Dyeing Properties and Color Fastness of Chitosan Treated Cotton Fabrics with Thian King Leaves Extract

Abstract

Chitosan, a naturally available biopolymer, was used as finishing agent to increase dye uptake and color fastness of cotton fabrics. Thian King leaves extract a natural dye was applied on cotton fabrics after chitosan treatment. The whiteness index and tensile strength of samples were measured to study the effect of chitosan application. The color of dyed samples was investigated in term of the colorimetric parameters (L*, a*, b*, ∆E) and K/S values. The color fastness to washing, rubbing and light of dyed samples was determined according to AATCC test method. The results showed that the chitosan concentration enhances the whiteness index and tensile strength of the treated cotton fabrics. Chitosan treatment showed increase dye uptake of cotton fabrics. Fastness properties of these to washing, rubbing and light have also been discussed.

A Review of Chitosan Textile Applications

“…81 To practice the use of safe, biodegradable, and eco-friendly natural dyes, wool fabrics pretreated with chitosan have a high dye uptake and good colorfastness after dyeing when dyed with natural dyes, such as henna, Thian King, natural dyes extracted from the valves of capsules of the cotton plant, and so forth. 34,35,82…”

“…32,33 Therefore, cotton and wool fabrics with chitosan pretreatment have good affinity to anionic dyes, high dye uptake, and color strength. 21,[32][33][34]79,80 Due to similarities in structure between chitosan and cellulose, chitosan has good adsorbability to cotton fabrics through van der Waals forces. And chitosan can bind to cellulose through Schiff base reaction between cellulose's reducing end (-CHO) and the amino group of chitosan.…”

“…Chitosan already has numerous applications in the textile industry, including chitosan nonwoven fabrics, chitosan fibers and yarn, pretreatment of textiles, dyeing, printing, functional finishing of fabric, and wastewater treatment. 2,4,10,11,14,[21][22][23]26,[30][31][32][33][34][35][36][37][38][39][40][41][42][43][44] This review aims to present versatile properties of chitosan related to textile finishing and summarize applications of chitosan in the textile industry. Meanwhile, the advantages, disadvantages, and improved methods of chitosan application will be discussed briefly.…”

Evaluation of Cochlospermum vitifolium Extracts as Natural Dye in Different Natural and Synthetic Textiles

“…Natural dye applications have been restricted due to low dye fi xation rates and poor color strengths, especially for cellulose cotton-based fabrics [4]. Several approaches have been reported to improve the dyeing process, such as chemical and physical surface modifi cation by enzymatic action, plasma, gamma radiation, or cover materials [5][6][7][8][9][10], modifi cation of solution-surface equilibrium energy [11,2], modifi cation of the dye activation energy by ultrasonic waves [12][13][14], and the use of different mordants, tertiary amines/quaternary ammonium compounds (cationization methods), metal/metalloids salts, tannins, and enzymes [15][16][17][18]. All these methods try to increase the chemical affi nity between the dye and fi ber fabric surface, improving a high electrostatic affi nity or the covalent bond formation [19,20].…”

Chitosan‐templated bio‐coloration of cotton fabrics via laccase‐catalyzed polymerization of hydroquinone

“…Chitosan, consisting of β‐(1‐4)‐linked nacetyl‐ d ‐glucosamine and d ‐glucosamine, was widely applied as non‐toxic and biodegradable polymer for improving color depth of cotton fabrics due to its water solubility, fiber compatibility, and good affinity . Cotton fabric was pretreated with chitosan to improve its dyeing depth when using natural dyes, direct dyes, and reactive dyes . However, this method still cannot reduce the environmental impact which was caused by conventional dyeing methods.…”