Table 6.

Factorial analysis of handsheet properties.

Factor	Tensile index (N*m/g)	Burst index (kPa*m2/g)	Ring crush index (kgf*m2/g)	Bulk (cm3/g)
X1	0.095	−0.035	−0.390	0.160*
X2	1.405*	0.135*	0.960*	−0.500*
X1X2 interaction	−0.345	−0.065	−0.850*	0.270*
Assessed value	0.449	0.090	0.449	0.090
Pooled standard deviation (s)	0.035	0.007	0.035	0.007

*Means the factor impact is significant; Factor X₁: Digestion time; Factor X₂: NaOH dosage.