KR100471635B1 - Paints mixture hardened by uv rays for furniture, painting method using that and furniture coated by that - Google Patents
Paints mixture hardened by uv rays for furniture, painting method using that and furniture coated by that Download PDFInfo
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- KR100471635B1 KR100471635B1 KR1020040065021A KR20040065021A KR100471635B1 KR 100471635 B1 KR100471635 B1 KR 100471635B1 KR 1020040065021 A KR1020040065021 A KR 1020040065021A KR 20040065021 A KR20040065021 A KR 20040065021A KR 100471635 B1 KR100471635 B1 KR 100471635B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
- B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
- B05D3/065—After-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/04—Homopolymers or copolymers of esters
- C08L33/14—Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
- C09D167/06—Unsaturated polyesters having carbon-to-carbon unsaturation
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/47—Levelling agents
Abstract
Description
본 발명은 가격경쟁력이 뛰어나면서도 내마모성과 크랙방지 효과가 현저한 가구용 자외선 경화성 도료 조성물 및 이 도료를 이용한 가구 도장방법, 그리고 이 도료가 도장된 가구에 관한 것으로, 특히 본 발명의 발명자는 도료의 물성을 지배하는 주성분인 올리고머로 가격경쟁력이 뛰어난 불포화폴리에스테르계 수지만을 사용할 경우 성형된 코팅층에 크랙(crack)이 발생하는 문제점을 해결하기 위하여 반복된 실험을 거쳐 역시 올리고머인 우레탄아크릴레이트계 수지를 특정 함량비로 첨가할 경우 크랙이 방지된다는 것을 발견하고 이러한 실험결과로부터 얻어진 도료 조성물, 도장방법, 그리고 가구를 얻게 되었다.The present invention relates to a UV-curable coating composition for furniture and a furniture coating method using the paint, and a furniture coated with the paint, in particular, the inventors of the present invention have excellent physical properties In order to solve the problem of cracking in the molded coating layer when using only unsaturated polyester resin having excellent price competitiveness as the dominant oligomer, the urethane acrylate resin, which is also an oligomer, is identified. It was found that cracking was prevented when added in the content ratio, and the coating composition, coating method, and furniture obtained from these experiment results were obtained.
일반적으로 가구의 표면의 강도를 부여하고 내스크래치성을 향상시키고 표면에 오염된 물질을 쉽게 제거하기 위하여 가구표면에 UV코팅을 하는 기술이 존재하였는데, 가구표면에 UV코팅 하는 것과 관련된 종래의 기술 및 그 문제점은 다음과 같다.In general, there has been a technique of UV coating on the furniture surface in order to give strength of the surface of the furniture, to improve scratch resistance and to easily remove contaminants on the surface. The problem is as follows.
자외선 경화성 도료를 이용한 가구부재와 관련된 종래 기술로는 대한민국 실용신안 등록 제0251884호(2001.10.12) 『가구용 단위부재』가 있다. 상기 등록실용신안은 가구부재에 UV코팅층을 도포·건조하고 여기에 전사층을 형성한 것이다. The prior art related to the furniture member using the ultraviolet curable paint is Republic of Korea Utility Model Registration No. 0251884 (2001.10.12) "Furniture unit member". The utility model is to apply and dry the UV coating layer on the furniture member and to form a transfer layer.
또 실용신안등록 제0276994호(2002.05.20) 『에이비에스 수지 가구패널용 에지몰딩 스트립』이 있는데, 상기 등록실용신안은 가구패널의 테두리를 따라 부착되는 ABS소재의 가구패널용 에지몰딩 스트립에 관한 것으로, 미세요철면이 형성된 ABS스트립 상부에 전사층과 자외선흡수제층을 차례로 코팅한 스트립에 관한 것이다.In addition, Utility Model Registration No. 00276994 (2002.05.20), `` ABS Resin Furniture Panel Edge Molding Strip, '' which is a registered utility model for an edge molding strip for furniture panel of ABS material attached along the edge of the furniture panel. The present invention relates to a strip in which a transfer layer and an ultraviolet absorber layer are sequentially coated on an ABS strip on which an uneven surface is formed.
