Kemijska stabilnost otisaka sa termokromnim bojama u ovisnosti o tiskovnoj podlozi

master's thesis

• Author: Ivona Kračun
• Mentor: Ivana Bolanča Mirković (mentor)
• Committee member: Dubravko Banić (član povjerenstva)
• Committee member: Ivana Bolanča-Mirković (član povjerenstva)
• Committee member: Rahela Kulčar (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2020-9-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Ovo istraživanje nastavlja se na ono napravljeno u završnom radu pod nazivom

„Utjecaj kemijskog sastava tiskovne podloge na stabilnost termokromne boje“ u

kojem je raspravljen utjecaj ubrzanog starenja na kolorimetrijska svojstva boje

aplicirane na dvije različite papirne podloge različitog kemijskog sastava. U

ovom radu planira se ispitati kemijska stabilnost dviju termokromnih boja. Uzorci

se razlikuju po tehnici tiska sa kojom su otisnuti, načinu sušenja, po

termokromnim bojama različitih temperatura aktivacije te različitim papirnim

podlogama. Nakon otiskivanja na uzorcima je proveden test kemijske stabilnosti

prema ISO standardu u području grafičke industrije koji definira supstance za

ispitivanje kemijske stabilnosti. U ovom radu koristili su se u svrhu ovog

ispitivanja voda, etanol, ulje i lužina. Nakon provedenog testa uzorci su

analizirani vizualno te izmjereni spektralnim fotometrom kako bi se obradili

kolorimetrijski radi utvrđivanja degradacije otisaka te da li je termokromni efekt

promjene boje i dalje prisutan što je ključan faktor termokromnih otisaka koji

imaju funkciju indikatora na proizvodima.

Abstract (english)

This research continues the one made in the final paper entitled "Influence of

the chemical composition of the printing substrate on the stability of

thermochromic ink" in which the influence of accelerated aging on the

colorimetric properties of ink applied to two different paper substrates of

different chemical composition. In this paper, it is planned to examine the

chemical stability of two thermochromic inks. The samples differ in the printing

technique with which they are printed, the method of printing, the

thermochromic inks of different activation temperatures and different paper

substrates. After printing on the samples, a chemical stability test was

performed according to the ISO standard in the field of graphic industry, which

defines substances for chemical stability testing. Water, ethanol, oil and alkali

were used in this study for this purpose. After the test, the samples were

analyzed visually and measured with a spectral photometer to be processed

colorimetrically to determine the degradation of prints and whether the

thermochromic effect of color change is still present, which is a key factor in

thermochromic prints that have an indicator function on products.

• Keywords: termokromne boje; stabilnost; degradacija; tiskovna podloga
• Keywords (english): thermochromic inks; stability; degradation; printing substrate
• Language: croatian
• URN:NBN: urn:nbn:hr:216:375134
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-18 23:03:13