Genius drying problems!!!!

[ruppert22]

Looking for suggestions here on drying problems! We are using TOYO Aqualess inks and we can not seem to get a good cure with our Black ink on our backs! we are running on PVC substrate and need a solution or just some help in the right direction.

Our substrate manufacture also checks the Dyne level for our stocks for us and they are within spec.

 

[Meny]

drying issues

Hi
SO it is only your black that will not dry ?

This can be due to weak lamps , dirty lamp heads or old ink.
When was the ink you use made and how do you keep it ?

Meny

 

[ruppert22]

Meny:

Black is the only color we typically run on the back of our sheet stock! We normally go thru ink every few weeks so the ink i would suspect to be fairly new. as for the lamps i'm not sure if the heads are dirty. I have a question, would it benefit us to try to remove the glass on the bottom of the lamp housing. thanks for the reply also.

 

[Meny]

NO

glass is in place for a reason - do not remove
Check date on the ink tin - it must have a date and the date is was made should not be more then one year back
you can clean the lamps and try another batch of ink - could be the ink us bad.
Black is the hardest to dry in UV , but if all others dry well , i assume the dryer is working - basic logic
so try cleaning and changing ink , and if no cure - lets talk over the phone
+44-79-24232341 (please note i can be busy at times with others

 

[ruppert22]

thank you and i pass this on to my press Guy!