그러나 상기 실용신안들은 ABS스트립 상부에 코팅된 열전사층 상면에 바로 UV코팅을 하는 구성을 취하였으나, 상기 실용신안의 경우에는 표면의 강도와 내스크래치성을 향상시킬 수 있는 장점이 있으나, 작은 충격 및 시간이 경과함에 따라 표면에 크랙이 생기는 문제점이 있어 실용화 하는데 많은 문제점이 존재하였다. 또한, 상기 실용신안의 경우에는 자외선 경화성 수지층의 성형품질과 관련된 성분비의 특정과는 거리가 멀다.However, the utility models have a configuration of UV coating directly on the upper surface of the thermal transfer layer coated on the ABS strip, but the utility model has the advantage of improving the strength and scratch resistance of the surface, but small impact and As time passes, there is a problem that cracks are generated on the surface, and there are many problems in practical use. Moreover, in the case of the said utility model, it is far from the specification of the component ratio related with the shaping | molding quality of an ultraviolet curable resin layer.
한편 전사지와 관련된 종래기술로는 특허공개 제2004-0020251호(2004.03.09) 『UV 경화성 도료층이 형성된 다기능 열전사지 및 그 제조방법』이 있는데, 상기 공개특허는 내마모성, 내약품성, 내용제성, 내광성 및, 내스크래치성이 우수한 전사지를 제공하기 위한 것으로, 폴리에스테르 아크릴레이트계 수지, 우레탄 아크릴레이트계 수지 등으로부터 선택된 용제로 이루어진 UV경화성 도료 용액 도막층을 갖는 열전사지에 관한 것이다.Meanwhile, the related arts related to transfer papers include Patent Publication No. 2004-0020251 (2004.03.09), `` Multifunctional thermal transfer paper having a UV curable coating layer formed thereon '', and the published patents include wear resistance, chemical resistance, solvent resistance, The present invention relates to a thermal transfer paper having a UV-curable coating solution coating layer made of a solvent selected from polyester acrylate resins, urethane acrylate resins, and the like, to provide a transfer paper having excellent light resistance and scratch resistance.
상기 특허공개의 경우에는 열전사지 표면에 UV경화성 도료층이 코팅되어 바로 가구표면에 코팅시킬 경우 가구 제조공정이 간단해지고, 광택성, 내스크래치성이 향상되는 장점이 있으나, 상기에서 언급한 표면의 크랙이 발생되는 현상을 해결할 수 없는 문제점이 있을 뿐더러, 일반적으로 가구 제조공정에서 이루어지는 상도, 하도 도포 공정이 생략되어 가구표면이 균일하지 못한 문제점이 있다. 또한, 상기 공개특허에는 폴리에스테르 수지와 우레탄아크릴레이트계 수지의 혼합비율로부터 저렴하고 내구성도 우수한 도료층을 제공하는 것과는 무관하다. In the case of the patent publication, the UV-curable coating layer is coated on the surface of the thermal transfer paper, so that the furniture manufacturing process is simplified and the gloss and scratch resistance are improved. There is a problem that can not solve the phenomenon that the crack occurs, and in addition, the upper and lower coating process is generally omitted in the furniture manufacturing process, there is a problem that the furniture surface is not uniform. In addition, the published patent is irrelevant to providing a coating layer having a low cost and excellent durability from a mixing ratio of a polyester resin and a urethane acrylate resin.
