Optimisation of fragrance finishing on cotton by grafting of β-cyclodextrin based microcapsules: Application of the experimental design methodology

Figures & Tables

Source	Degrees of freedom	Sum of squares	Variance	F	p-value
Regression	9	20.4000	2.2667	18.98	0.002
Residuals	5	0.5971	0.1194	–	–
Total	14	20.9971	–	–	–

Experiment N°	Coded values			Real values			Mean response

	X₁	X₂	X₃	U₁	U₂	U₃	G (%) (n = 3)
1	−1	−1	0	90	80	60	2.25
2	+1	−1	0	110	80	60	3.68
3	−1	+1	0	90	120	60	2.75
4	+1	+1	0	110	120	60	4.11
5	−1	0	−1	90	100	50	3.85
6	+1	0	−1	110	100	50	4.72
7	−1	0	+1	90	100	70	1.88
8	+1	0	+1	110	100	70	2.11
9	0	−1	−1	100	80	50	3.45
10	0	+1	−1	100	120	50	5.22
11	0	−1	+1	100	80	70	1.50
12	0	+1	+1	100	120	70	1.47
13	0	0	0	100	100	60	4.23
14	0	0	0	100	100	60	4.26
15	0	0	0	100	100	60	4.28

Coded variable	Natural variable	Unit	Levels

			−1	0	+1
X₁	U₁: microcapsules concentration	(g ⋅ L⁻¹)	90	100	110
X₂	U₂: CA crosslinking agent concentration	(g ⋅ L⁻¹)	80	100	120
X₃	U₃: DHP CAT	(g ⋅ L⁻¹)	50	60	70