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1、BRITISH STANDARD BS EN 1391:1998 Adhesives for leather and footwear materials A method for evaluating the bondability of materials Minimum requirements and material classification The European Standard EN 1391:1998 has the status of a British Standard ICS 61.060; 83.180 Licensed Copy: sheffieldun sh
2、effieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1391:1998 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 July 199
3、8 BSI 04-1999 ISBN 0 580 29635 0 National foreword This British Standard is the English language version of EN 1391:1998 published by the European Committee for Standardization (CEN). The UK participation in its preparation was entrusted to Technical Committee STI/52, Adhesives, which has the respon
4、sibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organiza
5、tions 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 Standards Catalogue under the section entitled “International Standards
6、Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard do
7、es not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 5 and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This
8、 will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1391:1998 BSI 04-1999i Contents Page National forewordInside
9、front cover Foreword2 Text of EN 13913 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EURO
10、PISCHE NORM EN 1391 February 1998 ICS 61.060; 83.180 Descriptors: Bondability, footwear, materials, leather, rubber, polyvinyl chloride, adhesive, bonding, destructive test, bond strength, peel test, shear test, creep test at elevated temperature, testing conditions, classification English version A
11、dhesive for leather and footwear materials A method for evaluating the bondability of materials Minimum requirements and material classification Adhsifs pour cuir et matriaux de la chaussure Une mthode dvaluation de laptitude ladhsion Prescriptions minimales et classification des matriaux Klebstoffe
12、 fr Leder und Schuhwerkstoffe Verfahren zur Beurteilung der Klebbarkeit von Werkstoffen Mindestanforderungen und Werkstoffklassifikation This European Standard was approved by CEN on 24 January 1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the condit
13、ions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical 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 o
14、fficial versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN 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 Austri
15、a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central S
16、ecretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1391:1998 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1391:199
17、8 BSI 04-1999 2 Foreword This European Standard has been prepared by Technical Committee CEN/TC 193, Adhesives, the Secretariat of which is held by AENOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the lat
18、est by August 1998, and conflicting national standards shall be withdrawn at the latest by August 1998. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic,
19、Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Definitions3 4Principle3 5Safety3 6Requirements4 7Test methods4 8Test report5 9Materia
20、l classification5 Table 1 Classes of bondability5 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1391:1998 BSI 04-19993 1 Scope This standard specifies a method for evaluating the bondability of leather and footwear materials in particul
21、ar soling and upper materials in stuck-on assemblies using solvent-based or dispersion adhesives under specified conditions. It defines some minimum bond strength requirements for assessing the bondability of leather and footwear materials used for the manufacture of footwear, and establishes a clas
22、sification of these materials based on the results obtained with reference test adhesives representing types of adhesives often used for sole attachment in footwear manufacture. This classification is intended to assist the manufacturers of footwear in selecting and processing materials of certified
23、 bondability. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendmen
24、ts to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 923, Adhesives Terms and definitions. EN 1392:1998, Adhesives for leather and fo
25、otwear materials Solvent-based and dispersion adhesives Test methods for measuring the bond strength under specified conditions. EN ISO 10365, Adhesives Designation of main failure patterns. (ISO 10365:1992) ISO 554, Standard atmospheres for conditioning and/or testing Specifications. ISO 868, Plast
26、ics and ebonite Determination of indentation hardness by means of a durometer (Shore hardness). 3 Definitions For the purposes of this standard, the definitions in accordance with EN 923, and the following definitions apply. 3.1 bondability ability of a material to form a bond of specified propertie
27、s with a specified adhesive under specified conditions 3.2 leather tanned animal skin, usually free of hair 3.3 footwear materials natural and synthetic materials which are suitable for footwear manufacture or repair and have adequate wear properties as upper or sole material 4 Principle The surface
28、 of the leather or the footwear material to be tested is treated by a method specific to the type of material. Then strips of specified length and width are cut from the treated material. Two of these strips or one strip of the material to be tested together with one strip of a suitable different ma
29、terial are bonded by a test adhesive to test pieces of specified form. If the bondability of a material to be tested is to be classified, a specific reference test adhesive shall be used. The test pieces shall be stored under specified conditions and their bond strength determined under specified co
30、nditions. 5 Safety Persons using this standard shall be familiar with normal laboratory practice. This standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish safety and health practices and to ensure compliance
