KR101271981B1 - Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method - Google Patents
Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method Download PDFInfo
- Publication number
- KR101271981B1 KR101271981B1 KR1020110144122A KR20110144122A KR101271981B1 KR 101271981 B1 KR101271981 B1 KR 101271981B1 KR 1020110144122 A KR1020110144122 A KR 1020110144122A KR 20110144122 A KR20110144122 A KR 20110144122A KR 101271981 B1 KR101271981 B1 KR 101271981B1
- Authority
- KR
- South Korea
- Prior art keywords
- steel sheet
- coating
- coating film
- hardening
- acrylate
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
-
- 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
- B05D1/00—Processes for applying liquids or other fluent materials
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, 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
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/22—Electroplating: Baths therefor from solutions of zinc
Abstract
Description
본 발명은 자외선 경화 코팅을 이용한 텍스쳐(texture) 강판의 제조방법 및 이 제조방법에 의해 제조된 텍스쳐 강판에 관한 것이다.
The present invention relates to a method for producing a textured steel sheet using an ultraviolet curing coating and to a textured steel sheet produced by the manufacturing method.
주로 가전제품에 적용되는 텍스쳐(texture) 강판은 강판 표면에 주름이나 표면질감을 갖도록 표면처리를 한 강판이다.
A texture steel sheet mainly applied to home appliances is a steel sheet having a surface treatment so as to have wrinkles or surface texture on the surface of the steel sheet.
상기 텍스쳐 강판을 제조하기 위한 방법으로는, 용액이나 도료 내에 입자 또는 첨가제를 첨가한 후, 열경화 방식 등에 의해 강판 표면에 주름을 주거나 표면조도를 달리하여 제조되는 것이 일반적이었다.As a method for producing the textured steel sheet, it was generally prepared by adding particles or additives to a solution or paint, and then corrugating the surface of the steel sheet by a thermosetting method or changing the surface roughness.
하지만, 상기와 같이 입자 또는 첨가제를 첨가하여 제조하는 경우, 많은 양을 첨가해야 하므로 제조되는 강판의 물성이 불리해지고, 코팅작업시 비중이 큰 입자들이 용액 내부에 가라앉는 경우가 생겨 작업성이 취약해지는 단점이 있다.
However, in the case of manufacturing by adding particles or additives as described above, the physical properties of the steel sheet to be manufactured is disadvantageous because a large amount must be added, and the workability is weak due to the large specific gravity particles sinking in the solution during coating work. There is a disadvantage in that.
반면, 고분자 조성물이나 희석제 등을 혼합하고, 자외선 조사에 의해 코팅 도막을 형성하는 자외선 경화 코팅(UV radiation cured coating) 방식은 기존의 경화 방식과는 다르게, 경화 반응을 자외선에 의존하도록 하고 경화 반응의 속도를 수 초 내지 수 십초 정도로 제어한 것으로 기존의 열경화 방식과는 비교하기 힘들 정도로 빠르며, 이에 의한 코팅 피막의 물성은 고광택성 및 경도 내약품성 등을 가진다. 따라서 기존의 입자나 첨가제를 이용한 코팅보다 우수하고, 이로 인해서 여러 분야의 잠재 응용성을 가지고 있다.On the other hand, the UV radiation cured coating method of mixing a polymer composition, a diluent, and the like and forming a coating film by irradiation with ultraviolet rays makes the curing reaction dependent on ultraviolet rays and prevents the curing reaction. The speed is controlled to a few seconds to several tens of seconds, which is difficult to compare with the conventional thermosetting method, and the physical properties of the coating film thereby have high glossiness and hardness chemical resistance. Therefore, it is superior to the coating using existing particles or additives, and thus has potential applications in various fields.
또한, 용제를 사용하지 않으므로 환경 오염 문제를 줄일 수 있으며, 기존의 용매 휘발형의 도장계나 열에 의한 화학 반응에 기초한 도장계, 정전이나 전착 도장계와 같은 다른 기타 도장 방법에 비해 가열 과정이 필요 없어 에너지 소모도 적다는 장점이 있다.
In addition, the use of solvents can reduce the problem of environmental pollution, and does not require a heating process compared to other coating methods such as a solvent-based coating system based on a solvent or a chemical reaction based on heat, or an electrostatic or electrodeposition coating system. It also has the advantage of low energy consumption.
이와 같이, 자외선 경화 코팅 방법은 열경화 방식에 비해 저장 안정성이 우수하고, 상온에서 수초 내에 경화가 가능하여 생산성 면에서도 우수하며, 성능면에서도 내마모성이 우수하고, 내수성, 내용제성, 내후성, 내열성 등이 우수한 장점이 있다.
As described above, the UV curing coating method has better storage stability than the thermosetting method, and can be cured in a few seconds at room temperature, so it is also excellent in productivity, excellent in wear resistance in terms of performance, water resistance, solvent resistance, weather resistance, heat resistance, etc. This has an excellent advantage.
