Aluminum Lactate

Aluminum Lactate is a fairly new mordant for dyeing cellulose fibers.  It is to be  used in the same way and at the same proportions as aluminum acetate, as a replacement for aluminum acetate.  It is made using a by-product of the sugar industry and maize and starches.  It is produced from lactic acid by fermenting renewable by-products.

It is recommended to use a first tannin bath on your cellulose fibers, before mordanting with this product, for best results.  Low color tannin sources are oak gallnut, sumac, tara, and there are many other tannin sources that will introduce a bit of their own color to the fiber, like acacia, myrobalan, pomegranate and chestnut.

Aluminum Lactate dissolves better than Aluminum Acetate and it is completely soluble in room temperature water. 

Use 7-10 grams of aluminum lactate per 100 grams of scoured cellulose fabric or yarn.  Soak the fiber in warm water for at least 2 hours, so that the fibers are completely wetted and saturated before introducing the mordant.  You can then put the wetted fibers in a dedicated dye pot and add hot tap water and aluminum lactate.  There is no need for extra heat, as the heat from the water is sufficient.  Move the fiber around so that all portions of it are available to the mordant in the water.  Leave overnight, or a day.  Rinse fibers to remove any unattached mordant before dyeing.