http://nopr.niscair.res.in/handle/123456789/359 Search the Channel search http://nopr.niscair.res.in/simple-search http://nopr.niscair.res.in/handle/123456789/382 Title: Cloth roll doffing machine for Indian powerloom industry <br/> <br/>Authors: Guha, Anirban; Ramakrishnan, N; Talukdar, M K; Sharma, Prateek <br/> <br/>Abstract: A cloth roll doffing machine has been designed to overcome the constraint of cramped working condition in Indian powerloom industry. It is expected to be rugged and easy to manufacture. A single device can service many looms and can ease the strain on a worker. <br/> <br/>Page(s): 97-100 Wed, 27 Feb 2008 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/381 Title: Design of an automatic parallel type jute bag making machine <br/> <br/>Authors: Mahapatra, Abhijit; Patkar, Umesh S; Lanjewar, Rajesh W; Roy, Shibendu Shekhar <br/> <br/>Abstract: An attempt has been made to design a jute bag making machine in which all operations, like fabric cutting, hemming, mid-folding and herackle stitching, are carried out automatically in a single setup to produce parallel type jute bags of industrial standards. The salient design features of indigenously developed first prototype of an automatic jute bag making machine have been described. The proposed machine comprises four major units, like fabric cutting and conveying unit, simultaneous mouth edge folding and stitching unit, mid folding and material guidance unit, and simultaneous parallel side stitching unit. The motor drives, sensors and actuators are synchronized and automated by programmable logic controller. The proposed machine can produce bags of uniform quality with mouth edge folded, hemmed and parallel side stitched in one single integrated setup at higher productivity compared to present manual system. <br/> <br/>Page(s): 93-96 Wed, 27 Feb 2008 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/380 Title: A new bio-chemical scouring technique for cotton hand processing units <br/> <br/>Authors: Varadarajan, P V; Balsubramanya, R H; Nachane, Nayana D; Mahangade, R R <br/> <br/>Abstract: The cotton woven fabric has been subjected to anaerobic treatment using a mixed microflora at room temperature followed by mild alkali boiling. The required enzymes are produced in situ by a mixture of microflora and hence does not need external supply of costly enzymes. The treated fabric is then peroxide bleached, dyed with hot brand reactive dye and evaluated for various parameters. The results show that the properties of treated fabric are at par with the conventionally processed ones. The colour values of the treated and dyed samples are in fact higher than the conventionally processed ones. The above process can be easily coupled to the existing hand processing units. The new process may result in considerable reduction in pollution load along with appreciable saving in energy. <br/> <br/>Page(s): 88-92 Wed, 27 Feb 2008 22:58:59 GMT http://nopr.niscair.res.in/handle/123456789/379 Title: Effects of repeated home launderings and non-durable press on the colour properties of plain woven polyester fabric <br/> <br/>Authors: Mangut, Muruvvet; Becerir, Behcet; Alpay, Halil Rifat <br/> <br/>Abstract: The colour values and colour differences occurred in dyed polyester fabrics after repeated home launderings and non-durable pressings (hot-pressing) have been assessed. Two disperse dyes with different chemical structures (azo and anthraquinone) were applied to the polyester fabric separately at different dyeing concentrations and the domestic ironing was simulated by using international hot-pressing standards. The K/S value, lightness (L*), chroma (C*) and colour differences (DE*) were measured for the repeated experiment cycles. It is observed that the K/S values slightly decrease and L* values gradually increase, indicating the loss of some dyes from the fibres and decreasing depth. C* values increase as the experiment cycles increase. Colour differences are found to depend on the chemical class and concentration of the disperse dyes used, and colour measurement time. Dyeing at low dye concentrations is affected more from the repeated experimental procedure. <br/> <br/>Page(s): 80-87 Wed, 27 Feb 2008 22:58:59 GMT