Alternative Rust Dyeing

I also gave Purple Missus' Alternative Rust Dyeing another chance. This time, I got some Iron Sulphate (mordant) from a natural Dye Supplier (not the fertilizer that failed so miserably last year).

Initial results on cotton looked encouraging (I'm glad I took pictures because all this color, pattern, and earthly textures went down the drain) :














This one (above) washed out to this (below) :-(







This (above) washed out to this (below) :


Anyone have suggestions on how to make the color stay?
Would this work better on some really nice paper that wouldn't get washed so thoroughly in the washing machine?

Like I said, I'm glad I have the pictures.