Any question answered...

Blue jeans are out, everyone knows it, so I'm dying a pair black.
The instructions on the pack do not say whether or not I should machine wash them afterwards or hand wash, and if I machine wash should I wash with normal washing machine powder etc.
Anyone have experience with fabric dye?

I want to go from this:

http://www.denimblog.com/wp-content/uploads/2009/07/80s-denim1.jpg

To this:

http://stuffflypeoplelike.com/wp-content/uploads/2012/01/http-http://www.upscalehype.com201112a-close-up-look-at-kanye-wests-nike-air-yeezy-2-blackpink-sneakers-14.jpg

If you're starting with pale jeans, you'll have to dye three or four times. Just buy some second hand black jeans.