Multilayer nonwovens incorporating differential cross-sections

Details Multilayer nonwovens incorporating differential cross-sections Multilayer nonwovens incorporating differential cross-sections

2006-12-26

2006-12-26

Torres, Norca (Department: 1771)

Fabric (woven, knitted, or nonwoven textile or cloth, etc.)

Nonwoven fabric

Including strand or fiber material which is of specific...

C442S335000, C442S338000, C442S381000, C442S382000, C442S389000, C442S401000, C442S415000

Reexamination Certificate

active

07153793

ABSTRACT:
Nonwoven fabric fabrics suitable for undergoing pleating to form filtration media are provided. The fabrics generally include at least three layers. The fibers forming the inner layer has a cross section providing greater stiffness, while the fibers forming the outer layers have a cross section providing greater durability. The resulting fabrics provide improved particulate holding and pressure drop characteristics at no sacrifice to durability.

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patent: WO 00/15891 (2000-03-01), None
patent: WO 01/90464 (2001-11-01), None

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