Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1996-04-11
1997-11-04
Edwards, Newton
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428397, 428364, D02G 300
Patent
active
056838140
ABSTRACT:
Modified cross-section fibers for artificial hair having an improved bulkiness and a soft feeling as compared with conventional fibers for the artificial hair, comprising synthetic fibers, the synthetic fiber having a cross-section comprising one central connecting portion and projections extended in three directions from the central connecting portions, wherein at least one of the three projections is most narrowed at a portion where it is nearer from a top edge of the projection than 1/2 of a length R from a center of the central connecting portion to the top edge of the projection, a ratio of W1/W2 wherein W1 is a width of the widest portion in a portion where it is nearer from the top edge than the most narrowed portion, and W2 is a width of the most narrowed portion is 1.05 to 2.0, and a ratio of R/W1 wherein R and W1 are the same as defined above is from 1.10 to 5.0.
REFERENCES:
patent: 3238553 (1966-03-01), Bailey et al.
patent: 3746827 (1973-07-01), Martin et al.
patent: 3910291 (1975-10-01), Kim
Cho Kenichiro
Kakita Naohiko
Nakashima Hiroyuki
Nishi Nobuyuki
Nishiura Koichi
Edwards Newton
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
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