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Influence of Rheological Size Parameters on Yarn Properties

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Abstract:

The paper describes the results of changed size viscosity as a function of the temperature, concentration and shear stress. The rheological properties of size with various concentrations in combination with components of synthetic sizing agents based on polyvinyl alcohol (PVA) and carboxymethyl cellulose (CMC) were investigated. The size viscosity increased with decreasing temperatures and the increasing spindle speed of the viscometer. The breaking force and abrasion resistance of yarn sized under different rheological conditions by changing the temperature of sizing were examined. Measurement results show that by changing the size temperature from 50 °C to 80 °C the breaking force of the yarn mostly increased too. A change in the size temperature affects the yarn abrasion resistance, but these changes do not follow the linearity of the breaking force either, which is expressed by a comparison of the synthetic sizing agents with the same concentrations.

Tags:

rheological properties of size, size viscosity, Newtonian and non-Newtonian
fluids, size concentration.

Citation:

Kovačević S, Mijović B, Grancarić AM. Influence of Rheological Size Parameters on Yarn Properties. FIBRES & TEXTILES in Eastern Europe 2012; 20, 4(93): 41-46.

Published in issue no 4 (93) / 2012, pages 41–46.

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