The PSR ICC profils provided by ECI have a TAC 360%. We work with many printer house (imprimeur) in Europe, but they want a TAC at 270/280% for SC and LWC papier. If we use TAC 360% the document is separated with color serveur to lower the TAC by the printer. Why the ECI profils have a TAC as up 360% ?

Salut Hervé, PSR (Process Standard Rotogravure) has developed through decades based on the high quality print output in publication gravure. One power of the Gravure printing process is the intensity and gloss that a gravure ink recipe delivers on dark colors or image content. You'll not get that density in a traditional Offset print. This brilliance and power of a gravure printed image is partly achieved through a lot of ink and varnish on paper. Therefore TAC was set high. Depending on the printed job and due to improved separation algorithms in prepress, most of the jobs would today print with lower TAC. A final job-/engraving-/ink recipe-/paper-dependent optimal separation and TAC is mostly done in the best way in the prepress at the printers ... as they know best their conditions and capabilities. One other pro-aspect for a high TAC is the retouching quality. In a ECI-PSR-separation you are getting very even separations with CMY that goes harmoniously stronger into the dark end of an image. With many separations that are using a lower TAC from scratch, you get inversions of CMY in the dark ends ... and that’s not helpful at all for any CMYK-to-CMYK retouch or adjustment. (that’s why retouch should be in RGB ;-)) Cheers Juergen -----Ursprüngliche Nachricht----- Von: eci-en-bounces(a)lists.callassoftware.com [mailto:eci-en-bounces@lists.callassoftware.com] Im Auftrag von LYAUDET, Herve Gesendet: Donnerstag, 16. April 2015 16:22 An: eci-en(a)lists.callassoftware.com Betreff: Re: [ECI-EN] Question about ICC profiles provided by ECI Hello, I have many questions, I post one by one. 1st - PSR : The PSR ICC profils provided by ECI have a TAC 360%. We work with many printer house (imprimeur) in Europe, but they want a TAC at 270/280% for SC and LWC papier. If we use TAC 360% the document is separated with color serveur to lower the TAC by the printer. Why the ECI profils have a TAC as up 360% ? Sorry for my bad english. Hervé -- Hervé LYAUDET Color and workflow management. Tel. : +33 1 49 48 82 32 Port. : 06 27 78 47 53 H.lyaudet(a)altavia-paris.com Consider the environment, please don’t print this document unless you really need to.* De : Olaf Drümmer &lt;olaflist(a)callassoftware.com&gt; Répondre à : &quot;eci-en(a)lists.callassoftware.com&quot; &lt;eci-en(a)lists.callassoftware.com&gt; Date : jeudi 16 avril 2015 14:37 À : &quot;eci-en(a)lists.callassoftware.com&quot; &lt;eci-en(a)lists.callassoftware.com&gt; Cc : Olaf Drümmer &lt;olaflist(a)callassoftware.com&gt; Objet : Re: [ECI-EN] Question about ICC profiles provided by ECI Just ask! Olaf On 16 Apr 2015, at 14:09, "LYAUDET, Herve" &lt;h.lyaudet(a)altavia-paris.com&gt; wrote: Hi all, I need professional advice on the black generation and TAC of ICC profiles provided by ECI. May someone help me ? Thank. Hervé -- Hervé LYAUDET <Capture d¹écran 2015-04-16 à 09.45.40[1].png> <FE86F84D-0256-4655-B032-27F979CC937C[1].png> Color and workflow management. Tel. : +33 1 49 48 82 32 Port. : 06 27 78 47 53 H.lyaudet(a)altavia-paris.com <x-msg://662/> Consider the environment, please don’t print this document unless you really need to.* The information in this email and any attachments are the property ofALTAVIA or its affiliates and may contain proprietary and confidential information that is intended for the addressee(s) only. If you are not the intended recipient, please refrain from any disclosure, copying, distribution, retention or use of this information. You are hereby notified that such actions are prohibited and could be illegal. If you have received this e-mail in error, please immediately contact the sender and delete the e-mail. We appreciate your cooperation. 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