Optical film with colorful coating

Abstract

The utility model discloses a colorful optical film, a colorful transfer printing film, a colorful protective film, a colorful colored film, a colorful color-changing film, a colorful polarizing film, a colorful polarizing color-changing film, an anti-fog polarizing color-changing colorful film and other optical films which are all provided with colorful coatings as bases, can replace the existing electroplating technology, and has the beneficial effects brought by electroplating. And meanwhile, the defects of an electroplating process can be overcome, the production efficiency is improved, and energy conservation and emission reduction are achieved. The working principle of the colorful film is based on the anisotropy and birefringence optical performance of liquid crystal and the Bragg reflection principle, multi-layer superposition interference color development is achieved, and therefore the lower the transmittance of the ground color is, the better the colorful color development effect is.

Description

Technical Field

[0001] This utility model belongs to the field of optical film technology, and specifically refers to an optical film with a colorful coating, including colorful optical film, colorful transfer film, colorful protective film, colorful colored film, colorful color-changing film, colorful polarizing film, colorful polarizing color-changing film, and anti-fog polarizing color-changing colorful film. Background Technology

[0002] Currently, TAC-coated or other optical film lenses on the market are made by processing optical film materials and then creating composite materials through multi-layer composite technology. These composite materials are then cut into the required small sizes and shaped into specific curvatures through a bending process. Afterward, the shaped lenses are sent for electroplating to achieve the desired color effect. Once electroplating is complete, the lenses are cut to fit the frame size. Finally, the cut lenses are fitted into the frame, completing the eyeglasses manufacturing process.

[0003] Electroplating processes are mainly divided into two types: wet electroplating and vacuum electroplating. Their core purpose is to coat the lens surface with a metallic film to enhance lens performance, protect the lens, and improve its aesthetic appearance. With increasing market competition and diversified demands, lens design and processing technologies have undergone significant changes. Due to its characteristics, the electroplated layer is neither resistant to acids and alkalis nor scratches, making it highly susceptible to irreversible damage. This damage not only affects the wearing experience and appearance of the lens, but long-term wear of damaged lenses may also threaten the user's eye health. Furthermore, the physical rigidity of the electroplated layer limits its application in the processing or design and development of new products involving large curvatures, easily leading to cracking of the electroplated layer. Utility Model Content

[0004] The main purpose of this invention is to provide an optical film with a colorful coating, which solves the problems existing in the prior art. It is suitable for lens processing technology, and has the performance and aesthetics to match the electroplating process. It also solves the shortcomings of existing electroplating layers such as being not resistant to acids and alkalis and not resistant to scratches. Its flexibility can meet the requirements of large curvature in the later processing or design and development of lenses. At the same time, it reduces the process steps in existing lens processing, improves efficiency, and saves energy and reduces emissions.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A colorful optical film includes a stacked colorful coating and a TAC substrate layer; the colorful coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it on the surface of the TAC substrate layer, and then curing it, with a transmittance of 70% to 95%; the TAC substrate layer is one of TAC, PC, PA, PMMA, glass, plastic, or a lens.

[0007] A color transfer film includes a multi-layered color coating and a release film; the color coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the release film, and then curing it, with a transmittance of 70% to 95%; the color transfer film transfers the color coating onto the surface of a target substrate after the release film is peeled off; the release film is one of TAC, PC, PA, PMMA, or plastic.

[0008] A colorful protective film includes a layered protective film, a colorful coating, and a TAC substrate layer; the colorful coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the TAC substrate layer, and then curing it, with a transmittance of 70% to 95%; the protective film is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film.

[0009] A colorful film includes a layered protective film, a colorful coating, a colored film, an anti-UV film, and a protective film; the colorful coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the colored film, and then curing it, with a transmittance of 70% to 95%; the protective film is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film.

[0010] A color-changing film includes a layered protective film, a color-changing coating, a color-changing film, an anti-UV film, and a protective film; the color-changing coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the color-changing film, and then curing it, with a transmittance of 70% to 95%; the protective film is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film.

