Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Reexamination Certificate
2008-01-29
2008-01-29
Befumo, Jenna (Department: 1771)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
C428S364000, C428S397000, C428S401000, C028S247000, C028S271000
Reexamination Certificate
active
07323244
ABSTRACT:
Disclosed is a low and weakly-interlaced industrial polyester multifilament yarn, which has excellent flatness and flat uniformity, and in which the number of monofilament layers is properly controlled according to a fineness of the low and weakly-interlaced polyester multifilament yarn and monofilaments are interlaced, thereby reducing a surface brightness gradient of a coated fabrics, produced using the low and weakly-interlaced polyester multifilament yarn, when light is irradiated to the coated fabrics. Additionally, the present invention provides a method of producing the low and weakly-interlaced polyester multifilament yarn, in which air pressure of an air interlacing device, a yarn path, tension of the yarn, an helix angle of the yarn wound around a cheese, intervals between first guides, located before and after the air interlacing device, and second guides, located in the air interlacing device, and a position of a wave plate are properly controlled.
REFERENCES:
patent: 3701248 (1972-10-01), Gray
patent: 5518814 (1996-05-01), Boenigk
patent: 2002-0048368 (2002-06-01), None
Cho Dae-hwan
Shim Dong-seok
Befumo Jenna
Hyosung Corporation
Striker Michael J.
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