White Powder accumulating under new wool rugs
I have been asking around and the only sensible answer I have received came from a gentleman who wrote me an email about this subject. He is fairly certain that the white powder under a new wool rug could be Guar Flour (gum). This is a non-toxic, food-grade additive, that is most often used in rug dyes to help in binding and adhesion. I have known that it is used as a binding agent inside of dyes, this is the first I have heard of an external application. According to this theory, it would seem that the Guar Flour is being used externally, to help the dye further adhere to the wool fibers in a rug (primarily in the Far-East). Is this really the problem? Although this is the first explaination that makes sense to me, I will further research it to find if this is the true cause for this problem. I use the word problem loosely here, as it is a source of concern for many people who have contacted me. If this is truly part of the manufacturing process in the Far-East, why don’t they remove the excess powder before packaging and shipping the area rugs?
By the way, I have yet to see this problem occur in any of the rugs we suggest on our web site.
If anyone knows the certain cause for this concern, please leave a comment to this blog, or email me at: