Rose-Tan Wool: chrome mordant 



Colorfastness : fair to light, good to washing 



Use Dye Method 1 (see page 72) 



Light Brown Wool: alum mordant 



Colorfastness: fair to light, good to washing 



Use Dye Method 2 (see page 72) 



Light Gray Cotton : alum-tannin-alum mordant 



Colorfastness: fair to light, good to washing 



Use Dye Method 1 (see page 72) 



Drab Cotton: alum-tannin-alum mordant 



Colorfastness: good 



Use Dye Method 2 (see page 72) 



Oak Bark, Black or Quercitron (Quercus velutina) 



Ouercitron, the dyestuflf prepared from the inner bark of black- or 

 quercitron-oak trees, is more potent than the dye produced by any other 

 bark mentioned in this publication. It is found in the eastern half of the 

 United States, especially in Pennsylvania, Georgia, and the Carolinas. 

 The bark itself may be used, or a pure dye extract of quercitron may be 

 purchased. The extract has much greater coloring power than the bark. 



The dye material in quercitron contains a type of tannin. Since tannin 

 dulls colors, prolonged boiling in a quercitron bath should be avoided. 



Gold Wool: chroine mordant 



Colorfastness : good 



Use Dye Method 1 (see page 72) for quercitron bark 



Use the following dye method for quercitron extract : 

 1 pound wool 

 Yi ounce quercitron extract 



Use chrome mordant (see pages 67 to 68). Then dissolve the quercitron 

 extract in 4 to 4}^ gallons of soft water. Immerse the material after thoroughly 

 rinsing it and squeezing out excess moisture. Heat to boiling the bath 

 containing the wool; boil for 30 minutes, rinse aad dry. 



Yellow-Tan Wool : alum mordant 



Colorfastness: fair to light, good to washing 



Use Dye Method 2 (see page 72) for quercitron bark 



Use the following dye method for quercitron extract: 

 1 pound wool 



}^ ounce quercitron extract 

 y^ ounce potassium dichromate 

 y^ ounce acetic acid, or 6 to 7 tablespoons vinegar 



75 



