Polyvinyl alcohol fibers, and nonwoven fabric comprising them

Details Polyvinyl alcohol fibers, and nonwoven fabric comprising them Polyvinyl alcohol fibers, and nonwoven fabric comprising them

2011-02-22

2011-02-22

Ortiz, Angela (Department: 1798)

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

Nonwoven fabric

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

C442S335000, C442S337000, C442S402000, C442S408000, C428S364000, C428S365000, C428S372000, C428S397000, C428S400000, C028S103000, C028S104000, C028S107000

Reexamination Certificate

active

07892992

ABSTRACT:
Readily-fibrillable fibers of PVA polymer, having good chemical resistance, hydrophilicity, weather resistance and water resistance have a flattened cross-sectional profile and have a mean thickness D (μm) that satisfies the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?0.4≦D≦5  (1)in-line-formulae description="In-line Formulae" end="tail"?wherein D=S/L; S indicates the cross-section area (μm2) of the fibers; and L indicates the length (μm) of the major side of the cross section of the fibers. The fibers can be used for making nonwoven fabrics.

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