Mixing the luminous pigment with transparent printing ink, the luminous printing ink come into being. The products which is printed by this kind of luminous printing ink can absorb any visible light in the daytime and shine in the dark for more than 12 hours. You can find very excellent indication and decoration effects from this continuous process. With good heat-resistance, anti-friction property, the luminous printing ink are suitable for many materials such as paper, textile, wood, plastic, metal, ceramic, etc.

How to make luminous printing ink:

1. Choose neutral transparent resin(transparent printing ink).
2. Choose small average size luminous pigment such As model "C","D","E".
3. Adding 20%-40% luminous pigment into The transparent printing ink. The dosage is up to your requirement of brightness.
4. Do not grind the luminous pigment. If there is deposit, use containers with ceramic or glass inner and stir it with high speed.
5. Use high viscosity resin or anti-settling agent to avoid deposit.
6. Do not use heavy metal component as additives.
7. Choose different transparent abrasive ink oil according to the products being printed. For example, Using metal abrasive ink oil if the product is metal.

How to use luminous printing ink:

1. Viscosity of inks should be about 3000-5000 poise. During printing viscosity should be adjusted by diluting agent based on printing speed.
2. Apply a white base coat under the phosphorescent layer to improve afterglow.
3. Minimum film thickness of the LM layer should be 100 um. In order to achieve maximum glowing effects a film thickness of 130-150 um is required.
4. Ideal sieve number should be 80-100 mesh. Small mesh number would be better for the printing ink layer is also thicker.
5. One kilogram of dry LM can cover 3.5 square meter area.
6. It is important to keep the entire system dry!

You can get a more eye absorbing picture chromatically.

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