Use alum mordant (see pages 67 to 68). Cover the bark with water and 

 allow it to soak overnight. The following morning boil it for 30 minutes, 

 strain out the bark and add enough water to make a 4 to 4}^ gallon dye- 

 bath. Before immersing mordanted wool in the dyebath, thoroughly rinse 

 it and squeeze out excess moistvire. Immerse the wool; heat it to boiling; 

 boil 30 minutes. Without rinsing, transfer it to a boiling bath of potassium 

 dichromate, acetic acid and 4 gallons of water. 



Rose -Tan Wool : alum mordant 

 Colorfastness : fair to light, good to washing 

 1 pound wool 



12 ounces dry sassafras root bark 

 }^ ounce ferrous sulfate (copperas) 



Mordant the wool with alum. Follow directions for dyeing "Brown 

 Wool" (above), using ferrous sulfate instead of potassium dichromate 

 and acetic acid or vinegar. 



Rose-Tan Cotton: alum-tannin-alum mordant 

 Colorfastness: fair to light, good to washing 

 1 pound cotton 



12 ounces dry sassafras root bark 

 Ye ounce potassium dichromate 

 }i ounce acetic acid, or 6 to 7 tablespoons vinegar 



Use alum-tannin-alum mordant (see pages 67 to 69). Follow directions 

 for dyeing "Brown Wool" (above). 



Dark Gray Cotton: alum-tannin- alum mordant 

 Colorfastness: fair to light, good to washing 

 1 pound cotton 



12 ounces dry sassafras root bark 

 Yq ounce ferrous sulfate (copperas) 



Use alum-tannin-alum mordant (see pages 67 to 69). Follow directions 

 for dyeing "Brown Wool" (above), using ferrous sulfate instead of potas- 

 sium dichromate and acetic acid or vinegar. 



Sumach Berries {Rhus glabra) 



White or smooth sumach is a common shrub growing in dry soil of 

 Eastern United States. The berries, leaves, and roots of this sumach have 

 been used for dyeing textile materials for many years. 



Dark Yellow-Tan Wool: alum mordant 

 Colorfastness: good 

 1 pound wool 

 Yi peck ripe sumach berries 



Use alum mordant (see pages 67 to 68). Cover the berries with water 

 and soak them for an hour. Boil them 30 minutes, strain out the berries 



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