31、 with any European or national regulatory conditions. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1391:1998 4 BSI 04-1999 6 Requirements 6.1 General In practice, leather and footwear material bonds are usually part of complex structur
32、es which are subjected to various stresses and used in different climates. All requirements met in practice cannot be covered by one single standard. This standard only defines some minimum requirements for evaluating the bondability of leather and footwear materials. 6.2 Material identification The
33、 leather or footwear material under test shall be identified by name and/or designation, manufacturer, date of manufacture/supply, type of leather or footwear material, e.g. soling or upper material. For leathers the colour, thickness and type of tannage (if known) shall be listed; for rubber and pl
34、astic materials, colour, polymer base and Shore-hardness shall be in accordance with ISO 868. Identification of the material shall be included in the test report. 6.3 Minimum requirements 6.3.1 The initial peel resistance, 2 min after assembling shall be not less than 1,0 N/mm. 6.3.2 The peel resist
35、ance after three days to five days storage in the standard atmosphere 23/50 in accordance with ISO 554 shall be not less than 5,0 N/mm. 6.3.3 The peel resistance after seven days at (50 2) C and two days to four days storage in the standard atmosphere 23/50 in accordance with ISO 554 shall be not le
36、ss than 80 % of the value determined in accordance with 6.3.2 but not less than 5,0 N/mm. 6.3.4 The shear strength after three days to five days storage in the standard atmosphere 23/50 in accordance with ISO 554 shall be not less than 2,0 MPa. 6.3.5 The peel resistance at a load of 1,5 kg at (50 2)
37、 C for 10 min (“creep resistance”) shall be less than 10 mm. The above mentioned minimum requirements shall be considered fulfilled if cohesive substrate failure (CSF) in accordance with EN ISO 10365 occurs. Occurrence of cohesive substrate failure and the value at which it was stated shall be recor
38、ded in the test report and taken into consideration in the classification of the bondability of the material in accordance with clause 9 of this standard. 7 Test methods 7.1 Types of tests 7.1.1 Peel test at (23 2) C In accordance with EN 1392. 7.1.2 Shear test at (23 2) C In accordance with EN 1392
39、. 7.1.3 Peel test at (50 2) C for 10 min at a constant load of 1,5 kg (“creep test”) In accordance with EN 1392. 7.2 Reference adhesives 7.2.1 General reference adhesives The adhesive which is to be used as reference adhesive, shall be generally suitable for bonding footwear materials because of its
40、 intrinsic generic properties. The reference adhesive shall be identified by name and/or designation, manufacturer, date of manufacture/supply and/or lot number, main polymer and colour. For two-part adhesives the nature of the crosslinking agent and the mixing ratio of the components shall be ident
41、ified. 7.2.2 Reference test adhesives If the test leather or footwear material have to be classified in accordance with clause 9 the following reference test adhesives shall be used: NOTE 1In the footwear industry a large number of different adhesives are used for sole attachment offering a broad ra
42、nge of technical effects. From the most important and most commonly used adhesives groups based on polychloroprene and polyurethane the following simply formulated one and two part adhesives have been selected as reference test adhesives. These can be considered as typical adhesives of these types.
43、a) reference test adhesive CR 1: one part polychloroprene adhesive; b) reference test adhesive CR 2: two part polychloroprene/polyisocyanate adhesive; c) reference test adhesive PU 1: one part polyurethane adhesive; d) reference test adhesive PU 2: two part polyurethane/polyisocyanate adhesive. NOTE
44、 2The properties and the suitability of the test adhesives listed should be checked and ensured by the supplier. 7.3 Preparation of test pieces In accordance with 6.6 of EN 1392:1998. Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 12:31:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 1391:1
45、998 BSI 04-19995 7.4 Storage of test pieces Before testing, all test pieces shall be stored as specified in 6.3. Store test pieces for measuring the minimum requirements in compliance with 6.3.3 for three days to five days and in compliance with 6.3.5 for five days to seven days in the standard atmo
46、sphere of 23/50 in accordance with ISO 554 before warming up to (50 2) C in an oven or in a warm air cabinet respectively. 7.5 Procedures and evaluation In accordance with EN 1392. 8 Test report The test report shall include: a) a reference to this European Standard; b) a complete identification of
47、the leather or footwear material tested in accordance with 6.2; c) a complete identification of the reference adhesive(s) used for the preparation of the test pieces in accordance with 7.2.1 or the designation of the reference test adhesive (see 7.2.2); d) preparation of the bonding surfaces of the
48、leather or footwear material in accordance with EN 1392; e) a complete identification of the bonding procedure in accordance with EN 1392 (adhesive applicator, number of adhesive coats applied, length of intermediate drying periods, contact or heat activated bonding, activation temperature of the ad
49、hesive coats, etc.); f) a description of the conditions of storage of the test pieces; g) test results, individual and mean values and mode of failure in accordance with EN 1392; h) all factors which have affected the results; i) classification of the footwear material tested in accordance with clause 9; j) the date of test. 9 Material classification 9.1 General Where tests have been carried out with reference test adhesives (see 7.2) and satisfactory results have been obtained in compliance with 6.3.1 to 6.3
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