How to dye and procedure of dyeing for textile

SMW Fibre dyeing machine

Machine for Continuous loose cotton fibre dyeing:

Feature:
-When large amount of loose cotton fibre is to be dyed in standared dyeing shade, continuous dyeing may be carried out.
-The output of the machine can be can be as high as 2000lb per hour
-Vat and sulpher dyes are dyed on cotton fibre in SMW dyeing machine.
-The cleaning of the performed drum and the conveyors takes about a weeks time.

Working principle:
-In the machine the dye liquor is kept stationary while the cotton is moved in the liquor

-Cotton fibre are feed in the form of laps, 2 inch thick and 36 inch wide, which are uniformly packed. The lap is passed through a squeeze roller are feed into the machine by conveyor belt.

-The method of circulation of dye liquor through the conveyor and the cotton lap is shown as figure. A perforated cast iron cylinder(A) with closed end plates is made to rotate at the conveyor speed. Its axis is provided by a stationary hollow pipe(B). which is connected to a suction pipe(C). Two conveyors E1 and E2. Both being continuous are made to move contact with each other between two sets of squeezing rollers F1 and F2 with suitable guide rollers G1 and G2. Owing to the cut off (D), the pump only sucks through the lower half of the cylinder.

-There are five units, wetting, dyeing, cold wash, hot wash, drying with this type of cylinder and every unit has a definite liquor.

-Every unit has may has a guide roller, two sets squeezing rollers. Five such unit may be connected in series, with one common conveyer as the lower conveyer and five individual upper conveyor.

-Different options are carried out in this those five units and finally the lap is fed to crightom opener, where the SMW is disintegrated into loose fibre.