Good synergism occurred when was used at concn. of 1g/L and II 0.5g/L, yielding samples with whiteness of 72.33.The structure of the milk fibers was not affected by the oxidation-reduction.

• 当二氧化硫脲质量浓度为1g/L、保险粉质量浓度为0.；5g/L时，具有较好的协同作用，其漂白试样白度可达到72