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Mercerising Machine, Washing Machine, Cold wash chamber, Pad steam machine, Cold Pad Batch (C.P.B), Jigger Machine

                       Mercerising Machine

Mercerising: Mercerising is the process by which the fabric is treated with NaOH solution to cause swelling of fibers. This results in improved lestre, strength and dye affinity. Cotton is mercerized under tension and all alkali must be washed out before the tension is released or shrinkage will take place .Mercerizing can take place directly on grey cloth or after bleaching .

       Section of mercerizing machine:

             1. Coustic Zone
             2. Stabilizings Zone
             3. Washing Zone
             4. Drying Zone


                                           Figure: Mercerising machine


                                             Figure: benniger mercer

                                                    Washing Machine

Washing: Washing is the process to remove the impurities from the cloth. Water and soap are used as washing substance and also pH control.
              Main chamber of machine:

                    1. Cold wash chamber
                    2. Hot wash chamber



                                       Figure: Open-width washing machine

                                                Cold wash chamber

Cold wash chamber: In this chamber the cloth is washed by cold water. It is placed on the two ends of the machine.


                                 Figure: washing machine

                                                  Pad steam machine

Pad steam machine: Pad steam machine is one kind of washing machine. The basic difference from washing machine that pad steam machine contains a steamer. In pad steam the cloth pass through the steamer where the cloth is washed by steam at temperature 95-98°C and color fixation these zone. There are 20 rollers which are called dryer. The dryers are rotate by supplying power from motor by chain, gear and belt. The dryers dry the cloth by supplying steam from steam boiler. The clothes are collected by the quick return mechanism.

                                 Figure: Pad steam machine


               1. To mix the color fixation of the cloth
               2. To wash the cloth
               3. pH control

                                        Cold Pad Batch (C.P.B)

C.P.B or Cold Pad Batch machine is one kind of one color dyeing machine. In C.P.B machine there are spinner roller, steel roller and rubber roller. The spinner roller reduces the folding of cloth and the friction of rubber roller to help the cloth to spin the roller. In C.P.B machine the cloth pass through the roller and below the roller there is a container. The mixture of deices and chemical (NaOH/Urea) by the ratio of 4:1 used to dyeing the cloth. The chemical and deices kept in separated tank and by the help of dozzins pump chemical and deices mixed I 4:1 in a container. From this container using dozzins pump the mixture sprayed on the cloth. By the help of rubber roller the mixture of chemical and deices mixed uniformly on cloth. Finally the cloth is dried by the roller dryer.


                                Figure: Cold Pad Batch Dyeing Machine


                                      Figure:  Cold Pad Batch Machine


                          It is used for dyeing (one color) cloth


                                                    Jigger Machine

Jigger machine: Jigger is a multipurpose machine used for dyeing, scouring, bleaching etc. This machine is used for small purpose generally used for processing sample/short quality dyeing.


                                    Figure:  Jigger Machine

                   Main parts of machine:

                       1. Hydraulic motor
                       2. Heat exchanger
                       3. Coil
                       4. Electric motor / Pump


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Boiler: A steam boiler is usually a closed vessel made of steel. Its function is to transfer the heat produced by the combustion of fuel to water and ultimately to generate steam.
Types of boiler:
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                                          Figure: Boiler
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