Aluminium Potassium Sulphate

Aluminium Potassium Sulphate

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Aluminium potassium sulphate (Alum) is a mordant and it can be used when dyeing all textile, cotton, wool, silk etc.

Mordants are helpful to ensure that the colour from natural plant dyes fix to the fibre and produce stronger colours. It also help improve the light and wash fastness of the dyes. Using different mordants with the same fibre, can also result in different colour shades from the same dye bath.

Dissolve in hot water, then add to the mordant bath ready for the mordanting step prior to dyeing with the natural dyes. It is recommended to use between 10-15% Weight of Fibre/Fabric (WOF).