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GB/T 17934.6-2025 English PDF

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GB/T 17934.6-2025: Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 6: Flexographic printing
Status: Valid

GB/T 17934.6: Evolution and historical versions

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GB/T 17934.6-2025English414 Add to Cart 3 days [Need to translate] Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 6: Flexographic printing Valid GB/T 17934.6-2025
GB/T 17934.6-2014English489 Add to Cart 4 days [Need to translate] Graphic technology -- Process control for the production of half-tone colour separations, proofs and production prints -- Part 6: Flexographic printing Valid GB/T 17934.6-2014

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Basic data

Standard ID GB/T 17934.6-2025 (GB/T17934.6-2025)
Description (Translated English) Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 6: Flexographic printing
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard A17
Classification of International Standard 37.100.01
Word Count Estimation 20,291
Date of Issue 2025-05-30
Date of Implementation 2025-05-30
Older Standard (superseded by this standard) GB/T 17934.6-2014
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 17934.6-2025: Graphic technology - Process control for the production of half-tone colour separations, proof and production prints - Part 6: Flexographic printing


---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.
ICS 37.100.01 CCSA17 National Standard of the People's Republic of China Replaces GB/T 17934.6-2014 Printing technology Halftone color separation plates, proofs and process control for the production of printed products Part 6.Flexographic printing (ISO 12647-6.2020,IDT) Released on 2025-05-30 2025-05-30 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of contents

Preface III Introduction V 1 Scope 1 2 Normative references 1 3 Terms and Definitions 2 4 Requirement 3 4.1 Overview 3 4.2 Material input requirements 3 4.2.1 Overview 3 4.2.2 Distortion Correction 3 4.2.3 Sample Requirements 3 4.2.4 Digital data files 3 4.2.5 Film/Printing Plate Requirements 4 4.3 Printing target value 5 4.3.1 Overview 5 4.3.2 Screen adjustment parameters 5 4.3.3 Printing substrates 6 4.3.4 Ink Group Color 6 4.3.5 Reproducibility of ink color 7 4.3.6 Glossiness of ink set 7 4.3.7 Image positioning tolerance 7 4.3.8 Tone Value Increase (TVI) 8 4.3.9 Printing reproducibility 8 5 Information Communication 8 Appendix A (Normative) Transfer of spot color data 9 Appendix B (Informative) Information Exchange 10 Appendix C (Informative) Determination of dot quality parameters for screen adjustment on color separation films 12 C.1 Micro Line Target 12 C.2 Scanning Microdensitometer 12 Reference 14

