New Reference Print Conditions for the 21st Century
Dan Reid, RPimaging, INC
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Techkon makes innovative and high quality products for print color control. Our growing portfolio includes densitometers, spectrophotometers, plate readers, closed-loop print control and enterprise software designed for use in the pressroom.
Techkon products are chosen for their high accuracy, reliability and ease of operation.
Sponsor -
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Idealliance (International Digital Enterprise Alliance) is a not-for-profit membership organization that has been a leader in information technology and publishing since 1966.
Idealliance advances core technology to develop standards and best practices to enhance efficiency and speed information across the end-to-end digital media supply chain - creation, production, management, and delivery of knowledge-based multimedia content - digitally and in print.
www.idealliance.org
www.gracol.org
Sponsor -
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• Idealliance G7 Certified Expert - Since 2006 - • Work with clients in commercial,
publication, packaging, and grand format
• Help companies achieve: • ISO print standards
• Brand print specifications
• Expanded color gamut print workflows
• Print workflow automation and management
• Quality control program
Presenter, Dan Reid
[email protected] (866) RGB-CMYK
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• Brief overview of printing evolution
• Good ‘ol SWOP
• Compare color gamuts of CRPC1 - CRPC7
• Address how to use CRPC with legacy color files
• GRACoL 2013 and SWOP 2013
• Where to find CRPC ICC profiles and data sets
• Adjust data sets to your papers
• Questions and Answer
Agenda
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• Dramatic changes in mechanics of printing
• Increase of printing technologies
• Printing medias have evolved based on trends
• Color Measurement technology has improved
• Several software options for implementing a process control plan
• Improved metrics for communicating a color match
Printing has evolved
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• In commercial printing there is no longer film being produced to create plates. ComputerToPlate (CTP) and DirectToPress (DTP) have long been in place
• Proliferation of digital presses
• Grand Format printing
Printing Technology
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• Trend in papers towards bluer by using optical brightening agents (OBA) • Decade ago press stock had little OBA
• Todays printing papers can have quite a lot of OBA present
• Difficult to quantify with typical color measurement devices
Printing Substrates
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• Standards available to guide on achieving better and more predictable color (ISO)
• Mature software to guide adjustment to achieve predictable color
• Improvements in measurement technology
• Improvements in daylight simulator lighting
Technology
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Legacy Reference Print Conditions
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• ISO 12647-3 Coldest Newsprint
• Original data set TR 002-2007
• Updated ICC profiles for lower TAC and higher GCR in 2009
• Download 2009 ICC profiles: • http://www.snapquality.com/
Specifications for Newsprint Advertising Production
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• Most frequent updates to the specifications
• Well known GRACoL2006_Coated1v2 ICC profile was the first reference based on G7 method
• Latest reference, GRACoL2013_CRPC6, reflects currently available #1 press stock and new ISO standards
General Requirements for Applications in Commercial Offset Lithography
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• Many versions SWOP ICC profiles found • Some built well, others are horrible
• Most famous being U.S. Web Coated (SWOP) v2 ICC profile found in Adobe products
• This profile has been the default CMYK ICC profile since mid 1990s
Specifications for Web Offset Printing
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• Legend has it Thomas Knoll created this profile with his own software back in the 90s
• Based on CGATS TR-001-1995 dataset
• Film (TVI) is higher than current CTP or DTP • 20 - 22% film dot gain
• 12 - 15% CTP and DTP dot gain
U.S. Web Coated (SWOP) v2
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• Separating for film?
• Is the job really running on web printing press?
• Can’t you achieve better color than SWOP?
SWOPU.S. Web Coated (SWOP) v2
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• CGATS TR 001-1995
• Offset Litho - SWOP (Publication)
• CGATS TR 002-2007
• SNAP - Newsprint
• CGATS TR 003-2007
• SWOP - Grade 3, coated publication paper
• CGATS TR 005-2007
• SWOP - Grade 5, coated publication paper
• CGATS TR 006-2007
• GRACoL 2006
Well not really….
Just print to SWOP…..
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• ISO 12647 provides guidance for different print processes • Part 1: Measurement methods
• Part 2: Offset Litho
• Part 3: Cold Offset Litho on newsprint
• Part 4: Publication gravure printing
• Part 5: Screen printing
• Part 6: Flexo printing
• Part 7: Proofing processes working directly from digital data
• Part 8: Validation print processes working directly from digital data
Just print to SWOP…..
