The effect of fiber swelling on press dewatering

The study of water behaviour in regenerated cellulosic fibres by low-resolution proton NMR

“…An understanding of the interaction of water with cellulose at the molecular level is therefore essential for the interpretation and prediction of fibre performance in use [5,15]. Such molecular interactions will depend on the structure and chemistry of the internal cellulose surfaces, which will be sensitive to the effects of different processing technologies [16,17].…”

Study of the mechanical behavior of recycled fibers. Applications to papers and paperboards.

“…Pressing and drying close most of the macropores whereas micropores of the cell wall remain unaffected [214]. However, it is also reported that hornification can partially collapse the micropores [150,153]. Similar effects have also been reported for non-wood fibres but at a reduced intensity because of the presence of higher pentosan content [59].…”

The Effects of Paper Recycling and its Environmental Impact

“…The entire fiber is stiffer and more brittle (Howard 1991). According to some studies (Bouchard & Douek 1994;Maloney et al 1998), hornification does not increase the crystallinity of cellulose or the degree of order in the hemicelluloses of the fiber wall. Fig.…”

“…In contrast to the chemical pulps, originally weaker mechanical pulps do not deteriorate but somewhat even improve bonding potential during a corresponding treatment. Several studies (Maloney et al 1998;Weise 1998;Ackerman et al 2000) have shown good recyclability of mechanical fibres. Adámková a Milichovský (2002) present the dependence of beating degree (°SR -SchopperRiegler degree) and WRV from the relative length of hardwood and softwood pulps.…”