Monday, February 1, 2010

Gas Singeing Machines

Singeing is a finishing method for smoothing surfaces of fabrics by burning and removing fuzz thereon, and visualizing fabric textures. A gas-singeing machine is normally employed.
The gas-singeing machine is typically equipped with four burners, and is capable of singeing one or both surfaces of the fabrics. A water-cooled roller is provided at a location opposite to the burners, thereby enabling singeing to be performed without undermining the strength of even thin fabrics. It is important to set a drain temperature of the water-cooled roller in a range of 50 to 550C. Cautions are required because a dew-point is generated when the water-cooled roller is cooled down too much, and results in increased amount of remaining fuzz or adhered carbon. The fabric feed speed is preferably set at around 100 to 150m/minute.
                                                       







Swastika Gas Singeing Machine
Textile Wet Processes: Preparation of Fibers and Fabrics
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Rotary Cylinder Singeing Machines

In this type of singeing machine, the cloth passes over and in contact with a heated rotary cylinder made of copper or cast iron. The rotary cylinder has internal firing and revolves slowly so that constantly a fresh surface of the roller comes in contact with the cloth. The direction of rotation of the cylinder is opposite to the direction of the fabric so that the protruding fibres or nap of the fabric is raised.
This type of machine is particularly suitable for the singeing of velvets and other pile fabrics.
If the singeing of both sides of the fabric is required, then two cylinder are employed, one for each side of the fabric.
Singeing of Knitted Goods
Because knitted fabrics are very sensitive to tension , it is therefore necessary to take special care in singeing. Important control factors in knit singeing are
  • Appropriate Singeing temperature for the particular fiber compositon.
  • Tension control at fabric entry, fabric run and fabric delivery.
  • The machines should have tension controls throughout the fabric passage. 
Gas Singeing Process and machines
Singeing Fundamentals
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Plate Singeing Machines

Plate Singeing Machine

In this type of singeing machine, the cloth passes over and in contact with one or two heated curved copper plates. The thickness of the plates ranges from 1 to 2 inches. The heating of the plates is done by a suitable burning arrangement of gas mixed with air. The plates are heated to bright redness and the cloth passes over and in contact with these plates at a speed ranging from 150 to 250 yards per minute.
The passage of the cloth can be arranged in such a manner that one or both sides of the fabric may pass over and in contact with the heated plate(s), in order to accomplish singeing of one or both sides of the fabric in a single passage.
In order to avoid local cooling of a certain part of the plate(s) by constant passage of cloth over it, an automatic traversing mechanism is fitted to the machine. This mechanism brings the cloth into contact with a constantly changing part of the plate(s), not only to avoid local cooling but also local wearing of the plate(s).

 
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Textile wet processing :- E Learning

 Introduction to textile Wet Processing
 Click Here
Textile Preparation
          1) Plate Singeing Machine.
          2) Rotary Singing Machine.
          3) Gas Singeing Machine.
Dyeing
  1. Dyeing Methods
  • Fiber Dyeing
  • Yarn Dyeing
  • Piece Dyeing
  • Rope Dyeing
  • Open width Dyeing
  • Garment Dyeing


2. Dye Classes
Quality Control and Color Measurement
 3. Dyeing machines
      HTHP Package dyeing machines
Hank Dyeing Machines
Rope Dyeing Machines
Open Width Dyeing Machines
Garment Dyeing Machines
Printing of Textile Materials
      Printing Process
  • Preparation of print paste
  • Printing of fabric
  • Drying
  • Fixation of dyestuff
  • Washing – off
Printing Methods
  • Flat Bed Screen Printing
  • Rotary Screen Printing
  • Heat Transfer Printing
  • Digital Inkjet Printing
  • Resist Printing
  • Discharge Printing
  • Flock Printing
  • Other Printing Methods
  • A Handbook of Garment Dyeing and Cleaning

Finishing is the final series of operations that produces finished textile fabric from greige goods. Finishing operations are predominantly wet operations requiring large amounts of thermal energy for water heating and drying.
Chemical Finishing
  • Optical Finishes
  • Resin Finish
  • Absorbent and Soil Release
  • Softening and abrasion Resistance finishes
  • Water repellent
  • Oil repellent
  • Flame retarding
  • Bio Finishing
  • Anti Microbial Finishing
  • Stiffening and weighing
  • Laminating
  • Plasma treatments
  • Anti mildew Treatment
  • Enzyme Treatments
Mechanical Finishing
  • Heat Setting
  • Raising
  • Shearing
  • Calendering
  • Decating
  • Sanforising
  • Compacting
  • Brushing and Napping
  • Embossing
  • Sueding
Energy Management In Textile Wet Processing
Environmental Management System in Textile Wet Processing
Water and Waste Water in Textiel Wet processing
Health and Safety In Textile Wet Processing
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