CN112371466A - Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp - Google Patents
Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp Download PDFInfo
- Publication number
- CN112371466A CN112371466A CN202011271646.5A CN202011271646A CN112371466A CN 112371466 A CN112371466 A CN 112371466A CN 202011271646 A CN202011271646 A CN 202011271646A CN 112371466 A CN112371466 A CN 112371466A
- Authority
- CN
- China
- Prior art keywords
- coating
- primer
- acrylic resin
- drying
- thermoplastic acrylic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
Images
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
- 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
- B05D5/061—Special surface effect
- B05D5/062—Wrinkled, cracked or ancient-looking effect
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
- B05D7/26—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 for applying particular liquids or other fluent materials synthetic lacquers or varnishes
-
- 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
- B05D7/52—Two layers
- B05D7/53—Base coat plus clear coat type
- B05D7/534—Base coat plus clear coat type the first layer being let to dry at least partially before applying the second layer
-
- 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
- B05D7/52—Two layers
- B05D7/53—Base coat plus clear coat type
- B05D7/536—Base coat plus clear coat type each layer being cured, at least partially, separately
-
- 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
- C09D101/00—Coating compositions based on cellulose, modified cellulose, or cellulose derivatives
- C09D101/08—Cellulose derivatives
- C09D101/10—Esters of organic acids
- C09D101/14—Mixed esters, e.g. cellulose acetate-butyrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D5/002—Priming paints
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a preparation method of a three-dimensional crack coating, the three-dimensional crack coating, a lamp fitting and a lamp. The preparation method comprises the following steps: coating a primer on a substrate; drying the primer for the first time; coating a finish paint on the primer, wherein the shrinkage ratio of the primer to the finish paint is more than or equal to 200; and drying the finish paint for the second time to obtain the three-dimensional crack coating on the substrate. By utilizing different shrinkage rates of the primer and the finish paint, the finish paint cracks to form natural crack textures with different shapes after drying, so that the three-dimensional crack coating is obtained. The coating prepared by the preparation method provided by the invention has natural and various textures, and is good in three-dimensional effect and strong in texture. Moreover, the preparation method has the advantages of simple process, low cost and wide application range.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a preparation method of a three-dimensional crack coating, the three-dimensional crack coating prepared by the preparation method, a lamp fitting with the three-dimensional crack coating and a lamp comprising the lamp fitting.
Background
In the prior art, the surface of a workpiece of a lamp product is generally processed by a transfer printing process (such as water transfer printing, thermal transfer printing, gold stamping, etc.) to obtain a coating with appearance texture similar to marbling, wood grain, etc. However, the coating obtained by treating the surface of the workpiece by the transfer printing process has smooth texture and pattern, no unevenness, no stereoscopic impression and poor texture. In addition, these transfer processes are complicated in process and high in cost.
Disclosure of Invention
In view of the above problems, the present invention has been made in order to provide a method of preparing a three-dimensional crack coating, a lamp fitting and a lamp that overcome or at least partially solve the above problems.
The invention aims to provide a preparation method of a three-dimensional crack coating, which can form a coating with different crack textures and good three-dimensional effect and has simple process.
It is a further object of the present invention to control the width and uniformity of the cracks to enhance the aesthetic appearance of the coating.
According to an aspect of an embodiment of the present invention, there is provided a method for preparing a three-dimensional crack coating, including:
coating a primer on a substrate;
drying the primer for the first time;
coating a finish paint on the primer, wherein the shrinkage ratio of the primer to the finish paint is more than or equal to 200;
and drying the finish paint for the second time to obtain the three-dimensional crack coating on the substrate.
Optionally, the shrinkage ratio of the primer to the topcoat is 200-500.
Optionally, the primer has a thickness of 10-16 μm and the topcoat has a thickness of 9-16 μm.
Optionally, the temperature of the first drying is 55-60 deg.C, and the time of the first drying is 2-4 min.
Optionally, the temperature of the second drying is 70-80 deg.C, and the time of the second drying is 1-3 min.
Optionally, the primer comprises by mass: 60-80% of first mixed thermoplastic acrylic resin, 1-2% of flatting agent, 0.5-1% of defoaming agent and 18.5-38.5% of first solvent.
Optionally, the first mixed thermoplastic acrylic resin comprises a first thermoplastic acrylic resin, a polyethylene modified thermoplastic acrylic resin, and cellulose acetate butyrate in a mass ratio of (40-45): (20-25): (5-15).
