Composite fiber and textile

Abstract

A composite fiber is provided, which includes a polymer fiber, doped zinc oxide particles dispersed in the polymer fiber or combined with the polymer fiber, and a fluorescent dye combined with the polymer fiber. The light emission wavelength of the doped zinc oxide particles and the light absorption wavelength of the fluorescent dye overlap. The above composite fiber can be manufactured as a yarn and woven into a textile.

What is claimed is: 
     
         1 . A composite fiber, comprising:
 a polymer fiber,   a plurality of doped zinc oxide particles dispersed in the polymer fiber or combined with the polymer fiber; and   a fluorescent dye combined with the polymer fiber,   wherein the light emission wavelength of the doped zinc oxide particles and the light absorption wavelength of the fluorescent dye overlap.   
     
     
         2 . The composite fiber as claimed in  claim 1 , wherein the polymer fiber comprises polyester fiber, polyacrylonitrile fiber, polyacrylate fiber, cellulose fiber, polyethylene fiber, polypropylene fiber, polyamide fiber, polyurethane fiber, cellulose acetate fiber, animal fiber, or a combination thereof. 
     
     
         3 . The composite fiber as claimed in  claim 1 , wherein the doped zinc oxide particles are doped with aluminum, gallium, tin, or a combination thereof, and (a) weight of aluminum, gallium, tin, or a combination thereof and (b) total weight of zinc and aluminum, gallium, tin, or a combination thereof have a ratio of 0.1:100 to 20:100. 
     
     
         4 . The composite fiber as claimed in  claim 1 , wherein the doped zinc oxide particles and the composite fiber have a weight ratio of 0.1:99.9 to 20:80. 
     
     
         5 . The composite fiber as claimed in  claim 1 , further comprising a plurality of titanium oxide particles dispersed in the polymer fiber or combined with the polymer fiber, and the total weight of the titanium oxide particles and the doped zinc oxide particles and the weight of the composite fiber have a ratio of 0.1:99.9 to 20:80. 
     
     
         6 . The composite fiber as claimed in  claim 1 , wherein the fluorescent dye has a light absorption wavelength of 180 nm to 600 nm, and the doped zinc oxide particles have a light emission wavelength of 400 nm to 780 nm. 
     
     
         7 . A textile, comprising:
 a composite fiber, including:
 a first polymer fiber, 
 a plurality of doped zinc oxide particles dispersed in the first polymer fiber or combined with the first polymer fiber; and 
 a fluorescent dye combined with the first polymer fiber, 
 wherein the light emission wavelength of the doped zinc oxide particles and the light absorption wavelength of the fluorescent dye overlap. 
   
     
     
         8 . The textile as claimed in  claim 7 , further comprising a second polymer fiber. 
     
     
         9 . The textile as claimed in  claim 8 , wherein the first polymer fiber is different from the second polymer fiber. 
     
     
         10 . A textile, comprising:
 a first polymer fiber and a second polymer fiber;   a plurality of doped zinc oxide particles dispersed in the first polymer fiber or combined with the first polymer fiber; and   a fluorescent dye combined with the second polymer fiber,   wherein the light emission wavelength of the doped zinc oxide particles and the light absorption wavelength of the fluorescent dye overlap.   
     
     
         11 . The textile as claimed in  claim 10 , wherein the first polymer fiber is different from the second polymer fiber.