Description
For photochromic prints that change their color by sunlight, to print on coated and absorbent paper and Vinyl/PVC. The colors are photochromic, i.e. when exposed to sunlight, dark radiation, or UV radiation from other similar sources, they change from transparent to colored. The effect is reversible.
Colors
Properties
- Glossy print,
- All inks are free of heavy metals and meet the EN 71-3 Toy Safety standard.
- These inks should be printed on a light colored surface, preferably White, to show the strongest color change,
- The 342 V1 series includes the same photochromic colors in a matte version.
How can you use it?
Printing and drying
- 77-120 mesh is recommended.
- UV drying.
- The 342 series photochromic inks require 200-300 mJ energy for curing.
- The stencil must be water and solvent resistant.
Dilution
Ready to use. No need to add thinner.
5% Adhesion Promoter 063 can be added to increase adhesion on plastic surfaces.
Stability, storage and handling
If photochromic prints are exposed to light / UV longer time, they less return to colorless. If prints are stored away from UV rays, they will retain their ability to change color for years.
The special pigments of the inks recommended for sun-changing photochromic prints are incompatible with many chemicals, so any product added to the inks can attack the pigments.
Note
At plastic surfaces, recommended to carry out a test before starting mass production. Plastics may contain plasticizers or mold release residues that can impair the adhesion of inks.
There are several variables with these products. For example, water-based / UV-curable inks. Therefore, please contact us and we will provide you the exact product for your application.
Do you have a question, need more informations? We can help you!
... or call our Hotline on +36 30 939 9520
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