WO2017095067A1 - 광택도 조절이 용이한 표면처리 금속재 및 그 제조방법 - Google Patents
광택도 조절이 용이한 표면처리 금속재 및 그 제조방법 Download PDFInfo
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- WO2017095067A1 WO2017095067A1 PCT/KR2016/013560 KR2016013560W WO2017095067A1 WO 2017095067 A1 WO2017095067 A1 WO 2017095067A1 KR 2016013560 W KR2016013560 W KR 2016013560W WO 2017095067 A1 WO2017095067 A1 WO 2017095067A1
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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
- 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
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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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
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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
-
- 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
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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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
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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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
- B05D2202/00—Metallic substrate
- B05D2202/10—Metallic substrate based on Fe
- B05D2202/15—Stainless steel
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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
- B05D2502/00—Acrylic polymers
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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
- B05D3/067—Curing or cross-linking the coating
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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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1805—C5-(meth)acrylate, e.g. pentyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1811—C10or C11-(Meth)acrylate, e.g. isodecyl (meth)acrylate, isobornyl (meth)acrylate or 2-naphthyl (meth)acrylate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—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 a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/62—Monocarboxylic acids having ten or more carbon atoms; Derivatives thereof
- C08F220/68—Esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/106—Esters of polycondensation macromers
- C08F222/1061—Esters of polycondensation macromers of alcohol terminated polyesters or polycarbonates, e.g. polyester (meth)acrylates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F222/00—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 a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/10—Esters
- C08F222/1006—Esters of polyhydric alcohols or polyhydric phenols
- C08F222/106—Esters of polycondensation macromers
- C08F222/1065—Esters of polycondensation macromers of alcohol terminated (poly)urethanes, e.g. urethane(meth)acrylates
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24917—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] including metal layer
Definitions
- the present invention relates to a surface-treated metal material and a method of manufacturing the same that is easy to adjust the gloss.
- UV-curable paints do not contain solvents, unlike thermosetting paints, and contain a material having a low molecular weight, such as monomers and oligomers, and are paints capable of rapid curing using ultraviolet light.
- Thermosetting polymer coatings containing solvents are characterized by low intermolecular bonding density (i.e. crosslinking degree), low hardness of coating, and easy damage by external friction.
- UV-curable paints that do not use solvents have a high crosslinking degree, so the hardness of the coating film is high, the scratch resistance and the screening property are very excellent, and the gloss is very high.
- UV curable paint is a coating paint that meets these requirements, but it is difficult to meet various conditions for appearance.
- home appliances such as washing machines, refrigerators, and TVs require high gloss and clarity compared to conventional thermosetting paints, while indoor panels, building exteriors, and some home appliances have very low gloss. It requires a product having excellent scratch resistance.
- a matting agent and a dispersant such as silica, alumina or synthetic polymer particles were added to adjust the gloss.
- the content of the matting agent and the dispersant must be adjusted every time, thereby increasing the test cost.
- the basic properties of the coating film such as corrosion resistance, coating adhesion, workability affects the problem that the variation of the physical properties for each product.
- a metal material and formed on at least one surface of the metal material the ultraviolet curable coating composition comprises a cured coating layer, the coating layer is composed of a plurality of projections, the projections are 3 to 16 volumes It is a pico liter, the projection provides a surface-treated metal material with easy gloss control, arranged at a density of 5 to 610 per 1 mm 2 of the metal material.
- the UV curable coating composition may include 40 to 70% by weight of the oligomer, 20 to 59% by weight of the photopolymerizable monomer and 1 to 10% by weight of the photoinitiator.
- the oligomer may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate and polyester acrylate.
- the metal material may be one selected from the group consisting of a cold rolled steel sheet, a hot dip galvanized steel sheet, an electric zinc plated steel sheet, an aluminum plated steel sheet, an aluminum alloy plated steel sheet, a stainless steel sheet, an aluminum sheet, a magnesium sheet, a zinc sheet, and a titanium zinc sheet.
- the spraying may use one or more selected from the group consisting of an inkjet head, a spray gun and a droplet ejection apparatus.
- the UV curable coating composition may include 40 to 70% by weight of the oligomer, 20 to 59% by weight of the photopolymerizable monomer and 1 to 10% by weight of the photoinitiator.
