Thanks for your responses! I did some digging, and I found a company that makes something called Mrs. Stewarts Blueing. I called them, and she said that she had not heard of it being used as a printing ink, but I could try it. It would just need to be watered down a lot.
So, I'm going to try that. As far as getting the patterns into my computer program to create the positives, I think I'm going to have to find someone with a large-format scanner. My customer does all her own drawings, and I can just take them and scan it into my vector-based program.
Hopefully this will work. Thanks again for your help and suggestions. If I'm able to make this work, I'll let you know. Who knows, maybe I'll become the leading pattern printer on the east coast! :lol:
Michele