Enhancing Printability of Natural Fabrics via Pre-treatment with Polycationic Polymers

Document Type : Original Article


1 National Research Centre (NRC), Textile Research and Technology Institute (TRTI), Pre-treatment and Finishing of Cellulose-based Textiles Department (PFCTD), El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt

2 Textile Printing, Dyeing and Finishing Department, Faculty of Applied Arts, Benha University, Benha, Egypt


In this study natural fabrics such as cotton (C), wool (W) and cotton/wool (CW) fabrics were treated using polycations (PC) such as polyethyleneimine (PEI) and chitosan (CH) to enhance the printing results for natural and synthetic dyes. The effect of polycation concentration, printing paste pH, time and temperature of fixation on printing performance were studied. SEM, methylene blue test, FTIR, reflectance spectroscopy, water contact angle measurements, and antibacterial test were used to investigate the cationic group content, chemical surface modification, whiteness index, surface tension, and antibacterial properties of the modified cotton samples. Bactericidal inhibition tests revealed that the modified fabric with chitosan/TPP bilayers may enhance the degree of inhibition on E. coli and S. aureus bacteria. It was a simple and cost-effective approach.


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