Stepping forward in time - mid 2nd century shoes

[Martin Moser]

Hi Mark,

thanks for your feedback on how the color is behaving over time!

The "heart" designs on the Commacio bag have started to do the same, being they have become a blackish - brown.

Interesting, since with my bag, which is exactly the same, the color is a very dark grey, almost black, but no brown in it.

I do wonder though if this "browning" is part of the oxidization process of the iron in the dye, much like a rust?

That might well be possible, at least it would make sense to my far-from-any-chemistry-education-brain ;-) )

What other dyes have you considered using other than iron or madder. Do you think Woad would work for a blue on leather?

Actually now that we have received back a bunch of goat skins (alum tanned) from the tanner this is what I'm thinking about trying next :-) ) . Since alum tanned leather seems to be a good choice for dyeing I would also like to try greens and yellows some day....