Molded filter element that contains thermally bonded staple fibers and electrically-charged microfibers

   
   

A filter element that comprises a porous molded web 10' that contains thermally bonded staple fibers 12 and non-thermally bonded electrically charged microfibers 14. The molded web is retained in its molded configuration, at least in part, by bonds between the staple fibers 12 at points of fiber intersection 13. The web may be molded, for example, into the shape of filtering face mask 16.

Un elemento filtrante que abarca una tela moldeada porosa 10' que contenga las fibras de grapa termal enlazadas 12 y los microfibers eléctricamente cargados non-thermally enlazados 14. La tela moldeada es conservada en su configuración moldeada, por lo menos en parte, por los enlaces entre las fibras de grapa 12 en los puntos de la intersección 13 de la fibra. La tela se puede moldear, por ejemplo, en la forma de la mascarilla de filtración 16.

 
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