Notes on the GMG InkOptimizer Print Sample sheet fed offset

sheet
fed offset
edition
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InkOptimizer, we recommend to
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Notes on the GMG InkOptimizer
Print Sample
A minor cause can have a major effect: GMG InkOp-
Design of the GMG InkOptimizer Print Sample
timizer is a software solution for fully automatic ink
The GMG InkOptimizer Print Sample consists of
reduction of individual images or whole pages. While
the basic test forme below:
retaining the same colour impression, the CMY col-
separated according to ISOcoated_v2 using differ-
our component is reduced and the black component
ent, conventional ICC profiles. Since the separation
increased at the same time. No visual or colorimetric
settings (black composition, UCR/GCR, etc.) are de-
difference between ink-optimised and non-ink-opti-
fined when creating the profile, different CMY and K
mised images can be determined on the monitor or
colour separations
the proof. However, ink-optimised and non-ink-op-
image. Also included are test images for checking
timised data behave very differently on the press.
tertiary colours and skin tones
This becomes apparent when matching the colours
image for checking the grey balance
of the GMG Print Sample.
corresponding CMY and K separations.
2
1
This image was
are obtained for the same
3
, as well as a test
4
, with the
GMG InkOptimizer
This page shows possible separations in daily
production.
Ink coverage:
Cyan: 33% Magenta:
Yellow: 31% Black:
31% forme
Basic test
24%
Total: 119%
Press: KBA Rapida 162-5
Ink:
K+E Novaboard
Paper: IGEPA Profi Silk 135g/m2
CMYK
1
2
3
4
K
CMY
c25
cmy70
GMG InkOptimizer
y50
k50
m25
c50
y25
k70
m5
c75
y5
MY
CY
M
cy
CM
CMY
K
Y
cm
CMY
K
my
K
CMY
K
CMY
C
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
P
Standardized print
according to ISO 12647
%#)BVDM
'RAY#ON-sV
&OGRA
FOGRA-certiÛed proof
CMY
RapidCheck® Control Strip 1.0 - FOGRA39 - Paper type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
K
Optimized print data
according to ISO 12647
Ink-optimised
cmy50
m50
k30
y75
c5
Total: -29%
CMYK
GMG Color Management WorkÜow
Total: 84%
Separation
Reseparation
Color conversion
15%
41%
Reduction on this page:
Cyan: -61% Magenta: -52%
+71%
Yellow: -52% Black:
m75
k5
cmy30
Page optimized using profile:
IO_ISOcoated_V2_39L_TAC330_G1_V1.mx4
Ink coverage:
Cyan: 13% Magenta:
Yellow: 15% Black:
Internal data creation
External data
Ink-optimized / Printed with high magenta density
Print Sample
K
CMY
K
CMY
Ink-optimized / Printed with normal density
cmy70
c25
cmy30
k5
c5
y75
k30
m50
cmy50
y50
k50
m25
c50
y25
k70
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORM
%#)BVDM
'RAY#ON-sV
&OGRA
K
CMY
K
CMY
m5
k5
y75
k30
y5
M
CY
CM
cy
Y
CMY
K
CMY
MY
cm
my
K
CMY
K
P
CMY
K
MY
Ink-optimised
CMY
C
m50
cmy50
y50
k50
m25
c50
y25
K
k70
Total: -29%
m75
Total: 84%
m5
c75
y5
MY
CY
M
cy
CM
CMY
K
P
CMY
K
CMY
K
CMY
CMY
Y
Basic test forme
cm
K
15%
41%
Reduction on this page:
Cyan: -61% Magenta: -52%
+71%
Yellow: -52% Black:
c5
m75
Ink coverage:
Cyan: 13% Magenta:
Yellow: 15% Black:
CMYK
my
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
CMYK
K
Press: KBA Rapida 162-5
Ink:
K+E Novaboard
Paper: IGEPA Profi Silk 135g/m2
C
Total: 119%
RapidCheck® Control Strip 1.0 - FOGRA39 - Paper type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
31%
24%
c75
c25
Page optimized using profile:
IO_ISOcoated_V2_39L_TAC330_G1_V1.mx4
cmy30
This page shows possible separations in daily
production.
