US2005249951A1PendingUtilityA1

Functional composite fiber and preparation thereof and spinneret for preparing the same

Assignee: IND TECH RES INSTPriority: Nov 19, 2002Filed: Jul 13, 2005Published: Nov 10, 2005
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-modified
1 - 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.

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