Optionally, the topcoat includes a color filler.
Optionally, the top coat comprises by mass: 55-70% of second mixed thermoplastic acrylic resin, 26-37% of coloring filler, 1-2% of leveling agent, 0.5-1% of defoaming agent, 1-1.5% of dispersing agent and 1.5-16.5% of second solvent.
Alternatively, the second mixed thermoplastic acrylic resin includes a second thermoplastic acrylic resin and a polyphenylene ether-modified thermoplastic acrylic resin, and the mass ratio of the second thermoplastic acrylic resin to the polyphenylene ether-modified thermoplastic acrylic resin is (25-30): (30-35).
Optionally, the coloring filler comprises 25-35% by mass of titanium dioxide and 1-2% by mass of carbon black based on the mass of the finish paint.
According to another aspect of the embodiments of the present invention, there is also provided a three-dimensional crack coating prepared according to the method for preparing a three-dimensional crack coating described in any one of the preceding paragraphs.
According to yet another aspect of the embodiments of the present invention, there is also provided a lamp accessory including:
a substrate; and
a coating disposed on the substrate;
the coating is a three-dimensional crack coating according to the foregoing.
Optionally, the light fitting comprises a bezel, a face ring or a panel.
According to a further aspect of the embodiments of the present invention, there is also provided a luminaire including the luminaire accessory described above.
Optionally, the luminaire comprises a ceiling lamp.
According to the preparation method of the three-dimensional crack coating, the primer and the finish paint are coated on the substrate in sequence, the shrinkage ratio of the primer to the finish paint is larger than or equal to 200, and the finish paint cracks to form natural crack textures in different shapes after being dried by utilizing the different shrinkage ratios of the primer and the finish paint, so that the three-dimensional crack coating is obtained. The coating prepared by the preparation method provided by the invention has natural and various textures, and is good in three-dimensional effect and strong in texture. Moreover, the preparation method has the advantages of simple process, low cost and wide application range.
Further, by properly selecting the thickness of the primer and the finish paint and/or the drying time of the primer and the finish paint, the width and the uniformity of cracks of the coating can be effectively controlled, so that the aesthetic property of the coating is improved.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 shows a schematic flow diagram of a method for producing a three-dimensional crack coating according to an embodiment of the invention;
FIG. 2 shows a schematic external view of a three-dimensional crack coating prepared according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a lamp accessory according to an embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In order to solve or at least partially solve the technical problem, the embodiment of the invention provides a preparation method of a three-dimensional crack coating.
Fig. 1 shows a schematic flow diagram of a method for producing a three-dimensional crack coating according to an embodiment of the invention. Referring to fig. 1, the preparation method may include at least the following steps S10 to S40.
Step S10: a primer is applied to the substrate.
The substrate may be a metal substrate or a plastic substrate, and is selected according to the actual application requirements, which is not specifically limited in the present invention. The shape of the substrate can also be selected according to the requirements of the actual application, for example, ring shape, flat plate shape, etc.
Step S20: the primer is dried for the first time.
Step S30: and coating a finishing paint on the primer, wherein the shrinkage ratio of the primer to the finishing paint is more than or equal to 200.
Step S40: and drying the finish paint for the second time to obtain the three-dimensional crack coating on the substrate.
According to the preparation method of the three-dimensional crack coating, the primer and the finish paint are coated on the substrate in sequence, the shrinkage ratio of the primer to the finish paint is larger than or equal to 200, and the finish paint cracks to form natural crack textures in different shapes after being dried by utilizing the different shrinkage ratios of the primer and the finish paint, so that the three-dimensional crack coating is obtained.
In addition, the preparation method provided by the embodiment of the invention has the advantages of simple process, no need of special equipment such as an image input and output device and an intaglio in a transfer printing process, low cost and wide application range.
Fig. 2 shows a schematic appearance of a three-dimensional crack coating prepared according to an embodiment of the present invention. As shown in FIG. 2, the top coat dried and cracked to form natural cracks, and the three-dimensional effect was prominent and the texture was excellent.
