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








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