Electrically charged, consolidated non-woven webs

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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428288, 428296, 4283111, 4283115, 4283166, 4283155, 428903, 210505, 55528, B32B 2700

Patent

active

054864119

ABSTRACT:
A consolidated non-woven web made by post-treating a precursor nonwoven web including consolidating the web laterally by drawing, thereby reducing the maximum pore size measure of the web and improving the filtration efficiency of the web, and subjecting the consolidated web to an electrostatic field to further enhance filtration efficiency.

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