Following on from the previous post about black bean dye –
The next day, bicarbonate of soda was added to the Black Turtle Bean solar dye. Colour changed to green and this colour transferred to the un-mordanted silk and cotton scraps.
This test needs to be redone; the bicarb was added to the original dye which was probably a bit tired – the beans were ‘going off’ at the time.
I also added to the solar dye pot some rolled-up paper, but the green disappeared into a brown-green when applied to paper. Something in the paper which is photocopy paper reacting with this dye. Where the pools of dye were deeper the green colour is just apparent. This paper is stuck onto the test page and covered the swatches in the above image, hence the change of page direction!