I have black hair at the minite I woulod like to dye it to bloned then to dye half of the blond bright red and the other half of it purple how would I go about getting the black out of my hair to do this would colour zap do this??

Ahh I dyed my hair from black to BRIGHT red and it takes so harsh hair care.

You have to bleach it first and then use dyes of your choice but as you want such bright colours it will fade really quickly... for instant top ups use food colouring it really helps top up the colour. Well for me anyway.