The scheme of the invention utilizes the difference of the shrinkage rates between the primer and the finish paint to form the cracks, and the larger the shrinkage rate ratio of the primer to the finish paint is, the larger the area of the cracks and the width of the cracks are. Preferably, the shrinkage ratio of the primer to the topcoat may be in the range of 200-500. For example, in some embodiments, the shrinkage of the primer may be controlled in the range of 0.2% to 0.6%, the shrinkage of the topcoat may be controlled in the range of 0.0005% to 0.003%, and the shrinkage ratio of the primer to the topcoat is in the range of 200-. Under the condition, the surface of the coating generates cracks on 100 percent, the width of the cracks is moderate (for example, the width of the cracks is in the range of 1-2 mm), and the appearance effect and the texture of the coating are better.
Further, the width and uniformity of cracks in the coating can also be controlled by controlling the thickness of the primer and topcoat. In one embodiment of the invention, the thickness of the primer may be in the range of 10-16 μm, preferably in the range of 10-15 μm. The thickness of the topcoat may be in the range from 9 to 16 μm, preferably in the range from 10 to 15 μm. It should be noted that in the embodiments of the present invention, there is no fixed size relationship between the thickness of the primer and the thickness of the topcoat, that is, the thickness of the primer may be greater than, equal to, or less than the thickness of the topcoat. By controlling the thicknesses of the primer and the finish paint within proper ranges, crack textures with required effects can be obtained on the surface of the coating, particularly when the thickness of the primer is controlled within the range of 10-15 mu m and the thickness of the finish paint is controlled within the range of 10-15 mu m, cracks can be generated on 100% of the surface of the coating, the width of the cracks is moderate (for example, the width of the cracks is within the range of 1-2 mm), the cracks are uniformly distributed, and the attractiveness of the coating is improved.
In addition, the width and uniformity of cracks of the coating can be adjusted by controlling the drying process of the primer and the finish paint. The primer and the topcoat can be dried in a natural drying or baking drying manner. In the bake drying mode, the temperature for the first drying of the primer and the temperature for the second drying of the topcoat may be set depending on the properties of the primer and topcoat used. In addition, the drying time of the primer and topcoat can also have an effect on the size (width) and uniformity of the crack. At the proper baking and drying temperature, the time for the first drying of the primer is preferably controlled to be 2-4min, and the time for the second drying of the finishing coat is preferably controlled to be 1-3 min. Under the drying condition, the cracks with proper and uniform width can be obtained, and the aesthetic property of the coating is improved.
In one embodiment of the present invention, the primer used in step S10 may include, by mass: 60-80% of first mixed thermoplastic acrylic resin, 1-2% of flatting agent, 0.5-1% of defoaming agent and 18.5-38.5% of first solvent. It will be appreciated that the amount of first solvent used will depend on the amount of other ingredients in the primer to make up to 100%.
The first hybrid thermoplastic acrylic resin may include a first thermoplastic acrylic resin, a polyethylene modified thermoplastic acrylic resin, and cellulose acetate butyrate. In a specific embodiment, the first thermoplastic acrylic resin has a solids content of 50% and a glass transition temperature (Tg) of 40 ℃. The solid content of the polyethylene modified thermoplastic acrylic resin is 60 percent, and the Tg is 50 ℃.
Preferably, the mass ratio of the first thermoplastic acrylic resin, the polyethylene modified thermoplastic acrylic resin and the cellulose acetate butyrate may be (40-45): (20-25): (5-15). More preferably, the mass ratio of the first thermoplastic acrylic resin, the polyethylene modified thermoplastic acrylic resin, and the cellulose acetate butyrate may be 40:25: 10. By selecting the resin with the components and the proportion, the crack effect of the coating can be enhanced, and the attractiveness of the coating is improved.
The leveling agent and the defoaming agent can be selected from the leveling agents and the defoaming agents commonly used in resin-based coatings on the market, and the invention is not limited to this. Butyl acetate and the like can be used as the first solvent.
Further, in the case of using the primer including the above-mentioned first mixed thermoplastic acrylic resin, the temperature of the first drying may be set at 55 to 60 ℃ accordingly.
In one embodiment of the present invention, a color filler may be included in the topcoat. Different coloring fillers can endow the finish paint with different colors, and cracks with different colors can be obtained by selecting the coloring fillers with different colors. Specifically, the coloring filler may include toner, metal powder, and the like. The selection of the particular coloring filler is not particularly limited in the present invention. By properly selecting the coloring filler in the finish paint, the color of the finish paint can be changed, thereby enhancing the color diversity of the prepared three-dimensional crack coating.
