color reproduction on high density printing
DESCRIPTION
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 - PowerPoint PPT PresentationTRANSCRIPT
2007-2-7 IGU 1
Color Reproduction on High Density Printing
Doosan Chung, DaimuYasuhira,
Nippon Heihan Kizai Takei, IGU Kinoshita2007-02-07
2007-2-7 IGU 2
1、 IntroductionWeb Offset Test
IPCC(Intergovermental Panel Climate Change)Sustainability
1、 Yellow Ink (Red Shift)2、 Magenta, Cyan3、 RI Tester4、 Ink Transfer Model5、 CMS6、 Korea Color vs. Japan Color7、 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-Rite 530S ( Photo2)
N01No2
No3 No4
No5Size=24× 5 cm
※ Ink : 韓國特殊 INK 工業 ;両面 Art Paper
2007-2-7 IGU 5
4、 ResultsInk Transfer (mg) from paper weight
sheetsY
Difference
M Differ C Differ
1 0.16 0.12 0.14
2 0.12 0.06 0.11
3 0.06 0.07 0.12
4 0.04 0.05 0.1
5 0.02 0.02 0.06
2007-2-7 IGU 6
Ink Transfer Quantity原色インキ転移量
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
1 2 3 4 5回数
重量(g)
Y DifferM DifferC Differ
2007-2-7 IGU 7
Fig.1 Yellow Ink Transfer modified Quantity
Y ink 修正値 インキ転移量
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
1 2 3 4 5回数
重量(g)
Ymod Differ
M Differ
C Differ
2007-2-7 IGU 8
Table1 Yellow Ink L*,a*,b* & Density
Yellow
Sheets
L* a* b* c* HA D
1 84.44 4.35 108.51108.
687.7 1.44
3 86.03 0.10 95.20 95.289.9
81.14
5 87.44 -2.57 92.03 92.191.5
51.04
2007-2-7 IGU 9
Yellow Ink DensityYellow 0.1CC 0.15CC 0.2CC 0.25CC
1 Grip 1.44 1.57 1,69 1.72Middle 1.42 1.61 1.71 1.76
End 1.38 1.60 1.69 1.71Ave 1.41 1.59 1.70 1.73 2 Grip 1.27 1.46 1.62 1.66
Middle 1.31 1.51 1.61 1.66End 1.30 1.51 1.61 1.69Ave 1.29 1.49 1.61 1.67 3 Grip 1.14 1.35 1.52 1.60
Middle 1.21 1.41 1.51 1.61End 1.16 1.37 1.54 1.63Ave 1.17 1.38 1.52 1.614 Grip 1.06 1.27 1.42 1.55Middle 1.08 1.30 1.47 1.53
End 1.04 1.28 1.49 1.53Ave 1.06 1.28 1.46 1.54 5 Grip 1.04 1.24 1.38 1.46
Middle 1.03 1.21 1.35 1.45End 1.06 1.23 1.37 1.47Ave 1.04 1.23 1.37 1.46
2007-2-7 IGU 10
Fig.1-2 Variation of Yellow Density
Y 濃度値の変化
1.41
1.29
1.17
1.06 1.04
1.731.67
1.611.54
1.46
1.001.10
1.201.30
1.401.50
1.601.70
1.80
1 Ave 2 Ave 3 Ave 4 Ave 5 AveSheets
Den
sity
0.1CC0.15CC0.2CC0.25CC
2007-2-7 IGU 11
Yellow Chromaticity magnified
Yellow 色度 部分
4.35
0.10
- 2.57
9092949698
100102104106108110
-4 -2 0 2 4 6a*
b*
1
3
5
2007-2-7 IGU 12
Yellow ChromaticityYellow 色度 全体
0102030405060708090
100110120
-4 -2 0 2 4 6
a*
b*
1 =1.44
3=1.145=1.04
2007-2-7 IGU 13
Yellow No5 Sheet Chromaticity
Yellow No.5 Sheet Chromaticity
80.00
85.00
90.00
95.00
100.00
105.00
110.00
115.00
- 4.00 - 2.00 0.00 2.00 4.00 6.00
