Multi-ply paper towel with absorbent core

Paper making and fiber liberation – Processes and products – Multi-layer waterlaid webs or sheets

Reexamination Certificate

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Details

C162S111000, C162S117000, C162S123000, C162S135000, C162S172000, C428S156000, C428S172000

Reexamination Certificate

active

07662257

ABSTRACT:
A multi-ply absorbent sheet of cellulosic fiber with continuous outer surfaces is provided an absorbent core between the outer surfaces. The absorbent core includes a non-woven fiber network having: (i) a plurality of pileated fiber enriched of relatively high local basis weight interconnected by way of (ii) a plurality of lower local basis weight linking whose fiber orientation is biased along the direction between pileated interconnected thereby, and (iii) a plurality of fiber-deprived cellules between the fiber enriched and linking regions, also being characterized by a local basis weight lower than the fiber enriched regions. The cellules provide a sponge-like internal structure of low fiber density regions.

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