Side window film

A technology of window film and optical layer, which is applied in the field of optical materials, can solve the problems of aging, cracking and discoloration of side window film, and achieve the effect of delaying aging and prolonging the service life

Inactive Publication Date: 2018-06-22
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a side shield film to solve the problems of aging, discoloration and even cracking of the side shield film in the prior art after long-term use

Method used

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Embodiment 1

[0039] The provided side shield film is composed of a substrate layer, a first optical layer, a second optical layer and an anti-oxidation layer stacked in sequence, wherein the substrate layer is PET, the thickness is 23 μm, and the visible light transmittance is ≥ 88%; The first optical layer is a Ti layer with a thickness of 3nm; the second optical layer is a stainless steel layer with a thickness of 5nm; the anti-oxidation layer is a Ni layer with a thickness of 5nm.

Embodiment 2

[0041] The provided side shield film is composed of a substrate layer, a first optical layer, a second optical layer and an anti-oxidation layer stacked in sequence, wherein the substrate layer is PET, the thickness is 23 μm, and the visible light transmittance is ≥ 88%; The first optical layer is a Ti layer with a thickness of 3nm; the second optical layer is a stainless steel layer with a thickness of 5nm; the anti-oxidation layer is a Ni layer with a thickness of 10nm.

Embodiment 3

[0043] The provided side shield film is composed of a substrate layer, a first optical layer, a second optical layer and an anti-oxidation layer that are sequentially stacked, wherein the substrate layer is PET with a UV cut-off function, and the thickness is 23 μm; the first optical layer is a Ti layer with a thickness of 3nm; the second optical layer is a stainless steel layer with a thickness of 5nm; the anti-oxidation layer is a Ni layer with a thickness of 20nm.

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Abstract

The invention provides a side window film. The side window film comprises a base material layer, a first optical layer, a second optical layer and an anti-oxidation layer, wherein the first optical layer is arranged on the base material layer; the second optical layer is arranged on the surface, far away from the base material layer, of the first optical layer; refractive indexes of the first optical layer and the second optical layer are different; and the anti-oxidation layer is arranged on the surface, far away from the first optical layer, of the second optical layer. As the first opticallayer and the second optical layer are arranged in the wide window film and the refractive indexes of the first optical layer and the second optical layer form a matching effect, the light transmittance and reflectivity of the side window film are guaranteed; and meanwhile, by using inherent ageing resistance of the two optical layers, the ageing, discoloring and even cracking of the side window film are put off, and the service life of the side window film is prolonged. In addition, by using the anti-oxidation layer arranged on the outermost side, the first optical layer, the second optical layer and the base material layer are effectively stopped from being eroded by water vapor and oxygen in the air, and the service life of the side window film is prolonged.

Description

technical field [0001] The invention relates to the field of optical materials, in particular to a side shield window film. Background technique [0002] Different from the high transmittance of the car front window film, the car side window film has a light transmittance of more than 35% and a reflectivity of less than 30% due to the privacy requirements of the vehicle interior; In terms of UV protection, safety and anti-theft performance, automobile side shield films have higher requirements. With the development of magnetron sputtering technology, common side shield films on the market often sputter a layer of metal or its compounds, stainless steel, etc. on PET. This technology overcomes the shortcomings of high reflection and easy fading of dyed and vacuum-evaporated glass window films, and better meets customer requirements; it has broad market application prospects. [0003] At present, the traditional PET-based side shield film is usually composed of a first dielec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60J1/20C23C14/20C23C14/16C23C14/10C23C14/18C23C14/06
CPCB60J1/20C23C14/0641C23C14/10C23C14/165C23C14/185C23C14/205
Inventor 朱慧尹铮杰许满佳
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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