Nonwoven fabric sheet and method for making the same

A patterned spunbonded nonwoven fabric sheet comprising a plurality of spunbonded crimped fibers bonded together at a plurality of bonding points, wherein all fibers of the patterned spunbonded nonwoven fabric sheet are spunbonded crimped fibers,

• wherein a density of fibers, or a mean orientation of the fibers, or a mean crimp radius of the fibers within the fabric sheet, or any combination thereof, are inhomogeneous and varies according to a regular pattern,
• wherein the regular pattern is such that the fabric sheet has a three-dimensional structure comprising a plurality of alternating elevations and depressions arranged according to the regular pattern,
• wherein the three-dimensional structure is such that a cross-sectional profile of the fabric sheet in a cross-machine direction thereof is windy such that when there is an elevation on one surface of the fabric sheet, there is a depression on another surface of the fabric sheet corresponding to each elevation,
• wherein the fabric sheet comprises high-density areas having an above average fiber density of the fabric sheet, and low-density areas having a below average fiber density of the fabric sheet,
• wherein the plurality of alternating elevations and depressions are the high density areas and transition zones between the plurality of alternating elevations and depressions are the low-density areas,
• wherein the regular pattern comprises parallel, uninterrupted, straight stripes oriented in a machine direction of the fabric sheet and said regular pattern is irrespective of the plurality of bonding points present, and
• wherein each of the parallel, uninterrupted, straight stripes is a continuous stripe from one end of the fabric sheet to another end of the fabric sheet.