AS-2313.1.3-2005.pdf

AS 2313.1.32005 Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 1.3: AdhesionRolling ball tack AS 2313.1.32005 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 This Australian Standard was prepared by Committee PK-025, Packaging Code. It was approved on behalf of the Council of Standards Australia on 26 September 2005. This Standard was published on 28 October 2005. The following are represented on Committee PK-025: Australian Paints Manufacturers' Federation Canmakers Institute of Australia Department of Defence Printing Industries Association of Australia Victoria WorkCover Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. 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Contact us via email at mailstandards.org.au, or write to the Chief Executive, Standards Australia, GPO Box 476, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 05306. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.1.32005 Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 1.3: AdhesionRolling ball tack First published as AS 2313.32005. COPYRIGHT © Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia GPO Box 476, Sydney, NSW 2001, Australia ISBN 0 7337 6951 9 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.1.32005 2 PREFACE This Standard was prepared by the Standards Australia Committee PK-025, Packaging Code at the request of Australian Industry. The objective of this Standard is to specify a method for testing tack for low-tack adhesives on pressure-sensitive adhesive tapes. CONTENTS Page FOREWORD3 1 SCOPE4 2 REFERENCED DOCUMENTS4 3 DEFINITIONS4 4 REAGENTS4 5 APPARATUS AND MATERIALS.4 6 TEST CONDITIONS4 7 PREPARATION OF TEST SPECIMENS.5 8 PROCEDURE.5 9 TEST REPORT.5 Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 3 AS 2313.1.32005 FOREWORD This test is intended primarily for quality control use since it demonstrates good reproducibility within a single laboratory and shows the ability to detect batch-to-batch variations accurately if adhesive film thickness is held constant. Rolling ball tack is not intended as an investigative tool since for most pressure sensitive adhesive applications rolling ball tack results do not correlate well with application tack requirements. In the determination of tack by the rolling-ball method, a steel ball is released at the top of an incline, allowed to accelerate down the incline and roll on to a horizontal surface covered with a pressure-sensitive adhesive. Tack is determined by measuring the distance that the ball travels across the adhesive before stopping. There are two major retarding forces applied by the adhesive to the ball; the adhesion between the ball and the adhesive, often called “grab” and the “plowing effect” or energy required to push the adhesive out of the balls path. Test results are influenced by adhesive film thickness, bond of adhesive to backing and backing rigidity, so these factors should be carefully controlled for satisfactory comparisons. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.1.32005 4 Standards Australia www.standards.com.au STANDARDS AUSTRALIA Australian Standard Methods of test for single sided and double sided pressure-sensitive adhesive tape Method 1.3: AdhesionRolling ball tack 1 SCOPE This Standard specifies the method for determining the comparative tack of pressure- sensitive adhesion tape by rolling a ball over an adhesive to determine tack. NOTE: This test method is not recommended for the specification of end use products. 2 REFERENCED DOCUMENTS The following documents are referred to in this Standard: AS 2400 Packaging 2400.1 Part 1: Glossary of packaging terms 3 DEFINITIONS For the purpose of this Standard, the following terms and definitions and those in AS 2400.1 apply: 3.1 Tack The property of an adhesive that enables it to form a bond of measurable strength immediately after adhesive and adherent are brought into contact under low pressure. 4 REAGENTS 4.1 Isopropynol Reagent grade is required. NOTE: Acetone, reagent grade, may also be used. 5 APPARATUS AND MATERIALS The following apparatus and materials are required: (a) Inclined troughThe inclined trough is made of aluminium, which has a release lever at the top, which shall allow the ball to roll down the groove gaining momentum (using Figure 1). (b) BallThe ball shall be made of stainless steel which is resistant to corrosion. The diameter of the ball shall be 11 mm unless other wise specified by the purchaser. 6 TEST CONDITIONS Testing shall be conducted at 23 ±5°C and 50 ±5% relative humidity. