Hollow fibers impregnated with solid particles

Details Hollow fibers impregnated with solid particles Hollow fibers impregnated with solid particles

D - Textiles, Paper

01

D

D01D 5/253 (2006.01) B01D 39/08 (2006.01) D01D 5/24 (2006.01) D01F 1/10 (2006.01) D04H 3/02 (2006.01)

Patent

CA 2272293

A nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24), smaller than the cavity width, to the fiber (20) surface and each retaining within the internal cavity (22) a large number of relatively small solid particles (18). The small solid particles (18), which can be an adsorbent such as activated carbon, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive.

On décrit un mat (10) ou un milieu filtrant non tissé formé d'une pluralité de fibres creuses (20) globalement allongées qui comportent chacune une cavité interne (22) dotée d'une ouverture (24) plus petite que la largeur de la cavité vers la surface de la fibre (20), chaque fibre contenant dans la cavité interne (22) un grand nombre de particules solides (18) relativement petites. Les petites particules solides (18) qui peuvent être un adsorbant tel que du charbon actif sont piégées de manière permanente dans les cavités longitudinales (22) des fibres (20) sans l'aide d'un adhésif.

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