Creped nonwoven materials
AssigneeKimberly-Clark Worldwide, Inc.
InventorEugenio Go Varona
Life of this patent
Estimating the term…
Abstract
A creped nonwoven web having permanent crepe includes regions of interfilament bonding which are permanently bent out-of-plane, alternating with regions of no interfilament bonding. The non-bonded regions include a multiplicity of filament loops which terminate at both ends in the creped interfilament-bonded regions. The creped nonwoven web is useful as the female component of a hook-and-loop fastener, and can also be used in diaper outercovers, liners, transfer and surge layers, wipers, and other fluid handling products.
Claims40
A permanently creped thermoplastic nonwoven web comprising:
- a nonwoven fibrous web at least partially covered with a creping adhesive, the nonwoven fibrous web having permanently creped interfilament-bonded regions alternating with non-creped regions of no interfilament bonding;
- the nonwoven web having a nonwoven web bond pattern which effects the interfilament-bonded regions;
- the interfilament-bonded regions being creped so as to exhibit permanent out-of-plane bending;
- the regions of no interfilament bonding including a multiplicity of filament loops terminating in the interfilament-bonded regions.
A female component for a hook-and-loop fastener, comprising:
- a permanently creped thermoplastic nonwoven web at least partially covered with a creping adhesive, the web having permanently creped interfilament-bonded regions bent out of plane, and non-creped regions of no interfilament bonding between the creped interfilament-bonded regions;
- the nonwoven web having a nonwoven web bond pattern which effects the interfilament-bonded regions;
- the regions of no interfilament bonding including a multiplicity of filament loops anchored at both ends in the creped regions.
An outercover material, comprising:
- a permanently creped thermoplastic nonwoven web at least partially covered with a creping adhesive, the web having permanently creped interfilament-bonded regions bent out of plane, and non-creped regions of no interfilament bonding between the creped regions;
- the nonwoven web having a nonwoven web bond pattern which effects the interfilament-bonded regions;
- and
- a moisture permeable, substantially liquid impermeable polymer-based film laminated to the creped thermoplastic nonwoven web.
Dependencies are inferred from the claim text.