I copied my last year’s experiment with pomegranate rind on cotton yarn (bottom), and added bicarb to the liquor. The result was a light mustard-yellow. As the rind was a mixture of yellow and red, I decided to try again with red-only rind (the pomegranate was red all over, as the ones imported from the US tend to be), and added (I think…) ammonia to the liquor.
You couldn’t see through the jar when held up to the light, and the yarn (top) – c.12g – came out a grey-mauve after washing. Still not a very deep shade, but it demonstrates the variety that can be obtained from the fruit.
As the dye liquor was still dark, another skein of cotton went in, but this time came out a “dirty yellow”. None of the skeins had any mordant, so this plus some modifiers might be the subjects of the next experiments.