Utjecaj temperature na čitljivost QR kodova otisnutih termokromnim bojama

undergraduate thesis

• Author: Bernard Strčić
• Mentor: Maja Strižić Jakovljević (mentor)
• Committee member: Sanja Mahović Poljaček (član povjerenstva)
• Committee member: Maja Strižić Jakovljević (član povjerenstva)
• Committee member: Sonja Jamnicki Hanzer (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2023-2-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Pametne oznake (engl. Smart Tags) su funkcionalni elementi koji prenose informacije i

kombiniraju 2D barkodove sa senzorima okoline. Mogu se primijeniti na proizvode, poput

paketa, na ekonomičan način bez značajnog povećanja cijene proizvoda. Jedna važna

značajka pametnih oznaka je da se mogu aplicirati na proizvode na brzim pokretnim

trakama, što ih čini prikladnima za korištenje s robom široke potrošnje. Ove su oznake

osjetljive na uvjete okoline i mogu biti jedinstvene, što im omogućuje pružanje usluga s

obzirom na dati kontekst. U kontekstu mobilnih uređaja, Smart Tag je mali bežični uređaj

koji se može priključiti na fizičke objekte i pokrenuti radnje ili pružiti informacije kada je u

blizini pametnog telefona ili drugog uređaja. Pametne oznake imaju različite primjene,

uključujući upravljanje zalihama, praćenje lokacije i sigurnost.

Tehnologije koje omogućuju ove pametne oznake mogu koristiti 2D bar kodove,

funkcionalne boje kao što su termokromne i fotokromne boje te tiskane vizualne indikatore.

Za potrebe ovog rada 2D kodovi otisnuti su termokromnim bojama s različitim

temperaturama aktivacije (TA), u tehnici sitotiska. Otisnuti 2D kodovi aktivirani su u

definiranom temperaturnom rasponu oko TA te očitani skeniranjem mobilnog telefona.

Kolorimetrijska svojstva termokromnih boja također će se mjeriti unutar ovog temperaturnog

raspona. Cilj ovog rada je odrediti temperaturni raspon u kojem određena termokromna boja

daje čitljive 2D kodove.

Abstract (english)

Smart Tags are functional elements that transmit information and combine 2D barcodes with

environmental sensors. They can be applied to products, such as packages, in an economical

way without significantly increasing the price of the product. One important feature of Smart

Tags is that they can be applied to products on high-speed conveyor belts, making them

suitable for use with various consumer goods. These tags are sensitive to environmental

conditions and can be unique, allowing them to provide services with respect to a given

context. In the context of mobile devices, a Smart Tag is a small wireless device that can be

attached to physical objects and trigger actions or provide information when it is in the

vicinity of a smartphone or other device. Smart Tags have a variety of applications,

including inventory management, location tracking, and security.

The technologies that enable these smart labels include 2D barcodes, functional inks such as

thermochromic and photochromic inks, and printed visual indicators. This paper deals with

the printing of 2D codes using thermochromic inks with different activation temperatures

(TA) by screen printing technique. The printed 2D codes will be exposed to a defined

temperature range around TA and read by scanning with a mobile phone. The colorimetric

properties of thermochromic inks will also be measured within this temperature range. The

aim of this paper is to determine the temperature range in which a certain thermochromic ink

results in readable 2D codes.

• Keywords: termokromne boje; QR kodovi; boje na bazi leuko bojila; aktivacijska temperatura; Smart Tags
• Keywords (english): thermochromic inks; QR codes; leuco dyes; activation temperature; Smart Tags
• Language: croatian
• URN:NBN: urn:nbn:hr:216:650560
• 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 15:02:53