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IEEM 2011 - Comfort Study of Work Environment of Apparel Industry
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IEEM 2011 - Comfort Study of Work Environment of Apparel Industry

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  • 1. Comfort Study of WorkEnvironment of Apparel IndustryPresented By – W. V. R. KosalaAuthors - W. V. R. Kosala, P. P. G. N. Vilasini and J. R. Gamage Dept. of Mechanical Engineering, University of Moratuwa, Sri Lanka.
  • 2. Content• Introduction• Problem Identification• Research Approach• Recommendations• Discussion
  • 3. Introduction• Sri Lankan textile industry – – 40% of the country’s industrial production – 1.2 M people (5.63% of total population)• Competition and rivalry – – Increased number of local factories – Low cost producers
  • 4. Introduction (Cont.)• Where ? – At a leading SL apparel manufacturing factory – Operating 6 days/week – Workforce of 550 people – Daily output of 3500 pieces of ready-made garments• Why ? – Uncomfortable working environment created within the packing division due to relocation
  • 5. Major Issues Identified• Thermal discomfort• Poor lighting conditions• Awkward working postures
  • 6. Research ApproachInvestigation and •Gather information from a data collection walkthrough visit • Survey to identify current health and safety perception • Layout mapping Analysis • Activity sampling - Foot motion Study • Measuring environmental data - Temperature Relative humidityRecommendations Wind speed Light intensity
  • 7. Analysis – Questionnaire feedback
  • 8. Analysis – Foot posture changing frequency 1.95 X Freq. within 1st hour
  • 9. Analysis - Temperature & Relative Humidity
  • 10. Mapping the degree of human comfort
  • 11. Recommendations – Thermal Discomfort• Prevent the heat coming from outside in the form of conduction and radiation such as – – Use tint / blind curtains – Maintain smooth and light colored external walls – Use AL foils to the roof• Improve ventilation by – – Facilitating natural ventilation where ever possible – Well placed exhaust fans – Blowers to ventilate local areas• Introduce proper work roster to avoid any possible heat stresses• Educate the workforce on thermal comfort measures (such as clothing, sweating, etc)
  • 12. Recommendations – Poor lighting• Use sufficient artificial lighting with proper placement• Lighting in visual inspection area should be according to the standards• Light sources should be covered and placed properly to prevent any glare or excess lighting on the work piece• Use automatic light intensity controllers(if possible) to correct the reduction of natural lightingRecommendations - Prolong standing• Provide sufficient rest time with seating• Provide suitable pair of indoor footwear or non slip carpet• Height adjustable workbenches
  • 13. Discussion Less than 32% employees who dissatisfied with working posture Existing temp. is uncomfortable
  • 14. Discussion (Cont.) 59% of Workers’ foot posture changing freq. >Mean foot posture changing freq. Majority of workers suffer from lower limb 98% of the same group strains stated that current working posture is uncomfortable during the questionnaire
  • 15. Discussion (Cont.)• Provides insight to the analysis of matters related to ergonomics• Study was not focusing much on physical parameters of the specimens• Increased sample sizes and data capturing frequencies will increase the accuracy
  • 16. THANK YOU…!!! &Any Questions ???
  • 17. Existing layout of the packing division
  • 18. Foot posture study