Dear TissueMAG Reader, MARE is back on TissueMAG pages to introduce its capabilities in the field of Halogenated Organic Compounds (HOC) assessment and management. Halogenated Organic Compounds have become a matter of concern in the latest years for many industrial fields, papermaking being one of those, as they have been indicated as possible precursors of mutagenics. The chemical categories in which they fall are today well known, namely AOX (Adsorbable Organically bound Halogens), that is HOC which can be absorbed on activated carbon, EOX (Extractable Organically Bound Halides), that is HOC which can be extracted with a non-polar solvent and POX (Purgeable Organically Bound Halogens), HOC which can be purged in the gas phase under defined conditions with an auxiliary gas.
AOX is by far the most common category in many industrial fields as it is in Papermaking and Tissuemaking. Inside AOX, the substances of highest interest for Tissue are the well-known 1.3-dichloro-2-propanol (1.3-DCP) and 3-monochloropropane-1.2-diol (3-MCPD), generally referred to as DCP and MCPD. Recommendation BFR XXXVI for the production of paper for food contact defines the maximum residual quantities of these substances to be found in paper and tissue. As DCP and MCPD are typical byproducts of wet strength resin productions, a lot of effort has been put by the producers of Wet Strength Resins to reduce their quantity in the product mix.
From Paper and Board to manufacturing as a whole