Hot Foil over Spot UV & double-sided Spot UV

[ReflexBlueHorror]

Happy new year fellow PrintPlanetarians. I'm coming at this from the graphic design side, unable to find literature on these matters... Is it possible (or undesirable) to hot foil over Spot UV? Has it been done before? Will it be done again? Is Spot UV ever done double-sided?

 

[Magnus59]

We regularly do double sided spot UV
Foil is notoriously temperamental when other treatments are applied underneath
I would lean towards foiling first then UV over the foil where possible

 

[ReflexBlueHorror]

I imagine that if the foil and UV are in register, that order would be ideal for uncoated stocks so to avoid multiple coatings.

 

[ReflexBlueHorror]

I've seen "silk foil" by Prudente

but the setup is quite different. I'm thinking more of how mirror-finish foil can be achieved on lightly textured stocks. I've seen glazed embossing but not heard of it being done simultaneously with foil.

 

[Foil dude]

If you want foils to stick onto UV coatings, or any coatings for that matter you will need the Dyne count to be over 36. You will also want to try several different foil formulations because the chemistry in the sizing (adhesive) varies from formula to formula. Finding a foil that likes your UV coating is key. You can call me to discuss. Brian Bowland, Great Western Foils, 805-375-4336.