Safflower is an ancient prickly flowering plant that contains a water soluble yellow dye and an alkaline soluble red dye.
The dye was originally used to dye the cotton tape used for legal documents – hence the expression “red tape.”
Safflower petals make an excellent dye for silk. Linen and cotton will also take the dye well.
Safflower produces both red and yellow dyes which are obtained from the petals.
Safflower dye gives beautiful shades of rose, reds and orange on silk and cotton.