Computer-aided design of luminous fiber embroidered fabric and characterization of afterglow performance

Luminous fiber embroidered fabric with a long afterglow effect is prepared by luminous fiber through a computer-aided embroidery machine. As the main raw material, rare earth luminescent material and polymer are used to produce the luminous fiber by the melt spinning process. In this research, the light-emitting portion of the fabric, which uses the principle of superposition of light, is designed by multi-layer construction in computer-aided design software. The afterglow performance of the designed fabric has been characterized. As a result, the size of stitch spacing is inversely proportional to the afterglow intensity of the fabric, and the fabric with a tatami needle has the maximum afterglow intensity in this experiment. Compared to the fabric with non-superimposed stitches in layers, the luminous fabric with superimposed stitches has higher brightness, longer duration of emitting light, and better stable luminescent properties.