Abstract

This paper mainly compares and analyses the moisture permeability of natural sheepskin and regenerated leather with temperature and time. It was found that the effect of temperature on the moisture permeability of natural sheepskin and regenerated leather was significantly greater than that of time. The performance and trend of moisture permeability of recycled leather under both time and temperature are similar to that of sheepskin as a whole. At a low temperature below 50°C, the moisture permeability of recycled leather is comparable to that of natural sheepskin; as the temperature rises, its moisture permeability gradually opens up the gap with that of sheepskin. By SEM characterisation, it was found that the fibrous tissues of the natural sheepskin papilla layer were tightly connected and the fibrous tissues of the reticulated layer were loose and disordered; the recycled leather mainly consisted of crushed fibrous waste and adhesive, and the fibres were stuck with adhesive between them.