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Jet dyeing machine

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Jet dyeing machine

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  1. JET DYEING MACHINE JET DYEING MACHINE

  2. Prepared By : Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13thBatch (session 2009-2013) Department : Wet Processing Technology Email: mazadulhasan@yahoo.com Blog : www. Textilelab.blogspot.com (visit) Southeast University Department Of Textile Engineering I/A 251,252 Tejgaon Dhaka Bangladesh ©right

  3. INTRODUCTION INTRODUCTION Jet dye machine is the most modern machine used for dyeing of polyester using disperse dye. It is similar to winch dyeing and fabric is processed in continuous loop. The technique is especially useful for delicate polyester fabrics but depending on the machine almost any weight, structure, or fabric type can be used.

  4. It was found that in using Winch machines, there were some inherent problems. So the Jet dyeing machines when they came up in the 1970's, were specifically designed shortcomings. to overcome those In this machine the dye tank contains disperse dye, dispersing agent, leveling agent and acetic acid. Fabric may be jet dyed by placing it in a heated tube or column where jets of dye solution are forced through it at pressure up to 300 pounds per jet.

  5. Piece Jet Dyeing 1. Dyeing is done in a closed, tube-like system in which the fabric passes through a fast moving stream of pressurized dye liquor. It is primarily used for fabrics prone to felting. 2.

  6. Jet Dyeing Machine 1. It was found that in using Winch machines, there were some inherent problems. So the Jet dyeing machines when they came up in the 1970's, were specifically designed to overcome those shortcomings. 2. In the Jet dyeing machine the reel is completely eliminated. A closed tubular system exists where the fabric is placed. 3. For transporting the fabric through the tube a jet of dye liquor is supplied through a venturi. The Jet creates turbulence. This helps in dye penetration along with preventing the fabric from touching the walls of the tube. 4. As the fabric is often exposed to comparatively higher concentrations of liquor within the transport tube, so little dye bath is needed in the bottom of the vessel. 5. This is just enough for the smooth movement from rear to front. 6. Aqueous jet dyeing machines generally employs a driven winch reel along with a jet nozzle.

  7. 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

  8. DYEING PROCESS In the Jet dyeing machine the reel is completely eliminated. A closed tubular system exists where the fabric is placed. For transporting the fabric through the tube a jet of dye liquor is supplied through a venturi. The Jet creates turbulence. This helps in dye penetration along with preventing the fabric from touching the walls of the tube. As the fabric is often exposed to comparatively higher concentrations of liquor within the transport tube, so little dye bath is needed in the bottom of the vessel. This is just enough for the smooth movement from rear to front. Aqueous jet dyeing machines generally employs a driven winch reel along with a jet nozzle.

  9. MACHINERY PROCESS • The solution is filled in the dye tank and it reaches the heat exchanger where solution can be heated which then pass onto the centrifugal pump and then to the filter chamber. • The solution will be filtered and reaches the tubular chamber. Here the material to dye will be loaded and the winch is rotated so that the material is also rotated. • Again the dye liquor reaches the heat exchanger and operation is repeated for 20-30 minute at 135°C. • Then dye bath is cooled down, after material is taken out.

  10. SPECIAL FEATURES AND APPLICATION • This machine can be operated at high temperature and pressure . • This system operate at low liquor ratio (ratio of mass of dye bath to mass of fabric in dyeing machine) so, this operation consume less water and chemical. • Frequent movement of fabric round the jet through the machine reduces the tendency of crease formations.

  11. LIQUOR CIRCULATION PATH- MOTOR , VALVE ,HE, RESERVE TANK Pneumatic Valve Nozzle AirFlow Heat Exchanger Unload Motor Doing Tank Main Pump Water Label Lint Filter Dye Bath Chamber Drain Line Dosing Pump

  12. TYPES OF JET DYEING MACHINE • After incest fating the dyeing results under different conditions such as development of new fiber blends, different construction fabrics, interaction position of jet, quantity of the dye liquor to be present in around the fabric and the type of impact of the dye liquor on the fabric in the jet area. Some Jet dye machines are as follows: • Overflow Dyeing Machine • Soft-flow Dyeing Machine • Airflow Dyeing Machine

  13. Types of Jet dyeing m/c

  14. ADVANTAGES OF JET DYEING MACHINE • Dyeing time is short compare to beam dyeing • Production is high compare to beam dyeing machine. • Low consumption of water. • Short dyeing time. • Can be easily operated at high temperatures and pressure. • Comparatively low liquor ratios, typically ranges between 1:4 and 1:20. • Fabrics are handled carefully and gently.

