The Dyeing Procedures Evaluation of Wool Fibers with Prangos ferulacea and Fastness Characteristics

Table 1

Proposed experimental ranges of dyeing procedure and coded levels of independent variable factors.

Process variables	Code	Real values of the coded levels
		−1	0	1
Dye concentration (%, owf)	X1	20	40	60
Aluminum sulphate concentration (%, owf)	X2	0	5	10
Dyeing temperature (°C)	X3	50	70	90
Dyeing time (minute)	X4	30	75	120