Transcript Reproduction on Color Ink by RI Tester

Color Reproduction on High
Density Printing
Doosan Chung,
DaimuYasuhira,
Nippon Heihan Kizai Takei,
IGU Kinoshita
2007-02-07
2007-2-7 IGU
1
１、Introduction
Web Offset Test
ＩＰＣＣ（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
2
２、Preliminary Experimental（Photo1)
RI Tester
（Akira Manufacturing Co.)
2007-2-7 IGU
3
３、Calibration by X-Rite５３０S（Photo2)
N01
No3
Size=24×５ cm
No2
No4
No5
※ Ink : 韓國特殊INK工業
；両面Art Paper
2007-2-7 IGU
4
４、Results
Ink Transfer (mg) from paper weight
sheets
Y 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
5
Ink Transfer Quantity
Y Differ
M Differ
C Differ
原色インキ転移量
0.18
0.16
0.14
重量（ｇ）
0.12
0.1
0.08
0.06
0.04
0.02
0
1
2
回数
3
2007-2-7 IGU
4
5
6
Fig.1 Yellow Ink Transfer
modified Quantity
Y　ink修正値　インキ転移量
Ymod Differ
M Differ
重量（ｇ）
0.18
0.16
C Differ
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
1
2
2007-2-7 IGU
回数
3
4
5
7
Table1 Yellow Ink L*,a*,b* & Density
Yellow
L*
a*
1
84.44
4.35
3
86.03
0.10
5
87.44
-2.57
Sheets
b*
HA
D
108.51 108.6
87.7
1.44
95.20
95.2
89.98
1.14
92.03
92.1
91.55
1.04
2007-2-7 IGU
c*
8
Yellow Ink Density
Yellow
1 Grip
Middle
End
0.1CC 0.15CC 0.2CC 0.25CC
1.44
1.57
1,69
1.72
1.42
1.61
1.71
1.76
1.38
1.60
1.69
1.71
Ave
1.41
1.59
1.70
1.73
２　Grip
End
1.27
1.31
1.30
1.46
1.51
1.51
1.62
1.61
1.61
1.66
1.66
1.69
Ave
1.29
1.49
1.61
1.67
３　Grip
End
1.14
1.21
1.16
1.35
1.41
1.37
1.52
1.51
1.54
1.60
1.61
1.63
Ave
1.17
1.38
1.52
1.61
４ Grip
End
1.06
1.08
1.04
1.27
1.30
1.28
1.42
1.47
1.49
1.55
1.53
1.53
Ave
1.06
1.28
1.46
1.54
５　Grip
End
1.04
1.03
1.06
1.24
1.21
1.23
1.38
1.35
1.37
1.46
1.45
1.47
Ave
1.04 2007-2-7
1.23IGU
1.37
1.46
Middle
Middle
Middle
Middle
9
Fig.1-2 Variation of Yellow Density
Density
Y 濃度値の変化
1.80
1.70
1.60
1.50
1.40
1.30
1.20
1.10
1.00
1.73
1.67
0.1CC
0.15CC
0.2CC
0.25CC
1.61
1.54
1.46
1.41
1.29
1.17
1.06
1 Ave
2 Ave
3 Ave
Sheets
2007-2-7 IGU
4 Ave
1.04
5 Ave
10
b*
Yellow Chromaticity magnified
5
-4
Yellow 色度 部分
110
108
106
104
102
100
98
96 0 . 1 0
94
-2.57
3
92
90
-2
0
2
a*
2007-2-7 IGU
4.35
1
4
6
11
Yellow Chromaticity
Yellow 色度　全体
b*
5=1.04
-4
-2
120
110
100
90
80
70
60
50
40
30
20
10
0
3=1.14
1 =1.44
0
2
4
6
a*
2007-2-7 IGU
12
Yellow No5 Sheet Chromaticity
Yellow No.5 Sheet Chromaticity
115.00
110.00
0 .2 5 c c
105.00
0.2cc
b*
100.00
95.00
0.15cc
90.00
0 .1 c c
-4.00
-2.00
85.00
80.00
0.00
2.00
4.00
6.00
a*
2007-2-7 IGU
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Yellow Density & Hue Angle
