Primjeri primjene termokromnih boja na bazi tekućih kristala

undergraduate thesis

• Author: Marko Ivanković
• Mentor: Branka Lozo (mentor)
• Committee member: Branka Lajić (član povjerenstva)
• Committee member: Branka Lozo (član povjerenstva)
• Committee member: Mile Matijević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2016-9-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Termokromne boje mijenjaju obojenje pod utjecajem promjene okolne temperature, u području aktivacijske temperature same boje. Po vrsti nositelja obojenja termokromne boje se dijele na leukoboje i na boje na bazi tekućih kristala. Za razliku od termokromnih boja na bazi leukobojila, čija promjena tona boje može biti revezibilna ili ireverzibilna, promjena tona boje kod boja na bazi tekućih kristala je uvijek revezibilna. To znači da po prestanku djelovanja uzroka ton boje se vraća u prvobitno stanje i postupak se može ponoviti. Kod termokromnih boja na bazi tekućih kristala u temperaturnim područjima izvan aktivacijske temperature nema promjene obojenja, tj. to stanje je neobojeno.

U završnom radu predložiti će se razni primjeri primjene termokromnih boja na bazi tekućih kristala uz praktične prikaze i objašnjenja.

Abstract (english)

Thermochromic printing inks change their color under the influence of the surrounding temperature, temperature activation region of the ink in the activation temperature of the paint itself. There are two types of thermochromic printing inks; leuco-dye and liquid crystal based. Unlike leuco-dye based printing inks which can change color reversibly or irreversibly, the color change of liquid crystals is almost always reversible. This means that the color is returned to its original condition after heating/cooling and the procedure can be repeated. Outside the activation region liquid crystal printing ink is colorless. This thesis will propose various application examples with liquid crstal printing inks.

• Keywords: termokromne tiskarske boje; reverzibilnost; tekući kristali
• Keywords (english): Thermochromic printing inks; Temperature activation region; liquid crystals
• Language: croatian
• URN:NBN: urn:nbn:hr:216:184259
• 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: Open access
• Created on: 2024-04-16 17:15:28