Ink coverage:
Cyan: 33% Magenta:
Yellow: 31% Black:
GMG InkOptimizer
cmy70
GMG InkOptimizer
RapidCheck® Control Strip 1.0 - FOGRA39 - Paperr type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
Original Separation / Printed with high magenta density
%#)BVDM
'RAY#ON-sV
&OGRA
K
CMY
K
CMY
The basic test forme was processed using GMG InkOp-
• The ink-optimised test formes remain stable in re-
timizer. The basic test forme was positioned at the bot-
lation to each other, despite the higher magenta or
tom left of the printing forme, and the ink-optimised test
cyan density on the two print samples.
forme at the top left. The right-hand side contains the
ink-optimised test forme as a reference. On the press,
No conflict between quality, time and cost
the ink screws were opened further on the left-hand
Ink-optimised data substantially improve the quality of
side, once for magenta (Print Sample Magenta) and
your print product in that:
once for cyan (Print Sample Cyan), i.e. a higher density
• The colour composition is harmonised,
was used on the left in each case. Now place the two
• Colour variations are reduced,
left-hand sides of the samples next to each other:
• It takes less time to get the right colours on the press,
• Less waste is produced,
• Production printing is very stable,
colours of the basic test formes on the two print
• Repeat jobs can be reproduced better,
samples differing significantly from each other. Sim-
• The lower level of ink application reduces offsetting,
ilarly, the grey balance shows a clear magenta or
• Less powder is needed,
cyan colour cast.
• The drying time is shorter.
GMG GmbH & Co. KG, Moempelgarder Weg 10, 72072 Tuebingen, Germany.
Tel +49 (0) 7071 93874-0, Fax +49 (0) 7071 93874-22, [email protected], www.gmgcolor.com.
© 2008 GMG GmbH & Co. KG. GMG, the GMG logo and GMG DotProof are (registered) trademarks of GMG GmbH & Co. KG. All other names and
products are (registered) trademarks of the respective company and expressly acknowledged as such. Subject to technical and other alterations.
InkOptimizer_Sample_DS/01/10_08/en
• The higher magenta or cyan density results in the
CY
MY
K
CMY
%#)BVDM
'RAY#ON-sV
&OGRA
my
cm
Y
cy
M
y5
c75
K
CMY
K
CMY
K
CMY
K
CMY
CM
CY
MY
m25
k50
y50
cmy50
CMYK
K
CMY
Y
cy
M
y5
c75
RapidCheck® Control Strip 1.0 - FOGRA39 - Paper type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
%#)BVDM
'RAY#ON-sV
&OGRA
cm
m5
k70
y25
c50
m25
k50
y50
cmy50
m50
m75
k30
y75
c5
m75
Total: -29%
my
c5
k5
k5
cmy30
c25
cmy30
c25
Page optimized using profile:
IO_ISOcoated_V2_39L_TAC330_G1_V1.mx4
K
y75
cmy70
cmy70
GMG InkOptimizer
C
k30
Reduction on this page:
Cyan: -61% Magenta: -52%
+71%
Yellow: -52% Black:
m50
Total: 84%
c50
15%
41%
CMY
y25
Ink coverage:
Cyan: 13% Magenta:
Yellow: 15% Black:
K
k70
Original Separation / Printed with high magenta density
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
CMY
m5
This page shows possible separations in daily
production.
K
GMG InkOptimizer
C
Press: KBA Rapida 162-5
Ink:
K+E Novaboard
Paper: IGEPA Profi Silk 135g/m2
Total: 119%
CMYK
31%
24%
P
K
CMY
K
CMY
K
CMY
CM
CY
MY
C
K
my
cm
Y
cy
M
y5
c75
m5
k70
y25
c50
m25
k50
y50
cmy50
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
CMY
RapidCheck® Control Strip 1.0 - FOGRA39 - Paper type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
%#)BVDM
'RAY#ON-sV
&OGRA
P
Ink coverage:
Cyan: 33% Magenta:
Yellow: 31% Black:
%#)BVDM'RAY#ONTROL3TRIP-s&/'2!s)3/[email protected]#)%,!"BLACKINKs/FFSETONGLOSSORMATTCOATEDPAPER04s)3/!MDs2EFERENCE&/'2!sWWWECIORGWWWBVDMORG
CM
CMY
CMY
K
K
CMYK
RapidCheck® Control Strip 1.0 - FOGRA39 - Paper type 1-2 Offset on gloss or matt coated paper - www.tucanna.com
P
CMY
m50
k30
y75
c5
m75
Total: -29%
GMG Color Management Workflow
K
Reduction on this page:
Cyan: -61% Magenta: -52%
+71%
Yellow: -52% Black:
FOGRA-certified proof
CMY
Total: 84%
Standardized print
according to ISO 12647
K
CMY
K
CMY
15%
41%
Optimized print data
according to ISO 12647
K
k5
cmy30
c25
Page optimized using profile:
IO_ISOcoated_V2_39L_TAC330_G1_V1.mx4
Separation
Reseparation
Color conversion
CMY
cmy70
GMG InkOptimizer
Internal data creation
Ink coverage:
Cyan: 13% Magenta:
Yellow: 15% Black:
External data
Ink-optimized / Printed with high magenta density
Print Sample
K
CMY
K
CMY
Ink-optimized / Printed with normal density
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