Title Kompresijska svojstva netkanog tekstila Title (english) Compressional properties of nonwoven fabrics Author Petar Vidaković Mentor Dragana Kopitar (mentor)Committee member Ružica Brunšek (predsjednik povjerenstva)Committee member Dragana Kopitar (član povjerenstva)Committee member Ivana Schwarz (član povjerenstva)Granter University of Zagreb Defense date and country 2019-07-03, Croatia Scientific / art field, TECHNICAL SCIENCES Abstract U cijelom svijetu se proizvodnja i prodaja netkanog tekstila kontinuirano povećava. U početku proizvodnje, netkani tekstil bio je ekonomski isplatljivija zamjena za tradicionalni tekstil, gdje se dugo smatralo da se od njega mogu proizvoditi samo jeftiniji proizvodi niske kvalitete. Razvojem tehnologije kemijskog ispredanja vlakana, razvila su se umjetna vlakna sa značajno boljim svojstvima od prirodnih a time i s većom primjenom. Kombinacijom različitih procesa proizvodnje i različitim sirovinama nastali su proizvodi s potpuno novim svojstvima koja se završnim obradama mogu dodatno unaprijediti. Netakni tekstil ima široki raspon svojstva, odnosno može biti mekan, elastičan, tvrd, krut, ili imati kombinirana svojstva, može biti tanak kao papir i debeo prema potrebi, a i dalje imati veliku čvrstoću. Može biti velikih i malih dimenzija i proizveden procesima ljepljenja, zagrijavanja ili šivanja.
Cilj diplomskog rada je istraživanje ponašanje različitih vrsta netkanih tekstila na tlačno djelovanje sile. Odabrani uzorci grupirani su po načinu proizvodnje u 7 grupa. Provedena su ispitivanja mase i debljine uzoraka te ponašanje netkanog tekstila na stlačivost putem dvije metode. Stlačivost netkanog tekstila ispitana je eksperimentalnom metodom pomoću Tracker progama te na debljinomjeru prema normi ISO 9073-2:1995. Rezultati ponašanja uzoraka na djelovanje vlačne sile i oporavka nakon djelovanja vlačne sile, grafički su prikazani sa odgovarajućom logaritamskom krivuljom za kompresiju i opravak netkanog tekstila. Iz uočenih promjena i ponašanja materijala iz može se zaključiti da je promjena u debljini manja na uzorcima netkanog tekstila koji imaju veću masu jedinici površine. Iz tablice logaritamske regresijske jednadžbe i koeficijent korelacije kompresijskog i dekompresijskog ciklusa netkanog materijala možemo zaključiti da je moguće predvidjeti ponašanje materijala s obzirom na njegovu gustoću.
Abstract (english) World-wide nonwoven fabric production and sales continuously grows. In the beginning of production, nonwoven textile was a cheaper alternative for more traditional textile and for long time was thought that nonwoven textile can be used only to produce inferior quality products. The fibre spinning technology development has given man-made fibes with significantly better properties and application than natural fibres. Combining different production processes along with different raw materials created products had improved properties which can be further improved with finishing processes. Nonvowens have a wide range of properties, it can be soft, elastic, hard, solid, or have combined properties, it can be thin as paper and thick as needed, but still have high tensile strength. Its dimensions can be large and small and can be made by gluing, heating or sewing.
The aim of the paper is to study the behavior of different types of nonwoven fabrics on the pressure force. The selected samples are grouped according to their production method in 7 groups. The mass per unit area and thickness were tested, while two methods for compressive behavior were used. All samples were tested using the experimental method using open source Tracker program and on Hess Thickness Gauge according to standard ISO 9073-2: 1995. The results of the sample behavior on the effect of compression and recovery are graphically described accompanied by the corresponding logarithmic curve for compression and recovery of nonwoven fabrics. From the observed changes and behavior of the nonwoven fabrics it can be concluded that the change of thickness is less on nonwoven fabrics of higher mass per unit area. According to the logarithmic regression equations and correlation coefficients of the compression and decompression cycle of nonwoven fabrics, it can be conclude that it is possible to predict the behavior of the nonwoven fabrics regard to its density.
Keywords
polipropilensko vlakno
poliestersko vlakno
netkani tekstil
grebenanje
iglanje
kalandriranje
debljina
kompresija
oporavak nakon kompresije
Keywords (english)
polypropylene fibers
polyester fibers
nonwoven fabrics
carding
needling
calendering
thickness
compression
compression recovery
Language croatian URN:NBN urn:nbn:hr:201:988784 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, Textile Chemistry, Materials and Ecology Type of resource Text File origin Born digital Access conditions Access restricted to students and staff of home institution Terms of use Created on 2020-10-01 13:20:23
