Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1993-06-24
1994-06-21
Ryan, Patrick J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428398, 428 92, 428 97, 428373, 428374, 264171, D02G 300
Patent
active
053227360
ABSTRACT:
This invention relates to a trilobal filament having at least one axially extending void, preferably one axially extending void in each lobe, wherein each lobe has a composite curve profile having a first arm angle .alpha. and a second arm angle .beta., the cross-section has a modification ratio of 2.4 to 5.0, and the total cross-sectional area is 5 to 15 percent void. In a further aspect, this invention is a spinnerette for producing a filament comprising at least one bore group, wherein the bore group has three legs divergent from each other by 130.degree. to 150.degree. and each leg includes two substantially parallel capillary sections and one nipple capillary section which extends to the outermost point of each leg.
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Boyle John B.
Peterson Weldon H.
Allied-Signal Inc.
Edwards N.
Rupert Wayne W.
Ryan Patrick J.
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