Dyeing tutorial?

[crimson-vipera.livejournal.com]

Hello everyone!

I have a burning need of a rainbow coloured embroidery floss.

I was thinking about something like this:

( Rainbow floss... )

Problem is, this particular floss is already sold out. So I've decided to make one myself. I've went and bought white floss and dyes. The problem is, I've never dyed anything in my life. I've searched for a tutorial to help, but couldn't find anything helpfull among the thousands of results.

Does anyone among You beautiful people know how to get that effect or maybe has a link to a tutorial? I'd be very, VERY grateful.

Sincerely,
CV