WO1996033814A1 - Procede de revetement multicouche - Google Patents

Procede de revetement multicouche Download PDF

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Publication number
WO1996033814A1
WO1996033814A1 PCT/JP1996/001119 JP9601119W WO9633814A1 WO 1996033814 A1 WO1996033814 A1 WO 1996033814A1 JP 9601119 W JP9601119 W JP 9601119W WO 9633814 A1 WO9633814 A1 WO 9633814A1
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WO
WIPO (PCT)
Prior art keywords
base coat
parts
color base
color
coating
Prior art date
Application number
PCT/JP1996/001119
Other languages
English (en)
Japanese (ja)
Inventor
Kyoichi Horibe
Takahisa Kasukawa
Masafumi Kume
Original Assignee
Kansai Paint Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kansai Paint Co., Ltd. filed Critical Kansai Paint Co., Ltd.
Priority to EP96912227A priority Critical patent/EP0823289B1/fr
Priority to DE69623949T priority patent/DE69623949T2/de
Publication of WO1996033814A1 publication Critical patent/WO1996033814A1/fr

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Classifications

    • 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
    • B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
    • B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
    • 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
    • B05D7/50—Multilayers
    • B05D7/56—Three layers or more
    • B05D7/57—Three layers or more the last layer being a clear coat
    • B05D7/577—Three layers or more the last layer being a clear coat some layers being coated "wet-on-wet", the others not

