ANALISA STATISTIQAL QUALITY CONTROL (SQC) SEBAGAI PENGENDALIAN KUALITAS PRODUK DI CV.PILAR KARYA

Abstract

CV.Pilar Karya is a company engaged in printing, one of the products of which is cake packaging, namely solim packaging. In this study, efforts to improve quality were carried out using the Statistical Quality Control (SQC) method. Analysis was performed using several tools from seven tools. Based on data from CV.Pilar Karya collected using the Check Sheet, there are five types of defective products such as unclear writing, unclear colors, unprinted writing, sloppy cutting results and folded paper. Based on the Pareto diagram, it is known that the most dominant types of defects are three types of defects, namely unclear writing, unclear color and non-printed writing, from the flowchart of the production process defects are found after the printing process is carried out, then analysis is carried out on the previous production process using a fishbone diagram, from fishbone analysis The diagram found that there are 2 main causes, namely the printing machine with the problem of ink not being mixed evenly, the water motor is damaged, the compressor is damaged and in humans or operators with problems that do not fit the machine setting, the installation of the slanted plate. Based on the p control chart, it can be seen that the printing production process activities, the quality of the products produced are not well controlled so that there are defective products that exceed the tolerance limits set by the company. From processing using a scatter diagram, it is known that the relationship between the amount of production and the number of product defects has a positive correlation. After the cause of the defect is identified, recommendations for improvement are made using the 5W1H concept.