From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/19098 Path: news.gmane.org!not-for-mail From: Duncan Hothersall Newsgroups: gmane.comp.tex.context Subject: Color separation Date: Thu, 17 Mar 2005 14:35:16 +0000 Message-ID: <423995A4.30707@capdm.com> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1111070174 4272 80.91.229.2 (17 Mar 2005 14:36:14 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Thu, 17 Mar 2005 14:36:14 +0000 (UTC) Original-X-From: ntg-context-bounces@ntg.nl Thu Mar 17 15:36:13 2005 Original-Received: from ronja.vet.uu.nl ([131.211.172.88] helo=ronja.ntg.nl) by ciao.gmane.org with esmtp (Exim 4.43) id 1DBw4c-0001JZ-Nf for gctc-ntg-context-518@m.gmane.org; Thu, 17 Mar 2005 15:34:06 +0100 Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id A46E212915; Thu, 17 Mar 2005 15:35:35 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (ronja.vet.uu.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 04672-04-5; Thu, 17 Mar 2005 15:35:32 +0100 (CET) Original-Received: from ronja.vet.uu.nl (localhost.localdomain [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 35EB7128D6; Thu, 17 Mar 2005 15:35:32 +0100 (CET) Original-Received: from localhost (localhost.localdomain [127.0.0.1]) by ronja.ntg.nl (Postfix) with ESMTP id 44739128D6 for ; Thu, 17 Mar 2005 15:35:30 +0100 (CET) Original-Received: from ronja.ntg.nl ([127.0.0.1]) by localhost (ronja.vet.uu.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 04672-04-4 for ; Thu, 17 Mar 2005 15:35:29 +0100 (CET) Original-Received: from liszt-09.ednet.co.uk (liszt-09.ednet.co.uk [212.20.226.21]) by ronja.ntg.nl (Postfix) with ESMTP id 4E7B712842 for ; Thu, 17 Mar 2005 15:35:29 +0100 (CET) Original-Received: from [192.168.254.41] (unknown [212.20.255.162]) by liszt-09.ednet.co.uk (Postfix) with ESMTP id 2306A225E68 for ; Thu, 17 Mar 2005 14:35:27 +0000 (GMT) User-Agent: Mozilla Thunderbird 0.9 (Windows/20041103) X-Accept-Language: en-us, en Original-To: ConTeXt List X-Enigmail-Version: 0.90.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime X-Virus-Scanned: by amavisd-new at ntg.nl X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.5 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl X-Virus-Scanned: by amavisd-new at ntg.nl X-MailScanner-From: ntg-context-bounces@ntg.nl X-MailScanner-To: gctc-ntg-context-518@m.gmane.org Xref: news.gmane.org gmane.comp.tex.context:19098 X-Report-Spam: http://spam.gmane.org/gmane.comp.tex.context:19098 Sorry for all the messages; I am exploring things I don't really understand. I hope someone can enlighten me! With the following colour set-up: \setupcolors[rgb=no,cmyk=yes,spot=yes,state=start] \definecolor[PantoneTwoNineFour][c=1,m=.56,y=0,k=.18] \definecolor[IFSbluetabletint][PantoneTwoNineFour][p=.15] and then using this tint as a textbackground and also as a backgroundcolor in frames, I am getting complaints from my printers that black overprinted on the tint is 'knocking out' the tint and leaving white on the separated plate. I have read and re-read the useful msplit.pdf which suggests that the implicit criterium=all will negate this effect, but perhaps I have misunderstood? Two questions: 1. how can I stop black overprinting from knocking out the tint, and 2. is there a way I can check that it is working properly without sending it to the printer each time? Thanks as ever for any help. Do I need to post example output? Duncan