The effect of freeze-drying on the physical properties of cellulose fibres and paper : the capillary flow of liquids with entrapped air bubbles.

The recorded history of papermaking extends almost 2000 years back to the early Chinese who clubbed vegetable fibres to a pulp which they formed into a mat and dried in the sun. Although methods have vastly improved, the basic principle has not changed - the evaporation of liquid water from a mat of wet cellulose fibres. [...