Sistema de Engenharia Kansei para seleção de alternativas de embalagens com critérios sustentáveis de materiais

Abstract

The product development that considers sustainability and potential costumers needs aspects on it the process has become more important to the competitiveness of organizations and to the environment either. The design and materials selection is one of the initial steps in the development of packages and its results generate impacts that ranges from the manufacturing processes, the marketplace success and the disposal in nature. There are methods that to incorporate the costumers needs and translate it in product technical requirements and, among these, Kansei Engineering stands out, it has as the main features the high user/consumer participation in the product design through matematical and computational techniques and tools that attempt to translate consumer´s perceptions in product requirements. In that sense, this dissertation presented a proposal of Kansei Engineering System that integrates the consumer´s perceptions with susteinability criteria about sweet milk packages design. The aim was the system development to select the packaging draw preferencial for the target public and more sustainable about the adopted criteria. The consumer´s perceptions were colected using questionares and after worked applying quantification theory type I and fuzzy triangular numbers integrated with a expert system based in genetic algorithm. The sustainability criteria adopted was CO2 emissions rate, recycling rate in Brazil, decomposition time in nature and the materials reuse financial return used in each package model. The materials used in the research are glass, steel and polypropylene plastic (PP), which are found on packages in the Brazilian market and composes the main components of the package; body and lid. The results show the feasibility of using Kansei Engineering in the product development process, especially in the selection product shapes step moreover the proposal of incorporation sustainability criteria to evaluate packages, provinding improvements in decision-making insertion of more sustainable packages in the Market.