Manufacturing process of anti-dazzle screen

Abstract

The invention belongs to the technical field of screen manufacturing, and relates to a manufacturing process of an anti-dazzle screen, which comprises the following steps: S1, base material preparation: selecting an optical-grade PET film as a base material, washing with deionized water and gently brushing the PET film with a banister brush, and then blow-drying with dry nitrogen to remove dust, greasy dirt and other impurities on the surface; s2, preparing an anti-dazzle coating solution, namely preparing the anti-dazzle coating solution containing nanoscale silicon dioxide particles, an anti-ultraviolet agent, a wear-resistant agent and a solvent, adding the components into a reaction kettle in proportion, stirring at a high speed of 200-300 revolutions per minute at the temperature of 80-100 DEG C, and performing ultrasonic dispersion for 30-60 minutes at the same time, so that the components are uniformly dispersed to obtain the anti-dazzle coating solution. Stable coating liquid is formed; according to the manufacturing process of the anti-dazzle screen, the manufactured anti-dazzle screen has an excellent anti-dazzle effect through the curing process combining ultraviolet rays and thermocuring and the composite optical gain layer, reflection of ambient light can be effectively reduced, and the definition of a projection picture is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of screen manufacturing, and more particularly to a manufacturing process for an anti-glare screen. Background Art

[0002] The screen refers to the white screen that displays the projection when playing movies. The screen used for projecting movies was originally made of white cloth. Later, diffuse reflection screens made of cloth or plastic coated with barium sulfate or metal powder were mostly used. There are also reflective screens made of glass bead paint, and transmission screens made of translucent materials. In the silent film era, the screen was coated with matte white pigment, the screen surface was flat, fixed with a permanent screen stand, and erected on the projection table; after the birth of sound films, due to the need for sound transmission, a perforated screen was made of rubber and plastic materials, so that the speakers installed behind the screen could emit sound through the screen.

[0003] In the prior art, PET (polyethylene terephthalate) is used to manufacture screens because PET has good transparency, can provide clear image display effects, and has high wear resistance and durability, can withstand frequent use and touch without being easily damaged. Compared with other materials, PET is lighter and easier to carry and install. The overall production cost of using PET to prepare screens is relatively low. PET is also easy to process and manufacture, and can be made into screens of different shapes and sizes to meet the needs of different applications.

[0004] During use, the movie screen will produce a large glare effect, which will affect the viewer's viewing experience. In addition, if the movie screen is exposed to the outside for a long time, dust in the air will be adsorbed on the movie screen, affecting the use effect of the movie screen. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a manufacturing process for an anti-glare screen.

[0006] A manufacturing process for an anti-glare screen comprises the following steps:

[0007] S1. Substrate preparation

[0008] Select optical-grade PET film as the substrate, rinse with deionized water and gently scrub the PET film with a soft brush, then blow dry with dry nitrogen to remove dust, oil and other impurities on the surface;

[0009] S2. Preparation of anti-glare coating liquid

[0010] An anti-glare coating liquid comprising nano-sized silica particles, an anti-ultraviolet agent, an anti-wear agent, and a solvent is prepared. The aforementioned components are added to a reaction kettle in proportion, stirred at a speed of 200-300 rpm at a temperature of 80-100°C, and ultrasonically dispersed for 30-60 minutes to uniformly disperse the components and form a stable coating liquid.

[0011] S3, coating treatment

[0012] The prepared anti-glare coating liquid is coated on the surface of the cleaned PET film through a micro-gravure coating process to form a coating;

[0013] S4. Preliminary curing treatment

[0014] The coated PET film is initially cured by ultraviolet curing, which causes some components in the coating liquid to undergo photopolymerization reaction to form a preliminary cured structure.

[0015] S5. Thermal curing treatment

[0016] The PET film after preliminary curing is transferred to a heat curing oven for heat curing. During the heat curing process, the remaining components in the coating liquid further undergo chemical reactions, causing the coating to be completely cured to form a stable anti-glare structure.

[0017] S6. Composite optical gain layer processing

[0018] On the surface of the cured anti-glare coating, a layer of optical gain layer is compounded through a coating process;

[0019] S7. Surface antistatic coating treatment: Use the dipping method to immerse the coated PET film in the antistatic agent solution for 5-10 minutes, then take it out and dry it naturally.

[0020] Preferably, the PET film in step S1 has a thickness of 50-100 microns, a transmittance of 90-95%, and a haze of 1-2%.

