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Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Brightness and Kappa number of pulp sheet samples

From: Behavioural analysis of a nonionic detergent in the kraft pulp washing process using cryo-time-of-flight secondary ion mass spectrometry and cryo-scanning electron microscopy

Samples (%)

Brightness (%)

Kappa number

#1-0

21.9 ± 0.8

29.6 ± 0.4

#2-0

27.9 ± 0.6

28.3 ± 0.2

#2-0.3

30.3 ± 0.7

27.9 ± 0.9

#2-1.0

29.3 ± 0.5

28.5 ± 0.5

#2-3.0

33.2 ± 0.9

28.3 ± 0.5

#3-0

36.8 ± 0.3

–

#3-0.3

37.5 ± 0.3

–

#3-1.0

38.0 ± 0.4

–

#3-3.0

38.5 ± 0.3

–

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