Question on concentration of pigment in textile fibers

NLO

Hi!

I am looking for some help with understanding what are the "usual" values for concentration of pigments in textile fibers. Would appreciate any help, links, comments..

I did some search on the Internet. The resource that I was able to find is this:
http://books.google.com/books?id=ySm...gjzTYEJeLAAAZo

It says:
... reflection curves obtained for a yarn made with 0.125%, 0.375% and 1.25% of a 25% concentrate of Yellow 17 in polypropylene...

Does this mean that the concentration of pigment in yarn is 0.125%, 0.375% and 1.25%?

Thank you!