1、BRITISH STANDARD BS EN 14510:2005 Adhesives for leather and footwear materials Solvent-based and dispersion adhesives Determination of sole positioning tack (spotting tack) The European Standard EN 14510:2005 has the status of a British Standard ICS 83.180 BS EN 14510:2005 This British Standard was
2、published under the authority of the Standards Policy and Strategy Committee on 9 July 2005 BSI 9 July 2005 ISBN 0 580 46102 5 National foreword This British Standard is the official English language version of EN 14510:2005. The UK participation in its preparation was entrusted to Technical Committ
3、ee PRI/52, Adhesives, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI
4、 Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for i
5、ts correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK intere
6、sts informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 12, an inside back cover and a back cover. The BSI copyright notice displayed in this docu
7、ment indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 14510 May 2005 ICS 83.180 English version Adhesives for leather and footwear materials - Solvent-based and dispersion adhesives - Determina
8、tion of sole positioning tack (spotting tack) Adhsifs pour cuir et matriaux de la chaussure - Adhsifs base de solvants ou en dispersion - Dtermination du tack laffichage (tack immdiat) Klebstoffe fr Leder und Schuhwerkstoffe - Lsemittel- und Dispersionsklebstoffe - Bestimmung des Sohlensetz-Tack (Se
9、tz-Tack) This European Standard was approved by CEN on 25 March 2005. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographi
10、cal references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN
11、member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
12、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN
13、 All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 14510:2005: EEN 14510:2005 (E) 2 Contents page Foreword 3 Introduction4 1 Scope .5 2 Normative references .5 3 Terms and definitions.5 4 Principle.6 5 Safety .6 6 Adhesive and materials
14、6 7 Apparatus 6 8 Test pieces 8 9 Procedure 9 10 Evaluation and expression of results10 11 Test report .10 Bibliography.12EN 14510:2005 (E) 3 Foreword This European Standard (EN 14510:2005) has been prepared by Technical Committee CEN/TC 193 “Adhesives”, the secretariat of which is held by AENOR. Th
15、is European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2005, and conflicting national standards shall be withdrawn at the latest by November 2005. According to the CEN/CENELEC Internal Regulations
16、, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
17、Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14510:2005 (E) 4 Introduction Some adhesives based on special polymers (polychloroprene, polyurethane) are widely used in the footwear industry for sole attaching, coated on an upper and a sole material. The appa
18、rently dry coats show the property of “sole positioning tack“ (or “spotting tack“) either at room temperature (“cold positioning tack“) or when heated to a specific temperature (“hot positioning tack“). Because of the short pressing time required in the bonding process these adhesives allow a very e
19、conomical production of footwear. “Sole positioning tack“ is a very complex rheological phenomenon depending particularly on temperature, contact time and pressure applied. This European Standard specifies a conventional method for assessing this phenomenon. This method is suitable for quality contr
20、ol in adhesive manufacture as well as in shoe production 1 2. Fully automated test equipment has been developed for carrying out series of sole positioning tack tests in research and development 3. EN 14510:2005 (E) 5 1 Scope This European Standard specifies a method for determining the sole positio
21、ning tack at bonding of an apparently dry adhesive film, usually after heat reactivation. The method is applicable to all types of heat reactivated or cold bonding adhesives used for sole bonding. It can also be used to assess the influence of soling and upper materials on the sole positioning tack
22、of an adhesive. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 522, Ad
23、hesives for leather and footwear materials - Bond strength Minimum requirements and adhesive classification EN 923:1998, Adhesives - Terms and definitions EN 1067, Adhesives - Examination and preparation of samples for testing EN 1391, Adhesives for leather and footwear materials - A method for eval
24、uating the bondability of materials - Minimum requirements and material classification EN 1392, Adhesives for leather and footwear materials - Solvent-based and dispersion adhesives - Test methods for measuring the bond strength under specified conditions EN ISO 868, Plastics and ebonite - Determina
25、tion of indentation hardness by means of a durometer (Shore hardness) (ISO 868:2003) EN ISO 10365, Adhesives - Designation of main failure patterns (ISO 10365:1992) EN ISO 15605, Adhesives Sampling (ISO 15605:2000) ISO 554, Standard atmospheres for conditioning and/or testing - Specifications 3 Term
26、s and definitions For the purposes of this European Standard, the terms and definitions given in EN 923:1998 and the following apply. sole positioning tack property of a sole attaching adhesive which enables an apparently dry film to form a bond on light contact with a second film, as when a sole is
27、 lightly placed (“spotted“) onto an upper before the shoe passes to a bonding press. Sole positioning tack is characterized by the force in newtons required to separate the bond formed. NOTE The level of sole positioning tack (or “spotting tack“) required may depend on the stiffness of the materials
28、 at bonding. Sole positioning tack is usually associated with heat activated adhesives but can be assessed for cold bonding adhesives and will depend on the adhesive open time, the reactivation temperature and the soling material, especially if substances migrate from the soling into the adhesive du
29、ring the open time. EN 14510:2005 (E) 6 4 Principle Pieces of footwear soling and upper materials are coated with the adhesive to be tested. The adhesive coats are allowed to dry for a specified time. Depending on the requirements, the apparently dry adhesive coats on the soling material or, if spec
