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Photonic crystals (PCs) prepared from monodispersed nanoparticles into regular lattices has attract great attention in the past decades. PCs have showed great advantages in textiles comparing with the traditional dyes due to their bright color, not fade and environment friendly. However, textiles colored by PCs generally do not have antifouling properties and poor stability on the fabrics makes them not resistant to wash. In this work, monodispersed SiO 2 and polydimethylsiloxane (PDMS) with low glass transition temperature is chosen to make up the PCs coatings. To increase the stability of the PCs on the fabrics SiO 2 nanoparticles was also modi ed by PDMS. Then the washability and antifouling properties of the PCs coated fabric was systematically studied. To further verify the availability of this method, fabrics with different chemical compositions, weaving modes, surface densities, and original color were used as the substrate to construct PCs-coatings. The in uence of the fabrics structure on the structural color, re ectance spectrum, and stability of the coatings were further studied. This work will play as a guide for constructing washable and antifouling PCs on different fabric surfaces.

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