Hydraulically entangled nonwoven fabric with high web strength

Details Hydraulically entangled nonwoven fabric with high web strength Hydraulically entangled nonwoven fabric with high web strength

D - Textiles, Paper

04

H

28/8

D04H 3/08 (2006.01) D04H 1/46 (2006.01) D04H 11/00 (2006.01)

Patent

CA 1285132

HYDRAULICALLY ENTANGLED NONWOVEN FABRIC WITH HIGH WEB STRENGTH ABSTRACT A web of gray cotton fibers is entangled by passing it under a series of low pressure liquid nozzles or jets which are oscillated in a direction transverse to the direction of travel of the web. The entangled web is then subjected to a cotton scouring step, and then dried, to produce a strong coherent nonwoven fabric that requirres no resin binder and has a high capacity for water. Particular parameters of liquid pressure, frequency and amplitude of oscillation of the nozzles or jets and energy transferred from the jets to the fibers have to be maintained. The nonwoven fabric thus produced comprises at least a major proportion of cotton fibers, is free of natural oils, waxes, and synthetic resin binders, and has a tensile strength which is at least as great for the wet fabric as for the dry fabric in both the lengthwise and cross directions.

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