Color film

Abstract

The invention discloses a color film which comprises a base material layer, a first coating layer, a second coating layer, a priming layer, a NiCr layer, a SiO2 layer, a Nb2O5 layer, a SnO2 layer and an AF layer. The base material layer is provided with a first surface and a second surface which are oppositely arranged. The first coating layer is coated on the first surface. The second coating layer is coated on the second surface. And the priming layer is plated on the surface of the second coating layer. And the NiCr layer is plated on the surface of the base layer. And the SiO2 layer is plated on the surface of the NiCr layer. And the Nb2O5 layer is plated on the surface of the SiO2 layer. And the SnO2 layer is plated on the surface of the Nb2O5 layer. The surface of the SnO2 layer is coated with the AF layer. According to the color film, the NiCr layer, the SiO2 layer and the Nb2O5 layer are arranged, and the thickness of each layer is adjusted, so that the color film shows different colors to meet different use requirements. The NiCr layer, the SiO2 layer and the Nb2O5 layer of the color film can effectively filter ultraviolet rays and part of blue light, and the eye protection effect is achieved. The arrangement of the SnO2 layer can improve the hardness and wear resistance of the color film. In addition, the AF layer can improve the oil stain resistance, fingerprint resistance, scratch resistance and the like of the color film.

Description

Technical Field

[0001] The invention belongs to the technical field of film materials, and in particular relates to a color film. Background Art

[0002] Glasses are a common product in daily life, mainly myopia glasses, sunglasses, etc. The functions and colors of existing glasses are relatively simple. If color changes and other functions need to be achieved, the cost of the lenses will be high. With the increase in usage scenarios and the increase in usage time, people's requirements for glasses are getting higher and higher. Therefore, it is particularly important to achieve color changes of glasses at a low cost, such as making glasses have dark gray, brown, green, blue and other colors; increase the blue light and purple light protection performance of glasses to reduce user eye fatigue; and improve wear resistance and scratch resistance to keep the lenses neat and beautiful.

[0003] Therefore, the present invention hopes to provide a color film, which can be implanted into the surface of the lens or processed into a sheet and attached to the outer surface of the glasses. The color film can play a role of filtering light, can block harmful ultraviolet rays and part of blue light, can reduce the fatigue of the eyes in daily life, and effectively protect the eyes from ultraviolet damage. And make the appearance of the glasses fashionable and beautiful, suitable for different fashion combinations, and can also increase the artistic sense of personal styling. The color film can also help cover visual impairment, improve the contour of facial expressions, and make the face more three-dimensional and natural. The surface of the color film can play a certain role in protecting the glasses, can reduce the scratches and wear on the surface of the glasses lens, and keep the lenses neat and beautiful. The color film can also be used as a decorative film for glass.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide a color film which can block ultraviolet rays and part of blue light and has strong wear resistance and scratch resistance.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows: The present invention discloses a color film, which comprises: a substrate layer, a first coating layer, a second coating layer, a primer layer, a NiCr layer, a SiO 2 Layer, Nb 2 O 5 layer, SnO 2 The substrate layer has a first surface and a second surface disposed opposite to each other. The first coating layer is coated on the first surface. The second coating layer is coated on the second surface. The primer layer is plated on the surface of the second coating layer. The NiCr layer is plated on the surface of the primer layer. SiO2 The Nb layer is plated on the surface of the NiCr layer. 2 O 5 Layer coated on SiO 2 The surface of the SnO layer 2 Layer plated on Nb 2 O 5 The AF layer is coated on the SnO 2 The surface of the layer.

[0007] In one or more embodiments of the present invention, the thickness of the NiCr layer is between 1 nm and 30 nm.

[0008] In one or more embodiments of the present invention, the SiO 2 The thickness of the layer is between 5nm and 100nm.

[0009] In one or more embodiments of the present invention, the Nb 2 O 5 The thickness of the layer is between 40nm and 220nm.

[0010] In one or more embodiments of the present invention, the SnO 2 The thickness of the layer is between 3nm-30nm.

[0011] In one or more embodiments of the present invention, the thickness of the AF layer is between 2nm and 9nm.