- the oligomer may be at least one selected from the group consisting of urethane acrylate, epoxy acrylate and polyester acrylate.
- the metal material may be one selected from the group consisting of a cold rolled steel sheet, a hot dip galvanized steel sheet, an electric zinc plated steel sheet, an aluminum plated steel sheet, an aluminum alloy plated steel sheet, a stainless steel sheet, an aluminum sheet, a magnesium sheet, a zinc sheet, and a titanium zinc sheet.
- the surface treated steel sheet of the present invention has excellent adhesion, scratch resistance and corrosion resistance, and has an effect of easily controlling glossiness.
- the method of manufacturing the surface treated steel sheet of the present invention provides a surface treated steel sheet having excellent adhesion, scratch resistance, and corrosion resistance. At the same time providing a manufacturing method, there is an effect that can easily adjust the glossiness of the steel sheet.
- Figure 2 is a photograph of the coating layer of the surface-treated metal material of an embodiment of the present invention.
- the glossiness was adjusted by including a matting agent in the coating composition, but the content of the matting agent should be adjusted every time because the required glossiness varies according to the type of product. There was a problem that the test cost increases.
- a method of controlling the glossiness of metal materials by attaching a film having irregularities on the surface to the coating layer was used, but the film should be selected according to the required glossiness according to the type of product, and the film used once cannot be reused. There is an uneconomic problem.
- the present invention can provide a surface-treated metal material and a method of manufacturing the same, which is easy to control the glossiness without using the coating composition and the uneven film formed with a matting agent.
- a metal material and formed on at least one surface of the metal material the ultraviolet curable coating composition comprises a cured coating layer, the coating layer is composed of a plurality of projections, the projections are 3 to 16 volumes It is a pico liter, the protrusions can provide a surface-treated metal material that is easy to adjust the gloss, arranged at a density of 5 to 610 per 1 mm 2 of the metal material.
- the surface treated gold material of the present invention includes a metal material and a coating layer formed on one surface of the metal material, it can be seen that the coating layer is composed of a plurality of projections.
- the coating layer formed of the plurality of protrusions even diffused light reflected from various directions may cause diffuse reflection. The more diffused reflection occurs in the coating layer, the better the matting effect of the coating layer.
- the plurality of protrusions formed after the coating composition lands on the surface of the steel sheet in the form of droplets has a volume of 3 to 16 pico liters, and is arranged at a density of 5 to 610 per 1 mm 2 of the metal to control the glossiness of the surface treated metal. It is preferable to the effect which makes it easy.
- the volume of the protrusions may be 3 to 16 pico liters, preferably 3 to 13 pico liters, and more preferably 3 to 5 pico liters. If the volume of the protrusions is less than 3 pico liters, the droplets are too small to interfere with external airflow during spraying, making it difficult to form the protrusions. On the other hand, if it exceeds 16 pico liters, the projections are coarse in size, so there is little quenching effect due to diffuse reflection of light.
- the density of the protrusions is preferably 5 to 610 per 1 mm 2 of the metal material, more preferably 57 to 608 densities per 1 mm 2 of the metal material.
- the density of the protrusions is less than 5, the number of the protrusions is too small to exhibit the diffuse reflection effect of light, and when it exceeds 610, the diffuse reflection effect is deteriorated due to the overlapping phenomenon of the protrusion period due to the increase in the number of the protrusions.
- the coating layer formed on at least one surface of the metal material may be a cured UV curable coating composition
- the UV curable coating composition may include an oligomer, a photopolymerizable monomer, and a photoinitiator, but preferably does not include a matting agent for controlling gloss.
- the glossiness has been adjusted by using an ultraviolet curable paint containing a matting agent, but the content of the matting agent must be adjusted every time due to the required glossiness according to the type of product, which increases test cost.
- the ultraviolet curable coating composition of the present invention does not usually include a matting agent such as silica, alumina, synthetic polymer powder, ceramic powder, and the like, which is included in the ultraviolet curable paint, and therefore, it is necessary to adjust the content of the matting agent according to the type of product. There is no, it is possible to prevent the problem that the deviation of the physical properties due to the matting agent content control occurs.
- the present invention uses an ultraviolet curable coating composition that does not contain a matting agent, and by controlling the volume and density of the protrusions in the coating layer consisting of a plurality of protrusions, by adjusting the glossiness, due to the conventional glossiness control method Problems that occur can be prevented.
