If the hair is very soiled with either scalp oil or hair products, it may affect the color results especially when lightening the hair. It's best to wash the hair at least 12-24 hours beforehand.
yes
Freshly washed.
Dye takes better to unwashed hair. Of course having a ton of dirt and grease in your hair is not good either. If you've washed your hair within 3 days, it's fine, color away. If it's been longer I would wash it and wait until the next day to dye it.
no,crayons are the toxic materials which are obtained artificially.these are greasy materials where hair cannot be dyed with it.
it is better to perm the hair then dye because the chemicals in the relaxer will strip the hair of color. This increases the risk of your hair color being lighter than you desired.
not keeping it looking clean. you can try a rinse thow. they last for about a month, organic, and better than dying your hair.
Before i graduated from cosmetology school i have learned your Hair should neither be dirty OR clean when you dye it. But you should not have hairspray in your hair either. So in this case just dye your hair while it is clean, but for future reference make sure that your hair is not completely clean or too dirty with products.
It depends do you want a different hair color or a perm
Dye it a color when it is clean. However, read the label on your hair dye thoroughly. Some dyes require a wash after you dye to wash the dye out. In this case that means you will wash your hair twice in one day. Make sure you use a leave in conditioner in addition to your conditioner so that your hair gets some moisture back. Bleaching is ok when your hair is dirty. However, I wouldn't recommend letting more then 1 day go by unwashed before bleaching or you may risk uneven color.
There are many ways of dying hair. Regular hair dye should only be used on dry, clean, unwashed hair to ensure complete coverage and correct color.
a hair dryer does not dye hair
Yes You would but if you dye your hair black with side bangs it will not look that so attractive. if you dye your hair black with short side bangs it will be much better.