Yellow D & HA
HA
93
92
91
1 .0 4
1 .0 6
90
1 .1 7
1 .2 3
1.28
1.29 1.37
1.38
1.411.46
1.46
1.49
1.52
1.54
89
88
87
86
y = -11.308x + 103.54
R2 = 0.9708
85
84
1.59
1.61
1.67
1.70
83
1.73
82
0.80
0.90
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
D
2007-2-7 IGU
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Fig.2 Yellow Density & ｃ＊
Yellow D & c*　多項式近似曲線
114
112
y = -42.269x 2 + 152.41x - 23.011
c*
110
108
106
104
2
R = 0.9924
1.73
1.67
1.70
1.61
1.54 1.59
1.52
1.46
1.49
1.41 1.46
1.37
1.38
1.29
1.28
102
1.23
100
98
1.17
96
94
1 .0 6
1 .0 4
92
90
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
D
2007-2-7 IGU
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Magenta No.5 Sample
NO.5
1
2
3
5
0.1CC 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
9.71g
a*
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
2.20
L*
49.64
44.14
42.32
40.28
a*
71.36
76.49
76.94
75.75
b*
-2.63
10.12
19.12
27.59
Density 1.35
1.84
2.07
2.17
L*
49.35
43.72
41.87
40.56
a*
72.37
76.25
76.73
76.05
b*
-1.48
11.58
20.18 28.11
2007-2-7 IGU
16
Variation of Magenta Density
0.1
0.15
0.2
0.25
線形 (0.1)
線形 (0.25)
M濃度値の変化
y = -0.068x + 2.5193
2.50
2.40
2.46
2
R = 0.9863
2.36
2.30
2.20
2.32
2.24
2.18
Density
2.10
2.00
1.90
1.85
1.80
1.70
1.73
1.60
1.67
y = -0.1233x + 1.9953
R 2 = 0.951
1.50
1.40
1.55
1.33
1.30
1
2
3
4
5
Sheets
2007-2-7 IGU
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Magenta No1,No3 & No5 Sample
M 色度図
25
１
20
b*
15
10
３
5
0
-5 0
10
20
30
40
a*
2007-2-7 IGU
50
60
70
80
５
18
Fig.3 Magenta Density & Hue Angle
Magenta D & HA　多項式近似
40
2.46
35
2.36
2.38
2
y = 22.763x - 53.929x + 31.311
R2 = 0.9706
30
25
2.32
2.31
2.27
2.24
2.21
2.18
2.16
HA
20
15
2.05
1.99
1.85
10
1.73
1.83
1.67
5
360
355
1 .5 5
1.2
.3 3
1.3 1 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
350 -5
D
2007-2-7 IGU
19
Magenta Density & c*
Magenta D & c*
90
2.46
88
2.36
86
y = 13.833x + 51.906
2
R = 0.8803
84
c*
82
2.32
2.31
2.24
2.27
2.24
2.21
2.18
1.99
2.18
2.05
80
78
76
1 .5 5
74
1.73
1.67
2.38
2.16
1.83
1.85
1 .3 3
72
70
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
2007-2-7 IGU
20
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
2.26
End
1.50
1.90
2.22
2.28
1.51
1.84
2.21
2.27
Ave
2007-2-7 IGU
21
Cyan No1,3 & 5 Density & Chromaticity
Density 1.89
L*
45.35
1
a*
-23.39
b*
-59.21
Density 1.49
L*
50.28
3
a*
-27.90
b*
-54.06
Density 1.45
L*
52.76
5
a*
-31.25
2007-2-7 IGU
b*
-52.82
22
Cyan Chromaticity Diagram
Cyan 色度図
-52
-35
-30
