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Table 1 Colorimetric properties of unmordanted and mordanted dyed wool samples

From: Dyeing studies and fastness properties of brown naphtoquinone colorant extracted from Juglans regia L on natural protein fiber using different metal salt mordants

Mordant L* a* b* K/S
1% walnut
 Unmordanted 62.46 3.04 11.27 1.12
 1% SnCl2 65.13 2.45 12.3 1.38
 5% FeSO4 54.97 2.82 4.88 2.17
 10% alum 69.43 3.56 14.93 1.13
5% walnut
 Unmordanted 49.20 5.77 9.21 1.51
 1% SnCl2 56.3 5.66 11.08 1.66
 5% FeSO4 51.28 4.75 8.42 2.50
 10% alum 58.3 6.17 12.24 1.51
10% walnut
 Unmordanted 50.71 7.09 10.59 2.60
 1% SnCl2 43.61 8.44 11.83 4.23
 5% FeSO4 64.25 6.60 16.42 5.80
 10% alum 48.36 6.81 10.96 2.80
15% walnut
 Unmordanted 41.38 6.13 8.35 3.76
 1% SnCl2 33.05 5.28 9.63 7.68
 5% FeSO4 35.86 7.43 10.7 9.27
 10% alum 41.48 5.68 9.61 4.22
20% walnut
 Unmordanted 41.12 5.86 7.73 4.27
 1% SnCl2 34.97 7.54 10.48 7.95
 5% FeSO4 27.50 4.98 6.92 11.51
 10% alum 38.62 7.14 10.54 6.14
  1. *denotes CIE version