Definitions

  • the present invention has a low coating cost, and is excellent in finish appearance, design, aesthetics, anticorrosion, weather resistance, chipping resistance, physical properties, etc. of a coating film on a metal object, particularly an automobile body. And a method for forming a reverse coating film.
  • thermosetting paints that form coatings with excellent smoothness, clarity, and weather resistance. Finish painted.
  • a cationic electrodeposition paint for imparting anticorrosion properties is applied, and then a middle coat paint for ensuring weather resistance and chipping resistance is applied.
  • a thermosetting paint (hereinafter referred to as “color base coat”) containing a color pigment and Z or a metallic pigment is applied as a top coat to impart aesthetics.
  • color base coat containing a color pigment and Z or a metallic pigment is applied as a top coat to impart aesthetics.
  • a so-called two-coat one-bake method is often used, in which a thermosetting clear paint is applied repeatedly and then the two coatings are simultaneously heated and cured.
  • the present inventors have found that the coating cost is low, and the finished appearance, design, aesthetics, corrosion protection, weather resistance, chipping resistance, etc. of the coating film are extremely excellent.
  • a cationic electrodeposition coating material (A) is applied to a metal substrate and cured by heating, and then the first color base coat ( B) is coated, and a second color base coat (C) having transparency is applied thereon without substantially curing, and then heated to heat the first color base coat (B) and the second color base coat (B).
  • a method for forming a multi-layer paint flag comprises curing (c) ⁇ ! FcR, applying a clear paint (D), and then heating and curing.
  • the feature of the present invention is that the above-mentioned color base coats (B) and (C) are used as top coats without applying a conventional 5 fc paint on the conventional general surface of cationic electrodeposition paint.
  • the point is that it can be painted in two coats and one bake method.
  • the intermediate coating step is omitted on the surface of the baking-cured coating film of the cationic electrodeposition coating material, and the first color base coat (B) is applied even if the above coating material is directly applied. Because of the opacity of the base coat, weather-resistant peeling (the light passing through the topcoat film causes the electrodeposition paint flag to undergo photodegradation, and the electrodeposition coat and the overcoat 3 ⁇ 4 « It was found that the occurrence of peeling between layers) never occurred.
  • the intermediate coating step can be omitted, so that the advantage that the coating cost can be reduced can be obtained.
  • the second color base coat (C) may be colored. Because of its transparency, it is possible to finish the coating surface with excellent finish appearance such as solid feeling, smoothness, clarity, depth, high gloss, high metallic feeling, and eliminating color stickiness. There is a special mold that can be made.
  • first color base coat (B) and the second color base coat (C) according to the present invention, it is possible to form a multi-layer coating film having a novel design and aesthetic properties that have never been seen before. .
  • the clear paint is applied on the heat-cured color base coat film, there is an advantage that any type of clear paint such as a solvent type, an aqueous type or a powder type can be used. can get.
  • the object to be coated according to the method of the present invention is not particularly limited as long as it is a metal product that can be subjected to cationic electrodeposition coating.
  • a metal product that can be subjected to cationic electrodeposition coating.
  • car bodies such as passenger cars, trucks, motorcycles, and buses formed by using these gold JS members. It is preferable that these gold-coated materials are previously subjected to a chemical conversion treatment with a phosphate, a chromate or the like.
  • the cationic electrodeposition paint ( ⁇ ) used in the method of the present invention is a paint for directly applying to the above-mentioned gold-made JR coating object, and its type is not strictly limited, and is known per se.
  • Various cationic electrodeposition paints can be used. Specifically, an epoxy resin modified with an amino group-containing compound, A paint containing as a main component a water-soluble or water-dispersible resin obtained by neutralizing a resin having a base ffi within the range of about 30 to about 200, such as krill resin and polybutadiene resin, with a neutralizing agent.
  • a crosslinking agent for example, block polyisocyanate, alicyclic epoxy resin, etc.
  • a coloring pigment for example, an anti-pigment pigment, an extender pigment, a hydrophilic organic solvent, and the like as necessary.
  • a neutralizing agent for example, organic acids such as acetic acid, hydroxy acetic acid, propionic acid, butyric acid, lactic acid, and glycine; and inorganic acids such as sulfuric acid, hydrochloric acid, and phosphoric acid can be used.
  • the amount of the neutralizing agent used is suitably in the range of about 0.1 to about 0.4 of the neutralization equivalent to the * value of the above tree.
  • the mixture is diluted with deionized water or the like so that the solid content concentration is in the range of about 5 to about 40% by weight, preferably about 10 to about 30% by weight, and ⁇ is 5.5.
  • the coating can be cured by heating to a temperature of from about 140 to about 210, preferably from about 160 to about 190, and the coating thickness can be about 10 to about 10 based on the cured coating. It is preferably in the range of from about 60 m to about 60 m, especially from about 15 to about 40 / zm.
  • the first color base coat (B) is a paint for applying to the cationically electrodeposited surface after being cured by heating, and has a base concealing property.
  • the type is not strictly limited.For example, a known water-based tie or organic solvent-based thermosetting paint containing a base resin, a curing agent, a pigment, water and Z or an organic solvent is used. Can o