본 발명은 자외선 경화 코팅 방법을 이용하여 강판 표면에 주름이나 표면질감을 갖는 텍스쳐 강판의 제조방법에 관한 것으로, 단파장 및 장파장의 듀얼(dual) 자외선 경화 코팅을 이용한 텍스쳐 강판의 제조방법 및 이 제조방법에 의해 제조된 텍스쳐 강판을 제공한다.
The present invention relates to a method for producing a textured steel sheet having wrinkles or surface texture on the surface of the steel sheet by using an ultraviolet curing coating method, and a method of manufacturing a textured steel sheet using dual ultraviolet curing coatings having short wavelengths and long wavelengths, and a method of manufacturing the same. It provides a textured steel sheet produced by.
본 발명의 일 측면은 아연도금강판 또는 냉연강판에 자외선 경화 용액을 코팅하여 1 내지 30 μm 두께의 도막을 형성하는 단계; 상기 도막에 100 내지 250 nm의 단파장 자외선을 조사하여 1차 경화하는 단계; 및 상기 1차 경화된 도막에 250 내지 400 nm의 장파장 자외선을 조사하여 2차 경화하는 단계를 포함하는 것을 특징으로 하는 텍스쳐 강판의 제조방법을 제공하는 것이다.
One aspect of the present invention is to form a coating film having a thickness of 1 to 30 μm by coating an ultraviolet curing solution on a galvanized steel sheet or a cold rolled steel sheet; Irradiating the coating film with short wavelength ultraviolet rays of 100 to 250 nm to cure the film firstly; And it is to provide a method for producing a textured steel sheet comprising the step of secondary curing by irradiating a 250-400 nm long wavelength ultraviolet rays to the primary cured coating film.
본 발명의 다른 일 측면은 상기 제조방법에 의해 제조된 균일한 주름을 갖는 텍스쳐 강판을 제공하는 것이다.
Another aspect of the present invention to provide a textured steel sheet having a uniform wrinkles produced by the manufacturing method.
본 발명에 따른 단파장 및 장파장의 듀얼(dual) 자외선 경화 코팅을 이용하여 텍스쳐 강판을 제조하는 경우, 기존 단일 파장에서 자외선 경화 코팅을 수행하여 제조한 강판에 비해 표면상에 주름을 균일하게 형성시킬 수 있다. 또한, 상기 텍스쳐 강판에 가공성 및 표면 부착성이 우수한 특성을 갖도록 할 수 있다.
When manufacturing a textured steel sheet using a dual-ultraviolet curing coating of short wavelength and long wavelength according to the present invention, wrinkles may be uniformly formed on the surface of the steel sheet manufactured by performing UV-curing coating at a single wavelength. have. In addition, the texture steel sheet may have excellent properties of workability and surface adhesion.
도 1은 본 발명의 제조방법에 의해 제조되는 텍스쳐 강판의 표면 형상을 나타낸 것이다.Figure 1 shows the surface shape of the textured steel sheet produced by the manufacturing method of the present invention.
본 발명은 기존 열경화 방식을 이용하여 제조하였던 텍스쳐 강판의 문제점을 보완하기 위해 안출된 것으로, 열경화 방식에 비해 저장 안정성 및 생산성이 우수한 자외선 경화 방식을 이용하여 균일한 주름을 갖고, 내수성 및 내열성이 우수한 텍스쳐 강판의 제조방법을 제공하는 것을 목적으로 한다.
The present invention was devised to supplement the problems of the texture steel sheet manufactured using the conventional thermal curing method, has a uniform wrinkles by using an ultraviolet curing method excellent in storage stability and productivity compared to the thermal curing method, water resistance and heat resistance It is an object to provide a method for producing this excellent textured steel sheet.
본 발명에서 이용하는 자외선 경화 코팅 방식은 단시간에 코팅시킬 수 있어 생산성이 뛰어나고, 용제를 사용하지 않으므로 환경 오염 문제를 줄일 수 있으며, 기존의 용매 휘발형의 도장계나 열에 의한 화학 반응에 기초한 도장계, 정전이나 전착 도장계와 같은 다른 기타 도장 방법에 비해 가열 과정이 필요없어 에너지 소모도 적은 코팅 방법이다.
UV curing coating method used in the present invention can be coated in a short time, excellent in productivity, and can reduce the environmental pollution problem by not using a solvent, paint system based on conventional solvent volatilization or chemical reaction by heat, electrostatic Compared with other coating methods, such as electrodeposition coating systems, no heating process is required, which results in less energy consumption.
이하, 본 발명을 보다 상세히 설명한다.
Hereinafter, the present invention will be described in more detail.
본 발명은 자외선 경화 용액을 가전제품 등에 이용되는 아연도금강판 또는 냉연강판에 코팅하여 도막을 형성하고, 자외선 경화 방식을 이용하여 도막을 경화시켜 상기 강판 표면을 처리한 텍스쳐 강판의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a textured steel sheet by coating an ultraviolet curing solution on a galvanized steel sheet or a cold rolled steel sheet used in home appliances, etc., and curing the coating film using an ultraviolet curing method. .
