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How to determine the UV light oil and UV curing ink
After UV light oil and UV ink curing, formation of hard film, membrane layer falls off, if use the tip should look hard like fish scales, polished small pieces. If there is no cure thoroughly, use the blade stripping, can appear as small as paraffin.
UV light oil, and whether the UV ink curing test method:
1) the paper and ink by hand pressure, if surface curing, the underlying curing, surface layer will be worn out;
2) after the glazed printing paper for 24 hours, if cured completely, basically can't smell smell, if asked to light oil or ink smell, means have not completely cured composition;
3) with a pin to delimit polishing surface, and then with 200 times the magnifying glass observation, Nick for serrated, suggests that already cured;
4) with acetone or ethanol drops on the surface layer, if the film quickly dissolved, is not completely cure, if on the contrary, prove cure completely.