engleski

Comparative Analysis of the Standard Sizing Process and the Pre-wet Sizing Process

The aim of this paper is to show, using a comparative analysis, all the differences, as well as existing advantages and disadvantages of two different sizing procedures. Materials used in the implementation of this extensive research are ring-spun cotton yarns, sized with PVA size. Tested parameters of yarn were analyzed, subjected to a statistical analysis and compared. All obtained knowledge is supported by a detailed analysis of the microscopic cross-sectional images of unsized yarns and yarns sized with both processes, where differences in the distribution of size pick-up on the yarn between two sizing processes are distinctly observable. The whole research, which is based on proving the technological justification and optimization of pre-wet sizing, lead us to think that it is a really exceptional technological process, which greatly contribute to large savings of sizing agents, water, energy and environmental protection, without any consequences on the quality of sized yarn.

pre-wet sizing; standard sizing; ring-spun cotton yarn; mechanical properties; size pick-up

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