Defect reduction for fabric cutting process to produce polo shirts : a case study of garment factory

摘要

This research aims to study the factors affecting the crooked fabric cutting and to present the new cuttingprocedure that complies with the factors affecting the crooked fabric cutting of a case study. The defect infabric cutting process was crooked fabric making nonconforming product. The cause and effect diagramwas utilized to analyze and suggest related factors leading to the problem. It was showed that the number oftimes of knife sharpening and the number of layers in fabric paving would affect the crooked fabric cuttingthe design of experiment was applied to determine appropriate the level of these factors. The main factorsignificantly affected the crooked fabric cutting (p & 0.05) was the number of times of knife sharpening, but the number of layers in fabric paving and interaction between both factors would not significantly affect thecrooked fabric cutting. The number of times of knife sharpening in the level 4 had been sharpened twentytimes in each cutting round. The least average defective proportion was 0.0173. Then the new cuttingprocedure would significantly reduce average defective proportion. It could reduce the average number ofdefective items as 5.74 pieces in each cutting round or 70.52 percents.