Cold Foil Overprinting: CMYK Metallic Color Planning / 冷烫后套印 CMYK 怎么规划金属色
## Quick Answer Cold Foil Overprinting: CMYK Metallic Color Planning should be specified by process route, substrate, adhesive or UV varnish compatibility, artwork detail, and finished-package durability. For label and carton designers, the safest buying path is to test the foil on silver cold foil on printed labels or cartons, using the actual machine route for custom metallic colors and brand palettes. The main purchasing risk is ink density, trapping, and final color approval. Do not approve a cold foil roll by color alone; approve it by transfer completeness, edge clarity, gloss, adhesio…