Taguchi Method Approach To Plastic Bag Production: A Significant Efforts To Reduce Defects In The 24 Size Blowing Process

Ojakma Sihar Panaili Tumanggor (Industrial Engineering, Faculty of Engineering, Mpu University Tantular)
Sindhu Wismantoro (Industrial Engineering, Faculty of Engineering, Mpu University Tantular)
Kurniawan Agung (Industrial Engineering, Faculty of Engineering, Mpu University Tantular)
Edi Saneka (Industrial Engineering, Faculty of Engineering, Mpu University Tantular)

Journal of Innovative and Creativity
Vol. 5 No. 2 (2025)

The height level product defects​ pocket plastic Size 24 at CV. Prima Jaya Plasindo become problem main cause​ waste material standards and inefficiencies production . Research This aim identify and optimize production process parameters that contribute to disabled , with use Taguchi method . Four factors tested​ that is front , middle , and rear barrel temperatures , as well as anti- humidity dosage . Experimental design using Orthogonal Array L9(3^4) and analyzed with Signal to Noise Ratio (SNR) and Analysis of Variance (ANOVA) methods . The results show that the most significant factor influence disabled is front barrel temperature ( 65.46% contribution ), followed by anti- humidity ( 19.31%), middle barrel temperature (12.34%), and rear barrel temperature (0.83%). The optimal parameter combination obtained are A2 ( Rear Barrel Temperature 142°C), B1 ( Middle Barrel Temperature 145°C), C1 ( Front Barrel Temperature 148°C), and D1 ( Anti- Moisture Dosage 102 grams). Experiment confirmation show that average results and SNR values are within the confidence interval predictions , which prove validity results optimization . Research This succeed show that implementation Taguchi method in significant capable lower level defects , especially disabled spots white , in production process pocket plastic .