| 摘要 |
The present invention relates to methods for deinking and decolorizing a printed paper, comprising: (a) pulping the printed paper to obtain a pulp slurry; (b) dislodging an ink from the pulp slurry with one or more enzymes; (c) decolorizing the dye contained in the pulp slurry with one or more laccases in the presence of oxygen and optionally one or more chemical mediators; (d) separating the released ink from the pulp slurry; and (e) recovering the decolorized pulp. The present invention also relates to decolorized pulps prepared by such methods and to methods for producing recycled paper. |
