Bleach wash Recipe with Flowchart and Washing Process

Md Mahedi Hasan

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Bleach wash is used to achieve a faded or old look effect in denim.

Recipe:

Desizing            
M : L = 1 : 5 
Desizing agent = 3 g / L
Temp. = 60ºc
Time = 20 min
Bleaching          
M : L = 1 :5
Caustic soda = 2 % ( PH 10 -11)
H2O2 = 5ml/ L
Soda ash = 2 %
Stabilizer = 2.5ml/L
Temp = 80 º c
Time = 70mn
Neutralizing         
Acetic acid = 2ml/L
Temp = room
Time =5 min
Softening         
Softener = 0.1 – 0.5% o.w.m.
Temp = Room
Time = 5 – 10 min
Bleach wash Recipe
Bleach wash in denim

The processing step of bleach wash are as:

1. Washing

Water and garment load
⬇️
Add desizing agent
⬇️
Rise temp for 60o and continue to wash for 20 min.
⬇️
Drop liquor.

2. Bleaching:

Add water
⬇️
Bleaching chemical
⬇️
raise temp. for 800c and continue for 70 min.
⬇️
Drop the liquor.

3. Neutralizing:

Add water
⬇️
acetic acid
⬇️
continue to wash for 5 min.

4. Softening:

Add water,
⬇️
softener, wash for 5 – 10 mins.
⬇️
Drop liquor and unload garments

5. Hydro extracting

6. Drying

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