Colorful optical film

Abstract

The utility model discloses a colorful optical film which can avoid complex process steps when being attached to a lens, and has the properties of wear resistance, corrosion resistance, falling prevention and the like. The colorful optical film comprises a first film layer, a second film layer, a third film layer, a fourth film layer and a fifth film layer which are sequentially stacked from top to bottom. The first film layer and the fifth film layer are protective films; the second film layer is a TAC reinforced film layer; the third film layer is a liquid crystal colorful reflecting layer; and the fourth film layer is a TAC white common layer, an anti-UV film, a polarizing film, a monochromatic film or a color-changing film. According to the utility model, the film material with the performances of dazzling color, wear resistance, corrosion resistance and the like is prepared by adopting the existing process and the existing material, the film material has certain flexibility, and compared with the traditional electroplating film which needs to be subjected to single-piece electroplating after being cut and bent by baking, the processing process is simpler, and the complicated steps and low yield of electroplating treatment piece by piece in the electroplating process are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of lens production technology, especially a kind of dazzling color optical film. BACKGROUND

[0002] Traditional sunglasses mostly adopt the mode of plating a layer of reflecting layer on the surface of lens to make the surface of lens have reflecting function.Electroplating layer needs to match the arc of lens surface, and also needs to be baked before electroplating.The surface is prone to crack in the baking process because the electroplating layer is mostly metal material, so the complete process flow is to cut the electroplating layer into small pieces and bake, then electroplate piece by piece, which has high manufacturing cost.Although the lens has reflecting effect after electroplating, it is also easy to be scratched by hard objects in daily use, for example, when the user wipes the lens with rough paper towel or cloth, the electroplating layer may be scratched, resulting in the decline of optical performance of the lens and the impact on clarity.If the lens is not properly maintained, for example, frequently exposed to high temperature environment, or using some corrosive cleaning products, and exposed to seaside air and seawater, etc., the electroplating layer may fall off from the surface of lens, thereby affecting the function of the lens, and the color is single. SUMMARY

[0003] The main purpose of the utility model is to provide a dazzling color optical film, which solves the problems in the prior art, avoids complex process steps when laminating with lens, and has the properties of wear resistance, corrosion resistance, and avoiding falling off.

[0004] In order to achieve the above purpose, the solution of the utility model is as follows:

[0005] A dazzling color optical film, comprising first film layer, second film layer, third film layer, fourth film layer and fifth film layer which are stacked from top to bottom; the first film layer and the fifth film layer are protective films; the second film layer is a TAC reinforced film layer; the third film layer is a liquid crystal dazzling color reflecting layer; and the fourth film layer is a TAC white layer, an anti-UV film, a polarizing film, a monochromatic film or a color-changing film.

[0006] The material of the first film layer is PVC.

[0007] Preferably, the fifth film layer is an electrostatic film.

[0008] Preferably, the material of the fifth film layer is PE.

[0009] The thickness of the first film layer and the fifth film layer is 10-15 μm.

[0010] The thickness of the second film layer is 180-200 μm.

[0011] The thickness of the third film layer is 2 μm, and the light reflectivity is 8-10%.

[0012] The fourth film layer has a thickness of 180-200 μm.

[0013] After the technical scheme is applied, the present application has the following technical effects:

[0014] The present application has the film material with the properties of color flash, wear resistance, corrosion resistance and the like, which is made of the existing process and the existing material, has certain flexibility, and compared with the traditional electroplating film, needs to be cut, baked and bent, and then electroplated, the processing technology is simpler, avoids the complicated steps and low good product rate of the electroplating, the third film layer is protected inside the second film layer and the fourth film layer, the second film layer and the fourth film layer are used to isolate and protect the third film layer, there are no problems such as scratch, corrosion and falling, the color is richer, and the same base color system can present rich and colorful color changes when observed from different angles. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The present application is a layer structure schematic diagram of a specific embodiment.

[0016] REFERENCE SIGNS:

[0017] 1-first film layer; 2-second film layer; 3-third film layer; 4-fourth film layer; 5-fifth film layer. DETAILED DESCRIPTION

[0018] In order to further explain the technical scheme of the present application, the present application will be described in detail through specific embodiments.

[0019] REFERENCE Figure 1 The present application discloses a color flash optical film, which comprises a first film layer 1, a second film layer 2, a third film layer 3, a fourth film layer 4 and a fifth film layer 5 which are stacked in order from top to bottom.

[0020] The first film layer 1 and the fifth film layer 5 are protective films.

[0021] The second film layer 2 is a TAC (Triacetyl Cellulose) reinforced film layer.

[0022] The third film layer 3 is a liquid crystal color flash reflection layer.

