Cold Foil for Metallic Gradients and Patterns / 冷烫金属渐变和纹理图案怎么设计
## Quick Answer Cold Foil for Metallic Gradients and Patterns should be specified by process route, substrate, adhesive or UV varnish compatibility, artwork detail, and finished-package durability. For packaging designers, the safest buying path is to test the foil on silver foil, overprint inks, and coated substrates, using the actual machine route for decorative patterns, gradients, and luxury backgrounds. The main purchasing risk is prepress resolution, trapping, and brand color proofing. Do not approve a cold foil roll by color alone; approve it by transfer completeness, edge clarity, gl…