Method for recycling pulp rejects
OwnerDieter Munchowinventor
Life of this patent
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Abstract
The present invention relates to a process for recycling cleaner rejects from the preparation of paper, paperboard and cardboard and to their use for the preparation of paper in the paper stock or as a coating slurry for the paper industry.
Claims12
A process for recycling solid cleaner rejects from the preparation of paper, paperboard and cardboard, especially from centrifugal cleaners from the preparation of paper, paperboard and cardboard, characterized in that cleaner rejects, which contain fibers, coating pigments and/or fillers, are milled to the desired grain size distribution, optionally with the addition of water, coating pigment, fresh filler and/or filler slurry, and employed as a raw material for the paper stock and/or coating slurry.
Use of a cleaner reject slurry according to one or more of the preceding claims for the preparation of a precoating slurry for the paper industry, especially of coating slurries for various segments, such as sheet-fed offset, rotary offset, intaglio printing, cardboard and special papers.
Dependencies are inferred from the claim text.