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논문 기본 정보

자료유형
학술저널
저자정보
Young-Baeck Ha (Prinpia) Jung-Yoon Park (Kookmin University) Hyoung-Jin Kim (Kookmin University)
저널정보
한국펄프·종이공학회 펄프·종이기술 펄프·종이기술 제51권 제2호(통권 제187호)
발행연도
2019.4
수록면
108 - 120 (13page)
DOI
10.7584/JKTAPPI.2019.04.51.2.108

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초록· 키워드

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Present-day commercial printing is often accompanied with less quantity and more customization, as a response to the corresponding consumer demand of high quality and differentiation. One of the printing methods dealing with such features is the digital press, whose current trend greatly differs from that of traditional printing methods using liquid inkjet and solid toner.
In this study, the correlation between the characteristics of the digital printing paper and the color density of the printed material was analyzed through a comparison of the physical and optical characteristics and printability of five different digital printing paper samples. With respect to the printing quality of the five samples, the color density of printout influenced by color inks was confirmed to be related to their air permeability and roughness characteristics. Specifically, the color density was directly influenced by surface irregularities caused by paper roughness, for the same amount of ink applied. The same result was shown in the status of ink transfer, obtained by the optical image analysis.
In terms of printability, toner ink was better than inkjet, which could be explained with the amount of ink remaining on the surface of the printing paper: more ink remains on the surface of the paper using the inkjet than the solid-type (toner), due to wetting and capillary penetration into the porous digital printing paper. Additionally, the printthrough more often occurred on the liquid-type inkjet-based printout, due to the influence of density and air permeability of the paper. The trapping of printout was found to be related to adhesion between the ink molecules, and was rather irrelevant to the properties of the digital paper. Dot reproduction of the ink was better materialized when less liquid penetrates into the surface and when the internal structure of the paper was considered, as the amount of ink remains on the surface of the paper increased. The dot gain was seemingly due to wetting caused by the dispersion of the ink, when the amount of ink remaining on the surface of the paper was large enough.

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ABSTRACT
1. Introduction
2. Materials and Methods
3. Results and Discussions
4. Conclusions
Literature Cited

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UCI(KEPA) : I410-ECN-0101-2019-586-000666844