  • the base resin is made of the colored flag formed by the first color base coat (B). It is a main component, and has good weather resistance and transparency, and is suitable for a coating resin that can be dissolved or dispersed in water or an organic solvent. Examples thereof include acrylic resin, polyester resin, epoxy resin, and urethane resin. Fats and the like.
  • Upper acrylic resins include, for example, ⁇ , 9-ethylenically unsaturated carboxylic acid, a (meth) acrylate having a functional group such as a hydroxyl group, an amide group, or a methylol group, and other copolymers.
  • An acid value of about 0 to about 100, preferably obtained by copolymerizing a possible monomer, for example, a (meth) acrylate ester having no tt functional group, a substituted or unsubstituted styrene, or an olefin. May be about 5 to about 30 and a hydroxyl value of about 20 to about 200, preferably about 40 to about 120.
  • polyester resin those obtained by subjecting a polybasic acid, a polyhydric alcohol, or a denatured oil to a condensation reaction by an ordinary method can be used.
  • epoxy resin for example, an epoxy group and an unsaturated fatty acid can be used.
  • an esterified ester resin obtained by a method of esterification of the compound is a method of esterification of the compound.
  • urethane resin examples include those obtained by reacting a diisocyanate compound with the acryl resin, polyester resin, or epoxy resin to increase the molecular weight, and are mainly used as a water-dispersible resin.
  • these base resins include a sufficient amount of a hydrophilic group such as a carboxyl group, a hydroxyl group, Methylol group, Ft generally contains a carboxyl group such as an amino group, a sulfonic acid group, or a polyoxyethylene bond, and the resin is dissolved in water by neutralizing the hydrophilic group to form an alkali salt.
  • a hydrophilic group such as a carboxyl group, a hydroxyl group, Methylol group
  • Ft generally contains a carboxyl group such as an amino group, a sulfonic acid group, or a polyoxyethylene bond
  • the resin is dissolved in water by neutralizing the hydrophilic group to form an alkali salt.
  • the amount of the hydrophilic group, for example, the carboxyl group is not particularly limited and can be arbitrarily selected according to the degree of water-solubilization or water-saturation, but generally about 1% based on
  • the water dispersion of the resin can also be achieved by subjecting the monomer component to emulsion polymerization in the presence of a surfactant or a water-soluble resin. Furthermore, it can also be obtained by dispersing the above resin in water in the presence of an emulsifier or the like.
  • the base resin may not contain the hydrophilic group at all, or may contain less than the water-soluble resin.
  • the paint does not need to contain the above-mentioned base resin (hydrophilic group in the organic solvent, but may contain it).
  • other paint components can be produced by dissolving or dispersing them.
  • the organic solvent used at that time those commonly used in paints can be applied.
  • hydrocarbon-based systems such as toluene, xylene, hexane, and hebutane: ethyl sulphate, butyl sulphate, Ester such as ethylene glycol monomethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl acetate, etc .; Ethers such as methyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, and diethylene glycol dibutyl ether; butanol, propanol, octanol, cyclohexanol, alcohols such as diethylene glycol; methyl ethyl ketone, methyl isobutyl ketone, and cyclohexane Ketones such as xanone and isophorone are exemplified.
  • Examples of the form of the organic solvent-based paint include a solution type, a high solid type, and a non-water tttt type.
  • the curing agent that can be blended with the first color base coat (B) is used to three-dimensionally cross-link and cure the base resin by heating.
  • melamine, benzoguanamine, urinary cord and the like are combined with formaldehyde.
  • An amino resin obtained by condensation or co-condensation and, if necessary, further etherification with a lower monohydric alcohol is preferably used.
  • a polyisocyanate compound or a block polyisocyanate compound can also be suitably used.
  • the pigment which can be blended in the first color base coat (B) gives the coating film formed by the first color base coat (B) a base-coating property.
  • metallic pigments such as bronze powder, copper powder, tin powder, lead powder, zinc powder, iron phosphide, pearl-like gold-coated mica powder, and iron oxide ferrite; zinc chromate, strontium chromate, calcium chromate, lead cyanamide , Calcium Lead Acid, Zinc Phosphate, etc .: Titanium Dioxide, Carbon Black, Phthalocyanine Blue, Phthalocyanine Green, Livazole Violet, Anthrapyridine, Azo Orange, Yellow, Flavanthrone Yellow, Isoin Colored pigments such as dry yellow, azo yellow, induthrone blue, dibromanza throne, perylene, red, anthraquinone, quinacridone, biolett, and the like; barita powder, precipitated barium sulfate
  • the first color base coat (B) desirably contains, as a pigment component, a metallic pigment & Z or a color pigment among the above pigments.
  • the first color base coat (B) can further be provided with a dye as required.
  • a dye it is desirable to use a dye having excellent light fastness and solubility in water or an organic solvent. Specific examples include a monoazo dye, a polyazo dye, a gold salt azo dye, and a virazolone azo dye.
  • the ratio of each of the above components in the first color base coat (B) is not strictly limited, and can be selected depending on the purpose and the like.
  • the base resin and the curing agent are generally Based on the total weight of the two components, the former is preferably in the range of 60 to 90% by weight, the expected 70 to 85% by weight, and the latter in the range of 40 to 10% by weight, particularly 30 to 15% by weight. .
  • the pigment can be mixed in an appropriate combination depending on the gap concealing property of the base, the desired color, and the like, and the amount of the pigment is 30 m in the film thickness formed using the first color base coat.
  • An appropriate amount is such that the light transmittance of the cured coating film in the wavelength range of 400 to 700 nm is generally 5% or less, preferably 3% or less.
