Flexible film for decoration, lens, and glasses

Abstract

The invention discloses a flexible thin film for decoration, a lens and glasses, the thin film comprises a base material layer, and an upper bottom coating and a lower bottom coating are respectively formed on two sides of the base material layer; respectively forming an upper IM layer and a lower IM layer on the upper bottom coating and the lower bottom coating; and sequentially forming a bottom layer, a silicon dioxide layer, a metal nickel-chromium layer and a niobium oxide layer on the upper IM layer. According to the scheme, the light transmittance can be reduced, the glasses have the effect like sunglasses, ultraviolet rays and blue light can be filtered out, eyes are protected, or the glasses can be applied to a glass decoration film, due to the main body film structure, application and replacement can be facilitated in the film pasting mode in the application process, and better application characteristics are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of optical materials, and in particular relates to a decorative flexible film, a lens and glasses. Background Art

[0002] Glasses are made up of lenses and frames, and are used to improve vision, protect the eyes, or for decorative purposes. For example, anti-blue light glasses are glasses that can prevent blue light from irritating the eyes. Special anti-blue light glasses can effectively isolate ultraviolet rays and radiation and filter blue light, and are suitable for use when watching computers, TVs, or mobile phones. In the prior art, the film layer is generally directly plated on the lens in the form of a coating, and the lens needs to be processed again. The processing cost is high and the difficulty is relatively large. In addition, the coating may be damaged during the subsequent lens grinding, and the coating is easily worn out during continuous use, affecting the use effect.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a decorative flexible film, lens and glasses.

[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 decorative flexible film, a lens and glasses.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] The decorative flexible film comprises a substrate layer, an upper primer layer and a lower primer layer are formed on both sides of the substrate layer respectively; an upper IM layer and a lower IM layer are formed on the upper primer layer and the lower primer layer respectively; a primer layer, a silicon dioxide layer, a metal nickel-chromium layer and a niobium oxide layer are sequentially formed on the upper IM layer.

[0008] In one or more embodiments of the present invention, the thickness of the primer layer is 2-30 nm.

[0009] In one or more embodiments of the present invention, the raw material of the base layer is selected from: SiO2, Ti, TiO2, Si, MgF2, SiO.

[0010] In one or more embodiments of the present invention, the thickness of the silicon dioxide layer is 15-150 nm.

[0011] In one or more embodiments of the present invention, the thickness of the metal nickel-chromium layer is 1-30 nm.

[0012] In one or more embodiments of the present invention, the thickness of the niobium oxide layer is 3-200 nm.

[0013] In one or more embodiments of the present invention, the thickness of the substrate layer is 5.7-250 μm.

[0014] In one or more embodiments of the present invention, the substrate layer is a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer.

[0015] In one or more embodiments of the present invention, the lower IM layer may also be formed with a high temperature protection layer. Preferably, the thickness of the high temperature protection layer is 30-188 μm.

[0016] In one or more embodiments of the present invention, an AF layer may be formed on the niobium oxide layer. Preferably, the thickness of the AF layer is 2-190 nm.

[0017] In one or more embodiments of the present invention, a lens includes a lens body and a decorative flexible film formed on the body.

[0018] In one or more embodiments of the present invention, glasses include a frame and lenses disposed on the frame.

[0019] Compared with the prior art, the decorative flexible film, lens and glasses of the present invention realize a film with low light transmittance. After being applied to glasses, the transmittance of light can be reduced, so that the glasses have the effect of sunglasses, and can filter out ultraviolet rays and blue light to protect the eyes. Alternatively, it can be used as a decorative film on glass. Moreover, due to the main film structure, it can be applied in the form of a film during application, which is convenient for application and replacement and has better application characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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.

[0021] Figure 1 380-780nm reflection / transmission curve of the flexible film in one embodiment of the present invention;

[0022] Figure 2 400-700nm reflection / transmission curve of the flexible film in one embodiment of the present invention;

[0023] Figure 3 A comparison diagram of reflection curves of a flexible film before and after boiling in water in one embodiment of the present invention;

[0024] Figure 4 This is a comparison diagram of the transmission curves of the flexible film before and after boiling in one embodiment of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with 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.

