High-stiffness reflecting film and manufacturing method thereof

A reflective film and high stiffness technology, applied in the field of reflective film, can solve the problems of reduced film stiffness, decreased reflective film density, and film bending, and achieves the effects of improving stiffness, reducing production costs, and improving yield

Active Publication Date: 2013-12-25
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, the reflective film with microbubbles is full of voids, which leads to a decrease in the density of the reflective film and a decrease in the stiffness of the film. Specifically, when it is used, the film will bend, especially in TVs, liquid crystal displays, advertisements, etc. It is more serious in areas such as light boxes that require the diaphragm to be placed vertically

Method used

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  • High-stiffness reflecting film and manufacturing method thereof

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] refer to figure 1 , a high stiffness reflective film, comprising a reflective film base layer 1, microbubbles 2 are provided in the reflective film base layer 1, and the material of the reflective film base layer 1 is PET;

[0021] The reflective film base layer 1 is provided with a diffusion film 3, and the diffusion film 3 is composed of the following components:

[0022] Polymethyl methacrylate: 20 parts by mass

[0023] Polyisocyanate: 15 parts by mass

[0024] Diffusing particles: 1 to 3 parts by mass. The diffusion particles are preferably titanium dioxide particles. Titanium dioxide has two types: rutile type and anatase type. Since the crystal structure of rutile type titanium dioxide is dense, the refractive index is high, and the refractive index difference with polyester resin is large, a highly reflective interf...

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Abstract

The invention discloses a high-stiffness reflecting film. The high-stiffness reflecting film comprises a reflecting film basic layer, where microbubbles are arranged inside the reflecting film basic layer, the reflecting film basic layer is made of PET, and a diffusion layer is arranged on the reflecting film basic layer. The reflecting film is composed of, by mass, 20 parts of polymethyl methacrylate, 15 parts of polyisocyanates and 1-3 parts of diffusion particles. According to the manufacturing method of the high-stiffness reflecting film, the reflecting film basic layer is prepared firstly; then coating liquid is prepared, wherein the coating liquid is prepared by even mixing of the 20 parts of polymethyl methacrylate, the 15 parts of polyisocyanates and the 1-3 parts of diffusion particles; the coating liquid coats the reflecting film basic layer after being prepared, then the reflecting film basic layer is placed in an oven to be dried for one minute at the temperature of 130 DEGC, and the reflecting film is obtained. The high-stiffness reflecting film has the advantages that light reflected by the reflecting film is evener and softer, and production cost can be reduced due to the fact that both the reflecting property and the diffusion property can be achieved by one reflecting film.

Description

(1) Technical field [0001] The invention relates to a reflection film and a preparation method of the reflection film. (2) Background technology [0002] With the advent of the digital age, liquid crystal displays (LCDs) have become the most ubiquitous display technology today. Because LCD has the advantages of environmental protection, low energy consumption, low radiation, soft picture, etc., LCD will be the mainstream display technology in the next few decades. The LCD is a non-luminescent display device, which needs a backlight source to achieve the display function. The performance of the backlight will directly affect the image quality of the LCD. The cost of the backlight accounts for 3-5% of the LCD module, and the power consumption accounts for 75% of the module. It is a very important component in the LCD module. High-definition and large-size LCDs must be supported by high-performance backlight technology. Therefore, while the LCD industry is striving to develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/08G02B1/10B32B33/00
Inventor 罗培栋樊华伟
Owner NINGBO DXC NEW MATERIAL TECH
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