a*
b*
0.1cc
0.15cc
0.2cc0.25cc
2007-2-7 IGU 14
Yellow Density & Hue AngleYellow D & HA
1.281.29 1.371.38
1.411.461.49
1.521.541.59
1.611.61
1.70
1.73
1.46
1.67
1.041.06
1.231.17
y = - 11.308x + 103.54R2 = 0.9708
82
83
84
85
86
87
88
89
90
91
92
93
0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80
D
HA
2007-2-7 IGU 15
Fig.2 Yellow Density & c*Yellow D & c* 多項式近似曲線
1.17
1.23
1.28
1.371.38
1.411.49
1.521.54 1.59
1.611.61 1.701.73
1.29
1.46
1.67
1.46
1.041.06
y = -42.269x2 + 152.41x - 23.011
R2 = 0.9924
90
92
9496
98
100
102
104
106108
110
112
114
1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80
D
c*
2007-2-7 IGU 16
Magenta No.5 Sample
NO.5 50.1CC 0.15CC 0.2CC 0.25CC Weight
Density 1.31 1.82 2.04 2.18 Printing 前L* 50.09 44.47 42.09 40.50 9.71ga* 72.02 77.04 76.67 75.99 Printing 後b* -2.65 10.03 19.57 27.55 9.73g
Density 1.32 1.82 2.04 2.20L* 49.64 44.14 42.32 40.28a* 71.36 76.49 76.94 75.75b* -2.63 10.12 19.12 27.59
Density 1.35 1.84 2.07 2.17L* 49.35 43.72 41.87 40.56a* 72.37 76.25 76.73 76.05b* -1.48 11.58 20.18 28.11
2
3
1
2007-2-7 IGU 17
Variation of Magenta DensityM濃度値の変化
1.85
1.731.67
1.55
1.33
2.462.36 2.32
2.242.18
y = -0.1233x + 1.9953
R2 = 0.951
y = -0.068x + 2.5193
R2 = 0.9863
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.30
2.40
2.50
1 2 3 4 5
Sheets
Den
sity
0.1
0.15
0.2
0.25
(0.1)線形 (0.25)線形
2007-2-7 IGU 18
Magenta No1,No3 & No5 Sample
M 色度図
-5
0
5
10
15
20
25
0 10 20 30 40 50 60 70 80
a*
b*
1
3
5
2007-2-7 IGU 19
Fig.3 Magenta Density & Hue AngleMagenta D & HA 多項式近似
1.85
1.73
1.67
2.27
2.21
2.16
1.99
1.83
2.38
2.31
2.24
2.18
2.05
2.46
2.36
2.32
2.24
2.18
1.55
1.33
y = 22.763x2 - 53.929x + 31.311R2 = 0.9706
- 5
-
5
10
15
20
25
30
35
40
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
D
HA
360
355
350
2007-2-7 IGU 20
Magenta Density & c*Magenta D & c*
1.851.73
2.27
2.21
2.161.83
2.38
2.31
2.242.18
2.05
2.46
1.55
1.33
1.67
1.99 2.18
2.242.32
2.36
y = 13.833x + 51.906R2 = 0.8803
70
72
74
76
78
80
82
84
86
88
90
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
D
c*
2007-2-7 IGU 21
Cyan No5 Density
Cyan 3 0.1CC 0.15CC 0.2CC 0.25CC 3 Grip 1.49 1.77 2.23 2.28
Middle 1.54 1.86 2.18 2.26End 1.50 1.90 2.22 2.28Ave 1.51 1.84 2.21 2.27
2007-2-7 IGU 22
Cyan No1,3 & 5 Density & ChromaticityDensity 1.89
L* 45.35a* -23.39b* -59.21
Density 1.49L* 50.28a* -27.90b* -54.06
Density 1.45L* 52.76a* -31.25b* -52.82
1
3
5
2007-2-7 IGU 23
Cyan Chromaticity Diagram
Cyan 色度図
-60
-59
-58
-57
-56
-55
-54
-53
-52-35 -30 -25 -20 -15 -10 -5 0
a*
b*
1
