JET DYEING MACHINE Prepared By : Mazadul Hasan sheshir ID: 2010000400008 13th Batch (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 Prepared By : ©right 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. INTRODUCTION 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. 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. 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. 2. It is primarily used for fabrics prone to felting. 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. Jet Dyeing Machine 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 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. DYEING 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. MACHINERY PROCESS • 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. SPECIAL FEATURES AND APPLICATION [...]... jet area Some Jet dye machines are as follows: • Overflow Dyeing Machine • Soft-flow Dyeing Machine • Airflow Dyeing Machine Types of Jet dyeing m/c 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... 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. .. Main Pump Dosing tank Jet dyeing machine Horizontal 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 ) Fabric Speed (m/min) Heating Exchanging Area ( ) Main Pump Power (KW ) 14 0 0.40Mpa 60-300 5 14.7 H.T.H.P RAPID JET DYEING MACHINE - Consist of:... 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 LIMITATIONS OF JET DYEING MACHINE • High initial investment and maintenance cost • Limited accessibility during the dyeing process... Main Parts of Dyeing Machine: 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 Knit Fabrics Dye Liquor Entry path Mechanism Of a Nozzle Machine Setup Overflow Dyeing Machine Storage... unloading of the autoclave 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... 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 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... 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 SAMPLE DYEING MACHINE TYPE : JET . 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 In the Jet dyeing machine the reel is. in the jet area. Some Jet dye machines are as follows: • Overflow Dyeing Machine • Soft-flow Dyeing Machine • Airflow Dyeing Machine TYPES OF JET DYEING MACHINE Types of Jet dyeing m/c • Dyeing. Aqueous jet dyeing machines generally employs a driven winch reel along with a jet nozzle. Jet Dyeing Machine Types of Textile Dyeing Machineries: 1. Hank Dyeing Machine 2. Package Dyeing Machine 3.