  • the specific amount depends on the type of pigment and cannot be specified unconditionally, but is usually 1 to 250 parts by weight, preferably 5 to 250 parts by weight, per 100 parts by weight of resin solids (total weight of base resin and curing agent). It can be in the range of ⁇ 150 parts by weight.
  • the light transmittance of the coating flag in the present specification is determined by applying the coating on a glass plate so that the thickness of the coating film after curing becomes a predetermined film thickness, curing the coating, and then heating the coating in warm water at 60 to 70.
  • the coating film obtained by immersion, peeling off the coating, and drying was used as a sample, and a range of 400 to 700 nm was measured using a self-recording spectrophotometer (Hitachi, Ltd., £ 3-3 type). This is the average spectral transmittance when measured at a wavelength of.
  • the coating of the first color base coat (B) can be carried out according to a usual method, and the paint is added with, for example, deionized water and Z or an organic solvent, and if necessary, additives such as a thickener and an antifoaming agent.
  • the solid content is 10 to 70 weight%, preferably about 15 to 55 weight%, and the viscosity is 10 to 60 seconds, especially 12 to 30 seconds (for Ford Cup # 4-20) in the case of solvent type paint, Soshi
  • the cationic electrodeposition paint (A) Can be applied by spray coating or the like to a cured film thickness of, for example, about 5 to 60 m, preferably about 8 to 25 m.
  • the coating film is air-dried at room temperature by air blow or the like without substantially curing the coating film, and then the following second color base coat (C) is applied. Is preferably applied.
  • the color base coat (C) is a paint for applying to the coated surface of the first color base coat (B), and is a transparent paint.
  • the type is not strictly limited, and use a known aqueous type or organic solvent-based thermosetting paint containing a base resin, a curing agent, a pigment, water and Z or an organic solvent. be able to.
  • any of these coating components can be used by selecting from those described for the first color base coat (B).
  • a dye may be added to the second color base coat (C), if necessary.
  • the dye one or more of the dyes described in the first color base coat (B) may be used. It can be used in treatment.
  • the ratio of each component in the second color base coat (C) is not strictly limited, and can be arbitrarily selected according to the purpose.
  • the base resin and the curing agent generally include the total weight of both components.
  • the former is 60-90% by weight, especially 70-85% by weight, the latter is 40-10% by weight, especially 30 Preferably, it is within the range of ⁇ 15% by weight.
  • the second color base coat (C) preferably contains a metallic pigment and / or a coloring pigment as a pigment component.
  • the total content of the pigments is such that the second color base coat (C) has transparency.
  • it is desirable that the amount is relatively small such that the color of the first color base coat can be recognized through the coating film, and is usually smaller than the total content of the pigments in the first color base coat (B). Is preferred.
  • the light transmittance of a cured film having a film thickness of 30 i / m formed by the second color base coat (C) in the wavelength range of 400 to 200 nm is 6 to 95%, particularly 10 to 90%. It is desirable to mix the pigment in an amount such that it falls within the range of 20% to 80%, and more particularly, the amount varies depending on the type of pigment and cannot be specified unconditionally.
  • the total amount of pigment per 100 parts by weight of the pigment is 0.01 to 100 parts by weight, especially 0.1 to 80 parts by weight. ) Is preferably lower than their content.
  • the application of the second color base coat (C) can be carried out according to a usual method, for example, adding deionized water and / or an organic solvent to the paint and, if necessary, further additives such as a thickener and an antifoaming agent.
  • the solid content is 10 to 70% by weight, preferably about 20 to 60% by weight
  • the viscosity is 10 to 60 seconds, preferably 13 to 40 seconds in the case of a solvent type coating (Ford cup # 4 / 20) and, in the case of water-soluble or water-soluble paints, after 200 to 50000086 (111, preferably 300 to 30000 3 6 rpm (B-type viscometer)).
  • the coating film is air-dried at room temperature by air blow or the like without substantially curing the coating film, and then the second color base coat (B) is dried. It is preferable to apply the base coat (C). After painting, by heating at a temperature of about 80 to about 170, preferably about 120 to about 160, for about 3 to about 40 minutes, preferably about 10 to about 30 minutes, The first color base coat (B) and the second color base coat (C) can be cured simultaneously.
  • a heating method a commonly used method, for example, hot air heating, infrared heating, high frequency heating, or the like can be used.
  • the second color base coat (C) is used in order to further improve the aesthetic makeup, finished appearance, weather resistance, chemical resistance, water resistance, moisture resistance, etc. of the formed multilayer coating film.
  • Clear paint (D) can be applied to the painted surface.
  • the clear paint (D) forms a colorless or colored transparent coating film, specifically, comprises a base resin and a curing agent as main components, and further includes a coloring pigment and a metallic pigment as required.
  • the base resin and curing agent that can be used for water-soluble or water-dispersible paints and organic solvent-based paints, and the tangible solvents that can be used for organic solvent-based paints are described in the first color base coat (B). You can use the one selected from those you did. Also, the ratio of the base resin to the curing agent It is preferably within the range described in the first color base coat.
  • Water-soluble or water-dispersible clear coatings and organic solvent-based clear coatings are prepared according to the usual methods, using deionized water and / or organic solvents and, if necessary, additives such as thickeners and defoamers.
