Eveness 1287 UPV

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=EmDO6sGUszA

Título: Eveness • • Descripción automática: In this video, the focus is on a crucial yarn characteristic known as yarn uniformity or evenness, which affects various yarn and fabric properties. The speaker explains that non-uniformity in yarn can arise from inherent variations in fibre properties such as fineness, twist, and strength. This uniformity is critical to evaluate because it can influence the production and use of textiles in processes like spinning, weaving, and knitting, as well as final properties including strength, dye absorption, abrasion resistance, and fabric drape. • The video also discusses the challenges in producing completely regular yarn due to the natural lack of homogeneity in fibres. Consequently, the industry seeks advanced yarn monitoring systems for quality control during production. Traditional visual methods are mentioned as a means to assess yarn quality, highlighting defects like thick and thin areas, neps, and hairiness. Modern systems frequently utilize capacitive or optical sensors to measure mass per unit length variations, quantified by the coefficient of variation (CV). The speaker concludes by showing visual references for yarn evenness assessment and expresses gratitude for the viewers' attention. • Autor/a: Díaz García Pablo • Curso: Este vídeo es el 12/87 del curso MOOC Advanced technologies for textile quality control. Artificial Vision. • MOOC Advanced technologies for textil... • Inscríbete en: https://upvx.es/courses/course-v1:Ing... • • Universitat Politècnica de València UPV: https://www.upv.es • Más vídeos en: / valenciaupv • Accede a nuestros MOOC: https://upvx.es • #evenness #yarn #fabrics

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