[0011] A multicolored polarizing film includes a protective film, a multicolored coating, a polarizing film, an anti-UV film, and a protective film stacked together; the multicolored coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the polarizing film, and then curing it, with a transmittance of 70% to 95%; the protective film is one of a hardening film, a self-healing film, an oil-resistant hardening film, or a seawater-resistant hardening film.

[0012] A color-changing polarizing film includes a protective film, a color-changing coating, a color-changing film, a polarizing film, an anti-UV film, and a protective film stacked together; the color-changing coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the color-changing film, and then curing it, with a transmittance of 70% to 95%; the protective film is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film.

[0013] An anti-fog polarizing color-changing film includes a protective film, a color-changing coating, a color-changing film, a polarizing film, an anti-UV film, and an anti-fog film. The color-changing coating is formed by mixing liquid crystal resin or optical resin with a non-reactive dye, coating it onto the surface of the color-changing film, and then curing it. Its transmittance is 70% to 95%. The protective film is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film.

[0014] After adopting the above technical solution, the present invention has the following technical effects:

[0015] Iridescent optical films, including iridescent transfer films, iridescent protective films, iridescent colored films, iridescent color-changing films, iridescent polarizing films, iridescent polarized color-changing films, and anti-fog polarized color-changing iridescent films, all use iridescent coatings as a base. These films can replace existing electroplating processes, offering the beneficial effects of electroplating while overcoming its shortcomings, thus improving production efficiency and reducing energy consumption and emissions. The working principle of iridescent films is based on the anisotropy and birefringence of liquid crystals and the Bragg reflection principle, using multi-layer superposition interference to display colors. Therefore, the lower the transmittance of the base color, the better the iridescent color display effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the colorful optical film in a specific embodiment of this utility model.

[0017] Figure 2 The spectral curve of the iridescent (red) optical film is shown in a specific embodiment of this utility model.

[0018] Figure 3 The spectral curve of the iridescent (green) optical film is shown in a specific embodiment of this utility model.

[0019] Figure 4 The spectral curve of the iridescent (blue) optical film is shown in a specific embodiment of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the colorful transfer film in a specific embodiment of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the colorful protective film in a specific embodiment of this utility model.

[0022] Figure 7 This is a schematic diagram of the colorful film structure of a specific embodiment of the present utility model.

[0023] Figure 8 This is a schematic diagram of the structure of the color-changing film in a specific embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the structure of the iridescent polarizing film in a specific embodiment of this utility model.

[0025] Figure 10 This is a schematic diagram of the structure of the iridescent (red) polarizing film in a specific embodiment of this utility model.

[0026] Figure 11 This is a schematic diagram of the structure of the iridescent (green) polarizing film according to a specific embodiment of the present invention.

[0027] Figure 12 This is a schematic diagram of the structure of the iridescent (blue) polarizing film in a specific embodiment of this utility model.

[0028] Figure 13 This is a schematic diagram of the structure of the iridescent polarizing film in a specific embodiment of this utility model.

[0029] Figure 14 This is a schematic diagram of the anti-fog polarizing color-changing iridescent film structure according to a specific embodiment of the present invention.

[0030] Explanation of icon numbers:

[0031] 1-Colorful coating; 2-TAC substrate layer; 3-Release film; 4-Protective film; 5-Colored film; 6-Anti-UV film; 7-Color-changing film; 8-Polarizing film; 9-Anti-fog film. Detailed Implementation

[0032] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0033] This utility model proposes an optical film with a iridescent coating, specifically involving iridescent optical films, iridescent transfer films, iridescent protective films, iridescent colored films, iridescent color-changing films, iridescent polarizing films, iridescent polarized color-changing films, and anti-fog polarized color-changing iridescent films. These optical films all use an iridescent coating as a base, which can replace existing electroplating processes. It possesses the beneficial effects of electroplating while overcoming its shortcomings, thereby improving production efficiency and achieving energy conservation and emission reduction. The working principle of the iridescent film is based on the anisotropy and birefringence optical properties of liquid crystals and utilizes the Bragg reflection principle for multi-layer superposition interference color rendering. Therefore, the lower the transmittance of the base color, the better the iridescent color rendering effect.

