CN108583125B - Faucet coating decoration process - Google Patents
Faucet coating decoration process Download PDFInfo
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- CN108583125B CN108583125B CN201810372605.1A CN201810372605A CN108583125B CN 108583125 B CN108583125 B CN 108583125B CN 201810372605 A CN201810372605 A CN 201810372605A CN 108583125 B CN108583125 B CN 108583125B
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- faucet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/20—Applying plastic materials and superficially modelling the surface of these 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
- 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
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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
- B05D3/02—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 baking
-
- 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
- B05D3/12—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 mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C1/00—Processes, not specifically provided for elsewhere, for producing decorative surface effects
- B44C1/16—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like
- B44C1/165—Processes, not specifically provided for elsewhere, for producing decorative surface effects for applying transfer pictures or the like for decalcomanias; sheet material therefor
- B44C1/175—Transfer using solvent
- B44C1/1752—Decalcomanias provided with a particular decorative layer, e.g. being specially adapted to allow the formation of a metallic or dyestuff layer on a substrate unsuitable for direct deposition
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Laminated Bodies (AREA)
Abstract
A faucet coating decoration process comprises the following steps: (1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning; (2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing; (3) water-transferring the prefabricated coating film texture on the surface of the faucet priming paint to form a texture decoration layer; (4) spraying finish paint on the texture decoration layer obtained in the step (3); (5) and after the surface of the finish paint is polished by abrasive paper, a transparent nano coating with good hardness and wear resistance is sprayed, and a finished product is prepared after heat treatment. The decorative texture of the faucet obtained by the invention is rich and various, and is environment-friendly; and an effective protective layer is formed by spraying a transparent nano coating with good hardness and wear resistance, so that the hardness and wear resistance of the common water transfer finish paint are improved, and the color development effect of the patterns is good.
Description
Technical Field
The invention relates to the technical field of bathroom decoration, in particular to a faucet coating decoration process.
Background
At present, the existing faucet electroplating process is mainly a process of plating copper, plating nickel and plating chromium, wherein the thickness of a nickel layer is 1-12 μm, and the thickness of a chromium layer is 0.3-0.5 μm, but as the water electroplating process usually needs to carry out a plurality of oil removal and acid washing processes and needs to continuously replace various electrolytes, cations to be plated with metal in a plating solution can be effectively deposited on the surface of a base metal through the action of electrolysis to form a plating layer with a stable structure, so that the problems of serious environmental pollution such as water pollution and huge environmental protection pressure exist, and the faucet obtained by the traditional water electroplating or baking finish water electroplating process has a single decorative effect, lacks the decoration of pattern, the design material and space of the faucet decoration are limited, and the faucet decoration process is greatly limited.
Disclosure of Invention
The invention aims to provide a faucet coating decoration process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a faucet coating decoration process comprises the following steps:
(1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing;
(3) water-transferring the prefabricated coating film texture on the surface of the faucet priming paint to form a texture decoration layer;
(4) spraying finish paint on the texture decoration layer obtained in the step (3);
(5) and after the surface of the finish paint is polished by abrasive paper, spraying a transparent nano coating, and performing heat treatment to prepare a finished product.
The invention provides a faucet coating decoration process, wherein after a faucet blank is subjected to surface treatment and primer spraying, a water coating film mode is adopted to decorate patterns on the surface of the faucet blank, and a texture decoration layer with richer and more diverse decorative patterns and finer patterns is effectively obtained; compared with the existing decoration modes of electroplating and baking finish, the decoration effect of the invention is richer and fuller, and the mode of water-coated film decoration is more environment-friendly without changing electrolyte for many times; and because the water coating film used forms the wearability of the texture decorative layer to be lower, further spray a layer of transparent nanometer coating with good hardness and wearability after the surface of the texture decorative layer is sprayed and polished, thus form more effective protective layer after heat treatment, the pencil hardness of its surface can reach 3-4H, the hardness is all higher than baking finish and other spray-coating tap products, and while improving the hardness and wearability of the surface greatly, can also promote the color development effect of the pattern color, form better refraction and reflection light effect, make the color of the pattern brighter.
