Improving the properties of woollen yarns and fabrics using spandex

Document Type : Original Article

Authors

1 Assistant professor-Sppinning, weaving & knitting Dep. – Faculty of Applied Arts- Benha University

2 Department of Spinning, Weaving & Knitting, Faculty of Applied Arts, Damanhour University

3 , Chemical industries research institute, National Research Centre.

Abstract

Filaments are often regarded as the fundamental constituent that comprises threads of various types. While natural fibers serve as the foundation, the emergence of synthetic fibers is widely regarded as a pivotal factor that significantly influenced the advancement of the textile industry. Both types of fibers are composed of macromolecules or linear polymers, which are comprised of multiple repeats of simple monomers. Natural animal raw materials are often seen as costly and not easily accessible, resulting in significant financial expenditures. Therefore, it was imperative to consider potential resolutions that effectively address these obstacles. The consideration of blending wool with various industrial raw materials was deemed essential in order to attain novel qualities that align with the intended application and consumer preferences, while also ensuring economic viability. The objective of our work is to create yarns that incorporate synthetic fibers in order to attain a favorable economic outcome. Furthermore, enhancing the quality of mixed woolen yarns has a direct impact on their functional performance. Our research involves the combination of wool, polyacrylic, and Lycra in specific proportions. Specifically, we blend 25% wool material with 75% polyacrylic material, and then add an additional 5% Lycra to this blend. This process allows us to create three distinct variations. The experimental findings demonstrated a significant augmentation in the tensile strength, as well as an increase in the percentage of regularity. There was an improvement in the association between the count and the elongation percentage. Furthermore, we weaved 6 plain fabrics 3 of them were weaved from the blend of 75% wool 25% acrylic the other 3 were weaved from the second blend of 75% wool 25% acrylic 5% lycra. We examined those 6 fabrics for weight, tensile strength, elongation, friction, wrinkle resistance and absorption. The specimen from the blend of 75% wool 25% acrylic 5% lycra with the count of 20/1 had shown the highest results for all examination

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