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GB/T 17934.8-2021: Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 8: Validation print processes working directly from digital data
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Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 8: Validation print processes working directly from digital data
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GB/T 17934.8-2021
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Basic data | Standard ID | GB/T 17934.8-2021 (GB/T17934.8-2021) | | Description (Translated English) | Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 8: Validation print processes working directly from digital data | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A17 | | Word Count Estimation | 18,113 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 17934.8-2021: Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 8: Validation print processes working directly from digital data
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Graphic technology-Process control for the production of half-tone colour separations, proof and production prints-Part 8.Validation print processes working directly from digital data
ICS 37.100.01
A17
National Standards of People's Republic of China
Printing technology mesh color separation plate, proofs and production
Process control of printed matter. Part 8.Direct
Use digital data to verify the print production process
(ISO 12647-8.2012, IDT)
Released on 2021-05-21
2021-12-01 implementation
State Administration of Market Supervision and Administration
Issued by the National Standardization Management Committee
Foreword
GB/T 17934 "Printing Technology, Screen Color Separation, Proofs and Process Control of Production Printed Matter" is divided into 8 parts.
---Part 1.Parameters and measurement methods;
---Part 2.Lithographic offset printing;
---Part 3.Newsprint cold-set offset printing;
---Part 4.Publishing gravure;
---Part 5.Screen printing;
---Part 6.Flexographic printing;
---Part 7.Proofing process using digital data directly;
---Part 8.Direct use of digital data to verify the production process of printed matter.
This part is Part 8 of GB/T 17934.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
The translation method used in this part is equivalent to the adoption of ISO 12647-8.2012 "Printing technology screen adjustment of color separation plates, samples and production prints.
Process control. Part 8.Verification of printed matter production process using digital data directly."
The Chinese documents that have a consistent correspondence with the international documents cited in this section are as follows.
---GB/T 8941-2013 Determination of the specular gloss of paper and cardboard (ISO 8254-1.2009, MOD)
---GB/T 17934.1-2021 Printing technology, mesh color separation plate, sample sheet and process control of production printed matter No. 1
Part. Parameters and measurement methods (ISO 12647-1.2013, IDT)
---GB/T 22113-2008 Label image file format (TIFF/
IT) (ISO 12639.2004, ITD)
---GB/T 22771-2008 Filtered xenon arc lamp for printing technology printed matter and printing ink to evaluate light resistance (ISO 12040.
1997, MOD)
---GB/T 27935 (all parts) The use of pre-press data exchange PDF for printing technology [ISO 15930 (all parts)]
This section has made the following editorial changes.
---Correct the standard drafting specification errors and add ISO 15930 to the normative reference documents. Delete in reference file
ISO 15930.
---Adjust the order of Appendix A and Appendix B.
--- Correct the order of references.
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying these patents.
This part was proposed by the National Press and Publication Administration.
This part is under the jurisdiction of the National Printing Standardization Technical Committee (SAC/TC170).
Drafting organizations of this section. Shenzhen Yutong Packaging Technology Co., Ltd., Shenzhen Vocational and Technical College, Shanghai Publishing and Printing College
School, Shanghai Tobacco Packaging and Printing Co., Ltd., Xiamen Weihaotai Technology Co., Ltd., Zhuhai Tianwei Feima Printing Consumables Co., Ltd., Essomark
Zhunhua Service (Shandong) Co., Ltd., Zhejiang Huiri Environmental Testing Co., Ltd., Guangdong Yisheng Testing Co., Ltd., Shandong Gada Testing Co., Ltd.
Company, Zhejiang Anya Intelligent Technology Co., Ltd., Guangdong Xingyi Digital Printing Co., Ltd., Jiusi Testing Technology (Guangdong) Co., Ltd., Guangdong
Haochenwang Technology Co., Ltd., Shaanxi Runzheng Testing Technology Co., Ltd., Xi'an Nuofang Information Technology Co., Ltd., Jiangxi Yongzhuang Technology Co., Ltd.
Division, Jinhua Chengtuo Household Products Co., Ltd., Shaanxi Facida Electronics Co., Ltd., Shaanxi Juzhong Zhide Electronic Technology Co., Ltd.
The main drafters of this section. Zhang Xuliang, Guo Rui, Chen Chen, Kong Lingjun, Fang Enyin, Xu Ying, Qiao Huaixin, Zhang Ying, Zhang Zhihuan, Nan Shaowei, Huang Zhen,
Zheng Decan and Ma Lina.
