The Change of Swelling of Pulp Fibres under Recycling

Abstract

During the process of monitoring of pulp fibres swelling, which is directly related to absorptivity, it was found that with the growing number of recycling cycles this characteristics significantly decreases. This phenomenon, which is considered as negative from the point of view of pulp fibres utilizing for paper manufacturing, could potentially find its positive application in other areas, eg. in the civil engineering for production of lightweight composites, where the reduction of water absorption of natural fibre materials is desirable.