[0012] In one or more embodiments of the present invention, the substrate layer is selected from one of a PET layer, a PI layer, a TAC layer, a COP layer and a PC layer; and the thickness of the substrate layer is between 5.7 μm and 250 μm.

[0013] In one or more embodiments of the present invention, the thickness of the first coating layer is between 10 nm and 500 nm; the thickness of the second coating layer is between 40 nm and 1000 nm.

[0014] In one or more embodiments of the present invention, the primer layer is selected from SiO 2 、Ti、TiO 2 、Si、MgF 2 and SiO; the thickness of the base layer is between 0.2nm and 20nm.

[0015] In one or more embodiments of the present invention, a first protective layer is disposed on a side of the first coating layer away from the substrate layer, and a second protective layer is disposed on a surface of the AF layer.

[0016] Compared with the prior art, the color film of the present invention is provided with NiCr layer, SiO 2 Layer and Nb2 O 5 The layers and thickness of each layer make the color film show different colors to meet different usage needs. 2 Layer and Nb 2 O 5 The SnO layer can also effectively filter ultraviolet rays and some blue light, playing a role in eye protection. 2 The setting of the layer can improve the hardness and wear resistance of the color film. In addition, the AF layer can also improve the anti-oil, anti-fingerprint and anti-scratch properties of the color film. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 is a schematic diagram of a color film in one embodiment of the present invention;

[0019] Figure 2 A curve diagram of reflectivity and transmittance of a color film at 380nm-780nm in one embodiment of the present invention;

[0020] Figure 3 400nm-700nm reflectivity and transmittance curve of the color film in one embodiment of the present invention.

[0021] Description of main reference numerals:

[0022] 1-substrate layer, 2-first coating layer, 3-second coating layer, 4-priming layer, 5-NiCr layer, 6-SiO 2 Layer, 7-Nb 2 O 5 layer, 8-SnO 2 Layer, 9-AF layer, 10-first protective layer, 11-second protective layer. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] like Figure 1 As shown, a color film in one embodiment of the present invention comprises: a substrate layer 1, a first coating layer 2, a second coating layer 3, a primer layer 4, a NiCr layer 5, a SiO 2 Layer 6, Nb 2 O 5 Layer 7, SnO 2 The substrate layer 1 has a first surface and a second surface disposed opposite to each other. The first coating layer 2 is coated on the first surface. The second coating layer 3 is coated on the second surface. The primer layer 4 is plated on the surface of the second coating layer 3. The NiCr layer 5 is plated on the surface of the primer layer 4. SiO 2 Layer 6 is plated on the surface of NiCr layer 5. Nb 2 O 5 Layer 7 is plated on SiO 2 The surface of layer 6. SnO 2 Layer 8 is plated on Nb 2 O 5 The surface of layer 7. AF layer 9 is coated on SnO 2 The surface of layer 8.

[0025] In the above embodiment, the present invention uses the NiCr layer 5, SiO 2 Layer 6 and Nb 2 O 5 The arrangement of layer 7 enables the color film to produce different colors according to the use requirements. 2 Layer 6 and Nb 2 O 5 The setting of layer 7 can also effectively filter ultraviolet rays and part of blue light, playing a protective role.

[0026] In one embodiment, the substrate layer 1 is selected from one of a PET layer, a PI layer, a TAC layer, a COP layer and a PC layer. The thickness of the substrate layer 1 is between 5.7 μm and 250 μm.

[0027] The substrate layer 1 has a first surface and a second surface arranged opposite to each other. The first surface and the second surface are coated with a high-refractive acrylic resin coating solution, respectively, to form a first coating layer 2 on the first surface and a second coating layer 3 on the second surface, so as to improve the adhesion between the substrate layer 1 and other layer structures. Furthermore, the thickness of the first coating layer 2 is between 10nm and 500nm. The thickness of the second coating layer 3 is between 40nm and 1000nm.

[0028] Furthermore, a first protective layer 10 is provided on the side of the first coating layer 2 away from the substrate layer 1. For example, the first protective layer 10 may be a PET protective layer. The first protective layer 10 may protect the film surface of the color film during the coating process and improve the stability of the coating.

