Method of dyeing artificial hairs

Abstract

Disclosed is a method of dyeing artificial hairs. The method includes increasing a temperature of a first dye mixture solution, primarily dyeing a bundle of artificial hairs after introducing the artificial hairs into a body, cleaning the body after drying the primarily-dyed artificial hairs, and moving up the artificial hairs while draining the first dye mixture solution, increasing a temperature of a second dye mixture solution composed by water and a dye representing another color by a hot water supply, and dyeing secondarily the artificial hairs by reversing the primarily-dyed artificial hairs, and slowly supplying a dye to the body to gradually increase the concentration of the second dye mixture solution. The artificial hairs are gradient-dyed in two colors or three colors to be dyed in various colors required by consumers. The time spent for a dyeing work is short, so the artificial hairs are dyed for a short time.

What is claimed is: 
     
         1 . A method of dyeing an artificial hair, the method comprising:
 (a) increasing a temperature of a first dye mixture solution obtained by mixing water with a dye representing a first color by using a body, to which a drain pipe to drain the water stored by supply through a water pipe is fixed, a plurality of dye vessels to supply the dye to the body, and a hot water supply to supply hot water to the body while circulating the hot water;   (b) primarily dyeing a bundle of artificial hairs while gradually moving up a height adjusting unit after introducing the artificial hairs into the body by the height adjusting unit;   (c) moving up the artificial hairs, which are primarily dyed, drying the artificial hairs for a predetermined time, draining the first dye mixture solution from the body to the drain pipe, and cleaning the body;   (d) increasing a temperature of a second dye mixture solution, which is obtained by supplying a dye representing a second color different from the first color and stored in the dye vessels to water in the body and mixing the water with the dye, by the hot water supply; and   (e) reversing a position of the artificial hairs, which are primarily dyed, after increasing the temperature of the second dye mixture solution, which is obtained by supplying the water and the dye to the body, by the hot water supply, introducing the artificial hairs into the body by the height adjusting unit, and slowly supplying the dye to the body to gradually increase concentration of the second dye mixture solution while slowly moving up the artificial hairs by the height adjusting unit such that the artificial hairs are secondarily dyed at gradually-increased dye concentration.   
     
     
         2 . The method of  claim 1 , further comprising:
 (f) increasing a temperature of a third dye mixture solution, which is obtained by supplying a dye representing a third color equal to or different from the first and second colors and stored in the dye vessels to water in the body and mixing the water with the dye, by the hot water supply; and   (g) introducing the artificial hairs, which are secondarily dyed, by the height adjusting unit after increasing the temperature of the third dye mixture solution, which is obtained by supplying the water and the dye to the body, by the hot water supply, and slowly supplying the dye to the body to gradually increase concentration of the third dye mixture solution while slowly moving up the artificial hairs by the height adjusting unit such that the artificial hairs are tertiarily dyed at gradually-increased dye concentration, after performing step (c) after step (e).   
     
     
         3 . The method of  claim 1 , wherein the dye includes a cationic dye or a disperse dye. 
     
     
         4 . The method of  claim 2 , wherein the dye includes a cationic dye or a disperse dye. 
     
     
         5 . The method of  claim 3 , wherein the dye includes 0.07% by weight to 1.1% by weight of an accelerating dye agent and 0.07% by weight to 4% by weight of solvent. 
     
     
         6 . The method of  claim 4 , wherein the dye includes 0.07% by weight to 1.1% by weight of an accelerating dye agent and 0.07% by weight to 4% by weight of solvent.