Further, the water transfer printing of the coating film texture on the surface of the faucet primer comprises the following steps:
a. making the designed decorative texture into a water transfer printing coating film;
b. cutting the water transfer printing coating film according to the requirement, and spreading the film on a constant-temperature water surface, wherein the water temperature is controlled to be 25 +/-5 ℃, and the PH value is neutral;
c. spraying an activating agent;
d. transferring the texture of the coating film to the surface of the primer of the faucet through water transfer printing operation, and washing and drying to form a texture decorative layer;
c. and spraying finish paint on the surface of the texture decoration layer by using an air pressure spray gun with the aperture of 0.8-1.2 mm.
According to the design of the texture of the coating film, various decorative patterns such as stone grains, wood grains and the like which cannot be manufactured by the conventional electroplating and baking finish decorative mode can be formed by adopting the mode, so that the bathroom cabinet has the advantages of rich decoration, capability of manufacturing a whole set of decorative products matched with the bathroom cabinet surface, increase of design materials and space of a designer, energy conservation and environmental protection; and the inherent adhesive force of the finish paint and the water transfer printing film is utilized to ensure that the finish paint and the water transfer printing film generate high adhesive force, so that a hard protective film layer is formed by curing, the water-coated film layer is effectively prevented from being damaged, and the stability of the decorative pattern layer is improved.
Meanwhile, the transparent nano coating is further coated on the surface of the texture decoration layer formed by water coating, and is combined with the finish paint, so that the hardness and the wear resistance of the surface are improved, the texture decoration layer is prevented from being damaged, the finish paint can permeate into the texture decoration layer, the color development of the pattern color of the texture decoration layer is promoted, a more uniform refraction and reflection light effect is formed, and the pattern is more delicate.
The water temperature is controlled within the range of 20-30 ℃, so that the problem that the solubility of a base material layer of the water transfer printing film paper is reduced due to too low water temperature is avoided; when the water temperature is too high, the image-text layer of the membrane paper is damaged, and the pattern deformation is caused; and after the water transfer printing is finished, washing is carried out, and the residual film is washed away, so that the finish paint is sprayed more uniformly.
Further, the activator is prepared by mixing benzene substances, lipid substances, alcohol substances and white gasoline. The benzene substances comprise benzene and dimethylbenzene, the lipid substances comprise n-butyl acetate and ethyl acetate, the alcohol substances comprise isopropanol, ethanol and propanol, the white gasoline is petroleum ether or n-hexane, and the polyvinyl alcohol in the water transfer printing film paper can be quickly dissolved and destroyed by spraying an activating agent on the surface of the film paper, but the pattern layer is not destroyed, so that the pattern layer is in a free state in water, and a better transfer printing effect is achieved.
Further, the primer and the finish coat are oily or aqueous polyurethane resin, and the fineness of the primer and the finish coat is 200-400 meshes. And the primer and the finish paint with certain fineness are adopted for spraying to prevent the spray gun from being blocked, so that the spraying is more uniform and the adhesive force is good. The primer with a certain thickness is sprayed to increase the adhesive force between the water transfer film and the water faucet blank, increase the surface evenness of the water faucet blank, cover the tiny defects and ensure the smooth and bright surface of the product; the finish paint plays an effective role in protecting the water transfer printing film.
Further, the washing time is 2-5min, the drying temperature is 80-100 ℃, and the drying time is 30-60 min.
Further, the surface of the finish paint is polished by sand paper, and the sand paper is 600-1000 meshes. The surface roughness of the finish paint is increased by utilizing a physical polishing mode, so that the adhesive force between the finish paint and the transparent nano coating is improved, the stability of an interlayer structure is improved, and the delamination phenomenon is prevented.
Further, the rough treatment in the step (1) is carried out by using 220-800 mesh sand grinding or/and 120-400 mesh sand grinding. The sand material is brown corundum sand material, and the surface of the faucet blank can be subjected to rough treatment by carrying brown corundum abrasive material in high-pressure air flow through sand blasting so as to improve the adhesive force between the primer and the faucet blank; and dust can be blown before spraying the priming paint, so that the priming paint adhesion is prevented from being influenced by oil stain, dust and the like through oil removal, dust removal and cleaning.
Further, the transparent nano coating is made of silicon-aluminum sol nano coating with the fineness of 200-400 meshes, is sprayed by a 1.0-1.2mm aperture air pressure spray gun, and is subjected to heat treatment at 80 ℃ for 30-60 min.