3
5
2007-2-7 IGU 24
Fig.4 Cyan Density & Hue AngleCyan D & HA 多項式近似曲線
1.95
1.76
2.16
2.03
1.841.79
1.76
2.24
2.21
2.09
2.00
2.37
2.31
2.09
2.34
2.27
2.19
1.431.51
1.45
y = 22.735x2 - 62.019x + 283.33R2 = 0.9575
235
240
245
250
255
260
265
270
1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40
D
HA
2007-2-7 IGU 25
Cyan Density & c*Cyan D & c*
1.95
1.762.16
2.03
1.84
1.791.76
2.34
2.242.21
2.092.00
2.372.31
2.272.192.09
1.43
1.451.51
y = - 11.244x2 + 45.576x + 17.678R2 = 0.7499
58
59
60
61
62
63
64
65
1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40
D
c*
2007-2-7 IGU 26
Y,M,C Chromaticity & Density Value
Y L* a* b* c* D1 84.44 4.35 108.51 108.6 1.443 86.03 0.10 95.20 95.2 1.145 87.44 -2.57 92.03 92.1 1.04M L* a* b* c* D1 42.31 75.34 19.11 77.7 1.853 45.65 75.86 7.19 76.2 1.675 50.09 72.02 -2.65 72.1 1.34C L* a* b* c* D1 45.35 -23.39 -59.21 63.7 1.953 50.28 -27.90 -54.06 60.8 1.515 52.76 -31.25 -52.82 61.4 1.45
2007-2-7 IGU 27
Table 2 Correlation L* & c* for Density and HA
Y L* c* D HA1 84.44 108.6 1.44 87.73 86.03 95.2 1.14 89.95 87.44 92.1 1.04 91.6γ -0.970 0.998M L* c* D HA1 42.31 77.7 1.85 14.23 45.65 76.2 1.67 5.45 50.09 72.1 1.34 357.9γ -0.996 0.996C L* c* D HA1 45.35 63.7 1.95 248.53 50.28 60.8 1.51 242.75 52.76 61.4 1.45 239.4γ -0.975 0.958
2007-2-7 IGU 28
Y,M,C Chromaticity Diagram
色度図Red1, Blue3, Green5
72
0
- 31- 28
76
- 3
- 23
75
4
-80
-60
-40
-20
0
20
40
60
80
100
120
-40 -20 0 20 40 60 80 100
a*
b*
2007-2-7 IGU 29
Fig.5 RI Tester No.5 & JCP2001
No5 Sheet & J CP2001
16.0
- 70.0
66.0
- 31.25- 36.0
72.02
72.0
- 2.57- 7.0
-80
-60
-40
-20
0
20
40
60
80
100
-80 -60 -40 -20 0 20 40 60 80
a*
b*
2007-2-7 IGU 30
Nova Space Image From Daimu
2007-2-7 IGU 31
RI Tester No.1,No.5 & NovaSpace
RITester No1.No5 & Novaspace
- 42
78
- 3.1
25
- 70
68
72.02
- 31.25
- 2.57
- 23.39
75.34
4.35
-80
-60
-40
-20
0
20
40
60
80
100
120
-100 -50 0 50 100
a*
b*
2007-2-7 IGU 32
Fig.6 Nova space, Wide Color & RI Tester No.3
Novaspace ,Wide Color & RI Tester No3
78
- 37
- 5.4
40
- 71
66
- 70
- 4225
78
68
- 3.1
- 27.90
75.86
0.10
-80
-60
-40
-20
0
20
40
60
80
100
120
-80 -60 -40 -20 0 20 40 60 80 100
2007-2-7 IGU 33
Photo3 Comparison with Wide Color(A1) & 175 Line(A2) Printed Image
2007-2-7 IGU 34
A1-A2 c*& HA Difference
A!- A2 c* HA Difference&
4.05.6
21.2
2.1
6.1
0.6
-5.2
-0.8
13.3
-3.8
5.7
- 0.5
- 10
- 5
-
5
10
15
20
25
C M Y B G R
Color
Diff
eren
ce
c*A1- A2HA A1- A2
2007-2-7 IGU 35
Table4 Comparison with NS and Wide Color
