Cosmetic textile fiber, method for obtaining it and use thereof

Abstract

The present invention describes a polyamide textile fiber comprising conjugated nanoparticles homogeneously dispersed in the fiber, selected from polyethylene glycol-conjugated platinum nanoparticles, hyaluronic acid-conjugated gold nanoparticles and mixtures thereof. The invention also describes how to obtain it as well as its use in a cosmetic skin treatment as a system for the release of said conjugated nanoparticles.

1 - 5 . (canceled) 
     
     
         6 . A method for preparing the textile fiber of claim  1 , comprising: and the conjugated nanoparticles;
 (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         7 - 9 . (canceled) 
     
     
         10 . A method for preparing the textile fiber of claim  2 , comprising:
 (i) preparing a masterbatch from a part of the total amount of starting polyamide and the conjugated nanoparticles;   (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         11 . A method for preparing the textile fiber of claim  2 , comprising:
 (i) preparing a masterbatch from a part of the total amount of starting polyamide and the conjugated nanoparticles;   (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         12 . A method for preparing the textile fiber of claim  3 , comprising:
 (i) preparing a masterbatch from a part of the total amount of starting polyamide and the conjugated nanoparticles;   (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         13 . A method for preparing the textile fiber of claim  4 , comprising:
 (i) preparing a masterbatch from a part of the total amount of starting polyamide and the conjugated nanoparticles;   (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         14 . A method for preparing the textile fiber of claim  5 , comprising:
 (i) preparing a masterbatch from a part of the total amount of starting polyamide and the conjugated nanoparticles;   (ii) diluting the masterbatch with the rest of the polyamide;   (iii) heating the resulting mass until obtaining a fluid and homogeneous mass; and   (iv) shaping the homogenous mass into strands.   
     
     
         15 - 21 . (canceled)