The modified silica-alumina sol nano coating with certain fineness is sprayed under certain pressure, so that a spray gun is prevented from being blocked, the spraying is more uniform, and the adhesion between the silica-alumina sol nano coating and the texture decoration layer is better after heat treatment at 80 ℃ for 30-60 min.
Further, the thickness of the primer is 20-35 μm.
The invention has the beneficial effects that: the water-coated film is adopted to decorate the patterns on the surface of the water faucet blank, so that a texture decoration layer with richer and more diverse decoration patterns and finer patterns is obtained, the decoration effect of the water faucet is richer and fuller, and the water-coated film is utilized to decorate the water faucet blank in a more environment-friendly way; and the surface of the texture decoration layer is sprayed with finish paint and polished, and then is further sprayed with a layer of transparent nano coating with good hardness and wear resistance, a more effective protection layer is formed after heat treatment, the pencil hardness of the surface of the texture decoration layer can reach 3-4H, and the hardness of the surface of the texture decoration layer is higher than that of other spraying faucet products such as baking paint, and the like, so that the color development effect of the pattern color can be promoted while the hardness and wear resistance of the surface are greatly improved, a better refraction and reflection light effect is formed, and the color of the pattern is brighter.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments.
Embodiment 1-a black gold flower color tap coating decoration process, includes the following steps:
(1) putting the faucet blank in a sand blasting machine, performing 220-mesh sand blasting treatment on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is special PU (polyurethane) primer for water transfer printing and is filtered by a 200-mesh filter screen; manually spraying a water faucet by using a handheld air pressure spray gun with the aperture of 1.2mm, wherein the thickness of the primer is 20 mu m, and curing the primer by self-drying;
(3) preparing a required activating agent according to a ratio for standby, manufacturing a pre-designed black golden flower decorative texture into a water transfer printing coating film, cutting the film according to requirements, paving the film on the surface of a constant-temperature water tank, keeping the pH value neutral at the water temperature of 20 ℃, and spraying the activating agent;
b, gradually attaching the contour of the water faucet blank to be transferred to a water transfer film, slowly transferring the free image-text decoration layer to the surface of the water faucet under the action of water pressure, and rotating the water faucet at a constant speed according to the shape of the water faucet to avoid disordered pattern overlapping caused by overlapping too many image-text layers at a joint; hanging the transferred faucet blank on a tunnel type sprinkling washing line, washing for 5 minutes, and then drying in a tunnel type drying furnace at 80-100 ℃ for 60 minutes to form a texture decoration layer;
c. spraying finish paint on the surface of the faucet blank by using an air pressure spray gun with the aperture of 1.2mm, and drying by air or baking for 60min at 80 ℃; the finish paint is water-based finish paint and is filtered by a 200-mesh filter screen.
(4) After finishing paint on the surface of the faucet blank is polished by 600-plus-1000-mesh sand paper, spraying a layer of silica-alumina sol nano coating by using an air pressure spray gun with the aperture of 1.2mm, filtering the silica-alumina sol nano coating by using a 200-mesh filter screen, baking and drying the faucet blank in an oven at 80 ℃ for 60min to obtain the faucet 1 with the black golden flower colored water coating film decoration, and testing that the pencil hardness of the surface of the faucet 1 is 3H; the decoration effect of the black golden pattern can not be obtained by the prior electroplating or paint baking method.
Embodiment 2-a yellow jade's tap cladding decoration technology, includes the following step:
(1) putting the faucet blank in a sand blasting machine, performing 400-mesh sand blasting on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is special PU (polyurethane) primer for water transfer printing and is filtered by a 400-mesh filter screen; manually spraying a faucet by using a handheld air pressure spray gun with the aperture of 1.0mm, wherein the thickness of the primer is 35 mu m, and curing the primer by self-drying;
(3) preparing a required activating agent according to a ratio for standby, preparing a water transfer printing coating film from a pre-designed yellow jade decorative texture, cutting the film according to requirements, paving the film on the surface of a constant-temperature water tank, keeping the pH value neutral at the water temperature of 30 ℃, and spraying the activating agent;
b, gradually attaching the contour of the water faucet blank to be transferred to a water transfer film, slowly transferring the free image-text decoration layer to the surface of the water faucet under the action of water pressure, and rotating the water faucet at a constant speed according to the shape of the water faucet to avoid disordered pattern overlapping caused by overlapping too many image-text layers at a joint; hanging the transferred faucet blank on a tunnel type sprinkling washing line, washing for 2 minutes, and then drying in a tunnel type drying oven at 80-100 ℃ for 30 minutes to form a texture decoration layer;
c. spraying finish paint on the surface of the faucet blank by using an air pressure spray gun with the aperture of 0.8mm, and baking for 30min at the temperature of 80 ℃ or self-drying; the finish paint is water-based finish paint and is filtered by a 400-mesh filter screen.
