ISO 22934:2021

INTERNATIONAL ISO
STANDARD 22934
First edition
2021-05
Graphic technology — Communication
of offset ink properties
Technologie graphique — Communication des propriétés de l'encre
offset
Reference number
©
ISO 2021
© ISO 2021
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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 2
5 List of ink properties to be communicated . 2
5.1 General . 2
5.2 Intended usage . 2
5.3 Light fastness . 2
5.4 Transparency . 2
5.5 Drying mechanism . 3
5.6 Resistance to solvents and alkali . 3
5.6.1 Ethanol . 3
5.6.2 Solvent mixture . 3
5.6.3 Alkali . 3
5.7 Fresh conditioning . 3
5.8 Additional information . 3
Bibliography . 4
Foreword
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This document was prepared by Technical Committee ISO/TC 130, Graphic technology.
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iv © ISO 2021 – All rights reserved

Introduction
Offset printing inks are special purpose, complex mixtures of chemicals intended to be applied on a
substrate by offset printing. They have customized properties and defined drying mechanisms resulting
in ink films with standard or customized properties. This document establishes requirements on the
communication of offset ink properties, aiming to the optimized planning of printing and to ensure the
inks have the appropriate properties for the intended use of the printed products. Examples are the
use of alkali resistant inks for combined use with dispersion varnishes to avoid colour changes after
printing or the use of higher light fast inks for outdoor applications.
For the printing of food packaging, additional requirements are in continuing development. Often,
these are related to the usability of particular substances within the inks. Printers of food packaging
are recommended to stay in close contact to their ink suppliers and industry federations and to follow
actual developments in this are
...