basic about singing process in textile processing

1. SINGEING
Hemant yadav
Textile processing

2.  After shearing & cropping process the next process is
singeing.
 Singeing is the process of removal of small hairy
protruding fibre from the surface of fabric by passing it
through hot surface giving it a smooth even and clean
looking face.
 If not done properly unclear print patterns and pilling.

3.  Why singeing is necessary:-
 The small hairy fibre give fuzzy appearance.
 They affect the filling of fibre.
 Small fibre pick more dye.
 Methods of singeing:-
 Plate singeing method
 Roller singeing method
 Gas singeing method

4.  Plate singeing method:-
 It consists of two copper plates heated by furnace or
some other suitable heating arrangement.
 The fabric in open width form passes over and in
contact with hot plates at a speed of 135-225 mts/min.

6.  Advantage:-
 Since there is actual contact between fabric and metal
a certain amount of luster is produced.
 Disadvantage:-
 Fabric end in the interstices of warp & weft are not
removed.
 Plates may not maintain a uniform temp. so uneven
singeing take place.

7.  Roller singeing method:-
 It consists of rotating cylinder instead of stationary
curved plates.
 This cylinder is made up of cast iron or copper
provided with internal firing system.
 A fresh hot surface of cylinder is presented to
oncoming fabric by rotation of cylinder.

9.  Advantage:-
 Surface temp. of cylinder is uniform so result are even.
 Rotation of cylinder is opposite to fabric movement so
singeing more efficient.
 Disadvantage:-
 Fibre ends in the interstices of warp and weft are not
removed.

10.  Gas singeing method:-
 The machine consists of one or more burners giving
continuous flames produced by mixture of
compressed air and coal gas fabric is drawn over the
flame of very high speed and burn protruding fabric
with out any damage to cloth.
 The speed of fabric is adjusted according to amount of
singeing required.

12.  Advantage:-
 The fibre ends presents in the interstices of warp and
weft are also singeing.
 Uniform singeing take place.

13. THANK YOU