The color strength (K/S) was measured
using the Win lab Software of the Perkin
Elmer, Lambda 35 spectrophotometer
according to ASTM, D: 2288-93. The color
fastness to light was measured according to
ASTM, D: 2053-86, while the color fastness
to wash and perspiration was determined
according to AATCC (1998) 15-1960 and
36-1961. These properties were measured at
the National Institute for Standards, Textile
Department, Giza, Egypt