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    BS ISO 12647-4-2014 Graphic technology Process control for the production of half-tone colour separations proof and production prints Publication gravure printing《印刷技术 网目调分色片、样张和印刷.pdf

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    BS ISO 12647-4-2014 Graphic technology Process control for the production of half-tone colour separations proof and production prints Publication gravure printing《印刷技术 网目调分色片、样张和印刷.pdf

    1、BSI Standards PublicationBS ISO 12647-4:2014Graphic technology Processcontrol for the production ofhalf-tone colour separations,proof and production printsPart 4: Publication gravure printingBS ISO 12647-4:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 12

    2、647-4:2014.It supersedes BS ISO 12647-4:2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PAI/43, Graphic technology.A list of organizations represented on this committee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

    3、 include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 76450 9ICS 37.100.01Compliance with a British Standard cannot confer immunity fromlegal obligations.This

    4、British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2014.Amendments issued since publicationDate Text affectedBS ISO 12647-4:2014 ISO 2014Graphic technology Process control for the production of half-tone colour separations, proof and product

    5、ion prints Part 4: Publication gravure printingTechnologie graphique Contrle des processus de confection de slections couleurs trames, dpreuves et de tirages Partie 4: Processus de gravureINTERNATIONAL STANDARDISO12647-4Second edition2014-07-15Reference numberISO 12647-4:2014(E)BS ISO 12647-4:2014IS

    6、O 12647-4:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All 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 i

    7、nternet 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 ww

    8、w.iso.orgPublished in SwitzerlandBS ISO 12647-4:2014ISO 12647-4:2014(E) ISO 2014 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 Requirements 24.1 General . 24.2 Data file and printing forme 34.3 On-press proof and producti

    9、on print 4Annex A (informative) Gamut types 8Annex B (informative) Grey reproduction and grey balance .13Bibliography .17BS ISO 12647-4:2014ISO 12647-4:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).

    10、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 established has the right to be represented on that committee. International organizations, governmental and non-g

    11、overnmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described

    12、 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 the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to th

    13、e 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 patent rights identified during the development of the document will be in the Introduction and/or on the ISO

    14、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 an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as w

    15、ell 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 this document is ISO/TC 130, Graphic technology.This second edition cancels and replaces the first edition (

    16、ISO 12647-4:2005), which has been technically revised with the following changes: deletion of film based requirements; changes in proof requirements; changes in printing conditions; changes in the colouration of the primary and secondary solids; general clean up.ISO 12647 consists of the following p

    17、arts, under the general title Graphic technology 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 gravu

    18、re printing Part 5: Screen printing Part 6: Flexographic printing Part 7: Proofing processes working directly from digital data Part 8: Validation print processes working directly from digital dataiv ISO 2014 All rights reservedBS ISO 12647-4:2014ISO 12647-4:2014(E)IntroductionThis part of ISO 12647

    19、 lists values or sets of values of the primary process parameters specified in ISO 12647-1 and related technical properties of a gravure publication print. Where deemed useful, secondary parameters are also specified.The purposes of this part of ISO 12647 are: to list and explain the minimum set of

    20、primary process parameters required to uniquely define the visual characteristics and related technical properties of a half-tone proof or production print produced from digital data; to give the definitions for the general terms necessary for process control; to describe the measurement methods and

    21、 the requirements for reporting the results.The purpose of a proof print is to simulate the visual characteristics of the finished print product as closely as possible. In order to visually simulate particular print, off-press proofing processes might require values for solid tone coloration and ton

    22、e value increase which are different from those of the printing process they are meant to simulate. This is caused by differences in phenomena such as gloss, light scatter (within the print substrate or the colorant), metamerism, and transparency. Such differences are likely for those off-press proo

    23、fing processes in which the print substrate, the colorants, and the technology for applying them are significantly different from gravure publication printing. In such cases, the user or the supplier should ensure that appropriate corrections are specified. Another problem area is the matching of a

    24、digital off-press proof to a double-sided print on a less-than-opaque, lightweight printing paper as used in publication gravure printing. If it is deemed necessary, for image quality reasons, to proof with colour management profiles based on measurements with substrate backing rather than black bac

    25、king, there will be an unavoidable difference between proof and production prints. This fact needs to be communicated to all parties concerned. ISO 2014 All rights reserved vBS ISO 12647-4:2014BS ISO 12647-4:2014Graphic technology Process control for the production of half-tone colour separations, p

    26、roof and production prints Part 4: Publication gravure printing1 ScopeThis part of ISO 12647 specifies a number of process parameters and their values to be applied to four-colour publication gravure printing. The parameters and values are chosen in view of the complete process covering the process

    27、stages “colour separation”, “making of the printing forme”, “proof production”, and “production printing”.This part of ISO 12647 is applicable, directly, to publication gravure printing, including magazines, catalogues, and commercial materials, directly, to half-tone and continuous tone proofing pr

    28、ocesses that predict the colourimetric results of gravure printing, and by analogy, to process-colour gravure package printing.It is not directly applicable to the specifics of the transformations necessary to relate digital input data to the data used to create the cylinder engraving data and/or th

    29、e proofing process.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 (i

    30、ncluding any amendments) applies.ISO 8254-1, Paper and board Measurement of specular gloss Part 1: 75 degree gloss with a converging beam, TAPPI methodISO 12642-2, Graphic technology Input data for characterization of 4-colour process printing Part 2: Expanded data setISO 12647-1, Graphic technology