-25
-20
-15
5
-10
-5
-53
0
-54
-55
b*
3
-56
-57
-58
1
-59
-60
a*
2007-2-7 IGU
23
Fig.4 Cyan Density & Hue Angle
Cyan D & HA　多項式近似曲線
270
2.37
265
y = 22.735x2 - 62.019x + 283.33
R2 = 0.9575
260
2.34
2.31
2.16
HA
255
2.03 2.09
2.09
250
245
1 .4 3
240
1.84
1.95
2.00
1.90
2.00
1.79
1.76
1.76
2.24
2.27
2.21
2.19
1 .5 1
1 .4 5
235
1.40
1.50
1.60
1.70
1.80
2.10
2.20
2.30
2.40
D
2007-2-7 IGU
24
Cyan Density & ｃ＊
Cyan D & c*
65
2.00
64
1.76
1.79
63
c*
1.76
2.09
2.09
1.95
1.84
2.03
62
2.19
2.21 2.27
2.24
2.16
2.34
2.31
2.37
1 .5 1
61
1 .4 5
y = -11.244x2 + 45.576x + 17.678
R2 = 0.7499
60
59
1 .4 3
58
1.40
1.50
1.60
1.70
1.80
1.90
2.00
2.10
2.20
2.30
2.40
D
2007-2-7 IGU
25
Y,M,C Chromaticity & Density Value
Y
L*
a*
b*
1
3
5
84.44
86.03
87.44
4.35
0.10
-2.57
108.51
95.20
92.03
M
L*
a*
b*
1
3
5
42.31
45.65
50.09
75.34
75.86
72.02
19.11
7.19
-2.65
C
L*
a*
b*
1
3
5
45.35
50.28
52.76
-23.39
-27.90
-31.25
-59.21
-54.06
-52.82
2007-2-7 IGU
c*
108.6
95.2
92.1
c*
77.7
76.2
72.1
c*
63.7
60.8
61.4
D
1.44
1.14
1.04
D
1.85
1.67
1.34
D
1.95
1.51
1.45
26
Table 2 Correlation L* & c* for Density
and HA
Y
L*
1
3
5
γ
84.44
86.03
87.44
M
1
3
5
γ
C
1
3
5
γ
-0.970
L*
42.31
45.65
50.09
-0.996
L*
45.35
50.28
52.76
-0.975
c*
108.6
95.2
92.1
0.998
c*
77.7
76.2
72.1
0.996
c*
63.7
60.8
61.4
0.958
2007-2-7 IGU
D
1.44
1.14
1.04
HA
87.7
89.9
91.6
D
1.85
1.67
1.34
HA
14.2
5.4
357.9
D
1.95
HA
248.5
242.7
239.4
1.51
1.45
27
Y,M,C Chromaticity Diagram
色度図Red1, Blue3, Green5
120
4
100
0
-3
80
60
b*
40
20
75
76
72
0
-40
-20
-20
0
20
40
60
80
100
-40
-31
-28
-23
-60
-80
a*
2007-2-7 IGU
28
Fig.5 RI Tester No.5 & JCP2001
No5 Sheet & JCP2001
-7.0
100
-2.57
80
60
66.0
40
-70.0
b*
20
0
-80
-60
-40
-36.0
-20
-20
0
-40
-31.25
20
40
60
72.02
72.0 80
16.0
-60
-80
a*
2007-2-7 IGU
29
Nova Space Image From Daimu
2007-2-7 IGU
30
RI Tester No.1,No.5 & NovaSpace
RITester No1 .No5 & Novaspac e
120
-3.14 .3 5
100
- 2 .5 7
80
60
68
40
b*
-70
20
7 5 .3 4
0
-100
-50
-20
-42
0
50
7 2 .0 2
78 100
-40
25
- 3 1 .2 5
-60
- 2 3 .3 9
-80
a*
2007-2-7 IGU
31
Fig.6 Nova space, Wide Color &
RI Tester No.3
Novaspace ,Wide Color & RI Tester No3
120
- 3 .1
100 -5.40 .1 0
80
60
66
68
40
-71
-70
20
7 5 .8 6
0
-80
-60
-40
0
-20
60
40
20
-20
-42
-37 - 2 7 .9 0
8078
100
78
-40
-60
25
40
-80
2007-2-7 IGU
32
Photo3 Comparison with Wide Color(A1) & 175 Line(A2)
Printed Image
2007-2-7 IGU
33
A1-A2 c*& HA Difference
A!-A2 c*＆HA Difference
25
c*A1-A2
HA A1-A2
21.2
20
13.3
Difference
15
10
4.0
5
6.1 5.7
5.6
2.1
0.6
