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Color Reproduction on High Density Printing

Color Reproduction on High Density Printing. Doosan Chung, DaimuYasuhira, Nippon Heihan Kizai Takei, IGU Kinoshita 2007-02-07. １、 Introduction Web Offset Test ＩＰＣＣ （Ｉｎｔｅｒｇｏｖｅｒｍｅｎｔａｌ Ｐａｎｅｌ Climate Change) Sustainability. １、 Yellow Ink (Red Shift) ２、 Magenta, Cyan ３、 RI Tester

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Color Reproduction on High Density Printing

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  1. Color Reproduction on High Density Printing Doosan Chung, DaimuYasuhira, Nippon Heihan Kizai Takei, IGU Kinoshita 2007-02-07 2007-2-7 IGU

  2. １、IntroductionWeb Offset TestＩＰＣＣ（Ｉｎｔｅｒｇｏｖｅｒｍｅｎｔａｌ Ｐａｎｅｌ Climate Change)Sustainability １、Yellow Ink (Red Shift) ２、Magenta, Cyan ３、RI Tester ４、Ink Transfer Model ５、CMS ６、Korea Color vs. Japan Color ７、High Density Printing (Nova Space, Wide Color) 2007-2-7 IGU

  3. ２、Preliminary Experimental（Photo1) RI Tester （Akira Manufacturing Co.) 2007-2-7 IGU

  4. ３、Calibration by X-Rite５３０S（Photo2) N01 No2 No3 No4 Size=24×５　cm No5 ※ Ink : 韓國特殊INK工業　 ；両面ArtPaper 2007-2-7 IGU

  5. ４、ResultsInk Transfer (mg) from paper weight 2007-2-7 IGU

  6. Ink Transfer Quantity 2007-2-7 IGU

  7. Fig.1 Yellow Ink Transfer modified Quantity 2007-2-7 IGU

  8. Table1 Yellow Ink L*,a*,b* & Density 2007-2-7 IGU

  9. Yellow Ink Density 2007-2-7 IGU

  10. Fig.1-2 Variation of Yellow Density 2007-2-7 IGU

  11. Yellow Chromaticity magnified 1 5 3 2007-2-7 IGU

  12. Yellow Chromaticity 3=1.14 5=1.04 1 =1.44 2007-2-7 IGU

  13. Yellow No5 Sheet Chromaticity 2007-2-7 IGU

  14. YellowDensity & Hue Angle 2007-2-7 IGU

  15. Fig.2 YellowDensity & ｃ＊ 2007-2-7 IGU

  16. Magenta No.5 Sample 2007-2-7 IGU

  17. Variation of Magenta Density 2007-2-7 IGU

  18. Magenta No1,No3 & No5 Sample 2007-2-7 IGU

  19. Fig.3 Magenta Density & Hue Angle 2007-2-7 IGU

  20. Magenta Density & c* 2007-2-7 IGU

  21. Cyan No5 Density 2007-2-7 IGU

  22. Cyan No1,3 & 5 Density & Chromaticity 2007-2-7 IGU

  23. Cyan Chromaticity Diagram 2007-2-7 IGU

  24. Fig.4 Cyan Density & Hue Angle 2007-2-7 IGU

  25. Cyan Density & ｃ＊ 2007-2-7 IGU

  26. Y,M,C Chromaticity & Density Value 2007-2-7 IGU

  27. Table 2CorrelationL* & c* for DensityandHA 2007-2-7 IGU

  28. Y,M,C Chromaticity Diagram 2007-2-7 IGU

  29. Fig.5 RI Tester No.5 & JCP2001 2007-2-7 IGU

  30. Nova Space Image From Daimu 2007-2-7 IGU

  31. RI Tester No.1,No.5 & NovaSpace 2007-2-7 IGU

  32. Fig.6Nova space, Wide Color & RITester No.3 2007-2-7 IGU

  33. Photo3Comparison with Wide Color(A1) & 175 Line(A2) Printed Image 2007-2-7 IGU

  34. A1-A2 c*& HA Difference 2007-2-7 IGU

  35. Table4 Comparison with NS and Wide Color 2007-2-7 IGU

  36. Table3RI Tester No.5 CMY & JCP2001 2007-2-7 IGU

  37. YellowMagnified Color Diagram（J,K)Nova Space, Wide Color,JCP2001,Doosan, RI Tester 2007-2-7 IGU

  38. RedMagnified Color Diagram（J,K)Nova Space, Wide Color,JCP2001,Doosan 2007-2-7 IGU

  39. Y,M,C EquationsFrom Graph Polynomial expression approximate curve (D-HA) y C= 22.735x2 - 62.019x + 283.33 R2 =0.9575 yM = 22.763x2 - 53.929x + 31.311 R2 = 0.9706 y Y= -7.5322x2 + 9.6369x + 89.284 R2 = 0.9887 2007-2-7 IGU

  40. c*-L* Diagram 2007-2-7 IGU

  41. ５、Summary １、Correlation for Density Value of Yellow ink (Y) is high for c* and reverse for L*& HA. ２、Increasing Y Ink trend to reddish. 3、These correlations between Ink density & chroma on Y,M,C are order of Y>M>C. 4、The a* minus values of chromaticity Y are under Density=1. 5、The 2nd~4th sheets of each ink are stable in ink transfer. 6、The 2nd Experiment of low density is necessary. 2007-2-7 IGU

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