In one embodiment, the topcoat used in step S30 may include, by mass: 55-70% of second mixed thermoplastic acrylic resin, 26-37% of coloring filler, 1-2% of leveling agent, 0.5-1% of defoaming agent, 1-1.5% of dispersing agent and 1.5-16.5% of second solvent. It will be appreciated that the amount of second solvent used will depend on the amount of other ingredients in the topcoat to make up to 100%.
The second mixed thermoplastic acrylic resin may include a second thermoplastic acrylic resin and a polyphenylene ether-modified thermoplastic acrylic resin. In a specific embodiment, the second thermoplastic acrylic resin has a solids content of 60% and a glass transition temperature (Tg) of 70 ℃. The solid content of the polyphenylene ether-modified thermoplastic acrylic resin was 70% and the Tg was 80 ℃.
Preferably, the mass ratio of the second thermoplastic acrylic resin to the polyphenylene ether-modified thermoplastic acrylic resin may be (25-30): (30-35). More preferably, the mass ratio of the second thermoplastic acrylic resin and the polyphenylene ether-modified thermoplastic acrylic resin may be 25: 30. By selecting the resin with the components and the proportion, the crack effect of the coating can be enhanced, and the attractiveness of the coating is improved.
The leveling agent and the defoaming agent can be commonly used in resin-based coatings on the market. The second solvent may include butyl acetate, ethyl acetate, and isopropanol. The mass ratio of butyl acetate, ethyl acetate and isopropanol may be 7.5:5: 5.
Further, in the case of using a top coat comprising the above-mentioned second mixed thermoplastic acrylic resin, the temperature of the second drying may be set at 70 to 80 ℃ accordingly.
In one embodiment, the coloring filler can comprise titanium dioxide and carbon black, so that the finish paint presents grey with good texture, and the aesthetic property of the coating is improved. Specifically, the color filler can comprise 25-35% of titanium dioxide and 1-2% of carbon black by mass based on the mass of the finish (namely 100%).
In one embodiment of the present invention, the primer and topcoat may be applied by spraying. The spray coating is a coating method of dispersing materials into uniform and fine droplets by a spray gun or a disc atomizer with the aid of pressure or centrifugal force and applying the droplets on the surface of an object to be coated. By using the spraying mode, the coating uniformity of the priming paint and the finish paint can be ensured while the high production efficiency is ensured. Specifically, the spraying of the primer and the topcoat may be performed under the following conditions: the spraying pressure is 0.3-0.6MPa, the spraying distance (i.e. the distance between the nozzle of the spray gun and the surface of the substrate to be coated) is 250-300mm, and the spraying flow rate (i.e. the flow rate of the sprayed primer or finish paint) is 30-60g/min, so as to ensure better spraying effect.
In one embodiment of the present invention, the substrate may be further pre-processed before step S10. The substrate is cleaned by pretreating the substrate so as to prepare for subsequent coating and ensure the performance of the subsequently prepared three-dimensional crack coating.
Specifically, the pretreatment of the substrate may include steps of degreasing, removing dust, and the like. In the oil removing step, the spinning cloth can be used for dipping an oil removing agent to wipe the substrate for oil removal. The woven cloth is dust-free woven cloth subjected to dust removal treatment. The oil removing agent may be, for example, isopropyl alcohol. The dust on the substrate can be removed by using an electrostatic gun at a pressure of 0.6 to 1.0Pa in the dust removing step.
The following embodiments of the method for preparing a three-dimensional crack coating according to the present invention are illustrated by specific examples, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example one
Step 1: and (4) removing oil. And (3) degreasing the substrate by using isopropanol as a degreasing agent.
Step 2: and (5) removing dust. And (3) removing dust from the substrate by using an electrostatic gun under the pressure of 0.6-1.0 Pa.
And 3, step 3: and spraying a primer. Spraying 10 mu m thick primer on the surface of the substrate under the conditions of spraying pressure of 0.3-0.6MPa, spraying distance of 250-300mm and spraying flow rate of 30-60 g/min. The composition of the primer is as described above.
And 4, step 4: and (5) drying for the first time. The primer was dried at 55 ℃ for 4 min.
