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AssigneeHoneywell International Inc.
InventorsJohn B. Boyle, Alexander Lobovsky, James A. Matrunich, Carole G. Shealy, Bruce W. Portus
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Novel filaments and yarns for carpets, upholstery and other applications, the spinneret and method for their production and carpets manufactured therefrom. The filaments of the invention are solid multi-lobal filaments of complex convex-concave surface contour possessing low luster, low moment of inertia, high color intensity upon dyeing and high covering power. Carpets manufactured therefrom possess low luster, soft hand, high covering power and high body suitable for premium residential application. The filaments of the invention are produced at high throughput and productivity by the method of the invention.
A filament comprising a solid cross-section having a perimeter comprised of a plurality of lobes that are joined to one another by concave line segments, said cross-section having a modification ratio of about 2.4 to about 5;
A capillary spinneret orifice comprising:
The capillary spinneret orifice of claim 27 wherein the orifice area is about 4×10−4 in2 (0.26 mm2) to about 11×10−4 in2 (0.71 mm2) and the width of the nipple section is about 0.0030 inches (0.0762 mm) to about 0.004 inches (0.106) mm).
A method of yarn production comprising the steps of:
Dependencies are inferred from the claim text.