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Process for preparing light emission film by indirect coating method

A technology of luminescent film and coating method, which is applied in the direction of surface coating liquid device, coating, pretreatment surface, etc., which can solve the problems of low production efficiency, improvement, and unfavorable production efficiency, and achieve long afterglow time and high production efficiency. The effect of flexible process and high luminous brightness

Inactive Publication Date: 2015-05-27
CHANGZHOU HUAWEI ADVANCED MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the existing luminescent film has the disadvantages of complex preparation process and low production efficiency, which is not conducive to the improvement of production efficiency of enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0015] An indirect coating method of the present invention to prepare a luminescent film process; including the following steps:

[0016] (1) Pour the inorganic luminescent material into the polyurethane resin solution with a concentration of 45-50%, and stir to make it evenly mixed. After mixing evenly, let it stand for 5-8h, and conduct defoaming treatment. After defoaming, it can be used as luminous coating;

[0017] (2) Coat the luminous paint on the transparent polyester substrate, dry it in an oven, and form a film after drying;

[0018] (3) Combine the dried light-emitting film with transparent substrate and the selected white substrate to form a film;

[0019] (4) The pressure sensitive adhesive is coated on release paper, heated and dried in a drying oven, and then laminated with the white base material of the light-emitting film to form the light-emitting film.

[0020] Preferably, the inorganic luminescent material in step (1) is a luminescent material that uses sulfides of ...

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Abstract

The invention relates to a process for preparing a light emission film by an indirect coating method. The method comprises the steps of (1) pouring inorganic light emission materials into 45 to 50% by concentration of a polyurethane resin solution, agitating and defoaming to obtain the light emission coating; (2) coating the light emission coating on a transparent polyester substrate, and drying through an oven to obtain the film; (3) combining the dried light emission film with the transparent substrate and the selected white substrate to obtain the film; (4) coating pressure-sensitive glue on release paper, heating and drying through the oven, and then combining with the white substrate of the light emission film to obtain the light emission film. According to the process, the rare earth element doped light emission material is mixed with polyurethane, so that the light emission film has the characteristics of being high in light emission brightness and long in afterglow time; the light emission film production process is flexible.

Description

Technical field [0001] The invention relates to a process for preparing a luminescent film by an indirect coating method. Background technique [0002] The existing luminous film is mainly polyvinyl chloride (PVC) type soft plastic, luminous film, the back contains pressure-sensitive adhesive and release paper, which can be pasted on the surface of various equipment and articles. In addition to having the same application as the rigid board type light-emitting board, it can also be directly cut into various light-emitting graphics, made into light-emitting signs, and pasted where necessary; as a base for light-emitting, it is novel at night or in the dark , Peculiar feeling, and has a certain indicating effect. It can also be used in home decoration, embellishment, or attached to switches, telephones, handles, electrical appliances, as well as stationery, toys, sports goods, entertainment venues, public places such as hotels, corridors, office buildings, theaters, warehouses, ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/28B05D3/02
Inventor 颜奇旭朱小庆蒲溢
Owner CHANGZHOU HUAWEI ADVANCED MATERIAL