Spektroskopsko istraživanje otisnutih transparentnih podloga

undergraduate thesis

• Author: Neda Knežević
• Mentor: Vesna Džimbeg-Malčić (mentor)
• Committee member: Vesna Džimbeg-Malčić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2010-9-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Ideja rada bila je omogućiti upotrebu digitalnog fotoaparata kao kvantitativnog

laboratorijskog spektrometra za generiranje transmisijskih spektara, u svrhu ispitivanja

optičkih svojstava transparentnih tiskovnih materijala. Provedene eksperimentalne

metode ukazuju na mogućnost praćenja promjena jednakih reprodukcija na različitim

tiskovnim podlogama, što daje i uvid utjecajne uloge fizikalnih procesa na kvalitetu i

izgled otiska. Percepcija reproducirane boje i njezin ton determinirani su interakcijom

elektromagnetskog zračenja i otiska, koja prvenstveno ovisi o frekvenciji i kutu upadne

svjetlosti, a u velikoj mjeri i o vanjskim uvjetima, te tiskovnoj podlozi. Upadom

zračenja na tiskovnu podlogu, dio ukupne energije može biti propušten u drugo sredstvo

(τ), dio reflektiran (ρ), a dio apsorbiran u tvari (α), α+ρ+τ = 1 , pri čemu je kod

korištenih transparentnih tiskovnih podloga, faktor transmisije svjetlosti (τ>0) ključan

faktor koji utječe na kvalitetu percipiranog tona reprodukcije. U skladu s navedenim

područjem interesa, definiranim kroz monitoriranje strukture, svojstava te meñuodnosa

korištenih materijala (tiskovne podloge, bojila, te ostalih elemenata u tisku), dobiveni su

rezultati ispitivanja promatrani u okvirima osnovnih zakonitosti spektrometrije.

Abstract (english)

The leading idea of this project was to provide the use of digital camera as quantitative

laboratory spectrometer for recording transmission spectra, in order to examine the

optical properties of the transparent printing materials. Measurements of optical

properties of transparent printing materials indicate the possibility of monitoring

changes and differences similar reproductions printed on different substrates, which

provides insight and influential role of physical processes on the quality of prints.

Perception of reproduced color and its tone are determined with the interaction of

electromagnetic radiation and prints, which primarily depends on the light wavelength

and the angle of incident light, as well as largely about external conditions and the

printed substrate. Incoming radiation on the printing substrate is partly transmitted,

which depends on substrate optical properties. Transmission of light is a key factor that

affects the reproduction appearance of transparent prints (transmission coefficient > 0).

In accordance with the above-defined area of interest, detreminated through the

monitoring of the structure and properties of used materials, the examed results are

observed in the area of basic spectrometry principles.

• Keywords: spektroskopsko istraživanje; transparentne podloge; spektrometrija; svjetlost
• Language: croatian
• URN:NBN: urn:nbn:hr:216:848315
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-16 21:08:43