Sol-Gel Technology

Sol-Gel Technology in Textile Finishing: A Complete Technical Guide

Sol-gel technology converts liquid precursors into structured inorganic coatings directly on textile fibers enabling flame retardancy, UV protection, antimicrobial activity, and hydrophobicity in a single processing step. The process relies on hydrolysis and polycondensation of metal alkoxides primarily silicon-based — forming a nanoscale siloxane network that chemically bonds to fiber surfaces. Compared to conventional wet…

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Reactive Dyeing

Different Methods of Reactive Dyeing of Cotton

A Deep, Practical, First-Principles Guide for Modern Dyehouses Why This Topic Matters Reactive dyes remain the backbone of cotton coloration—over 55–60% of global cotton is dyed with them. Yet most mills still rely on legacy recipes, struggle with shade reproducibility, face high salt/alkali costs, and encounter persistent issues: tailing in softflow, barre, low fixation, high…

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