prikaz prve stranice dokumenta Propusnost navigator papira u funkciji vremena i temperature starenja
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undergraduate thesis
Propusnost navigator papira u funkciji vremena i temperature starenja
Zagreb: University of Zagreb, Faculty of Graphic Arts, 2011. urn:nbn:hr:216:316306
Eškinja, Stanko
University of Zagreb
Faculty of Graphic Arts

Institutional repository: Faculty of Graphic Arts Repository

Cite this document

Eškinja, S. (2011). Propusnost navigator papira u funkciji vremena i temperature starenja (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Graphic Arts. Retrieved from https://urn.nsk.hr/urn:nbn:hr:216:316306

Eškinja, Stanko. "Propusnost navigator papira u funkciji vremena i temperature starenja." Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, 2011. https://urn.nsk.hr/urn:nbn:hr:216:316306

Eškinja, Stanko. "Propusnost navigator papira u funkciji vremena i temperature starenja." Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, 2011. https://urn.nsk.hr/urn:nbn:hr:216:316306

Eškinja, S. (2011). 'Propusnost navigator papira u funkciji vremena i temperature starenja', Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, accessed 24 December 2024, https://urn.nsk.hr/urn:nbn:hr:216:316306

Eškinja S. Propusnost navigator papira u funkciji vremena i temperature starenja [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Graphic Arts; 2011 [cited 2024 December 24] Available at: https://urn.nsk.hr/urn:nbn:hr:216:316306

S. Eškinja, "Propusnost navigator papira u funkciji vremena i temperature starenja", Undergraduate thesis, University of Zagreb, Faculty of Graphic Arts, Zagreb, 2011. Available at: https://urn.nsk.hr/urn:nbn:hr:216:316306

Metadata
TitlePropusnost navigator papira u funkciji vremena i temperature starenja
AuthorStanko Eškinja
MentorŽeljka Barbarić-Mikočević (mentor)
Committee memberMiroslav Gojo (član povjerenstva)
Committee memberVesna Džimbeg Malčić (član povjerenstva)
Committee memberŽeljka Barbarić - Mikočević (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Graphic Arts
Zagreb
Defense date and country2011-9-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Graphic Technology
Abstract
U ovom radu provedena su ispitivanja na Navigator fotokopirnom papiru (80 g/m2). Za istraživanje se koristilo novo pakiranje kupa papira od 500 listova, gdje su uzimani listovi papira iz sredine i rezani na dimenzije 12,5 x 12,5 cm. Uzorci su izlagani različitim temperaturama i vremenskim intervalima. Uzorcima papira je odreĎen maseni udio vlage, pepela i kalcijevog karbonata te upojnost (Cobb test), koja se ispitivala na sitovoj i pustenoj strani. S istraživanjem se krenulo, jer je primjećeno da nakon otvaranja paketa papira i njihovim spremanjem u ormar za kasniju upotrebu dolazi do gubitaka nekih svojstava. Upojnost se znatno povećala, povećanjem temperature sa 30° C na 60° C, razlika očitana na obje temperature pri vremenu 8h iznosi 5,2 g/m2 za pustenu, tj. za sitovu 5,3 g/m2. Maseni udio pepela je ostao nepromjenjen ovisno o temperaturi što nam dokazuje da se unutar papira ništa drastično nije dogodilo, već možemo zaključiti da temperatura djeluje na skupljanje čestica papira, a zbog nedostatka vlage dogaĎa se da papir propusti.
Abstract (english)
Following research is show through Navigator photocopy paper (80 g/m2). For research we used new pack of 500 sheets of paper, where we took paper from the middle and than we cut them on dimensions 12,5 x 12,5 cm. Samples were exposed to diferent temperatures and diferent time intervals. Samples of paper we measured mass fraction of moisture, ash, Calcium Carbonate and absorption of paper ( Cobb test ), on top and wired side. We decided to make a research after we noticed that photocopy paper after opening its packaging and saving it in closet for later use it loses some of its properties. Results have shown us that absorption has risen up. Amount of ash depending of temperature hasn’t change. Ashes remained unchanged which proves that within paper nothing drastic has happened, so we can conclude that the temperature has effect on the shrinkage of paper particles and because a lack of moisture paper fails to absorb.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:216:316306
Study programmeTitle: Printing technology, course Technical - technological
Course: Graphic technology
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka grafičke tehnologije)
Type of resourceText
File originBorn digital
Access conditionsClosed access
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Created on2024-04-16 19:23:21