Method for preparing reflective film with light diffusion effect on surface

A technology of reflective film and light diffusion, applied in the field of reflective film, can solve the problems of high processing technology requirements of thin film, non-decreasing yield of thin film, uneven tension of thin film, etc., to achieve excellent light reflection performance and meet mechanical strength. requirements, the effect of reducing manufacturing costs
CN102848587AActive Publication Date: 2013-01-02JIANGSU YUXING FILM TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU YUXING FILM TECH
Publication Date
2013-01-02

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Abstract

The invention relates to a method for preparing reflective film with light diffusion effect on surface. The method includes sending polyester chip subjected to fluidization treatment to drying tower for drying, sending the polyester chip to T-shaped die head via a fuse pipe, a rough filter, a metering pump and a fine filter to extrude slab, subjecting the prepared slab to longitudinal stretching to form polyester film, uniformly coating adhesive containing light diffusion agent on both surfaces of the polyester film, performing lateral stretching, then performing thermoforming, drying and curing the coating layer, wind-cooling, and rolling to obtain the reflective film. The invention can reduce manufacture cost, and the prepared reflective film has better mechanical strength and higher reflectivity.
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Description

technical field

[0001] The invention relates to a method for preparing a reflective film with a light diffusion effect on the surface, and belongs to the technical field of reflective films in liquid crystal display backlight modules. Background technique

[0002] In recent years, reflective films have been widely used in the fields of liquid crystal display reflectors, projection screens, planar light source components, and lighting reflectors. For example, in liquid crystal display reflectors, in order to provide as much light as possible to the liquid crystal display to improve the performance of the backlight, a reflective film with high reflectivity is required in view of the requirements for larger screen size of the device and higher display performance. .

[0003] As a reflective film, the material is generally polyethylene terephthalate (polyethylene terephthalate, PET) or polycarbonate (polycarbonate, PC), by adding inorganic filler particles or incompatible polym...

Claims

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