Tag Archives: wool

Comparison of Aluminum Mordanted and Nonmordanted Wool and Cotton Dyed with Walnut

Kelsie Doty, Kansas State University

Full manuscript: www.kon.org/urc/v12/doty.html

Abstract:The purpose of this research was to compare mordanted and nonmordanted cotton and wool fabrics, dyed with black walnut (Juglans nigra) leaves, hulls, and bark for colorfastness properties. Half of the cotton fabrics were mordanted with aluminum acetate and half of the wool fabrics were mordanted with potassium aluminum sulfate. Colorfastness to laundry and light for both cotton and wool were improved with the use of an aluminum mordant. However, the use of a mordant changed the color from a cool (blue) and dull brown to a warmer (yellow) and brighter brown. Overall, walnut bark dyed wool had the highest ratings for both fastness to laundry and light.

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