uv over wet ink

[rbailleu]

does anybody have any experience with uv coating over wet/ fresh from the press ink?

does it cause any image issues? gas ghosting.

also has anyone ever uv coated a polypropelene sheet. like a polyart, yupo, teslin.

 

[Mike LaForest]

We print overall UV coating on both Yupo and Polyart without major problems . You do have to monitor the heat as it can cause distortion on the 2nd side. Coating does wet out better on Yupo than Polyart but both run at normal press speeds and cure well.

 

[rbailleu]

do you use uv inks as well or conventional ink?

 

[Mike LaForest]

We are using Hybrid mostly but will use conventional in the same way. The cost of going back and forth with washups is much higher than just leaving the hybrid in. As far as gas ghosting we have not had much problems with that for some time .