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| dc.date.accessioned | 2019-03-26T09:53:06Z | |
| dc.date.available | 2019-03-26T09:53:06Z | |
| dc.date.issued | 2019-03-26 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/9297 | |
| dc.description.abstract | The quality of Bed sheet fabrics can be improved by properly controlling the process parameters during weaving. A 100 % cotton plain woven fabric produced by picanol air jet loom at Bahir Dar Textile Share Company has been studied to examine the process quality parameters. The end breakages were studied in 2 hours for 10 times at five picanol air jet looms based on 1.2, 1.5, 2.0, 2.2 and 2.5 kN warp tension at 500 rpm. End breakages were decreasing up to warp tension 2.0 kN and started to increase beyond 2.0 kN warp tension. The lower end breakage rate was 5.70 at 2.0 kN warp tension. At loom speed of 450, 500, 535, 550 and 600 rpm at 1.8 kN warp tension end breakages were studied. As the loom speed was increasing, the end breakage rates were increasing. An also end breakages were studied based on different loom part at 1.5 kN tension and 600 rpm of speed. The loom has three parts which end breakages were occurred. Based on the results, between weaver beam and drop wires of the loom, the breakage rate was higher due to the frequency of warp crossing. Bed sheet fabric GSM and air permeability were tested under 1.2, 1.5, 2.0, 2.2 and 2.5 kN warp tension at 500 rpm. As warp tension was increasing, bed sheet fabric weights were decreasing but Air-permeability of bed sheet fabrics were increasing. During bed sheet fabric inspections, many fabric defects were detected and analyzed. According to fabric grading results, 66.67 % and 46.67%of the fabrics were meeting export requirement on BDTSC‘s and BTRA norms respectively by using four points grading system. Based on material handlings assessments, contaminations frequently affected bed sheet fabrics. | en_US |
| dc.language.iso | en | en_US |
| dc.title | STUDY THE PROCESS QUALITY PARAMETERS TO ENHANCE THE QUALITY OF BED SHEET FABRICS AT BDTSC | en_US |
| dc.type | Thesis | en_US |
