Knit Dyeing Machines

KNIT DYEING MACHINES

Types of Textile Dyeing Machineries:

1. Hank Dyeing Machine

2. Package Dyeing Machine

3. Beam Dyeing Machine

4. Jet Dyeing Machine

5. Jig Dyeing Machine

6. Paddle Dyeing Machine

7. Winch Dyeing Machine

8. Sample Dyeing Machine

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.

Winch Dyeing Machine

ECO 38 ATMOSPHERIC DYEING MACHINE

Temperature : 100

Winch Dyeing Machine

Winch MachineThe 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

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

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.

Advantages of Winch Dyeing:

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.

Disadvantages of Winch Dyeing:

•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]

General Parameters of Dyeing machines:

1. Main Vessel or Chamber2. Winch roller or Reel3. Heat Exchanger4. Nozzle5. Reserve Tank6. Chemical dosing tank7. Utility lines i.e. water line, drain line, steam inlet etc.8. Controlling unit or Processor9. Fabric Plaiter10. Different types of motors & Valves

Main Parts of Dyeing Machine:

Main Pump

CHEMBER OF DYE BATH

Heat Exchanger

Storage Tank

Control Panel

Main PumpDosing Pump

Steam valve Nozzle

BACK VIEW OF A DYEING MACHINE

Dosing Pump

PT TANK

Bath

Main Pump

Heat Exchanger

Drain

Dosing Line

Nozzle

Steam valve

FRONT VIEW OF A DYEING MACHINE

LIQUOR CIRCULATION PATH- MOTOR , VALVE ,HE, RESERVE TANK

Main Pump

Heat Exchanger

Lint Filter

Doing Tank

Pneumatic Valve

Unload Motor

Drain Line

Water Label

Nozzle AirFlow

Dosing Pump

Dye Bath Chamber

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

MACHINE SPECITATION

FLOW DIAGRAM

TYPE : JET

SAMPLE DYEING MACHINE

Jumboflow Knit Dyeing Machine

Capacity : 2 Ton8 Nozzle

LARGE VOLUME MACHINE

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.

Soft Flow Dyeing Machine

LODING FABRIC ON THE MACHINE

RUNNING MACHINE

UNLODING FABRIC ON THE MACHINE

AUTO DOSING SYSTEM FOR KNIT DYEING MACHINE

Machine Setup

Dyeing Floor

Popular Dyeing

Machine

Knit Dyeing Machines

Education

Transcript of Knit Dyeing Machines