  • the solid content is 10 to 95% by weight, preferably about 30 to 80% by weight, and the viscosity is 10 to 70 seconds in the case of a solvent type paint, preferably 15 to 40 seconds (Ford cup # 4Z 20V
  • In the case of water-soluble or water-soluble paints after adjusting to 200 to 5000 cps / 6 rpm, preferably 300 to 3000 cp sZ6 rpm (B-type viscometer), for example, 10 to 70 #m, especially It can be applied by spray coating so as to obtain a cured film thickness of about 15 to 50 jum, etc.
  • the applied coating film is applied at a temperature of about 80 to about 170, preferably about 120 to about 160. It can be cured by heating for about 20 to about 40 minutes. For example, hot air heating, infrared heating, high frequency heating, and the like can be used.
  • the powder coating which can be used as the clear coating (D) is mainly composed of a base resin and a hardener.
  • the base resin is selected from, for example, a hydroxyl group, a carboxyl group and a glycidyl group. Examples include acrylic resins, polyester resins, fluororesins, polyurethane resins, and modified products thereof (for example, a graft polymer) having at least one kind of crosslinking functional group, but these are merely examples. Yes, but not limited to these.
  • the base resin preferably has a glass transition temperature of generally 4 O! Or more, particularly 50 to 120, and more preferably 60 to 100. The composition and the molecular weight are not particularly limited, and are suitable for the purpose.
  • the curing agent is a component for three-dimensionally cross-curing the base resin by heating, for example, an alkoxymethylol melamine, a block poly isocyanate compound, an epoxy compound, an isocyanurate compound, and an aliphatic dibasic acid. Can be used.
  • the ratio of the base resin to the curing agent is such that the molar ratio of the functional groups in the base resin to the functional groups in the curing agent is substantially equimolar.
  • the powder coating may further contain paint additives such as flow regulators, ultraviolet absorbers, and light stabilizers as needed.
  • the powder coating can be usually obtained by melt-kneading the above components, cooling, and pulverizing to an appropriate particle size.
  • the method of applying the powder coating is not particularly limited, and any powder coating method such as electrostatic spray coating and fluidized immersion method can be used.
  • the coating thickness of the powder coating is not particularly limited, but is generally in the range of 20 to 200 m.In particular, the smoothness, clarity, In order to improve the gloss, the feeling of holding, and the like, it is preferable to apply the coating to a thickness of 20 to 120.
  • the curing temperature of the coating film of the powder coating is a curing temperature of the powder coating, for example, a temperature in a range of about 120 to about 180, preferably about 130 to about 170. can do.
  • parts and % indicate “parts by weight” and “% by weight”, respectively.
  • Cationic electrodeposition paint (A) (A-1): Elecron # 9200 (manufactured by Kansai Paint Co., Ltd., trade name, polyamine-modified epoxy resin, block borosilicate) is removed so that the solid content concentration becomes about 16% by weight. Dilute with ionized water, etc., and keep the pH within the range of 5.5 to 8.0 by electrodeposition coating in the usual way. The coating thickness was about 20 jwm based on the cured coating, and the coating was heated to about 175 to cure the coating.
  • Acrylic resin aqueous dispersion (W-1): Deionized water 140%, 30% "Newco 1 707 S FJ (surfactant, Nippon Emulsifier Co., Ltd.)"
  • W-1 Deionized water 140%, 30% "Newco 1 707 S FJ (surfactant, Nippon Emulsifier Co., Ltd.)"
  • One part of the following monomer mixture (1) was added, and the mixture was stirred and mixed in a stream of nitrogen gas, and 3 parts of a 3% aqueous solution of ammonium persulfate was added at 60.
  • This melamine resin is placed in a stirring vessel so as to have a solid content of 25 parts, and an aqueous acrylic resin solution (consisting of n-butyl acrylate, methyl methacrylate, styrene, 2-hydroxyhexyl methacrylate, and acrylic acid) is used. 20% aqueous solution of fatty acid), and gradually add 80 parts of deionized water while stirring with a 1000-1500 rpm disperser, and then stir for another 30 minutes to obtain water-dispersed solids. 2796, an aqueous dispersion of melamin-fat (M-1) having an average particle diameter of 0.11 iim was obtained.
  • M-1 aqueous dispersion of melamin-fat
  • Dibutyl Acid Phosphate 0.3 parts L-Lot
  • the above mixture was mixed with 30 parts of toluene, 20 parts of isobutyl alcohol, 30 parts of sorbose acetate and 20 parts of butylseparate with 20 parts of viscosity (Ford cup # In step S20, the solvent-based first color base coat (B-1) was obtained.
  • the pigment content of the coat (B-1) is 26.5 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), and the total content of metallic pigment and Z or coloring pigment is resin solids. (Base resin and curing agent)
  • the amount was 6.5 parts by weight per 100 parts by weight, and the light transmittance of the formed coating was 0.1% or less at a cured film thickness of 30.
  • Cymel 370 Trade name, product of Mitsui Cyanamid Contains 55% of a mononuclear methoxylated methylolmelamine composed of both xyl groups and methylol groups, based on the solid content.
  • Pigment component 1 1 "Pigment component consisting of 10 parts of Alpaste N-1700NLJ (manufactured by Toyo Aluminum Co., Ltd., trade name, aluminum content 65%) and 20 parts of barium sulfate.
  • Dimethylaminoethanol 0.3 part The above mixture was adjusted with deionized water to a viscosity of 30 seconds (Ford Cup # 420) to obtain an aqueous first color base coat (B-2).
  • the pigment content of the coat (B-2) is 6.5 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), and the total content of metallic pigment and Z or coloring pigment is resin.
  • Solid content (base resin and curing agent) 6.5 parts by weight per 100 parts by weight.
  • the light transmittance of the formed coating film was 0.1% or less at a cured film thickness of 30 m.
  • Pigment 1-2 Trade name "Alpaste N-1700NL", manufactured by Toyo Aluminum Co., Ltd., aluminum content 65%.
