micron pigma pens are permenent- archival quality, acid free-- do not fade, or bleed-no fuzzy edges.
as for your label---
did you let it cure? then heat set it? then rinse it in cool water?
was the fabric prepared for dyeing?
do you have good ink (sorry it takes the expensive stuff) in your printer?there is permenent inks- and there are water soluble inks-
the inexpensive, re-fillable cartridges the ink will wash out every time-