SAETT ATT REDUCERA MISSFAERGNING OCH/ELLER KLIBBIGHET VID UPPARBETNING AV AVFALLSPAPPER.

摘要

In the upgrading of waste paper a surface active tertiary or quaternary ammonium compound is added in an amount of 0.05-2.0% calculated on the weight of dry cellulose fibres. By the addition the inconveniences caused by the presence of discolouring and tacky compounds are reduced.