Multi-apertured web with incremental orientation in one or more

Details Multi-apertured web with incremental orientation in one or more Multi-apertured web with incremental orientation in one or more

1979-04-23

1981-06-30

Woo, Jay H.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including aperture

264154, 264284, 264294, 428180, 2642884, B28B 148, B32B 310

Patent

active

042763363

ABSTRACT:
A thermoplastic non-woven net fabric and a method of making the same. The fabric includes a plurality of apertures with the apertures surrounded by axially drawn, biaxially drawn and undrawn areas. In one method, the web is perforated and then drawn by one or more pairs of helical rollers. The differential drawing of the perforated web greatly increases the tensile strength, area and drapability of the fabric. The apertures make the fabric suitable for use in garments, pillowcases, sheets, sterile wraps and is a breathable waterproof fabric for use in rain gear and tents. Two layers of the fabric can be used to form a pouch or carrier for conditioning agents such as a fabric softener for a laundry dryer, the softener agent being controllably released through the apertures.

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