There is way. Clean, non-digital and well supported. Silkscreen water-based emulsions use other agent. Ecological, non-cancerogenous, more sensitive to light yellow powder. You mix it into emulsion just before you use it. I'm sure you'll get some information at your autotype dealer (http://www.macdermidautotype.com/ i think this is their site).
Share resources, discoveries and results

Cheers,
Luke