Originally Posted by
ube quilting
Never use sharpies on fabric, They will bleed, eventually. Even humid weather will make happen.
Try using the Pigma brand pens. They are made for using on fabric and are archival quality ink. No fading, bleeding or deterioration of fabric from acidic ink. They come in several colors and point sizes and work great. Sorry for your trouble.
peace
I put together a quilt top for a co-worker who had each party goer sign a charm square that was NOT pre-washed. Do I need to heat set the squares before washing the quilt for the first time? Or is the ink already permanent?