Inventory Modeling of Sliver in the Cotton Bud Process: A Case Study of Factory

Abstract

The objective of this research is to formulate the inventory model of sliver sized 1.3 14 and 1.8 gram per meter, which have been highly used in three departments in the cotton bud factory. The sliver stock and the number of transportation trip depend on the estimation of sliver use from each chief's department. The over estimation of sliver use increases the transportation cost and holding cost. From the study of sliver use in the part. it was found that the usage rate of sliver was normal distribution. Therefore. the slivers model are forecasted by using QSB+ program (version 2.1) with adjustable weight factor for all loops of forecasting. The forecasting demand is applied to find the most economic order quantity, ordering period and the appropriate ordering frequency. From this study. the results show that the case study of factory can reduce the average total cost (transportation cost and holding cost) during January 2009 to April 2009, by 8.04 percent.