ACID WASH
PROCESS
A
processor Acid wash of 60 kg batch of Denim Trouser as mentioned below:-
First Step: -
Pretreatment/Desizing.
•Add water
@ L : R = 1 : 10 .............. 600 litres.
•Start
Machine.
•Add
desizingagent @ 1 gm/litre
.................600 Gms.
•Add
detergent @ 1 gm/litre
........................ 600 Gms.
•Temperature............................. 60°c.
•Time........................... 20 mts.
•Drop the
liquor.
•Rinse one
for 3 minutes (cold).
Second Step :- Hot wash
•Add water
@ L: R = 1: 10.............. 600 litres.
•Temperature............................. 60°c.
•Time........................... 5 mts.
•Drop the
liquor.
•Here hot
wash is used to remove the adhering materials from the garment surface.
•Unload
the garments from the washing m/c in the trolley.
•Load the
pre treated garments in the dryer m/c.
•Dry the garment completely & unload
the garments.
The pumic stones used for acid wash need to
pre-treat in the following chemical solution:-
•Water
..................... 100 L
•Potassium
per manganate.............. 1000 Gms.
•Phosphoric
Acid............................... 250 Gms.
•Stire the
solution in a stainless steel tub with dry pumic stone.
•Soak the
stones with the chemical solution ......... 10
15
minutes.
•The
stones will pick up the solution. Then the soaked stones are dried in the open
air
for..............
2 to 3 hrs.
•Then
pre-treated garment 30
40 kg per
batch load in the dry washing machine.
•Load the
per-treated stones (about 50 kg) in washing machine.
•Start
machine running for each batch ........................ 7 to 10 mts.
•Stop
machine running.
•Unload
the treated garment separately. Pumic stones with P.P. solution hit on garment
surface as a result fadding will be developed.
•Then load
the stones treated garment in another washing machine.
Third Step :- Wash for cleaning
•Batch
wt................................ 70 kg.
•Add water
@ L: R = 1: 8.............. 560 litres.
•Add
detergent @ 1 gm/litre .............560 Gms.
•Temperature.............................
40°c - 50°c.
•Time
..................................10 mts.
•Drop the
liquor.
•Here
detergent is used to remove the breaking stone dust and chemicals from the
garmentsurface.
Fourth Step :-Whitening/Neutralization.
•Add water
@ L: R = 1: 8.............. 560 litres.
•Machine
running.
•Add
Metabisulphite @ 5 gm/litre..... 2800 Gms.
•Cold
temperature.
•Time 5
mts.
•Drop the
liquor.
কোন মন্তব্য নেই:
একটি মন্তব্য পোস্ট করুন