Proportioning process of flat-tube screen-printing fluorescent powder

A phosphor and flat tube technology, which is applied in the field of modulation technology of flat tube screen printing phosphors, can solve the problem that screen printing phosphors are prone to white spots, pink spots, black spots, the viscosity and hardness of the screen printing phosphors do not meet the quality, and the screen printing phosphors are prone to appearing. The problem of unreasonable powder composition and deployment, to achieve the effect of improving quality and reasonable deployment

Inactive Publication Date: 2010-09-22
DONGGUAN ZHAOXIAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing preparation process of screen printing phosphor, the control of impurities, dust, powder spots, etc. is not strict enough during the preparation process, so that the screen printing phosphor is prone to white spots, pink spots, black spots and other undesirable phenomena, and the screen printing phosphor The unreasonable composition and deployment of the screen printing phosphor make the viscosity and hardness of the screen printing phosphor not meet the quality requirements, which seriously affects the quality of the black and white flat picture tube CRT

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below with specific embodiment:

[0022] Prepare powder oil earlier, and the composition of powder oil is ethyl cellulose, terpineol, diethylene glycol butyl ether acetate, ethyl lactate; Mix 400 milliliters of terpineol by every 43 grams of ethyl cellulose, 100 Prepare the ratio of diethylene glycol butyl ether acetate to 100 ml ethyl lactate. For example, when preparing a can of screen-printing fluorescent powder, the powder oil is prepared according to the ratio of 43 grams of ethyl cellulose, 400 milliliters of terpineol, 100 milliliters of diethylene glycol butyl ether acetate, and 100 milliliters of ethyl lactate; For 5 cans of screen printing fluorescent powder, the powder coating oil is prepared according to the ratio of 215 grams of ethyl cellulose, 2000 milliliters of terpineol, 500 milliliters of diethylene glycol butyl ether acetate, and 500 milliliters of ethyl lactate.

[0023] Pour the above measured materi...

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PUM

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Abstract

The invention belongs to the technical field of a screen-printing fluorescent powder proportioning process, in particular to a proportioning process of flat-tube screen-printing fluorescent powder, which comprises the following steps of: step A, proportioning ethyl cellulose, terpineol, diethylene glycol butyl ether acetate and ethyl lactate into oiling powder, wherein every 43g of ethyl cellulose is proportioned with 400ml of terpineol, 100ml of diethylene glycol butyl ether acetate and 100ml of ethyl lactate; step B: filtering the proportioned oiling powder; and step C: proportioning screen-printing fluorescent powder which is prepared by proportioning the components in parts by weight: 10 parts of P45 fluorescent white powder, 5.8 parts of P45 fluorescent blue powder and 4.8 parts of oiling powder. The quality of the fluorescent blue powder can be improved by the invention so as to improve the quality of a black-white flat CRT (Cathode Ray Tube).

Description

Technical field: [0001] The invention belongs to the technical field of fluorescent powder modulation technology, in particular to the modulation technology of flat tube screen printing fluorescent powder. Background technique: [0002] With the continuous development of the national economy, the living standards of the people have gradually improved, the housing conditions of urban residents have been significantly improved, new buildings have sprung up, and the video intercom system matching the building construction has also been rapidly developed. develop. At present, in the video intercom system, the black and white flat picture tube CRT is often used to realize the monitoring function. [0003] Black and white flat picture tube CRT is a narrow-beam high-current electron beam tube that reproduces TV images through electro-optic conversion. Its basic structure includes an electron gun, a deflection system, a fluorescent screen and a glass bulb. The basic working princi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J9/22
Inventor 赵坚
Owner DONGGUAN ZHAOXIAN ELECTRONICS TECH
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