Manufacturing Methods for Indigo Fleck Fancy Yarn and Indigo Fleck Fancy Fabric

Abstract

Manufacturing methods for an indigo fleck fancy yarn and for an indigo fleck fancy fabric are provided. The indigo fleck fancy yarn manufacturing method includes providing an original indigo yarn, oxidizing the original indigo yarn, reducing the oxidized indigo yarn, soap washing the reduced indigo yarn, and drying the soap washed indigo yarn to form an indigo fleck fancy yarn. The indigo fleck fancy yarn is an indigo yarn having irregular white area. The indigo fleck fancy fabric manufacturing method includes providing a plurality of indigo fleck fancy yarns made by the above indigo fleck fancy yarn manufacturing method, and using the indigo fleck fancy yarn to make an indigo fleck fancy fabric.

1 . An indigo fleck fancy yarn manufacturing method, includes:
 providing an original indigo yarn;   oxidizing the original indigo yarn;   reducing the oxidized indigo yarn;   soap washing the reduced indigo yarn; and   drying the soap washed indigo yarn to form an indigo fleck fancy yarn, wherein the indigo fleck fancy yarn is an indigo yarn having irregular white area.   
     
     
         2 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the oxidizing step includes using potassium permanganate or sodium hypochlorite as an oxidant. 
     
     
         3 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the oxidizing step includes immersing the original indigo yarn in a 0.3-10.0 wt % oxidant solution at 15-55° C. for 0.5-10 seconds. 
     
     
         4 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the reducing step includes using hydrogen peroxide or oxalic acid as a reductant. 
     
     
         5 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the reducing step includes immersing the oxidized indigo yarn in a 0.5-10.0 wt %, pH 4.0-5.0 oxidant solution at 15-55° C. for 1-30 minutes. 
     
     
         6 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the soap washing step includes using non-ionic surfactant or anion surfactant as a soap washing agent. 
     
     
         7 . The indigo fleck fancy yarn manufacturing method of  claim 1 , wherein the soap washing step includes immersing the reduced indigo yarn in a 0.5-2.0 wt % soap washing agent solution at 50-85° C. for 1-30 minutes. 
     
     
         8 . An indigo fleck fancy fabric manufacturing method, includes:
 providing an indigo fleck fancy yarn made by the following steps:
 providing an original indigo yarn; 
 oxidizing the original indigo yarn; 
 reducing the oxidized indigo yarn; 
 soap washing the reduced indigo yarn; and 
 drying the soap washed indigo yarn to form the indigo fleck fancy yarn, wherein the indigo fleck fancy yarn is an indigo yarn having irregular white area; and 
   using the indigo fleck fancy yarn to make an indigo fleck fancy fabric.   
     
     
         9 . The indigo fleck fancy fabric manufacturing method of  claim 8 , further comprising providing a yarn for weaving into the indigo fleck fancy fabric with the indigo fleck fancy yarn. 
     
     
         10 . The indigo fleck fancy fabric manufacturing method of  claim 8 , wherein the oxidizing step for making the indigo fleck fancy yarn includes immersing the original indigo yarn in a 0.3-10.0 wt % oxidant solution at 15-55° C. for 0.5-10 seconds. 
     
     
         11 . The indigo fleck fancy fabric manufacturing method of  claim 8 , wherein the reducing step for making the indigo fleck fancy yarn includes immersing the oxidized indigo yarn in a 0.5-10.0 wt %, pH 4.0-5.0 oxidant solution at 15-55° C. for 1-30 minutes. 
     
     
         12 . The indigo fleck fancy fabric manufacturing method of  claim 8 , wherein the soap washing step for making the indigo fleck fancy yarn includes immersing the reduced indigo yarn in a 0.5-2.0 wt % soap washing agent solution at 50-85° C. for 1-30 minutes.