[0026] The decorative flexible film of the present invention comprises a substrate layer, which may be a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer, the substrate layer has a thickness of 5.7-250 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 40-320 nm, and the lower IM layer has a coating thickness of 0.3-3.9 μm, and after coating, a 30-188 μm high-temperature protective film is attached to the lower bottom layer, so that the appearance protection of the film surface and the coating stability during the magnetron sputtering coating process are ensured, and a coating layer for increasing the adhesion of the bottom layer is plated on the upper IM layer through a magnetron sputtering process The bottom layer has a thickness of 2-30nm. The bottom layer can be plated with SiO2 / Ti / TiO2 / Si / MgF2 / SiO. A silicon dioxide (SiO2) layer (15-150nm) is plated on the bottom layer to reduce reflection. A metal nickel chromium (NiCr) layer (1-30nm) is plated on the silicon dioxide (SiO2) layer to reduce transmittance, wherein the nickel content is 5-8wt%. A niobium oxide (Nb2O5) layer (3-200nm) is plated on the metal nickel chromium layer to increase reflection. After the magnetron coating, a layer of AF layer (2-190nm) with anti-oil, anti-fingerprint and anti-scratch properties is coated on the surface. It is mainly obtained by coating with perfluoropolyether coating. The test reflectivity is between 10-20% and the transmittance is between 55-70%.

[0027] Example 1

[0028] The decorative flexible film of this embodiment includes a PET substrate layer, the substrate layer has a thickness of 5.7 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 40 nm, and the lower IM layer has a coating thickness of 0.3 μm, and after coating, a 30 μm high-temperature protective film is attached to the lower bottom layer, which has ensured the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process. Qualitatively, a primer layer for increasing the adhesion of the base layer is plated on the upper IM layer by a magnetron sputtering process. The thickness of the primer layer is 2nm, and the primer layer can be a TiO2 primer. A 15nm silicon dioxide layer for reducing reflection is plated on the primer layer, and a 1nm metal nickel-chromium layer for reducing transmittance is plated on the silicon dioxide layer, wherein the nickel content is 5wt%, and a 3nm niobium oxide layer for increasing reflection is plated on the metal nickel-chromium layer. After the magnetron coating, a 2nm AF layer with anti-oil, anti-fingerprint and anti-scratch properties is coated on the surface, which is mainly obtained by coating with perfluoropolyether coating.

[0029] from Figure 3 , 4 It can be seen that the unified test method is to stick OCA glue on the back before the ring test and stick it on the black acrylic board. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean and test it with an Olympus reflectometer. The reflection contrast is tested at 100℃ water temperature for 3-4h. There is no obvious change in 3-4h. The average reflection of 400-700nm before and after boiling are 14.18 / 13.95 / 14.44% respectively, and the transmittance is 62.93 / 63.11 / 62.73% respectively.

[0030]

[0031] Table 1 Pencil hardness test As can be seen from Table 1, the unified test method is to stick OCA glue on the back and stick it on the transparent glass. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean and use a pencil hardness tester to test the surface pencil hardness. The test requirements are to use pencils with different hardness under different loads, and draw 5 lines respectively. ≥3 lines are judged as qualified, and ≤2 lines are judged as NG. It can be seen from the above table that the pencil hardness under a load of 500g can reach 5H, which is basically OK, and the pencil hardness under a load of 750g can reach 2H, which is basically OK, and 3H is slightly worse. For flexible films, the overall hardness is already on the high side.

[0032]

[0033] Table 2 Comparison of steel wool wear resistance

[0034] As can be seen from Table 2, the unified test method is to adhere OCA glue on the back and stick it on transparent glass. After bonding, use a degassing machine to degas. After degassing, wipe the surface clean, and put the coated surface upward. The wear-resistant machine is loaded with a 1000g weight. The wear-resistant head is fixed with Japanese Bonstar 0000# steel wool and placed on the film surface. The stroke is 60mm long, and one back and forth grinding is one stroke. There is no scratch after 1000-3000 wear times, which is judged to be OK; after 5000 wear times, there is one scratch, and the overall surface is excellent.

