March 2005 - ECI-EN - lists.callassoftware.com

by ip PSP

Well, one of my customers, it's going to print a test job with some images like the Altona test suit ones, some special color patches, an ECI 2002 color chart, but his question is: Witch are the standard densities to print with UVI inks on polypropylene and PVC medias?, is there any ISO applicable to the packaging sector?. Best regards. Leon B. Garcia PSP

18 years, 4 months

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Monitor color profiles

by Age Bosma

Hi, Someone recommended me to have a look at the eciRGB color profile. Since I'm new to using color profiles I'm getting a bit confused. I hope you can help me out. I see the advantages of using the eciRGB color profile and I would like to do so as much is possible but what about the monitor color profiles that can be used in Windows? Is it recommended to use the eciRGB color profile for this purpose as well? Or is this something completely different? Microsoft states that a color profile provided by the manufactures of the monitor should be used since it's monitor specific. Though most manufactures don't provide a color profile for a specific monitor at all. Am I wrong? From what I've been told is that sRGB isn't realy recommended to be used, so what about changing color profiles used in images? E.g. a lot of images use the sRGB color profile and some use the AdobeRGB profile, is it recommended to alter the color profile of images to eciRGB or would this only degrade the quality of the image? I hope you can clarify things a bit for me. Thanks in advance, Age Bosma

19 years

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Re: Cyan ink ISO Lab values not correct

by Paul Sherfield

Hello Is anybody seeing this issue? When using the Lab values to process control a press to ISO 12647/2-2004 I have found, on a number of occasions, that the cyan ink is 4 to 8 delta E out. The other process colours are usually below 2. These are ISO standard inks from major manufactories. I am controlling the process with an GM SpectroEye, using the BestMatch function, and the ISO data as the reference. I am then checking the process colour differences using Alwans Color Pursuit colour workflow analyse tool. Are these figures for the cyan ink common, are they acceptable. I do not think so on a 'blue'. Regards Paul Sherfield The Missing Horse Consultancy Ltd Telephone: 01442 871752 Mobile: 07899 906385 Apple Solutions Expert-Print & Publishing This email and any attachments may be confidential and are intended solely for the use of addressee. If you are not the intended recipient of this message, any disclosure, copying or other distribution is strictly prohibited and may be unlawful. If you have received this message in error, please notify the sender and delete all copies from your system. Email may be susceptible to data corruption, interception and unauthorised amendment. We do not accept liability for any such corruption, interception or amendment or the consequences thereof. We do not accept liability for any action or inaction by the recipient as a result of advice or information contained within this email.

19 years, 1 month

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AW: [ECI-EN] ISOcoated.icc Grey Balance

by Meinecke, Karl Michael (bvdm)

Please note: Annex C of ISO 12647-2:2004, dealing with grey balance, is *informative* (not normative). Kind Regards Karl Michael Meinecke Bundesverband Druck und Medien e.V. (bvdm) German Printing and Media Industries Federation (bvdm) Biebricher Allee 79 | D-65187 Wiesbaden Postfach 18 69 | D-65008 Wiesbaden Fon +49(0)611 - 80 31 68 | Fax +49(0)611 - 80 32 68 mailto:km@bvdm-online.de | URL www.bvdm.org ------------------------------------------------------ ATS | Altona Test Suite Application Kit www.altonatestsuite.com DPF | Digitalproof-Forum 2005 Stuttgart www.digitalproof-forum.de MSD | MedienStandard Druck 2004 www.bvdm.org/Aktuelles/Downloads.php bvdm-Publikationen recherchieren und bestellen http://www.point-online.de -----Ursprüngliche Nachricht----- Von: Abe Hayhurst [mailto:abe@wedographics.com] Gesendet: Dienstag, 22. März 2005 21:52 An: eci-en(a)lists.transmedia.de Betreff: [ECI-EN] ISOcoated.icc Grey Balance I have downloaded the new ISO profiles that are supposed to conform to ISO 12647-2:2004. In annex C of ISO 12647-2:2004, it lists "CMYK values for use in grey balance patches" as the following values: Quarter tone Cyan 25 Magenta 19 Yellow 19 Mid-tone Cyan 50 Magenta 40 Yellow 40 Three Quarter tone Cyan 75 Magenta 64 Yellow 64 If you lookup the LAB values of these percentages using either absolute or relative colorimetric rendering intent, you will see that the mid-tone and quarter tone have negative A* values and near zero B* values whereas the paper and has a near zero positive A* value and a negative B* value. Tints of Black only that have the same Luminance values as the grey balance patches have A* and B* values much more similar to the paper than that of the gray balance patches. These values do not seem correct. Am I understanding this correctly? Thanks, Abe Hayhurst We Do Graphics, Inc. 1150 N. Main St. Orange, CA 92867 714-997-7390 abe(a)wedographics.com _______________________________________________ ECI-EN mailing list ECI-EN(a)lists.transmedia.de http://lists.transmedia.de/mailman/listinfo/eci-en

