ABSORBENT FIBROUS PRODUCT CONTAINING AT LEAST 50% OF HYDROPHILIC CELLULOSE FIBERS AND INCLUDING AT LEAST TWO LAYERS, ONE OF WHICH IS HYDROENTANGLED

摘要

The present invention relates to an absorbent fibrous product containing at least 50% of cotton fibers or other cellulose fibers and less than 0.1% of a chemical or hot-melt binder, including a first layer consisting of hydroentangled non-woven fabric and a second layer consisting of fibers that are more weakly bonded together than the fibers of the first layer, the bonding of the fibers of the second layer resulting from a hydrophilic treatment of the layer of fibers, the two layers being bonded by adhesion of the entire surface between the fibers of the two layers, and the debonding force being at least 0.1 N. The invention also relates to a manufacturing method, which includes the following steps: a) forming at least two separate laps of fibers, one of which is at least partially made of cotton fibers or other cellulose fibers; b) consolidating a first of said laps by bonding using fine water jets; c) stacking the laps; and d) the hydrophilic treatment of the formed complex lap by means of wetting, followed by extracting the liquid, in particular by subjecting the lap to negative pressure.