FILAMENT FOR ARTIFICIAL HAIR, AND ARTIFICIAL HAIR PRODUCT
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United States of America Patent
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Issued Date -
Oct 20, 2016
app pub date -
Nov 6, 2014
filing date -
Nov 6, 2014
priority date (Note) -
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Abstract
A filament for artificial hair is excellent in terms of volume and luster and not subject to yarn cracking or yarn breakage. The filament is a filament of a thermoplastic resin, its shape of a cross section in a direction perpendicular to a fiber axis is a multilobal shape having three or more interlobe gap regions, widths W2 of the interlobe gap regions are 10 to 60% of a width W1 of the filament, and depths H2 of the interlobe gap regions are 5 to 30% of a height H1 of the filament.
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Family
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