Optimization of Spraying Process via Response Surface Method for Fabrication of Cellulose Nanofiber (CNF) Film

Table 1

Factor for central composite design.

Factor	Name	Units	Type	Subtype	Minimum	Maximum	Coded low	Coded high	Mean	Std. dev.
	Suspension concentration	wt. %	Numeric	Continuous	0.5000	2.25			1.38	0.4532
	Velocity of the conveyor	cm/s	Numeric	Continuous	0.2500	0.6000			0.4250	0.0906
	Spray distance	cm	Numeric	Continuous	30.00	50.00			40.00	5.18