보다 구체적으로 상기 텍스쳐 강판은 아연도금강판 또는 냉연강판에 자외선 경화 용액을 코팅하여 1 내지 30 μm 두께의 도막을 형성한 후, 상기 도막에 100 내지 250 nm의 단파장 자외선을 조사하여 상기 도막을 1차 경화하는 단계 및 상기 1차 경화된 도막에 250 내지 400 nm의 장파장 자외선을 조사하여 2차 경화하는 단계를 포함하여 제조할 수 있다.
More specifically, the texture steel sheet is formed by coating an ultraviolet curing solution on a galvanized steel sheet or a cold rolled steel sheet to form a coating film having a thickness of 1 to 30 μm, and then irradiating the coating film with short wavelength ultraviolet rays of 100 to 250 nm to primary the coating film. It may be prepared, including the step of curing and the second step by irradiating a 250-400 nm long wavelength ultraviolet rays to the primary cured coating film.
상기 강판 표면을 코팅하는데 이용되는 자외선 경화 용액은 상기 강판을 코팅할 수 있는 어떠한 용액도 가능하나, 철재와의 친화성이 우수하여 강판과 피막의 밀착성이 우수하고 박리현상이 발생하지 않는 용액을 이용하는 것이 바람직하다. 다만, 내식성 및 부식성이 우수한 강판을 제조하기 위해서는 하지 표면 처리를 한 후 상기 자외선 경화 용액을 코팅하는 것이 더 바람직하다.
The UV curing solution used to coat the surface of the steel sheet may be any solution capable of coating the steel sheet, but using a solution having excellent affinity with steel and excellent adhesion between the steel sheet and the film and no peeling phenomenon. It is preferable. However, in order to manufacture a steel sheet excellent in corrosion resistance and corrosion resistance, it is more preferable to coat the ultraviolet curing solution after the surface treatment.
본 발명에서 사용된 자외선 경화 용액은 본 출원인의 한국등록특허 제0925632호에 기재된 강판 코팅용 자외선 경화성 조성물을 사용한 것이다.The ultraviolet curing solution used in the present invention uses the ultraviolet curable composition for coating the steel sheet described in Korean Patent No. 0925632 of the applicant.
구체적으로, 40 내지 60 중량%의 에폭시 아크릴레이트, 우레탄 아크릴레이트, 및 프탈레이트 아크릴레이트로 이루어진 군으로부터 2종 이상 선택되는 아크릴레이트 올리고머, 5 내지 35 중량%의 반응성 아크릴 모노머, 3 내지 10 중량%의 광개시제, 0.5 내지 29 중량%의 부착 증진제 및 0.5 내지 3 중량%의 기타 첨가제를 포함하여 이루어지는 자외선 경화성 조성물을 사용하는 것이 바람직하다.Specifically, the acrylate oligomer selected from the group consisting of 40 to 60% by weight of epoxy acrylate, urethane acrylate, and phthalate acrylate, 5 to 35% by weight of reactive acrylic monomer, 3 to 10% by weight of Preference is given to using ultraviolet curable compositions comprising a photoinitiator, 0.5 to 29% by weight of adhesion promoter and 0.5 to 3% by weight of other additives.
보다 구체적으로, 상기 에폭시 아크릴레이트는 비스페놀 A 변성 에폭시 아크릴레이트인 것이 바람직하며, 우레탄 아크릴레이트는 반응기가 적어도 10개 이상인 것이 바람직하다.More specifically, the epoxy acrylate is preferably bisphenol A modified epoxy acrylate, urethane acrylate is preferably at least 10 reactors.
상기 반응성 아크릴 모노머는 이소보닐 아크릴레이트(isobonyl acrylate; IBOA), 이소보닐 메타크릴레이트(isobonyl methacrylate), 테트라히드로퓨릴 아크릴레이트(tetrahydrofuryl acrylate; THFA), 2-페녹시에틸 아크릴레이트(2-phenoxyethyl acrylate), 스테아릴 아크릴레이트(stearyl acrylate), 카프로락톤 아크릴레이트(caprolactone acrylate), 트리프로필렌글리콜 디아크릴레이트(tripropyleneglycol diacrylate; TPGDA), 1,6-헥산디올 디아크릴레이트(1,6-hexane diol diacrylate; HDDA), 트리메틸올프로판 트리아크릴레이트(trimethylolpropane triacrylate; TMPTA), 펜타에리트리톨 트리아크릴레이트(pentaerythritol triacrylate) 및 에톡시레이티드 트리메틸올 프로판 트리아크릴레이트(ethoxylated trimethylol propanetriacrylate)로 이루어진 군으로부터 1종 이상 선택하여 단독 또는 혼합하여 사용할 수 있으며, 특히 이소보닐 아크릴레이트(isobonyl acrylate; IBOA), 트리메틸올프로판 트리아크릴레이트(trimethylolpropane triacrylate; TMPTA) 또는 이들의 혼합물인 것이 바람직하다.The reactive acrylic monomer is isobonyl acrylate (IBOA), isobonyl methacrylate (isobonyl methacrylate), tetrahydrofuryl acrylate (THFA), 2-phenoxyethyl acrylate (2-phenoxyethyl acrylate ), Stearyl acrylate, caprolactone acrylate, tripropyleneglycol diacrylate (TPGDA), 1,6-hexanediol diacrylate (1,6-hexane diol diacrylate) At least one from the group consisting of HDDA), trimethylolpropane triacrylate (TMPTA), pentaerythritol triacrylate and ethoxylated trimethylol propanetriacrylate; Can be used alone or in combination, in particular isobornyl acrylate Bit (isobonyl acrylate; IBOA), trimethylolpropane triacrylate; preferably (trimethylolpropane triacrylate TMPTA) or a mixture thereof.
