| 摘要 |
<p>The invention concerns a method for deinking inkjetink -containing suspensions, such as inkjet ink -containing pulps or process waters of deinking processes. The method comprises providing paper raw material containing aqueous dye-based inkjet-printed paper,pulping the paper raw material to obtain pulp containing inkjet ink from the inkjet-printed paper, and decolorizing the inkjet ink of the pulp. According to the invention, the decolorization phase is carried out by laccase treatment. The invention also relates to a novel use of laccase for the decolorization of aqueous dye-based inkjet inks. By means of the invention, the recyclability of inkjet-printed papers can be increased.</p> |
