Preparation method of high-transparency colorful glass cover plate

Abstract

The invention provides a preparation method of a high-transparency colorful glass cover plate. The preparation method comprises the following steps: S1, preparing raw materials; s2, defoaming is carried out; s3, coating is conducted; s4, curing is conducted; and S5, manufacturing a metal wire drawing surface. Photonic crystal fillers with different particle sizes are compounded with a high-light-transmittance film-forming substance, a curing agent, an auxiliary agent and a solvent, and the colorful water-based paint with high transparency is developed by adjusting the color and the addition amount of the photonic crystal fillers, the addition amount of the high-light-transmittance film-forming substance, matching of the auxiliary agent and the like.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of glass cover plates, and in particular to a method for preparing a high-transparency colorful glass cover plate. Background Art

[0002] In the traditional design concept, the in-vehicle display screen is mainly used to provide visual information to the driver and passengers. However, with the development of the intelligent cockpit of the car, the functional application of the in-vehicle display screen is no longer limited to the development of display effects. At the same time, it is necessary to give it a decorative effect to bring a more enjoyable driving and riding experience. This demand has promoted the development of smart surface technology. Among them, the display glass cover plate is an interface for human-computer interaction. Further enriching its surface decorative effect is an important research direction to expand its functionality. This requires taking into account the high transmittance of the glass cover plate while constructing the color and texture of its surface. At present, the development of the decorative effect of the glass cover plate mainly adopts two technical routes: subtractive color method and additive color method. The subtractive color method is to apply a coating or a film material with a decorative effect on the glass surface, and then use a laser to perform partial peeling to improve the transmittance of the glass cover plate. Its transmittance depends on the proportion of the peeling area. For the additive coloring method, high-transmittance pigments are added to the coating or film material, and then applied or laminated to the surface of the glass cover. When the amount of pigments added is small, it can maintain a high degree of transparency (screen on), but its color covering power is insufficient against a black background (screen off), and the decorative effect is not obvious. In addition, the coloring mechanism of the decorative effects of these two schemes often belongs to the category of chemical colors. When the screen is on, the color of the glass cover will be added to the color of the content displayed on the panel, resulting in a deviation in the color of the displayed screen. Summary of the invention

[0003] 1. Technical problems to be solved by the invention: In view of the above problems and the shortcomings in the field, the present invention provides a method for preparing a high-transparency colorful glass cover, in which photonic crystal fillers of different particle sizes are compounded with a high-transmittance film-forming substance, a curing agent, an additive and a solvent, and a high-transparency colorful water-based coating is developed by adjusting the color and addition amount of the photonic crystal filler, the addition amount of the high-transmittance film-forming substance, the combination of additives, etc. Then, a photonic structural color film with good mechanical properties is constructed on the surface of the glass panel by spraying, scraping, transfer, screen printing, etc., thereby developing a high-transparency colorful glass cover.

[0004] 2. Technical solution: To achieve the above-mentioned purpose, the technical solution provided by the present invention is: a method for preparing a high-transparency colorful glass cover, comprising the following parts by weight: photonic crystal filler: 5-90 parts; film-forming substance: 10-90 parts; curing agent: 5-10 parts; auxiliary agent: 0-5 parts; solvent: 0-20 parts.

[0005] The method for preparing a high-transparency colorful glass cover according to claim 1 is characterized in that: the photonic crystal filler is an organic or inorganic photonic crystal material with different structural colors or irregular shapes, such as one or more of one-dimensional, two-dimensional or three-dimensional photonic crystal materials; The film-forming substance is a resin for coating or adhesive, such as one or more of epoxy resin, phenolic resin, hydroxypropyl resin, etc.; The curing agent is one or more of an amine curing agent, an acid anhydride curing agent, a resin curing agent, an imidazole curing agent, a latent curing agent, etc.; The auxiliary agent is one or more of an anti-skinning agent, an anti-precipitation agent, a thickener, a thixotropic agent, a leveling agent, a wetting agent, a defoaming agent, etc., to improve the construction properties of the structural color coating and the performance of the photonic crystal film; The solvent includes polar solvents such as one or more of alcohols, esters, ketones, etc., or non-polar solvents such as cyclohexane, petroleum ether, etc.

[0006] A preparation process of a method for preparing a high-transparency colorful glass cover plate comprises the following steps: S1. Raw material preparation: add photonic crystal fillers of different colors, varnish (i.e. film-forming material), curing agent and diluent according to weight ratio into the mixing barrel of the disperser and stir and mix them according to the demand; S2, degassing, placing the evenly stirred coating into a vacuum degassing machine for degassing; S3, coating and curing, using a wire rod coater to evenly coat the structural color coating on the cleaned glass cover plate, and according to the needs, it can be applied to the glass cover plate by spraying, scraping, transfer, screen printing and other construction methods; S4, curing, firstly drying the surface at 50°C for 10 minutes, then transferring to a 150°C oven for baking for 30 minutes, to obtain a photonic crystal film-glass composite structure cover plate of the corresponding photonic crystal filler color; S5. Surface texture production: UV-curing varnish is applied on the surface of the photonic crystal film-glass composite structure cover plate of the corresponding photonic crystal filler color, and then a release film with a brushed texture (the texture can be designed according to requirements) is attached to the side coated with the UV-curing varnish, and a certain pressure is evenly applied to expel bubbles, and then cured under an ultraviolet light source. After the curing is completed, the release film is peeled off to obtain a photonic crystal film-glass composite structure cover plate with a metal brushed decorative effect.

