F. Ruzinsky et al., RELATION BETWEEN ULTRA-HIGH-YIELD ASPEN PULP PROPERTIES AND FIBER CHARACTERISTICS BY MULTIPLE LINEAR-REGRESSION, Cellulose Chemistry and Technology, 30(3-4), 1996, pp. 267-279
In this study we used a systematic and complete linear regression anal
ysis in order to analyze a process performance and the most significan
t characteristics of ultrahigh-yield aspen pulps. For this, seven stea
m explosion pulps (SEP), six chemimechanical pulps (CMP), four chemith
ermomechanical pulps (CTMP), two refiner mechanical pulps (RMP) and on
e water explosion pulp (no chemicals) were prepared The best square re
gression coefficients were obtained for the two-x model where ''x'' is
the pulp density and L-factor. The second best two-x model has the su
lfonate content and pulp density and the third best two-x model has th
e sulfonate content and L-factor as independent variables. Steam explo
sion pulps showed the highest strength properties and lowest opacity.
Brightness of explosion pulps is comparable with CMPs. The SEP yield i
s tower than that of CMP, CTMP and RMP but on the other hand, the refi
ning energy consumption decreased and the mechanical properties improv
ed more in the case of SEP. CTMPs reveal the highest brightness, while
RMP reveals the highest opacity.