Emotionally sustainable design helps users to develop an emotional attachment to a product and motivates them to continue using it, thus extending the product lifecycle, minimizing the need for new products and achieving product sustainability. However, the existing relevant design principles are still very scattered, and they could not effectively guide the emotionally sustainable design practice in a systematic way. We proposed an emotionally sustainable design (ESD) toolbox for product design based on the literature review and expert argumentation. The toolbox consists of seven themes and 20 principles under the three levels of emotional design. The usability of the ESD toolbox was then validated through design practice for the teapot product. The result shows that the ESD toolbox improved the efficiency of the sustainable design process and was helpful to the product’s sustainability.

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