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 5 AS 2313.1.32005 www.standards.com.au Standards Australia 7 PREPARATION OF TEST SPECIMENS The test specimen shall be a substrate coated with a pressure-sensitive adhesive. The roll shall be conditioned at 23 ±5°C and 50 ±5% relative humidity for 24 ±1 h prior to testing. The test specimen shall be between 375 mm and 400 mm in length. The test specimen shall have a width between 24 mm and 51 mm. Specific sample dimensions may be selected for the adhesive to be tested if it is agreed between the purchaser and the supplier. NOTE: Since the adhesive length only needs to be sufficient to allow the adhesive to stop the ball; and the width sufficiently wide enough to allow the ball track. 8 PROCEDURE The procedure shall be as follows: (a) Dispense the isopropynol (4.1) on the clean stainless steel ball (5(b) which is free from corrosion and wipe until dry. Dispense the isopropynol (4.1) on the clean inclined trough (5(a) which is free from corrosion and wipe until dry. NOTE: Either surgical gauze or untreated paper tissue can be used as the cleaning material, as these are lint free and contain no soluble additives. (b) Select a hard horizontal surface of sufficient size to conduct the test. NOTE: Metal or glass plates should be used. (c) Arrange the specimen to be tested, adhesive side up, in line with the inclined trough. The specimen shall be free of any wrinkles, creases or splices. The end of the specimen opposite the incline shall be held on the table with tape or a weight. Only one test shall be run on each specimen. (d) Prior to the roll of the ball and after cleaning inspect the ball for scratches, flat spots or any other damage that might impede the momentum of the ball. When positioning the ball on the upper side of the release a pair of dry, clean tongs shall be used. (e) Release the ball and allow it to roll to a stop on the adhesive. (f) Measure the distance from the point in millimetres where the ball initially contacts the adhesive to where the ball is in contact when it stops. All measurements shall be made to the nearest millimetre. 9 TEST REPORT 9.1 General The stopping distance measurement shall be the average of five tests results. 9.2 Report The following information shall be reported. (a) Identification of the adhesive tested and the substrate on which it is coated including type, source and manufactures code number. (b) The thickness of the adhesive and the substrate. (c) Conditions of test area, temperature and humidity. (d) Number of specimens tested. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.1.32005 6 Standards Australia www.standards.com.au (e) Maximum, minimum and average value of rolling ball distance. NOTE: A standard deviation for the value may also be included. (f) Observations on the visual inspection of the test, e.g. noticeable residue on the ball or lifting of the adhesive from the substrate. (g) Reference to this Australian Standard, i.e. AS 2313.1.3. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 www.standards.com.au Standards Australia 7 AS 2313.1.32005 4545 22 16 5 3333 65 665 16 10 120 137 178 25 64 76 5 21 30 8 16 16 5 8r 13 13 3232 25 6 7 Release Leaver Material-Spring Steel Adhesion tester body Material-Aluminium SECTION Spot face 32 exactly parallel with bare (level) Drill and tap holes DIMENSIONS IN MILLIMETRES FIGURE 1 INCLINE TROUGH TEST JIG Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 AS 2313.1.32005 8 NOTES Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 Standards Australia Standards Australia is an independent company, limited by guarantee, which prepares and publishes most of the voluntary technical and commercial standards used in Australia. These standards are developed through an open process of consultation and consensus, in which all interested parties are invited to participate. 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For more information phone 1300 65 46 46 or visit Standards Web Shop at www.standards.com.au Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 GPO Box 476 Sydney NSW 2001 Administration Phone (02) 8206 6000 Fax (02) 8206 6001 Email mailstandards.com.au Customer Service Phone 1300 65 46 46 Fax 1300 65 49 49 Email salesstandards.com.au Internet www.standards.org.au ISBN 0 7337 6951 9 Printed in Australia Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 This page has been left intentionally blank. Accessed by UNIVERSITY OF SOUTH AUSTRALIA on 09 May 2008 ?This document has expired. To access the current document, please go to your on-line service.?Please note that material accessed via our on-line subscription services is not intended for off-line storage, and such storage is contrary to the licence under which the service is supplied.