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• ISO 12647 is active and has regular updates • ISO 12647-1:2013 - Measurements
• ISO 12647-2:2013 - Commercial - offset litho
• ISO 12647-3:2013 - Newsprint - cold offset litho
• ISO 12647-4:2014 - Publication - gravure
• ISO 12647-5:2015 - Screen printing
• ISO 12647-6:2012 - Flexo printing
• ISO 12647-7:2013 - Proofing
• ISO 12647-8:2012 - Validation
ISO 12647 - Process control for the production of half-tone color separations, proof and production prints
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• ISO 12647 gives us guidance on process control for each printing industry
• ISO 12647 does not provide data sets or ICC references to use for use in separation or proofing
• ISO 15339-2 is a set of reference print conditions that are based on measurement data (characterization data)
Targets versus References
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• Printing from digital data across multiple technologies • Part 1: Principles
• Part 2: Characterized reference printing conditions, CRPC1 - CRPC7
• Based upon ISO 12647! • Process control aims to create characterization data sets used in CRPC
http://www.idealliance.org/downloads/isopas-15339
ISO/PAS 15339:2015
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• Color Reference Print Conditions • New reference print conditions
• ISO 12647 - Target values for printing
• Based upon G7 print calibration method
• ISO 10128:2009 - near neutral-scales
• M1 measurement conditions
• ISO 13655:2009 - M0, M1, M2, M3
• Explicit instructions available on how to attain the same results published as ISO 15339-1
CRPC1 - CRPC7
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• !! If you do not have a M1 measurement you should not be using the CRPC ICC profiles • M1 is needed on press to check
• M1 is needed in the proof verification too!
• M1 is needed to adjust paper white point of CRPC
• Continue using GRACoL 2006 and SWOP 2006 if you do not have a M1 measurement device
• Learn more about M1 measurement conditions: • http://www.idealliance.org/events/color-management-transformed-proofing-
press-matching-brightened-stocks — http://bit.ly/1o6H1lE
• http://www.idealliance.org/sites/default/files/M1%20WF_Paper%20Guidelines%20r16.pdf — http://bit.ly/1XQfWTD
M1 and M0 Measurement Devices
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CRPC1 - CRPC7 Cheat SheetAKA Similar To Full Description
CRPC1 ColdSetNews SNAP 2009 Typical ColdsetNews - Small gamut printing (newsprint)
CRPC2 HeatsetNews Typical HeatsetNews Moderate gamut printing on improved newsprint type paper
CRPC3 GRACoL 2013, uncoated PremUncoated Typical PremUncoated Utility printing on a matt uncoated type paper
CRPC4 SuperCal BetaSupercal Typical SuperCal General printing on super-calendared paper
CRPC5 SWOP 2013, coated SWOP 2006, #3 paper Typical PubCoated Typical publication printing
CRPC6 GRACoL 2013, coated GRACoL 2006, #1 paper Typical PremCoated Large gamut (typically commercial) printing
CRPC7 Extra Large Typical Extra Large Extra-large gamut printing processes
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http://standards.iso.org/iso/15339/-2
Download CRPC Data Sets
http://www.npes.org/programs/standardsworkroom/toolsbestpractices/characterizationdatasets.aspx
http://bit.ly/1X9rZNw
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http://www.color.org/registry/index.xalter
Download CRPC ICC Profiles
International Color Consortium
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Color Gamuts of CRPC1 - CRPC7
• CRPC1 - SNAP
• CRPC2 • CRPC3 - GRACoL Uncoated
• CRPC4 • CRPC5 - SWOP 2013 - #3
• CRPC6 - GRACOL 2013 - #1
• CRPC7
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Color Gamuts of CRPC1 - CRPC7
• CRPC1 • CRPC2 • CRPC3 - GRACoL Uncoated
• CRPC4 • CRPC5 • CRPC6 • CRPC7
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Color Gamuts of CRPC3 vs CRPC6
• CRPC1 • CRPC2 • CRPC3 - GRACoL Uncoated
• CRPC4 • CRPC5 • CRPC6 - GRACOL 2013 -#1
• CRPC7
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Color Gamuts of CRPC5 vs USWebCoated v2
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 - SWOP 2013 - #3 • CRPC6
• CRPC7 • U.S. WebCoated
(SWOP) v2 - TR001
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Color Gamuts of CRPC6 vs USWebCoated v2
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 • CRPC6 - GRACOL 2013 - #1
• CRPC7 • U.S. WebCoated
(SWOP) v2 - TR001
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CRPC6 vs USWebCoated v2
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 • CRPC6 - GRACOL 2013 - #1
• CRPC7 • U.S. WebCoated
(SWOP) v2 - TR001Assigned CRPC6 (What would happen if proofed as input ICC profile)
USWebCoated v2 Ref
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CRPC5 vs USWebCoated v2
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 - SWOP 2013 - #3 • CRPC6