상기 부착 증진제는 인산계 아크릴화합물 및 분자량 10000 내지 20000의 아크릴 레진 중 적어도 하나를 포함하는 것이 바람직하다.The adhesion promoter may preferably include at least one of a phosphate acrylic compound and an acrylic resin having a molecular weight of 10000 to 20000.
상기 광개시제는 벤조페논(Benzophenone), 1-하이드록시 사이클로 헥실페닐키톤(1-Hydroxy cyclo hexyl phenyl ketone), 2-하이드록시-2-메틸-1-페닐 프로판-1-케톤(2-Hydroxy-2-methyl-1-phenyl propane-1-ketone), 2-클로로티옥산톤(2-Chlorothioxantone) 및 2-이소프로필티옥산톤(2-Isopropylthioxantone)계 화합물로 이루어진 군으로부터 1종 이상 선택하여 단독 또는 혼합하여 사용할 수 있다.The photoinitiator is benzophenone, 1-hydroxy cyclohexyl phenyl ketone, 2-hydroxy-2-methyl-1-phenyl propane-1-ketone (2-Hydroxy-2) -Methyl-1-phenyl propane-1-ketone), 2-Chlorothioxantone and 2-Isopropylthioxantone-based compound, at least one selected from the group consisting of It can be mixed and used.
또한 본 발명의 상기 자외선 경화성 조성물은 상기 기타 첨가제로 소포제 및 레벨링제를 포함한다.In addition, the ultraviolet curable composition of the present invention includes an antifoaming agent and a leveling agent as the other additives.
상기 강판 코팅용 자외선 경화성 조성물의 조성 및 제조에 관한 보다 자세한 내용은 상기 한국등록특허 제0925632호를 참조한다.
For more details on the composition and preparation of the UV-curable composition for coating the steel sheet, refer to Korean Patent No. 0925632.
상기 자외선 경화 용액을 이용한 강판의 도막 형성 방식은 도막을 형성시킬 수 있는 어떠한 방식도 가능하나, 구체적으로 롤 코팅, 스프레이 코팅 또는 커튼 코팅 등의 기존의 일반적인 코팅 방식을 사용할 수 있다. 단지 코팅 방식에 따라 적절한 수지의 점도를 조정하여 코팅 도막의 형성을 용이하게 하여야 한다.The coating film forming method of the steel sheet using the ultraviolet curing solution may be any method for forming a coating film, specifically, conventional coating methods such as roll coating, spray coating or curtain coating may be used. Only by adjusting the viscosity of the appropriate resin in accordance with the coating method should facilitate the formation of the coating film.
또한, 상기 용액을 이용하여 강판에 도막을 형성할 경우, 도막의 두께는 특별히 한정되지는 않으나, 바람직하게는 1 내지 30 μm 두께로 형성시키는 것이 좋다. 이는, 이후의 자외선 조사시 도막을 효과적으로 경화시키기 위한 것으로서, 도막의 두께를 1 이하로 형성시킬 경우 강판 표면 상에 주름을 형성시키기 어려우며, 반면 두께를 30 초과하여 형성시킬 경우 주름 형성이나 제품의 물성 측면에서는 문제가 없으나, 도막의 두께를 과잉 형성할 경우 원가가 상승하는 단점이 발생한다. 따라서, 도막의 두께는 상기 범위 내에서 형성시키는 것이 바람직할 것이다.
In addition, when forming a coating film in a steel plate using the said solution, although the thickness of a coating film is not specifically limited, Preferably, it is good to form in 1-30 micrometers thickness. This is to effectively cure the coating film in the subsequent UV irradiation, it is difficult to form a wrinkle on the surface of the steel sheet when the thickness of the coating film is formed to 1 or less, whereas when forming a thickness of more than 30 wrinkles or physical properties of the product There is no problem in the aspect, but if the thickness of the coating film is excessively formed, there is a disadvantage that the cost increases. Therefore, it is preferable to form the thickness of a coating film in the said range.
