Between the lockdown and the Corona crisis, the Indian Railways, which began manufacturing personal protective equipment (PPE) in its various production units, has developed a process of sewing with hot air seam seal tape for high reliability. According to Railway Ministry officials, a new technique has been developed by Parel Workshop of Central Railway, in which the process of sewing PPE coveralls with hot air seam sealing tape has been developed.
In its statement, an official said that this process has enabled higher rates of production as the tape application is fully automated and this has resulted in better seam sealing due to the fusion of the tape with the fabric, which means that Medicos will have a higher reliability in terms of prolonged use.
In addition, the official said that the sample coverall was tested at the Ordnance Factory in Muradnagar and passed for both fabric and seam. The officer also said that these PPE clothes were to be stitched by Jagadhri workshop of Northern Railway. The stitching of PPE was also done in the Parel Workshop, which was seam sealing by manual application of self sealing as per Northern Railway's procedure. During manufacturing, it was observed that manual sealing of the seam is labor-intensive and time consuming. Thus, the aspect related to seam sealing was studied in detail by the Parel workshop and after examining various options, sealing the seam by hot air tape was found to be effective and reliable as compared to self-adhesive tape. It was reported that due to the automated process, it was better for the fabric to adhere to hot air seam seal tape. The Railways had also started manufacturing hand sanitizers, face masks, medical beds, feces and workshops on production units during the lockdown across the country.