Silk yarn dyeing is an essential labor-intensive preparatory operation in the handloom silk weaving industry. The process is majorly done manually. A dyeing machine exclusively for silk hank dyeing has been designed. In this work, the dyeing units in western parts of Tamil Nadu, along the banks of Bhavani river have been observed to study the impact of the silk dyeing process on the health of the dyers and the improvement in the health after utilization of the dyeing machine. Health survey was done using modified Nordic questionnaire to identify the musculoskeletal disorders in various parts of the body during dyeing process and it was observed that the dyers experienced severe pain in shoulder, arms, and back leading to fatigue and general body weakness. The working posture during silk hank processing was analyzed using Ovako Working Posture Analysis system (OWAS) and Rapid Upper Limb Assessment (RULA) system. According to results of OWAS, the silk dyeing process was classified under Action Codes 2 and 3 while in RULA system, the postures were classified under Action Level 4. The utilization of dyeing machine was found to reduce the musculoskeletal disorder due to improvement in posture and reduction of manual work.

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Participatory Ergonomics for Mitigation of Musculoskeletal Disorders Among Silk Hank Dyers in Western Parts of Tamil Nadu, India

  • R. Sukanya Devi,
  • A. Geethakarthi,
  • Vaishnavi Muralidharan

摘要

Silk yarn dyeing is an essential labor-intensive preparatory operation in the handloom silk weaving industry. The process is majorly done manually. A dyeing machine exclusively for silk hank dyeing has been designed. In this work, the dyeing units in western parts of Tamil Nadu, along the banks of Bhavani river have been observed to study the impact of the silk dyeing process on the health of the dyers and the improvement in the health after utilization of the dyeing machine. Health survey was done using modified Nordic questionnaire to identify the musculoskeletal disorders in various parts of the body during dyeing process and it was observed that the dyers experienced severe pain in shoulder, arms, and back leading to fatigue and general body weakness. The working posture during silk hank processing was analyzed using Ovako Working Posture Analysis system (OWAS) and Rapid Upper Limb Assessment (RULA) system. According to results of OWAS, the silk dyeing process was classified under Action Codes 2 and 3 while in RULA system, the postures were classified under Action Level 4. The utilization of dyeing machine was found to reduce the musculoskeletal disorder due to improvement in posture and reduction of manual work.