CN117884322A - Method for forming pattern on curved substrate, curved substrate and vehicle - Google Patents
Method for forming pattern on curved substrate, curved substrate and vehicle Download PDFInfo
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- CN117884322A CN117884322A CN202311857858.5A CN202311857858A CN117884322A CN 117884322 A CN117884322 A CN 117884322A CN 202311857858 A CN202311857858 A CN 202311857858A CN 117884322 A CN117884322 A CN 117884322A
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Abstract
The invention relates to a method for forming a pattern on a curved substrate, a curved substrate and a vehicle. The method for forming the pattern on the curved substrate comprises the following steps: attaching a static film on the surface of a curved substrate, wherein the static film is provided with a hollowed pattern area; distributing a functional coating on the pattern area, wherein the functional coating comprises a functional material and an ultraviolet curing coating; and (3) carrying out ultraviolet curing on the functional coating to form a pattern on the curved substrate. The method for forming the pattern on the curved substrate utilizes the flexibility of the static film, so that the lamination can be carried out on the surfaces of substrates with different curvatures, the precision is improved, and compared with a traditional printing mode, the method is simple in process and low in cost, and large-area production can be realized. In addition, the functional material is mixed with the ultraviolet curing coating, so that the functional coating is quickly cured under the ultraviolet condition, the time consumption is short, and the efficiency is high.
Description
Technical Field
The present invention relates to the field of curved surface materials, and in particular, to a method for forming a pattern on a curved surface substrate, and a vehicle.
Background
With the development of technology, the demands for various functions such as comfort, aesthetic appearance, and atmosphere of vehicles are increasing, which promotes the application of a large number of functional materials such as thermochromic materials, photochromic materials, atmosphere lamp inks, etc. to the glass of vehicles. These functional materials are usually doped in polymers, sprayed or printed on the inner surface of a glass interlayer, and made into beautiful pattern patterns, so that the multifunction of the glass is realized, and the riding experience of drivers and passengers is improved. However, such functional materials are generally not resistant to high temperatures and therefore need to be printed after the vehicle glass is baked and bent to shape.
Currently, common ways to print patterns on curved glass include screen printing, ink jet printing, transfer printing, and pad printing processes. The screen printing is to press the glass glaze on the glass surface by using the prepared curved screen plate. The printing mode is difficult to fixedly support glass workpieces with different bending degrees, so that the efficiency in actual production is lower, and different carriers are designed for glass with different bending degrees, so that the cost is higher. The transfer printing technology is to print the pattern on the film and then transfer the pattern on the film to the glass, so that the glass with different shapes can be printed, but the precision is lower and the large-area production on the glass of the vehicle is not facilitated. And the pad printing technology and the jet printing technology are obviously insufficient in precision control for large-area curved surface vehicle glass printing, one-time pad printing needs to be performed for one-time inking, and the efficiency is low.
Disclosure of Invention
Based on this, some embodiments of the present invention provide a method for forming a pattern on a curved substrate, which is efficient, low in cost, and advantageous for improving accuracy, and is suitable for mass production in a large area.
Still further embodiments of the present invention provide a patterned curved substrate and a vehicle including the curved substrate.
A method of forming a pattern on a curved substrate comprising the steps of:
attaching a static film on the surface of a curved substrate, wherein the static film is provided with a hollowed pattern area;
Distributing a functional coating on the pattern area, wherein the functional coating comprises a functional material and an ultraviolet curing coating;
and (3) carrying out ultraviolet curing on the functional coating to form a pattern on the curved substrate.
In some of these embodiments, the functional material satisfies one or several of the following conditions:
(1) The functional material comprises one or more of an atmosphere lamp ink material, a photoluminescent material, a thermochromic material and a photochromic material;
(2) The functional material is coated inside the microcapsule and dispersed in the functional coating in the form of microcapsule.
In some of these embodiments, the functional coating satisfies one or several of the following conditions:
(1) In the functional coating, the mass of the functional material accounts for 5% -15% of the mass of the ultraviolet curing coating;
(2) The viscosity of the ultraviolet curing coating is 5 Pa.s-12 Pa.s.
In some embodiments, before the step of attaching the electrostatic film to the surface of the curved substrate, the method further includes forming a hollowed pattern area on the electrostatic film by using a laser carving and/or a mechanical cutting method.