  • the solvent-based color base coat (III-3) was obtained.
  • the pigment content of the coat (III-3) is 23 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), and the total content of metallic pigments and / or color pigments is resin solids (base resin and resin).
  • the curing agent was 3 parts by weight per 100 parts by weight, and the light transmittance of the formed coating film was 0.1% or less at a cured film thickness of 30 jt / m.
  • Pigment component 1 3 parts of carbon black and barium sulfate 2
  • a pigment component consisting of 0 parts.
  • Pigment ingredient 1 4 (Note 6) 28 parts
  • Pigment component 1 4: A pigment component consisting of 3 parts of carbon black, 5 parts of "Infinite Color YBG-06-SK3" (Pearl pigment, manufactured by Iseido Co., Ltd.) and 20 parts of barium sulfate.
  • the pigment content of the coat (C-11) is 2.2 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), and the total content of metallic pigments and dyes or color pigments is resin solids (substrate (Resin and curing agent) It was 2.2 parts by weight per 100 parts by weight, and the light transmittance of the formed coating was 10% at a cured thickness of 30 m.
  • Pigment component 1 5 Trade name “Alpaste 891 K”, manufactured by Toyo Aluminum Co., Ltd., aluminum content 72%.
  • the mixture of 0.3 parts of dimethylaminoethanol was adjusted with deionized water to a viscosity of 30 seconds (Ford cup # 4 Z20 V) to obtain an aqueous second color base coat (C-12).
  • the pigment content of the coat (C-12) is 2.2 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), the total content of metallic pigments and Z or coloring additives.
  • Pigment component 1 (Note 8) 1.5 parts Dibutyl acid phosphate 0.3 part The above mixture is mixed with 30 parts of toluene, 20 parts of isobutyl alcohol, 30 parts of sorbose acetate, and 20 parts of butylseparate solvent. The viscosity was adjusted to 20 seconds (with a Ford cup # 4Z20) to obtain a solvent-based second color base coat (C-13).
  • the pigment content of the coat (C-13) is 1.5 parts by weight per 100 parts by weight of resin solids (base resin and curing agent), and the total content of metallic pigment and / or coloring pigment is resin solids (base resin (Fat and curing agent) was 1.5 parts by weight per 100 parts by weight, and the light transmittance of the formed coating film was 10% at a cured thickness of 30 xm.
  • Base resin Fe and curing agent
  • Pigment component-5 infinite Color YBG-06-SK3J (pearl pigment, manufactured by Takaseido Co., Ltd., trade name).
  • Dimethylaminoethanol 0.3 part The above mixture was adjusted with deionized water to a viscosity of 30 seconds (using a Ford cup # 4-20) to obtain an aqueous clear coat (D-2).
  • a steel sheet surface-treated with “Bondelight # 3030” (a zinc phosphate treating agent manufactured by Nippon Parkerizing Co., Ltd.) was dipped in a bath of cationic S-coating paint (A-1) and electrodeposited by a conventional method. The thickness of the coating was about 20 #m based on the cured coating. The coating was pulled out of the bath, washed with water, and heated to about 175 to harden the coating.
  • the water-based first color base coat (B-2) prepared in Step # 420 was applied by air spray to a thickness of about 20 jum based on the cured coating film, and left at room temperature for about 10 minutes.
  • the uncured coating surface of the first color base coat has a viscosity of 20 seconds (with Ford Cup # 4-20) »A solvent-based second color base coat (C-11) or (C-13) or a viscosity of 30 seconds ( Ford Cup # 4/2 0V) »Fixed aqueous second color base coat (C-1 2) as cured coating Paint at about 30 jt / m by air spray, leave at room temperature for about 10 minutes, and heat at 140 for 30 minutes to simultaneously crosslink the first color base coat and second color base coat.
  • a solvent-type clear coat (D-1) with a viscosity of 25 seconds (Ford Cup # 4/20) or a viscosity of 25 seconds (Ford Cup # 4Z20) on the cured coating surface of the second color base coat.
  • the water-based clear coat (D-2) adjusted to the above is applied by air spray so as to be about 40 m based on the cured coating, or the powder clear coat (D-3) is applied by electrostatic powder coating.
  • the coating was applied to a cured film thickness of 50 by the method, allowed to stand at room temperature for about 10 minutes, and then heated and cured under the baking conditions shown in Table 1 below.
  • a solvent type first color base coat (B-1) adjusted to a viscosity of 20 seconds (Ford Cup # 420) is applied to the cured coating surface of the intermediate coating paint to about 15 m based on the cured coating film. And then left at room temperature for about 10 minutes.
  • Example 1 was carried out in the same manner as in Example 1 except that (C-1) was used as the first color base coat and (B-1) was used as the second color base coat.
  • Comparative Example 1 was performed in the same manner as Comparative Example 1 except that (E-1) was used as the first color base coat.
  • Chipping resistance Using a grabber mouth meter (manufactured by Q Panel Co., Ltd.) as a tester, spray 500 g of No. 7 crushed stone at an angle of 45 'with respect to the coating surface and at an air pressure of 0.3 MPa at 120. To impact the coating. Then, an adhesive tape was stuck to the coated surface, and after the tape was rapidly peeled off, the peeling state of the coating film around the scratches caused by the impact was flipped.
  • a grabber mouth meter manufactured by Q Panel Co., Ltd.
  • Length of interference color X-Rite MA 68, 45. C * at incident and 15 ° light reception was determined. The higher the value, the better the design and aesthetics Means that.
  • Flip-flop property The orientation of aluminum was evaluated using “Alcorp” (manufactured by Kansai Paint Co., Ltd., equipment name, metallic feel measurement device). The higher the value, the better the orientation of aluminum.
  • the method of the present invention has a low coating cost, and is extremely excellent in the finished appearance, design, aesthetics, anticorrosion, weather resistance, chipping resistance, etc. of the coating film, and is advantageous in terms of saving resources and pollution control.
  • This method can be widely used in painting automobiles, motorcycles, and electric products.

