Navegando por Autor "Oliveira, Breno Cézar Cabral de"

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Análise de parâmetros de qualidade de tintas em um impressora de rotogravura
(2024-01-29) Oliveira, Breno Cézar Cabral de; Diniz, Verônica Cristhina de Souza; http://lattes.cnpq.br/9239037374332331; http://lattes.cnpq.br/0857097292608960
This article aims to conduct a study on the relationship between the quality of inks used in a rotogravure printer and the enhancement of packaging quality produced by the printing process. Goals include conducting a detailed evaluation of ink characteristics, addressing color management plans, analyzing the cost/quality of inks, and describing project management strategies. The methodology for ink analysis and continuous monitoring of printing processes record data related to ink quality through colorimetric analyses (Lab, DeltaE, drying time, viscosity, density). Statistical tools are utilized to evaluate the significance of improvements observed in ink quality. In this analysis, 20 products were monitored, internally labeled as works 1 to 20, while strictly adhering to viscosity and drying time values. By monitoring inks using DeltaE, Lab, and density, a notable 40% reduction in machine color adjustment time was observed, leading to a 15% decrease in downtime across the 20 analyzed works. The ink quality analysis software used demonstrated an accuracy above 80% compared to the reference. Regarding ink costs, they were found to be aligned with the market. All analyses of raw materials revealed positive results, emphasizing the effectiveness of reusing standards for laboratory technicians, resulting in a significant improvement in the methods used.