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PET film pasted type transparent anti-ultraviolet screen and production method thereof

A technology of anti-ultraviolet and production methods, applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve problems such as insufficient contrast and image depth of field, inconvenient wearing glasses, and lack of signal color, etc. Achieve high production efficiency, remarkable transparent imaging effect, simple production and manufacturing

Active Publication Date: 2017-05-10
SHANGHAI LANMOU MEDIA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the short-wave light emitted by the projector is close to the wavelength of ultraviolet light, defined as 10-400nm (nanometer), the ultraviolet light will diffusely reflect on the human body, causing harm to the human body.
[0003] Most of the base color of the traditional projection screen is white, and the 3D image reflected to the human eye is formed by integrating the misplaced projected image with the help of 3D glasses to form a three-dimensional effect. Not only is it inconvenient to wear glasses, but the imaging definition is low, and the color of the signal itself cannot be obtained The restoration, contrast and image depth of field are not enough, and cannot meet the standards of advertising media and other practical industries

Method used

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  • PET film pasted type transparent anti-ultraviolet screen and production method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Such as figure 1 As shown, a PET film-type transparent anti-ultraviolet projection screen, which includes a PET film layer 3, an adhesive layer 2, and a transparent support layer 1 that are stacked sequentially from top to bottom, and the transparent support layer 1 is transparent polycarbonate board, with a thickness of 0.1 mm, and the adhesive layer 2 is uniformly coated with ethyl acrylate, rosin resin and ethylene glycol at a mass ratio of 2.5:1:2.5 after stirring at 50°C;

[0054] The PET film layer 3 is made of PET resin, antioxidant, light stabilizer and nano particle dispersion in a molten state, mixed uniformly, pre-crystallized and dried, and then extruded and stretched. The nano particle dispersion is composed of nanoparticles , dispersant and solvent are uniformly mixed and then dispersed by ultrasonic waves, the nanoparticles are composed of titanium dioxide nanoparticles and inorganic salt nanoparticles with a mass ratio of 1:9, wherein the titanium dioxid...

Embodiment 2

[0064] Such as figure 1 As shown, a PET film-type transparent anti-ultraviolet projection screen, which includes a PET film layer 3, an adhesive layer 2, and a transparent support layer 1 that are sequentially stacked from top to bottom, and the transparent support layer 1 is a transparent glass plate. The thickness is 20 mm, and the adhesive layer 2 is formed by uniform coating of ethyl acrylate, rosin resin and ethylene glycol with a mass ratio of 3.5:1:3.5 at 60° C.;

[0065] The PET film layer 3 is made of PET resin, antioxidant, light stabilizer and nano particle dispersion in a molten state, mixed uniformly, pre-crystallized and dried, and then extruded and stretched. The nano particle dispersion is composed of nanoparticles , dispersant and solvent are uniformly mixed and then dispersed by ultrasonic waves, the nanoparticles are composed of titanium dioxide nanoparticles and inorganic salt nanoparticles with a mass ratio of 9:1, wherein the titanium dioxide nanoparticle...

Embodiment 3

[0075] Such as figure 1As shown, a PET film-type transparent anti-ultraviolet projection screen, which includes a PET film layer 3, an adhesive layer 2, and a transparent support layer 1 stacked sequentially from top to bottom, and the transparent support layer 1 is a transparent acrylic hardened plate , with a thickness of 10mm, the adhesive layer 2 is uniformly coated with ethyl acrylate, rosin resin and ethylene glycol with a mass ratio of 3:1:3 at 55° C.;

[0076] The PET film layer 3 is made of PET resin, antioxidant, light stabilizer and nano particle dispersion in a molten state, mixed uniformly, pre-crystallized and dried, and then extruded and stretched. The nano particle dispersion is composed of nanoparticles , dispersant and solvent are uniformly mixed and then dispersed by ultrasonic waves, the nanoparticles are composed of titanium dioxide nanoparticles and inorganic salt nanoparticles with a mass ratio of 1:1, wherein the titanium dioxide nanoparticles have an a...

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Abstract

The invention relates to a PET film pasted type transparent anti-ultraviolet screen and a production method thereof. The projection screen comprises a PET thin film layer, an adhesive layer and a transparent support layer stacked from top to bottom successively; PET resin, an anti-oxidant, a light stabilizer and a nano-particle dispersion liquid are melted and mixed uniformly, dried in a pre-crystallization manner and molded by extrusion and stretching to form the PET thin film layer; the nano-particle dispersion liquid is prepared by mixing nano-particles, a dispersant and a solvent uniformly and dispersing a mixture by ultrasonic waves; and the nano-particle distribution density of the PET thin film layer ranges from 0.008 to 1.6 / mm.m2. The production method of the projection screen comprises A) preparing the nano-particle dispersion liquid; B) making the PET film; and C) carrying out coating and film pasting. Compared with the prior art, the projection screen and the production method thereof have the advantages that production technology is simple, the production efficiency is high, the cost is low, the product transparency and sharpness are high, a 2.5D or 3D image can be displayed directly needless of auxiliary equipment, an imaging effect is substantial, use is convenient, the nano-particles can absorb ultraviolet rays under the light transmission condition, and damage of diffuse reflection of the ultraviolet rays on the human body is avoided effectively.

Description

technical field [0001] The invention relates to the field of projection screen production, in particular to a transparent anti-ultraviolet projection screen and a production method thereof. Background technique [0002] Currently, overhead projectors and slide projectors are widely used as a way for speakers to display materials at conferences and the like, and among them, video projectors and movie projectors using liquid crystals are also widely used in ordinary homes. The projection method of these projectors involves modulating light output from a light source with a projection type liquid crystal surface or the like to form image light, and emitting the image light through an optical system such as a lens to be projected onto a screen. When the short-wave light emitted by the projector is close to the wavelength of ultraviolet light, defined as 10-400nm (nanometer), the ultraviolet light will diffusely reflect on the human body, thereby causing harm to the human body. ...

Claims

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Application Information

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IPC IPC(8): G03B21/60G02B27/22G02B30/26
CPCG03B21/60G02B30/26G02B30/34B32B27/36B32B27/18B32B27/365B32B2250/02B32B2264/104B32B2307/732B32B2307/712B32B2307/72B32B2307/558B32B2264/102B32B2255/26B32B2250/24B32B2307/306B32B2255/10B32B7/12B32B27/308B32B27/08B32B2307/412B32B2307/71B32B2307/734B32B17/10C08J5/18C08J2367/02G03B21/62
Inventor 孙绪刚
Owner SHANGHAI LANMOU MEDIA TECH CO LTD
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