Eight, residual odor
main reason:
1, UV light oil curing is not complete.
2. Insufficient UV light or lamp aging.
3, UV varnish anti-interference ability is poor.
4. UV Varnish Add too much non-reactive diluent.
Solution: UV varnish must be completely cured, and ventilation must be strengthened. If necessary, replace the UV varnish type.
Source: 21st Century Fine Chemicals Network