[0034] Specifically, refer to Figure 1 As shown, this utility model discloses a colorful optical film, including a multilayered colorful coating 1 and a TAC substrate layer 2; the colorful coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it on the surface of the TAC substrate layer 2 and then curing it, and its thickness is generally 5μm~50μm and its transmittance is generally 70%~95%; the TAC substrate layer 2 is one of TAC (cellulose triacetate), PC (polycarbonate), PA (polyamide), PMMA (polymethyl methacrylate), glass, plastic or lens.

[0035] During the flexibility test, the iridescent optical film was folded 180° by hand and pressed without cracking.

[0036] refer to Figure 2-4 The image shows the spectral curve of the aforementioned iridescent optical film. Figure 2 It is a vibrant red film with a hue of L*=94.09, a*=-4.53, and b*=0.19. The spectrum shows obvious and relatively obvious occlusion in the 620nm~710nm range, that is, the reflected wavelength is in the red light region, and the external color is a transparent light red. Figure 3 It is a vibrant green film with a hue of L*=90.69, a*=6.33, and b*=-8.45. The spectrum shows obvious and relatively obvious occlusion in the 530nm~590nm range, that is, the reflected wavelength is in the green light region, and the external color is transparent light green. Figure 4 It is a vibrant blue film with hues of L*=95.88, a*=0.65, and b*=10.48. The spectrum shows significant obstruction in the 450nm~500nm range, meaning the reflected wavelength is in the red light region, and the external color is a transparent light blue.

[0037] refer to Figure 5 As shown, this utility model discloses a color transfer film, including a multi-layered color coating 1 and a release film 3; the color coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it on the surface of the release film 3 and then curing it, with a thickness generally between 5μm and 50μm and a transmittance generally between 70% and 95%; after the release film 3 is peeled off, the color transfer film transfers the color coating 1 onto the surface of the target substrate; the release film 3 is one of the following materials: TAC, PC, PA, PMMA or plastic.

[0038] refer to Figure 6 As shown, this utility model discloses a colorful protective film, comprising a layered protective film 4, a colorful coating 1, and a TAC substrate layer 2; the colorful coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the TAC substrate layer 2, followed by curing, and its thickness is generally between 5μm and 50μm, and its transmittance is generally between 70% and 95%; the protective film 4 is one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film, and its thickness is between 20μm and 30μm; the TAC substrate layer 2 is one of TAC (cellulose triacetate), PC (polycarbonate), PA (polyamide), PMMA (polymethyl methacrylate), glass, plastic, or a lens.

[0039] refer to Figure 7As shown, this utility model discloses a colorful film, including a protective film 4, a colorful coating 1, a colored film 5, an anti-UV film 6, and a protective film 4'. The colorful coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the colored film 5 and then curing it. Its thickness is generally 5μm to 50μm and its transmittance is generally 70% to 95%. The protective films 4 and 4' are one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film, and their thickness is 20μm to 30μm.

[0040] refer to Figure 8 As shown, this utility model discloses a color-changing film, including a protective film 4, a color-changing coating 1, a color-changing film 7, an anti-UV film 6, and a protective film 4'. The color-changing coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the color-changing film 7 and then curing it. Its thickness is generally 5μm to 50μm and its transmittance is generally 70% to 95%. The protective films 4 and 4' are one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film, and their thickness is 20μm to 30μm.

[0041] refer to Figure 9-12 As shown, this utility model discloses a colorful polarizing film, including a protective film 4, a colorful coating 1, a polarizing film 8, an anti-UV film 6, and a protective film 4'. The colorful coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the polarizing film 8 and then curing it. Its thickness is generally 5μm to 50μm and its transmittance is generally 70% to 95%. The protective films 4 and 4' are one of a hardening film, a self-healing film, an oil-resistant hardening film, or a seawater-resistant hardening film, and their thickness is 20μm to 30μm.

[0042] refer to Figure 10-12 The image shows the spectral curve of the aforementioned iridescent polarizing film. Specifically, Figure 10-12 The images show the spectral curves of red, green, and blue iridescent films combined with polarizing films. Because the iridescent layer itself is a nearly transparent light color, its transmittance decreases after being combined with the polarizing film. The lower the transmittance of the base color, the better the color display effect. It has both the effect of polarization and the color display effect similar to electroplating.