또 도료 조성물과 관련된 것으로 특허공개 제1995-0018354호(1995.07.22) 『자외선 경화형 도막 조성물』이 있는데, 상기 공개특허는 합성수지 성형품에 코팅하여 성형품의 미관 및 내구성을 높이기 위한 에폭시 변성 우레탄 아크릴레이트 올리고머를 포함하는 자외선 경화형 도막 조성물에 관한 것이다. In addition, there is a coating composition related to the Patent Publication No. 1995-0018354 (1995.07.22) "Ultraviolet curing type coating composition," which is disclosed in the epoxy resin-modified urethane acrylate oligomer for coating a synthetic resin molded article to enhance the appearance and durability of the molded article It relates to an ultraviolet curable coating film composition comprising a.
그러나 상기 공개특허는 우레탄 아크릴레이트 올리고머를 주재로 한 도료 조성물로서, 가격이 고가인 점을 감안할 때 범용적으로 사용될 수 없는 문제점이 있다.However, the disclosed patent is a coating composition based on the urethane acrylate oligomer, and there is a problem that cannot be used universally in view of the high price.
본 발명은 상기와 같은 종래 UV경화성 도료 조성물, 이를 이용한 전사지 또는 가구부재에서 제기된 문제점을 해결하기 위하여 제안된 것이다.The present invention has been proposed to solve the problems posed by the conventional UV-curable coating composition, transfer paper or furniture member using the same.
이에 본 발명은 올리고머 성분으로 가격 경쟁력이 뛰어난 불포화 폴리에스테르계 수지를 주재료로 하고, 성형 후 크랙이 발생되는 것을 방지하기 위하여 소량의 우레탄 아크릴레이트 수지를 첨가한 자외선 경화성 도료 조성물을 제공하는 것을 목적으로 한다.Accordingly, an object of the present invention is to provide an ultraviolet curable coating composition containing an unsaturated polyester resin having excellent cost competitiveness as an oligomer component and adding a small amount of urethane acrylate resin in order to prevent cracking after molding. do.
또 본 발명은 상기 도료 조성물을 이용하여 가구부재를 도장하는 방법과 가구를 제공하고, 이때 전사지의 부착성을 높이기 위하여 가구부재에 미세 요철부를 형성한 가구부재를 제공하는 것을 목적으로 한다. Another object of the present invention is to provide a method and furniture for painting a furniture member using the coating composition, and at this time, to provide a furniture member having fine concavo-convex portions formed on the furniture member in order to increase the adhesion of the transfer paper.
상기와 같은 목적을 달성하기 위하여 본 발명에 따른 자외선 경화성 도료 조성물은 불포화 폴리에스테르계 수지 45 내지 50중량%와 우레탄아크릴레이트계 수지 8 내지 12중량%로 이루어진 올리고머; 37 내지 43중량%의 모노머; 1 내지 3중량%의 광개시제; 0.5 내지 1.5중량%의 레벨링제를 포함하여 이루어진다.In order to achieve the above object, the ultraviolet curable coating composition according to the present invention comprises an oligomer composed of 45 to 50% by weight of unsaturated polyester resin and 8 to 12% by weight of urethane acrylate resin; 37 to 43 weight percent monomer; 1 to 3 weight percent photoinitiator; 0.5 to 1.5 weight percent leveling agent.
본 발명에 따른 도료 조성물은 라디칼 중합계와 카치온 중합계(Cationic Polymerization System)로 대별되는 자외선 경화성 도료 중 라디칼 중합계에 속하는 것이다.The coating composition according to the present invention belongs to a radical polymerization system among ultraviolet curable paints which are roughly classified into a radical polymerization system and a cationic polymerization system.
자외선 경화성 도료는 도막형성 주요소가 되는 중합성 2중결합을 가진 올리고머(Olygomer)에 반응성 희석제와 광중합 개시제를 가하여 경우에 따라 도막형성 조요소가 되는 개질제, 첨가제(중합금지제, 레벨링제, 소포제 등) 및 안료를 가해서 도료가 형성된다.UV-curable paints are modified by the reactive diluent and the photopolymerization initiator to oligomers having polymerizable double bonds, which are the main elements of film formation, and additives (polymerization inhibitors, leveling agents, defoamers, etc.). ) And a pigment is added to form a paint.
