Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing
Hebash, A., Abdelrahman, A., Nassar, S., Elsayad, H., Elshemy, N. (2019). Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing. EKB Journal Management System, 62(11), 1971-1986. doi: 10.21608/ejchem.2019.5236.1466
Ali Hebash; Amal Abdelrahman; Sahar Nassar; Hanan Elsayad; Nagla Elshemy. "Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing". EKB Journal Management System, 62, 11, 2019, 1971-1986. doi: 10.21608/ejchem.2019.5236.1466
Hebash, A., Abdelrahman, A., Nassar, S., Elsayad, H., Elshemy, N. (2019). 'Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing', EKB Journal Management System, 62(11), pp. 1971-1986. doi: 10.21608/ejchem.2019.5236.1466
Hebash, A., Abdelrahman, A., Nassar, S., Elsayad, H., Elshemy, N. Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing. EKB Journal Management System, 2019; 62(11): 1971-1986. doi: 10.21608/ejchem.2019.5236.1466

Microstructural Features of Galactomannan Fenugreek Gum Newly Oxidized by Sodium Perborate under Microwave Irradiation for Reactive Printing

Egyptian Journal of Chemistry
Article 1, Volume 62, Issue 11, November 2019, Page 1971-1986  XML PDF (1.6 MB)
Document Type: Original Article
DOI: 10.21608/ejchem.2019.5236.1466
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Authors
Ali Hebash1; Amal Abdelrahman1; Sahar Nassar2; Hanan Elsayad3; Nagla Elshemy email orcid 4
1National Research Center, Textile Research Division, 33 El Buhouth st., Dokki, Cairo, Egypt
2Textile Research Division, National Research Centre, Cairo, Egypt
3National Research Centre
4Dyeing, printing and auxiliaries department, Textile division, National research centre, Doki, Cairo, Egypt
Abstract
Galactomannan gum was extracted from fenugreek seeds through seed grinding and sifting, washing and filtering and precipitating by ethyl alcohol and drying. Thus obtained products were submitted to innovative oxidation using microwave irradiation and sodium perborate (SPB) oxidant under a variety of conditions. Variable studied include concentration of SPB and duration of oxidation as well as pH and temperature of the oxidation reaction. Thus oxidized gum samples were subjected to chemical and chemical-microscopically analysis for quantitative determination of carboxyl and carbonyl groups and rheological properties along wilts residual SPB. Microstructural changes in the innovatively oxidized gum vis-à-vis those of conventionally oxidized gum were presented. Results indicate that the innovative oxidation using the microwave for heating the oxidation medium containing SPB consumes less time and energy than the conventional oxidation by SPB using conventional heating. Results indicate further that current oxidation using the microwave or conventional heating brings into focus oxidized galactomannan gums, which induce excellent overall color fastness when applied as thickeners in printing pastes of reactive dyes. These gums may be considered as a real substitute for sodium alginate thickener which is universally accepted thickeners for reactive printing on cotton. In addition, oxidized galactomannan gum creates eco- friendly environment during its preparation.
Keywords
Keywords: Textile Printing; Color; dyeing; Chemical modification; properties
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