[0007] 3. Beneficial effects: Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects: The present invention creatively utilizes the advantages of color gain and high transparency of photonic crystal structural color under a black background, and based on the difference in the color development principles of chemical color and structural color, uses photonic crystal fillers to prepare a coating with beautiful structural color and applies it to the surface of the glass cover plate to develop a photonic crystal film-glass composite structure cover plate. By adjusting the color type of the photonic crystal filler and the amount of each component added, the decorative effect of the composite glass cover plate in the screen-off (black background) state can be controlled. The composite structure glass cover plate has the beneficial effects of bright color (screen-off, black background), high transparency (screen lit), low haze, and no color deviation in the display screen, and has great application value in the field of smart surfaces. DETAILED DESCRIPTION

[0008] To facilitate understanding of the present invention, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0009] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0010] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0011] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0012] It should be noted that the structures not introduced in the present invention are the same as the prior art or can be implemented by using the prior art, and are not described in detail here because they do not involve the design points and improvement directions of the present invention. Example

[0013] A method for preparing a high-transparency colorful glass cover plate comprises the following components in parts by weight: 5-90 parts of photonic crystal filler; 10-90 parts of film-forming substance; 5-10 parts of curing agent; 0-5 parts of auxiliary agent; and 0-20 parts of solvent.

[0014] In other embodiments, the following parts by weight are included: photonic crystal filler: 20 parts; film-forming substance: 50 parts; curing agent: 5 parts; auxiliary agent: 5 parts; solvent: 20 parts.

[0015] Example 1, taking the preparation of a golden red photonic crystal film-glass composite structure cover plate with a decorative effect as an example, firstly, a golden red structural color coating is prepared, and then the coating is composited with a glass cover plate, specifically comprising the following steps: 1. Weigh 20 parts of golden red photonic crystal filler, 59 parts of varnish, 6 parts of curing agent and 15 parts of diluent according to the proportion, mix them evenly and then degas them to obtain structural color coating; 2. Use a wire rod coater to evenly coat the above structural color coating on the cleaned glass cover plate, first dry it at 50 °C for 10 minutes, then transfer it to a 150 °C oven and bake it for 30 minutes to obtain a golden red photonic crystal film-glass composite structure cover plate.

[0016] Example 2, taking the preparation of a green photonic crystal film-glass composite structure cover plate with a decorative effect as an example, firstly, a green structural color coating is prepared, and then the coating is composited with a glass cover plate, specifically comprising the following steps: 1. Weigh 20 parts of green and red photonic crystal fillers, 59 parts of varnish, 6 parts of curing agent and 15 parts of diluent according to the proportion, mix them evenly and then degasse to obtain structural color coating; 2. Use a doctor blade to evenly apply the above structural color coating on the cleaned glass cover plate, first dry it at 50°C for 10 minutes, then transfer it to a 150°C oven and bake it for 30 minutes to obtain a golden red photonic crystal film-glass composite structure cover plate.

[0017] Example 3, taking the preparation of a colorful photonic crystal film-glass composite structure cover plate as an example, firstly, a green structural color coating is prepared, and then the coating is composited with a glass cover plate, specifically comprising the following steps: 1. Weigh 10 parts of green photonic crystal filler, 10 parts of rose red photonic crystal filler, 59 parts of varnish, 6 parts of curing agent and 15 parts of diluent according to the proportion, mix them evenly and then degasse to obtain structural color coating; 2. Use a wire rod coater to evenly apply the above structural color coating on the cleaned glass cover plate, first dry it at 50 °C for 10 minutes, then transfer it to a 150 °C oven and bake it for 30 minutes to obtain a green and rose-red dual-color photonic crystal film-glass composite structure cover plate.

[0018] Example 4, taking the preparation of a golden red photonic crystal film-glass composite structure cover plate with a metal brushed decorative effect as an example, firstly, a golden red structural color coating is prepared, and then the coating is composited with a glass cover plate, specifically comprising the following steps: 1. Weigh 20 parts of golden red photonic crystal filler, 59 parts of varnish, 6 parts of curing agent and 15 parts of diluent according to the proportion, mix them evenly and then degas them to obtain structural color coating; 2. Use a wire rod coater to evenly coat the structural color coating on the cleaned glass cover plate, first dry it at 50 °C for 10 minutes, then transfer it to a 150 °C oven and bake it for 30 minutes to obtain a golden red photonic crystal film-glass composite structure cover plate; 3. Apply UV curing varnish on the surface of the golden red photonic crystal film-glass composite structure cover plate, then attach a release film with a brushed texture to the side coated with the UV curing varnish, evenly apply a certain pressure to expel bubbles, and then cure it under a UV light source. After curing, peel off the release film to obtain a photonic crystal film-glass composite structure cover plate with a metal brushed decorative effect.