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. This document is part 6 of GB/T 17934 "Printing technology - Process control of halftone color separations, samples and production prints" GB/T 17934 has published the following parts. --- Part 1.Parameters and measurement methods; --- Part 2.Offset lithography; --- Part 3.Newsprint coldset offset lithography; --- Part 4.Publishing gravure; --- Part 5.Screen printing; --- Part 6.Flexographic printing; --- Part 7.Proofing process using digital data directly; --- Part 8.Verification of print production processes using digital data directly. This document replaces GB/T 17934.6-2014 "Printing technology - Process control of halftone color separation sheets, samples and printed products" Part 6.Flexographic Printing, compared with GB/T 17934.6-2014, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) Deleted the specific provisions on the parameter value of screen line number (see 4.2.3 of the.2014 edition); b) Added requirements for target reference printing condition color gamut, spot color measurement and ICC profile in the digital data file section Description (see 4.2.4); c) Changed the film/plate requirements, and detailed the requirements for color separation plates, digital plates, and films (see 4.2.4,.2014 edition). 4.2.2); d) The L* value of the color of the printed substrate has been changed from ≥88 to >85 (see 4.3.3, 4.3.2.1 of the.2014 edition); e) The requirements for ink color have been changed from CIELAB, which specifies the printing of primary colors and secondary colors for different types of substrates. The values are adjusted to the CIELAB hue angle target values for the printed primary and secondary solid colors and are independent of the type of substrate (see 4.3.4, 4.3.2.3 of the.2014 edition); f) Added requirements for ink gloss (see 4.3.6); g) The provisions on the value of tone increase have been changed from setting specific value of tone increase for different substrate types to setting the value of tone increase for different substrate types. Matching of characterization data sets (see 4.3.8, 4.3.5 of the.2014 edition); h) The description parameters of the deviation tolerance of the original printing color have been changed from the original CIELAB color difference to the hue angle deviation and other parameters. Number (see 4.3.4, 4.3.2.3 of the.2014 edition); i) Changed the description parameter of the original CIELAB color difference to ΔE00, and adjusted Parameter values (see 4.3.4, 4.3.2.3 of the.2014 edition); j) Added the provisions on deviation tolerance and fluctuation tolerance of spot color in the ink color reproducibility part (see 4.3.5); k) Added “Table 5 List of attributes that need to be communicated” (see Chapter 5); l) Added Appendix A on the transmission of spot color data (see Appendix A). This document is equivalent to ISO 12647-6.2020 "Printing technology - Process control of halftone color separations, samples and production prints" Part 6.Flexographic printing. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document is submitted by the State Administration of Press and Publication. This document is under the jurisdiction of the National Printing Standardization Technical Committee (SAC/TC170). This document was drafted by. Shanghai College of Publishing and Printing, Huagong Liyan (Guangdong) New Materials Technology Co., Ltd., Guangdong Cailezhi Neng Packaging Technology Co., Ltd., Fujian Jinbaili Paper Products Co., Ltd., Zhuhai Huijin Quality Standard Technology Co., Ltd., Guangdong Wangying Environmental Protection Packaging Industry Co., Ltd., Jinan Quanhua Packaging Products Co., Ltd., Shenzhen Printing Industry Association, Guangdong Province Dongguan Quality Supervision and Inspection Center Center, Shanghai Printing Technology Research Institute Co., Ltd., Hangzhou Dianzi University, Qujing Qilin Fupai Printing Co., Ltd., Liaocheng University Dongchang Institute, Anhui Jiyou New Materials Co., Ltd., Shanghai Zidan Food Packaging and Printing Co., Ltd., Liaocheng Huacai Printing Co., Ltd., DuPont (China) R&D Management Co., Ltd., Dongguan Qingyang Packaging Products Co., Ltd., Xiamen Jihong Technology Co., Ltd., Changchun Jixing Printing Co., Ltd., Zhengzhou Huaying Packaging Co., Ltd., Jiangsu Tangcai New Materials Technology Co., Ltd., Guangdong Shiteng Smart Technology Co., Ltd. Ltd., Yiheng (Weihai) Information Technology Consulting Services Co., Ltd., Esko Trading (Shanghai) Co., Ltd., Shanghai Tobacco Packaging and Printing Co., Ltd. Company, Guangdong Xingyi Digital Printing Co., Ltd., Henan Jinhong Printing Co., Ltd., Zhengzhou Golden Leaf Industrial Co., Ltd., Tianjin Yi Hong Intelligent Packaging Technology Co., Ltd., Suzhou Yali Printing Co., Ltd., Shenzhen Xiandi Image Technology Co., Ltd., Shandong Shengxiang Printing Co., Ltd., Shenzhen Huacheng Packaging Technology Co., Ltd., and Ningxia Herui Packaging Co., Ltd. The main drafters of this document are. Kong Lingjun, Yang Shengwei, Chen Guangxue, Zhang Jin, Guo Zepeng, Bi Mingzhu, Xiao Wu, Zhao Shuyong, Wang Lijie, Chen Chunxia, Xueli Zheng, Jianping Shi, Qiang Wang, Guoliang Zhu, Xueliang Yu, Jinting Wang, Zhenhua Li, Hong Lin, Yifan Lu, Zhiqiang Wu, Song Zhao, Bo Yu, Heping Zhang, Wang Zhiming, Rao Fei, Zhang Dandan, Yu Peiyu, Ge Man, Duan Jinli, Bao Wei, Luo Long, Huang Zhen, Hou Hong, Zeng Longen, Ma Falai, Pi Xinjun, Zhong Xiaochun, Chen Gang, Yan Wei, Luo Yanhui, Guan Damin. The previous versions of this document and the documents it replaces are as follows. ---First published in.2014 as GB/T 17934.6-2014; ---This is the first revision.

Introduction

This document is part 6 of GB/T 17934 "Printing technology - Process control of halftone color separations, samples and production prints" GB/T 17934 is planned to consist of 9 parts. --- Part 1.Parameters and measurement methods; --- Part 2.Offset lithography; --- Part 3.Newsprint coldset offset lithography; --- Part 4.Publishing gravure; --- Part 5.Screen printing; --- Part 6.Flexographic printing; --- Part 7.Proofing process using digital data directly; --- Part 8.Verification of print production processes using digital data directly; --- Part 9.Metallic offset lithography. Printing technology Halftone color separation plates, proofs and process control for the production of printed products Part 6.Flexographic printing

1 Scope

This document specifies the data exchange requirements and targets for four-color flexographic printing used for packaging and publications including newspapers This document specifies the colorimetric target values for printing based on color characterization data and also includes the information required to specify the flexographic printing Reasonable setting of key parameter values during the processing and recommended tolerances. This document is directly applicable to. ---Flexographic printing of publications including magazines, product samples and commercial printing, as well as products including labels, cartons, flexible packaging, etc. Flexographic printing of product packaging. --- Halftone and continuous tone proofing processes for predicting colorimetric results in flexographic printing. This document also provides guidance on specifying spot colors used in flexographic printing.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. gy-Densitymeasurements-Part 3.Spectralconditions) Note. GB/T 11501-2008 Photographic density measurement Part 3.Spectral conditions (ISO 5-3.1995, IDT) ISO 2813 Paints and varnishes - Determination of gloss at 20°, 60° and 85° Note. GB/T 9754-2007 Paints and varnishes Determination of 20°, 60° and 85° specular gloss of paint films not containing metallic pigments (ISO 2813.1994, IDT) ISO /T S10128 Graphic technology - Printing system adjustment method for matching color characterization data sets tiondata) Note. CY/T 128-2015 Printing technology - Printing system adjustment method for matching color characterization data sets (ISO /T S10128.2009, IDT) ISO 12647-7 Graphic technology - Process control for halftone separations, proofs and production prints - Part 7.Direct from Note. GB/T 17934.7-2021 Printing technology - Process control of halftone color separations, samples and production prints - Part 7.Direct from digital Data proofing process (ISO 12647-7.2016, IDT) ISO 13468-1 Plastics-Determination of total light transmittance of transparent materials Part 1.Single beam instrument ISO 13468-2 Plastics-Determination of total light transmittance of transparent materials Part 2.Double beam instrument

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