HIDDEN INFORMATION IN TWINS COLORANTS ON PACKAGING
| Autor: | Petar Miljković, Mensura Kudumović, Denis Jurečić, Aleksandra Bernašek Petrinec |
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| Jazyk: | chorvatština |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Polytechnic and design Volume 6 Issue 4 |
| ISSN: | 2459-6302 1849-1995 |
| Popis: | Miješanje procesnih bojila provodi se za digitalni tisak na kartonu s inkjet ploterom. U radu se objavljuju recepture sastava bojila koje se prezentiraju u parovima jednakih boja u vizualnom spektru. Familija svih boja s dualnim svostvima imaju jednake razlike ΔZ u bliskom infracrvenom spektru. Razlika apsorpcije svjetla na 900 nanometra je 0.14 U vizualnom spektru, blizanci dvaju bojila definiraju se kao boje s vrijednošću njihove razlike ΔE majom od tri. Rješenja s upotrebom blizanaca bojila u dvama spektralnima područjima su eksperimentalno testirana u tisaku na kutijama za ljekove. Kontrola kvalitete čitljivost skrivenih informacija izvodi se s novim minijaturnim infrared kamerama koje su priključene na prenosno tablet računalo. The mixing of process colorants is conducted on cardboard with an inkjet plotter. In the article recipes are published for colorant compositions which are presented in pairs of equal colors in the visual spectrum. Every color in the family of colors with dual properties has the same difference ΔZ in the near infrared spectrum. The difference in the absorption of light at 900 nanometers is 0.14. In visual spectrum, the twins of two colorants are defined as colors with the value of their difference ΔE less than 3. Solutions using twins of colorants in two spectra have been experimentally tested in the print on drug packaging. Quality control of the readability of the text is conducted with new infrared mini-cameras connected to a tablet. |
| Databáze: | OpenAIRE |
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