[0019] A method for preparing a high-transparency colorful glass cover plate comprises the following steps: S1. Raw material preparation: add photonic crystal fillers of different colors, varnish (i.e. film-forming material), curing agent and diluent according to weight ratio into the mixing barrel of the disperser and stir and mix them according to the demand; S2, degassing, placing the evenly stirred coating into a vacuum degassing machine for degassing; S3, coating and curing, using a wire rod coater to evenly coat the structural color coating on the cleaned glass cover plate, and according to the needs, it can be applied to the glass cover plate by spraying, scraping, transfer, screen printing and other construction methods; S4, curing, firstly drying the surface at 50°C for 10 minutes, then transferring to a 150°C oven for baking for 30 minutes, to obtain a photonic crystal film-glass composite structure cover plate of the corresponding photonic crystal filler color; S5. Making a metal brushed surface: coating the surface of the photonic crystal film-glass composite structure cover plate with the corresponding color of the photonic crystal filler with UV-curing varnish, and then attaching a release film with a brushed texture to the side coated with the UV-curing varnish, and evenly applying a certain pressure to expel bubbles, and then curing under an ultraviolet light source. After curing, peel off the release film to obtain a photonic crystal film-glass composite structure cover plate with a metal brushed decorative effect.

[0020] Working principle: Photonic crystal fillers have many advantages such as gorgeous colors, black background enhanced structural colors, chameleon effects, etc., and are the key to preparing high-transparency colorful glass cover plates. Unlike traditional chemical color pigments, the color development mechanism of photonic crystal pigments comes from the ability of the material's own structure to regulate light. Its color is produced by optical effects such as scattering, interference and diffraction of light in the material, and belongs to the category of physical color. Therefore, it will not be added to the color displayed on the display, that is, it will not cause the color of the display screen to deviate. In addition, the photon bandgap in the photonic crystal filler will only reflect light of a specific wavelength, and light of other wavelengths will pass smoothly, so it also has the characteristics of high light transmittance. We prepare photonic crystal fillers, main film-forming substances, additives, etc. into coatings, and then apply them to the glass cover plate by spraying, scraping, transfer, screen printing and other construction methods, and then undergo heat / UV curing processes to prepare photonic structural color film-glass composite cover plates with decorative and protective effects.

[0021] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A method for preparing a high-transparency colorful glass cover, characterized in that: The composition comprises the following parts by weight: 5-90 parts of photonic crystal filler; 10-90 parts of film-forming material; Curing agent: 5-10 parts; Additives: 0-5 parts; Solvent: 0-20 parts.

2. The method for preparing a high-transparency colorful glass cover according to claim 1, characterized in that: The photonic crystal filler is an organic or inorganic photonic crystal material with different structural colors or irregular sizes and morphologies, such as one or more of one-dimensional, two-dimensional or three-dimensional photonic crystal materials; The film-forming substance is a resin for coating or adhesive, such as one or more of epoxy resin, phenolic resin, hydroxypropyl resin, etc.; The curing agent is one or more of an amine curing agent, an acid anhydride curing agent, a resin curing agent, an imidazole curing agent, a latent curing agent, etc.; The auxiliary agent is one or more of an anti-skinning agent, an anti-precipitation agent, a thickener, a thixotropic agent, a leveling agent, a wetting agent, a defoaming agent, etc., to improve the construction properties of the structural color coating and the performance of the photonic crystal film; The solvent is a polar solvent such as one or more of alcohols, esters, ketones, etc., or a non-polar solvent such as cyclohexane, petroleum ether, etc.

3. A method for preparing a high-transparency colorful glass cover according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1. Raw material preparation: add photonic crystal fillers of different colors, varnish (i.e. film-forming material), curing agent and diluent according to weight ratio into the mixing barrel of the disperser and stir and mix them according to the demand; S2, degassing, placing the evenly stirred coating into a vacuum degassing machine for degassing; S3, coating, using a wire rod coater to evenly coat the structural color coating on the cleaned glass cover plate, and according to the needs, it can be applied to the glass cover plate by spraying, scraping, transfer, screen printing and other construction methods; S4, curing, firstly drying the surface at 50°C for 10 minutes, then transferring to a 150°C oven for baking for 30 minutes, to obtain a photonic crystal film-glass composite structure cover plate of the corresponding photonic crystal filler color; S5. Making a metal brushed surface: coating the surface of the photonic crystal film-glass composite structure cover plate with the corresponding color of the photonic crystal filler with UV-curing varnish, and then attaching a release film with a brushed texture to the side coated with the UV-curing varnish, and evenly applying a certain pressure to expel bubbles, and then curing under an ultraviolet light source. After curing, peel off the release film to obtain a photonic crystal film-glass composite structure cover plate with a metal brushed decorative effect.