In some embodiments, the material of the electrostatic film comprises one or both of polyethylene and polyvinyl chloride.
In some embodiments, in the step of applying the functional coating in the pattern area, a doctor blade method is used to make the thickness of the functional coating consistent with the thickness of the electrostatic film.
In some of these embodiments, the step of uv curing the functional coating is followed by a step of removing the electrostatic film.
In some of these embodiments, the uv curing time is less than or equal to 1 minute.
A curved substrate is obtained by processing the method for forming the pattern on the curved substrate.
A vehicle comprises the curved substrate.
According to the method for forming the pattern on the curved substrate, the electrostatic film provided with the hollowed pattern area is firstly attached to the surface of the curved substrate, and then the functional coating comprising the functional material and the ultraviolet curing coating is distributed on the pattern area, so that the functional coating is cured, and the pattern is formed on the curved substrate. The method utilizes the flexibility of the static film, so that the lamination can be carried out on the surfaces of the substrates with different curvatures, the precision is improved, and compared with the traditional printing mode, the method is simple in process and low in cost, and large-area production can be realized. In addition, the functional material is mixed with the ultraviolet curing coating, so that the functional coating is quickly cured under the ultraviolet condition, the time consumption is short, and the efficiency is high. Therefore, the method has high efficiency and low cost, is favorable for improving the precision and large-area production, and can be applied to printing functional material patterns on the vehicle glass.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a process flow diagram of a method of forming a pattern on a curved substrate in accordance with some embodiments of the invention;
FIG. 2 is a schematic cross-sectional view of the curved substrate after the processing of step S110 in the process flow chart shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the curved substrate after the processing of step S120 in the process flow chart shown in FIG. 1;
fig. 4 is a schematic cross-sectional view of the curved substrate after the processing of step S130 in the process flow chart shown in fig. 1.
Reference numerals illustrate: a static film 210, a pattern region 212, a curved substrate 220, and a functional coating 230.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to specific embodiments that are now described. Preferred embodiments of the invention are given in the detailed description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Unless otherwise indicated or contradicted, terms or phrases used in the present invention have the following meanings:
In the present invention, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, "one or more" means any one, any two or more of the listed items. Wherein "several" means any two or more.
In the present invention, the percentage concentrations referred to refer to the final concentrations unless otherwise specified. The final concentration refers to the ratio of the additive component in the system after the component is added.
The words "preferably," "more preferably," and the like in the present invention refer to embodiments of the invention that may provide certain benefits in some instances. However, other embodiments may be preferred under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
When a range of values is disclosed in the present invention, the range is considered to be continuous and includes the minimum and maximum values of the range, as well as each value between such minimum and maximum values. Further, when a range refers to an integer, each integer between the minimum and maximum values of the range is included. Further, when multiple range description features or characteristics are provided, the ranges may be combined. In other words, unless otherwise indicated, all ranges disclosed herein are to be understood to encompass any and all subranges subsumed therein.
In the invention, the technical characteristics described in an open mode comprise a closed technical scheme composed of the listed characteristics and also comprise an open technical scheme comprising the listed characteristics.
The terms "comprising" and "having" and any variations thereof in embodiments of the present invention are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the described embodiments of the application may be combined with other embodiments.
Referring to fig. 1, a first aspect of the present invention provides a method for forming a pattern on a curved substrate, comprising the following steps S110 to S130:
Step S110: and attaching a static film on the surface of the curved substrate, wherein the static film is provided with a hollowed pattern area.
In some embodiments, the curved substrate comprises curved glass. It is to be understood that in other embodiments, the curved substrate is not limited to curved glass, but may include a substrate having a curvature similar to glass, including, but not limited to, a curved ceramic body, a curved metal or plastic piece, and the like. The above only gives some more specific examples, but is not limited thereto, and any substrate having a curved surface may be used.
In some embodiments, the material of the electrostatic film comprises one or both of polyethylene and polyvinyl chloride. It will be appreciated that the above list only two commonly used electrostatic film materials, but is not limited thereto.
The electrostatic film belongs to a flexible substrate, has an electrostatic adsorption effect, can be well attached to a curved substrate, is suitable for substrates with different bending degrees, and is beneficial to exhausting air.
