Shewhart control chart for individual measurement: an application in a weaving mill

Biswas, Raaj Kishore and Masud, Mohammad Shahed and Kabir, Enamul (2015) Shewhart control chart for individual measurement: an application in a weaving mill. In: Melbourne International Business and Social Science Research Conference 2015, 2-4 Oct 2015, Melbourne, Australia.

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Abstract

Control Chart is a very common quality control tool in Industrial sector. Statistical quality control technique is used to determine the control limits and for exploring the changes that require improving the process. In real life there are many situations where the sample size used for process monitoring is one and then control chart for individual measurement is used. The data collected from a weaving mill provided six months of data on four characteristics for each bale of thread namely Fiber Fineness (Mic), Whiteness (Rd), Yellowness (+b) and Spinning consistency index (SCI). Moving Range Chart and Individual Measurement Chart has been applied on each of the characteristics to find out quality of bales of thread on those months and to determine a standard range for each parameter. After evaluating around 70 quality control charts the suggested range for Fiber Fineness, Whiteness, Yellowness and Spinning Consistency index should be 3.162075 to 4.396583, 75.08009 to 81.50754, 6.953162 to 9.434838 and 116.4203 to 185.8005 respectively. Garments industry is the largest export industry for Bangladesh constituting 75% of total export accumulating 10.5% of the country’s GDP but still they lack in terms of quality control. In this paper an overview of quality control process is done on a leading garments industry in Bangladesh, specifically a weaving mill. This also paves a way to use other quality control processes and a chance to compare with these processes to determine a more suitable process for garments industries.


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Item Type: Conference or Workshop Item (Commonwealth Reporting Category E) (Paper)
Refereed: Yes
Item Status: Live Archive
Additional Information: No evidence of copyright restrictions preventing deposit of Accepted version.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 18 Mar 2016 03:18
Last Modified: 16 Jan 2018 04:31
Uncontrolled Keywords: textile, thread quality, fiber fineness, whiteness (Rd), yellowness (+b), spinning consistency index
Fields of Research : 15 Commerce, Management, Tourism and Services > 1503 Business and Management > 150301 Business Information Management (incl. Records, Knowledge and Information Management, and Intelligence)
URI: http://eprints.usq.edu.au/id/eprint/28800

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