Abstract:

Predicting the spun yarn tenacity from fibre properties is essential. The tenacity of spun yarns is one of the most important properties in determining the yarn quality, since it directly affects the winding, weaving and knitting production efficiency as well as the use of the fabric. Many research works tackled this subject trying to predict yarn properties from fibre properties. In this research work, a general review on the yarn tenacity topic was performed and a fibre quality index was developed and used for the prediction of yarn tenacity. A study on the potential of predicting yarn tenacity from single fibre tenacity and bundle fibre tenacity was presented, followed by the introduction of the MFQI as a viable factor for the prediction of yarn tenacity for ring and compact spun yarn. The results showed that Bundle fibre tenacity gives better results than single fibre tenacity in predicting the yarn tenacity. Index MFQI is proved to be highly correlated with the yarn tenacity.