In some embodiments, prior to step S110, further comprising: and forming a hollowed pattern area on the static film by adopting a laser engraving and/or mechanical cutting mode. The specific pattern area design, such as pattern area size, shape, etc., may be adjusted according to the size, shape, etc., of the pattern to be subsequently formed on the curved substrate. Specific processes of laser engraving and/or mechanical cutting are not particularly limited, and may be common in the art, and will not be described again.
It is to be understood that the thickness of the electrostatic film may be adjusted according to the thickness of the pattern to be formed later, and is not particularly limited herein.
In the conventional process, the electrostatic film is usually used as a non-coated film, and is attached to the surface of the substrate by electrostatic adsorption, so that the electrostatic film is often used as a protective film. In some embodiments of the present invention, the inventor uses electrostatic adsorption and flexibility of the electrostatic film to make the electrostatic film have hollowed pattern areas after laser engraving and/or mechanical cutting treatment, then attaches the electrostatic film to the surface of the curved substrate, and distributes functional coatings on the pattern areas to cure the functional coatings to form patterns on the curved substrate.
In some embodiments, before step S110, a step of cleaning the curved substrate is further included. Dust or other impurities are removed as much as possible by cleaning the curved substrate.
Step S120: and a functional coating is distributed on the pattern area, wherein the functional coating comprises a functional material and an ultraviolet curing coating.
It is understood that in this context, the functional coating may be any size that can be applied, for example, but not limited to, an ink. In particular, in some embodiments, the functional coating may be an ink containing color and hue, and in other embodiments, the functional coating may be free of coloring media, such as clear paint, specifically tailored to the actual scene to which it is to be applied. In some embodiments, the functional coating may be a colored masking layer or a transparent layer.
Specifically, a functional material is mixed with an ultraviolet-curable coating material to prepare a functional coating layer. It is understood that the step of mixing the functional material with the ultraviolet curable coating material is not particularly limited, and the functional material may be uniformly dispersed in the functional coating layer.
In some of these embodiments, the functional material comprises one or more of an ambient light ink material, a photoluminescent material, a thermochromic material, and a photochromic material. It will be appreciated that only a few specific functional materials are given above, but are not limited thereto and that other functional materials commonly used in vehicle glass are also possible.
In some embodiments, the functional material is in a powder form, the functional material being dispersed in the functional coating. In other embodiments, the functional material is encapsulated within microcapsules, dispersed in the functional coating in the form of microcapsules. The functional material is coated in the microcapsule and redispersed in the functional coating, which is beneficial to improving the weather resistance of the functional material. Specifically, the microcapsule includes a core material and a wall material, the core material is a functional material, the wall material is coated on the surface of the core material, and the wall material may be a microcapsule wall material commonly used in the art, which is not particularly limited herein.
In some embodiments, the functional material comprises 5% -15% by mass of the uv curable coating in the functional coating. In a specific example, in the functional coating, the percentage of the mass of the functional material to the mass of the uv-curable coating may be, but is not limited to, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15% or a range consisting of any two of these values.
Specifically, the ultraviolet curing coating can be, but not limited to, ultraviolet curing ink, wherein the ultraviolet curing ink refers to ink which can be completely cured into a film after ultraviolet irradiation, has high curing speed, does not contain an organic solvent, is nontoxic and pollution-free, has good adhesive force after curing, and can be commonly used in the field.
Optionally, in some embodiments, the ultraviolet curable coating has a viscosity of 5pa·s to 12pa·s. It is understood that the viscosity of the above ultraviolet curable coating refers to the viscosity at room temperature, for example, 20 ℃ to 30 ℃. In a specific example, the viscosity of the ultraviolet curable coating material may be, but is not limited to, a range consisting of 5pa·s, 6pa·s, 7pa·s, 8pa·s, 9pa·s, 10pa·s, 11pa·s, 12pa·s, or any two of these values. In the viscosity range, the ultraviolet curing coating is not easy to flow, so that after the functional coating is coated later, the functional coating is not easy to flow, the patterns are not deformed, and the problem that the patterns are deformed possibly after the ink is printed in the traditional ink-jet printing mode is solved. Meanwhile, the viscosity of the ultraviolet curing coating is in the range, and the risk of uneven thickness caused by overlarge fluidity of the ultraviolet curing coating can be reduced.
