Investigation of the dynamic strength and frictional properties of the sized yarns
Project no. 739 · Status: Kapanmış · 2016
Summary
ABSTRACT On the weaving machine, the warp yarns are subjected to several types of friction, cyclic strain, flexing, abrasion at various loom parts and inter yarn friction. With sizing, the strength, abrasion resistance and finally weavability of the yarn will improve and this results with higher productivity and quality of the weaving process. In this study the effect of sizing material and sizing process parameters on the physical and mechanical properties of the yarns, produced with different spinning systems, were investigated. For this purpose, 100% ring spun, siro spun, compact, and compact siro spun yarns were produced. In the sizing process of these yarns were sized with different sizing materials (carboxymethyl cellulose (CMC), polyvinyl alcohol (PVA), starch and pernamul be 20) in different concentration (4%, 6% and 8%) and temperature (20C°, 50C° and 80C°). Breaking strength, breaking elongation, yarn to yarn friction and yarn to metal friction characteristics of the yarns before and after sizing process were tested and evaluated. Optimum sizing parameters for the yarns were determined. Keywords: sizing, carboxymethyl cellulose (CMC), polyvinyl alcohol (PVA), starch, yarn to yarn friction, yarn to metal friction.