Natural Dyes - Aluminum Sulfate
You can use Aluminum Sulfate (Aluminium sulfate) the same way as Alum.
This is an iron-free and potassium-free mordant.
Natural dyeing – mordanting any fibers: Aluminum sulfate was developed in some dyeing processes during the XIXth Century instead of potassium alum. It can be used as a mordant on any fiber and does not change the shades. For proteinic fibers, aluminum sulfate can provide an interesting alternative to alum and can be used without cream of tartar.
Also, combinations of aluminum and iron mordants or a final (very light) iron after-bath after an aluminum-mordanted color will widely increase the number of shades.
Aluminum sulfate (or aluminum sulfate) has other common uses: as a flocculating ingredient for the production of drinking water, in the manufacture of paper, as an acidification agent for soils, as an antibacterial agent…
Instruction sheet included
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