How to Prevent Foil Cracking After Folding and Creasing
Foil can look good on a flat sheet but fail after the box is folded or assembled. This is why paper box foil should always be checked after the full finishing process. ## Why It Happens If the foil area is too close to a fold line or corner, the surface may break during box forming. Weak adhesion on printed or laminated paper can also become visible only after folding. Some special-effect foils are less flexible than general paper foils, so the foil grade should match the package structure. ## How to Reduce Risk Keep important foil details away from fold lines when possible. If the desig…