[0035]

[0036]

[0037] Table 3 Environmental Test Grids

[0038] As can be seen from Table 3, the unified test method is to stick OCA glue on the back before the ring test and stick it on the transparent glass. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean. Test double 85 ring test (high temperature 85℃, high humidity 85%). The 100 grids are all 5B for 28 days. Test sunlight resistance (light 0.55w / (m 2 .nm), wavelength 340nm, filter Extended UV-Q / B, 3.8h of light + 1h of darkness as one cycle. The temperature of the blackboard during light exposure is set at 89℃, the temperature of the box is 63℃, and the humidity is 50%; the temperature of the box and blackboard is set at 38℃ and the humidity is 95% during the dark stage. All the environmental tests are 5B for 25-30 days, indicating that the environmental test performance is OK.

[0039] Example 2

[0040] The decorative flexible film of this embodiment includes a PET substrate layer, the substrate layer has a thickness of 250 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 320 nm, and the lower IM layer has a coating thickness of 3.9 μm, and after coating, a 188 μm high-temperature protective film is attached to the lower bottom layer, which has ensured the appearance protection of the film surface and the coating stability during the magnetron sputtering coating process. A primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer by a magnetron sputtering process. The thickness of the primer layer is 30nm. The primer layer can be a TiO2 primer. A 150nm silicon dioxide layer for reducing reflection is plated on the primer layer. A 30nm metal nickel-chromium layer for reducing transmittance is plated on the silicon dioxide layer, wherein the nickel content is 6wt%. A 200nm niobium oxide layer for increasing reflection is plated on the metal nickel-chromium layer. After the magnetron coating, a 190nm AF layer is coated on the surface for resisting oil stains, fingerprints and scratches, which is mainly obtained by coating with a perfluoropolyether coating.

[0041]

[0042]

[0043] Table 4 Environmental Test Grids

[0044] Example 3

[0045] The decorative flexible film of this embodiment includes a PET substrate layer, the substrate layer has a thickness of 100 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 220 nm, and the lower IM layer has a coating thickness of 1.9 μm, and after coating, a 100 μm high-temperature protective film is attached to the lower bottom layer, which has ensured the appearance protection of the film surface and the coating stability during the magnetron sputtering coating process. A primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer by a magnetron sputtering process. The thickness of the primer layer is 20nm. The primer layer can be a TiO2 primer. A 100nm silicon dioxide layer for reducing reflection is plated on the primer layer. A 10nm metal nickel-chromium layer for reducing transmittance is plated on the silicon dioxide layer, wherein the nickel content is 8wt%. A 100nm niobium oxide layer for increasing reflection is plated on the metal nickel-chromium layer. After the magnetron coating, a 100nm AF layer for resisting oil stains, fingerprints and scratches is coated on the surface, which is mainly obtained by coating with a perfluoropolyether coating.

[0046]

[0047] Table 5 Environmental Test Grids

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0049] 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 decorative flexible film, comprising a substrate layer, wherein an upper primer layer and a lower primer layer are formed on both sides of the substrate layer; forming an upper IM layer and a lower IM layer on the upper primer layer and the lower primer layer, respectively; A primer layer, a silicon dioxide layer, a metal nickel-chromium layer, and a niobium oxide layer are sequentially formed on the upper IM layer.

2. The decorative flexible film according to claim 1, characterized in that: The thickness of the primer layer is 2-30 nm.

3. The decorative flexible film according to claim 2, characterized in that: The raw material of the bottom layer is selected from: SiO2, Ti, TiO2, Si, MgF2, and SiO.

4. The decorative flexible film according to claim 1, characterized in that: The thickness of the silicon dioxide layer is 15-150 nm.

5. The decorative flexible film according to claim 1, characterized in that: The thickness of the metal nickel-chromium layer is 1-30 nm.

6. The decorative flexible film according to claim 1, characterized in that: The thickness of the niobium oxide layer is 3-200 nm.

7. The decorative flexible film according to claim 1, characterized in that: The thickness of the substrate layer is 5.7-250 μm.

8. The decorative flexible film according to claim 7, characterized in that: The substrate layer is a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer.

9. A lens, comprising a lens body and a decorative flexible film according to any one of claims 1 to 8 formed on the body.

10. Glasses comprising a frame and the lens according to claim 9 arranged on the frame.

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