Open AccessInfluencing factors analysis of tensile properties of wool yarns with different proportions of polyamide blend
Author(s) -
Ioan Oana,
Oana Dorina,
Simona Tripa
Publication year - 2018
Publication title -
industria textilă
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 14
ISSN - 1222-5347
DOI - 10.35530/it.069.04.1437
Subject(s) - fineness , polyamide , ultimate tensile strength , elongation , wool , materials science , composite material , tenacity (mineralogy) , yarn , breaking strength
This paper presents a comparative analysis of three batches of wool yarns with different fineness, twists andcompositions and the way in which these characteristics influence the tensile properties of the yarns. We performed thetensile strength tests and the values for the following tensile characteristics were determined: breaking force, elongationat break, tenacity and the mechanical breaking work and were made the diagrams. Stroke for strength and elongationat break – the diagrams give us an idea on the distribution of weak sections along the yarn tested. In order to make thisanalysis we used the machine USTER® TENSOJET 4. The main conclusions drawn from this analysis are following:the breaking force of the yarns is mainly determined by the value of length density and only after that by the percentageof polyamide and the twisting value, elongation at break is primarily influenced by the percentage of polyamide from theyarns composition and only then by the yarns twisting degree, the toughest yarns are the ones with the smallestfineness, the mechanical work created when stretching the yarns depends mainly by the percentage of polyamide fromthe yarns composition, by the yarns fineness and only then by their twisting.