Investigation of Organza Fabric and Polyester Mesh Direct Welding for Adjusting Indoor Brightness

With increasing interest in improving indoor lighting comfort and energy efficiency, the development of lightweight and multifunctional decorative materials has become important. In this study, a polyester organza fabric-polyester mesh was fabricated using a direct thermal welding method to adjust an indoor atmosphere. Different colors of organza fabric and polyester mesh were welded under various temperatures ranging from 320 to 480 °C, and their mechanical strength, visible light transmittance, and color rendering were analyzed. Brighter organza colors exhibited higher visible light transmittances, while these values decreased with multi-stacking of organza fabrics. The combination of different colors of organza fabrics produced forty-eight novel colors. Increasing welding temperature enhanced polymer chain entanglement between organza fabric and polyester mesh, achieving a maximum joint strength of 10.25 MPa. The direct welding of organza fabric and polyester mesh is lightweight, flexible, and enables color diversity, therefore it can be a good candidate material for lighting and shading to adjust indoor atmosphere.