What about printing plastic bags and printing ink back?
The solution is to find water or solvent based inks that will not absorb moisture and have excellent water resistance.
Ink sticky back is because the performance defects caused by the ink binder resin, is simply due to the waterproof ink drying is not enough, causing the water to dissolve the sticky phenomenon, whether it is water-based or solvent based inks, when after drying, if have a good waterproof, it will not produce a sticky back the phenomenon of.
Light oil plus hardener in proportion to good, and then silk screen to the product
