Assoc. prof. Eng., PhD. Costică SAVA, Lecturer Eng., PhD. Mariana ICHIM
Rezumat
In această lucrare a fost studiat efectul vitezei tamburelor de fricţiune şi al vitezei cilindrilor de alimentare asupra proprietăţilor firelor filate prin fricţiune DREF-2 cu miez din fir de iută şi înveliş de lână. Pe baza rezultatelor se poate trage concluzia că pe măsură ce viteza cilindrilor alimentatori creşte, densitatea de lungime, diametrul, forţa de rupere şi alungirea la rupere a firelor DREF scad. Creşterea vitezei tamburelor de fricţiune conduce la scăderea diametrului firelor DREF şi nu are un efect bine definit asupra densităţii de lungime şi a alungirii la rupere. Presupusa creştere a forţei de rupere a firelor DREF odată cu creştere vitezei tamburelor de fricţiune nu a fost întotdeauna confirmată.
Cuvinte cheie: filare prin fricţiunefir cu miezmiez din fir de iutăînveliş din lânăfir pentru covoare
Abstract
In this research work, the effect of drum speed and inlet roller speed on the properties of wool covered/jute yarn core DREF-2 friction yarns has been studied. From the results it can be concluded that as inlet roller speed increases the linear density, diameter, breaking strength and elongation at break of DREF yarns decrease. The increase of friction drum speed leads to a decrease in DREF yarn diameter and it does not have a definite effect on linear density and breaking elongation. The expected increase in DREF yarn breaking strength with the increase in friction drum speed has not always been confirmed.
Keywords: friction spinningcore-spun yarnjute yarn corewool sheathrug yarn
Din același număr
- MANUFACTURING AND INVESTIGATION OF THE SEERSUCKER WOVEN FABRICS
- NANOART AS MULTIDISCIPLINARY OF NANOTECHNOLOGY WITH NOVEL ART FOR FASHION AND INTERIOR DESIGN
- INNOVATIVE JUTE PRODUCTS FOR TECHNICAL APPLICATIONS
- ANALYSIS OF MAIN CHARACTERISTICS OF FABRICS USED IN PARACHUTE MANUFACTURING
- AN INNOVATIVE HARNESS/CONTAINER ASSEMBLY FOR SPORT PARACHUTES
- THE INFLUENCE OF REACTIVE DYES ON THE ULTRAVIOLET PROTECTION FACTOR OF THE KNITTED COTTON FABRICS
- BEHAVIOUR OF COATED MAGNETIC WOVEN TEXTILES SUBJECTED TO HAND-WASHING
- THE ANALYSIS OF THE QUALITY CHARACTERISTICS OF FABRICS MADE OF WOOL YARNS USING THE STATISTICAL CORRELATION METHOD
- CONSIDERATIONS REGARDING PROCESSING OF CONDUCTIVE TEXTILE WASTE
- STUDY OF TENSIONAL PROPERTIES OF GORETEX WATERPROOF MEMBRANES
- FUNCTIONAL ANTISTATIC AND DRAPING PROPERTIES OF THE LITURGICAL CLOTHING ENSEMBLE
- PARAMETERS OF THERMO-PHYSIOLOGICAL COMFORT OF THE LITURGICAL CLOTHING STRUCTURE