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International Journal of Interdisciplinary Research

Table 1 Dyewood concentrations and standard depth of shade to achieve comparable color depth between potassium aluminum sulfate (PAS) mordanted and nonmordanted wool yarn

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

Dyewood and mordant type Concentration to owf (%) Standard depth
Black walnut
PAS mordant
100 1/12
Black Walnut
No mordant
200 1/12
Osage orange
PAS mordant
40 1/1
Osage orange
No mordant
50 1/1
Eastern redcedar
PAS mordant
100 1/25
Eastern redcedar
No mordant
150 1/25
  1. The depth of shade scale consists of six designations; there is “standard depth” at 1/1, “double depth” at 2/1 that is darker than standard depth, and fractional depths with 1/3, 1/6, 1/12 and 1/25 that are lighter than standard depth, with 1/25 being the lightest