Aplicação de Planejamento de Experimentos para análise de parâmetros em uma linha de perfumes em uma empresa de cosméticos

Abstract

In a cosmetics company, the complaints made by customers of defects due to product leakage generated the need for an investigation to improve the process. To find the root cause and define an action plan, the Ishikawa Diagram and 5W2H were applied. In addition, the study focuses on the application of the Design of Experiments technique for analysis and proposal of improvement of parameters in this line of perfumes. Three closure parameters were used: threading speed, application torque and line speed in comparison with the output variable: removal torque, used as an indicator of good bottle closure. Thus, the regression equation is presented that mathematically demonstrates the relationship of the input and output variables, in addition to the statistical analyzes in relation to the main effects and the iterations between the variables and then the Optimization function is applied to obtain the best values for the parameters according to the desired output value. With the analysis it is possible to confirm that there was relevance of the parameters chosen with the output variable, with the value of R2aj at 77%. In the end, the suggested optimization from these data, using the “Nominal is Better” type, demonstrates which values should be placed in the machine to obtain a better result with the value of the removal torque in 3lbxpol, according to these analyzed data.