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Printing ink for ink jet printing of organic solvent system

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: 2016-01-06
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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  • Printing ink for ink jet printing of organic solvent system
  • Printing ink for ink jet printing of organic solvent system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0012] (1) Add 1.2mmolNa 3 VO 4 12H 2 O was dissolved in a mixed solution containing 5ml ethylene glycol and 2ml distilled water; (2) The above solution was ultrasonically stirred (80KHz ultrasonic vibration and 300r / min centrifugal speed stirring) and added dropwise with a certain proportion of 1.5mmol Y ( NO 3 ) 3 ·6H 2 O,Eu(NO 3 ) 3 ,Sr(NO 3 ) 2 (0.9:0.03:0.07) in 8ml of ethylene glycol solution, then ultrasonically stirred (80KHz ultrasonic vibration and 300r / min centrifugal speed stirring) for 10min until the solution was clear, then added 20ml of distilled water; (3) Pour the reaction solution into a volume of 50ml In a polytetrafluoroethylene-lined autoclave, in a vacuum environment, 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 3...

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 printing ink for ink jet printing of an organic solvent system. The printing ink is prepared from the following raw materials in parts by weight: 50 to 60 parts of diethylene glycol diethyl ether, 1 to 5 parts of polyvinyl butyral, 0.1 to 0.5 part of surface regulator, 5 to 10 parts of red fluorescent composition and dipropylene glycol monomethyl ether as the rest up to 100 parts, wherein the red fluorescent composition is YVO4:Eu<3+>,Sr<2+>@YVO4:Eu<3+>,Bi<3+>@SiO2 or YVO4:Eu<3+>,Sr<2+>@YVO4:Eu<3+>,Bi<3+>@Ag@SiO2 red fluorescent composition. The printing ink for the ink jet printing of the organic solvent system, which contains the red fluorescent composition, has the advantages of good dispersion stability, difficulty in nozzle clogging, long-time stability in printing and high luminance, and only a small quantity of the red fluorescent composition is needed.

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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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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