- the ultraviolet curable coating composition of the present invention may include an oligomer, a photopolymerizable monomer and a photoinitiator.
- the oligomer is preferably at least one selected from the group consisting of urethane acrylate, epoxy acrylate and polyester acrylate. It is preferable that the content of the oligomer is 40 to 70% by weight, the content of the oligomer is less than 40% by weight does not satisfy the basic physical properties required by the surface-treated steel sheet, when the content exceeds 70% by weight the viscosity increases to inhibit workability In particular, droplet injection is not easy.
- the photopolymerizable monomer may be a monofunctional monomer, a bifunctional monomer or a polyfunctional monomer
- the content of the photopolymerizable monomer is preferably 20 to 59% by weight.
- the content of the photopolymerizable monomer is less than 20% by weight, it is not easy to spray droplets with a high viscosity solution, and when it exceeds 59% by weight, it is difficult to realize the overall physical properties.
- the photoinitiator may be a photoinitiator for short or long wavelengths, such as epoxy ketones, phenyl esters, etc., the content is preferably 1 to 10% by weight. If the content of the photoinitiator is less than 1% by weight, there is a high possibility of uncured due to the slight initiation by ultraviolet rays, which does not occur the overall curing reaction, and if it exceeds 10% by weight, overcuring occurs, causing cracks in the coating or a large amount of expensive initiator. It is economically disadvantageous by using.
- polymerization initiator examples include compounds such as benzophenone series, benzoin, benzoin ether series, benzyl ketal series, acetophenone series, anthraquinone series, and thioxoxanthone series. These may be used alone or in combination of two or more, but are not limited thereto.
- examples of commercially available polymerization initiators include Irgacure 184 TM, 754 TM, 819 TM, Darocur 1173 TM, TPO TM (CIBA GEIGY), Micure CP-4 TM, MP-8 TM, BP TM, TPO TM (Miwon Corporation). One or more of them may be selected and used, but is not limited thereto.
- the metal material is preferably one selected from the group consisting of cold rolled steel sheet, hot dip galvanized steel sheet, electrogalvanized steel sheet, aluminum plated steel sheet, aluminum alloy plated steel sheet, stainless steel sheet, aluminum sheet, magnesium sheet, zinc sheet and titanium zinc sheet. .
- the method for manufacturing the surface-treated metal material includes forming a coating layer made of a plurality of protrusions by spraying a coating composition for ultraviolet curing on top of the metal material, wherein the protrusions have a volume of 3 to 16 pico liters, and the protrusions have a thickness of 1 mm. per second may be characterized in that an array of 5 to 610 of the density.
- the present invention can form a coating layer by using a method of spraying a coating composition for UV curing on top of the metal material.
- the spraying may be performed using one or more selected from the group consisting of an inkjet head, a spray gun, and an ultrasonic spraying device.
- the UV curable coating composition When spraying the UV curable coating composition on the metal material using the inkjet head, first, the UV curable coating composition may be injected into a nozzle connected to each head of the inkjet printing apparatus including one or more heads. Thereafter, the coating composition for UV curing injected into the nozzle may be sprayed onto the surface of the steel sheet through the head.
- the coating composition for UV curing in the present invention the coating composition lands on the surface of the steel sheet in the form of droplets, thereby forming a coating layer consisting of a plurality of projections.
- the ultraviolet curable coating composition does not contain a solvent, and thus rapid curing is possible using ultraviolet light.
- the ultraviolet curable coating composition since it contains a material having a lower molecular weight than a thermosetting paint, it is combined with a high crosslinking degree, so that the hardness of the coating film is high, the scratch resistance is excellent, the gloss is very high, and the screenability is excellent.
- UV curable coating compositions are used in products requiring high gloss and linearity compared to thermosetting paints.
- the present invention can control the glossiness by adjusting the volume and density of the protrusions in the coating layer consisting of a plurality of protrusions.
- the plurality of protrusions formed after the coating composition lands on the surface of the steel sheet in the form of droplets has a volume of 3 to 16 pico liters, and is arranged at a density of 5 to 610 per 1 mm 2 of the metal to control the glossiness of the surface treated metal. It is preferable to the effect which makes it easy.