19 years, 1 month

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ISOcoated.icc Grey Balance

by Abe Hayhurst

I have downloaded the new ISO profiles that are supposed to conform to ISO 12647-2:2004. In annex C of ISO 12647-2:2004, it lists "CMYK values for use in grey balance patches" as the following values: Quarter tone Cyan 25 Magenta 19 Yellow 19 Mid-tone Cyan 50 Magenta 40 Yellow 40 Three Quarter tone Cyan 75 Magenta 64 Yellow 64 If you lookup the LAB values of these percentages using either absolute or relative colorimetric rendering intent, you will see that the mid-tone and quarter tone have negative A* values and near zero B* values whereas the paper and has a near zero positive A* value and a negative B* value. Tints of Black only that have the same Luminance values as the grey balance patches have A* and B* values much more similar to the paper than that of the gray balance patches. These values do not seem correct. Am I understanding this correctly? Thanks, Abe Hayhurst We Do Graphics, Inc. 1150 N. Main St. Orange, CA 92867 714-997-7390 abe(a)wedographics.com

19 years, 1 month

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Re: [ECI-EN] ISO 12647-2 Paper Type 4

by Peter Kleinheider

Hello Yann Sorry not having an advise for you. I ran into the same problem over here in Austria. When I set up a press for P4 I try to find a paper with very little optical brighteners. Then I define the densities. Then I print an ECI-2002 Chart and compare the values with the IsoUncoated values. Sometimes it is necessary to generate a new Profile - I alter the Fogra29 Values using PrintOpen. This is methode is most of the time better than generating a profile from the measured print. best regards/mit freundlichen Gru:ssen Inpetto - Peter Kleinheider PrePress Consultant & Workflow Programming St. Po:ltnerstr. 26 3130 Herzogenburg AUSTRIA ________________________________ Mobil: +43/650/2600099 peter(a)inpetto.cc Am 16.02.2005 um 21:24 schrieb Yann Bouckaert: > Hello, > > I am involved in bringing a sheetfed press to ISO 12647-2:2004 > printing standards for paper type 1, 2 and 4. Therefore, I measured > all common printing stock that this particular customer uses with a > Gretag Spectrolino, and ranked them according to the conformity of the > Lab values for these particular paper types. It was no problem finding > paper fit for types 1 and 2, but every sample I took of his uncoated > white stock was too blue. The b* values were going from -6.4 to -7.2 > (white backing). > My advice to him was to get some Zanders Zeta Matt white, because that > was used for the Altona tests. > Is there any other paper that qualifies? > > Best wishes, > Yann Bouckaert > Sagam > Belgium > _______________________________________________ > ECI-EN mailing list > ECI-EN(a)lists.transmedia.de > http://lists.transmedia.de/mailman/listinfo/eci-en

19 years, 1 month

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Re: All companies using ISO 12647/2-2004

by Robert Banbury

Hi everyone, You may also be interested to know that in the UK, the PPA are expanding their very successful pass4press, proof4press and pic4press specifications to include a new initiative, print4press. It's early days yet in the project's development, but it seems destined to involve some form of accreditation for UK printers using ISO 12647 with various ISO spec. paper types + print processes. Look out for news on the PPA website - http://www.ppa.co.uk/pass4press/index.html With best wishes, Rob Banbury, The Economist Newspaper Ltd

19 years, 1 month

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All companies using ISO 12647/2-2004

by daniel magee

Hi, Is there a website anywhere of all the companies that are using ISO 12647/2-2004, especially printers and pre-press houses and anyone converting to this standard? If not can one be created and displayed on the eci website? As the Pantone Printer Accreditation Program also uses this standard can they help in the creation of any list? Thanks, Daniel.

19 years, 1 month

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sss

by John Campbell

"Twenty years from now you will be more disappointed by the things you did not do than by the ones you did. So throw off the bowlines, sail away from the safe harbor. Catch the tradewinds in your sails. Explore. Dream." Mark Twain

19 years, 1 month

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ECI-EN March 2005