1. Test items:
1. Random printing imitation printing ink ink can express a large color space (compared with Zhejiang Guangbo Group and ISOcoated_v2_eci.icc curve) and output proofing ability
2. Feel free to print imitation printing ink ink printing picture effect
Second, test hardware, software, paper and environmental factors1. Hardware equipment: EPSON printer, Eye-One IO, DELL2709W LCD display
2. Test software: EFI Colorproof XF 4.0, ColorThink Pro3.0.1b22, ColorPort1.5.4, Monaco CamutWorks, ProfileMaker—ProfileEditor
3. Test paper: 180g coated paper
4. Environment: D50 standard light source, room temperature 20 degrees, humidity 70%
Third, the test process1. Feel free to print the large color space and follow-up ability that can be expressed by imitation printing ink and ink (take 180g coated paper as reference)
2. The curve SP7800_1440x720_140709_101344.ICC generated by the digital proofing software EFI Colorproof XF 4.0 is adjusted to obtain the maximum color gamut space as follows (when L = 50)
Next, take a look at the LAB color space 3D mode, look at their situation. A axis means red-green, B axis means yellow-blue, L axis means gray axis, from Figure (2), Figure (3) We clearly see that whether it is red, green, yellow, blue, bright or dark, the curves made with random imitation printing inks and inks perfectly cover the curves of Zhejiang Guangbo Printing Factory
figure 2)
image 3)
The following is a comparison of the curve made by random imitation printing ink and ink and ISOcoated_v2_eci as shown in figure (4) (when L = 50)
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From 2D, the overall color gamut of the EPSON7800 curve basically covers ISOcoated_v2_eci. In order to observe the curve more intuitively, we can also switch to 3D, as shown in Figures (5) and (6).
Figure 5)
Image 6)
The 3D graph shows that there is only a little coverage, and the color gamut is about 99%, but EFI has a simulation optimization function. After optimization, the average value of â–³ E is 0.74, the peak value is 3.98, and the paper white is 1.9, which is enough to simulate the ISOcoated_v2_eci diagram Show.3. Test printed grayscale pictures
The gray scale color target is made by ColorPort software as shown in figure (8)
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Use EFI Colorproof XF 4.0 to simulate the printing and measure and export the data gray balance data through ColorPort
C
M
Y
K
L
A
B
0
0
0
0
93.36
-0.17
-0.86
1
1
1
0
93.24
-0.09
-0.98
1.5
1.5
1.5
0
92.63
-0.27
-0.86
2
1.7
1.7
0
92.21
-0.07
-1.11
3
2
2
0
91.83
-0.07
-1.32
4
2.5
3
0
91.03
-0.31
-1.39
5
3
3.5
0
90.85
-0.21
-1.61
6
4
4
0
89.91
-0.16
-1.37
7
5
5
0
89.18
-0.08
-1.3
9
6
6.5
0
88.02
-0.23
-1.08
10
7
7.5
0
87.25
-0.02
-0.91
11
8
8
0
86.3
0.51
-1.83
12
9
9
0
85.72
0.72
-1.66
13
9
9.5
0
84.99
0.44
-1.53
15
11
11
0
83.44
0.91
-1.7
16
11
12
0
83.26
0.6
-1.2
17
12
13
0
82, .39
0.7
-1.1
18
13
13.5
0
81.59
1.05
-1.1
, N>19
14
14.5
0
,80.8
1.44
-1.51
20
14.5
15
0
80.23
1.19
-1.31
twenty one
15
16
0
79.62
1.2
-1.03
twenty two
16
16.5
0
79.12
0.84
-0.66
twenty three
17
17
0
78.46
1.37
-0.86
twenty four
18
18
0
77.59
1.3
-0.75
25
18
19
0
77.19
0.69
-0.39
26
19
19
0
76.29
1.12
-1.35
27
20
20
0
75.2
1.95
-2.15
29
twenty one
twenty one
0
74.61
1.04
0.01
30
twenty two
twenty two
0
73.82
1.52
-0.18
31
twenty three
twenty three
0
73.2
1.48
-0.45
32
twenty four
twenty four
0
72.28
2.07
-0.34
33
24.5
25
0
71.84
1.78
-0.47
35
26
26
0
70.46
1.75
-0.3
36
27
27
0
69.75
2.16
-0.3
37
28
28
, SPAN>0
68.95
1.83
0.51
39
29
29
0
68.19
1.62
0.46
40
30
30
0
67.03
1.66
0.24
42
32
32
0
65.42
1.75
0.5
44
33
33
0
64.12
1.25
0.7
45
34
34
0
63.46
1.67
0.92
46
35
35
0
62.44
1.8
0.88
47
36
36
0
61.98
1.48
1.49
49
38
38
0
60.13
1.52
1.86
50
39
39
0
58.97
1.73
1.64
52
41
40
0
57.48
2.09
1.33
53
42
41
0
56.4
2.24
0.6
54
43
42
0
55.67
2.11
0.96
56
45
44
0
53.94
2.04
0.67
57
46
45
0
53.12
2.18
0.98
59
47
47
0
52.38
1.97
1.05
61
49
48
0
50.84
1.88
0.41
62
50
50
0
49.83
1.13
1.22
63
51
50
0
49.16
1.7
0.65
65
53
52.5
0
47.59
1.16
1.06
66
54
53
0
47.9
1.47
0.77
67
55
54
0
47.28
1.94
0.83
69
57
56
0
45.32
1.82
1.1
71
59
58
0
44.23
1.52
1.33
73
60
60
0
43.15
0.85
1.83
73
61
60
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