Asis Mukhopadhyay

University of Calcutta

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Ashis Kumar Samanta

University of Calcutta

Tapas Ranjan Kar

Mahatma Gandhi Institute for Rural Industrialization

Sonica Sachdeva Batra

Dr. Reddy's Laboratories (India)

Rajnish Nagarkar

HCG Cancer Centre

Dipankar Chattopadhyay

University of Calcutta

Luis López Lázaro

Ministerio de Salud

Suresh Kankanwadi

Dr. Reddy's Laboratories (India)

Adwaita Konar

Serampore College

Dipak Rana

University of Ottawa

Auro Viswabandya

Princess Margaret Cancer Centre

Cooperative Institutions

University of Calcutta

Centre National de la Recherche Scientifique

Amirkabir University of Technology

École Nationale Supérieure des Arts et Industries Textiles

Jadavpur University

Institut de Recherche Dupuy de Lôme

Université de Bretagne Occidentale

Université de Bretagne Sud

Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement

Institut National Polytechnique de Toulouse

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Processing of jute fibres and its applications

Elsevier eBooks (2020)

Ashis Kumar Samanta Asis Mukhopadhyay Swapan K. Ghosh

Carding

Weaving

Textile

Viscose

10.1016/b978-0-12-818782-1.00002-x

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Citations (30)

Eco-friendly salt-free reactive dyeing of cotton (muslin) fabric after cationization with amino acid from soya

Textile Research Journal (2016)

Ashis Kumar Samanta Tapas Ranjan Kar Asis Mukhopadhyay Debashis Shome Adwaita Konar

Bleached cotton fabric was chemically modified (cationized)with natural amino acids extract obtained by acid hydrolysis (6N HCL) from soya bean seed waste, adding MgCl 2 as an acid donor in the pad-dry-calendaring process to investigate the changes in textile properties and its dyeability with reactive dye in both a conventional alkaline dye bath and salt-free acidic dye bath. This modified cotton incorporates new functional groups producing [Formula: see text] in acid bath to obtain cationized cotton, rendering it to eco-friendly salt-free reactive dyeing at acceptable shade depth without much sacrifice of other textile-related properties. Bi-functional high exhaustion-type reactive dye shows better dye uptake than mono-functional cold brand as well as hot brand reactive dye. Moreover, the application of a specific dye fixing agent further improves surface color depth ( K/ S) of the soya-modified cotton fabric. The study of surface morphology of said chemically modified cotton substrate indicates a higher degree of surface deposition, that is, more anchorage of soya extracted amino acids on cotton fabric. Chemical anchorage as per the reaction scheme postulated for such modifications is verified with Fourier transform infrared spectroscopy. Finally, it is revealed that cotton treated with soya extract provides a new route of eco-friendly salt-free reactive dyeing with high exhaustion-type reactive dyes showing much higher dye uptake than the control cotton fabric.

Reactive dye

Environmentally Friendly

Acid dye

Natural dye

Textile

10.1177/0040517515621135

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Citations (24)

Application of polyethylene glycol, cetrimide, chitosan and their mixtures on cotton muslin fabric to improve rot resistance, antimicrobial property and its salt-free reactive dyeing

Journal of the Textile Institute (2015)

Ashis Kumar Samanta Asis Mukhopadhyay M.M. Bhagwat Tapas Ranjan Kar

In the present work, cotton muslin fabric is treated with eco-friendly antimicrobial agents in order to observe the effect of those chemicals on the rot resistance properties, physical appearance, important textile-related mechanical properties and dyeability with reactive dyes. The cotton fabric has been treated with polyethylene glycol (PEG 200), cetrimide and chitosan individually and their blends, in the presence of citric acid and sodium hydrogen phosphate as mixed catalyst to investigate the effect of such treatment on fabric properties of treated cotton mentioned above. Amongst all individual and combined applications of above said chemicals, it is observed that treatment with a mixture of chitosan and PEG is showing good result in terms of improvement in rot resistance performance and an optimum balance in other textile-related mechanical and appearance properties indicating lowest degradation against microbial attack. A series of experiments were undertaken with varying percentage of both the chemicals to arrive at the optimum ratio of mixture of PEG and chitosan and compared with such effect for treatment with conventional quaternary ammonium compound EPTAC. This treatment shows much balance results and also creates a newer provision of salt-free reactive dyeing of such treated/cationized cotton muslin fabric by unconventional reactive dyeing in acid bath after such chemical treatment/modifications.

Cetrimide

Reactive dye

Textile

Chemical resistance

10.1080/00405000.2015.1114790

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Citations (9)

Effect Of Tensile Overstrain On Fatigue Life Of Welded Tubular Joints

Offshore Technology Conference (1978)

Jack G. Bouwkamp Asis Mukhopadhyay

10.4043/3255-ms

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