이와 같이, 아연도금강판 또는 냉연강판을 자외선 경화 용액으로 도막을 형성시킨 후, 상기 도막이 형성된 강판에 자외선 조사를 수행한다. 이때, 자외선 조사는 단파장의 자외선 조사 후 장파장의 자외선 조사를 수행하는 것이 바람직하다.As described above, after the galvanized steel sheet or the cold rolled steel sheet is formed with an ultraviolet curing solution, UV coating is performed on the steel sheet on which the coating film is formed. In this case, the ultraviolet irradiation is preferably performed after the ultraviolet irradiation of the short wavelength to perform the ultraviolet irradiation of the long wavelength.
보다 구체적으로, 단파장의 자외선 조사는 100 내지 250 nm로 1 내지 2 초로 조사하며, 장파단의 자외선 조사는 250 내지 400 nm로 1 내지 2 초로 조사한다.More specifically, the ultraviolet radiation of the short wavelength is irradiated at 100 to 250 nm for 1 to 2 seconds, and the ultraviolet radiation of the long wave is irradiated at 250 to 400 nm for 1 to 2 seconds.
먼저, 단파장의 자외선 조사를 할 경우, 강판에 형성된 도막의 표면만 경화되며 도막 내부는 경화 또는 건조 현상이 발생되지 않는다. 상기 단파장 자외선의 조사로 도막의 표면이 경화되면서 수축에 의해 표면에만 주름이 발생하게 된다.First, when irradiating with short wavelength ultraviolet rays, only the surface of the coating film formed on the steel sheet is cured, and curing or drying does not occur inside the coating film. As the surface of the coating film is cured by the irradiation of the short wavelength ultraviolet rays, wrinkles are generated only on the surface by shrinkage.
이후, 장파장의 자외선 조사를 할 경우, 강판에 형성된 도막의 내부가 경화 및 건조된다. 이때, 도막 내부에 수축이 발생되면서 강판 전체에 균일한 주름이 생성되게 된다.Subsequently, in the case of long wavelength ultraviolet irradiation, the inside of the coating film formed on the steel sheet is cured and dried. At this time, as the shrinkage occurs inside the coating film, uniform wrinkles are generated throughout the steel sheet.
상술한 바와 같이, 본 발명은 자외선 조사를 파장단위로 나눠 조사함으로써 강판에 형성된 도막의 표면과 도막 내부의 경화 및 수축 발생 시간에 차이를 갖도록 하여 표면 외관에 균일한 주름을 갖는 강판을 제조할 수 있다.
As described above, the present invention can produce a steel sheet having a uniform wrinkle on the surface appearance by having a difference in the surface of the coating film formed on the steel sheet and the time of occurrence of curing and shrinkage inside the coating film by irradiating the ultraviolet irradiation by the wavelength unit have.
상기와 같이 도막을 형성시킨 강판에 자외선 조사를 수행할 경우, 예를 들면 자외선 경화기에 넣은 후 자외선 조사를 수행하게 되므로 강판을 자외선 경화기에 옮기는 과정에서 오염 물질에의 노출을 방지하여야 하며, 이를 위해 형성된 도막 위에 보호 필름을 부착할 수 있다. 상기 보호 필름은 자외선 조사 직전에 제거할 수 있다. 만일 형성된 도막이 외부 오염에 노출되었을 경우에는 알코올과 같은 용제로 닦아낸 후 자외선 조사를 수행하는 것이 바람직하다.
When UV irradiation is performed on the steel sheet formed with the coating film as described above, the UV irradiation is performed after being put into an ultraviolet curing machine, for example, so that exposure to contaminants in the process of transferring the steel sheet to the UV curing machine should be prevented. A protective film can be affixed on the formed coating film. The protective film can be removed immediately before ultraviolet irradiation. If the formed coating film is exposed to external contamination, it is preferable to wipe off with a solvent such as alcohol and then perform ultraviolet irradiation.
자외선 경화 용액을 코팅하여 형성시킨 도막에 자외선 조사를 수행하게 되면, 광개시제로부터 라디칼(radical)이 형성되고, 생성된 라디칼이 올리고머와 모노머의 이중결합을 공격하여 3차원 망상구조의 가교 결합을 형성하면서 경화된다. 이러한 자외선 경화용액은 다른 용액 또는 도료들에 비해 단시간에 경화되어 코팅되기 때문에 공정에 소요되는 시간이 짧고, 생산성이 우수하며, 휘발성 용제를 사용하지 않기 때문에 환경 오염이 적다는 장점이 있다.
When UV irradiation is performed on the coating film formed by coating the UV curing solution, radicals are formed from the photoinitiator, and the generated radicals attack the double bonds of the oligomer and the monomer to form a three-dimensional network crosslink. Cures. Since the UV curing solution is cured and coated in a short time compared to other solutions or paints, the time required for the process is short, productivity is excellent, and there is little environmental pollution because it does not use a volatile solvent.
