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BS ISO 12647-9:2021

BS ISO 12647-9:2021

$142.49

Graphic technology. Process control for the production of half-tone colour separations, proof and production prints – Metal decoration printing processes using offset lithography

Published By Publication Date Number of Pages
BSI 2021 24
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This document specifies requirements for systems that are used to produce offset prints for process colour reproduction on metallic substrates, which have been printed with a white coating. It is intended for flat printed sheet metal applications. It does not cover shaped or pre-formed metal such as pre-formed cans. Recommendations are provided with regard to appropriate test methods associated with these requirements.

This document differs from the method used to produce an offset print on paper or board in ISO 12647-2 in that it considers the colour values of a typical white coated metal substrate intended for metal decoration, using offset lithography and substrates that are independent of backing colour.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Requirements
4.1 General
4.2 Data files and printing forms
4.2.1 Data delivery
11 4.2.2 Printing forme quality
4.2.3 Screen frequency (periodic screens)
4.2.4 Dot size (non-periodic screens)
4.2.5 Screen angle (periodic screens)
12 4.2.6 Dot shape and its relationship to tone value (periodic screens)
4.2.7 Tone value sum
4.2.8 Grey reproduction and grey balance
4.3 Proof or production print
4.3.1 General
13 4.3.2 Visual characteristics of image components — Print substrate colour
14 4.3.3 Ink set colours (colorant description)
15 4.3.4 Tone value reproduction limits
4.3.5 Tone value increase and spread
18 4.3.6 Tolerance for image positioning
4.3.7 Conformance
19 5 Measurement methods
5.1 Computation of densities, CIELAB colour coordinates and CIELAB colour differences
5.2 Control strip
20 Annex A (informative) Grey reproduction and grey balance
22 Annex B (informative) Handling differences in coating colour
23 Bibliography

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BS ISO 12647-9:2021
$142.49