If one googles:
blue dawn fabric bleed removal
one gets quite a few topics to look at.
Vicki Welsh has a blog that many have found helpful
https://www.colorwaysbyvicki.com/sav...g-quilt.html#/
Good luck.
I have learned to soak my new fabrics in
hot water for at least two hours before washing them - gently - in cool to warm water.
I had a blue and red - that I had washed "quickly" - bleed when I sprayed sizing/starch on them.