Analysis of quality control of the final product of sarongs in the printing department using the seven tools method

Dina Rachmawaty; Nabila Ika Putri

Dina Rachmawaty Teknik Industri Institut Teknologi Telkom Purwokerto
Nabila Ika Putri Teknik Industri Institut Teknologi Telkom Purwokerto

Keywords: Defect, Quality, Seven Tools

Abstract

A product is of good quality provided that the product can meet standards and even exceed the standards set by the company in accordance with consumer desires. Quality control functions to reduce the number of defective products and ensure that the final product produced meets the company's quality standards and can pass inspection. Data processing was carried out using the seven tools method using several statistical tools. Primary data was obtained by observing and interviewing operators. Meanwhile, secondary data obtained from company archive data, analysis using scatter diagrams, shows that the relationship or correlation of data from production results and defective product data is more collected on the right side so that the data shows that there is a correlation or link between the amount of production and the number of defective products, which means that an increasing number of production will have an impact on an increasing number of defective products. Then, using a histogram, it was found that the defect that most frequently occurred in the printing process was the wrong motif, with the highest result being 10,248. Then, the next most frequently occurring defect was 5,537 fading, and the lowest defect was 3,495 fading. Then, by using the Pareto diagram, we obtained the types of product defects that often occur, namely 10,248 wrong motifs.

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