Hello Everyone,
I frequent the forums looking for solutions when we have problems, but though anything I can find on here, plus anything we try through suppliers, we can't seem to solve this problem.
No matter what we do, when we have a 2 sided job we cannot back it up untill a couple hours later. If we try and back it up any sooner the ink will literally pick up off the sheet and build up on the cylinders. The sheet remains in tact.. but jsut the ink picks off.
We are running our full color work on a 14x20 gto, agfa azura plates.
Things weve tried:
lowering from 175 lpi to 150
changing the chiller temperature from 55 - 60
Every Line of hossman ink, flint ink, van son ink. Including heavy dryers and or low tack ink.
Different fountain solutions, one step from hossman, 2 step from unigraph, alcohol sub, alcohol.
Cleaning the cylinders with heavy duty cleaners.
Coating the cylinders with spray silicone and other overnight coatings.
I think that covers about everything. I feel like we've tried about everything we can try. Does anyone have any suggestions for us? Any help would really be appreciated.
The only other thing we've noticed that might be worth mentioning is that our 2 color gto perfector is almost identical to it except that the cylinders have a jacket on them that is a very dull finish as opposed to the 4 color that has no jacket and is a shiny chrome finish.
And an added note is that our ph is around 4.5 and our conductivity is around 1000.
Really really appreciate any help anyone can give us. We have put weeks of testing towards trying to solve this problem and cant make any headway.
Cameron
I frequent the forums looking for solutions when we have problems, but though anything I can find on here, plus anything we try through suppliers, we can't seem to solve this problem.
No matter what we do, when we have a 2 sided job we cannot back it up untill a couple hours later. If we try and back it up any sooner the ink will literally pick up off the sheet and build up on the cylinders. The sheet remains in tact.. but jsut the ink picks off.
We are running our full color work on a 14x20 gto, agfa azura plates.
Things weve tried:
lowering from 175 lpi to 150
changing the chiller temperature from 55 - 60
Every Line of hossman ink, flint ink, van son ink. Including heavy dryers and or low tack ink.
Different fountain solutions, one step from hossman, 2 step from unigraph, alcohol sub, alcohol.
Cleaning the cylinders with heavy duty cleaners.
Coating the cylinders with spray silicone and other overnight coatings.
I think that covers about everything. I feel like we've tried about everything we can try. Does anyone have any suggestions for us? Any help would really be appreciated.
The only other thing we've noticed that might be worth mentioning is that our 2 color gto perfector is almost identical to it except that the cylinders have a jacket on them that is a very dull finish as opposed to the 4 color that has no jacket and is a shiny chrome finish.
And an added note is that our ph is around 4.5 and our conductivity is around 1000.
Really really appreciate any help anyone can give us. We have put weeks of testing towards trying to solve this problem and cant make any headway.
Cameron