Anti-scraping reflector plate and preparation method thereof

A reflective sheet and anti-scratch technology, which is applied in the field of polyester film, can solve the problems of easily producing shadows and easily scratching the light guide plate, and achieve the effects of preventing adsorption, simple process, and avoiding scratching the light guide plate

Active Publication Date: 2015-05-13
NINGBO CHANGYANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing reflective sheet is easy to scratch the light guide plate and produce dark shadows, the present invention provides an anti-scratch reflective sheet and its preparation method

Method used

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  • Anti-scraping reflector plate and preparation method thereof
  • Anti-scraping reflector plate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] The reflection sheet provided by the invention can effectively prevent the reflection sheet from scratching the light guide plate. Including the main layer of the reflective sheet and the auxiliary layer with excellent scratch resistance, the main layer of the reflective sheet contains TiO with a mass fraction of 5% 2 , the average particle size of the particles is 0.2 μm, and the mass fraction is 10% polypropylene resin (produced by Borealis, the product model is WF420HMS), 85% polyester resin (PET film grade chips produced by China Yizheng Chemical Fiber Co., Ltd., commodity The grade is FG620); the auxiliary layer of the reflector contains Al with a mass fraction of 3% 2 o 3 Particle (Jiangyan City, Jiangsu East Coating Material Factory production), the average particle diameter of the particle is 5 μ m, and the mass fraction is 8% antistatic agent (the plastic antistatic agent 006 produced by Zhongteng Chemical Co., Ltd.), the mass fraction is 5% Hindered amine li...

Embodiment 2

[0083] Reflector as provided in Example 1, except that the Al in the auxiliary layer 2 o 3 A reflection sheet was produced in the same manner as in Example 1 except that the average particle diameter of the particles was changed to particles of 10 μm. The evaluation results are summarized in Table 1.

Embodiment 3

[0085]Reflector as provided in Example 1, except that the Al in the auxiliary layer 2 o 3 A reflective sheet was produced in the same manner as in Example 1 except that the average particle diameter of the particles was changed to particles of 15 μm. The evaluation results are summarized in Table 1.

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Abstract

The invention relates to the field of a polyester film and in particular to a white polyester anti-scraping reflector plate with excellent anti-scraping performance and a preparation method thereof. To solve the problems of easy scraping of light guide plates and easy generation of shadows in the present reflector plate, the invention provides an anti-scraping reflector plate, comprising a main layer of the reflector plate and an auxiliary layer on the main layer; the main layer comprises a thermoplastic resin, in which micropores are formed; the auxiliary layer comprises 75-85 wt% of polyethylene glycol terephthalate, 0.1-0.5 wt% of inorganic filler particles, 5-10 wt% of antistatic agent, 3-8 wt% of light stabilizer and 1-5 wt% of ultraviolet absorber; the average grain size of the inorganic filler particles is 5-20 microns. The anti-scraping reflector plate is capable of preferably preventing the light guide plate from being scraped, preferably preventing the light guide plate and the reflector plate from being absorbed and does not generate shadows.

Description

technical field [0001] The invention relates to the field of polyester films, in particular to a white polyester anti-scratch reflective sheet with excellent anti-scratch performance and a preparation method thereof. Background technique [0002] Liquid crystal display devices include a backlight system in which a light source is placed on the back of a backlight unit and an edge light system in which a light source is placed on a side. As the overall thickness of LCD backlight modules decreases, more and more direct-type and side-type models with short OD are selected. In the side-entry type, it is necessary to apply a light guide plate to convert the light from a point light source to a surface light source, but ordinary reflectors will be adsorbed on the light guide plate, causing shadows and other undesirable phenomena. Therefore, it is necessary to coat a layer of substance on the surface of the reflector to avoid adsorption. [0003] In the past, in order not to scra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/08G02B1/04G02B1/14C08L67/02C08L23/12C08K13/02C08K3/36C08K3/22
CPCC08K2201/003C08L67/02G02B1/04G02B5/0816C08L23/12C08K13/02C08K2003/2241C08K2003/2227C08K3/36
Inventor 金亚东李金标
Owner NINGBO CHANGYANG TECH
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