Photonic-Crystal-Printed\nFabrics with Wash Resistance\nProperties for Color Stability Based on Hot Press Printing of ZnS\nNanoparticles

Photonic\ncrystals (PCs), which are micro nanostructured materials\nperiodically arranged from media with different refractive indices,\nhave attracted great interest in textile coloring over the past decades.\nHowever, the washing resistance of PC-based fabrics cannot meet the\nrequirements of daily washing, which limits the application of PCs\nin coloring. Therefore, it is particularly important to further improve\nthe washing resistance of PC-based fabrics. Herein, high-refractive\nindex zinc sulfide (ZnS) nanoparticles were spray-coated on polyethylene\nfilms with patterns to construct PC-based fabrics by hot press printing.\nThe excellent toughness of polyethylene was utilized to improve the\nwashing resistance of fabrics. The influence of the hot press process,\nthe color control method of PCs, and the washing and friction resistance\nof fabrics were systematically studied. Generally, the wash resistance\nof the obtained fabric did not fade after 24 times of laundered washing.\nThe results of this work will benefit the application of PCs in textile\ncoloring, sensors, and so on.