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

Abstract

Procédé de revêtement multicouche comprenant les étapes suivantes: application d'une peinture électrolytique cationique sur un substrat métallique, chauffe et durcissement de cette peinture, application d'une première couche primaire pigmentée destinée à couvrir la surface métallique, application d'une deuxième couche primaire pigmentée transparente sur la première couche avant que celle-ci ne soit essentiellement durcie, chauffe et durcissement de l'une et l'autre des couches primaires pigmentées, application d'un vernis incolore, puis chauffe et durcissement. Ce procédé permet d'obtenir un revêtement de peinture multicouche constituant une amélioration sur le plan de l'aspect, de la mise au point, des qualités décoratives, de la résistance à la corrosion, aux intempéries ou aux éclats, ainsi que sur le plan d'autres caractéristiques physiques.
PCT/JP1996/001119 1995-04-27 1996-04-25 Procede de revetement multicouche WO1996033814A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96912227A EP0823289B1 (fr) 1995-04-27 1996-04-25 Procede de revetement multicouche
DE69623949T DE69623949T2 (de) 1995-04-27 1996-04-25 Verfahren zum mehrschichtbeschichten

Applications Claiming Priority (2)

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JP7/127333 1995-04-27
JP12733395 1995-04-27

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WO1996033814A1 true WO1996033814A1 (fr) 1996-10-31

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EP (1) EP0823289B1 (fr)
KR (1) KR100412963B1 (fr)
CA (1) CA2219303A1 (fr)
DE (1) DE69623949T2 (fr)
WO (1) WO1996033814A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050346A1 (fr) * 1998-01-23 2000-11-08 Kansai Paint Co., Ltd. Procede de formation d'un revetement multicouche
US6880761B1 (en) 1998-04-02 2005-04-19 Swisscom Mobile Ag Method for loading data onto chip cards and devices adapted thereto
JP2005535442A (ja) * 2002-08-08 2005-11-24 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 車両の高度に飽和した色の外観を達成するための多層コーティング方法
WO2006054611A1 (fr) * 2004-11-16 2006-05-26 Nippon Paint Co., Ltd. Materiau de revetement en couleur a base d'eau, dispersion aqueuse de resine de melamine hydrophobe et procede de production correspondant, composition de revetement a base d'eau, et procede de formation de film multicouche
WO2007013558A1 (fr) * 2005-07-27 2007-02-01 Nippon Paint Co., Ltd. Composition de revêtement métallique à base d'eau et procédé de formation d'un film de revêtement multicouche
JP2008521604A (ja) * 2004-12-04 2008-06-26 ビー・エイ・エス・エフ、コーポレーション プライマーレスの統合型多層塗装
JP2008296215A (ja) * 2002-02-13 2008-12-11 Ppg Ind Ohio Inc 基材上に多層複合コーティングを形成するためのコーティングラインおよびプロセス
JP2011240255A (ja) * 2010-05-18 2011-12-01 Mazda Motor Corp 積層塗膜構造
JP2012516766A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
JP2012516768A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
JP2012516767A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
WO2013039066A1 (fr) * 2011-09-13 2013-03-21 本田技研工業株式会社 Procédé de formation de film de revêtement double couche et film de revêtement double couche
JP2014004552A (ja) * 2012-06-26 2014-01-16 Kansai Paint Co Ltd 複層塗膜形成方法及び塗装物品
WO2015045238A1 (fr) * 2013-09-30 2015-04-02 マツダ株式会社 Film de revêtement multicouche et article revêtu

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US6423425B1 (en) 1998-05-26 2002-07-23 Ppg Industries Ohio, Inc. Article having a chip-resistant electrodeposited coating and a process for forming an electrodeposited coating
US6248225B1 (en) 1998-05-26 2001-06-19 Ppg Industries Ohio, Inc. Process for forming a two-coat electrodeposited composite coating the composite coating and chip resistant electrodeposited coating composition
US6180181B1 (en) 1998-12-14 2001-01-30 Ppg Industries Ohio, Inc. Methods for forming composite coatings on substrates
ES2358191T3 (es) * 2002-02-13 2011-05-06 Ppg Industries Ohio, Inc. Procedimiento para formar un revestimiento de materiales compuestos multicapa sobre un sustrato.
CN1460561B (zh) * 2002-02-28 2012-01-04 关西涂料株式会社 汽车车体的涂饰方法
DE102005012056A1 (de) 2005-03-16 2006-09-28 Basf Coatings Ag Mehrschichtlackierungen, Verfahren zu ihrer Herstellung und deren Verwendung im Automobilbau
US7910211B2 (en) † 2005-06-20 2011-03-22 E.I. Du Pont De Nemours And Company Process for the production of multi-layer coatings
KR100694419B1 (ko) * 2005-10-10 2007-03-12 엘지전자 주식회사 컬러 프라이머를 이용한 고광택 도장 방법
JP5227881B2 (ja) 2009-04-24 2013-07-03 マツダ株式会社 積層塗膜構造
KR101994073B1 (ko) 2019-03-13 2019-06-27 조현호 차량용 조향 링크기구의 표면처리용 지그
KR102532388B1 (ko) 2022-12-29 2023-05-15 주식회사 엠브이 자동차용 사출품의 도장방법

