Eco-friendly decolorization method of jeans

Abstract

Provided is an eco-friendly decolorization method of jeans including: a fabric input step of putting denim fabric into a decolorizing device; an ozone gas injecting step of injecting ozone gas into the decolorizing device in which denim fabric is put; and a purified water spraying step of spraying purified water to the denim fabric through a sprayer disposed in the decolorizing device filled with ozone gas through the ozone gas injecting step. The eco-friendly decolorization method of jeans can decolorize naturally and uniformly, and remarkably reduce generation of wastewater by using ozone and water, thereby providing an eco-friendly effect.

What is claimed is: 
     
         1 . An eco-friendly decolorization method of jeans comprising:
 a fabric input step of putting denim fabric into a decolorizing device;   an ozone gas injecting step of injecting ozone gas into the decolorizing device in which denim fabric is put; and   a purified water spraying step of spraying purified water to the denim fabric through a sprayer disposed in the decolorizing device filled with ozone gas through the ozone gas injecting step.   
     
     
         2 . The eco-friendly decolorization method according to  claim 1 , wherein the decolorizing device comprises: a chamber having a sealed inside and a door disposed at the front to be sealably opened and closed; a perforated drum mounted inside the chamber to rotate around a shaft and accommodating articles to be decolorized; first and second water spray nozzles fixed inside the perforated drum and respectively located at right and left sides of the upper portion around the shaft of the perforated drum; an ozone gas inlet connected with an ozone generator to put ozone gas into the chamber; and an outlet for discharging the ozone gas in the chamber to the outside. 
     
     
         3 . The eco-friendly decolorization method according to  claim 1 , wherein in the ozone gas injection step, 400 g to 700 g of ozone per hour is injected. 
     
     
         4 . The eco-friendly decolorization method according to  claim 1 , wherein in the purified water spraying step, 2 L to 3 L of purified water is sprayed to the denim fabric for 3 minutes to 30 minutes through spray nozzles disposed in the decolorizing device filled with ozone gas through the ozone gas injection step. 
     
     
         5 . The eco-friendly decolorization method according to  claim 4 , wherein the purified water is sprayed into a nano-particle size.