Total Chlorine-Free Bleaching of Populus deltoides Kraft Pulp by Oxone

Figure 1

Effect of alkali charge; reaction temperature; reaction time on bleaching response in Oxone first stage bleaching with 5% Oxone ((a), (b), and (c)) and second-stage bleaching with 5% Oxone ((d), (e), and (f)).

(a)

(b)

(c)

(d)

(e)

(f)