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JPH05194811A (ja) * 1992-01-22 1993-08-03 Dainippon Ink & Chem Inc 樹脂組成物およびそれを用いた上塗り塗装方法
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Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1050346A1 (fr) * 1998-01-23 2000-11-08 Kansai Paint Co., Ltd. Procede de formation d'un revetement multicouche
EP1050346A4 (fr) * 1998-01-23 2004-05-26 Kansai Paint Co Ltd Procede de formation d'un revetement multicouche
US6880761B1 (en) 1998-04-02 2005-04-19 Swisscom Mobile Ag Method for loading data onto chip cards and devices adapted thereto
JP2008296215A (ja) * 2002-02-13 2008-12-11 Ppg Ind Ohio Inc 基材上に多層複合コーティングを形成するためのコーティングラインおよびプロセス
JP2005535442A (ja) * 2002-08-08 2005-11-24 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー 車両の高度に飽和した色の外観を達成するための多層コーティング方法
WO2006054611A1 (fr) * 2004-11-16 2006-05-26 Nippon Paint Co., Ltd. Materiau de revetement en couleur a base d'eau, dispersion aqueuse de resine de melamine hydrophobe et procede de production correspondant, composition de revetement a base d'eau, et procede de formation de film multicouche
JPWO2006054611A1 (ja) * 2004-11-16 2008-05-29 日本ペイント株式会社 水性着色塗料、疎水性メラミン樹脂水分散体及びその製造方法、水性塗料組成物、並びに、複層塗膜形成方法
JP5048337B2 (ja) * 2004-11-16 2012-10-17 日本ペイント株式会社 水性着色塗料、疎水性メラミン樹脂水分散体及びその製造方法、水性塗料組成物、並びに、複層塗膜形成方法
JP2008521604A (ja) * 2004-12-04 2008-06-26 ビー・エイ・エス・エフ、コーポレーション プライマーレスの統合型多層塗装
WO2007013558A1 (fr) * 2005-07-27 2007-02-01 Nippon Paint Co., Ltd. Composition de revêtement métallique à base d'eau et procédé de formation d'un film de revêtement multicouche
JP2012516766A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
JP2012516768A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
JP2012516767A (ja) * 2009-02-05 2012-07-26 ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング 耐蝕性の塗装のためのコーティング剤
US10137476B2 (en) 2009-02-05 2018-11-27 Basf Coatings Gmbh Coating agent for corrosion-resistant coatings
JP2011240255A (ja) * 2010-05-18 2011-12-01 Mazda Motor Corp 積層塗膜構造
DE112011101668T5 (de) 2010-05-18 2013-03-14 Mazda Motor Corporation Laminierte Beschichtungsfilmstruktur
DE112011101668B4 (de) * 2010-05-18 2015-07-02 Mazda Motor Corporation Laminierte Beschichtungsfilmstruktur
US10052658B2 (en) 2010-05-18 2018-08-21 Mazda Motor Corporation Laminated coating film structure
WO2013039066A1 (fr) * 2011-09-13 2013-03-21 本田技研工業株式会社 Procédé de formation de film de revêtement double couche et film de revêtement double couche
JP2014004552A (ja) * 2012-06-26 2014-01-16 Kansai Paint Co Ltd 複層塗膜形成方法及び塗装物品
WO2015045238A1 (fr) * 2013-09-30 2015-04-02 マツダ株式会社 Film de revêtement multicouche et article revêtu
JP2015066865A (ja) * 2013-09-30 2015-04-13 マツダ株式会社 積層塗膜及び塗装物
CN105228827A (zh) * 2013-09-30 2016-01-06 马自达汽车株式会社 叠层涂膜及涂装物

Also Published As

Publication number Publication date
DE69623949D1 (de) 2002-10-31
EP0823289A4 (fr) 1999-06-09
DE69623949T2 (de) 2003-02-20
KR100412963B1 (ko) 2004-04-03
EP0823289A1 (fr) 1998-02-11
KR19980703484A (ko) 1998-11-05
CA2219303A1 (fr) 1996-10-31
EP0823289B1 (fr) 2002-09-25

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