Most of the time it does not, UNLESS you leave the dye into long and it will possibly fry your hair. If you do dye your hair more then one, make sure the hair is healthy and strong. If you dye your hair alot in a short time period then you can have hair loss. I really hope this helps.
No. Fabric dye is designed specifically for fabric. It may contain ingredients that can damage your hair or cause scalding or kill your roots (causing hair loss). Use proper hair dye for dying your hair.
If you do dye your hair a lot in a short period of time you can cause damage or maybe even a little hair loss. but don't worry just be careful and smart about what you do. Treat it good and make sure it is healthy.