본 발명에서 도료의 물성을 지배하는 요인인 올리고머로 사용된 것은 가격경쟁력이 뛰어난 불포화 폴리에스테르계 수지를 주성분으로 하고, 여기에 상기 불포화 폴리에스테르계 수지만을 사용할 경우 도막 형성 후 크랙(crack)이 발생되는 문제를 해결하기 위하여 내식성, 내후성, 부착성, 및 경도(고점도)가 뛰어난 우레탄아크릴레이트계 수지를 보조성분으로 사용하였다.In the present invention, the oligomer, which is a factor governing the physical properties of the paint, is mainly composed of an unsaturated polyester resin having excellent price competitiveness, and when only the unsaturated polyester resin is used, cracks are formed after the coating film is formed. In order to solve the problems that occur, a urethane acrylate-based resin having excellent corrosion resistance, weather resistance, adhesion, and hardness (high viscosity) was used as an auxiliary component.
전체 도료 조성물 중에서 상기 불포화 폴리에스테르계 수지는 45 내지 50중량%, 바람직하기로는 46 내지 48중량% 첨가되고, 상기 우레탄아크릴레이트계 수지는 8 내지 12중량%, 바람직하기로는 9 내지 11중량% 첨가된다. In the coating composition, the unsaturated polyester resin is added in an amount of 45 to 50% by weight, preferably 46 to 48% by weight, and the urethane acrylate resin is added in an amount of 8 to 12% by weight, preferably 9 to 11% by weight. do.
이러한 올리고머 첨가량의 특정은 본 발명의 발명자에 의한 반복된 실험에 의하여 얻어진 것으로, 저점도 특성을 갖는 폴리에스테르계 수지와 고점도 특성을 갖는 우레탄아크릴레이트계 수지의 특정 배합비로부터 얻어진 특성으로 추측된다.The amount of such oligomer added is obtained by repeated experiments by the inventors of the present invention, which is presumed to be a property obtained from a specific blending ratio of a polyester resin having a low viscosity property and a urethane acrylate resin having a high viscosity property.
본 발명의 도료 조성물에서 상기 모노머는 중합성 올리고머 단독으로는 도료점도가 너무 높기 때문에 사용할 수가 없기 때문에 도료의 점도를 조정하는 반응성 희석제 역할을 하고, 동시에 반응성 희석제 자체도 반응에 참여하여 도막의 일부를 구성하는데, 본 발명의 도료 조성물에서는 37 내지 43중량% 첨가된다.In the coating composition of the present invention, the monomer may serve as a reactive diluent to adjust the viscosity of the paint because the polymerizable oligomer alone cannot be used because the coating viscosity is too high. In the coating composition of the present invention, 37 to 43% by weight is added.
상기 모노머의 예로는 단관능성(예: 2-Ethyl Hexyl Acetate, 2-Hydroxy Ethyl Acrylate), 2관능성(예: 1,3-Butandiol Diacrylate, 1,4-Butandiol Diacrylate, 1,6-Hexandiol Diacrylate), 그리고 3관능성(예: Thrmethylol Propane Triacrylate, Pentaerithriritol Triacrylate)이 있다. Examples of the monomer include monofunctional (eg 2-Ethyl Hexyl Acetate, 2-Hydroxy Ethyl Acrylate), difunctional (eg 1,3-Butandiol Diacrylate, 1,4-Butandiol Diacrylate, 1,6-Hexandiol Diacrylate) And trifunctional (eg Thrmethylol Propane Triacrylate, Pentaerithriritol Triacrylate).
