Printech, August, 2000
Re: blanket wash
Date:Thu, 24 Aug 2000 21:40:55 -0500
My experience has been fountain solution does not filter well. I'll follow
by saying that there are many water quality issues that could lead to
problems on the press that filters may not handle: pH and conductivity just
to name a couple. If you want to learn more, just ask a paper vendor and
they will give you all the problems inks cause and then ask the ink vendor
and they will tell you all the problems paper causes .
As for dumping used fountain solution, many times it is ok but I have
learned one thing the hard way. Be sure to ask what is done to control
algae buildup in the fountain. I had a case where a commercial algaecide
with hexavalent chromium was used by a printer. Needless to say the city
frowns on such discharges. You might also find algaecides with copper
sulfate which can be problematic although to a lesser extent.
Be sure to check with city, state and federal regs in your area and I hope