It will be appreciated that in the preparation of the functional coating and the step of applying the functional coating, no uv irradiation should be ensured to avoid curing of the uv curable coating.
In some embodiments, in the step of applying the functional coating in the pattern area, a doctor blade method is adopted to make the thickness of the functional coating in the pattern area consistent with the thickness of the electrostatic film. By the mode, the thickness of the functional coating can be controlled by regulating and controlling the thickness of the static film, so that the thickness of a pattern formed subsequently is uniform.
Step S130: and (3) carrying out ultraviolet curing on the functional coating to form a pattern on the curved substrate.
In some embodiments, the uv cure time is less than or equal to 1 minute. For example, the time of the ultraviolet curing may be, but is not limited to, 60s, 55s, 50s, 45s, 40s, 35s, 30s, 25s, 20s, 15s, 10s, 5s or a range consisting of any two of these values. The ultraviolet curing coating has the advantage of short curing time, and can be rapidly cured under ultraviolet irradiation, so that the production efficiency is improved.
Through step S130, patterns comprising functional materials are formed on the curved substrate, so that the multifunctional requirements of people on vehicle comfort, aesthetic property, atmosphere and the like are met.
In some embodiments, after the step of uv curing the functional coating, a step of removing the electrostatic film is further included.
In one specific example, the electrostatic film is removed by direct stripping. The electrostatic film is an uncoated film, is attached to the surface of the curved substrate through electrostatic adsorption, has low adhesive force, can be removed through a direct tearing method, can be reused, and has no problem that residual adhesive is difficult to remove.
It should be understood that, although the steps in the flowchart shown in fig. 1 are shown in sequence as indicated by the arrows, the steps are not necessarily performed in the sequence as indicated by the arrows, unless otherwise specifically indicated herein, the execution of the steps is not strictly limited to the order shown, and may be performed in other sequences, and at least some of the steps in fig. 1 may include multiple sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being performed in sequence, but may be performed alternately or alternately with at least some of the other steps or other sub-steps or stages.
Referring to fig. 2, fig. 2 is a schematic cross-sectional view of the curved substrate after the processing in step S110. After the step S110, the electrostatic film 210 is attached to the surface of the curved substrate 220, and the electrostatic film 210 is provided with a hollowed-out pattern area 212.
Referring to fig. 3, fig. 3 is a schematic cross-sectional view of the curved substrate after the processing in step S120. After the processing in step S120, the functional coating 230 is disposed in the pattern area 212, and the thickness of the functional coating 230 is consistent with the thickness of the electrostatic film 210.
Referring to fig. 4, fig. 4 is a schematic cross-sectional view of the curved substrate after the processing in step S130. After the process of step S130, the functional coating 230 is cured to remove the electrostatic film 210, thereby forming a pattern on the curved substrate 220, and the thickness of the pattern is uniform.
It should be understood that fig. 2 to fig. 4 only show schematic cross-sectional views of the curved substrate after the processing of steps S110 to S130, but do not show specific limitations on the shape, size, etc. of the electrostatic film 210, the pattern area 212, and the functional coating 230.
According to the method for forming the pattern on the curved substrate, the electrostatic film provided with the hollowed pattern area is firstly attached to the surface of the curved substrate, and then the functional coating comprising the functional material and the ultraviolet curing coating is distributed on the pattern area, so that the functional coating is cured, and the pattern is formed on the curved substrate. The method utilizes the flexibility of the static film, so that the lamination can be carried out on the surfaces of the substrates with different curvatures, the precision is improved, and compared with the traditional printing mode, the method is simple in process and low in cost, and large-area batch production can be realized. In addition, the functional material is mixed with the ultraviolet curing coating, so that the functional coating is quickly cured under the ultraviolet condition, the time consumption is short, and the efficiency is high. Therefore, the method has high efficiency and low cost, is favorable for improving the precision and large-area production, and can be applied to printing functional material patterns on the vehicle glass.
In addition, the thickness of the functional coating can be adjusted by adjusting the thickness of the static film in the method, so that the thickness of the pattern to be formed is adjusted, the thickness is easy to control, and the thickness of the pattern is uniform. In addition, the hollowed pattern area can be easily formed on the static film through laser engraving and/or mechanical cutting, and then the pattern is formed on the curved substrate after the coating functional coating is cured, so that the shape, the size and the like of the pattern are easy to control and adjust.