또 상기 광중합 개시제는 자외선을 흡수하여 중합을 개시시키는 성분으로 아세토페논계(Acetophenone - 예: Diethoxy Acetophenoine), 벤지온에스테르계(Benzion Ester - 예: iso-Butyl-benzion-ester) 등이 있고, 본 발명의 도료 조성물에서는 1 내지 3중량% 첨가된다.In addition, the photopolymerization initiator is a component that absorbs ultraviolet light to initiate polymerization, such as acetophenone (Acetophenone-for example Diethoxy Acetophenoine), Benzion ester (ex: iso-Butyl-benzion-ester), etc. In the coating composition of the present invention, 1 to 3% by weight is added.
그 외 첨가제로서는 가구의 품질 중 중요한 요소인 평활성 향상을 위한 레벨링제가 0.5 내지 1.5중량%가 첨가되었다. 상기 레벨링제로는 실리콘 디아크릴레이트계 또는 실리콘 폴리 아크릴레이트계가 사용될 수 있다. 본 발명에서는 상업적으로 구입 가능한 독일의 BYK-Chemie社 제품을 사용하였다.As other additives, 0.5 to 1.5% by weight of a leveling agent for improving smoothness, which is an important factor in furniture quality, was added. As the leveling agent, silicone diacrylate-based or silicone polyacrylate-based may be used. In the present invention, a commercially available German BYK-Chemie company product was used.
필요에 따라 소포제 또는 중합금지제가 기타 첨가제로 사용될 수 있고, 투명색상 외의 색상을 위하여 안료가 첨가될 수 있다.If necessary, an antifoaming agent or a polymerization inhibitor may be used as other additives, and pigments may be added for colors other than the transparent color.
다음으로 본 발명에 따른 가구부재 도장방법은 (a) 가구부재의 준비단계; (b) 상기 가구부재에 열전사지를 본드를 사용하여 부착하는 단계; (c) 상기 열전사지 노출면에 우레탄 도료를 도포하고 건조하는 단계; 및 (d) 상기 우레탄 코팅층 상부에 불포화 폴리에스테르계 수지 45 내지 50중량%와 올리고머인 우레탄아크릴레이트계 수지 8 내지 12중량%로 이루어진 올리고머, 37 내지 43중량%의 모노머, 1 내지 3중량%의 광개시제, 0.5 내지 1.5중량%의 레벨링제를 포함하여 이루어진 자외선 경화성 도료를 도포하고 자외선을 조사하여 건조하는 단계를 포함하여 이루어진다.Next, the furniture member coating method according to the present invention (a) the preparation step of the furniture member; (b) attaching thermal transfer paper to the furniture member using bonds; (c) coating and drying a urethane paint on the exposed surface of the thermal transfer paper; And (d) an oligomer consisting of 45 to 50% by weight of an unsaturated polyester resin on the urethane coating layer and 8 to 12% by weight of an urethane acrylate resin which is an oligomer, 37 to 43% by weight of a monomer, and 1 to 3% by weight. It comprises a step of applying a UV curable paint comprising a photoinitiator, 0.5 to 1.5% by weight of a leveling agent, and irradiated with ultraviolet light to dry.
상기 (b) 공정은 접착제에 의한 접착뿐만 아니라 고온, 고압조건으로 가구부재에 부착하는 것이 가능하다. The step (b) can be attached to the furniture member under high temperature and high pressure conditions as well as adhesion by an adhesive.
본 발명에 따른 가구부재의 도장방법은 도 1에 도시된 바와 같이, 먼저 (a) 합판, 중밀도 섬유판(MDF), 파타클보드, 집성목 등의 소재로 이루어진 가구부재를 준비한다(S10). 도 2에 도시된 바와 같이 상기 가구부재(10)의 노출면에는 샌드블라스팅 공법 등을 이용하여 미세 요철부(11)를 형성함으로써 열전사지(20)의 부착성을 높일 수 있다. As shown in Fig. 1, the coating method of the furniture member according to the present invention first prepares a furniture member made of a material such as (a) plywood, medium density fiberboard (MDF), particleboard, laminated wood (S10). As illustrated in FIG. 2, the adhesion of the thermal transfer paper 20 may be improved by forming the fine concavo-convex portion 11 on the exposed surface of the furniture member 10 using a sand blasting method or the like.
