VISUALISATION OF THE NANO-STRUCTURE OF TENCEL~R (LYOCELL) AND OTHER CELLULOSICS AS AN APPROACH TO EXPLAINING FUNCTIONAL AND WELLNESS PROPERTIES IN TEXTILES

摘要

The special functional and wellness properties of TENCEL~R textiles (generic name:Lyocell)have been demonstrated:the cool and smooth surface (gentle to the skin),the wear comfort properties due to excellent moisture transport and buffering,and the temperature control.The background for this is the nano- structure of Lyocell fibres,which is radically different to the other known cellulosics.Earlier studies have shown that the pore structure depends on the spinning and treatment parameters.Following a crystallization model of cellulose out of NMMO solution,the fibre cross-section contains a compact core,a porous middle zone and a semi-permeable fibre skin.Classical analysis methods deliver quantitative information about the pore structure and even the pore size distribution,but no information on their spatial distribution.