- the volume of the protrusions may be 3 to 16 pico liters, preferably 3 to 13 pico liters, and more preferably 3 to 5 pico liters. If the volume of the protrusions is less than 3 pico liters, the droplets are too small to interfere with external airflow during spraying, making it difficult to form the protrusions. On the other hand, if it exceeds 16 pico liters, the projections are coarse in size, so there is little quenching effect due to diffuse reflection of light.
- the density of the protrusions is preferably 5 to 610 per 1 mm 2 of the metal material, more preferably 57 to 608 densities per 1 mm 2 of the metal material.
- the density of the protrusions is less than 5, the number of the protrusions is too small to exhibit the diffuse reflection effect of light, and when it exceeds 610, the diffuse reflection effect is deteriorated due to the overlapping phenomenon of the protrusion period due to the increase in the number of the protrusions.
- the coating layer may be ultraviolet curing.
- the ultraviolet curing is preferably made for 0.1 to 60 seconds. If the UV curing time is less than 0.1 seconds may not be sufficient ultraviolet irradiation to the photoinitiator may cause uncured coating layer may be uncured, if exceeding 60 seconds may result in a decrease in coating properties due to over-curing and overheating.
- UV coating composition sprayed on the metal material preferably comprises 40 to 70% by weight oligomer, 20 to 59% by weight photopolymerizable monomer and 1 to 10% by weight photoinitiator.
- the oligomer is preferably at least one selected from the group consisting of urethane acrylate, epoxy acrylate and polyester acrylate. It is preferable that the content of the oligomer is 40 to 70% by weight, the content of the oligomer is less than 40% by weight does not satisfy the basic physical properties required by the surface-treated steel sheet, when the content exceeds 70% by weight the viscosity increases to inhibit workability In particular, droplet injection is not easy.
- the photopolymerizable monomer may be a monofunctional monomer, a bifunctional monomer or a polyfunctional monomer
- the content of the photopolymerizable monomer is preferably 20 to 59% by weight.
- the content of the photopolymerizable monomer is less than 20% by weight, it is not easy to spray droplets with a high viscosity solution, and when it exceeds 59% by weight, it is difficult to realize the overall physical properties.
- the photoinitiator may be a photoinitiator for short or long wavelengths, such as epoxy ketones, phenyl esters, etc., the content is preferably 1 to 10% by weight. If the content of the photoinitiator is less than 1% by weight, there is a high possibility of uncured due to the slight initiation by ultraviolet rays, which does not occur the overall curing reaction, and if it exceeds 10% by weight, overcuring occurs, causing cracks in the coating or a large amount of expensive initiator. It is economically disadvantageous by using.
- the type of metal material to which the UV-curable coating composition is sprayed is not particularly limited, but for example, cold rolled steel sheet, hot dip galvanized steel sheet, electrogalvanized steel sheet, aluminum plated steel sheet, aluminum alloy plated steel sheet, stainless steel sheet, aluminum sheet, magnesium It is preferable that it is one selected from the group consisting of a plate, a zinc plate and a titanium zinc plate.
- Examples 15 to 19 having a volume of 13 pico liter of the protrusion can adjust the glossiness from a minimum of 108 to 128, and Examples 20 to 24 having a volume of the protrusion of 16 pico liter of the gloss of at least 110 to 126 It was confirmed that the degree can be adjusted. In other words, the smaller the volume of the projections, the easier it is to adjust the glossiness of a wide range, especially when the volume of the projections 3 to 5 pico liter it was confirmed that the most easy to adjust the glossiness.
- Comparative Examples 2 to 10 which are not included in the volume of 3 to 16 pico liters of the protrusions and the density of 5 to 610 pieces / mm 2 of the protrusions, are similar in glossiness to Comparative Example 1 in which the coating layer is not formed and exhibit a matting effect. Not confirmed.
- Figure 2 is a photograph of the coating layer of the surface-treated metal material of an embodiment of the present invention, it was confirmed that the coating layer having a plurality of protrusions formed on the metal material.
- the glossiness can be adjusted by controlling the silica content and the average particle size, but Comparative Examples 27 to 29 confirmed that the adhesion of the coating film is very low. That is, since the silica content and the average particle size correspond to factors affecting the basic physical properties of the coating layer, when the coating layer is formed of an ultraviolet curable coating composition containing silica as a matting agent, it is confirmed that the variation of the physical properties of the surface-treated metal material is severe. did.
