A total of 20 g (dry content) of disintegrated pulp was placed in a double polyethylene bag together with deionised water. After kneading the pulp, chlorine dioxide was charged with three percent ClO2, used for bleaching oven-dried pulp. Sixty-five percent of this was added at the D0 stage and the rest at the D1 stage at 8% consistency. No adjustment of the pH of the pulp suspension was made. After 1 minute of further kneading, the pulp was placed in a water bath with a constant temperature of 75 °C. The bag was kneaded again after a further 5 and 30 minutes. After 60 and 90 minutes of bleaching in the D0 and D1 stages respectively, the bag was opened. The pulp was then washed via the same method used in the oxygen delignification process and subsequently placed in a new plastic bag for further treatment.