Abstract

s-Cyclodextrin (s-CD) solubilizes stickies from deinked pulp, commercial adhesive formulations, or magazine inserts, which demonstrates its potential as a washing aid. A new test to simulate coater scratches is described; it involves scraping the test paper sample across the surface of a thin layer chromatography plate and measuring the degree of scratching on the plate. Scratching was significantly reduced when the paper was pre-treated with s-CD. A trial at a recycle paper mill confirmed that s-CD reduces the tack of filtrate components.

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