C
-5
-0.5
M
Y-0.8
B
G
R
-3.8
-5.2
-10
Color
2007-2-7 IGU
34
Table4 Comparison with NS and Wide Color
NS
C
M
Y
B
G
R
Heidel A1
C
M
Y
B
G
R
L*
50
48
85
21
43
47
L
54
52
88
21
47
50
a*
-42
78
-3.1
25
-70
68
a
-37
78
-5.4
40
-71
66
b*
-46
-12.3
106
-54
26
51
b
-51
-12.9
100
-62
31
58
2007-2-7 IGU
c*
62.27
78.47
105.87
59.19
74.25
85.15
c*
62.95
78.99
100.31
74.03
76.83
87.99
ΔE
8.5
4.5
6.7
17.2
6.3
7.2
35
Table3 RI Tester No.5 CMY &
JCP2001
RI Tester No.5 CMY & JCP2001
RI Tester L＊
a＊
b＊
c＊
52.76
-31.25 -52.82
61.37
C
50.09
72.02
-2.65
72.07
M
87.44
-2.57
92.03
92.07
Y
JCP2001 L＊
a＊
b＊
c＊
C
54.0
-36.0 -49.0
60.8
M
45.0
72.0
-5.0
72.2
Y
86.0
-7.0
92.0
92.3
2007-2-7 IGU
HA
239.42
357.89
91.60
HA
233.72
356.03
94.35
ΔE
6.22
5.61
4.66
36
Yellow Magnified Color Diagram（J,K)
Nova Space, Wide Color,JCP2001,Doosan, RI Tester
Yellow Color Diagram(J,K)
110
-3.1
NS
-5.4
WCNo1
4.4
RINo.3
105
b*
100
0.1
RINo5
95
-7.0
JCP2001
-2.6 90
D-9.28
-1.8
D-1.12
85
80
-8.0
-6.0
-4.0
-2.0
0.0
2.0
4.0
6.0
a*
2007-2-7 IGU
37
Red Magnified Color Diagram（J,K)
Nova Space, Wide Color,JCP2001,Doosan
Red Color Diagram
59
66.2
A1
57
55
b*
53
67.8
NS
51
49
67.0
D-1.12
66.0
JCP2001
47
45
66
66
66.7
A2
66.4
D-9.28
67
67
68
68
a*
2007-2-7 IGU
38
Y,M,C Equations From Graph Polynomial expression
approximate curve (D-HA)
Magenta D & HA　多項式近似
Cyan D & HA　多項式近似曲線
270
40
2.37
265
y = 22.735x2 - 62.019x + 283.33
R2 = 0.9575
260
2.16
2.03 2.09
2.09
250
245
1.84
1 .4 3
240
1.79
1.76
1.76
2.36
2.38
2
y = 22.763x - 53.929x + 31.311
R2 = 0.9706
30
2.24
2.27
25
2.21
2.19
2.18
2.16
20
15
1.95
2.00
10
1.73
1.83
1 .5 1
1.67
5
360
1 .5 5
355 1.2
235
1.50
1.60
1.70
1.80
2.05
1.99
1.85
1 .4 5
1.40
2.32
2.31
2.27
2.24
2.21
HA
HA
255
2.46
35
2.34
2.31
1.90
2.00
2.10
2.20
2.30
2.40
.3 3
1.3 1 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
350 -5
D
D
Yellow D & HA
93
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
92
91
1 .0 4
1 .0 6
90
1 .1 7
1 .2 3
1.28
1.29 1.37
1.38
1.411.46
1.46
1.49
1.52
1.54
89
88
87
86
85
84
1.59
1.61
1.67
1.70
y = -7.5322x2 + 9.6369x + 89.284
R2 = 0.9887
83
1.73
82
0.80
0.90
2007-2-7 IGU
1.00
1.10
1.20
1.30
1.40
1.50
1.60
1.70
1.80
D
39
c*-L* Diagram
色調図 No5 Sheet ,Blue line=Cyan,Red line=Magent,Greenline=Yelow
L*
100
90
92
95
80
70
60
50
40
109
61
61
64
72
76
78
30
20
10
0
-
20
40
60
c*
2007-2-7 IGU
80
100
120
o t h e r do t s No .1 ,No 3
40
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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