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Table 4 CIE-L*a*b* values and fastness properties of tin-mordanted dyed wool

From: Application of Terminalia chebula natural dye on wool fiber—evaluation of color and fastness properties

  Wash fastness Rub fastness Light fastness
Dye % Medium (pH) L* a* b* c* h° K/S c.c. Dry Wet
15 Neutral 54.8 4.9 20.6 21.2 76.4 7.81 4 4/5 4 5
  Acidic 53.9 5.6 20.3 21.1 74.5 8.20 3/4 4/5 4 5
  Alkaline 46.2 4.2 19.2 19.7 77.5 12.98 4 4/5 4 4/5
8 Neutral 62.4 4.0 21.5 21.8 79.3 4.73 4 4/5 4 5
  Acidic 61.7 4.6 21.2 21.7 77.6 4.52 3/4 4/5 4 4/5
  Alkaline 54.8 4.8 21.6 22.1 77.3 7.30 4 4/5 4 5
3 Neutral 62.5 3.0 18.0 18.2 80.4 2.84 4/5 4/5 4 5
  Acidic 62.9 3.6 19.4 19.7 79.3 3.33 3/4 4/5 4 5
  Alkaline 59.7 3.3 20.2 20.5 80.5 4.13 4 4/5 4 5
1 Neutral 70.4 1.7 18.6 18.7 84.8 1.74 4/5 4/5 4/5 5
  Acidic 69.7 2.6 18.5 18.7 81.8 1.81 3/4 4/5 4/5 5
  Alkaline 68.1 2.3 20.1 20.3 83.3 2.17 4 4/5 4/5 5
0.5 Neutral 75.1 1.1 18.6 18.7 86.7 1.19 4/5 4/5 4/5 5
  Acidic 75.0 1.8 18.6 18.7 84.4 1.22 4 4/5 4/5 5
  Alkaline 73.8 1.4 20.4 20.5 86.0 1.41 4 4/5 4/5 5
  1. Abbreviations: c.c. color change
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