Welcome to the latest dyeing experiment by ChemKnits! Black food colorings are composed of many different dye molecules, a mixture of blue, red and yellow. These colors can separate (or “break”) when you apply them to fiber since different color molecules absorb to wool at different rates. In this dyeing experiment, we wanted to explore how the different brands of black food coloring, with its different compositions, would break differently.
(0:00) Introduction and food coloring dye components
(1:32) Mixing the dyes
(3:16) Comparing the dye mixes
(4:10) Adding the black dyes to the wool
(5:56) After 5 minutes of simmering
(9:36) Washing the fiber dyed with McCormick’s Black food coloring
(11:11) Washing the fiber dyed with Wilton’s Black Food Coloring
(12:00) Comparing the dried fiber and conclusions
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