A dyeing machine consisting essentially of a dye vessel fitted with a driven winch ( usually above the liquor level) which rotates and draws a length of fabric, normally joined end to end, through the liquor.
Winch dyeing machines are a low cost design that is simple to operate and maintain, yet versatile in application proving invaluable for preparation, washing or after treatments as well as the dyeing stage itself. In all winch dyeing machines a series of fabric ropes of equal length are immersed in the dye bath but part of each rope is taken over two reels or the winch itself. The rope of fabric is circulated through the dye bath being hauled up and over the winch throughout the course of the dyeing operation. Dyestuff and auxiliaries may be dosed manually or automatically in accordance with the recipe method.
Description and Dyeing Method on Winch Dyeing Machine
The dyeing process on winch dyeing machines is based on higher M:L as compared with other dyeing machines. The process is conducted with very little tension . The total dyeing time is lengthier as compared to other machines.Advantages of Winch Dyeing
a. Construction and operation of winch are very simple.
b. The winch dyeing machines are suitable for types of wet processing operations from desizing to softening.
c.The winch dyeing machine is suitable for practically all types of fabrics ,which can withstand creasing in rope form processing.
d. Thr tension exerted on winch is less than jigger,the material thus dyed is with fuller hand.
e. The appearance of the dyed goods is clean and smooth on winch dyeing machines.
Limitations Of Winch Dyeing
a. Batch dyeing operations needs trimming, sewing, opening out the rope , loading and unloading for individual lots separately.
b. Since several lengths of fabric are run over the winch reel into the liquor and sewn end to end,Continuous length processing is not possible in a single batch.
c. Fabric is processed in rope form which may lead to crease marks , particularly in heavy , woven , thin and light synthetics.
d. Most of the machine work under atmospheric conditions.
More Information On Winch Dyeing Clik Here
Winch Dyeing Machines
Fabric dyeing Machines