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A kind of organic solvent system inkjet printing ink

An inkjet printing and organic solvent technology, which is applied in the field of inkjet printing inks based on organic solvents, can solve the problems of poor ink dispersion stability, inability to print continuously, and low luminous brightness, and achieve strong broadband absorption and stable printing , the effect of high luminous brightness

Active Publication Date: 2017-11-14
广东顺德洋紫薇化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In inkjet printing, a printing device having a discharge nozzle with a diameter of several tens of microns is generally used. When printing an ink containing an existing inorganic phosphor, nozzle clogging is likely to occur, and the dispersion stability of the ink is also deteriorated. The problem of not being able to print continuously and stably for a long time; if the particle size of the phosphor is reduced to the nanometer level, the luminous brightness will be low, which is not practical, and it is difficult to redisperse the primary particles

Method used

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  • A kind of organic solvent system inkjet printing ink
  • A kind of organic solvent system inkjet printing ink
  • A kind of organic solvent system inkjet printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 1. Preparation of YVO 4 :Eu 3+ ,Sr 2+ Nano phosphor

[0012] (1) Add 1.2mmol Na 3 VO 4 12H 2 O was dissolved in a mixed solution containing 5ml of ethylene glycol and 2ml of distilled water; (2) While ultrasonically stirring the above solution (80KHz ultrasonic vibration and 300r / min centrifugal speed stirring), dropwise added 1.5mmol of a certain proportion of Y ( NO 3 ) 3 ·6H 2 O, Eu(NO 3 ) 3 , Sr(NO 3 ) 2 (0.9:0.03:0.07) in 8 ml of ethylene glycol solution, then ultrasonically stirred (80KHz ultrasonic vibration and 300r / min centrifugal speed stirring) for 10min until the solution was clear, and 20ml of distilled water was added; (3) Pour the reaction solution into a volume of In a 50 ml polytetrafluoroethylene-lined autoclave, under vacuum, 200 o C under heat preservation reaction 1h, down to 150 o C under insulation reaction 1h, after the end of the reaction, cooled to room temperature. The resulting suspension was poured out, centrifuged and washed ...

Embodiment 2

[0020] On the basis of embodiment 1, the YVO in the step 3 4 :Eu 3+ ,Sr 2+ with YVO 4 :Eu 3+ , Bi 3+ The weight ratio is changed to 1:0.5, and the rest are the same as in Example 1.

Embodiment 3

[0022] On the basis of embodiment 1, the YVO in the step 3 4 :Eu 3+ ,Sr 2+ with YVO 4 :Eu 3+ , Bi 3+ The weight ratio was changed to 1:0.001, and the rest were the same as in Example 1.

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Abstract

The invention discloses an organic solvent-based inkjet printing ink, which is composed of the following raw materials in parts by weight: 50-60 parts of diethylene glycol diethyl ether, 1-5 parts of polyvinyl butyral, and 0.1-5 parts of surface regulator 0.5 parts, 5-10 parts of red light fluorescent composition, the balance is dipropylene glycol monomethyl ether, making up to 100 parts; the red light fluorescent composition is YVO4:Eu3+, Sr2+@YVO4:Eu3+, Bi3+@SiO2 or YVO4 :Eu3+,Sr2+@YVO4:Eu3+,Bi3+@Ag@SiO2 red fluorescent composition. The organic solvent-based inkjet printing ink containing the red fluorescent composition has good dispersion stability, difficulty in nozzle clogging, stable printing for a long time, high luminous brightness, and only a small amount of red fluorescent light combination.

Description

technical field [0001] The invention relates to an organic solvent-based ink for inkjet printing. Background technique [0002] In the field of art and decoration, on the walls or ceilings of theme parks, hotels, underground passages, trains, etc., artists or craft coating technicians use the above-mentioned paints containing phosphors to draw decorative pictures, etc., and use backlights, etc. Expose it to ultraviolet light to reveal vivid fluorescent color paintings. In inkjet printing, a printing device having a discharge nozzle with a diameter of several tens of microns is generally used. When printing an ink containing an existing inorganic phosphor, nozzle clogging is likely to occur, and the dispersion stability of the ink is also deteriorated. The problem of not being able to print continuously and stably for a long time; if the particle size of the phosphor is reduced to the nanometer level, the luminous brightness will be low, which is not practical, and it is dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/38C09D11/36C09D11/30
Inventor 严梅霞
Owner 广东顺德洋紫薇化工有限公司
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