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UV printing has come a long way. Yes, In some cases the ink will cause an allergic reaction on soft skin. You need to be a clean pressman Slobs will get the ink everywhere and it will not dry. The running window is smaller and I can only stress there are no shortcuts. With correct rollers you...

Goatneck, where are you located? If in the NY/NJ/PA area, I can stop in at no charge. Email me at [email protected] I am the areas pressroom specialist and deal with problems like this all the time. Take a picture of the printed seet close up and email it to me.

If the packing behind the blanket is not at factory specifications, the impression pressure setting will not be accurate. If the blanket is over-packed, the impression pressure must be adjusted accordingly. Heidelberg like most manufacturers is looking for a .006"-.008" squeeze between plate and...

Alois is correct. The black and magenta screen angles were both 45 degrees. Someone had changed the parameters in prepress and for a few weeks had been making plates this way.

I was called to a customer to look into print quality issues on a 5/C 25" press running CTP plates. I was shown a 4/C job that had a brown solid created by 4/C tints. The sheet had streaks and "hot" areas in the magenta and overall looked like crap. Sequence was KCMY. I was shown a 2/C pull of...

Read my reply to "Print length" on a different topic.

There are a few different ways to check for print length problems. Alois and Erik are both correct. Remove the blanket and check the plate to blanket cylinder bearer pressures by tapping a thin film of ink on the plate cylinder bearer and put the unit on impression. Thin ink film should transfer...

How warm is warm red?