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Reflecting film

A technology of reflective film and optical surface, applied in the optical field, can solve the problems of reduced reflective brightness and scratches of reflective film

Inactive Publication Date: 2018-05-18
NINGBO EXCITON 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 reflective brightness of the reflective film is reduced and scratched when exposed to the external environment, the present invention provides a reflective film

Method used

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Examples

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preparation example Construction

[0068] The present invention also provides a method for preparing a reflective film, the method comprising the following steps:

[0069] (1) Coating solution for anti-fouling and anti-scratch coating: add each component of the coating solution into the barrel according to the ratio, stir and disperse until the mixture is uniform, and then filter to obtain a UV-curable coating;

[0070] (2) coating the first optical surface of the substrate layer with the coating solution of step (1), and curing the coating solution under ultraviolet light irradiation to obtain an anti-fouling and anti-scratch coating;

[0071] (2) preparing a microprism structure layer on the second optical surface of the substrate layer;

[0072] (3) bonding the bonding layer on the second optical surface of the sealing layer, pressing the microprism structure layer in the step (2) tightly on the first optical surface of the sealing layer;

[0073] (4) The adhesive layer on the second optical surface of the ...

Embodiment 1

[0079] The present invention provides a reflective film, which comprises an antifouling and scratch-resistant coating 10 , a substrate layer 11 , a microprism structure layer 12 , a sealing layer 13 , an adhesive layer 14 and a peeling layer 15 in sequence.

[0080] The coating solution of the antifouling and anti-scratch coating comprises 25% acrylate oligomer, 30% reactive diluent, 0.3% antifouling additive, 0.5% leveling agent, 1% photoinitiator Agent, 43.2% solvent, said percentage is weight percentage.

[0081] Described acrylate oligomer is polyether acrylate oligomer and urethane acrylate oligomer, and the weight ratio of the two is 1:4; Reactive diluent is butyl acrylate, pentaerythritol tetraacrylate, the weight of both The ratio is 3:2; the antifouling additives are perfluorobutyl acrylate and pentafluorooctyl acrylate, and the weight ratio of the two is 1:1; the leveling agent is polyether modified siloxane; the photoinitiator is (1-hydroxycyclohexyl phenyl ketone ...

Embodiment 2

[0084] For the reflective film provided in Example 1, the coating solution of the antifouling and scratch-resistant coating includes 35% acrylate oligomer, 35% reactive diluent, 0.5% antifouling additive, 0.3% Leveling agent, 2% photoinitiator, 27.2% solvent, said percentage is weight percentage.

[0085] Described acrylate oligomer is polyester acrylate oligomer and polyurethane acrylate oligomer, and the weight ratio of the two is 3:7; Reactive diluent is tripropylene glycol diacrylate (TPGDA), trimethylol Propane tri(meth)acrylate (TMPTA), the weight ratio of the two is 1:1; the antifouling additive is perfluorobutyl methacrylate and pentafluorooctyl methacrylate, and the weight ratio of the two is 1:1; leveling agent is polyether modified siloxane; photoinitiator is (2-hydroxy-methylphenyl propane-1-one (1173), 2,4,6 (trimethylbenzoyl Diphenylphosphine oxide) (TPO), the weight ratio of the two is 3:2; the solvent is ethyl acetate, butyl acetate, and the weight ratio of th...

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Abstract

The invention relates to the technical field of optics and in particular relates to a reflecting film. In order to solve the problems that the reflecting brightness of the reflecting film is reduced and the reflecting film is scratched when the reflecting film is exposed to the external environment and is used, the invention provides the reflecting film. The reflecting film comprises a pollution-prevention and scratching-resisting coating, a substrate layer, a micro-prism structure layer, a sealing layer, a bonding layer and a stripping layer in sequence. When being exposed in the external environment and actually utilized, the reflecting film provided by the invention has the advantages of hydrophobic, oleophobic, pollution-prevention and scratching-resisting properties.

Description

technical field [0001] The invention relates to the field of optical technology, in particular to a reflective film. Background technique [0002] Microprism retroreflective material (microprism reflective film) uses the cube corner microprism unit surrounded by a medium with a low refractive index or covered with a reflective structural unit, through optical principles such as total reflection and specular reflection, most of the incident light is emitted along the The direction of the light source is reflected back, and it is a new type of reflective film with high reflective brightness. Widely used in various road traffic safety signs, traffic safety facilities and other fields, it can play an obvious role in safety warning. [0003] When the outer surface of the reflective film is exposed to moisture, dirt, hard objects, etc., phenomena such as condensation, dirt absorption, and scratches will occur. These phenomena will cause optical effects such as refraction and abso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/38C08J7/04C09D175/14C09D171/02C09D5/16C09D167/06C09D163/10C08L67/02C08L69/00C08L27/06C08L33/12G02B5/126
CPCC08J7/0427C08J2367/02C08J2427/06C08J2433/12C08J2469/00C09D5/1687C09D163/10C09D175/14C09J2203/318C09J2301/122C09J2301/302C09J2301/312C09J2433/00C09J2463/00C09J2475/00G02B5/126C08L71/02C08L67/06C08L75/14C08L63/10
Inventor 李刚余洋张毅薛永富顾春红陈建文张彦唐海江
Owner NINGBO EXCITON TECH
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