Fiber having both thermal-insulating and cool-feeling functions, and fabric having both thermal-insulating and cool-feeling functions

Abstract

A fiber having both thermal-insulating and cool-feeling functions and a fabric having both thermal-insulating and cool-feeling functions are provided. The fiber includes a thermal-insulating part and a cool-feeling part encapsulating the thermal-insulating part. A material of the thermal-insulating part includes a first base material and a near infrared reflective material dispersed in the first base material. The near infrared reflective material is selected from the group consisting of iron, cobalt, chromium, copper, nickel, bismuth, and an alloy thereof. A material of the cool-feeling part includes a second base material and a cool feeling material dispersed in the second base material. The cool feeling material is a silicate containing at least one metal selected from the group consisting of calcium, magnesium, sodium, and aluminum. The fabric having both thermal-insulating and cool-feeling functions is woven from the fiber having both thermal-insulating and cool-feeling functions.

What is claimed is: 
     
         1 . A fiber having both thermal-insulating and cool-feeling functions, comprising:
 a thermal-insulating part whose material includes a first base material and a near infrared reflective material dispersed in the first base material, the near infrared reflective material being selected from the group consisting of iron, cobalt, chromium, copper, nickel, bismuth, and an alloy thereof; and   a cool-feeling part encapsulating the thermal-insulating part, a material of the cool-feeling part including a second base material and a cool-feeling material dispersed in the second base material, and the cool-feeling material being a silicate containing at least one metal selected from the group consisting of calcium, magnesium, sodium, and aluminum.   
     
     
         2 . The fiber according to  claim 1 , wherein the thermal-insulating part is in a form of a core, and the cool-feeling part is in a form of a sheath. 
     
     
         3 . The fiber according to  claim 1 , wherein a weight ratio of the thermal-insulating part to the cool-feeling part ranges from 3:7 to 7:3. 
     
     
         4 . The fiber according to  claim 1 , wherein based on a total weight of the thermal-insulating part being 100 wt %, the near infrared reflective material is present in an amount ranging from 0.5 wt % to 5 wt %. 
     
     
         5 . The fiber according to  claim 1 , wherein based on a total weight of the cool-feeling part being 100 wt %, the cool-feeling material is present in an amount ranging from 0.5 wt % to 5 wt %. 
     
     
         6 . The fiber according to  claim 1 , wherein the near infrared reflective material is dispersed in the first base material in a form of nanoparticles, and an average diameter of the near infrared reflective material ranges from 100 nm to 1500 nm. 
     
     
         7 . The fiber according to  claim 1 , wherein the cool-feeling material is dispersed in the second base material in a form of particles, and an average diameter of the cool-feeling material ranges from 100 nm to 1500 nm. 
     
     
         8 . The fiber according to  claim 1 , wherein the first base material is polyethylene terephthalate, polybutylene terephthalate, or a combination thereof, the second base material is polyethylene terephthalate, polybutylene terephthalate, or a combination thereof, and the first base material and the second base material are the same or different. 
     
     
         9 . The fiber according to  claim 1 , wherein a quantity of the thermal-insulating part is plural, and the thermal-insulating parts are encapsulated by the cool-feeling part. 
     
     
         10 . A fabric having both thermal-insulating and cool-feeling functions, which is woven from a fiber having both thermal-insulating and cool-feeling functions, the fiber having both thermal-insulating and cool-feeling functions comprising:
 a thermal-insulating part whose material includes a first base material and a near infrared reflective material dispersed in the first base material, the near infrared reflective material being selected from the group consisting of iron, cobalt, chromium, copper, nickel, bismuth, and an alloy thereof; and   a cool-feeling part encapsulating the thermal-insulating part, a material of the cool-feeling part including a second base material and a cool-feeling material dispersed in the second base material, and the cool-feeling material being a silicate containing at least one metal selected from the group consisting of calcium, magnesium, sodium, and aluminum;   wherein a heat flux of the fabric having both thermal-insulating and cool-feeling functions is higher than or equal to 0.145 W/cm 2 , and a near infrared reflectivity of the fabric having both thermal-insulating and cool-feeling functions is higher than or equal to 58%.