Ananasovo usnje

Atelšek, Žan (author), Rijavec, Tatjana (mentor)

V diplomskem delu so bile raziskane morfološke lastnosti ananasovih vlaken in izvedena primerjalna raziskava lastnosti ananasovega in poliuretanskega usnja. Iz ananasovega usnja sta bila izdelana dva unikatna galanterijska izdelka – torbica za prenosni računalnik in pasna torbica. Z raziskavo ananasovih vlaken, izločenih iz listov, je bilo ugotovljeno, da so tehnična vlakna zelo fina (debeline 24–64,2 µm), sestavljena iz elementarnih vlaken debeline 2,6–3,4 µm. Ananasovo usnje Pinatex® je vlaknovina iz ananasovih vlaken, premazana z biorazgradljivim polilaktidom z dodatkom poliuretana, ploščinske mase 506,25 g/m2, debeline 2,33 mm in gostote 0,234 g/cm3. V primerjavi s poliuretanskim usnjem primerljive ploščinske mase (545,19 g/m2) je bil Pinatex® za 1,9-krat debelejši in s tem bolj voluminozen od poliuretanskega usnja. Pinatex® je bil bolj tog in se v suhem bolj mečkal od PU-usnja. Hrbtna stran Pinatex® je bila vodovpojna, lična pa hidrofobna. Pinatex® je bil odlično odporen na drgnjenje, vendar je dosegel veliko nižjo natezno trdnost (33,2 MPa) kot primerjalno PU-usnje (82,4 MPa).

• Language: Slovenian
• Keywords: vegetativno usnje, ekološko usnje, patentno usnje, listno vlakno.
• Work type: Bachelor thesis/paper
• Organization: NTF - Faculty of Natural Sciences and Engineering
• Year: 2021
• PID: 20.500.12556/RUL-126343
• Publication date in RUL: 17.04.2021

Secondary language

• Language: English
• Title: Ananas leather

Abstract

In the diploma work were analysed morphological properties of pineapple fibres, compared were properties of pineapple leather with polyurethane leather and made two unique haberdashery products - a laptop bag and a belt bag. Pineapple technical fibres extracted from the leaves were very fine, with a diameter 24⠒64.2 μm, and composed from elemental fibres of 2.6⠒3.4 μm thickness. Piñatex® pineapple leather is a nonwoven made from pineapple fibres and coated with biodegradable polylactide with the addition of polyurethane. Its mass per unit area was 506.25g/m2, thickness of 2.33 mm and a density of 0.234 g/cm3. Compared to polyurethane leather with roughly the same mass per unit area (545.19 g/m2), Piñatex® was 1.9 times thicker and thus more voluminous than polyurethane leather. Piñatex® was stiffer and wrinkled more than PU leather when dry. The back side of the Piñatex® was water-absorbing and its face side was hydrophobic. Piñatex® had excellent abrasion resistance but much lower tensile strength (33.2 MPa) then the compared PU leather (82.4 MPa).

• Keywords: vegetative leather, organic leather, patented leather, leaf fibre