1. Remember that UV inks cannot be used directly with oily inks to avoid gelation.
2. UV ink storage temperature 0-25 degrees Celsius and avoid sunlight.
3. UV varnish 3021 cannot add more than 5% during UV printing.
4. Auxiliaries must add UV-specific materials, the amount can not exceed 3% when adding anti-wear additives, too much affect the ink transfer ink, can not be added in the gold foil and UV light oil, the other can not be used for a long time (a day) machine.
5. When using UV ink, use hand cream. When you have UV ink on your hands, please clean it as soon as possible. You can't use solvent to clean UV ink, so as not to absorb UV ink.
6. Ink balance control.
UV inks have a narrower balance of ink and water than general oil inks. Emulsified plates are easily emulsified in printing. Generally, inks with high viscosity have relatively low ink-to-ink balance, which is relatively easy to control. The general area is small to use sticky high ink and not easy to paste version. The amount of water is as small as possible. The new printed substrate must be tested for adhesion.
7. UV ink curing method.
Whether the surface feels sticky (surface hardening confirmation). Rubbing paper or nail on the printed surface? Confirm the result of the friction (confirmation of internal hardening). Do tape-peel test? Check if there is peeling inside the ink (confirmation of internal hardening)
8. Solution to cure problems.
Check UV equipment Reflective inspection Checks ink thickness reduction Print speed Add photosensitizer Replace ink
2. UV ink storage temperature 0-25 degrees Celsius and avoid sunlight.
3. UV varnish 3021 cannot add more than 5% during UV printing.
4. Auxiliaries must add UV-specific materials, the amount can not exceed 3% when adding anti-wear additives, too much affect the ink transfer ink, can not be added in the gold foil and UV light oil, the other can not be used for a long time (a day) machine.
5. When using UV ink, use hand cream. When you have UV ink on your hands, please clean it as soon as possible. You can't use solvent to clean UV ink, so as not to absorb UV ink.
6. Ink balance control.
UV inks have a narrower balance of ink and water than general oil inks. Emulsified plates are easily emulsified in printing. Generally, inks with high viscosity have relatively low ink-to-ink balance, which is relatively easy to control. The general area is small to use sticky high ink and not easy to paste version. The amount of water is as small as possible. The new printed substrate must be tested for adhesion.
7. UV ink curing method.
Whether the surface feels sticky (surface hardening confirmation). Rubbing paper or nail on the printed surface? Confirm the result of the friction (confirmation of internal hardening). Do tape-peel test? Check if there is peeling inside the ink (confirmation of internal hardening)
8. Solution to cure problems.
Check UV equipment Reflective inspection Checks ink thickness reduction Print speed Add photosensitizer Replace ink
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