Cold Foil Troubleshooting Flow for Press Operators / 机长冷烫故障排查流程
## Quick Answer Cold Foil Troubleshooting Flow for Press Operators should be specified by process route, substrate, adhesive or UV varnish compatibility, artwork detail, and finished-package durability. For press operators, the safest buying path is to test the foil on actual production substrate and cold foil line, using the actual machine route for any cold foil production run. The main purchasing risk is root-cause sequence and controlled adjustment. Do not approve a cold foil roll by color alone; approve it by transfer completeness, edge clarity, gloss, adhesion, rub resistance, and repe…