ARTJET UV flatbed / Coated paper / pre-printed sheet (spot epoxy/gloss varnish overlay)

Coated paper / pre-printed sheet (spot epoxy/gloss varnish overlay) on ARTJET UV flatbed

guide
Surface prep
Use coated paper (varnish reacts poorly with ink on uncoated); manually align borders/registration if varnish-only on externally printed sheets
Layer order
CMYK print → spot Varnish only on selected areas (epoxy look)
White layers
0
CMYK layers
pre-printed or same-job color
Varnish
Spot clear varnish only on selected areas
Print mode
Same UV job for print+varnish preferred; or manual border align for varnish-only post-process
Durability
Gold/silver foil via current UV varnish has unclean edges; needs specialized varnish+film+temperature
Notes
Epoxy-style gloss from transparent varnish on titles/areas. Coated paper required for clean result.
Source: ARTJET
Summarized from the linked source. Test on scrap before production runs.