EN 1719:1998

Overview

EN 1719:1998 is a European Standard developed by CEN that specifies a precise methodology for measuring the loop tack of pressure sensitive adhesives (PSAs). This standard focuses on adhesives used specifically on paper and board, as well as in packaging and disposable sanitary products. The loop tack test provides a quantifiable measurement of the initial tackiness or stickiness of coated PSAs when pressure is applied, which is critical for product performance and quality control.

Understanding and implementing the EN 1719 test method ensures consistent adhesive performance, optimized product design, and enhanced customer satisfaction in industries relying on pressure sensitive adhesive applications.

Key Topics

• Scope: Measurement of loop tack for coated pressure sensitive adhesives on paper, board, packaging materials, and disposable sanitary products.
• Test Method: Describes a standardized loop tack testing procedure to assess immediate adhesive properties.
• Pressure Sensitive Adhesives (PSA): Focus on coated adhesive films which bond upon light pressure without activation from water, heat, or solvents.
• Loop Tack Definition: The initial tack or adhesive stickiness measured by forming a looped adhesive tape and pressing it onto a test surface under controlled conditions.
• Test Significance: Provides reliable data to predict adhesive bonding performance during fabrication and end use.
• Standard Alignment: The EN 1719 method harmonizes testing practices across manufacturers and suppliers, facilitating quality benchmarking.

Applications

• Packaging Industry: Ensures optimal adhesive tack for labels, seals, and closures on paper-based packages, improving packaging integrity and consumer appeal.
• Disposable Sanitary Products: Validates adhesive performance for products like diapers and wipes, affecting reliability and user comfort.
• Paper and Board Manufacturing: Assists in product development by evaluating adhesive formulations for attaching layers or labels.
• Quality Control Laboratories: Provides a reproducible test to monitor adhesive batch consistency and troubleshoot manufacturing issues.
• Adhesive Suppliers: Enables accurate comparisons between adhesive products, supporting customer recommendations and technical documentation.

Related Standards

• EN 1939: Specifies a peel adhesion test for pressure sensitive adhesives, complementing loop tack evaluations.
• ISO 8295: International standard detailing the loop tack test method, useful for cross-referencing methodologies.
• EN 1465: Addresses peel adhesion resistance of pressure sensitive tapes, often used alongside tack measurements.
• EN 14410: Covers shear resistance tests for PSAs, providing additional parameters for comprehensive adhesive characterization.

Adopting EN 1719:1998 ensures adherence to recognized European testing protocols for pressure sensitive adhesives on paper and board materials, thus elevating product reliability and market acceptance in adhesive-dependent industries.