Pulp produced from hemp wood obtained from hemp stalks subjected to the retting process (Hw-r pulp) showed significantly worse susceptibility to bleaching with ClO2, because bleaching with 3% ClO2 resulted in a pulp brightness of approximately 84% ISO. As already mentioned, the susceptibility of pulps to TCF bleaching was also studied. Due to the fact that the complete bleaching of pulps solely with hydrogen peroxide is difficult to achieve; an additional peracetic acid treatment stage (Pa stage) was introduced into the bleaching sequence after the first peroxide stage. The former appeared to be a good lignin activator in our previous work [18 - 20]. Therefore the bleaching scheme was as follows: AP1PaP2.