Being that you are using your own yardage,
Has the fabric been washed?
... washing would get the sizing and other chemicals off, and prepare the fabric to receive the ink.
After washing, as the fabric been re-treated (starched, best press, spray sizing, dryer sheets, etc.)?
... all of these could be preventing the ink to stay on the fabric. Back to washing, as above.
As GmaSandee already questioned, be sure to heat set it after printing.