1、BSI Standards PublicationBS ISO 12647-3:2013Graphic technology Processcontrol for the production ofhalf-tone colour separations,proofs and production printsPart 3: Coldset offset lithography onnewsprintCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy
2、 Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 12647-3:2013.It supersedes BS ISO 12647-3:2005 which is withdrawn.The UK participation in its preparation was
3、 entrusted to TechnicalCommittee PAI/43, Graphic technology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The B
4、ritish Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 76601 5ICS 37.100.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 Febr
5、uary 2014.Amendments issued since publicationDate Text affectedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013 ISO 2013Graphic technology Process
6、control for the production of half-tone colour separations, proofs and production prints Part 3: Coldset offset lithography on newsprintTechnologie graphique Contrle du processus de confection de slections couleurs trames, dpreuves et de tirages Partie 3: Impression offset sans scheur sur papier jou
7、rnalINTERNATIONAL STANDARDISO12647-3Third edition2013-12-15Reference numberISO 12647-3:2013(E)Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 1
8、2647-3:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the inte
9、rnet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.i
10、so.orgPublished in SwitzerlandCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 12647-3:2013(E) ISO 2013 All rights reserved iiiContents PageFore
11、word ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Requirements 24.1 General . 24.2 Data files and printing forms 24.3 Proof or production print 45 Test methods 125.1 Computation of CIELAB colour coordinates and CIELAB colour differences 125.2 Control strip . 12Anne
12、x A (informative) Densities of ink set colours 13Annex B (informative) Grey reproduction and grey balance .14Annex C (informative) Process control targets .17Annex D (informative) Flexographic newspaper printing 18Annex E (informative) Additional printing conditions .19Annex F (informative) Handling
13、 differences in paper colour 22Bibliography .23Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 12647-3:2013(E)ForewordISO (the International Or
14、ganization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been establ
15、ished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardizati
16、on.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with
17、the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any pat
18、ent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For
19、an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for th
20、is document is ISO/TC 130, Graphic technology.This third edition cancels and replaces the second edition (ISO 12467-3:2005), which has been revised due to demands from customer experience. The revision introduces grey reproduction and grey balance calculation, a printing condition for standard newsp
21、rint, normative E *tolerances for primary and secondary colours, one general tone value increase curve, a change in the colouration of magenta, options to monitor the printing characteristics and a general clean up.ISO 12647 consists of the following parts, under the general title Graphic technology
22、 Process control for the production of half-tone colour separations, proof and production prints: Part 1: Parameters and measurement methods Part 2: Offset lithographic processes Part 3: Coldset offset lithography on newsprint Part 4: Publication gravure printing Part 5: Screen printing Part 6: Flex
23、ographic printing Part 7: Proofing processes working directly from digital data Part 8: Validation print processes working directly from digital dataiv ISO 2013 All rights reservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo repr
24、oduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 12647-3:2013(E)IntroductionWhen producing a half-tone colour reproduction it is important that the colour separator and printer have previously specified a minimum set of parameters that uniquely define the visual c
25、haracteristics and other technical properties of the planned print product. Such an agreement enables the correct production of suitable separations (without recourse to “trial-and-error”).For more information on the technical background refer to ISO 12647-1.It is the purpose of this part of ISO 126
26、47 to list and explain the minimum set of process parameters required to uniquely define the visual characteristics and related technical properties of a half-tone production print produced by coldset offset lithography on newsprint from a set of half-tone separation data.It is a further purpose of
27、this part of ISO 12647 to list values or sets of values of the primary parameters specified in ISO 12647-1 and related technical properties of a half-tone newspaper print produced from a set of half-tone colour separation data. When deemed useful, secondary parameters are also recommended for specif
28、ication.Provisions for flexographic printing can be found in informative Annex D. ISO 2013 All rights reserved vCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO
29、 12647-3:2013Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013Graphic technology Process control for the production of half-tone colour separations,
