DefinePK

Abstract

The textile industry in Pakistan covers the biggest part of its present industrial sector. The  application of organic cotton opens new lines for human health eco friendly textile products free from all kinds of chemical residues. Chemical free textile products are highly demanding on consumer's end at national and international market with high value. The present study endeavours to explore the quality parameters of organic cotton yarns made by conventional ring spinning and siro spinning techniques in respect of their tensile properties. The general objective of the research was to comparative evaluation of impact of siro and ring spinning techniques on the quality of the organic cotton yarn especially on its tensile properties. The core objective was to find the optimal settings and speeds of both spinning systems in order to have yarn of optimum tensile properties. For this study three different spindle speeds (8000, 10000 and 12000 rpm), three twist levels (3.75, 4.00 and 4.25) and three variant ring diameters (35, 38 and 40 mm) were selected. For analyzing the data statistically, three factor factorial design was applied. It was observed that the organic yarns made at siro spinning system, for slow spindle speed (8000 rpm), at high twist level (4.25) and with small ring dia (35 mm) which had better tensile properties as compared to that of yarn made at conventional ring spinning system for these settings.