And 5, step 5: and spraying finish paint. Spraying finish paint with the thickness of 15 mu m on the primer under the conditions that the spraying pressure is 0.3-0.6MPa, the spraying distance is 250-300mm and the spraying flow rate is 30-60 g/min. The composition of the topcoat is as described previously. The shrinkage ratio of the primer to the topcoat was 200.
And 6, step 6: and (5) drying for the second time. Drying at 70 deg.C for 3min to dry and solidify the finish. Due to the difference of the shrinkage rates of the primer and the finish paint, the finish paint is cracked after being cured to form natural crack textures, and thus the three-dimensional crack coating is obtained.
The three-dimensional crack coating prepared by the embodiment has the following performance indexes:
(1) according to the GB9286-98 hundred-grid test, the adhesive force of the three-dimensional crack coating is qualified.
(2) According to the paint film hardness test of GB/T6739-2006, the hardness of the three-dimensional crack coating is qualified.
(3) The alternating resistance is qualified. The alternating damp-heat test is carried out under the alternating conditions of 55 ℃/95% RH and 25 ℃/80% RH, the high-temperature and low-temperature states are respectively stored for 11.5h, the temperature switching time is 60min, and the power is supplied for 1h at 25 ℃ every day. After 6 cycles, the three-dimensional crack coating has no defects of bubbling, falling and the like, and the color difference delta E is less than or equal to 2.
(4) The thermal shock resistance is qualified. The samples were stored for 15 cycles at-20 ℃ and 80 ℃ without being lit indoors for 1 h. Storing at-40 deg.C and 80 deg.C for 1h respectively without lighting outdoors, and performing 20 cycles. For the plastic-coated aluminum structural part, the plastic-coated aluminum structural part is stored for 20min at the temperature of minus 20 ℃ and 120 ℃ respectively, and 50 cycles are carried out. Wherein the temperature conversion time is less than 30 min. After the test is finished, the three-dimensional crack coating has no defects of bubbling, falling and the like, and the color difference delta E is less than or equal to 2.
Example two
The present embodiment is different from the first embodiment only in that:
the spraying thickness of the primer is 13 mu m, the spraying thickness of the finish paint is 13 mu m, the shrinkage ratio of the primer to the finish paint is 500, the temperature and the time of the first drying are respectively 60 ℃ and 2min, and the temperature and the time of the second drying are respectively 80 ℃ and 1 min. The three-dimensional crack coating prepared by the embodiment passes through a Baige test, a paint film hardness test, a salt spray test, an alternating wet heat test and a cold and heat shock resistance test, and the adhesive force, the hardness, the corrosion resistance, the alternating resistance and the cold and heat shock resistance are all qualified.
EXAMPLE III
The present embodiment is different from the first embodiment only in that:
the spraying thickness of the primer is 16 mu m, the spraying thickness of the finish paint is 9 mu m, the shrinkage ratio of the primer to the finish paint is 300, the temperature and the time of the first drying are respectively 60 ℃ and 3min, and the temperature and the time of the second drying are respectively 75 ℃ and 2 min. The three-dimensional crack coating prepared by the embodiment passes through a Baige test, a paint film hardness test, a salt spray test, an alternating wet heat test and a cold and heat shock resistance test, and the adhesive force, the hardness, the corrosion resistance, the alternating resistance and the cold and heat shock resistance are all qualified.
The test data of the above embodiment shows that the three-dimensional crack coating prepared by the preparation method of the embodiment of the invention has excellent performance.
Based on the same technical concept, the embodiment of the invention also provides the three-dimensional crack coating prepared by the preparation method of the three-dimensional crack coating according to any embodiment or combination of embodiments. The three-dimensional crack coating has different crack textures, good three-dimensional effect, various colors, excellent performance and wide application range.
Based on the same technical concept, the embodiment of the invention also provides a lamp accessory. Fig. 3 shows a schematic structural diagram of the lamp accessory 100 according to an embodiment of the invention. Referring to fig. 3, a light fixture accessory 100 may generally include a substrate 101, and a coating 102 disposed on the substrate 101. The coating 102 is a three-dimensional crack coating 102 according to any embodiment or combination of embodiments described above. It should be noted that fig. 3 is not drawn to scale. By arranging the three-dimensional crack coating 102 on the substrate 101 of the lamp accessory 100, the lamp accessory 100 can be endowed with good appearance, so that the lamp accessory 100 has the appearance effects of natural crack texture, good three-dimensional effect and good texture, and is more beautiful.
