A PROCESS FOR PREPARING A UNIDIRECTIONAL FIBER WEB, THE USE THEREOF FOR PREPARING UNIDIRECTIONAL COMPOSITE MATERIALS

摘要

A process for preparing a unidirectional fiber web is disclosed, which comprises disposing several rovings side by side, each having a plurality of individual fiber filaments, and needling transversally said rovings, thereby opening the rovings and forming a continuous fiber web therefrom. This continuous unidirectional fiber web can be used for preparing unidirectional composite materials through a wet method.