[0023] The fourth film layer 4 is a TAC white layer, an anti-UV film, a polarized film, a monochromatic film or a color-changing film.

[0024] By the above scheme, the utility model discloses the film material with the performance of dazzling color and wear resistance, corrosion resistance etc. is made of existing process and existing material, has certain flexibility, compared with traditional electroplating film needs to be carried out single piece electroplating after cutting, baking and bending, and the processing technology is simpler, avoids the complicated steps and low good product rate of electroplating needing piece by piece electroplating treatment, the third film layer 3 is protected in the inside of the second film layer 2 and the fourth film layer 4, the second film layer 2, the fourth film layer 4 are used to isolate and protect the third film layer 3, there is no problem such as scratching, corrosion, falling off, and the color is richer, and the same base color system can also present rich colorful color change when observing from different angles.

[0025] The following shows the specific embodiments of the utility model.

[0026] The material of the above-mentioned first film layer 1 is PVC, the fifth film layer 5 is an electrostatic film, preferably made of PE, and the thickness of both is 10-15 μm.

[0027] The above-mentioned second film layer 2 has strong wear resistance and pressure resistance, and can be used as the outermost layer of the lens after compounding, and the thickness is 180-200 μm.

[0028] The above-mentioned third film layer 3 has rich color, can present various changing colors when observed from different angles, and can effectively reflect sunlight, has a more beautiful and cool appearance, and the thickness is 2 μm, and the light reflectivity is 8-10%. Specifically, the liquid crystal molecules present a specific orientation arrangement, when light is irradiated, different orientation liquid crystal molecules will produce different refraction, reflection and scattering effects on light, thereby presenting rich colorful color change when observed from different angles; has a unique visual effect, can meet the needs of people for personalization and beauty; has good light transmission, does not obviously block the line of sight while presenting the color effect, can ensure clear vision, is beautiful and does not affect the visual function. Moreover, the third film layer 3 has good physical properties and chemical stability, good weather resistance, aging resistance, chemical corrosion resistance and other properties, and can maintain stable performance and appearance in long-term use.

[0029] The above-mentioned fourth film layer 4 is a protective layer of the third film layer 3, and the combined product can be combined with different functional film layers, and the thickness is 180-200 μm.

[0030] The processing process of the utility model is as follows:

[0031] (1) cover the HC surface of the second film layer 2 with a protective film, and then saponify the other surface;

[0032] (2) The liquid crystal material is mixed with specific resin, solvent and the like to prepare a liquid crystal coating liquid, and then the liquid crystal coating liquid is uniformly coated on a substrate film such as PET by using a coating process, and then high-temperature drying and UV light curing treatment are performed to make the liquid crystal molecules form specific orientation and arrangement on the surface of the substrate film, thereby obtaining a third film layer 3, i.e. a liquid crystal color reflection layer;

[0033] (3) After the third film layer 3 is combined with the second film layer 2, the substrate film is torn to combine the third film layer 3 with a fourth film layer 4, thereby obtaining a composite film containing a color reflection function;

[0034] (4) According to different product requirements, the fifth film layer 5 on the surface of the fourth film layer 4 is torn, the composite film obtained in (3) is combined with different products, thereby obtaining a lens roll stock containing a color reflection function, and finally cutting, baking and cutting are performed according to different lens sizes.

[0035] The above embodiments and drawings are not limited to the product form and style of the present application, and any appropriate changes or modifications made by those skilled in the art should be considered as falling within the scope of the present application.

Claims

1.A color-shifting optical film, characterized in that: comprising a first film layer, a second film layer, a third film layer, a fourth film layer and a fifth film layer stacked in order from top to bottom; the first film layer and the fifth film layer are protective films; the second film layer is a TAC reinforcing film layer; the third film layer is a liquid crystal color-shifting reflective layer; the fourth film layer is a TAC white film, an anti-UV film, a polarizing film, a monochromatic film or a color-changing film. 2.The color-shifting optical film of claim 1, characterized in that: the material of the first film layer is PVC. 3.The color-shifting optical film of claim 2, characterized in that: the fifth film layer is an electrostatic film. 4.The color-shifting optical film of claim 3, characterized in that: the material of the fifth film layer is PE. 5.The color-shifting optical film of claim 1, characterized in that: the thickness of the first film layer and the fifth film layer is 10-15μm. 6.The color-shifting optical film of claim 1, characterized in that: the thickness of the second film layer is 180-200μm. 7.The color-shifting optical film of claim 1, characterized in that: the thickness of the third film layer is 2μm, and the light reflectivity is 8-10%. 8.The color-shifting optical film of claim 1, characterized in that: the thickness of the fourth film layer is 180-200μm.

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