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Fabric and garment finishing : Basic washes in denim fabric

 
By  : Noopur Shalini
 

The advantages associated with this process are:

 

-      Color removal is possible without losing strength.

-      This method is very simple and environmentally friendly because after laundering, ozonized water can easily be deozonized by UV radiation.

 

FLAT FINISH

 

It is a special process done to impart fabric with an even wash down effect and very clean surface. Originally liquid ammonia was used, but now use mercerization plus calendering processes to achieve the flat surface.

Mercerization swells up the cotton fibers and allows the calendering to press flat the surface.

They consider this as an imitation process to the use of ammonia, which is toxic and not allowed in commercial use in most countries

 

OVERDYE

 

-      Dyeing over the fabric or jeans to add another tone of color

-      Most often used is a 'yellowy' overdye to create a 'dirty' look

-       Also can be applied with spray gun or paintbrush for local coloring

 

SUNWASHING

 

-      A very light shade by bleaching and stoning

-      Looks as if the sun faded the fabric

 

SUPER DARK STONE

 

-      Commercial term for an extra dark indigo color

-      Results from a double-dyeing technique

 

SNOW WASH DENIM

 

Denim treated with a variation of acid wash that imparts bright white highlights.

 

QUICK WASH DENIM

 

  • Aims at minimizing wash cycle time
  • Results in more economical washes and solving many other washing problems faced by launderes during fashion wash cycles
  • The yarns are ring dyed using indigo giving 25 to 30% less fixed dye to obtain a given shade
  • During wash cycle,indigo dye can be removed quickly,giving washed look

 

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