다음으로 (b) 상기 가구부재의 필요 부위에 원목무늬와 같은 각종 문양이 인쇄된 열전사지를 프레스로 가온·가압하여 부착한다(S20). 처리 온도는 일반적으로 140 내지 160℃, 처리 압력은 3.5 내지 4.5kg/㎠, 처리 시간은 100 내지 120초이다.Next, (b) by heating and pressing a heat transfer paper printed with various patterns such as a wooden pattern on the required portion of the furniture member by pressing (S20). The treatment temperature is generally 140 to 160 ° C, the treatment pressure is 3.5 to 4.5 kg / cm 2, and the treatment time is 100 to 120 seconds.
이어서 (c) 상기 열전사지의 노출면에 우레탄 도료를 도포하고 건조한다(S30). 상기 (c)단계는 모두 (c1)(c2)하도2회(S31)(S33)와 (c3)상도 1회(S35)에 걸쳐 도장되어 도장 품질을 높일 수 있는 것이 바람직하다. 각 (c1)(c2)(c3)단계(S31)(S33)(S35)의 건조시간은 온도와 통기성 정도에 따라 변동되는데, 일반적으로 30 내지 40℃에서 5 내지 10시간 정도 소요된다. 상업적으로 우레탄도료는 경도화학공업(주)의 제품번호 GNG-1005를 구입하여 사용할 수 있다.Subsequently (c) a urethane paint is applied to the exposed surface of the thermal transfer paper and dried (S30). Step (c) is preferably all over the coating (c1) (c2) two times (S31) (S33) and (c3) one time (S35) to improve the coating quality. The drying time of each of the steps (c1) (c2) (c3) (S31) (S33) (S35) varies depending on the degree of temperature and breathability, and generally takes about 5 to 10 hours at 30 to 40 ° C. Commercially, urethane paint can be used by purchasing the product number GNG-1005 of Hard Chemical Co., Ltd.
마지막으로 (d) 상기 우레탄 코팅층 상부에 본 발명에 따른 자외선 경화성 도료를 도포하고 자외선 처리하여 건조한다. 자외선 램프로는 고온수은등이나 메탈하이드라이드 등이 사용될 수 있다. Finally (d) the ultraviolet curable coating according to the present invention is applied to the urethane coating layer and dried by ultraviolet treatment. As the UV lamp, a high temperature mercury lamp or a metal hydride may be used.
이상과 같은 본 발명의 가구부재 도장방법에 의하여 제조된 가구는 도 2에 도시된 바와 같이, 가구부재층(10); 열전사지층(20); 우레탄 도료로 하도1회(31), 하도2회(33) 및 상도1회(35) 순서로 도포된 우레탄 도료층(30); 및 불포화 폴리에스테르계 수지 45 내지 50중량%와 올리고머인 우레탄아크릴레이트계 수지 8 내지 12중량%로 이루어진 올리고머; 37 내지 43중량%의 모노머; 1 내지 3중량%의 광개시제; 0.5 내지 1.5중량%의 레벨링제를 포함하여 이루어진 도료로 도포된 자외선 경화성 도료층(40)이 차례로 적층된 층상 구조를 갖는다. 또 가구부재(10)와 외면에는 전사지(20)의 부착성 향상을 위한 미세 요철부(11)가 형성되어 있다.Furniture manufactured by the furniture member coating method of the present invention as shown in Figure 2, the furniture member layer 10; Thermal transfer layer 20; A urethane paint layer 30 coated with a urethane paint in the order of one coat (31), two coats (33), and one coat (35); And oligomer consisting of 45 to 50% by weight of unsaturated polyester resin and 8 to 12% by weight of urethane acrylate resin which is an oligomer; 37 to 43 weight percent monomer; 1 to 3 weight percent photoinitiator; The ultraviolet curable coating layer 40 coated with the coating material containing 0.5 to 1.5 weight% of leveling agents has the layered structure laminated one by one. In addition, the furniture member 10 and the outer surface is formed with a fine uneven portion 11 for improving the adhesion of the transfer paper 20.
