Process for producing a further tear-resistant fabric, tear-resistant fabric and its use

摘要

The aim is to specify a method which is as simple as possible, with which it is possible to produce fabrics with particularly good mechanical properties, in the sense of particularly high values with regard to the specific tear propagation force. The fabrics according to the invention are intended to be used in fields of application which in particular require a particularly high tear propagation force of the fabrics. Preferably, the fabrics should also have particularly high maximum tensile strength and / or elongation at break values. To this end, there is provided a method of making a further tear-resistant sheet in which a starting fabric of yarns, fibers or filaments formed of at least two elementary filaments and having an orange-slit or pie-piece arrangement with segments of different polymers viewed in cross-section, is used and the starting sheet is subjected to a compressive heat treatment, wherein the polymer segments are penetrated and an at least substantially non-adhesive bond is achieved by riveting or welding of the polymer Segemente. The fabrics, in particular nonwovens, preferably have a specific tear strength of equal to or greater than 0.4 N per g / m SUP 2 / SUP, preferably from 0.6 to 0.9 N per g / m SUP 2 / SUP (according to Tongue Method, ASTM D 2261).