Definicija crne boje u digitalnom tisku

master's thesis

• Author: Iva Sirotić
• Mentor: Igor Zjakić (mentor)
• Committee member: Igor Zjakić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2009-5-00, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

Izlaganje koje slijedi bavi se problematikom reprodukcije crne boje u tehnikama digitalnog

otiskivanja.

Uz opsežnu teorijsku osnovu, i objašnjenja, glavni predmet eksperimentalnog dijela je

subjektivno i objektivno mjerenje kvadrata na kojima su otisnute različito zamiješane crne

boje. Printalo se u elektrofotografiji i ink jet tehnologiji na dvije različite podloge,

specijaliziranoj podlozi za svaku tehnologiju i običnom uredskom papiru.

Subjektivni dio eksperimenta proveden je među 10 muškaraca i 10 žena u dobi od 18 do 50

god, prosječno zdravog vida; a objektivni dio svodio se na mjerenje L* a* b* vrijednosti

otisaka spektrofotometrom. Zadatak za ispitanike je bio crne kvadratiće poredati od najcrnjeg

prema najmanje crnom, u svakoj tehnici zasebno. Dobiveni rezultati uspoređeni su s onima

dobivenim mjerenjem spektrofotometrom.

Zbog ne postojanja dosad definirane standardne preporučljive vrijednosti za optimalno

miješanje crne boje iz CMYK palete niti za elektrofotografiju niti za ink jet, kao referentna

točka za izračunavanje vrijednosti ΔE za dobivene ekstreme, uzeta je srednja vrijednost

spektrofotometrijskih mjerenja za elektrofotografiju i ink jet.

Konačni rezultati predstavljaju optimalni odnos komponenata iz CMYK palete u

elektrofotografiji i ink jet tehnologiji, na specijaliziranim podlogama za određene tehnike, kao

i na običnim uredskim papirima.

Pretpostavlja se da će rezultati ovog eksperimenta i prateće elaboriranje o istima biti korisna

podrška svakom tiskaru koji se u svom radu susreće sa problemima reprodukcije crne boje

prilikom otiskivanja u digitalnim tehnikama, ali također i poticaj za daljnje eksperimente

sličnog tipa, sa procesnim i drugim bojama, i u ostalim tehnikama tiska bez pritiska.

Abstract (english)

Demonstration which follows deals with the problematics of reproduction of black color in

digital printing techniques.

In addition to a comprehensive theoretical basis, and explanations, a major experimental

section is subjective and objective measurement of the squares on which they are printed

differently mixed black colors. It was printed in electrophotography and ink jet technology on

two different substrates, the specialized substrate for each technology and ordinary office

paper.

Subjective part of the experiment was conducted among 10 men and 10 women aged from

18 to 50 years, with an average healthy vision; and objective part of the experiment

consisted of the measurement of L * a * b * values of the prints with the spectrophotometer.

The task for respondents was to sort the black boxes from the blackest to at least black, in

each technique separately. The results were compared with those obtained by measuring

with spectrophotometer.

Due to the existence of so far not defined the standard recommended values for optimal

mixing black color from the CMYK palette, neither for electrophotography nor for ink jet, as a

reference point to calculate the value of ΔE obtained for the extremes, taken the average

value of spectrophotometric measurements for electrophotography and ink jet.

Final results represent the optimum relation of components of the CMYK palette in

electrophotography and ink jet technology, on the specialized substrates for specific

techniques, as well as ordinary office paper.

Assumed that the results of this experiment and supporting elaboriration about them to be

useful support for any print shop which in it work meets with the problems of reproduction of

black color when printing in digital techniques, but also as a stimulus for further experiments

of similar type, with the process, and other colors, as well in other non impact printing

techniques.

• Keywords: digitalni tisak; reprodukcija boje; psihologija boja; crna boja
• Language: croatian
• URN:NBN: urn:nbn:hr:216:255227
• 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: 2024-04-17 10:21:58