Advanced Printing and Packaging Materials and Technologies by Ouyang, Yun

By Ouyang, Yun

Choice of chosen, peer reviewed papers from the 2014 third China educational convention on Printing and Packaging, October 24-25, 2014, Beijing, China. The 118 papers are grouped as follows: bankruptcy 1: colour and Optical technology and expertise; bankruptcy 2: snapshot Processing know-how; bankruptcy three: utilized details applied sciences in electronic Publishing; bankruptcy four: Printing Engineering expertise; bankruptcy five: Packaging Read more...

summary: selection of chosen, peer reviewed papers from the 2014 third China educational convention on Printing and Packaging, October 24-25, 2014, Beijing, China. The 118 papers are grouped as follows: bankruptcy 1: colour and Optical technology and know-how; bankruptcy 2: snapshot Processing expertise; bankruptcy three: utilized details applied sciences in electronic Publishing; bankruptcy four: Printing Engineering expertise; bankruptcy five: Packaging Engineering know-how; bankruptcy 6: nutrients Packaging and protection; bankruptcy 7: Printing and Packaging gear; bankruptcy eight: Paper and similar fabric know-how; bankruptcy nine: Ink and R

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Applied Mechanics and Materials Vol. 731 21 Conclusions A novel color constancy based spectral separation method for muti-ink printers was proposed and testified, the authers believe that such method could meet the need where color constancy is much more improtant than other color reproduction intents. 2012CB725302). References [1] J. J. ) [2] Y. Chen, in Proceedings of the 37th Annual ACM Symposium on Theory of Computing, Baltimore, MD, USA (2005). [3] Y. Chen,R. Berns, L. Taplin, F. Imai, in Proceeding of IS&T/SID Eleventh Color Imaging Conference, Scottsdale, Arizona, USA (2003).

In this condition our eyes would not be able to distinguish the differences. So the color separation results could meet the requirement of high-fidelity replication. In this work, color gamut was described for each cell, which improved the accuracy of the cell search; And the phenomenon of the emerge of singular point in color separation process was also greatly improved. Namely, the maximum color difference was controlled in a reasonable range. Conclusions The multi-color separation based on polynomial regression algorithm in this paper was a set of three color printing color separation models.

Therein, fi represents dot area of color cells, that is De Mitchell relation; X, Y and Z are final tristimulus values of colors after color sell composition; Xi, Yi, Zi (i=1,2……k) Applied Mechanics and Materials Vol. 731 33 are CIEXYZ tristimulus values of k Neugebauer primary colors. For CMYK four-color printing, k=24=16, that is, four-color Neugebauer model has 16 primary colors; nx, ny, nz are expansion correction factors of Young Nelson dots. 2. Therein, Rλ,i represents spectral reflectivity factor of i Neugebauer primary color; Rλ is spectral reflection factor of colors after primary color composition; ai is dot area ratio of a primary color which can be described by De Mitchell relation; n is dot expansion correction factor[2,3].

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