Luminous ink, printing paste preparation method

1, according to the printing requirements, choose the appropriate particle size luminous powder.

2, the use of neutral or weakly acidic transparent resin, low transparency will affect the luminous effect;

3. The addition ratio is 20%-60% (weight ratio), and 45%-50% is relatively good according to experience;

4, the coating thickness should be greater than 100um, 120-150um (such as 80 screen printing two times about this thickness) will be better;

5, mixing method: It is recommended to first prepare the luminous powder in the container, add the same amount of resin and stir evenly (be careful to avoid the use of metal utensils, stirring stick, otherwise it will reduce the luminous effect), so that the luminous powder is fully moist, eliminate the luminous powder The air on the surface of the pellets should not affect the dispersion of the pellets, and attention must be paid to eliminate the caking phenomenon. If you need to color and add additives can be stirred at the same time (to avoid the use of thick colors and additives containing heavy metal compounds). After mixing, pour into the proportioned resin and stir it evenly.

6, if the use of aqueous slurry or ink, long afterglow luminescent powder must be special micro-encapsulated treatment, whether it is processed, please consult in advance;

7, if the printed item is not white or light color, you should first hit a white background, can increase the luminous brightness;

8, due to a larger proportion of luminous powder, easy to precipitate, with the current use of the current as well, and stirring in use; luminous ink, if not present, it should increase its viscosity, printing, according to the printing speed with thinner To adjust the ink viscosity;

9, the above recommendations for reference, please according to their own products and process characteristics further deepening, refinement.