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
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- Laminated Bodies (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
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Abstract
Description
돌기의 부피(pico liter) | 돌기의 밀도(개/mm2) | 도막 밀착력 | 광택도(60도 기준) | |
비교예1 | 0 | 0 | ○ | 177 |
비교예2 | 3 | 3 | ○ | 170 |
실시예1 | 3 | 57 | ○ | 145 |
실시예2 | 3 | 123 | ○ | 132 |
실시예3 | 3 | 186 | ○ | 116 |
실시예4 | 3 | 238 | ◎ | 108 |
실시예5 | 3 | 295 | ◎ | 96 |
실시예6 | 3 | 366 | ◎ | 91 |
실시예7 | 3 | 423 | ◎ | 101 |
실시예8 | 3 | 486 | ◎ | 110 |
실시예9 | 3 | 551 | ◎ | 122 |
실시예10 | 3 | 608 | ◎ | 125 |
비교예3 | 3 | 705 | ◎ | 163 |
비교예4 | 5 | 3 | ○ | 168 |
실시예11 | 5 | 63 | ◎ | 142 |
실시예12 | 5 | 124 | ◎ | 130 |
실시예13 | 5 | 268 | ◎ | 95 |
실시예14 | 5 | 486 | ◎ | 120 |
비교예5 | 5 | 680 | ◎ | 171 |
비교예6 | 13 | 3 | ○ | 175 |
실시예15 | 13 | 62 | ○ | 128 |
실시예16 | 13 | 132 | ◎ | 121 |
실시예17 | 13 | 179 | ◎ | 116 |
실시예18 | 13 | 235 | ◎ | 108 |
실시예19 | 13 | 302 | ◎ | 125 |
비교예7 | 13 | 620 | ◎ | 175 |
비교예8 | 16 | 3 | ○ | 153 |
실시예20 | 16 | 5 | ○ | 116 |
실시예21 | 16 | 10 | ◎ | 120 |
실시예22 | 16 | 20 | ◎ | 116 |
실시예23 | 16 | 10 | ◎ | 110 |
실리카 함량(중량%) | 실리카 평균입도(㎛) | 도막 밀착력 | 광택도(60도 기준) | |
비교예11 | 0 | - | ◎ | 157 |
비교예12 | 0 | - | ◎ | 154 |
비교예13 | 0 | - | ◎ | 161 |
비교예14 | 0 | - | ◎ | 158 |
비교예15 | 1 | 2 | ◎ | 148 |
비교예16 | 1 | 2 | ◎ | 150 |
비교예17 | 1 | 2 | ◎ | 150 |
비교예18 | 1 | 8 | ○ | 89 |
비교예19 | 1 | 8 | ○ | 92 |
비교예20 | 1 | 8 | ◎ | 92 |
비교예21 | 2 | 2 | ◎ | 145 |
비교예22 | 2 | 2 | ◎ | 147 |
비교예23 | 2 | 8 | ○ | 91 |
비교예24 | 2 | 8 | ◎ | 89 |
비교예25 | 4 | 2 | ◎ | 148 |
비교예26 | 4 | 8 | ◎ | 92 |
비교예27 | 10 | 2 | × | 41 |
비교예28 | 10 | 5 | × | 43 |
비교예29 | 10 | 8 | × | 43 |
Claims (10)
- 금속재; 및상기 금속재의 적어도 일면에 형성되고, 자외선 경화형 코팅 조성물이 경화된 코팅층을 포함하며,상기 코팅층은 복수의 돌기로 이루어지고,상기 돌기는 부피가 3 내지 16 pico liter이고,상기 돌기는 상기 금속재 1mm2 당 5 내지 610개의 밀도로 배열된, 광택도 조절이 용이한 표면처리 금속재.
- 제 1항에 있어서,상기 자외선 경화형 코팅 조성물은 올리고머 40 내지 70 중량%, 광중합성 모노머 20 내지 59 중량% 및 광개시제 1 내지 10 중량%를 포함하는, 광택도 조절이 용이한 표면처리 금속재.
- 제 2항에 있어서,상기 올리고머는 우레탄 아크릴레이트, 에폭시 아크릴레이트 및 폴리에스테르 아크릴레이트로 이루어진 군에서 선택된 하나 이상인, 광택도 조절이 용이한 표면처리 금속재.