[0043] refer to Figure 13As shown, this utility model discloses a colorful polarizing film, including a protective film 4, a colorful coating 1, a color-changing film 7, a polarizing film 8, an anti-UV film 6, and a protective film 4'. The colorful coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the color-changing film 7 and then curing it. Its thickness is generally 5μm to 50μm and its transmittance is generally 70% to 95%. The protective films 4 and 4' are one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film, and their thickness is 20μm to 30μm.

[0044] refer to Figure 14 As shown, this utility model discloses an anti-fog polarizing color-changing film, comprising a protective film 4, a color-changing coating 1, a color-changing film 7, a polarizing film 8, an anti-UV film 6, and an anti-fog film 9. The color-changing coating 1 is formed by mixing liquid crystal resin or optical resin with a non-reactive dye and coating it onto the surface of the color-changing film 7, followed by curing. Its thickness is generally 5μm to 50μm, and its transmittance is generally 70% to 95%. The protective films 4 and 4' are one of a hardened film, a self-healing film, an oil-resistant hardened film, or a seawater-resistant hardened film, with a thickness of 20μm to 30μm. The anti-fog film 9 is a TAC anti-fog film.

[0045] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A color shifting optical film, characterized in that: It comprises a color shifting coating layer and a TAC substrate layer; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the TAC substrate layer and then curing; the transmittance is 70%~95%; the TAC substrate layer is one of TAC, PC, PA, PMMA, glass, plastic or lens.

2. A color shifting transfer film, characterized in that: It comprises a color shifting coating layer and a release film; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the release film and then curing; the transmittance is 70%~95%; the color shifting transfer film transfers the color shifting coating layer to the surface of the target substrate after the release film is torn off; the release film is one of TAC, PC, PA, PMMA or plastic.

3. A color shifting protective film, characterized in that: It comprises a protective film, a color shifting coating layer and a TAC substrate layer; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the TAC substrate layer and then curing; the transmittance is 70%~95%; the protective film is one of hardening film, self-repairing film, oil stain resistant hardening film or seawater resistant hardening film.

4. A color shifting colored film, characterized in that: It comprises a protective film, a color shifting coating layer, a colored film, an anti-UV film and a protective film; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the colored film and then curing; the transmittance is 70%~95%; the protective film is one of hardening film, self-repairing film, oil stain resistant hardening film or seawater resistant hardening film.

5. A color shifting color changing film, characterized in that: It comprises a protective film, a color shifting coating layer, a color changing film, an anti-UV film and a protective film; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the color changing film and then curing; the transmittance is 70%~95%; the protective film is one of hardening film, self-repairing film, oil stain resistant hardening film or seawater resistant hardening film.

6. A color shifting polarizing film, characterized in that: It comprises a protective film, a color shifting coating layer, a polarizing film, an anti-UV film and a protective film; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the polarizing film and then curing; the transmittance is 70%~95%; the protective film is one of hardening film, self-repairing film, oil stain resistant hardening film or seawater resistant hardening film.

7. A color shifting polarizing color changing film, characterized in that: It comprises a protective film, a color shifting coating layer, a color changing film, a polarizing film, an anti-UV film and a protective film; the color shifting coating layer is formed by coating liquid crystal resin or optical resin mixed with non-reactive dye on the surface of the color changing film and then curing; the transmittance is 70%~95%; the protective film is one of hardening film, self-repairing film, oil stain resistant hardening film or seawater resistant hardening film.

8. An anti-fog polarizing color changing color shifting film, characterized in that: The protective film includes a laminated protective film, a color-changing film, a color-shifting film, a polarizing film, an anti-UV film, and an anti-fog film; the color-shifting film is formed by coating a mixture of liquid crystal resin or optical resin and non-reactive dyeing agent on the surface of the color-changing film and then solidifying, and has a transmittance of 70% to 95%; and the protective film is one of a hardened film, a self-repairing film, an oil stain-proof hardened film, or a seawater-proof hardened film.

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