NS L* a* b* c* ΔEC 50 - 42 - 46 62.27 8.5M 48 78 - 12.3 78.47 4.5Y 85 - 3.1 106 105.87 6.7B 21 25 - 54 59.19 17.2G 43 - 70 26 74.25 6.3R 47 68 51 85.15 7.2
Heidel A1 L a b c*C 54 - 37 - 51 62.95M 52 78 - 12.9 78.99Y 88 - 5.4 100 100.31
B 21 40 - 62 74.03G 47 - 71 31 76.83R 50 66 58 87.99
2007-2-7 IGU 36
Table3 RI Tester No.5 CMY & JCP2001
RI Tester No.5 CMY & J CP2001RI Tester L* a* b* c* HA Δ E
C 52.76 -31.25 -52.82 61.37 239.42 6.22M 50.09 72.02 -2.65 72.07 357.89 5.61Y 87.44 -2.57 92.03 92.07 91.60 4.66
J CP2001 L* a* b* c* HAC 54.0 - 36.0 - 49.0 60.8 233.72 M 45.0 72.0 - 5.0 72.2 356.03 Y 86.0 - 7.0 92.0 92.3 94.35
2007-2-7 IGU 37
Yellow Magnified Color Diagram ( J,K)Nova Space, Wide Color,JCP2001,Doosan, RI Tester
Yellow Color Diagram(J ,K)
-1.8D-1.12
-2.6D-9.28
-5.4WCNo1
-3.1NS
-7.0J CP2001
0.1RINo5
4.4RINo.3
80
85
90
95
100
105
110
-8.0 -6.0 -4.0 -2.0 0.0 2.0 4.0 6.0
a*
b*
2007-2-7 IGU 38
Red Magnified Color Diagram ( J,K)Nova Space, Wide Color,JCP2001,Doosan
Red Color Diagram
66.4D-9.28
67.0D-1.12
66.7A2
66.2A1
67.8NS
66.0J CP2001
45
47
49
51
53
55
57
59
66 66 67 67 68 68
a*
b*
2007-2-7 IGU 39
Y,M,C Equations From Graph Polynomial expression approximate curve (D-HA)
y C= 22.735x2 - 62.019x + 283.33
R2 = 0.9575yM = 22.763x2 - 53.929x + 3
1.311R2 = 0.9706
y Y= -7.5322x2 + 9.6369x + 89.284
R2 = 0.9887
Cyan D & HA 多項式近似曲線
1.95
1.76
2.16
2.03
1.841.79
1.76
2.24
2.21
2.09
2.00
2.37
2.31
2.09
2.34
2.27
2.19
1.431.51
1.45
y = 22.735x2 - 62.019x + 283.33R2 = 0.9575
235
240
245
250
255
260
265
270
1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.20 2.30 2.40
D
HA
Magenta D & HA 多項式近似
1.85
1.73
1.67
2.27
2.21
2.16
1.99
1.83
2.38
2.31
2.24
2.18
2.05
2.46
2.36
2.32
2.24
2.18
1.55
1.33
y = 22.763x2 - 53.929x + 31.311R2 = 0.9706
- 5
-
5
10
15
20
25
30
35
40
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6
D
HA
360
355
350
Yellow D & HA
1.281.29 1.371.38
1.411.461.49
1.521.541.59
1.611.61
1.70
1.73
1.46
1.67
1.041.06
1.231.17
y = - 7.5322x2 + 9.6369x + 89.284R2 = 0.9887
82
83
84
85
86
87
88
89
90
91
92
93
0.80 0.90 1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80
D
HA
2007-2-7 IGU 40
c*-L* Diagram
色調図 No5 Sheet ,Blue line=Cyan,Red line=Magent,Greenline=Yelow
95
766461
78
109
7261
92
010
2030
405060
7080
90100
- 20 40 60 80 100 120
c*
L*
other dots No.1,No3
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 & chro
ma on Y,M,C are order of Y>M>C.4、 The a* minus values of chromaticity Y are unde
r Density=1.5、 The 2nd~4th sheets of each ink are stable in ink t
ransfer.6、 The 2nd Experiment of low density is necessary.