[0029] In one embodiment, the surface of the second coating layer 3 is coated with a primer layer 4 by a magnetron sputtering process to increase adhesion. The primer layer 4 is selected from SiO 2 、Ti、TiO 2 、Si、MgF 2 and SiO. Further, the thickness of the base layer 4 is between 0.2nm and 20nm.

[0030] The surface of the base layer 4 is plated with a NiCr layer 5 for reducing the transmittance of ultraviolet light and blue light. In one embodiment, the thickness of the NiCr layer 5 is between 1 nm and 30 nm.

[0031] The surface of the NiCr layer 5 is plated with SiO 2 Layer 6. SiO 2 Layer 6 can change the reflectivity of the color film. For example, SiO 2 Layer 6 can enhance the red band and reduce the blue band reflection, thereby achieving the blue-green color of the color film. 2 The thickness of layer 6 is between 5 nm and 100 nm.

[0032] SiO 2 The surface of layer 6 is plated with Nb 2 O 5 Layer 7. Nb 2 O 5 Layer 7 can change the reflectivity of the color film to red and blue light. 2 O 5 Layer 7 can enhance the red band and reduce the blue band reflection, thereby achieving the blue-green color of the color film. 2 O 5 The thickness of layer 7 is between 40 nm and 220 nm.

[0033] In one embodiment, Nb 2 O 5 The surface of layer 7 may also be plated with SnO 2 Layer 8 is formed to improve the hardness and wear resistance of the color film. Preferably, SnO 2 The thickness of layer 8 is between 3 nm and 30 nm.

[0034] SnO 2 The surface of the layer 8 is coated with a perfluoropolyether coating to form an AF layer 9, and the AF layer 9 can make the color film have the properties of anti-oil, anti-fingerprint and anti-scratch. Specifically, the thickness of the AF layer 9 is between 2nm and 9nm. Further, the surface of the AF layer 9 is provided with a second protective layer 11. The second protective layer 11 can be, for example, a PET protective layer, which is used to prevent the color film from being scratched during transportation.

[0035] The present invention is further described below in conjunction with specific embodiments.

[0036] Example 1

[0037] The color film includes from bottom to top:

[0038] First protective layer 10: PET protective layer. First coating layer 2: thickness 50nm. Substrate layer 1: PET layer, thickness 40μm. Second coating layer 3: thickness 50nm. Base layer 4: MgF 2 layer, thickness 10nm. NiCr layer 5: thickness 5nm. SiO 2 Layer 6: Thickness 10 nm. Nb 2 O 5 Layer 7: Thickness 60nm. SnO 2 Layer 8: thickness 10 nm. AF layer 9: thickness 5 nm. Second protective layer 11: PET protective layer.

[0039] The color film of Example 1 was subjected to reflectivity, transmittance, hardness, abrasion resistance and cross-sectional tests.

[0040] Reflectivity and transmittance test method: OCA glue is applied to the back of the color film and it is attached to a black acrylic board. After attachment, it is degassed with a degassing machine. After degassing, the surface is wiped clean and its reflectivity and transmittance data are tested with an Olympus reflectometer.

[0041] like Figure 2 and Figure 3 As shown, the color film of Example 1 has an average reflection value of 16.32% and an average transmission value of 62.27% at 380-780nm, an average reflection value of 14.61% and an average transmission value of 63.28% at 400-700nm, and the optical data of the color film are all within the standard range.

[0042] Hardness test: The back of the color film of Example 1 is bonded with OCA glue and attached to transparent glass. After bonding, it is degassed with a degassing machine. After degassing, the surface is wiped clean and the surface pencil hardness of the color film is tested with a pencil hardness tester. Test requirements: Use pencils of different weights and different hardness to draw 5 lines on the left, middle and right positions of the surface of the color film. ≥3 lines are judged as qualified, and ≤2 lines are judged as unqualified. The test results are shown in Table 1 below.

[0043] Table 1 Hardness test results of Example 1

[0044]

[0045] As shown in Table 1, the pencil hardness of the color film under a load of 500g can reach 5H, which is basically qualified. The pencil hardness under a load of 750g can reach 2H, which is basically qualified, and the hardness of 3H is slightly worse. However, the color film is a flexible film, so the overall hardness is higher than that of normal flexible films.