The light fitting 100 may be a bezel, face ring, faceplate, etc. of a light fixture. Accordingly, for a bezel or a face ring, the substrate 101 may be an annular (specifically, circular ring shaped) substrate. For a panel, the substrate 101 may be a plate-like substrate.
Based on the same technical concept, the embodiment of the invention also provides a lamp. The lamp can comprise the lamp accessory described in any embodiment or combination of embodiments above. Specifically, the lamps and lanterns can be ceiling lamp, like ultra-thin ceiling lamp, decorative ceiling lamp etc..
According to any one or a combination of multiple optional embodiments, the embodiment of the present invention can achieve the following advantages:
according to the preparation method of the three-dimensional crack coating, the primer and the finish paint are coated on the substrate in sequence, the shrinkage ratio of the primer to the finish paint is larger than or equal to 200, and the finish paint cracks to form natural crack textures in different shapes after being dried by utilizing the different shrinkage ratios of the primer and the finish paint, so that the three-dimensional crack coating is obtained. The coating prepared by the preparation method provided by the invention has natural and various textures, and is good in three-dimensional effect and strong in texture. Moreover, the preparation method has the advantages of simple process, low cost and wide application range.
Further, by properly selecting the thickness of the primer and the finish paint and/or the drying time of the primer and the finish paint, the width and the uniformity of cracks of the coating can be effectively controlled, so that the aesthetic property of the coating is improved.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (16)
1. A preparation method of a three-dimensional crack coating is characterized by comprising the following steps:
coating a primer on a substrate;
carrying out primary drying on the primer;
coating a finish paint on the primer paint, wherein the shrinkage ratio of the primer paint to the finish paint is more than or equal to 200;
and drying the finish paint for the second time to obtain the three-dimensional crack coating on the substrate.
2. The method as claimed in claim 1, wherein the shrinkage ratio of the primer to the topcoat is 200-500.
3. The method of claim 1, wherein the primer has a thickness of 10 to 16 μm and the topcoat has a thickness of 9 to 16 μm.
4. The method according to claim 1, wherein the temperature of the first drying is 55-60 ℃ and the time of the first drying is 2-4 min.
5. The method according to claim 1, wherein the temperature of the second drying is 70 to 80 ℃ and the time of the second drying is 1 to 3 min.
6. The production method according to claim 1, wherein the primer includes, by mass: 60-80% of first mixed thermoplastic acrylic resin, 1-2% of flatting agent, 0.5-1% of defoaming agent and 18.5-38.5% of first solvent.
7. The method of claim 6, wherein the first mixed thermoplastic acrylic resin comprises a first thermoplastic acrylic resin, a polyethylene-modified thermoplastic acrylic resin, and cellulose acetate butyrate at a mass ratio of (40-45): (20-25): (5-15).
8. The method of claim 1, wherein the topcoat includes a color filler.
9. The preparation method according to claim 8, wherein the top coat comprises, by mass: 55-70% of second mixed thermoplastic acrylic resin, 26-37% of coloring filler, 1-2% of leveling agent, 0.5-1% of defoaming agent, 1-1.5% of dispersing agent and 1.5-16.5% of second solvent.
10. The production method according to claim 9, wherein the second mixed thermoplastic acrylic resin includes a second thermoplastic acrylic resin and a polyphenylene ether-modified thermoplastic acrylic resin in a mass ratio of (25-30) to (30-35).
11. The production method according to claim 9, wherein the coloring filler comprises 25 to 35% by mass of titanium dioxide and 1 to 2% by mass of carbon black, based on the mass of the top coat.
12. A three-dimensional crack coating prepared according to the method for preparing a three-dimensional crack coating of any one of claims 1 to 11.
13. A light fitting, comprising:
a substrate; and
a coating disposed on the substrate;
characterized in that the coating is a three-dimensional crack coating according to claim 12.
