NOPR Community:

Quality attributes of double-humped camel hair fibres

2003-06-01T00:00:00Z

Title: Quality attributes of double-humped camel hair fibres Authors: Sahani, M S; Yadav, Banamali; Mal, Gorakh; Dhillon, R S Abstract: The quality attributes of double-humped camel hair fibres collected from shoulder, mid-side and hump regions of both calves and adults have been studied. It is observed that the mid-side region fibres in both calves and adults have better textile properties which make them ideally suitable for apparels, such as sweaters, coats and shawls, and various other domestic utility items (wall hangings and hand-tufted carpets). The comparative analysis of the fibre quality attributes of calves and adults Bactrian camels indicates superiority of calves over adults. The fibre quality attributes, especially diameter and per cent pure fibres, support the use of camel fibres for woollen items (sweaters, coats and caps) in pure fibre form as well as in the form of blends with other animal fibres (wool and silk) and synthetic fibres. Page(s): 227-229

Dyeing of red sandal wood on wool and nylon

2003-06-01T00:00:00Z

Title: Dyeing of red sandal wood on wool and nylon Authors: Gulrajani, M L; Bhaumik, S; Oppermann, W; Hardtmann, G Abstract: The 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 fastness Page(s): 221-226

Greener printing of natural colour using microwave fixation

2003-06-01T00:00:00Z

Title: Greener printing of natural colour using microwave fixation Authors: Hakeim, O A; Nassar, S H; Haggag, K Abstract: Wool fabric has been printed with 2-hydroxy-1,4-naphthoqunione (the main colouring material of henna) using different modes of fixation such as microwave heating, steaming and thermofixation and the effect of printing conditions (dye concentration, pH of printing paste, glycerin concentration, mordant type and thickening agent type) on the colour strength and fastness properties of the printed samples studied. It is observed that the printing paste containing 0.3% dye and 3% glycerin, thickened with CMC, maintained at pH 3 and fixed by microwave heating for 4 min gives the highest K/S value without the need of drying step. The printed samples fixed by the conventional fixation method (steaming or thermofixation) give brownish red shade while those fixed by microwave heating give orange shade. The colour strength and overall fastness properties of the microwave - fixed samples are found to be good and the samples acquire soft handle. Page(s): 216-220

Spirality of weft knitted fabrics: Part IV—Effect of yarn partial detwisting on yam and fabric properties

2003-06-01T00:00:00Z

Title: Spirality of weft knitted fabrics: Part IV—Effect of yarn partial detwisting on yam and fabric properties Authors: Primentas, A; Iype, C Abstract: The alteration in the yarn properties that possibly occurs during the detwisting process has been experimentally studied. A small reduction in yarn tenacity and hairiness and slight changes in other yarn properties have been observed. It is shown that the yarn steam setting is essential for getting the best results in spirality reduction. The avoidance of any time delay between yarn detwisting and fabric knitting contributes positively to the minimization of fabric spirality. Page(s): 209-215