  15. DISADVANTAGES OF JET DYEING MACHINE • Cloth is dyed in rope form so there is a risk of entanglement and chance for crease formation. • Equipment and maintenance costs are high, foaming can be a problem, and some fabric may be abraded in the process. • Chance for crease formation.

  16. LIMITATIONS OF JET DYEING MACHINE • High initial investment and maintenance cost. • Limited accessibility during the dyeing process. • Foam forming substance is to be avoided. • Any roughness of the inside surface cause damage to cloth. • In case cloth breakage, re-threading is complicated.

  17. 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

  18. Knit Fabrics Dye Liquor Entry path Mechanism Of a Nozzle

  19. Overflow Dyeing Machine

  20. Storage tank Heat Exchangers fabric Main Pump Dosing tank

  21. Jet dyeing machine Horizontal

  22. Technical Parameters : ITEMS SME-150B Form of the machine Horizontal tubular jet overflow single pipe 1:5---1:8 100-150 Liquor Ratio Max Fabric Capacity (kg ) Max Working Temperature Max Working Pressure (Mpa ) 14 0 0.40Mpa Fabric Speed (m/min) Heating Exchanging Area ( ) Main Pump Power (KW ) 60-300 5 14.7

  23. H.T.H.P. RAPID JET DYEING MACHINE - Consist of: Autoclave: In horizontal and conical construction equipped with a port and cover for the fabric loading in the front. The group and polished reel and separator are located inside the autoclave is pressurised by compressed air. Pressure guage and necessary safety values are provided. Main dia of the autoclave : 600 mm straight part of the autoclave : 7000 mm Flow Tubes: Flow tubes are made of stainless steel and are highly polished and connected to the autoclave. Necessary flow control valves and by pass valves for the fine adjustments of flow quantity are provided. Main liquor circulation pump: For the liquor circulation and fabric movements and efficient centrifugal pump made of stainless steel is provided. The pump is driven by directly coupled to fully enclose two pole induction motor of 20 H.P.

  24. H.T.H.P. RAPID JET DYEING MACHINE - Consist of: Heat Exchanger: Heat exchanger is made from stainless steel. The heat exchanger is of shell and tube type construction and is entirely mode of stainless. The heat exchanger is suitable for raising temperature of the dye liquor from 30'C to 130'C at a steam pressure of 4.0 Kgs./cm2. The heat exchanger is suitable for cooling down the dye liquor from 1.3'C to 8O'C. Reserve Tank: One reserve tank made of stainless steel is provided outside the high pressure circuits for the preparation to dyestuff and chemicals. Miscellaneous : •One filter for the heat exchanger. •One lamp is provided on the top of the autoclave for efficiently illuminating the inside of the autoclave. Draw Reel: One draw reel with necessary drive is provided on the front top of the autoclave near the cover suitable for loading and unloading of the autoclave.

  25. H.T.H.P. RAPID JET DYEING MACHINE - Consist of: Control panel: The following controls are provided. Temperature indicator and automatic temperature controlling instruments. On/of swatches for the operation of pumps and other control. Indicating lamps etc. Pneumatic circuits controls. Nozzle: One No. Jet Nozzle will be supplied with the machine. Scope of supply : One autoclave complete with all the internal pipelines. valves, foundation block and other such parts necessary for normal operation. One control panel as above. One draw reel as above.

  26. TYPE : JET

  27. eco88_start

  28. HI TECH TURBO JET DYEING MACHINE

  29. Soft-flow Dyeing Machine

  30. Soft Flow Dyeing 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.

  31. Steam valve Nozzle Control Panel Heat Exchanger Storage Tank Main Pump Dosing Pump

  32. Dosing Line Heat Exchanger Nozzle Steam valve PT TANK Bath Dosing Pump Drain Main Pump

  33. Jet Dyeing m/c (inside view)

  34. Jet Nozzle

  35. Air-flow Dyeing Machine

  36. Airflow Dyeing Machine This is another development of the very popular jet dyeing machines. The main difference between the Air Flow Machine and Jet Dyeing machine is that the airflow machine utilizes an air jet instead of the water jet for keeping the fabric in circulation. Typically the fabric is allowed to pass into the storage area that has a very small amount of free liquor. This results in a reduction in consumption of water, energy and chemicals. The figure below shows how in an Airflow Machine the bath level is always under the level of the processed textile. Here the fabric does not remain in touch with the liquor (the bath used is below the basket that holds the fabric in circulation). This invariably means that the bath conditions can be altered without having any impact on the process phase of the substrate.

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