Wool fiber
is made from the hair of sheep. Other animal hair fibers, such as
mohair, angora, cashmere, and camel's hair, are in most respects dyed
the same as wool. As wool readily accepts dye colors, dyeing can occur
at almost any stage of the wool processing. You can also like: Wool Fiber: Production, Classification, Properties and Application
Fig: Wool dyeing
Mechanism of wool