[0046] Abrasion resistance test: The back of the color film is pasted with OCA glue and pasted on the transparent glass. After pasting, it is degassed with a degassing machine. After degassing, the surface is wiped clean, the coated surface faces upward, and the wear machine is loaded with a 1000g weight. The wear head is fixed with Japanese Bonstar 0000# steel wool placed on the film surface. The stroke is 60mm long, and one back and forth grinding is one stroke. The test results are shown in Table 2 below.

[0047] Table 2 Wear resistance test results of Example 1

[0048]

[0049] As shown in Table 2 above, the color film had no scratches in the test of abrasion resistance of 1000-3000 times. In the test of abrasion resistance of 5000 times, one scratch appeared. Therefore, the surface abrasion resistance of the color film is relatively excellent.

[0050] Baige test method: stick OCA glue on the back of the color film and stick it on the transparent glass. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean.

[0051] Double 85 ring test (high temperature 85℃, high humidity 85%). Sunlight resistance test (light 0.55w / (m 2 .nm), wavelength 340nm, filter ExtendedUV-Q / B, 3.8h of light + 1h of darkness as one cycle. The temperature of the blackboard during illumination was set at 89°C, the temperature of the box was 63°C, and the humidity was 50%; the temperature of the box and blackboard was set at 38°C and the humidity was 95% during the dark stage. QUV resistance test (UV-A, 340nm, 0.63W / m 2 , condensation 50℃, 4h as 1 cycle). High temperature test (95℃). The test results are shown in Table 3 below.

[0052] Table 3 100-grid test results of the color film of Example 1

[0053]

[0054] As shown in Table 3 above, the color film of Example 1 did not fall off in all the 100-grid tests, and its environmental test performance met the performance requirements.

[0055] In summary, the color film of the present invention is provided with NiCr layer 5, SiO 2 Layer 6 and Nb 2 O 5 The thickness of the layer 7 and each layer can make the color film show different colors to meet different usage requirements. 2 Layer 6 and Nb 2 O 5Layer 7 can also effectively filter ultraviolet rays and some blue light, playing a role in eye protection. 2 The arrangement of layer 8 can improve the hardness and wear resistance of the color film. In addition, AF layer 9 can also improve the anti-oil, anti-fingerprint and anti-scratch properties of the color film.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A color film, characterized in that: include: A substrate layer having a first surface and a second surface opposite to each other; A first coating layer, coated on the first surface; A second coating layer, coated on the second surface; A base layer, plated on the surface of the second coating layer; A NiCr layer is plated on the surface of the primer layer; A SiO2 layer, plated on the surface of the NiCr layer; A Nb2O5 layer, plated on the surface of the SiO2 layer; A SnO2 layer, plated on the surface of the Nb2O5 layer; and The AF layer is coated on the surface of the SnO2 layer.

2. The color film according to claim 1, characterized in that: The thickness of the NiCr layer is between 1 nm and 30 nm.

3. The color film according to claim 1, characterized in that: The thickness of the SiO2 layer is between 5nm and 100nm.

4. The color film according to claim 1, characterized in that: The thickness of the Nb2O5 layer is between 40nm and 220nm.

5. The color film according to claim 1, characterized in that: The thickness of the SnO2 layer is between 3nm and 30nm.

6. The color film according to claim 1, characterized in that: The thickness of the AF layer is between 2nm and 9nm.

7. The color film according to claim 1, characterized in that: The substrate layer is selected from one of a PET layer, a PI layer, a TAC layer, a COP layer and a PC layer; and the thickness of the substrate layer is between 5.7 μm and 250 μm.

8. The color film according to claim 1, characterized in that: The thickness of the first coating layer is between 10nm and 500nm; the thickness of the second coating layer is between 40nm and 1000nm.

9. The color film according to claim 1, characterized in that: The coating layer is selected from one of SiO2, Ti, TiO2, Si, MgF2 and SiO; the thickness of the coating layer is between 0.2nm and 20nm.

10. The color film according to claim 1, characterized in that: A first protective layer is disposed on a side of the first coating layer away from the substrate layer, and a second protective layer is disposed on a surface of the AF layer.

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