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Reflective near-ultraviolet cut-off protective film

A near-ultraviolet and protective film technology, applied in coatings and other directions, can solve the problems of high equipment investment, complex process and high cost, and achieve the effect of high light transmittance, simple production process and enhanced brightness.

Inactive Publication Date: 2019-04-30
苏州艾科迪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the complex process of the existing near-ultraviolet cut-off film, high equipment investment, low efficiency and high cost

Method used

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Embodiment Construction

[0022] The technical solution of the present invention will be further described below in combination with specific embodiments.

[0023] 1. First put the tin foil on the flat iron plate and put it in the oven, bake it to 70-90°C (the actual normal is 75-80°C);

[0024] 2. Next, take 10 parts of 10% polyethyleneimine, 10 parts of chiral polymerizable monomer (a), 10 parts of achiral polymerizable monomer (b), 0.6 parts of initiator perketene silane acetal, 0.1 150 parts of leveling agent Solvesso, 20 parts of cyclohexanone, 100 parts of toluene, 0.2 part of curing agent DACH, stir and mix the above-mentioned materials evenly to prepare a near-ultraviolet cut-off polymer coating liquid, use RDS4# wire rod (wet film gap 10 μm ), control the wet film thickness to 2-20 μm and evenly coat it on 50 μm PET without any HC or primer;

[0025] 3. After the coating is completed, put the wet film on the tin foil or iron plate of the oven, bake for 15 seconds to 1 minute, and remove the s...

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Abstract

The invention relates to a reflective near-ultraviolet cut-off protective film which comprises a high transparent thin film substrate, and the surface of the thin film substrate is coated with a near-ultraviolet cut-off coating. The near-ultraviolet cut-off coating is a high-molecular coating with a reflective function, and is assembled by utilizing a high molecular structure, different polymer monomer combinations, initiator dosages and initiation conditions are controlled, a molecular density gradient difference is formed, the high-low refractive index difference of the interior of the highmolecular polymer is realized, high-low refractive index matching is realized, partial reflection of a 400-450 nm waveband is achieved, and a near ultraviolet cut-off function is realized. The reflective near-ultraviolet cut-off protective film is simple in process and only needs to coat the surface of the thin film substrate with the high-molecular coating. The reflective near-ultraviolet cut-offprotective film has good transparency, high hardness, strong adhesion power and good processability, and is beneficial to realization of industrialization. The prepared thin film is widely used as screen protectors of 3C products. At the same time, a part of reflected near-ultraviolet light can also improve the color gamut and enhance the brightness of a product light source.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to a reflective near-ultraviolet cut-off protective film. Background technique [0002] LED and computer background light retain a lot of blue light in the artificial light source, which makes the artificial light whiter and brighter. Some particularly bright white light gives people a feeling of bluish, which is caused by the high proportion of blue light. All kinds of visible light emitted by various new artificial light sources such as computers, TV screens, and energy-saving lamps contain a large amount of short-wave blue light with irregular frequencies. Long-term blue light exposure to the retina will produce free radicals, and these free radicals will lead to the decline of retinal pigment epithelial cells, causing retinopathy and other ophthalmic diseases. [0003] A large amount of blue light exists in computer monitors, fluorescent lamps, mobile phones, digital p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08L67/02C09D4/06
CPCC08J2367/02C08J2479/02C09D4/00C08J7/0427
Inventor 严生吴文杰其他发明人请求不公开姓名
Owner 苏州艾科迪新材料科技有限公司
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