 2.8×105 2.8 × 10 5
Blank (24hr)배양후Blank (24hr) After Culture 4.7×105 4.7 × 10 5 4.7×105 4.7 × 10 5 4.7×105 4.7 × 10 5 시료(24hr)배양후After incubation of sample (24hr) 1.4×105 1.4 x 10 5 4.5×103 4.5 × 10 3 <10<10 세균감소율(%)Bacterial reduction rate (%) 70.270.2 99.099.0 99.999.9

항균시험 결과로부터 각 염수분무, 내광성, 내마모성 테스트 후의 항균시험결과에서도 본 발명의 실시예에 따른 항균처리가 된 금속판의 경우 항균성능을 유지하고 있는 것을 확인할 수 있었다.From the antibacterial test results, the antibacterial test results after the salt spray, light resistance, and abrasion resistance tests showed that the antimicrobial performance was maintained in the case of the antimicrobial treated metal plate according to the embodiment of the present invention.

이상 설명한 바와 같은 본 발명의 실시예에 따른 금속가구의 항균처리방법은 가구의 금속부분에 항균처리된 도장층을 쉽게 형성시킬 수 있을 뿐만 아니라, 내식성, 내광성, 내마모성이 향상되어 오랜기간동안 항균성능을 유지할 수 있는 효과가 있다.The antimicrobial treatment method of metal furniture according to the embodiment of the present invention as described above can not only easily form the antimicrobial coating layer on the metal part of the furniture, but also improves the corrosion resistance, light resistance, and abrasion resistance. It is effective to maintain.

또한, 본 발명의 실시예에 따른 도장층의 유해물질 함유여부를 확인하기 위해 IEC 62321(2008)의 시험방법으로 친환경성 시험을 하기 하기 표5에 나타내었다. 표5에 나타난 바와 같이 EU RoHS 2 기준에 부합하는 것을 확인할 수 있었다. In addition, in order to confirm whether the coating layer according to an embodiment of the present invention contains a hazardous substance in accordance with the test method of IEC 62321 (2008) is shown in Table 5 below. As shown in Table 5, it was confirmed that the EU RoHS 2 standard.

항목Item 단위unit 기준standard 결과result 시험방법Test Methods PbPb

mg/kg




mg / kg


1000 이하1000 or less 검출안됨Not detected

IEC 62321(2008)
EU RoHS 2 기준



IEC 62321 (2008)
EU RoHS 2 standard

CdCD 100 이하Below 100 검출안됨Not detected HgHg 1000 이하1000 or less 검출안됨Not detected Cr6 + Cr 6 + 1000 이하1000 or less 검출안됨Not detected PBBsPBBs 1000 이하1000 or less 검출안됨Not detected PBDEsPBDEs 1000 이하1000 or less 검출안됨Not detected

이상 첨부된 도면을 참조하여 본 발명의 실시예를 설명하였지만, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자는 본 발명이 그 기술적 사상이나 필수적인 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다.While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand.

그러므로 이상에서 기술한 실시예들은 모든 면에서 예시적인 것이며 한정적이 아닌 것으로 이해해야만 한다. 본 발명의 범위는 상기 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범위 그리고 그 균등 개념으로부터 도출되는 모든 변경 또는 변경된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 한다.
It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention .

Claims (5)

에폭시-폴리에스터계 분체도료 92.5~96.5 중량%, 항균제2.5~4.5 중량%, 자외선 차단제 0.5~1.5 중량% 및 분산제 0.5~1.5 중량%를 포함하는 도료 조성물을 가구의 금속부분 표면에 정전도장하고,
상기 정전도장에 의한 도장층을 230~250℃에서 10~13분 간 열처리하는 것을 특징으로 하는 금속가구의 항균처리 방법.
Epoxy-polyester-based powder coating 92.5 ~ 96.5% by weight, antibacterial 2.5-4.5% by weight, sunscreen 0.5-1.5% by weight and dispersant 0.5-1.5% by weight electrostatic coating on the surface of the metal part of the furniture,
The antibacterial treatment method of metal furniture, characterized in that the coating layer by the electrostatic coating heat treatment for 10 to 13 minutes at 230 ~ 250 ℃.
삭제delete 삭제delete 금속부분의 표면에 정전도장을 하여 열처리된 코팅층을 가지는 금속가구에 있어서,
상기 코팅층은 에폭시-폴리에스터계 분체도료 92.5~96.5 중량%, 항균제 2.5~4.5 중량%, 자외선 차단제 0.5~1.5 중량% 및 분산제 0.5~1.5 중량%를 포함하는 도료 조성물에 의해 형성되며,
상기 열처리는 230~250℃에서 10~13분 간 이루어지는 것을 특징으로 하는 금속가구.
In the metal furniture having a coating layer heat-treated by electrostatic coating on the surface of the metal part,
The coating layer is formed by a coating composition comprising 92.5 to 96.5% by weight of epoxy-polyester powder coating, 2.5 to 4.5% by weight of antibacterial agent, 0.5 to 1.5% by weight of sunscreen and 0.5 to 1.5% by weight of dispersant.
The heat treatment is a metal furniture, characterized in that made for 10 to 13 minutes at 230 ~ 250 ℃.
삭제delete
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102551058B1 (en) * 2023-02-15 2023-07-05 (주) 휴코스 Antibacterial paint composition for painting steel furniture and antibacterial steel furniture coated with the same

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10168346A (en) * 1996-12-13 1998-06-23 Kansai Paint Co Ltd Antimicrobial powder coating
JPH115925A (en) * 1997-06-18 1999-01-12 Kansai Paint Co Ltd Toning powder coating and toning method therefor
KR101207843B1 (en) 2011-12-15 2012-12-04 김용범 The method of treating door's handle to have antibiosis and door's handle of antibiosis treated byit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10168346A (en) * 1996-12-13 1998-06-23 Kansai Paint Co Ltd Antimicrobial powder coating
JPH115925A (en) * 1997-06-18 1999-01-12 Kansai Paint Co Ltd Toning powder coating and toning method therefor
KR101207843B1 (en) 2011-12-15 2012-12-04 김용범 The method of treating door's handle to have antibiosis and door's handle of antibiosis treated byit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102551058B1 (en) * 2023-02-15 2023-07-05 (주) 휴코스 Antibacterial paint composition for painting steel furniture and antibacterial steel furniture coated with the same

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