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Fashion and Textiles

International Journal of Interdisciplinary Research

Table 4 Two-sample t test results of mordant type for colorfastness to light and laundering on dyed wool yarn: colorfastness is indicated in terms of color difference ΔE of samples before and after light or laundering exposure

From: Black walnut, Osage orange and eastern redcedar sawmill waste as natural dyes: effect of aluminum mordant on color parameters

 

Nonmordanted

Mordanted

t value

M

SD

M

SD

Exposure to light

Black walnut

5.17

1.31

3.95

1.25

2.01*

Osage orange

12.52

1.14

11.70

1.35

1.38

Eastern redcedar

6.51

0.72

5.72

0.95

1.99*

Exposure to laundering

Black walnut

2.56

0.71

4.61

0.50

−7.09***

Osage orange

5.57

0.57

4.26

1.07

3.25**

Eastern redcedar

2.35

0.70

3.83

0.60

−4.80***

  1. * p < 0.05
  2. ** p < 0.01
  3. *** p < 0.001
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