• CRPC7 • U.S. WebCoated
(SWOP) v2 - TR001Assigned CRPC5 (What would happen if proofed as input ICC profile)
USWebCoated v2 Ref
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CRPC5 vs USWebCoated v2
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 - SWOP 2013 - #3 • CRPC6
• CRPC7 • U.S. WebCoated
(SWOP) v2 - TR001Converted to CRPC5 (Conversion to CRPC5 from USWebCoated v2)
USWebCoated v2 Ref
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• If assigning a new source CRPC ICC profile isn’t acceptable, you will have to convert • Standard ICC conversion
• Device Link ICC profiles
• Several options available for creating device link ICC profiles
• A handful of workflow tools support device link ICC profiles (DL)
• Some RIPs also support DL ICC profiles too
Converting legacy color
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• CRPC6
• M1 measurement data
• Primaries shift minutely, imperceptible from GRACoL 2006
• Paper white is bluer (L*A*B*) • GRACoL 2006 — 95*, 0*, -2*
• GRACoL 2013 — 95*, 1*, -4*
What about GRACoL 2013?
GRACoL 2006 GRACoL 2013
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•Caveats • Must have a M1 compliant measurement device in the
press room and in proofing
• Must have ISO 3664:2009 compliant lighting to inspect press sheets and proofs
What about GRACoL 2013?
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• ISO 3664:2009 Lighting Requirements • It’s not just lamps that need replacing
• Usually the clear lens between the lamps and the print needs replacing too
ISO 3664:2009 — Lighting
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• ISO 3664:2009 Lighting Requirements • Verify, check compliant
• Don’t assume!
ISO 3664:2009 - Validation
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M1 Measurements
*Simulated graphics, for illustration
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M1 Measurements
*Simulated graphics, for illustration
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M1 Measurements
*Simulated graphics, for illustration
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M1 Measurements
*Simulated graphics, for illustration
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Load CRPC data into SpectroDens
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• Use a CRPC reference data set as source
• Measure in M1 mode your press stock
• Adapt CRPC data to measured press stock color, substrate-corrected colorimetric aims (SCCA) • http://www.idealliance.org/downloads/substrate-relativity-calculator-
kit-20120606 — http://bit.ly/1VxqGWN
• http://www.npes.org/Portals/0/standards/docs/CGATS%2021%20Computational%20Spreadsheet.xls — http://bit.ly/1XhMxmW
Adapt CRPC reference to press stock
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SCCA Spreadsheet
Current Substrate
New Substrate
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What about CRPC7?
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 • CRPC6 • CRPC7
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What about CRPC7?
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 • CRPC6 • CRPC7
Durst RHO, 13oz Vinyl
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What about CRPC7?
• CRPC1 • CRPC2 • CRPC3
• CRPC4 • CRPC5 • CRPC6 • CRPC7
OCE Arizona, 22oz Vinyl
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• XCMYK Expanded-Gamut CMYK Beta Program • Goal is to provide a reference achievable using standard
inks with FM screening running at higher ink densities
• Litho and Digital
• Final results will be based upon submissions
• More info about this project: http://www.idealliance.org/content/xcmyk-expanded-gamut-cmyk-beta-program — http://bit.ly/1UvmC7h
Emerging print specifications
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• CRPC data sets and ICC profiles are freely available
• Only use CRPC if you have a M1 measurement device in at your press and proofing • Stick to GRACoL2006 and SWOP2006 if you have M0 devices
• You can probably switch from USWebCoated to the 2006 profiles. Proof to confirm.
• Verify your lighting is ISO 3664:2009 compliant by measurement • Don’t assume replacing lamps makes you compliant
Recap
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• Verify conformance to ISO and brand specifications
• Improve color fidelity while reducing production cost
• Color consistency and repeatability
• Efficiently process jobs
• Expanded color gamut characterization and workflow
Need Help?
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Contact us for FREE Color Audit
[email protected] | www.RPimaging.com (866) RGB-CMYK
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Questions? Use the chat box to post your questions
Thank You!
[email protected] (866) RGB-CMYK
New Reference Print Conditions for the 21st Century
Dan Reid, RPimaging, INC