POLYPROPYLENE FIBER AND PREPARATION THEREOF

摘要

DISCLOSED IS A POLYPROPYLENE FIBER , WHICH IS OBTAINED FROM AN ISOTACTIC POLYPROPYLENE HOMOPOLYMER WITH AN ISOTACTIC INDEX OF 90 TO 99% THROUGH MELT-SPINNING OR THROUGH DRAWING AFTER MELT-SPINNING, AND SHOWS TWO DIFFERENTIAL SCANNING CALORIMETER (DSC) ENDOTHERMIC PEAKS BETWEEN 155 AND 170 °C. WHEN BEING THERMALLY BONDED WITH ONE ANOTHER , THE FIBERS ARE MADE INTO NON-WOVEN FABRICS WHICH HAVE EXCELLENT STRENGTH IN ADDITION TO BEING SOFT A HIGH QUALITY OF THE NON-WOVEN FABRICS CAN BE PRODUCED IN HIGH SPEED CARDING MACHINES WITH HIGH YIELDS. FIGUR 1.