30、 proofs and production prints Part 3: Coldset offset lithography on newsprint1 ScopeThis part of ISO 12647 specifies a number of process parameters and their values to be applied when producing colour separations and printing forms for newspaper single or four-colour printing. The parameters and val
31、ues are chosen in consideration of the process, covering the process stages: “colour separation”, “making of the printing formed”, “OK print or proof” and “production printing”.This part of ISO 12647 is intended to enhance communication between printers, publishers and advertisers and to make print
32、buyers aware of the expected printed result in advance, enabling them to plan accordingly. This part of ISO 12647 defines tolerances, allowing for objective quality evaluations and raising the competitiveness of newspapers compared to other media.This part of ISO 12647 is applicable: to coldset offs
33、et production printing on newsprint that use colour separation data; by analogy to press printing from printing surfaces produced by direct imaging; to line screens and non-periodic screens, parameters given can be applied by analogy.Although this International Standard does not specify process cont
34、rol for flexographic printing, digital printing systems or letterpress production printing, the production aims defined by this International Standard may be applied when these printing technologies are used and where the printing result is intended to be similar to that produced by coldset offset l
35、ithography.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including
36、 any amendments) applies.ISO 5-3, Photography and graphic technology Density measurements Part 3: Spectral conditionsISO 2846-2, Graphic technology Colour and transparency of printing ink sets for four-colour printing Part 2: Coldset offset lithographic printingISO/TS 10128, Graphic technology Metho
37、ds of adjustment of the colour reproduction of a printing system to match a set of characterization dataISO 12647-1:2013, Graphic technology Process control for the production of half-tone colour separations, proof and production prints Part 1: Parameters and measurement methodsISO 12647-7, Graphic
38、technology Process control for the production of half-tone colour separations, proof and production prints Part 7: Proofing processes working directly from digital dataISO 13655:2009, Graphic technology Spectral measurement and colorimetric computation for graphic arts imagesINTERNATIONAL STANDARD I
39、SO 12647-3:2013(E) ISO 2013 All rights reserved 1Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 12647-3:2013(E)3 Terms and definitionsFor the
40、purposes of this document, the terms and definitions given in ISO 12647-1 and the following apply.3.1coldset offset lithographymethod of offset lithographic printing (conventional or waterless) where the inks set “dry” primarily by absorption into the print substrate3.2digital proof printdigital pri
41、nt of high colour accuracy, useable as reliable visual colour reference for printing, and as a part of a commercial agreement as defined in ISO 12647-74 Requirements4.1 GeneralDigital data files delivered for printing should be accompanied by a digital proof print, a press proof print, or an OK prin
42、t from a previous print run. An OK-print from a previous print run (or a press proof), being in conformance with the requirements for an OK-print stipulated in 4.3 and stored under appropriate conditions, shall be used as the reference for the OK-print.Digital proofs using an electronic display and
43、digital proof prints shall not be used to gather measurement values to be used as reference in this part of ISO 12647.NOTE On-press proof prints are test prints of the data files on a printing press. Most proofs are digital proof prints. However, for colour or content critical work sometimes there i
44、s a request for press proof prints using the same setup as the production print.4.2 Data files and printing forms4.2.1 Data filesData delivered for printing shall be in the colour formats CMYK or three components and should be exchanged in PDF/X data formats as defined in ISO 15930 (all parts).The i
45、ntended printing condition shall be indicated in case of PDF/X data exchange. In case of PDF/X the mechanisms provided by the specified data format shall be used. In case of other data formats, a printing condition description, a characterization data set, or an International Colour Consortium (ICC)
46、 output profile shall be communicated.Data other than CMYK shall be defined by colorimetric description using an ICC profile or other mechanism. An ICC CMYK output profile should be included. The rendering intent to be used with the output profile shall be communicated.If the characterization data o
47、r ICC output profile provided conflict with the printing conditions defined in this part of ISO 12647 one of the methods defined in ISO/TS 10128 shall be used for data adjustment toward the printing conditions defined in this International Standard.Checks are recommended to ensure the conformance of
48、 the data with the requirements of the printing standard.4.2.2 Printing form qualityThe resolution of the plate setter shall be set to a minimum frequency of 393cm-1and should be set to a minimum frequency of 500cm1.2 ISO 2013 All rights reservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 12647-3:2013ISO 12647-3:2013(E)The deviation of similar tone values of the data file in differ
