I just used Craft ink on a shirt that my daughter and I made for Daddy for fathers day!
1. Just make sure the craft ink pad is well inked, and hold stamp in place to allow the ink to absorb from the stamp.
2. After all stamped let dry an hour or so, even next day is fine.
3. Then heat set with Iron, I even used my embossing heat tool, and it worked fine.
4. Then let it dry for 2-3 days.
5. Soak it in a vinegar solution 1 part vinegar to 2 parts water, for 1/2 and hour.
6. And then finally wash/dry on low heat.
Mine didnt run at all, and it looks great. We had fun making it, and she said it made daddy "SOO Happy!!" (shes 2 1/2)
I liked using the craft inks, cuz I didnt want my stamps to get all dirty with acrylic paints. I am just so protective of my precious stamps!!
Well good luck & let me know if you have any questions.
~Kami