Do not understand you wash the dress how to be mixed neighbour together, but can teach you the law, white dress by coloring after wash a method.
If be small area by colored word, wash float color with clear water first, touching with old tooth brush next blanch water mixed liquor, brush gently by colored place OK.
If be whole dress by colored word, need will blanch water dilute with water, scale probably 1: 10 the left and right sides, inspect a condition and decide, use washing machine full about 30 minutes, bleach the color that come back so evener, opposite to the injury of the dress a lot of smaller also. Blanching water itself is chemical preparation, what become pair of human body to be not built is adverse, use even finally so immerse 20 minutes again after clear water is abluent, OK insolation.
