Dried shavings from Maclura pomifera, a tree once widely planted in the US and eastern Canada for shetlerbelts. The wood is still used to make archery bows.
Use on protein or cellulose fibres. Pre-mordanting recommended. Strong and fast golden to lemon yellows are produced. Use at 20-50% WOF for medium shades.
TO USE: place shavings in a stocking and soak overnight (or longer) in cold water. Bring to a simmer for 1 hour, cool and remove stocking. Enter premordanted fibre and simmer for 1 hour. Combines well with other dyes such as Logwood. Shavings can be dried and reused.
Light and washfastness: excellent.
Shavings from Chlorophora tinctoria often called Old Fustic.
Use on protein or cellulose fibres. Requires a premordant. A classic dye that gives bright yellows through to gold or green, depending on the mordant. Use at 30-50% WOF for medium to strong shades.
TO USE: soak in water overnight to several days. Simmer 1 hour in soaking liquid. Cool, strain then simmer premordanted fibre for 30-60 minutes. Temperatures of 155-160°F will give the best yellows.
Light and washfastness: good to excellent with a mordant.