The second aspect of the invention provides a curved substrate, which is obtained by the method for forming a pattern on the curved substrate.
The curved substrate is provided with patterns formed by functional materials, and can meet the multifunctional demands of people on vehicle comfort, aesthetic property, atmosphere and the like.
A third aspect of the present invention provides a vehicle comprising a curved substrate as described above.
The curved substrate has patterns formed by functional materials, can be applied to vehicles, and meets the multifunctional requirements of people on comfort, aesthetic property, atmosphere and the like of the vehicles.
In some embodiments, the vehicle includes, but is not limited to, a vehicle, a ship, a yacht, an airplane, and the like. In particular, the vehicle may be, but is not limited to being, a car, a bus, etc.
In some embodiments, the curved substrate is a curved glass. The vehicle comprises the curved glass, or the vehicle comprises laminated glass, and the laminated glass comprises the curved glass. It will be appreciated that the laminated glass may further comprise a second glass substrate, the second glass substrate being connected to the patterned curved substrate by an adhesive layer, the patterned curved substrate having a patterned side facing the second glass substrate. The tie layer may be conventional in the art, such as PVB (polyvinyl butyral), EVA (ethylene vinyl acetate copolymer), and the like.
In some embodiments, the laminated glass may be vehicle glass.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present invention, which facilitate a specific and detailed understanding of the technical solutions of the present invention, but are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. It should be understood that, based on the technical solutions provided by the present invention, those skilled in the art can obtain technical solutions through logical analysis, reasoning or limited experiments, which are all within the protection scope of the appended claims. The scope of the patent is therefore intended to be covered by the appended claims, and the description and drawings may be interpreted as illustrative of the contents of the claims.
Claims (10)
1. A method of forming a pattern on a curved substrate, comprising the steps of:
attaching a static film on the surface of a curved substrate, wherein the static film is provided with a hollowed pattern area;
Distributing a functional coating on the pattern area, wherein the functional coating comprises a functional material and an ultraviolet curing coating;
and (3) carrying out ultraviolet curing on the functional coating to form a pattern on the curved substrate.
2. The method of claim 1, wherein the functional material satisfies one or more of the following conditions:
(1) The functional material comprises one or more of an atmosphere lamp ink material, a photoluminescent material, a thermochromic material and a photochromic material;
(2) The functional material is coated inside the microcapsule and dispersed in the functional coating in the form of microcapsule.
3. The method of forming a pattern on a curved substrate according to claim 1 or 2, wherein the functional coating satisfies one or more of the following conditions:
(1) In the functional coating, the mass of the functional material accounts for 5% -15% of the mass of the ultraviolet curing coating;
(2) The viscosity of the ultraviolet curing coating is 5 Pa.s-12 Pa.s.
4. The method of claim 1, further comprising forming a hollowed-out pattern area on the electrostatic film by laser engraving and/or mechanical cutting prior to the step of attaching the electrostatic film to the surface of the curved substrate.
5. The method of claim 1 or 4, wherein the material of the electrostatic film comprises one or both of polyethylene and polyvinyl chloride.
6. The method of forming a pattern on a curved substrate according to claim 1, wherein in the step of applying the functional coating on the patterned area, a doctor blade method is used to make the thickness of the functional coating uniform with the thickness of the electrostatic film.
7. The method of claim 1, further comprising the step of removing the electrostatic film after the step of uv curing the functional coating.
8. The method of claim 1, wherein the ultraviolet curing time is less than or equal to 1 minute.
9. A curved substrate, characterized by being obtained by being treated by the method for forming a pattern on a curved substrate according to any one of claims 1 to 8.
10. A vehicle comprising the curved substrate of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311857858.5A CN117884322A (en) | 2023-12-29 | 2023-12-29 | Method for forming pattern on curved substrate, curved substrate and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311857858.5A CN117884322A (en) | 2023-12-29 | 2023-12-29 | Method for forming pattern on curved substrate, curved substrate and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN117884322A true CN117884322A (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311857858.5A Pending CN117884322A (en) | 2023-12-29 | 2023-12-29 | Method for forming pattern on curved substrate, curved substrate and vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN117884322A (en) |
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2023
- 2023-12-29 CN CN202311857858.5A patent/CN117884322A/en active Pending
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