Durable melt-blown fibrous sheet material

Details Durable melt-blown fibrous sheet material Durable melt-blown fibrous sheet material

1986-08-22

1987-07-21

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428284, 428286, 428288, 428296, 428297, 428298, 428299, 428300, 428373, 428408, 428903, 428913, B32B 516

Patent

active

046818014

ABSTRACT:
A durable fibrous sheet material comprised of a melt-blown fiber web having a plurality of reinforcing fibers extending therethrough is provided. The reinforcing fibers are needled through the web of melt-blown fibers and are then bonded to fibers on the opposing faces of the layer of melt-blown fibers to hold the reinforcing fibers in position. Solid particles can be dispersed in the layer of melt-blown fibers. Such particles are preferably vapor-sorptive particles, e.g., activated carbon, so that the sheet material will sorb vapors passing therethrough. The sheet material is particularly useful as a component of a chemical protective garment.

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Kirk-Othmer, Encyclopedia of Chemical Technology, (3rd ed.), vol. 16, pp. 72-124, entitled "Non-Woven Textile Fabrics".

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