ISO 12632:2015

Graphic technology — Ink, paper and labels — Requirements on hot alkali penetration and resistance

ISO 12632:2015 specifies test methods for - penetrability and removal times of labels that have been wet glued on bottles intended to be refilled and reused, and - resistance of printed labels against hot alkaline solution. Test results always deal with systems comprising of substrates, ink films and varnish films if present. This International Standard is valid for label substrates and printed labels. Label substrates include metalized papers. The test procedures are also valid for the evaluation of inks and papers to be used in printing labels. ISO 12632:2015 does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this International Standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Technologie graphique — Encres, papier et étiquettes — Exigences de pénétrabilité et résistance aux alcalins chauds

General Information

• Status: Published
• Publication Date: 30-Nov-2015
• ICS: 87.080 - Inks. Printing inks
• Technical Committee: ISO/TC 130 - Graphic technology
• Drafting Committee: ISO/TC 130/WG 4 - Media and materials
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 09-Mar-2021

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 12632
First edition
2015-12-15
Graphic technology — Ink, paper and
labels — Requirements on hot alkali
penetration and resistance
Technologie graphique — Encres, papier et étiquettes — Exigences de
pénétrabilité et résistance aux alcalins chauds
Reference number
ISO 12632:2015(E)
©
ISO 2015

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ISO 12632:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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ii © ISO 2015 – All rights reserved

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ISO 12632:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Terms and definitions . 1
3 Principle . 1
3.1 Test method for the penetration time of hot alkaline solution on labels . 1
3.2 Test method for the removal time of labels by hot alkaline solution . 2
3.3 Test method for the resistance of labels against hot alkaline solution . 2
4 Apparatus and reagents . 2
4.1 Apparatus . 2
4.2 Reagents. 2
4.3 Preparation of the thymolphthaleine containing glue . 3
5 Specimens . 3
5.1 Penetration and removal time . 3
5.2 Resistance against hot alkaline solution . 3
6 Test procedure . 3
6.1 Penetrability time of hot sodium hydroxide solution through labels . 3
6.2 Removal time of labels . 4
6.3 Resistance against hot alkaline solution . 4
7 Test report . 4
© ISO 2015 – All rights reserved iii

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ISO 12632:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). 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-governmental, in liaison with ISO, also take part in the work.
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electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described 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 the possibility that some of the elements of this document may be the subject of
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any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO 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
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assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 130, Graphic technology.
iv © ISO 2015 – All rights reserved

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ISO 12632:2015(E)

Introduction
Bottles or other containers for beverages and soft drinks may be labeled with wet glued printed labels
of various substrates. If the bottles and containers are reused, they need to be cleaned thoroughly.
Often, bottles and containers are used for different types of drinks. This requires the removal of the
labels from the bottles and containers during the cleaning process. Usually, hot alkaline solution is
used within the cleaning facilities. To ensure the stability of the process, the penetration of the cleaning
solution through the label needs to occur rapidly. In addition, the labels need to stay intact to ease the
process of removing them from the cleaning agent. Also, no dying of the solution must occur so as to
minimize costs for the waste treatment of the cleaning solutions after neutralization. The test methods
given in this International Standard have been successfully applied in the European beverage industry
for decades and are also standardized as DIN Standards.
© ISO 2015 – All rights reserved v

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INTERNATIONAL STANDARD ISO 12632:2015(E)
Graphic technology — Ink, paper and labels —
Requirements on hot alkali penetration and resistance
1 Scope
This International Standard specifies test methods for
— penetrability and removal times of labels that have been wet glued on bottles intended to be refilled
and reused, and
— resistance of printed labels against hot alkaline solution.
Test results always deal with systems comprising of substrates, ink films and varnish films if present.
This International Standard is valid for label substrates and printed labels. Label substrates include
metalized papers. The test procedures are also valid for the evaluation of inks and papers to be used in
printing labels.
This International Standard does not purport to address all of the safety concerns, if any, associated
with its
...