Colouration of Silk with Natural Dyes
Colouration of Silk with Natural Dyes
Dr. Rajashree Phukon, Registration ID- AB/565 , Assist. Prof., Sibsagar Girls’ College, P.O.Sivasagar, Assam, Pin-785640, e-mail ID:rajashreephukon@yahoo.com
and
Mr Diganta Kr. Borah, Research Scholar, Department of Economics, Dibrugarh University, Assam, India, e-mail ID: digoborah@yahoo.in.
ABSTRACT
The study was undertaken with an aim to develop the dyeing conditions of four different natural dyes which are easily available in North East India, namely Myrica nagi Thumb. (Bay berry), Garcinia xanthochymus Hook. f. (Cochin goroka), Artocarpus integrifolia Linn. f. (Jack fruit), and Eugenia jambolana Lam. (Black plum) on silk yarn. The natural mordant used in the research work is Aluminium Potassium Sulphate (AlK (SO4)2) for better fixation of the dyes. The dyes are extracted by alkaline method and the extraction time is optimized from the optical density values. The pre-mordanting method is used for mordanting the yarn. Shades of different colours, ranging from yellow to brown are obtained from the dyes on silk yarn. Fastness grades rated for all the samples are found to be good irrespective of all the dyes. The dyes are found to be an ideal source which could be adopted at commercial level.
1. Introduction
Natural dyes have been part of man’s life, since time immemorial. The age-old art of dyeing with natural dyes was common in India. Natural dyes are obtained from natural sources such as vegetable matter, minerals and insects. Early efforts of colouring fabrics were hampered by the fact that some of the dyes are not very colourfast. Eventually scientist found that this defect could be partially overcome by the use of mordant. The natural colouring substances are now developing trends for their use all over the world because of health hazards and toxicity problems created by the synthetic dyes [1].
2. Objective:
Considering the growing importance of natural
Dr. Rajashree Phukon, Registration ID- AB/565 , Assist. Prof., Sibsagar Girls’ College, P.O.Sivasagar, Assam, Pin-785640, e-mail ID:rajashreephukon@yahoo.com
and
Mr Diganta Kr. Borah, Research Scholar, Department of Economics, Dibrugarh University, Assam, India, e-mail ID: digoborah@yahoo.in.
ABSTRACT
The study was undertaken with an aim to develop the dyeing conditions of four different natural dyes which are easily available in North East India, namely Myrica nagi Thumb. (Bay berry), Garcinia xanthochymus Hook. f. (Cochin goroka), Artocarpus integrifolia Linn. f. (Jack fruit), and Eugenia jambolana Lam. (Black plum) on silk yarn. The natural mordant used in the research work is Aluminium Potassium Sulphate (AlK (SO4)2) for better fixation of the dyes. The dyes are extracted by alkaline method and the extraction time is optimized from the optical density values. The pre-mordanting method is used for mordanting the yarn. Shades of different colours, ranging from yellow to brown are obtained from the dyes on silk yarn. Fastness grades rated for all the samples are found to be good irrespective of all the dyes. The dyes are found to be an ideal source which could be adopted at commercial level.
1. Introduction
Natural dyes have been part of man’s life, since time immemorial. The age-old art of dyeing with natural dyes was common in India. Natural dyes are obtained from natural sources such as vegetable matter, minerals and insects. Early efforts of colouring fabrics were hampered by the fact that some of the dyes are not very colourfast. Eventually scientist found that this defect could be partially overcome by the use of mordant. The natural colouring substances are now developing trends for their use all over the world because of health hazards and toxicity problems created by the synthetic dyes [1].
2. Objective:
Considering the growing importance of natural
References: 1. Vankar, S.P. (2001) ., Current Trends in Natural Dyes for Eco friendly Textiles. Textile Indus. Trade J. 39(9-10):19 2 3. Singh, O.P. (2002). Natural dyes : The pros and cons. Indian Tex. J. January : 42-46 4