- 제 1항에 있어서,상기 금속재는 냉연강판, 용융아연도금강판, 전기아연도금강판, 알루미늄도금강판, 알루미늄합금도금강판, 스테인리스강판, 알루미늄 판재, 마그네슘 판재, 아연 판재 및 티타늄아연 판재로 이루어진 군에서 선택된 하나인, 광택도 조절이 용이한 표면처리 금속재.
- 금속재 상부에 자외선 경화용 코팅 조성물을 분사하여 복수의 돌기로 이루어진 코팅층을 형성하는 단계를 포함하며,상기 돌기는 부피가 3 내지 16 pico liter이고,상기 돌기는 상기 금속재 1mm2 당 5 내지 610개의 밀도로 배열된, 광택도 조절이 용이한 표면처리 금속재 제조방법.
- 제 5항에 있어서,상기 코팅층을 자외선 경화하는 단계를 더 포함하는, 광택도 조절이 용이한 표면처리 금속재 제조방법.
- 제 6항에 있어서,상기 자외선 경화는 0.1 내지 60초 동안 이루어지는, 광택도 조절이 용이한 표면처리 금속재 제조방법.
- 제 5항에 있어서,상기 분사는 잉크젯 헤드, 스프레이건 및 초음파 분사 장치로 이루어진 군에서 선택된 하나 이상을 이용하는, 광택도 조절이 용이한 표면처리 금속재 제조방법.
- 제 5항에 있어서,상기 자외선 경화형 코팅 조성물은 올리고머 40 내지 70 중량%, 광중합성 모노머 20 내지 59 중량% 및 광개시제 1 내지 10 중량%를 포함하는, 광택도 조절이 용이한 표면처리 금속재 제조방법.
- 제 5항에 있어서,상기 금속재는 냉연강판, 용융아연도금강판, 전기아연도금강판, 알루미늄도금강판, 알루미늄합금도금강판, 스테인리스강판, 알루미늄 판재, 마그네슘 판재, 아연 판재 및 티타늄아연 판재로 이루어진 군에서 선택된 하나인, 광택도 조절이 용이한 표면처리 금속재 제조방법.
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US15/779,689 US11383268B2 (en) | 2015-11-30 | 2016-11-23 | Surface-treated metallic material with easy control of glossiness and manufacturing method therefor |
JP2018527738A JP6681985B2 (ja) | 2015-11-30 | 2016-11-23 | 光沢度の調節が容易な表面処理金属材及びその製造方法 |
CN201680069358.7A CN108290181A (zh) | 2015-11-30 | 2016-11-23 | 容易调节光泽度的表面处理金属材料及其制造方法 |
EP16870963.2A EP3384998A4 (en) | 2015-11-30 | 2016-11-23 | Surface-treated metallic material with easy control of glossiness and manufacturing method therefor |
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JP (1) | JP6681985B2 (ko) |
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KR20190074675A (ko) | 2017-12-20 | 2019-06-28 | 주식회사 포스코 | 광택도 측정장치 |
KR102405876B1 (ko) * | 2018-11-22 | 2022-06-07 | (주)엘엑스하우시스 | 내오염성 및 심미적 효과가 우수한 장식재 및 이의 제조방법 |
KR102209546B1 (ko) * | 2018-12-19 | 2021-01-29 | 주식회사 포스코 | 광택도 및 표면특성이 우수한 도금강판 및 그 제조방법 |
KR102467560B1 (ko) * | 2019-10-10 | 2022-11-17 | (주)엘엑스하우시스 | 내오염성이 뛰어난 바닥재 |
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- 2016-11-23 WO PCT/KR2016/013560 patent/WO2017095067A1/ko active Application Filing
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Also Published As
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EP3384998A4 (en) | 2018-12-26 |
CN108290181A (zh) | 2018-07-17 |
KR20170064070A (ko) | 2017-06-09 |
JP2018535326A (ja) | 2018-11-29 |
KR101819290B1 (ko) | 2018-01-17 |
US20200306793A1 (en) | 2020-10-01 |
JP6681985B2 (ja) | 2020-04-15 |
US11383268B2 (en) | 2022-07-12 |
EP3384998A1 (en) | 2018-10-10 |
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