(4) After finishing paint on the surface of the water tap blank is polished by 600-plus-1000-mesh sand paper, spraying a layer of silica-alumina sol nano coating by using an air pressure spray gun with the aperture of 1.0mm, filtering the silica-alumina sol nano coating by using a 400-mesh filter screen, baking and drying the water tap blank in an oven at 80 ℃ for 30min for heat treatment to obtain the water tap with the jade water-coated film decoration, and testing that the pencil hardness of the surface of the water tap is 3.8H; the decoration effect of the yellow jade patterns cannot be obtained by the existing electroplating or paint baking method.
Embodiment 3-a blue and white colored tap coating decoration technology, includes the following steps:
(1) putting the faucet blank in a sand blasting machine, performing 120-mesh sand blasting treatment on the surface of the faucet blank, cleaning with alcohol or environment-friendly cleaning liquid plus ultrasonic waves to remove oil, and drying;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, wherein the primer is special PU (polyurethane) primer for water transfer printing and is filtered by a 300-mesh filter screen; automatically spraying a water tap by using an air pressure spray gun with the aperture of 1.1mm, wherein the thickness of the sprayed primer is 30 mu m, and curing the primer by self-drying;
(3) preparing a required activating agent according to a ratio for standby, preparing a water transfer printing coating film from a pre-designed bluish white decorative texture, cutting the film according to requirements, paving the film on the surface of a constant-temperature water tank, keeping the pH value neutral at the water temperature of 25 ℃, and spraying the activating agent;
b, gradually attaching the contour of the water faucet blank to be transferred to a water transfer film, slowly transferring the free image-text decoration layer to the surface of the water faucet under the action of water pressure, and rotating the water faucet at a constant speed according to the shape of the water faucet to avoid disordered pattern overlapping caused by overlapping too many image-text layers at a joint; hanging the transferred faucet blank on a tunnel type sprinkling washing line, washing for 3 minutes, and then drying in a tunnel type drying oven at 80-100 ℃ for 45 minutes to form a texture decoration layer;
c. spraying finish paint on the surface of the faucet blank by using an air pressure spray gun with the aperture of 1.1mm, and baking for 45min at the temperature of 80 ℃ or self-drying; the finish paint is water-based finish paint and is filtered by a 300-mesh filter screen.
(4) After finishing paint on the surface of the water tap blank is polished by 600-plus-1000-mesh sand paper, spraying a layer of silica-alumina sol nano coating by using an air pressure spray gun with the aperture of 1.1mm, filtering the silica-alumina sol nano coating by using a 300-mesh filter screen, baking and drying the water tap blank in an oven at 80 ℃ for 45min to obtain the water tap with blue and white color water coating decoration, and testing that the pencil hardness of the surface of the water tap is 4H; the decorative effect of the grey and white pattern can not be obtained by the existing electroplating or paint baking method.
Comparative example 1-based on the faucet decoration process of black golden flower water coating decoration in example 1, the finish paint on the surface of the faucet blank polished by 600-sand paper of 1000 meshes in the step (4) is omitted, the silica-alumina sol nano coating is directly sprayed, the rest preparation steps and experimental parameter conditions are the same as those in example 1, the faucet 2 with black golden flower water coating decoration is obtained, and the pencil hardness of the surface is tested to be 2.1H.
Comparative example 2-based on the faucet decoration process of black golden flower color water coating decoration in example 1, the finish paint of the surface of the faucet blank polished by 600-mesh 1000-mesh sand paper in the step (4) is eliminated, and the silica-alumina sol nano paint is not sprayed, and the rest preparation steps and experimental parameter conditions are the same as those in example 1, so that the faucet 3 with black golden flower color water coating decoration is obtained, the pencil hardness of the surface is tested to be 1.5H, and the pattern color is darker than that in example 1.
