prewash fabric=with detergent- no fabric softener- you can pre-treat with bubble jet set- or retayne....or prepare for dyeing with soda ash.
after printing-set aside to *cure* so the ink can absorb into the fibers-i usually give it 24 hours
then heat set= rinse in cold water to make sure it is going to last-
use good quality inks *not the refillable's*