Filtration sheet made of aramid fiber, process for its preparation, method of reducing the diameter of an aramid fiber and fiber thus obtained, filter element, method of treating a fluid using it.

摘要

The present invention relates to a filter sheet made of polymeric fiber, in particular aramid, having a relatively small pore size and a high pore uniformity. BR/ According to the invention, aramid fibers of reduced diameter are prepared which form the filter sheet for treating a fluid. BR/ The invention applies in particular to the reduction of the titre against very small bacteria such as Pseudomonas diminuta. / P