Abstract
This research revolves around the geometrical modelling of jacquard warp knitted fabric for the prediction of warp knitted structures and improvement of warp knitting simulation software i.e HZCAD. Geometric modelling of warp knitted fabric has become the topic of interest for scientists and research studies for the last few years. The yarn is a basic fundamental raw material for all kinds of fabric industry. After considering yarn's performance and appearance the major attention is to resolve the cost. The objective of this project is to develop a geometrical model for simple jacquard warp knitted fabric, to predict actual required yarn quantity and its actual yarn cost and to develop and improve a warp knitting simulation software for the simulation of these warp knitting design. The variable that usually influence yarn consumption are gauge of the warp knitting machine, yarn thickness, yarn composition, number of stitches in one repeat of the fabric, total number of needles in one repeat of the fabric and number of stitches per inch. It was concluded that the derived geometrical formula predicted the yarn consumption accurately up to 89.84% and using these geometries to improve the HZCAD software was effective. In the industry this geometrical formula can save time and can be helpful in calculating the cost of yarn. It will expand profit margin and save time.