1. Open width form using the fabrics to spread without any creases
and dye them.
2. Rope form using the fabrics with the
form like a rope.
Dyeing work flow chart:
Scouring
& bleaching
↓
Per
oxide hot with a/acid
↓
Enzymes
wash with a/acid
↓
Leveling
with sequestering
↓
Dyeing
dosing
↓
Salt
dosing
↓
Soda
dosing
↓
Sample
↓
Drain
↓
Washing
off
↓
A/acid
↓
Softener
↓
Unload
Dyeing machine:
Name of the m/c:
Dyeing machine
Brand Name:
Dilmenlar
Manufacturing
Company: Turkey
Year of
Manufacturing: 2004 Machine
capacity: 150 kg
No. of nozzle: 02
Maximum
Temperature: 135°c
Motor: 01
Winch Motor: 01
Pump Motor: 01
The controlled Parameters for dyeing procedure:
pH:
- During H2O2 bleaching Ph: 10.50 – 12
- During neutralization : 6.50 – 7.0
- During Enzyme : 4.50 – 7.0
- During reactive dyeing pH: 9.5 – 11.50
- During Soda dosing : 10.0 – 11.0
- Soaping : 4.50 – 6.0
- During disperse dyeing pH : 4.50 – 5.0
Temperature:
- For cotton scouring : 98°c
- For cotton enzyme : 55°c - 60°c
- For cotton dyeing : 98°c (For hot
brand)
- For salt, Soda : 60°c
- Polyester dyeing : 135°c
- For cotton cold wash : 30°c - 40°c
- For cotton hot wash : 80°c - 90°c
- For cotton acid wash : 50°c - 60°c
- OBA application : 98°c
Time:
- For scouring & bleaching : 60
minute (when temp. 98°c) If 110°c, time 30min.
- For cotton enzyme : 60 minute
- For reactive dyeing : 30 minute
- For disperse dyeing : 30 minute
- For salt dosing : 30 minute
- For soda dosing : 45 – 60 min
M: L ratio:
- For reactive dyeing M: L ratio
maintained between 1: 8
- For disperse dyeing M: L ratio
maintained between 1: 10
The calculated formula followed in production:
01. Color (%) – Required dye (gm)= Total
fabric × Recipe / 100
02. Chemical +
Auxilaries (gm/l) - Required chemical (gm)= Total liquor × chemical(gm/l) /
1000
Working Procedure:
Firstly
the detergent, Anti-creasing agent, Anti-foaming agent and Stabilizer are mixed
in mixing tank, then load to machine at 50°c
↓
The
temperature is risen to 60°c. Now the Caustic Soda is given to bath
↓
The
Hydrogen Peroxide is given at 70°c
↓
Raise
the temperature at 98°c and run for 60 minutes. Here the Ph = 11-12
↓
Rinse the fabric
↓
Hot
wash is done at 80°c × 10 → Drain → Normal wash → Drain
↓
Peroxide
is applied at 60°c and run for 15 minutes → Hot wash
↓
Add Acetic Acid at same temperature and run 10
minutes
↓
pH checked (pH=6.5) → Normal wash
↓
Now Acetic Acid applied at 55°c for pH
control (pH= 4.50) and then Enzyme is given to bath at same temperature with 60
minute
↓
Raise the temperature (Grade rate → 2 C/min)
at 80°c and run 6 minute
↓
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