Liquid retaining synthetic fiber, process for producing the same, and products
AssigneeToray Industries, Inc.
InventorsYutaka Masuda, Yoshiteru Kiyomura, Koichi Nishizakura
Life of this patent
Estimating the term…
Abstract
This invention relates to a liquid-retaining synthetic fiber having a substantially pointed free end and including a tapered portion having an acute ridgeline on its surface. It is prepared from a synthetic fiber having in section at least one concave portion and at least one convex portion which gradually taper off toward the outside from the center. These fibers are suitable for use in brushes, or for the manufacture of knitted or woven fabrics or flocked fabrics having an animal hair-like or fur-like touch or appearance.
Claims15
A tapered synthetic fiber comprising an elongated body portion, a tapered portion terminating in a single point at its free end, said tapered portion having an acute ridgeline formed with neighboring arcuate concave grooves extending lengthwise along its tapered portion, said pointed free end having a diameter of less than about 15% of the diameter of the body portion.
A brush which comprises a plurality of tapered synthetic fibers, said tapered fiber comprising an elongated body portion, a tapered portion and a pointed free end, said tapered portion having an acute ridgeline formed with neighboring arcuate concave grooves extending lengthwise thereon, said pointed free end having a diameter of less than about 15% of the diameter of the body portion.
A fabric which has naps of tapered synthetic fibers, said tapered fiber comprising an elongated body portion, a tapered portion and a pointed free end, said tapered portion having an acute ridgeline formed with neighboring arcuate concave grooves extending lengthwise on its tapered portion, said pointed free end having a diameter of less than about 15% of the diameter of the body portion.
A process for preparation of animal hair-like tapered synthetic fibers comprising forming polyester fibers into a bundle-like assembly and treating the fibers of the assembly with an alkali solution to produce fibers having a tapered free end, characterized in that said polyester fiber has in section at least one concave portion and at least one convex portion, whereby said tapered portion has an acute ridgeline formed with neighboring arcuate concave grooves extending lengthwise on its tapered portion, said convex portion when viewed in section gradually tapering off toward the outside from the center.
A tapered synthetic fiber in the form of a monofilament having an elongated body portion and a tapered end portion terminating in a single point at its free end, means forming at least one acute ridgeline extending along the tapered portion, forming adjacent concave and convex portions in said tapered portion forming longitudinally extending capillary grooves for absorbtion of liquid along the length of said tapered portion, said grooves extending substantially to said single point at said free end.
Dependencies are inferred from the claim text.