Therefore, the mode of water coating decoration can be used for obtaining the decorative effect that patterns and patterns are more abundant and various and the texture is finer and finer, a more effective protective layer can be formed by spraying the silicon-aluminum sol nano coating on the surface of the polished finish paint, the pencil hardness of the surface of the protective layer can reach 3-4H, the hardness and the wear resistance of the surface of the protective layer are improved, the color development effect of the pattern color can be promoted, and the color of the pattern is brighter.
The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.
Claims (8)
1. A faucet coating decoration process is characterized in that: the method comprises the following steps:
(1) carrying out rough treatment on the surface of the faucet blank, removing oil and cleaning;
(2) spraying a layer of primer on the surface of the faucet blank subjected to surface treatment, and curing; wherein the primer is oily or aqueous polyurethane resin;
(3) water-transferring the prefabricated coating film texture on the surface of the faucet priming paint to form a texture decoration layer;
(4) spraying finish paint on the texture decoration layer obtained in the step (3); wherein the fineness of the finish paint is 200-400 meshes;
(5) polishing the surface of the finish paint by using sand paper, spraying a transparent nano coating, and performing heat treatment at 80 ℃ for 30-60min to prepare a finished product; wherein the transparent nano coating is made of silicon-aluminum sol nano coating, the fineness of the transparent nano coating is 200-400 meshes, and an air pressure spray gun with the aperture of 1.0-1.2mm is adopted for spraying.
2. The faucet coating decoration process of claim 1, wherein: the water transfer printing of the coating film texture on the surface of the faucet priming paint comprises the following steps:
a. making the designed decorative texture into a water transfer printing coating film;
b. cutting the water transfer printing coating film according to the requirement, and spreading the film on a constant-temperature water surface, wherein the water temperature is controlled to be 25 +/-5 ℃, and the PH value is neutral;
c. spraying an activating agent;
d. transferring the texture of the coating film to the surface of the primer of the faucet through water transfer printing operation, and washing and drying to form a texture decorative layer;
c. and spraying finish paint on the surface of the texture decoration layer by using an air pressure spray gun with the aperture of 0.8-1.2 mm.
3. The faucet coating decoration process of claim 2, wherein: the activator is prepared by mixing benzene substances, lipid substances, alcohol substances and white spirit.
4. The faucet coating decoration process of claim 2, wherein: the finish paint is oily or aqueous polyurethane resin, and the fineness of the primer paint is 200-400 meshes.
5. The faucet coating decoration process of claim 2, wherein: the washing time is 2-5min, the drying temperature is 80-100 ℃, and the drying time is 30-60 min.
6. The faucet coating decoration process of claim 2, wherein: the surface of the finish paint is polished by sand paper, and the sand paper is 600-1000 meshes.
7. The faucet coating decoration process of claim 1, wherein: the rough treatment in the step (1) is carried out by adopting 220-800 mesh sand blasting or/and 120-400 mesh sand blasting.
8. The faucet coating decoration process of claim 1, wherein: the thickness of the primer is 20-35 μm.
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| CN109648258A (en) * | 2018-12-05 | 2019-04-19 | 佛山市酷狄五金有限公司 | A kind of stainless steel vacuum cup surface lacquer technique |
| CN110373058A (en) * | 2019-07-26 | 2019-10-25 | 徐成业 | A kind of noctilucence tap and its manufacturing method |
| CN111516409A (en) * | 2020-05-06 | 2020-08-11 | 聊城市高力金属材料有限公司 | Surface repairing process for elevator door pocket |
| CN112757829A (en) * | 2020-12-31 | 2021-05-07 | 苏州欧普照明有限公司 | Marble texture coating, preparation method thereof, lamp fitting and lamp |
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| CN102666383B (en) * | 2009-11-16 | 2014-07-09 | 日挥触媒化成株式会社 | Process for production of silica-alumina sol, silica-alumina sol, coating agent for formation of transparent coating film which comprises the sol, and substrate having transparent coating film attached thereto |
| CN103862902B (en) * | 2012-12-11 | 2016-12-21 | 黄北江 | A kind of water transfer coating film and preparation method thereof, covering surface method |
| CN103144483A (en) * | 2013-03-26 | 2013-06-12 | 梁慧娴 | Water transfer printing manufacturing technique applied to sanitary products |
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