Dijital Baskı Sisteminde Farklı Tramlama Yöntemlerinin Baskı Kalitesine Etkisinin İncelenmesi

Öz

Dijital baskı, ileri baskı teknolojileri ile bilgisayar ortamında hazırlanan tasarım ve fotoğrafların farklı malzemeler üzerine kaliteli ve hızlı bir şekilde basılması işlemidir. Günümüzde etkinliğini artıran dijital baskı sistemi, kurulduğu ilk yıllardan itibaren teknoloji ile büyük adımlar atmış ve son on yıldır sektörde söz sahibi olmaya başlamıştır. Tasarımı ürün haline getirmede ofset baskı sistemine alternatif olan dijital baskı, üretim verimliliği, maliyet ve kalite açısından önemli gelişmeler sergiliyor. Ofset, dijital baskı makinelerinde gelişen renk verimliliği ile flekso baskı ile rekabete girmiştir. Dijital baskı makineleri ile kaliteli ve farklı uygulamalar yapılabilmektedir. Bu (perdeleme) işleminin gerçekleştirilebilmesi için sistemde kullanılan cihaz ve makinelerin görülebildiği veya üretebildiği renk evreninin sınırlarının bilinmesi gerekmektedir. Bu çalışmada, dijital baskıda kullanılan ekran yöntemlerinin seçimi değiştirilerek renkler ile renk tutarlılığı arasındaki fark ve renk değerleri, nokta kazancı gibi temel ölçümler değerlendirilmiştir. Tarama yapısı değişkeninin neden olduğu farklılıklar grafik ve tablolarla gösterilmiş ve önerilerde bulunulmuştur. Dijital baskıda eleme yapılarındaki değişimin nokta şişmesi, yoğunluk ve renkte farklılıklar yarattığı tespit edilmiştir.

Anahtar Kelimeler

• Dijital Baskı
• nokta kazancı
• renk
• baskı kalitesi

Investigation of the Effect of Different Screening Methods on Print Quality in Digital Printing System

Öz

Digital printing is the process of printing the designs and photos prepared in computer environment with advanced printing technologies on different materials in a high quality and fast way. The digital printing system, which is increasing its effectiveness today, has taken great steps with technology since the first years of its existence and has started to have a voice in the sector for the last ten years. The digital printing, which is an alternative to the offset printing system in making design a product, exhibits significant improvements in terms of production efficiency, cost and quality. Offset has become competitive with flexo printing with the developing color efficiency in digital printing machines. High quality and different applications can be made with digital printing machines. In order to achieve this (screening) process, it is necessary to know the boundaries of the color universe that can be seen or produced by the devices and machines used in the system. In this study, the difference between colors and color consistency and basic measurements such as color values, dot gain were evaluated by changing the selection of screen methods used in digital printing. The differences caused by the screening structure variable have been shown with graphics and tables, then suggestions have been made. It has been determined that the change in the screening structures in digital printing creates differences in dot swelling, density and color.

Anahtar Kelimeler

• Digital Printing
• color
• dot gain
• printing quality

Kaynakça

1. [1] Kadonaga, M., Recent Progress of Electrophotograpy Simulations. NIHON GAZO GAKKAISHI, Journal of the Imaging Society of Japan, 57(6), 654-661, (2018).
2. [2] Chiang, P. J., Khanna, N., Mikkilineni, A. K., Segovia, M. V. O., Suh, S., Allebach, J. P., ... & Delp, E. J. Printer and scanner forensics. IEEE Signal Processing Magazine, 26(2), 72-83, (2009).
3. [3] He, G., & Li, Y. Study on the Development of Toner Xerography Digital Printing Technology. In IFToMM International Conference on Mechanisms, Transmissions and Applications (pp. 576-585). Springer, Singapore, (2019).
4. [4] Kipphan, H. (Ed.), Handbook of print media: technologies and production methods. Springer Science & Business Media, (2001).
5. [5] Arney, J. S., 2 of Image Quality. Color Desktop Printer Technology, 31, (2018).
6. [6] Kazlauciunas, A., Photorealistic ink‐jet digital printing–factors influencing image quality, image stability and print durability. Coloration Technology, 126(6), 315-324, (2010).
7. [7] Rimai, D. S., Brown, K., Zaretsky, M. C., Lofftus, K., Aslam, M., Fowlkes, W. Y., & Weiss, D. S., The role of adhesion in electrophotographic digital printing. Journal of adhesion science and technology, 24(3), 583-617, (2010).
8. [8] Liu, Y. F., Guo, J. M., & Lin, S. C., Multi-mode Halftoning Using Stochastic Clustered-Dot Screen. In International Conference on Frontier Computing (pp. 423-431). Springer, Singapore, (2017, July).

9. [9] Yang, C. L., Chien, C. H., Lin, Y. P., & Chien, C. H., Tone Curve Compensation of Multiple Color Halftoning Screen Printing for Heterogeneous Fabrics. Journal of Imaging Science and Technology, (2020).
10. [10] Huang, W. E., Liu, T., Bengtson, K., & Allebach, J., Monochrome hybrid, multilevel, halftone screen with unequal spatial resolution for a low-cost electrophotographic printer. Electronic Imaging, 2018(16), 428-1, (2018).
11. [11] Ural, E., Özomay, Z., & Özdemir, L., Determination of the effect of palm oil ink on print quality. Mus Alparslan University Journal of Science, 6(1), 533-537, (2018).
12. [12] Kurt, M. B., Mumcu, Y. K., & Özdemir, L., Estimation Of Screen Density According To Different Screening Methods With Artificial Neural Network Method In Flexo Printing System. Politeknik Dergisi, 21(3), 575-580, (2018).
13. [13] Özomay, Z., Aydemir, C., & Özakhun, Ş. C., Determination Of The Most Suitable Option For Production With Uncoated Papers In Offset Printing By Multi-Criteria Decision Making Method. Muş Alparslan Üniversitesi Fen Bilimleri Dergisi, 7(2), 667-672, (2019).
14. [14] Özomay, M., & Akalın, M., Optimization of Fastness Properties with Gray Relational Analysis Method in Dyeing of Hemp Fabric with Natural and Classic Mordant. Journal of Natural Fibers, 1-15, (2020).
15. [15] Köse, E., & Şahinbaşkan, T., Renk yönetiminde kullanılan standart ICC profillerinin Türkiye’de oluşturulmuş bazı profiller ile karşılaştırılması. Politeknik Dergisi, 11(4), 365-371, (2008).
16. [16] Itrić, K., Modrić, D., Milković, M., & Divjak, A., Application of gradient method for separately analyzing optical and mechanical dot gain of electrophotography prints. Nordic Pulp & Paper Research Journal, 34(4), 534-539, . (2019).
17. [17] Kriss, M. A., Spectral model of an electro-photographic printing system. In Color Imaging XVI: Displaying, Processing, Hardcopy, and Applications (Vol. 7866, p. 786611). International Society for Optics and Photonics, (2011, January).
18. [18] Şahin, C., Özomay, Z., Keskin B., Gazete kağıdında baskı basıncının nokta kazancına etkisinin değerlendirilmesi, Ejovoc (Electronic Journal of Vocational Colleges) 3 (3), 121-128, (2013).