도 2는 가구의 적층구조를 명확히 파악하기 위하여 전사지와 도료의 두께를 과장되게 표현하였다.Figure 2 is exaggerated to express the thickness of the transfer paper and the paint in order to clearly understand the laminated structure of the furniture.
이상에서 살펴본 바와 같이 본 발명에 따른 가구용 자외선 경화성 도료 조성물 및 이 도료를 이용한 가구부재 도장방법, 그리고 이 도료가 도장된 가구는 기본적으로 도료 조성물 중 올리고머 성분으로 가격 경쟁력이 뛰어난 불포화 폴리에스테르계 수지를 주재료로 하고, 성형 후 크랙이 발생되는 것을 방지하기 위하여 소량의 우레탄 아크릴레이트 수지를 부재료로 사용하여 반복된 실험을 거쳐 최상의 품질을 얻을 수 있도록 최적의 배합비를 갖는 도료 조성물를 발견하였고, 이러한 도료조성물을 사용할 경우 가격과 품질 면에서 모두 만족스러워 뛰어난 시장 경졍력을 갖는 가구제품을 생산할 수 있다.As described above, the ultraviolet curable coating composition for furniture according to the present invention, the method for painting the furniture member using the paint, and the furniture coated with the paint are basically an unsaturated polyester resin having excellent price competitiveness as an oligomer component in the coating composition. As a main material, in order to prevent cracking after molding, a small amount of urethane acrylate resin was used as a subsidiary material, and a coating composition having an optimum blending ratio was found to obtain the best quality through repeated experiments. When used, it is satisfactory both in price and quality to produce furniture products with excellent market experience.
도 1은 본 발명에 따른 가구 도장방법의 순서를 나타낸 블록도,1 is a block diagram showing the procedure of furniture painting method according to the present invention,
도 2는 본 발명에 따라 도장된 가구의 적층구조를 나타낸 단면도이다.Figure 2 is a cross-sectional view showing a laminated structure of the furniture painted in accordance with the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10: 가구부재층 20: 전사지층10: furniture member layer 20: transfer layer
30: 우레탄 도료 도장층 40: 자외선 경화성 도료 도장층30: urethane coating layer 40: UV curable coating layer
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921523A (en) * | 2010-08-20 | 2010-12-22 | 张学毅 | Release-free laser electrochemical aluminum hot-stamping foil imaging layer coating and preparation method thereof |
| KR101410384B1 (en) * | 2012-06-20 | 2014-06-20 | 건설화학공업 주식회사 | A composition for promoting sticking of UV paint to low pressure melamine material |
| CN108745833A (en) * | 2018-04-28 | 2018-11-06 | 佛山市莱威化工科技有限公司 | A kind of general UV ordor removings coating construction process in sanitary ware industry bottom surface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921523A (en) * | 2010-08-20 | 2010-12-22 | 张学毅 | Release-free laser electrochemical aluminum hot-stamping foil imaging layer coating and preparation method thereof |
| CN101921523B (en) * | 2010-08-20 | 2014-04-16 | 张学毅 | Release-free laser electrochemical aluminum hot-stamping foil imaging layer coating and preparation method thereof |
| KR101410384B1 (en) * | 2012-06-20 | 2014-06-20 | 건설화학공업 주식회사 | A composition for promoting sticking of UV paint to low pressure melamine material |
| CN108745833A (en) * | 2018-04-28 | 2018-11-06 | 佛山市莱威化工科技有限公司 | A kind of general UV ordor removings coating construction process in sanitary ware industry bottom surface |
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