[0021] Preferably, the particle size of the nano-scale silica particles in step S2 is 50-100 nanometers, and the mass fraction in the coating liquid is 10%-20%, the anti-ultraviolet agent is a benzophenone compound, and its mass fraction is 2%-5%, the wear-resistant agent is polytetrafluoroethylene powder, and its mass fraction is 3%-8%, and the solvent is a mixed solution of ethyl acetate and butanone, and the volume ratio of the two is 1:1.

[0022] Preferably, the cell depth of the micro-gravure coating roller in step S3 is 20-30 μm, the coating speed is 5-10 m / min, and the coating temperature is controlled at 25-35°C.

[0023] Preferably, the wavelength of the ultraviolet light source in step S4 is 365 nanometers, the power is 80-100 milliwatts per square centimeter, and the curing time is 10-20 seconds.

[0024] Preferably, the heat curing temperature is set at 80-100°C, the heating rate is 5-10°C / min, and the temperature is maintained for 30-60 minutes.

[0025] Preferably, the optical gain layer in step S5 is made of acrylic resin, and has a thickness of 10-20 microns.

[0026] Preferably, the antistatic agent solution in step S7 is prepared by mixing a quaternary ammonium antistatic agent with deionized water in a mass ratio of 1:10.

Claims

1. A process for manufacturing an anti-glare screen, characterized by: The steps are as follows: S1. Substrate preparation Select optical grade PET film as the substrate, rinse with deionized water and gently scrub the PET film with a soft brush, then blow dry with dry nitrogen to remove dust, oil and other impurities on the surface; S2. Preparation of anti-glare coating liquid An anti-glare coating liquid comprising nano-sized silica particles, an anti-ultraviolet agent, an anti-wear agent, and a solvent is prepared. The aforementioned components are added to a reaction kettle in proportion, stirred at a speed of 200-300 rpm at a temperature of 80-100°C, and ultrasonically dispersed for 30-60 minutes to uniformly disperse the components and form a stable coating liquid. S3, coating treatment The prepared anti-glare coating liquid is coated on the surface of the cleaned PET film through a micro-gravure coating process to form a coating; S4. Preliminary curing treatment The coated PET film is initially cured by ultraviolet curing, which causes some components in the coating liquid to undergo photopolymerization reaction to form a preliminary cured structure. S5. Thermal curing treatment The PET film after preliminary curing is transferred to a heat curing oven for heat curing. During the heat curing process, the remaining components in the coating liquid further undergo chemical reactions, causing the coating to be completely cured to form a stable anti-glare structure. S6. Composite optical gain layer processing On the surface of the cured anti-glare coating, a layer of optical gain layer is compounded through a coating process; S7. Surface antistatic coating treatment: Use the dipping method to immerse the coated PET film in the antistatic agent solution for 5-10 minutes, then take it out and dry it naturally.

2. The process for manufacturing an anti-glare screen according to claim 1, wherein: The PET film in step S1 has a thickness of 50-100 μm, a light transmittance of 90-95%, and a haze of 1-2%.

3. The process for manufacturing an anti-glare screen according to claim 1, wherein: The nano-scale silica particles in step S2 have a particle size of 50-100 nanometers and a mass fraction of 10%-20% in the coating liquid. The anti-ultraviolet agent is a benzophenone compound with a mass fraction of 2%-5%. The wear-resistant agent is polytetrafluoroethylene powder with a mass fraction of 3%-8%. The solvent is a mixed solution of ethyl acetate and butanone, and the volume ratio of the two is 1:

1.

4. The process for manufacturing an anti-glare screen according to claim 1, wherein: The cell depth of the micro-gravure coating roller in step S3 is 20-30 μm, the coating speed is 5-10 m / min, and the coating temperature is controlled at 25-35°C.

5. The process for manufacturing an anti-glare screen according to claim 1, wherein: The wavelength of the ultraviolet light source in step S4 is 365 nanometers, the power is 80-100 milliwatts per square centimeter, and the curing time is 10-20 seconds.

6. The process for manufacturing an anti-glare screen according to claim 1, wherein: The heat curing temperature is set at 80-100°C, the heating rate is 5-10°C / min, and the temperature is maintained for 30-60 minutes.

7. The process for manufacturing an anti-glare screen according to claim 1, wherein: The optical gain layer in step S5 is made of acrylic resin, and has a thickness of 10-20 microns.

8. The process for manufacturing an anti-glare screen according to claim 1, wherein: The antistatic agent solution in step S7 is prepared by mixing a quaternary ammonium salt antistatic agent with deionized water in a mass ratio of 1:10.