Cold Foil UV Energy: Under-Cure vs Over-Cure / 冷烫 UV 能量不足或过量怎么判断
## Quick Answer Cold Foil UV Energy: Under-Cure vs Over-Cure should be specified by process route, substrate, adhesive or UV varnish compatibility, artwork detail, and finished-package durability. For process engineers, the safest buying path is to test the foil on UV and LED curing systems, using the actual machine route for cold foil transfer and digital embellishment. The main purchasing risk is tack timing, cure depth, adhesion, and gloss. Do not approve a cold foil roll by color alone; approve it by transfer completeness, edge clarity, gloss, adhesion, rub resistance, and repeatability…