14. The light fitting of claim 13, wherein the light fitting comprises a bezel, a face ring, or a panel.
15. A luminaire comprising a luminaire accessory according to claim 13 or 14.
16. The light fixture of claim 15, wherein the light fixture comprises a ceiling light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271646.5A CN112371466A (en) | 2020-11-13 | 2020-11-13 | Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011271646.5A CN112371466A (en) | 2020-11-13 | 2020-11-13 | Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112371466A true CN112371466A (en) | 2021-02-19 |
Family
ID=74582611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011271646.5A Pending CN112371466A (en) | 2020-11-13 | 2020-11-13 | Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112371466A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582552A (en) * | 2021-07-15 | 2021-11-02 | Oppo广东移动通信有限公司 | Manufacturing method of texture substrate, texture substrate and electronic equipment |
| CN115722429A (en) * | 2022-12-15 | 2023-03-03 | 紫荆花涂料（上海）有限公司 | Crack-controllable coating and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031049A (en) * | 2009-09-30 | 2011-04-27 | 比亚迪股份有限公司 | Crackle paint and preparation method thereof |
| CN103952063A (en) * | 2014-04-22 | 2014-07-30 | 无锡宇盛厨卫有限公司 | Waterborne crackle paint |
-
2020
- 2020-11-13 CN CN202011271646.5A patent/CN112371466A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031049A (en) * | 2009-09-30 | 2011-04-27 | 比亚迪股份有限公司 | Crackle paint and preparation method thereof |
| CN103952063A (en) * | 2014-04-22 | 2014-07-30 | 无锡宇盛厨卫有限公司 | Waterborne crackle paint |
Non-Patent Citations (1)
| Title |
|---|
| 苹果日报地产中心: "《家庭装修建材选购大全》", 30 April 2016, 江西科学技术出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582552A (en) * | 2021-07-15 | 2021-11-02 | Oppo广东移动通信有限公司 | Manufacturing method of texture substrate, texture substrate and electronic equipment |
| CN113582552B (en) * | 2021-07-15 | 2023-10-10 | Oppo广东移动通信有限公司 | Manufacturing method of texture substrate, texture substrate and electronic equipment |
| CN115722429A (en) * | 2022-12-15 | 2023-03-03 | 紫荆花涂料（上海）有限公司 | Crack-controllable coating and preparation method thereof |
| US12129401B2 (en) | 2022-12-15 | 2024-10-29 | Bauhinia Coatings Manufacturing (Shanghai) Co., LTD. | Cracks-controllable coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112371466A (en) | Three-dimensional crack coating, preparation method thereof, lamp fitting and lamp | |
| CN102139264A (en) | Polyvinylidene fluoride (PVDF) coating process for aluminum curtain wall | |
| CN109513592A (en) | A kind of automobile dumb light part spraying method | |
| RU2166381C2 (en) | Method for coating and decorative finishing of surfaces | |
| CN111992469A (en) | Three-dimensional pattern coating, preparation method thereof, lamp fitting and lamp | |
| CN102580903A (en) | Production method of single-side double-color coated steel plates for household electric appliances | |
| CN103213416B (en) | Gold stamping method for improving mirror surface effect, ultraviolet (UV) intermediate coat and UV finishing coat | |
| CN102555656A (en) | Processing method of pearly-lustre canvas | |
| CN111974657A (en) | Preparation method of colorful coating, colorful coating and lamp fitting | |
| US20040091629A1 (en) | Coated substrate with metallic surface impression, method for adhesively coating substrates with corrosive optical layers and use of said coated substrate and products obtained from a method for adhesively coating with corrosive optical layers | |
| CN114904742A (en) | Open-effect floor MEC curing system coating process and product thereof | |
| CN1320964C (en) | Automatic color spraying technique for PVC Shaped section | |
| CN111822299A (en) | Process for producing antique wood grain color | |
| CN111001552A (en) | Aluminum profile spraying process | |
| CN100436557C (en) | Stone-imitating spray coating | |
| CN114425918B (en) | Leather transfer film with self-repairable surface layer and preparation method and use method thereof | |
| CN112757829A (en) | Marble texture coating, preparation method thereof, lamp fitting and lamp | |
| CN216193617U (en) | Vacuum aluminum-plated leather | |
| CN116871140B (en) | Method for preparing coating on nonmetallic surface by vacuum coating process | |
| CN115140952B (en) | Coating film brightening method for dyed glass | |
| CN213377636U (en) | Wood texture imitation aluminum alloy product | |
| CN113714066A (en) | Color-changeable workpiece and preparation method and system thereof | |
| CN112300646A (en) | Preparation method of imitation metal coating, lamp fitting and lamp | |
| KR100397799B1 (en) | Surface treating method for illuminator | |
| JPS5929108B2 (en) | Manufacturing method of metal plated body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210219 |
|
| RJ01 | Rejection of invention patent application after publication |