US2005249951A1PendingUtilityA1
Functional composite fiber and preparation thereof and spinneret for preparing the same
Est. expiryNov 19, 2022(expired)· nominal 20-yr term from priority
D01F 1/10D01F 8/08D01D 5/30Y10T428/2924D01F 8/12Y10T428/2973D01F 8/06D01D 5/34Y10T428/2913D01F 8/02D01D 5/253Y10T428/2929Y10T428/2931D01F 8/14
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Claims
Abstract
A functional composite fiber and preparation thereof, and a spinneret for preparing the same. The functional composite fiber comprises a plurality of the T-lobes connected with each other at their bases, wherein the caps of the T-lobes contain a component, and their bases T-lobes contain the component and an additive. The additive is not exposed on the surface of the fiber thereby preventing post-manufacturing abrasion of the spinning machine.
Claims
exact text as granted — not AI-modified1 - 11 . (canceled)
12 . A manufacturing method for a functional composite fiber, comprising: producing a functional composite fiber using a spinneret, wherein
the spinneret comprises:
a plurality of rectangular first exits extending outward to form an equilateral polygon, and
a plurality of rectangular second exits radially arranged from the mass center of equilateral polygon to each side of equilateral polygon; and
the functional composite fiber comprises a first component extruded from the first exit and a second component extruded from the second exit.
13 . The manufacturing method as claimed in claim 12 , wherein the adjacent first and second exit form a right angle.
14 . The manufacturing method as claimed in claim 12 , wherein the first exit is longer than the second exit to obtain a porous hollow fiber with polygonal cross-section.
15 . The manufacturing method as claimed in claim 12 , wherein the first exit is shorter than the second exit to obtain a non-hollow fiber with multilateral cross-section.
16 . The manufacturing method as claimed in claim 12 , wherein the equilateral polygon is an equilateral triangle.
17 . The manufacturing method as claimed in claim 12 , wherein the first component comprises polyester, nylon, polyolefin, poly(acrylonitrile) (PAN), or cellulose.
18 . The manufacturing method as claimed in claim 17 , wherein the polyester is polyethylene terephthalate.
19 . The manufacturing method as claimed in claim 18 , wherein the second component comprises the first component and an additive.
20 . The manufacturing method as claimed in claim 19 , wherein the additive comprises anti-UV, far-IR, or anti-bacterial & mildew-retarding agents.Join the waitlist — get patent alerts
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