Abstract
Wool fiber and fabric were treated with dry heat (170°C/15min), super heat steam (170°C/15min) and high pressure steam (120°C/15min) respectively. Surface electric characteristics of the fibers were measured by ξ electric potetial and ESCA analysis. Effect of the heat treatments on color were investigated on the basis of the K/S measurement. Surface negative electric potential and O1S intensity increased a little by the heat treatments. Furthermore, the fibers and fabrics were dyed with two acid dyes, levelling type C. I. Acid Red 18 and milling type C. I. Acid Blue 83. The rate of dyeing for both dyes increased with an increase of the heat treatment temperature. Saturation dye exhaustion increased especially for C. I. Acid Blue 83.
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