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Ultraviolet cured color transfer screen printing fluorescent paint and preparation method thereof

A technology of color conversion and screen printing, applied in the direction of luminescent paint, coating, etc., can solve the problems of unsatisfactory color and brightness, and achieve the effect of high conversion rate, bright color and guaranteed efficiency

Inactive Publication Date: 2014-08-20
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional color conversion film uses inorganic substances, but its color and brightness are not ideal

Method used

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  • Ultraviolet cured color transfer screen printing fluorescent paint and preparation method thereof
  • Ultraviolet cured color transfer screen printing fluorescent paint and preparation method thereof
  • Ultraviolet cured color transfer screen printing fluorescent paint and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1-5

[0024] (1) Raw material formula:

[0025]

[0026] (2) Preparation method: weigh various raw materials according to the above formula and mix uniformly in proportion, then stir evenly with a stirring grinder, and then grind until the required fineness of the coating is below 50um. Print the prepared coating on a clean and dry glass sheet by screen printing, with a thickness of 20 μm, and then cure it on a UV curing machine (under a 5000W UV lamp, exposure for 2 seconds). An ultraviolet light-curable fluorescent color conversion film is obtained.

[0027] Photoinitiator selection:

[0028] The colorless and transparent varnish film should be the basis of the color conversion film. Since the photoinitiator generates a large number of free radicals during the curing process, the type and activity of the free radicals will inevitably affect the color and service life of the varnish film. Impact. Therefore, it is very necessary to study the initiator on the yellowness of the ...

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Abstract

The invention provides an ultraviolet cured color transfer screen printing fluorescent paint. The fluorescent paint is characterized by being prepared from the following raw materials: 10-50wt% of acrylic resin, 5-30wt% of active monomer, 5-50wt% of fluorescent pigment, 2-8wt% of photo-initiator, 0.5-10wt% of dispersant, 0.5-5wt% of defoaming agent, 0.5-5wt% of flatting agent and 0.5-5wt% of adhesion promoter. After the fluorescent paint disclosed by the invention is screen-printed on a display screen, the fluorescent paint can be cured only by UV irradiation or heating, so that the process is simple, the cost is low, and the film transfer efficiency is high.

Description

technical field [0001] The invention relates to an ultraviolet light curing color conversion screen printing fluorescent paint and a preparation method thereof. Background technique [0002] The working principle of the traditional mobile phone display is to excite the inorganic phosphor with alternating current to emit visible light, and the visible light can be converted into various colors through the color conversion film. For example, with a single high-brightness blue phosphor as the basic light source, through a color conversion film, the blue light is converted into red and green light in the red and green dot matrix required by the color display, so as to achieve the effect of a color screen. The traditional color conversion film uses inorganic substances, but its color and brightness are not ideal. [0003] For UV-curable coatings, in addition to diluting the monomer in the UV-curable system, its functional structure also constitutes an important part of the cured...

Claims

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Application Information

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IPC IPC(8): C09D4/02C09D4/06C09D7/12C09D5/22
Inventor 刘晓
Owner DONGHUA UNIV
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