Abstract
To construct the Sustainable Society, the importance of consideration to 3R (Reduce, Reuse, Recycle) in the design phase increases in various industrial products. Concerning Reuse and Recycle, the improvement of the disassembly property is important. Then we develop the quantity disassembly property assessment method Disassembly Property Index (DPI), one of the DfE (Design for Environment) supporting tool. In the Reuse and Recycle phase, Not only the improvement of the DPI but also the material compositions are important. Then, it is needed to be able to assess the 2R disassembly from the aspects of both the DPI and the material compositions. In this paper, we propose "2R disassembly index" based on the DPI and apply the index to Domestic appliances. Then, taking laptops for example, the improvement way of the index is proposed.