quiltlady1941

I bought 4, 3yard pieces of batik that was a very dark blue and green, at Joann's today and came home and put it in the washer with 3 shout color catchers, the first time I took the fabric out the catchers were really a dark blue, so I washed it again the second time the catchers were lighter,

Question, do I keep washing the fabric until the catcher come out white or like when I put them in the wash.. another question, after the fabric is washed with a catch will drying it in a hot dryer set the color?

Thanks