Patent ID: 7914637
Filing Date: 2011-03-29
Classification: B32B,D04H,Y10T

Abstract:
1. A method for manufacturing spunbonded and/or carded nonwoven, comprising the following sequential steps: a) laying at least one layer of fibres or microfibres of spunbonded and/or carded nonwoven on a suitable support at a first level; b) treating said layer such as to obtain an increase in the thickness thereof by passing the layer on said support between two opposed rollers, the support having a contact surface with said fibres or microfibres provided with ribs alternating with grooves, and wherein the roller underlying said support with ribs and grooves is provided with a thermoplastic smooth rubber outer surface and the opposing roller is provided with a smooth metal outer surface and is subject to heating at the melting temperature of said fibres or microfibres, and wherein the ribs of said support face the heated roller with a smooth metal outer surface, the ribs having a height greater than 1 mm, a free head with a contact surface for the fibres or microfibres having an area of less than 0.80 mm 2 , said ribs being distributed so as to cover 7-9% of said contact surface of the said support.