Multi-ply absorbent sheet of cellulosic fibers

摘要

A multi-ply absorbent sheet of cellulosic fiber includes continuous outer surfaces, and an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network comprising a plurality of pileated fiber enriched regions of a relatively high local basis weight interconnected by way of a plurality of lower local basis weight linking regions whose fiber orientation is biased along the direction between pileated fiber enriched regions, interconnected thereby, and a plurality of fiber-deprived cellules between the fiber enriched regions and the linking regions, also being characterized by a local basis weight lower than that of the fiber enriched regions.

主权项

1. A multi-ply absorbent sheet of cellulosic fiber, the sheet comprising:
(a) continuous outer surfaces; and (b) an absorbent core between the outer surfaces, the absorbent core including a non-woven fiber network comprising:
(i) a plurality of pileated fiber enriched regions having a relatively high local basis weight interconnected by way of (ii) a plurality of lower local basis weight linking regions whose fiber orientation is biased along the direction between the pileated fiber enriched regions interconnected thereby, and (iii) a plurality of fiber-deprived cellules between the pileated fiber enriched regions and the linking regions, the fiber-deprived cellules having a local basis weight that is lower than that of the pileated fiber enriched regions, wherein the non-woven network of the absorbent core is an open mesh structure, such that the plurality of fiber-deprived cellules have regions devoid of fiber.