NOPR Collection:

Determination of Percentage of Medullated Fibres in Wool

2016-07-20T06:12:31Z

Title: Determination of Percentage of Medullated Fibres in Wool Authors: Patni, P C; Parthasarathy, S; Bapna, D L Abstract: The dichlorobenzene method for the determination of percentage of medullated fibres is more precise as compared to the projection microscope method; 300-400 fibres should be observed for accurate assessment of the percentage of medullated fibres from wools of different qualities. Page(s): 136-137

Comparison of Stress-Strain Characteristics of Indian Wool at Definite Diameter Intervals

2016-07-20T06:11:34Z

Title: Comparison of Stress-Strain Characteristics of Indian Wool at Definite Diameter Intervals Authors: Parthasarathy, S; Bapna, D L Abstract: Certain stress-strain characteristics of Ram bouiliet, Ramb. × Chokla and Chokla wool fibres in water have been compared after dividing the fibres into five diameter interval groups. Stresses at 2 and 30% extension and the Hookean slope differ significantly in groups and breeds, whereas stresses at 15% extension and breaking stress differ significantly among the diameter groups. There is no significant effect of breeds and groups on breaking extension. Page(s): 133-135

Production and Characterization of Nylon-6 Filaments Containing Carbon Black

2016-07-20T06:10:37Z

Title: Production and Characterization of Nylon-6 Filaments Containing Carbon Black Authors: Datye, K V; Mishra, S; Gupta, V B Abstract: Nylon-6 filament yarns containing up to 1.5% carbon black have been prepared using two different methods, viz. (1) incorporating carbon black in disperse form during polymerization and melt spinning, and (2) blending the chips containing 1.5% carbon black, prepared as in (1), with chips without any carbon black (blank) and melt spinning. The filaments thus produced were examined for their structure and properties. It has been observed that the samples prepared by method (1) are more homogeneous and have more uniform properties. Page(s): 126-132

Effect of Preparatory Process Parameters and Machine Conditions on Weaving Performance

2016-07-20T06:09:37Z

Title: Effect of Preparatory Process Parameters and Machine Conditions on Weaving Performance Authors: Sharma, I C; Kaushik, R C D Abstract: The Barbar Colman (BC) high speed spooler and the BC high speed warping machine have been compared with the Rotoconer winding machine and the Cimmco high speed warping machine respectively in respect of their effect on weaving performance by carrying out large scale mill trials. The BC spooler shows better weaving performance than the Rotoconer winding machine due to the higher clearing efficiency of BC snick plates. The type of warping machine does not influence the weaving performance. Page(s): 121-125