Kansei evaluation on shape design of PET bottle

Abstract

This study proposes an evaluation method based on Kansei Engineering to clarify the primary factors that could affect to the impression of bottle shape and label design of PET bottle. Focused on the PET bottles of natural waters only, this paper classifies them based on a clustering method using physical shape and label design features, evaluates them using Kansei engineering techniques, and determines the design parameters using Preference Set-Based Design (PSD) analysis to clarify the primary factors of impression. First, PET bottle samples and their derivative bottles are prepared/generated to cover diversity of PET bottle design, and cluster analysis is performed them to classified them to representative categories. Kansei evaluation to these samples in each category is performed by a variety of subjects online/offline and its Kansei evaluation is performed to clarify the impression of PET bottles. In order to eliminate the bias of the subjects, cluster analysis is performed to classify the subjects into representative categories with similar preferences to PET bottles. Finally, PSD analysis is performed on each classified cluster to clarifies the primary factors that could affect to the impression of bottle shape and label design.