또한, 상술한 제조방법을 텍스쳐 강판 제조에 적용할 경우, 가공성 및 표면 부착성이 우수하고, 표면 주름이 균일한 텍스쳐 강판을 제조할 수 있다.
In addition, when the above-described manufacturing method is applied to the production of a textured steel sheet, it is possible to produce a textured steel sheet having excellent workability and surface adhesion, and having uniform surface wrinkles.
이하, 구체적인 실시예를 통해 본 발명을 보다 상세하게 설명한다.
Hereinafter, the present invention will be described in more detail with reference to specific examples.
실시예Example 1. One. 텍스쳐texture (( texturetexture ) 강판 제조A) steel plate manufacturing
아연도금강판 위에 자외선 경화 용액을 롤 코팅을 이용하여 코팅하여 5 내지 10 μm 두께의 도막을 형성한 후, 상기 코팅된 강판을 자외선 경화기에 옮겼다.After the UV curing solution was coated on the galvanized steel sheet using a roll coating to form a coating film having a thickness of 5 to 10 μm, the coated steel sheet was transferred to an ultraviolet curing machine.
이때, 상기 자외선 경화 용액은 한국등록특허 제0925632호에 기재된 강판 코팅용 자외선 경화성 조성물을 활용하였으며, 구체적으로 34 중량%의 에폭시아크릴레이트, 5 중량%의 우레탄아크릴레이트, 16 중량%의 프탈레이트아크릴레이트, 33.3 중량%의 IBOA, 8 중량%의 광개시제(2-하이드록시-2-메틸-1-페닐 프로판-1-케톤), 3 중량%의 아크릴 포스페이트, 0.2 중량%의 리벨링제 및 0.5 중량%의 소포제로 제조된 자외선 경화성 조성물을 이용하였다.At this time, the UV curing solution was utilized for the UV curable composition for coating the steel sheet described in Korea Patent No. 0925632, specifically 34% by weight of epoxy acrylate, 5% by weight of urethane acrylate, 16% by weight of Phthalate acrylate, 33.3 wt% IBOA, 8 wt% photoinitiator (2-hydroxy-2-methyl-1-phenyl propane-1-ketone), 3 wt% acrylic phosphate, 0.2 wt% revelling agent and 0.5 An ultraviolet curable composition prepared with a weight percent antifoam was used.
이후, 100 내지 250 nm의 단파장 자외선 램프, 특히 126, 146, 172, 185 nm의 특정 파장을 갖는 단파장 자외선 램프를 이용하여 1000 mj의 조사량으로 조사하여 1차적으로 표면을 경화시킨 후, 250 내지 400 nm의 장파장 자외선 램프, 특히 320 내지 390 nm의 특정 파장을 갖는 장파장 자외선 램프를 이용하여 1000 mj의 조사량으로 조사하여 2차적으로 도막 내부를 경화시켰다.
Thereafter, 100 to 250 nm short-wave UV lamps, in particular using a short wavelength UV lamp having a specific wavelength of 126, 146, 172, 185 nm irradiated at a dose of 1000 mj to harden the surface first, then 250 to 400 The inside of the coating film was cured secondly by irradiating with an irradiation amount of 1000 mj using a long wavelength ultraviolet lamp of nm, especially a long wavelength ultraviolet lamp having a specific wavelength of 320 to 390 nm.
자외선 조사 결과, 상기 단파장 조사로 도막의 표면에만 경화가 발생하여 표면상에 주름이 생성하였으며, 이후의 장파장 조사에 의해 도막 내부가 경화되면서 강판 표면에 균일한 주름이 생성되었다. 즉, 도 1에 나타낸 바와 같이 1차 단파장 및 2차 장파장의 도막 경화에 의해 균일한 주름 무늬가 형성된 텍스쳐 강판이 구현되었다.
As a result of ultraviolet irradiation, hardening occurred only on the surface of the coating film by the short wavelength irradiation, and wrinkles were formed on the surface, and uniform wrinkles were formed on the surface of the steel sheet as the inside of the coating film was cured by subsequent long wavelength irradiation. That is, as shown in FIG. 1, a textured steel sheet having a uniform wrinkle pattern is realized by coating hardening of the first short wavelength and the second long wavelength.
실시예Example 2. 2. 텍스쳐texture 강판의 광택 Polished steel plate 소광Quenching 효과 측정 Effect measurement
실시예 1에서 제조한 텍스쳐 강판에 대해 표면상의 광택 소광 효과를 측정하였다. 이때, 비교분석을 위한 종래 UV 강판은 한국등록특허 제0925632호에 기재된 UV 도장강판을 이용하였다.The gloss quenching effect on the surface of the textured steel sheet produced in Example 1 was measured. At this time, the conventional UV steel sheet for comparative analysis was used UV coated steel sheet described in Korea Patent No. 0925632.
