SQUID INK IN TEXTILES: EXTRACTION, FUNCTIONAL PROPERTIES AND EMERGING SUSTAINABLE APPLICATIONS

The investigation of marine-derived biomaterials for sustainable textile innovation has been prompted by growing environmental concerns about synthetic dyes and functional finishing chemicals.A naturally occurring secretion mainly made up of proteins, polysaccharides, and eumelanin, squid ink has shown promise as an environmentally benign pigment with a variety of uses.Research into squid ink extraction, chemical composition, dyeing performance, antibacterial efficacy, ultraviolet protection capabilities, conductivity potential, and advanced textile applications is critically examined in this overview of Scopus-indexed literature.Squid ink's melanin-rich structure has exceptional photostability, antioxidant activity, and biocompatibility in addition to a significant binding affinity for natural fibers.Recent developments suggest that it may find application in protective clothing, biological fabrics, and intelligent wearable technology.Not withstanding its practical benefits, issues like industrial standardization, scalability, and shadow repeatability continue to be major obstacles.This study summarizes the results of recent studies and suggests ways to include squid ink into environmentally friendly textile production processes in the future.