Organza Pink

Prevent colour/dye to run?

I have brought tutu romper recently. The tutu is black in colour while the romper is pink. I fear that the black colour on the organza fabric tutu made run and stain onto the pink cotton romper. May I know is there an effective method/way to prevent this possible colour run incident to happen?

Wash in mild detergent and COLD water. To be extra safe, you could soak the garment in COLD water prior to washing.

Pink Organza Rosettes & My First Tag