Introduction
This part of GB/T 17934 specifies the characteristics and related test methods required by digital printed matter and the printing process to meet the requirements of “verification
Guidelines established by “printed matter”.
In most printing production processes, there are requirements for the visual display of the expected appearance of printed documents. This visual display can be used as
Part of the agreement between the client and the printer. When the visual display is produced and the expected printed product characteristics (color fidelity,
When there is only a very small tolerance between tone reproduction, registration, size, etc., it is usually called "same sheet". As the name suggests, he also constitutes a guest
Part of the contractual relationship between the user and the printing party is also used as the visual target of the printing operator in printing, and it is also a part of the final product.
Absolute reference basis for comparison. Of course, the production system that can produce the same sheet is generally expensive and requires careful operation.
And maintenance. GB/T 17934.7 stipulates the requirements for the system for synthesizing the same sheet and directly using digital data to produce the same sheet.
Recently, other forms of visual display of final printed products have appeared in the printing/proofing process because of the tendency of designers and printing buyers
In the production process, there is no need to prematurely incur high costs for adopting the same sheets that meet the requirements of GB/T 17934.7, unless it is necessary.
In many cases, the participants in the production need a hard copy visual reference sample of lower quality than the same one. In the past, these printed
The quality is uneven, often referred to as design proofs, concept proofs, layout prints, etc. The proofs of this quality level are referred to herein as "verification
printed matter".
Since the data is exchanged electronically, and the visual display of these data is produced in multiple venues, it is necessary to verify the printed matter.
Clear requirements to ensure its consistency throughout the work process. These requirements are relatively not so strict, especially for color
Fidelity, one of the purposes of this is to use a device with lower accuracy and cost than the production of the same sheet when producing verification prints.
Prepared. This part of GB/T 17934 lists the requirements for verification printed matter and production verification printed matter system.
Verification of printed matter is not intended to replace "same sheet" to predict the colors copied by the printing production equipment. It can be expected that with industry requirements
In addition to the development of imaging technology, revisions to the requirements for verifying printed matter and conforming to the same sheet will continue to be carried out in the future.
Printing technology mesh color separation plate, proofs and production
Process control of printed matter. Part 8.Direct
Use digital data to verify the print production process
Important note. The electronic file of this document contains color information that is conducive to the correct understanding of this document. Therefore, users should consider using color
Color printer to print this document.
1 Scope
This part of GB/T 17934 specifies the compliance requirements of a system that directly uses digital data to print hard copy verification prints.
The verification print is designed to simulate the expected appearance of the print under certain characteristic printing conditions.
This section does not apply to the determination of the compliance of production printing systems (digital or traditional), because many aspects of production printing do not include
In this section.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 18721-2002 Printing Technology Pre-press Digital Data Exchange CMYK Standard Color Image (CMYK/SCID) (ISO
12640-1.1997, IDT)
ISO 3664.2009 Printing Technology and Photography-Viewing Conditions (Graphictechnologyandphotography-Viewing
conditions)
ISO 8254-1 Paper and paperboard specular gloss determination Part 1.75° with condensed beam, TAPPI method (Paperand
board-Measurementofspeculargloss-Part 1.75degreeglosswithaconvergingbeam,TAPPI
method)
ISO 12040 Printing Technology Prints and Printing Inks Use Filtered Xenon Arc Lamps to Evaluate Light Resistance (Graphictechnology-
Printsandprintinginks-Assessmentoflightfastnessusingfilteredxenonarclight)
ISO 12639 Label Image File Format (TIFF/IT) [Graphic
technology-Prepressdigitaldataexchange-Tagimagefileformatforimagetechnology(TIFF/IT)]
ISO 12642-2 Printing Technology Four-color Printing Characteristic Description Input Data Part 2.Extended Data Set (Graphictech-
nology-Inputdataforcharacterizationof4-colourprocessprinting-Part 2.Expandeddataset)
ISO 12647-1 Printing Technology, Screen Adjustment, Process Control of Separation Plates, Proofs and Printed Products Part 1.Parameters and
Measurement method (Graphictechnology-Processcontrolfortheproductionofhalf-tonecolourseparations,
proofandproductionprints-Part 1.Parametersandmeasurementmethods)
ISO 13655.2009 Spectral measurement and chromaticity calculation of printed images in printing technology (Graphictechnology-Spectral
measurementandcolorimetriccomputationforgraphicartsimages)
ISO 15930 (all parts) Printing Technology Prepress Data Exchange PDF Use (Graphictechnology-Prepress
digitaldataexchangeusingPDF)
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