Alum
Item
Identifier
2025.059
Title
Alum
Alternative Title
Potassium Aluminum Sulfate
Type
Material
See all items with this value
Description
The mordant most frequently used by natural dyers for animal and plant fibers and fabrics. It improves light and washfastness of all natural dyes and keeps colours clear. It is inexpensive and safe to use (but should not be ingested). This form of alum is refined from bauxite, the raw state of aluminum ore, and is free from the impurities some other alums can contain (such as iron).
Subject
dye materials; dye; dyes; dyeing; mordant; mordants
Source
Purchased from Maiwa
Copyright statement
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