Hi, Therese . . . yes, wool can be dyed with success. It's a natural fabric and I believe the Dylon brand (cold water) dyes will work well on it. There is a topic in our library called "Dyes and Colorants" that probably has a world of info about your question. Good luck.
It would be of interest to you to read Paula Burch's site on Dyeing different Fibers with the different types of Dye stuffs:
Click on all of her links - you will learn SO much about Dyeing and the different textiles!
http://www.prochemical.com/directions/M … onWool.htm
Also these Google sites:
http://www.google.com/search?hl=en&q=wo … gle+Search
Can you tell that I have many many links saved on Dyeing???
This is a very tiny sampling...
I surely don't wish to denigrate Rit, nor step on any toes of all of my friends here, and I do recognize that Rit is the most widely available dye in the States (except Kool-Aid!!) but it is a Union Dye, which is a class of dye attempting to cover all bases.
The problem is that in targeting all types of fibers, it has materials in there which you've paid for but are being lost in the process because they aren't accepted by the fiber you're using it on. Or don't give as full or as long-lasting effect as you would expect to result.
We order different materials for our work all of the time—fabrics, clays, accessories, etc..—it's no more difficult to order a dye for the type of fabric you're working with. You really will save money because you will use so much less of the product.
http://www.google.com/search?client=saf … 8&oe=UTF-8