30、ified, on both the soling material and the upper material are heat activated to a specified temperature by an infrared radiant heater or in a warm air cabinet. A coat on the soling material and a coat on the upper material are then brought into contact under a specified light pressure. The resulting
31、 bond is broken after 5 s by separating the materials and the maximum separation force required is recorded as a measure of the sole positioning tack (or “spotting tack“). 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to addres
32、s all safety problems, if any, associated with its use. It is the responsibility of the user to establish health and safety practices and to ensure compliance with any European and national regulatory conditions. 6 Adhesive and materials 6.1 Adhesive Identify the adhesive under test in the test repo
33、rt, in particular record name and/or designation, manufacturer, date of manufacture/supply and/or lot number, main polymer and colour. For two-part adhesives identify the nature of the crosslinking agent and the mixing ratio of the components. If a reference test adhesive with specified properties i
34、n accordance with EN 1391 is used, note its designation in the test report. 6.2 Materials Identify type of upper and of soling material used for testing. Record name and/or designation, manufacturer, date of manufacture/supply. For leathers list colour, thickness and type of tannage (if known); for
35、rubber and plastic materials list colour, polymer base and Shore-hardness in accordance with EN ISO 868. Include this identification of the material in the test report. If a reference footwear test material(s) with specified properties in accordance with EN 522 is used, record the designation of the
36、 reference footwear test material(s) in the test report. 7 Apparatus 7.1 Devices for a mechanical treatment of the soling and upper material surfaces according to EN 1392, if required. 7.2 Adhesive applicator e.g. brush, roller or coating machine to apply a uniform coating on the materials used for
37、testing. 7.3 Punches for cutting test pieces with diameter (20 0,5) mm and (30 0,5) mm or optionally a press knife for preparing rectangular test pieces. 7.4 Adhesive (e.g. cyanoacrylate based) suitable for bonding the test pieces to the supports (7.5.4 and 7.5.6). EN 14510:2005 (E) 7 7.5 Tack testi
38、ng machine (see Figure 1), comprising the following items 7.5.1 to 7.5.6 or any other tack testing machine which can be precisely adjusted to the test parameters specified in clause 9. Key 1 Rigid stand 5 Upper test specimen 2 Force gauge 6 Soling test specimen 3 Damping spring 7 Support for soling
39、4 Support for upper Figure 1 Details of tack testing machine and test pieces NOTE Suitable tack testing machines are described in 1, 2 and 3. 7.5.1 Rigid stand with a means of securing the force gauge and driving it up and down on a vertical axis at a speed of (100 10) mm/min. 7.5.2 Force gauge capa
40、ble of measuring and recording compressive and tensile forces up to 1 kN to an accuracy of 5 N. 7.5.3 Means of automatically reversing the direction of travel of the force gauge (5 1) s after a specified compressive force is recorded. 7.5.4 Rigid support, piston with (20 0,5) mm diameter for the upp
41、er material test specimen with a means of securely clamping its ends which, if required, can be heated to a temperature in the range of 40 C to 90 C. EN 14510:2005 (E) 8 7.5.5 Means of attaching the rigid support (7.5.4), inverted, to the force gauge (7.5.2), which incorporates a compressive damping
42、 spring of rate constant (22 2) N/mm to reduce overshoot of the specified compressive force. For safety reasons, the spring is enclosed in a cage, which restricts its extension. 7.5.6 Rigid support minimum size (30 3) mm x (30 3) mm, preferably a piston with (30 3) mm diameter, for the soling materi
43、al test specimen with a means securely clamping its ends which, if required, can be heated to a temperature in the range of 40 C to 90 C. This support is centrally orientated at (90 2) to the upper material support (7.5.4) so that when the bond is made the bonded area forms a circle of 20 mm diamete
44、r. If required: 7.6 Short wavelength infrared radiant heater(s) capable of heating dry adhesive coats on the test pieces (8) within 15 s to a specified temperature in the range of 40 C to 90 C and maintaining the specified temperature within 1 C. NOTE Tack testing machines equipped with short wavele
45、ngth infrared radiant heater(s) are commercially available 1. 7.7 Warm air cabinet capable of enclosing the supports (7.5.4 and 7.5.6) carrying test pieces and heating dry adhesive coats on the test pieces (8) to a specified temperature in the range of 40 C to 90 C and maintaining the specified temp
46、erature within 1 C. NOTE Tack testing machines equipped with warm air cabinets are commercially available 2. 7.8 Device for temperature measurement, preferably a contactless temperature measurement device for ensuring that the temperature of the adhesive coats is within the specified temperature ran
47、ge. 8 Test pieces 8.1 Number of test pieces For carrying out the test in quadruplicate prepare four test pieces of the upper material and four test pieces of the soling material, and in addition extra pieces of the same dimensions for checking the heat activation temperature. 8.2 Form and dimensions
48、 of test pieces Discs of the upper material, diameter (20 0,5) mm. Discs of the soling material, diameter (30 3) mm, or optionally rectangles, minimum dimensions (30 3) mm x (30 3) mm. 8.3 Preparation of test pieces 8.3.1 Preparation of materials Condition upper and soling materials to an equilibriu
49、m state in the standard atmosphere 23/50 according to ISO 554. 8.3.2 Preparation of material surfaces Prepare the material surfaces according to the instructions of the adhesive supplier. If there is no information available and a treatment is required, proceed as described in EN 1392. In any case clean the surfaces with a handbrush so that they are free from dust contamination. EN 14510:2005 (E) 9 8.3.3 Prepa
