||Chromic dyes are attracting attention in a variety of areas due to their ability to respond to external stimuli. Especially, spiropyran (SP) one of the photochromic organic dye is a widely used as an application for colorimetric sensor. However, there are limitation for generic applications because of its cost, stability and reliability. In this study, we introduced highly functionalized polymer materials as a supporter covalently bonded with controlled amount of chromic dyes. So, SP and highly functionalized thermoplastic polyurethanes (TPU) are used as a representative material. Also, normally polymeric solution processes such as film processing, wet-spinning, electrospinning and ink-writing are readily applicable because dye-TPU maintains its own solubility in various organic solvents. Additionally, dye-TPU solution can be adopted in broad range of specific applications, such as secret coding and chromic polymeric film layer.