Group A Dyeing Data

This week we experimented with dying processes. My group, group A, dyed our wool using dried marigolds. Additionally, as a class we dyed wool using dried and processed natural indigo pigment. General data about the dyes and wool can be found below.

DyeMordantDye MassWater WeightWool MassThread SizeWater pH
IndigoAlum20g5 gal100g (50g white, 50g grey)
MarigoldsAlum50g1 gal100 g (50g white, 50g grey)1.88mm7.2

Additionally, my group tracked the temperature of the water and dye throughout the dying process which took 1 hour and 10 minutes in total. The table below demonstrates the difficulty we had maintaining the ideal temperature of ~37.0 degrees Celsius. Nonetheless, we still were able to produce a deeply yellow thread.

Time0:00 (dye bag added to water and removed from fire)10:00 (wool added to dye solution and placed back on fire)12:00 (removed from fire)17:45 (placed back on fire)20:00 (removed from fire)37:0048:00 (placed back on fire)50:00 (removed from fire)1:10 (wool removed from dye solution)
Temp (C)34.924.644.731.549.444.028.051.533.3
Temperature throughout the dying process
Yellow wool soaking in a yellow dye solution.

We also collected data about how the weight of the raw dye ingredients of water and the dried marigolds changed in weight over the course of dyeing.

Water went from ~3.79kg 2.07kg.

The dye bag went from 61g 214g.

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