EN 13780:2003
(Main)Touch and close fasteners - Determination of longitudinal shear strength
Touch and close fasteners - Determination of longitudinal shear strength
This European Standard specifies a method for determining the longitudinal shear strength of a touch and close fastener.
Haftverschlüsse - Bestimmung der Längsscherfestigkeit
Die vorliegende Europäische Norm legt ein Verfahren zur Bestimmung der Längsscherfestigkeit von Haftver-schlüssen fest.
Fermetures auto-agrippantes - Détermination de la résistance à la traction longitudinale
La présente Norme européenne spécifie une méthode de détermination de la résistance à la traction longitudinale d'une fermeture auto-agrippante.
Sprijemna zapenjala – Ugotavljanje dolžinske strižne sile
General Information
Overview
EN 13780:2003 is a European Standard developed by CEN that specifies a standardized method for determining the longitudinal shear strength of touch and close fasteners, commonly known as hook and loop fasteners. This standard ensures consistent testing procedures for evaluating the durability and shear resistance of these fasteners, which are widely used in textiles, headgear, clothing accessories, and fastening applications.
The standard defines an exact procedure to measure the maximum force required to separate mated fastener tapes by applying shear force parallel to their length. The method includes sample preparation, conditioning, testing apparatus, and calculation of results, providing reliable and reproducible data for manufacturers, quality inspectors, and R&D teams.
Key Topics
1. Scope and Purpose
- Specifies a method for determining the longitudinal shear strength of touch and close fasteners.
- Focuses on the interaction between mated hook and loop tapes under shear load.
2. Test Specimens and Conditioning
- Requires cutting test specimens at least 100 mm long from both male (hook) and female (loop) fastener tapes.
- Specimens must be conditioned for at least 24 hours in a standardized atmosphere to ensure consistent test results.
3. Apparatus
- Uses a constant rate of extension tensile testing machine with data recording capability (minimum 20 points per second).
- Employs a phosphor-bronze metal roller (diameter 100 mm) with specific mass selection based on fastener width, to close the fastener before testing.
- Includes a specialized fork and handle assembly to move the roller without applying excessive force.
4. Testing Procedure
- Mated tapes are overlapped and closed by rolling the metal roller back and forth across the closure multiple times to simulate adhesion.
- The closure is then subjected to tensile shear testing at a constant rate of jaw separation (100 ± 10 mm/min).
- Force data are collected until the fastener separates or one tape fails by tensile breakage.
5. Calculation of Results
- Longitudinal shear strength is calculated by dividing the maximum force required to shear the closure by the effective area of the closure (product of effective width and overlap length).
- Results include the minimum, maximum, and mean shear strengths from multiple combinations of test specimens.
- The mode of failure is recorded and reported.
6. Test Report Requirements
- Must include details such as fastener identification, date of test, overlap length, shear strength values, modes of failure, and any deviations from the standard.
Applications
EN 13780:2003 is essential for manufacturers, quality control laboratories, and textile testing facilities involved with fasteners used in:
- Clothing and Apparel: Ensures the reliability of touch and close fasteners in garments, active wear, and uniforms.
- Headgear and Accessories: Confirms fastener strength in hats, helmets, and other wearable accessories.
- Industrial Textiles: Provides performance data for fasteners used in protective clothing and technical textiles.
- Consumer Products: Verifies fastening performance in consumer goods such as sports equipment, bags, and home textiles.
- R&D and Compliance: Assists product developers in optimizing fastening systems and meeting regulatory or customer standards.
Related Standards
To complement EN 13780:2003, the following related standards offer additional testing and specification guidelines for touch and close fasteners:
- EN 12240 – Determination of the overall and effective widths of tapes and the effective width of a closure, important for calculating effective area in shear strength testing.
- EN 20139 (ISO 139:1973) – Standard atmospheres for conditioning and testing textiles, ensuring consistent environmental conditions for specimen testing.
- EN ISO 7500-1 – Verification of static uniaxial testing machines for tension/compression, specifying requirements for the tensile testing apparatus used in shear strength determination.
By adhering to EN 13780:2003, stakeholders benefit from uniform testing methods that guarantee accurate, comparable, and reliable performance data, enhancing product development, quality assurance, and market acceptance of touch and close fastening systems.
Frequently Asked Questions
EN 13780:2003 is a standard published by the European Committee for Standardization (CEN). Its full title is "Touch and close fasteners - Determination of longitudinal shear strength". This standard covers: This European Standard specifies a method for determining the longitudinal shear strength of a touch and close fastener.
This European Standard specifies a method for determining the longitudinal shear strength of a touch and close fastener.
EN 13780:2003 is classified under the following ICS (International Classification for Standards) categories: 61.040 - Headgear. Clothing accessories. Fastening of clothing. The ICS classification helps identify the subject area and facilitates finding related standards.
You can purchase EN 13780:2003 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sprijemna zapenjala – Ugotavljanje dolžinske strižne sileHaftverschlüsse - Bestimmung der LängsscherfestigkeitFermetures auto-agrippantes - Détermination de la résistance a la traction longitudinaleTouch and close fasteners - Determination of longitudinal shear strength61.040Headgear. Clothing accessories. Fastening of clothingICS:Ta slovenski standard je istoveten z:EN 13780:2003SIST EN 13780:2003en01-april-2003SIST EN 13780:2003SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13780February 2003ICS 61.040English versionTouch and close fasteners - Determination of longitudinal shearstrengthFermetures auto-agrippantes - Détermination de larésistance à la traction longitudinaleHaftverschlüsse - Bestimmung der LängsscherfestigkeitThis European Standard was approved by CEN on 12 December 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13780:2003 ESIST EN 13780:2003
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...