ABSTARCT: The present survey shows that microcapsules are used as effective tools for modification and functionalization of fibrous products. The core and shell materials of microcapsules can comprise various active ingredients in accordance with different requirements of final fibrous products. In this survey, the morphology, functional properties and added values of microcapsules, also such advanced types as nanocapsules, bi-, multifunctional microcapsules, and their applications in smart and other modern products are described. Some relevant applications of microcapsules in industrial processes are briefly discussed. The techniques used to encapsulate the core ingredients are also overviewed. and Portugal. She is the scientific expert of several organizations and the author/coauthor of more than 150 scientific works. Her main research interests include quality and applications of advanced fibrous materials.REVIEW WILEYONLINELIBRARY.COM/APP