A Method for Designing Age-Friendly Packaging Using the Kano-AHP-TOPSIS Model

With the rapid development of social and economic conditions, packaging design has gradually shifted from a traditional focus on functionality and aesthetics to a more personalized, scientifically rational, and technically sophisticated approach. However,existing market packaging often fails to adequately address the specific needs of aging consumer groups in an aging society, thereby limiting its innovation and practicality. This study investigates the changing packaging needs of elderly users and proposes a demand analysis model for elderly-friendly packaging design that integrates the Kano model, AHP method, and TOPSIS method. User requirements were categorized using the Kano model, initial weights were calculated with the AHP method, and satisfaction matching degrees were adjusted using the TOPSIS method to derive a prioritized ranking of needs and design guidelines. The validity of this method was verified, and the findings indicate that elderly-friendly packaging design should prioritize fundamental requirements (e.g., clear expiration date labeling and simplified structure) while emphasizing enhancements in user experience and the preservation of user dignity as core needs. The proposed design strategy not only optimizes elderly-friendly packaging design but also contributes to the sustainable development of the industry and provides valuable guidance for future innovation and practice.