보다 구체적으로, 광택기(glossmeter, BYK-Gardner 사)를 이용하여 측정하였는데, 광택기는 유리의 반사율을 100으로 하였을 때, 이를 기준으로 상대적인 값으로 나타내어진다. 본 실시예에서는 실시예 1의 텍스쳐 강판 위에 광택기를 설치하고, 60도 각도에서 빛을 조사하여 반사되는 빛의 양을 측정하여 수치(반사율)로 계산하였다. 이때, 상기 수치가 높을수록 고광택이며, 소광효과가 나타나게 되면 광택은 낮아지게 된다.
More specifically, it was measured using a gloss meter (glossmeter, BYK-Gardner), the gloss is represented as a relative value based on the reflectance of the glass to 100. In this example, a polisher was installed on the texture steel plate of Example 1, and the amount of reflected light was measured by irradiating light at an angle of 60 degrees and calculated as a numerical value (reflectance). At this time, the higher the value, the higher the gloss, the gloss is lowered when the matting effect appears.
측정 결과, 일반 UV 강판은 표면 광택 정도가 85~95로 측정되나, 본 발명의 텍스쳐 강판은 30~60으로 측정되었다.As a result of the measurement, the general UV steel sheet was measured to have a surface glossiness of 85 to 95, but the texture steel sheet of the present invention was measured to 30 to 60 degrees.
이러한 표면 광택의 소광 현상은 표면상에 형성된 주름 무늬에 의해 빛이 투과될 때 난반사가 발생하여 광택의 저하가 유도되는 것이다.The matting phenomenon of the surface gloss is that the reflection is generated when light is transmitted by the wrinkle pattern formed on the surface, the degradation of the gloss is induced.
따라서, 표면 광택 정도를 측정할 경우 측정값이 낮을수록 강판 표면에서 난반사가 많이 일어났음을 의미하며, 이를 통해 강판 상에 주름이 균일하게 형성되었음을 알 수 있다.Therefore, when measuring the degree of surface glossiness, the lower the measured value, the more diffuse reflection occurs on the surface of the steel sheet, and through this, it can be seen that wrinkles are uniformly formed on the steel sheet.
Claims (4)
상기 도막에 100 내지 250 nm의 단파장 자외선을 조사하여 상기 도막을 1차 경화하는 단계; 및
상기 1차 경화된 도막에 250 내지 400 nm의 장파장 자외선을 조사하여 2차 경화하는 단계
를 포함하는 것을 특징으로 하는 텍스쳐 강판의 제조방법.
Coating an ultraviolet curing solution on a galvanized steel sheet or a cold rolled steel sheet to form a coating film having a thickness of 1 to 30 μm;
Irradiating the coating film with short wavelength ultraviolet rays of 100 to 250 nm to cure the coating film firstly; And
Second curing by irradiating 250-400 nm long-wavelength ultraviolet rays to the first cured coating film
Method for producing a textured steel sheet comprising a.
The acrylate oligomer according to claim 1, wherein the ultraviolet curing solution is selected from the group consisting of 40 to 60% by weight of epoxy acrylate, urethane acrylate, and phthalate acrylate, and 5 to 35% by weight of reactive acrylic. A UV curable composition comprising a monomer, 3 to 10 weight percent photoinitiator, 0.5 to 29 weight percent adhesion promoter and 0.5 to 3 weight percent other additive.
The method of claim 1, wherein the surface of the coating film formed on the steel sheet is cured by the short wavelength ultraviolet radiation to form wrinkles on the surface, and the inside of the coating film is cured by the long wavelength ultraviolet radiation to form a wrinkle inside Method for producing a textured steel sheet, characterized in that the wrinkles are generated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110144122A KR101271981B1 (en) | 2011-12-28 | 2011-12-28 | Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110144122A KR101271981B1 (en) | 2011-12-28 | 2011-12-28 | Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR101271981B1 true KR101271981B1 (en) | 2013-06-05 |
Family
ID=48866372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020110144122A KR101271981B1 (en) | 2011-12-28 | 2011-12-28 | Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR101271981B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101857042B1 (en) * | 2017-01-23 | 2018-05-14 | 동국제강주식회사 | A system and method for menufacturing pre-coated metal color steel sheet |
| KR20200025050A (en) * | 2018-08-29 | 2020-03-10 | (주)엘지하우시스 | Floorings having excellent anti pollution and non-slip property |
| KR20200027139A (en) * | 2018-09-04 | 2020-03-12 | (주)엘지하우시스 | Low gloss non-foaming floorings having radial flexure structure on surface |
| KR20200027138A (en) * | 2018-09-04 | 2020-03-12 | (주)엘지하우시스 | Non-foaming floorings with excellent in iodine resistance and having radial flexure structure on surface |
| KR20200061292A (en) * | 2018-11-23 | 2020-06-02 | (주)엘지하우시스 | Decorative sheet having excellent anti scratch resistance and anti pollution, and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100925632B1 (en) | 2007-12-27 | 2009-11-06 | 주식회사 포스코 | An uv rediation resin composition for coating steel sheet and uv coating steel sheet and a method for preparing thereof |
-
2011
- 2011-12-28 KR KR1020110144122A patent/KR101271981B1/en active IP Right Grant
