Cold Foil Core Size and Roll Length Planning / 冷烫膜卷芯和米数怎么选
## Quick Answer Cold Foil Core Size and Roll Length Planning should be specified by process route, substrate, adhesive or UV varnish compatibility, artwork detail, and finished-package durability. For production planners, the safest buying path is to test the foil on cold foil rolls and unwind systems, using the actual machine route for continuous label and sheet-fed finishing work. The main purchasing risk is core size, roll length, splice frequency, and storage. Do not approve a cold foil roll by color alone; approve it by transfer completeness, edge clarity, gloss, adhesion, rub resistanc…