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High-brightness PET reflective film

A high-brightness, reflective technology, used in pressure-sensitive films/sheets, film/sheet-like adhesives, optics, etc. Anti-scratch performance, extended service life, improved reflective effect

Inactive Publication Date: 2020-06-19
瑞年新材料(广东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of poor external light conditions, the effect of the reflective film is very limited and difficult to detect. In traffic facilities, it will be reflected that the driver cannot clearly see the warning signs, leaving a potential safety hazard.
Moreover, when the outer surface of the reflective film is exposed to moisture, dirt, hard objects and other environments for a long time, water droplets will condense, absorb dirt, scratches, etc., and these phenomena will cause incident light to refract, absorb, etc. Optical effect, thereby changing the path of incident light, absorbing the emitted light or reflected light of incident light and reducing the incident light reaching the reflective film, which seriously weakens the reflective effect of the reflective film and reduces the service life of the reflective film

Method used

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  • High-brightness PET reflective film
  • High-brightness PET reflective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of high brightness PET reflective film:

[0033] 1) Evenly disperse nano-zirconia, nano-alumina and nano-silicon dioxide into absolute ethanol through a planetary ball mill, and then compound with a high-hardness silicone resin with a mass content of 70%, and then coat it To the side of the carrier layer containing PET, and finally perform infrared curing treatment to obtain an anti-fouling, anti-scratch and anti-reflection layer;

[0034] 2) preparing a microprism structure layer by casting on the other side of the carrier layer, the microprism layer comprising several cube-corner prism array structural units;

[0035] 3) one side of the PET release layer is coated with a pressure-sensitive adhesive layer containing 2-ethylhexyl acrylate / butyl acrylate / acrylic acid copolymer, an aluminum coating is deposited on the surface of the pressure-sensitive adhesive layer, and then the microprism The layers are pressed tightly against the aluminum coating.

Embodiment 2

[0037] Preparation of high brightness PET reflective film:

[0038] 1) Evenly disperse nano-magnesium fluoride, nano-titanium dioxide and nano-alumina into absolute ethanol through a planetary ball mill, then compound with high-hardness silicone resin with a mass content of 75%, and then coat it on The side of the carrier layer containing PET is finally subjected to infrared curing treatment to obtain an anti-fouling, anti-scratch and anti-reflection layer;

[0039] 2) preparing a microprism structure layer by casting on the other side of the carrier layer, the microprism layer comprising several cube-corner prism array structural units;

[0040] 3) Coating a sensitive adhesive layer containing isooctyl acrylate / acrylic acid copolymer pressure on one side of the PET release layer, depositing a silver coating on the surface of the pressure sensitive adhesive layer, and then pressing the microprism layer tightly on the silver coating .

Embodiment 3

[0042] Preparation of high brightness PET reflective film:

[0043] 1) Nano-magnesium fluoride and nano-titanium dioxide are uniformly dispersed in absolute ethanol through a planetary ball mill, and then compounded with a high-hardness silicone resin with a mass content of 80%, and then coated on the carrier layer containing PET One side, and finally carry out infrared curing treatment to obtain anti-fouling anti-scratch anti-reflection layer;

[0044] 2) preparing a microprism structure layer by casting on the other side of the carrier layer, the microprism layer comprising several cube-corner prism array structural units;

[0045] 3) One side of the PET release layer is coated with a pressure-sensitive adhesive layer containing 2-ethylhexyl acrylate / butyl acrylate / acrylic acid copolymer and isooctyl acrylate / acrylic acid copolymer, and on the surface of the pressure-sensitive adhesive layer A copper coating is deposited, and the microprism layer is pressed against the copp...

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Abstract

The invention belongs to the technical field of films, in particular to a high-brightness PET reflective film. The reflective film comprises a release layer, a pressure-sensitive adhesive layer, a reflective layer, a microprism layer, a carrier layer and an antifouling scratch-resistant anti-reflection layer which are stacked in sequence, the carrier layer contains polyethylene glycol terephthalate, the antifouling scratch-resistant anti-reflection layer is formed by coating and curing high-hardness organic silicon resin added with inorganic nano powder, and the inorganic nano powder comprisesat least one of nano zirconium oxide, nano magnesium fluoride, nano magnesium nitride, nano titanium dioxide, nano aluminum oxide and nano silicon dioxide. Compared with the prior art, the high-brightness PET reflective film has the advantages that the film has excellent reflective brightness and long service life, can replace previous glass, can be applied to reflective glass or previous mirrorglass, can prevent breakage, can also be used as a decoration, and is convenient and practical.

Description

technical field [0001] The invention belongs to the technical field of films, in particular to a high-brightness PET reflective film. Background technique [0002] Reflective film, which reflects most of the incident light back along the direction of the emitting light source, is a film with a certain degree of reflective brightness. It is widely used in various road traffic safety signs and traffic safety facilities, and can play an obvious safety warning role. However, in the case of poor external light conditions, the effect of the reflective film is very limited and difficult to detect. In traffic facilities, it will be reflected that the driver cannot clearly see the warning signs, leaving potential safety hazards. Moreover, when the outer surface of the reflective film is exposed to moisture, dirt, hard objects and other environments for a long time, water droplets will condense, absorb dirt, scratches, etc., which will cause incident light to refract, absorb, etc. Op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/124G02B5/08G02B1/14G02B1/18C09J7/29C09J7/38C09J133/08C08J7/04C09D183/04C09D7/61C09D5/16C08L67/02
CPCC08J2367/02C08J2483/04C08K2003/166C08K2003/2227C08K2003/2241C08K2003/2244C08K2201/011C09D5/1675C09D5/1687C09D183/04C09J133/064C09J2433/00C09J2467/006C09J7/29C09J7/385G02B5/0808G02B5/124G02B1/14G02B1/18C08K3/22C08K3/36C08K3/16C08K3/28
Inventor 王家福
Owner 瑞年新材料(广东)有限公司
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