Table 1 NIR band assignment of cotton fibers (s = strong, w = weak)

1 150∼1 300 (w)

2^nd overtone of CH stretching modes

1 300∼1 400 (w)

Combination bands of CH vibrations

1 400∼1 675 (s)

1^st overtone of OH stretching modes

1 675∼1 860 (w)

1^st overtone of CH stretching modes

1 940 (s)

Combination of OH stretching and deformation modes

2 105 (s)

Combination of OH and CO stretching vibrations

2 270 (s), 2 340 (s)

Combination bands