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100925632B1 (en) | 2007-12-27 | 2009-11-06 | 주식회사 포스코 | An uv rediation resin composition for coating steel sheet and uv coating steel sheet and a method for preparing thereof |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101857042B1 (en) * | 2017-01-23 | 2018-05-14 | 동국제강주식회사 | A system and method for menufacturing pre-coated metal color steel sheet |
| KR20200025050A (en) * | 2018-08-29 | 2020-03-10 | (주)엘지하우시스 | Floorings having excellent anti pollution and non-slip property |
| KR102180634B1 (en) | 2018-08-29 | 2020-11-18 | (주)엘지하우시스 | Floorings having excellent anti pollution and non-slip property |
| KR20200027139A (en) * | 2018-09-04 | 2020-03-12 | (주)엘지하우시스 | Low gloss non-foaming floorings having radial flexure structure on surface |
| KR20200027138A (en) * | 2018-09-04 | 2020-03-12 | (주)엘지하우시스 | Non-foaming floorings with excellent in iodine resistance and having radial flexure structure on surface |
| KR102180633B1 (en) | 2018-09-04 | 2020-11-18 | (주)엘지하우시스 | Non-foaming floorings with excellent in iodine resistance and having radial flexure structure on surface |
| KR102269522B1 (en) | 2018-09-04 | 2021-06-25 | (주)엘지하우시스 | Low gloss non-foaming floorings having radial flexure structure on surface |
| KR20200061292A (en) * | 2018-11-23 | 2020-06-02 | (주)엘지하우시스 | Decorative sheet having excellent anti scratch resistance and anti pollution, and preparation method thereof |
| KR102608459B1 (en) * | 2018-11-23 | 2023-12-04 | (주)엘엑스하우시스 | Decorative sheet having excellent anti scratch resistance and anti pollution, and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101271981B1 (en) | Method for manufacturing texture steel sheet using uv radiation coating and texture steel sheet menufactured with the method | |
| CN103214653B (en) | Resinize and its preparation method and application in a kind of ultraviolet light solidfication water polyurethane face | |
| TWI428410B (en) | Active energy ray curable resin composition, active energy ray curable coating and forming method of protect layer | |
| CN111423809B (en) | LED-UV spraying matte finish paint and preparation method thereof | |
| CN102827501A (en) | Double-curing varnish paint | |
| CZ290073B6 (en) | Ultraviolet curable, clear coating composition and a method for forming a protective and/or decorative coating | |
| US20110281037A1 (en) | One-part dual curing clear coating composition comprising acrylic modified acrylate for cars and dual curing process employing the same | |
| KR100925632B1 (en) | An uv rediation resin composition for coating steel sheet and uv coating steel sheet and a method for preparing thereof | |
| CN107502180A (en) | The photocureable coating of fluorine-containing boron modification methyl vinyl MQ silicon resin | |
| CN107916050A (en) | A kind of UV roller coat black light top coat top coat coating and preparation method thereof | |
| CN105820720A (en) | UV curing coating for PVC material coating process and preparation method for UV curing material | |
| JP2011256378A (en) | Active energy ray-curable coating composition for pre-coated metal and method for manufacturing pre-coated metal using the composition | |
| CN114149727A (en) | Full UV coating system for wooden door, preparation method and coating process | |
| CN101629030B (en) | Coating with high weatherability and self repairability | |
| CN106634457A (en) | UV (ultraviolet) glossy finish paint capable of being used for spray coating and laser roller coating | |
| CN108129982A (en) | A kind of ultraviolet-curing paint for aluminum base circuit board | |
| KR20150074992A (en) | UV curable resin composition for coil coating and coil coated steel sheet coated with the resin coposition | |
| CN106634543A (en) | UV roller-coating adhesion white primer | |
| KR101857042B1 (en) | A system and method for menufacturing pre-coated metal color steel sheet | |
| JPH08245802A (en) | Ultraviolet curing method | |
| MX2007010479A (en) | Radiation curable putty compositions and methods for refinishing a substrate using such compositions. | |
| CN104927633A (en) | UV paint for building external wall panel and preparation method of UV paint | |
| KR102020274B1 (en) | A system and a method for manufacturing pre-coated metal color steel sheets | |
| KR101195897B1 (en) | Gloss-controllable uv curing paint composition and steel sheet coated by the same | |
| CN109266152B (en) | Coating composition for repairing and using method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| GRNT | Written decision to grant | ||
| FPAY | Annual fee payment |
Payment date: 20160527 Year of fee payment: 4 |
|
| FPAY | Annual fee payment |
Payment date: 20170529 Year of fee payment: 5 |
|
| FPAY | Annual fee payment |
Payment date: 20180530 Year of fee payment: 6 |
|
| FPAY | Annual fee payment |
Payment date: 20190529 Year of fee payment: 7 |