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Page 58 - Shawl Weaving Artisan - TP
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    Textile & Handloom                                                               Exercise 1.4.35
           Shawl Weaving Artisan - Defects and Yarn Quality

           Analyze yarn quality requirement for warp and weft

           Objectives : At the end of this exercise you shall be able to
           •  analyze count, twist and crimp in the fabric
           •  identify various yarn defects and remedial measures
           •  analyze and reduce the cause of end breakages in the loom.

             Requirements

             Tools/Equipment’s/Instruments
              •  Different Fabric sample         - as reqd.       •  Pick glass                       - 1 No.
              •  Yarn sample                     - as reqd.     •  Measuring tape                     - 1 No.

           PROCEDURE

           TASK 1: Calculate fabric count
           1  Take 50cm x 50cm fabric.
                                                                 Fig 2
           2  Mark the warp direction and weft direction by using
              pen.
           3  Take the pick glass and open it as shown in Fig 1

            Fig 1

                                                                5  Observe the threads through the pick glass.
                                                                6  Count  the threads  between  the slots in  the pick
                                                                   glass.

                                                                7  After counting the threads move the counting glass
                                                                   to other place of the fabric and start the counting
           4  Now place the pick glass on the fabric as shown in   process.
              Fig 2.
                                                                8  Likewise take ten readings and find the average.

           TASK 2: Calculate number of picks per inch in the fabric
                                                                                     Table 1
           1  Follow the procedure mentioned in Task 1.

           2  Now calculate the ends per inch and picks per inch.   S.No.  Ends per inch  Picksper  Yarn count
              e.g. EPI X PPI = count of yarn.                                              inch
                                                                   1
           3  Note all the values in the below mentioned Table 1.

           4  Repeat the exercise by using five different fabrics.  2
                                                                   3
                                                                   4

           46

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