The correct answer is:
If this is microwavable products for human
consumption and you want a defensible position for your company
you need to perform Migration, Headspace, and Sensory Perception
Testing at Rutgers or Integrated Paper Testing in Appleton, Wisc.
A. Run paper through press without ink or damps on
Cut a 7”X7” square out and wrap in aluminum foil, tap closed
date, sign, and mark through press
B. Do the same with just the damps on and mark damps only
C. Do the same with just the ink on and mark ink only
D. Do the same with press printing and mark printed
I would be careful with your blanket and metering roller wash. I would
insure you have filters on your compressed air to remove any oil.
I would insure a clean environment. I would insure compliance
with Toxics in Packaging (metals).
Soy ink means nothing, if you stink up a product or migrate regulated
toxins into a product. You probably do not have ample insurance for
the consequences. Example: put a printed paper board in your
microwave and turn on the microwave for 1 minute, open the
door and see if you smell anything. The anything could result in
a recall.
Integrated paper testing
http://ipstesting.com
Rutgers
http://foodsci.rutgers.edu/aboutUs/mission.html
Anybody involved with food, cosmetic, medical, pharmaceutical packaging would know outside verification is required.