Method for manufacturing non soft, resistant volume and woven and nonwoven thus obtained

摘要

A method for manufacturing a nonwoven obtained by direct spinning or obtained by direct / carded yarn, comprising the following sequential steps: a) extruding continuous filaments or microfilaments strand through spinnerets to produce continuous filaments, obtained by direct spinning , having a straight section lobed, b) providing at least one layer (T1) of filaments or lobed microfilaments, obtained by direct spinning, on a suitable three-dimensional support S having said support S one ribbed surface in contact with said filaments or microfilament c) conducting a preconsolidation of said layer T1 passing the T1 layer supported by said support (S) D, between two rollers (2, 3), facing one of the rollers (3) to the layer T1, wherein the ridges on said surface of said support S have a height of between 0.3 and 5 mm, said ribs distributed to cover less than 14% said surface, and wherein said roller (3) facing the T1 layer is provided with a metal outer surface and is subjected to heating.