3. Winch dyeing machines comes with the lucrative options of low cost design,
simplicity in operation and maintenance yet uncompromising features when it
comes to versatility.
Mostly woollen and silk fabrics are dyed by using Winch Dyeing machine. The
dyeing machine derives its name "Winch" as the fabric rope gets circulated in the
machine by way of a mechanical action of a horizontal rotor or reel, called as a
winch or sometimes wince. The cross‐section of the winch rotor may be circular
or elliptical.
The winch dyeing machine has a front compartment, a perforated partition
separates it from the main dyeing chamber. It is this front compartment where
dyestuff and dyeing auxiliary additions are made. Gradually they move to main
dyeing vessel from there. The process works like this first a series of fabric ropes
are immersed in the dye bath. This fabric ropes must be of equal lengths. A part
of each rope is then taken over two reels or over the winch itself. In the
subsequent course of dyeing operation a rope of fabric is circulated through the
dye bath and the winch. The dyestuff and auxiliaries are dosed manually or
automatically according to the recipe method.
5. The development of Winch Dyeing Machine, which is widely appreciated for its
easy operations, application specific design and long lasting service life. This
user‐friendly device is easy to install and has durable finish standards. The body
of the machine is fabricated from premium quality Stainless Steel‐304 grade.
Features:
•
Water inlet and out let valve
•
Direct steam coil made of perforated pipe
•
Machine body made of SS sheets 304 quality
•
Complete nipple with electric motor standard company
•
Big Roller made of SS or pipe and small roller made of SS pipe
6. Working Principle of Winch dyeing machine:
Winch Dyeing machines are most suitable for knit fabric dyeing. Here fabric is
dyed in tubular from where fabric runs in endless circular path. Inside the m/c
the upper part of the fabric runs through a nozzle & the lower part is immersed
into liquor, in the nozzle the liquor is sprayed onto the fabric. The fabric and
liquor both circulated by a high pressure pump. The main pump draws the
liquor from the bottom of the vessel & passed this liquor through the heat
exchanger to the top of vessel into the Nozzle. The winch roller or the reel also
helps running the fabric smoothly. The liquor gets heated or cooled by
exchanging temperature in the heat-exchanger.
Fig: cross-sectional
diagram showing fabric
path & nozzle in the high
pressure winch d/m
7. 1. Construction and operation of winch are very simple.
2. Easy to enter and easy to operate and let out of the fabric of the m/c.
3. Suitable for dyeing of knitted fabric.
4. The appearance of the dyed goods is clean and smooth on winch dyeing
machines.
5. Knitted fabric is not damage due to low tension.
8. 1. Difficult to maintain uniform temperature.
2. Due to high liquor ratio (1:40) product cost is high.
3. Uneven dyeing due to folding.
4. Discontinuous process.
5. More fabric can’t be dyed.
9. •Capacity per nozzle :
theoretically 250 kg but practically not more than 200
kg should be used.
•Nozzle pressure :
4-6 psi
•Steam pressure:
7 bar (inlet of heat exchanger)
•Cold water temp. & pressure :
25 c & 3 bar
•Maximum temp. :
140 for high temp. M/c 100 for atmospheric
•Reel/Winch speed :
150-250 rpm
•Main motor efficiency :
80-85% [Loading Capacity]
10. 1. Main Vessel or Chamber
2. Winch roller or Reel
3. Heat Exchanger
4. Nozzle
5. Reserve Tank
6. Chemical dosing tank
7. Utility lines i.e. water line, drain line, steam inlet etc.
8. Controlling unit or Processor
9. Fabric Plaiter
10. Different types of motors & Valves
Main Pump
15. LIQUOR CIRCULATION PATH- MOTOR , VALVE ,HE, RESERVE
TANK
Pneumatic
Nozzle AirFlow
Valve
Heat Exchanger
Unload Motor
Doing Tank
Main Pump
Water Label
Lint Filter
Dye Bath Chamber
Drain Line
Dosing Pump
16. Brand Name: FONGS
Model: GN 6-SR -6T
Serial No : 26012102
Country Of Origin : Honkong
Machine Type: HP/HT Machine
Capacity: 1200 Kg
Cycle time: 03 min
No of cycle : 12
Main pump speed: 80-150 m/min
Winch speed: 250 m/min
No of Nozzle: O6
No of motor: 08
Power: 415 V 3 @ 50 Hz
Water supply pressure req. : 300 Kpa
Compressed Air pressure required: 700 Kpa
Steam pressure required : 700 Kpa
Design temp. : 140 ° C
25. Soft Flow Dyeing Machine, which ensures even dyeing with low tension and
accurate rinsing system.
Fabricated as per international quality norms, this device is widely appreciated
for hosts of outstanding features like trouble free service life, optimum
functionality and energy efficiency.
