Spreminjanje barve prosojnih površinskih sistemov v interieru : diplomsko delo (visokošolski strokovni študij)

Kričej, Borut (author), Petrič, Marko (mentor), Tišler, Vesna (reviewer)

Prosojne površinske sisteme smo za 48 mesecev izpostavili normalni fluoroscenčni svetlobi in popolni temi v interieru. S kolorimetrom smo merili spremembo barve po v naprej določenih časovnih intervalih. Analiza barvnih sprememb je pokazala, da se barva večine prosojnih površinskih sistemov v interieru prekomerno spremeni že v 1. do 3. mesecu. V večini primerov so vzorci potemneli in porumeneli. Barva sistemov se je spreminjala tudi v temi. Premazni sistemi (poliuretan, naravna olja) na podlagi so skoraj pri vseh vzorcih povečali barvno obstojnost celotnega površinskega sistema. Glede na časovni potek barvnih sprememb smo uspeli prepoznati/identificirati 4 značilne skupine časovne odvisnosti barvnih sprememb. Le-te omogočajo, da na osnovi meritev koordinat barve L*, a*, b* in analize barvnih sprememb, v času trimesečne izpostave svetlobi površinske sisteme pohištva razvrstimo v eno od 4 značilnih skupin in napovemo nadaljnje spreminjanje barve.

• Language: Slovenian
• Keywords: prosojni površinski sistemi, les, sprememba barve, CIEL*a*b*
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [B. Kričej]
• Year: 2006
• Number of pages: XI, 80 f., [27 f. pril.]
• PID: 20.500.12556/RUL-122
• UDC: 630*829.1
• COBISS.SI-ID: 1415049
• Publication date in RUL: 11.07.2014

Secondary language

• Language: English
• Title: Colour changing of transparent coating systems in interior : graduation thesis (higher professional studies)

Abstract

Transparent coating systems were exposed for 48 month to the normal fluorescent light or complete darkness in interior. In defined time intervals, colour changes were measured. The analyses of colour changes showed that the colour of most transparent coating systems changed substantially in 1st up to 3rd month. In most cases the samples became darker and yellowish. The colour of coating systems was changing also in darkness. In almost all cases, the coatings (polyurethanes, natural oils) increased the colour stability of the transparent coating systems. Regarding the time course of colour changes, 4 characteristics groups of time dependent colour changes were identified. By measuring L*, a*, b* colour coordinates and analysing colour changes in the exposure period of 3 months, the coating systems of furniture can be sorted out in 1 of 4 characteristic groups, and the subsequent colour changes of coating systems predicted.

• Keywords: transparent coating systems, wood, colour change, CIEL*a*b*