Rastezna svojstva projektiranih pređa i pletiva

master's thesis

• Author: Ana Ilić
• Mentor: Ivana Salopek Čubrić (mentor)
• Committee member: Vesna Marija Potočić Matković (predsjednik povjerenstva)
• Committee member: Ivana Salopek Čubrić (član povjerenstva)
• Committee member: Goran Čubrić (član povjerenstva)
• Committee member: Anita Tarbuk (član povjerenstva)
• Granter: University of Zagreb; Faculty of Textile Technology; (Department of Projecting and Management of Textiles); Zagreb
• Defense date and country: 2018-07-17, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Textile Technology; Textile-Mechanical Engineering

Abstract

Tema ovog diplomskog rada su rastezna svojstva pređe i pletiva različitih finoća i sirovinskog sastava. Za istraživanje rasteznih svojstava, korištene su češljane jednostruke pređe jednakog sirovinskog sastava – izrađene iz pamučnih vlakana, ali različite finoće (12, 14, te 20 tex). Iz navedenih su pređa izrađena kulirna glatka desno-lijeva pletiva, bez i s dodatkom elastanske pređe (6, 8 i 13%) U eksperimentalnom se dijelu ispituju njihova rastezna svojstva. Na dinamometru su ispitana rastezna svojstva pređa primjenom tri metode ispitivanja, te rastezna svojstva pletiva ispitana u suhom i mokrom stanju. Dodatno, pletiva su ispitana i primjenom metode probijanja kuglom, također u suhom i mokrom stanju. Prikazani rezultati mjerenja omogućili su donošenje zaključnih postavaka o međuovisnosti finoće pređe i rasteznih svojstava pređe, kao i o utjecaju primjene različitih metoda mjerenja na konačne rezultate. Vezano uz pletiva, pokazalo se da su pletiva rastezljivija u smjeru nizova, te je komentiran utjecaj finoće pređe i udjela elastanske pređe u strukturi pletiva na vrijednosti rasteznih svojstava u suhom i mokrom stanju.

Abstract (english)

The theme of this graduate thesis is tensile properties of yarns and knits of different fineness and different raw composition. For exploring tensile properties, combed single yarns were used, there are of the same raw composition but different fineness (12,14 and 20 tex). From those yarns, single jersey knits were made with different raw material composition, cotton and mixture of cotton and elastane (6,8 and 13%). Tensile properties were tested and their resultes were compared considering the fineness and raw material composition. Yarn tensile properties were tested with dynamometer applying three methods, and tensile properties of knits were tested in dry and wet condition. The results of tested yarns showed that tensile properties are higher with increasing fineness. The results of the measurements enabled conclusion-making regarding the interdependence of the yarn fineness and tensile properties, as well as the influence of the application of different measurement methods to the final results. Regarding the knitted fabrics, it was shown that those are more stretchable in the direction of wales. The influence of the yarn fineness and the share of the elastic yarn in the knitting structure on the values of tensile properties in dry and wet condition is commented.

• Keywords: Rastezna svojstva; pamučna pređa; elastanska pređa; prekidno istezanje; prekidna sila
• Keywords (english): tensile properties; cotton yarn; elastane yarn; breaking elongation; breaking force
• Language: croatian
• URN:NBN: urn:nbn:hr:201:438399
• Study programme: Title: Textile Technology and Engineering; specializations in: Clothing Engineering, Textile Design and Management, Industrial Textile Design, Industrial Clothing Design, Textile Chemistry, Materials and Ecology; Course: Textile Design and Management; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka tekstilne tehnologije i inženjerstva (magistar/magistra inženjer/inženjerka tekstilne tehnologije i inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2018-09-03 10:59:49