    31、 Process control for the production of half-tone colour separations, proof and production prints Part 1: Parameters and measurement methodsISO 12647-7, Graphic technology Process control for the production of half-tone colour separations, proof and production prints Part 7: Proofing processes workin

    32、g directly from digital dataISO 13655:2009, Graphic technology Spectral measurement and colorimetric computation for graphic arts imagesISO 15930-4, Graphic technology Prepress digital data exchange using PDF Part 4: Complete exchange of CMYK and spot colour printing data using PDF 1.4 (PDF/X-1a)ISO

    33、 15930-6, Graphic technology Prepress digital data exchange using PDF Part 6: Complete exchange of printing data suitable for colour-managed workflows using PDF 1.4 (PDF/X-3)INTERNATIONAL STANDARD ISO 12647-4:2014(E) ISO 2014 All rights reserved 1BS ISO 12647-4:2014ISO 12647-4:2014(E)ISO 15930-7, Gr

    34、aphic technology Prepress digital data exchange using PDF Part 7: Complete exchange of printing data (PDF/X-4) and partial exchange of printing data with external profile reference (PDF/X-4p) using PDF 1.63 Terms and definitionsFor the purposes of this document, the terms and definitions given in IS

    35、O 12647-1 and the following apply.3.1improved newsprintpaper with, compared to ordinary newsprint, a higher smoothness, a higher brightness, and a filler content up to 20 %3.2engraving pitchPreciprocal of average cell spacing on a gravure cylinder, evaluated from the following formula:Pab=()12/where

    36、a is the distance between the same points on two adjacent cells in the printing direction;b is the distance between adjacent circumferential tracks of the engraving stylus.3.3solid colourprinted area that corresponds to the maximum cell volume identified for the combination of gravure engraving para

    37、meters4 Requirements4.1 General4.2 and 4.3 are based on the assumption that input for gravure printing comprises digital data that defines the data tone values (equivalent to the tone values in offset processes). The specifics of the transformations necessary to relate these data to the data used to

    38、 create the cylinder engraving data and/or the proofing process are the responsibility of the organization involved and are not specified in this part of ISO 12647.The substrate categories of gravure printing, identified by the paper principally used, defined for this part of ISO 12647, are as follo

    39、ws:For Gamut Type 1 substrate category S1 (coated paper of 70 g/m2or greater); substrate category S2 (lightweight coated paper); substrate category S3 (“combined LWC paper and SC paper”);NOTE CRPC 5 of ANSI. substrate category S4 (super-calendered paper); substrate category S5 (improved or enhanced

    40、newsprint);2 ISO 2014 All rights reservedBS ISO 12647-4:2014ISO 12647-4:2014(E)For Gamut Type 2 substrate category S1 (LWC plus, improved lightweight coated paper); substrate category S2 (LWC standard, standard lightweight coated paper); substrate category S3 (SC plus, improved super-calendered pape

    41、r); substrate category S4 (SC standard, standard super-calendered paper); substrate category S5 (News plus, improved newsprint).While these substrate categories of gravure printing are identified in terms of the paper principally used, they can be used on any stock for which the printer is capable o

    42、f achieving the colours specified in Tables A.1 or A.2, see also Figures A.1 and A.2, and thus the associated colour gamut.Where appropriate, the applicable clauses of ISO 12647-1 are referenced for the definition of the data and measurement conditions.4.2 and 4.3 are arranged according to the order

    43、 set out in ISO 12647-1; they also depend on it for the general principles, the definition of the data, the measurement conditions, and the reporting style.In the absence of any other agreements between the print provider and printer, data intended for publication gravure printing in North America s

    44、hall be prepared for and proofed based upon Characterized Reference Printing Condition (CRPC) 5 of ANSI CGA/TS 21-2. For this situation, it shall be the responsibility of the gravure printer to match the appearance defined by CRPC 5 to the satisfaction of the publisher. CRPC 5 is compatible with pri

    45、nting condition S3, Gamut Type 1.4.2 Data file and printing forme4.2.1 Data filesDigital data files supplied for printing should conform to the latest edition of ISO 15930-4, ISO 15930-6, and ISO 15930-7 or to ISO 12639.Supplied data files conforming to ISO 15930-4, ISO 15930-6, and ISO 15930-7 shal

    46、l also include an identification of the intended printing condition. Where the intended printing condition is a printing condition included in the registry of characterizations maintained by the ICC, as described in ICC.1, the name used in the ICC registry can be used as the identification. If the i

    47、ntended printing condition is not included in the ICC registry, characterization data specified using the target defined in ISO 12642-2, or an ICC output profile derived from it, shall be included. An ICC output profile derived from the appropriate characterization data should also be included in al

    48、l cases. In any situations where the rendering of the data, when printed, is intended to be other than colourimetric (as specified in ICC.1) an ICC output profile derived from the appropriate characterization data shall be included.All continuous tone raster data (CT) shall be at a resolution that e

    49、quals or exceeds 120 cm1. If line work raster data (LW) are provided, they shall be at a resolution of three to six times that of the continuous tone data. If text is provided as CT data it should be anti-aliased.A proof print can accompany digital data and where provided, it shall conform to the indicated printing condition.4.2.2 Off-press proof from digital dataThe off-press proof is a simulation of the intended gravure printing condition. It is produced directly from the data used to


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