Yes. See info on washing and colorfastness of Caron threads on its Website at
this URL: <http://www.caron-net.com/featurefiles/featapr.html>
Or go to the main page for Caron <http://www.caron-net.com/>, click on Feature
Column, and then on Previous Feature Stories-Archives. Scroll down to the link
for Thread Information Guide and click on it.
HTH,
Nan Evelyn