D - Textiles – Paper – 01 – D
Patent
D - Textiles, Paper
01
D
D01D 5/30 (2006.01) D01D 1/10 (2006.01) D01D 5/08 (2006.01) D01D 5/32 (2006.01)
Patent
CA 2168640
A composite yarn formed of at least two different individual polymeric fibers may be spun by directing at least two streams of different polymer melts (e.g., polymer melts of different colors and/or characteristics) to a spin pack such that one of the streams has a greater volumetric throughput as compared to the volumetric throughput of the other stream. The polymer streams are each distributed within the spin pack among individual filtration chambers so that the filtration chambers receive substantially the same volumetric throughput allotment of the polymer melt streams. In such a manner, the polymer melt streams are distributed among the filtration chambers in substantially equal throughput allotments even though the total throughput of the melt streams of each of the different polymers may be unequal. The filtered polymer melt streams may then be directed through fiber-forming orifices of a spinneret plate to form the composite yarn.
Flynn William C. III
Wright Donald E.
Basf Corporation
Robic
LandOfFree
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