Kinetic and thermodynamic studies on red sandalwood

91-94Red sandalwood (Pterocarpus santalinus) has been used as a dye for wool and nylon with and without mordant. Ethanol extract of red sandalwood has been used for carrying out thermodynamic and kinetic studies on wool and nylon. The diffusion coefficients, rate of dye uptake, adsorption isotherms, standard affinity, enthalpy and heat of dyeing have been calculated. It is observed that the red sandalwood dye has higher rate of dyeing and more affinity for nylon than those for wool.

Dyeing of red sandal wood on wool and nylon

221-226The use of red sandalwood (Pterocarpus santalinus) extract as a dye for wool and nylon has been explored. The colouring components were extracted with organic as well as aqueous alkaline solution from the sandalwood and the physico-chemical properties of the dried extracts evaluated. The extracted dye was applied on wool and nylon with and without mordants and the fastness of the dyed samples to light and washing studied. The light fastness of the dyed wool samples improved substantially on mordanting with copper sulphate and ferrous sulphate. The wool and nylon samples dyed and treated with mordants, except copper sulphate, showed good wash fastnes

The Diasporic Pursuit of Home and Identity: Dynamic Punjabi Transnationalism

This paper examines the pursuit of home within a diasporic British Indian Punjabi community. It is argued that the British Asian transnational pursuit of home is significantly shaped by the dynamic social context of South Asia as well as social processes within Britain and across the South Asian diaspora. Drawing upon a decade of original, transnational, ethnographic research within the UK and India, I analyze the rapidly changing social context of Punjab, India, and the impact of this upon the diasporic Punjabi pursuit of home. I particularly argue that increasing divisions between the UK diasporic group studied and the non migrant permanent residents of Punjab, which are intrinsically related to processes of inclusion and exclusion within Punjab, especially the changing role and significance of land ownership and changing consumption practices therein, in turn connected to the increasing influence of economic neoliberalization and global consumer culture within India, significantly shapes the (re)production of home and identity amongst the Punjabi diaspora. Recent manifestations of these social processes within Punjab are threatening the very lived Indian home of some diasporic Punjabis, their Indian ‘roots’