SOFTWARE APPLICATION FOR DESIGNING YARNS WITH SPECIFIED CHARACTERISTICS
SOFTWARE APPLICATION FOR DESIGNING YARNS WITH SPECIFIED CHARACTERISTICS

Summary/Abstract: Yarn quality is an essential concept, usually defined by the customers which demands simultaneous achievement of several requirements concerning the yarns characteristics. For the cotton type yarns, the tensile properties represent the most important parameters for assessment of yarn quality, because these features are key factors regarding the yarns behaviour in post-spinning operations (warping, weaving and knitting) and have a determinant contribution to the properties of final textile product. Hence, an accurate prediction of these characteristics is very important, from both technological and economic points of view. Providing the conditions for obtaining yarns with specified characteristics requires suitable selection of fibres used in blends, correct setting of the structure parameters of yarns and the processing conditions of the fibrous material, in close correlation with the yarn's end-use requirements, the manufacturing technology and the technical level of equipment. Finding an optimal variant of fibre blend involves considerable amounts of work, time and money. Therefore, the use of dedicated software for designing fibre blends may contribute to reduce these drawbacks and allows obtaining optimal blend recipes faster and more effective. The paper presents a software application developed primarily as a tool for teaching students the principles of rational design of fibre blends intended for cotton yarns with specified characteristics, but it can be also used by the spinning companies. The PFirB software is part of a package developed to support the teaching activities with the students from the Faculty of Textile-Leather and Industrial Management in Iasi, was created with Microsoft Visual Basic and Visual C++ and runs in a Windows environment.

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