Recent content by turbotom1052

Can you turn the coater form against its clutch?

Running through on impression will remove some excess anti setoff powder but not all of it. If it's in the budget to make a second pass to clean up the sheet, I would suggest that instead you use the additional pass to varnish offline and rack the job in smaller lifts using less powder. Either...

Any inker applied matte varnish should not only give you a matte appearance on images, but also offer a velvety like texture to the surface that it's covering, as long as you dont apply too much spray powder. If you run too much powder the velvety texture will dry to a sandpaper like texture...

The buildup of ink on the outside of the sheet is a normal occurrence. As much as we would like to think that the non image area of a plate is just that (a non image area) there is often minute traces of ink in these areas that over time ( a thousand or three impressions) will build up on the...

Im about to say something contrary to the very Demming principals that all forms of manufacturing would love to adhere to. The notion that we are NOT to accept any uncontrollable variables in manufacturing processes is a bunch of bullpoopie. As much as the beancounters would love to be able to...

Have you or your pressman noticed a trend as to the inaccuracy of the CIP data? Do they have to consistently add or take away ink. Is it the same addition or subtraction on both coated and uncoated stocks? Are the inaccuracies more prominent in the morning after the initial daily inkup, or...

Do you do regular calcium rinses of your rollers?

Have you tried using a more weakly pigmented black ink? By running a black thats weak in pigment you could effectively run a thicker ink film. This thicker ink film should aid in keeping hickeys in check. Do yourself a test.... When you have a problematic form on the press just throw about...

The problem with trying to assign a densitometer number variation to a 4 color printed piece is that at times a delta of up to 10 densitometer points may have a negligible affect on the bulk of the printed piece, but you may encounter images where variations of less that 5 densitometer points...

Are you running weakly pigmented inks that require you to run a thick ink film? Thick ink films will cause an unstable emulsion that will result in "misting". This misting will make a mess in short order and cause buildup on the bars you mention. Even with strong inks it could get to the...

My recommendation would be to purchase blankets unmounted. Im not very fond of the blankets that come pre mounted on extruded aluminum blanket bars. Ive found that the extruded bars do not distribute the tension on blanket evenly around the cylinder at the point where the blanket just enters...

"Chris..."the correct height" measurement can be arrived at in multiple ways. Some may say that if you just add the blanket thickness thats marked on the back of the blanket, along with the thickness of all the paper packing, and just subtract that from the blanket cylinder undercut you will...

This is what you get when you have incompetent press crews.

Chris... I ran that very press a number of years ago and I can tell you that problem did NOT exist. You are saying that the press is packed to specs on all units with new blankets, but what you're not saying is if the plate and blanket measures up to the correct height with a packing gauge???

The need for the repair can be attributed as far as we were able to tell ,to some sort of foreign metallic object within the paper pile.