Upravljanje sa bojilima u proširenom ultravioletnom, vizualnom i infracrvenom spektru Management of the dyes in the extended ultraviolet, visual and infrared spectrum Ivana Žiljak Stanimirović, Vilko Žiljak, Branka Morić Sažetak Razvijena je metoda određivanja blizanaca bojila. Imaju zajedničko svojstvo. U vizualnom spektru se jednako vide. Blizanci se različito ponašaju u instrumentalnim promatranjima u okolini vizualnog spektra. Postavljamo „Infracolor management“, teoriju UV / Infracrvene separacije s novim procedurama za sigurnosni tisak. Konvencionalni color management se bavi s bojama i bojilima samo u vizualnom spektru koji pokriva 400 do 700 nm. Mnoga bojila se različito odazivaju u susjednim područjima. Ultravioletna bojila i infracrvena bojila su se odvojeno koristila u sigurnosnoj grafi ci. U članku se razmatra upravljanje bojilima koja imaju pozitivno odazivanje u sva tri, spomenuta, spektra. F fl urescentna bojila imaju dobar odaziv u NIR spektru. Uveli smo mjeru Z kao veličinu apsorpcije svjetla u bojilima, valne duljine na 1000 nm. Središnja tema je kreiranje tiskovine koja se sastoji od tri različita grafi čkih oblika. Svaki je prepoznatljiv u jednom od spomenutih područja. Teorija je zasnovana kao CMYFIR sustav refl eksije svjetla u „proširenom grafi čkom spektru“. Potrebna je visoka preciznost u upravljanju s takovim bojilima. Cilj je sakriti početno dizajnirane grafike. Svaka grafika se može vidjeti samo u svom, projektiranom stanju. Postavili smo novu proceduru u sigurnosnoj tiskarskoj praksi. Ključne riječi: ultravioletne boje, infracrvene boje, cmyfir separacija Abstract Th e method to determine the twins dyes has been developed. Twins dyes have a common characteristic in visual spectrum. Th e twins behave diff erently in instrumental observations in surrounding of the visual spectrum. We set “Infracolor management”, the theory of UV / Infrared separation with the new procedures for security printing. Conventional color management deals with colors and dyes only in the visual spectrum which covers 400 to 700 nm. Many dyes are responding diff erently in neighboring areas. Ultraviolet dyes and infrared dyes were used separately in security graphics up to now. Th e paper discusses the management of dyes which have positively respondance to all three previously mentioned spectrums. F fl urescent dyes have a good response in the NIR spectrum. We have introduced a Z measure as the size of the light absorption in dyes, with the wavelength of 1000 nm. The main issue is the creation of the press/printing, which consists of three diff erent graphical forms. Each form is distinctive in one of the mentioned areas. Th e theory is based as CMYFIR system of light reflection in the “expanded graphical spectrum.” High precision in management with these dyes is a must. The main goal is to hide initially designed graphics. Each graphic can be seen only in its own designed state. We set up a new procedure in the security printing practice. Keywords: ultraviolet dyes, infrared dyes, cmyfir separation |