Abstract
AbstractThis study focusses on the synthesis of carboxymethyl guar gum (CMG) via monochloroacetic acid under alkaline conditions. The reaction conditions were also optimized during the course of experiment. Guar derivative with variable degree of substitution (DS) were prepared and were confirmed by Fourier transform infrared (FTIR) spectroscopy. The DS was determined quantitatively by titration method for each derivative. The synthesized guar gum derivatives, being the natural thickners, have been used in textile printing technology. Substituted guar gum has been proved environmental friendly thickener as compared to synthetic thickeners. Penetration properties, fixation ability, colour fastness, levelness and fabric handling was compared with alginate thickener (commercially available). Guar gum thickeners showed enhanced properties versus alginate thickener and can be used as an alternative to synthetic thickeners in view of its green, non-hazardous and economical derivatives. Guar gum is the outstanding natural thickener, stabilizer, gelling agent and could possibly be used in various industrial units including food, cosmetic, textile, oil fracturing and mining.
Highlights
IntroductionCarboxymethylated derivative of guar gum have the
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To prevent unacceptable fabric handling while printing with reactive dyes, sodium alginates or synthetic thickeners are typically used as thickening agents
Summary
Carboxymethylated derivative of guar gum have the. D.N. Iqbal et al Green synthesis and characterization of carboxymethyl guar gum 213. To prevent unacceptable fabric handling while printing with reactive dyes, sodium alginates or synthetic thickeners are typically used as thickening agents. Environment friendly reactive dying method has been established by Schneider et al [7,21] using guar gum as a thickener. The use of very highly substituted guar gum as an alternative to alginates can be used in the printing of cotton with reactive dyes. The rheological, technological and colorimetric parameters of the mixed printing pastes were determined and used for comparison with the printing pastes of alginates [18,22,23,24,25]
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