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Page 102 - Shawl Weaving Artisan - TP
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    Textile & Handloom                                                               Exercise 1.6.63
           Shawl Weaving Artisan - Wet Processing

           Practice scouring on wool, silk and jute fibers

           Objectives : At the end of this exercise you shall be able to
           •  scouring on wool, silk and jute.

             Requirements
              Tools/equipment’s/Instruments
              •  Gas stove                      - 1 No.         •  Lab thermometer                   - 1 No.
              •  Stainless steel beaker         - 1 No.         •  Glass/metal stirring rods         - 1 No.
             •  Soda ash                        - as reqd.      Materials
             •  Washing and soaping agent       - as reqd.      •  Wool yarn hanks                   - as reqd.

           PROCEDURE

           TASK 1: Scouring on wool

                                                Refer Ex No - 1.6.51 - TASK 1

           TASK 2: Scouring on silk

           1  Take a silk sample and soak it with water.        8  Turn off the gas stove and let the silk sample soak in
                                                                   the solution for 15-30 minutes.
           2  Then pour water into the beaker. (The water should
              be enough so that the entire sample is dipped into it).  9  Now take the sample out of the beaker and wash it

           3  Then place the beaker on gas stove and turn on the   first with cold water to remove all soap and impurities.
              gas.                                              10 Now add acetic acid (1-2%) with water in a beaker
           4  Now add a small amount of mild detergent soap in     and add a silk  sample in it to restore their natural pH
              the water and let the water get a little warm.       balance.
                                                                11 Now repeat the washing process until the water runs
           5  Put the silk fiber in the detergent solution. Make sure
              the sample is fully covered by the solution.         clear.
           6  Keep the temperature low  40 °C to 50 °C during the   12 Gently squeeze  out excess water from the silk
              process, the temperature doesn’t exceed to 60°C .         sample and dry it in a room temperature, avoid direct
                                                                   sunlight.
           7  Continue stir the sample with the help of rods for at
              least 5-10 min.

           TASK 3: Scouring on jute
           1  Take a jute sample and soak it with water.        8  Turn off the gas stove and let the jute sample soak in
                                                                   the solution for 15-30 minutes.
           2  Then pour water into the beaker. (The water should
              be enough so that the entire sample is dipped into it).  9  Now take the sample out of the beaker and wash it
           3  Then place the beaker on gas stove and turn on the   first with cold water to remove all soap and impurities.
              gas.                                              10 Now add acetic acid (1-2%) with water in a beaker
                                                                   and add a jute sample in it to restore their natural pH
           4  Now add a small amount of mild detergent soap in
              the water and let the water get a little warm.       balance.
                                                                11 Now repeat the washing process until the water runs
           5  Put the jute sample in the detergent solution. Make   clear.
              sure the sample is fully covered by the solution.
           6  Keep the temperature low  60°C to 80°C during the   12 Gently squeeze out excess water from the jute
                                                                   sample and dry it in a room temperature, avoid direct
              process.
                                                                   sunlight.
           7  Continue stir the sample with the help of rods for at
              least 10-15 min.

           90

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