Apparel Online Bangladesh Magazine December Issue 2018 | Page 48

APPAREL RESOURCES NEWSLETTERS FACEBOOK FRIENDS To subscribe, send us an email at [email protected] Join more than 10,000 people who are already fans of Apparel CMYK Resources on facebook. Search for Apparel Resources at https://www.facebook.com/apparelresources/ Assembly Assembly has the longest and maximum number of operational steps, minimum 7 to maximum 18. Even average operation work content is higher than part preparation; some operations show variation of timings and some do not. The operations like sew side and under sleeve, show variation in timings while done in two steps using single needle lockstitch, but when feed-off-the- arm machine is used, the variation is negligible. Cuff and sleeve attachment shows reasonable amount of variation among companies. Variation of work content between factories for similar operations is due to use of different machines, work aids, methods, different workstation layout and lastly, a variable work atmosphere. A moderately strong positive correlation (0.56) was found between average work content and standard deviation of work contents, which suggests that longer duration operations are prone to methods change Graphical presentation of SAM values for front assembly Table A Variation of work content between factories for similar operations is due to the use of different machines, work aids, methods, and different workstation layout, and lastly, a variable work atmosphere. A moderately strong positive correlation (0.56) was found between average work content and standard deviation of work contents, which suggests that longer duration of operations are prone to change of methods. Methods 1 2 4 SAM SAM SAM SAM Run-stitch collar 0.65 0.75 0.64 0.55 0.50 Edge Trim 0.24 Collar turn 0.27 Collar iron 0.30 Collar top-stitch 0.4 0.60 0.50 1.29 2.20 1.91 When we look at the overall selected operatiosn performance, such as personal picture we can see that in case found that the 7 op problems, physical ailments, can be combined to of collar preparation or fatigue. using advanced tech company-1 has the maximum Another observation was the work cont While SAM value interesting and company-4 has in the adv that least. work Similarly content company-6 for non-sewing decreases and the level, the production helping operations or cycle takes minimum amount of sewing time for cuff are preparation and operations consistent among increases. To utilise machinery effectivel company-1 maximum. companies the (even across countries). need to upscale pro From data base of the are listed Some the of these operations Accordingly, Return company, in Table it B. is clear that to Investment for all 4 reduce the SAM value, i.e., to The source of differences in operations were cal increase production, methods originates from either (Table C). advancement of technology multiple components involved, Table B Operations Standard Components Sewing Cycle: Deviation involved No. of bursts of SAM Mark Front for Pkt Position 0.007 Two Nil Trim Collar Bottom 0.015 One Nil Buttonsew Collar 0.019 One One Fuse Front Placket 0.028 One Nil Top-stitch Cuff 0.029 One Three Buttonhole Collar 0.033 One One Button Sew 0.038 One One Trim Bottom 0.042 One Nil Fuse Interlining on Upper Cuff 0.042 Two Nil Make Centre Box Pleat 0.053 One Two Table C Basic Level of Technology Advanced Level of Technology SAM ROI (1st Year) SAM ROI (1st Year) Collar run-stitch 0.75 118.72% 0.36 232.01% Collar edge trim, turn and iron 0.85 15.22% 0.24 113.41% Top sleeve placket preparation 2.35 25.98% 0.40 98.73% Sew pocket on left front 1.0 105.53% 0.12 98.22% 22 StitchWorld  AUGUST 2007 48 Apparel Online Bangladesh | December 2018 | www.apparelresources.com plays the most important role. It is clear that in col multiple burst sewing cycle, or Technologically advanced stitch, collar trim-tur multiple number steps (elements) top sleeve placket machines reduce the variables in the operation. that affect human Interestingly, all preparation and sew reasons of variations performance, such as are less or under sleeve operat missing problems, in these operations personal physical and advanced technolog thus there consistency in time generates quicker p ailments, or is fatigue. (negligible variation). than the basic optio Another interesting observation was that work & ROI Interestingly, in pock Technology Level attachment operatio content for non-sewing and While deciding on or advanced level results of show margin helping operations cycle better payback in ba technology for selected sewing operations are operations, it technology level itse was found that the 7 operations can consistent among companies price of technologic be combined to four using (even across countries). Some advanced advanced machine i technology. While the of these operations are work content very decreases in B. the advanced level, comparatively the listed in Table this machine gives c production increases. The source of also differences in To utilise quality work which advanced machinery effectively, methods originates from desired for manufac we need to upscale production. either multiple components shirt as pocket attac Accordingly, Return involved, multiple burst On Investment critical operation. (ROI) for all or 4 operations sewing cycle, multiple were While considering c calculated (Table C). in the number steps (elements) sewing line modern operation. It is clear Interestingly, that in collar all run-stitch, is observed that SAM reasons of variations are less collar trim-turn & iron, top sleeve of 31 minutes can b or missing in these operations placket preparation and sew side to 26.02 minutes by and thus sleeve there is operations, consistency the & under advanced machinery in time (negligible variation). advanced technology level generates above four operatio quicker payback than the basic Manufacturing 4,000 Technology Level option. Interestingly, in pocket per shift of 8 hours & ROI attachment operations, results Rs 1.20 cr of investm While on better advanced show deciding marginally payback basic in sewing techno Rs 1.37 cr in advanc